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Make Telodendria use Cytoplasm. 

This commit removes all the duplicate code and makes Telodendria use the
new Cytoplasm library.
This commit is contained in:
Jordan Bancino 2023-05-14 19:35:23 +00:00
parent 5c8a42117c
commit 8021cff122
55 changed files with 34 additions and 14068 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Cytoplasm/LICENSE.txt
View File

@ -1,5 +1,4 @@
/*
* Cytoplasm (libcytoplasm)
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person

4
Cytoplasm/make.sh
View File

@ -122,6 +122,10 @@ recipe_docs() {
fi
}
recipe_libs() {
echo "-lm -pthread ${TLS_LIBS}"
}
recipe_build() {
mkdir -p "${BUILD}" ${OUT}/{bin,lib}
cd "${SRC}"

339
src/Array.c
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@ -1,339 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Array.h>
#ifndef ARRAY_BLOCK
#define ARRAY_BLOCK 16
#endif
#include <stddef.h>
#include <Memory.h>
struct Array
{
void **entries; /* An array of void pointers, to
* store any data */
size_t allocated; /* Elements allocated on the heap */
size_t size; /* Elements actually filled */
};
int
ArrayAdd(Array * array, void *value)
{
if (!array)
{
return 0;
}
return ArrayInsert(array, array->size, value);
}
Array *
ArrayCreate(void)
{
Array *array = Malloc(sizeof(Array));
if (!array)
{
return NULL;
}
array->size = 0;
array->allocated = ARRAY_BLOCK;
array->entries = Malloc(sizeof(void *) * ARRAY_BLOCK);
if (!array->entries)
{
Free(array);
return NULL;
}
return array;
}
void *
ArrayDelete(Array * array, size_t index)
{
size_t i;
void *element;
if (!array || array->size <= index)
{
return NULL;
}
element = array->entries[index];
for (i = index; i < array->size - 1; i++)
{
array->entries[i] = array->entries[i + 1];
}
array->size--;
return element;
}
void
ArrayFree(Array * array)
{
if (array)
{
Free(array->entries);
Free(array);
}
}
void *
ArrayGet(Array * array, size_t index)
{
if (!array)
{
return NULL;
}
if (index >= array->size)
{
return NULL;
}
return array->entries[index];
}
extern int
ArrayInsert(Array * array, size_t index, void *value)
{
size_t i;
if (!array || !value || index > array->size)
{
return 0;
}
if (array->size >= array->allocated)
{
void **tmp;
size_t newSize = array->allocated + ARRAY_BLOCK;
tmp = array->entries;
array->entries = Realloc(array->entries,
sizeof(void *) * newSize);
if (!array->entries)
{
array->entries = tmp;
return 0;
}
array->allocated = newSize;
}
for (i = array->size; i > index; i--)
{
array->entries[i] = array->entries[i - 1];
}
array->size++;
array->entries[index] = value;
return 1;
}
extern void *
ArraySet(Array * array, size_t index, void *value)
{
void *oldValue;
if (!value)
{
return ArrayDelete(array, index);
}
if (!array)
{
return NULL;
}
if (index >= array->size)
{
return NULL;
}
oldValue = array->entries[index];
array->entries[index] = value;
return oldValue;
}
size_t
ArraySize(Array * array)
{
if (!array)
{
return 0;
}
return array->size;
}
int
ArrayTrim(Array * array)
{
void **tmp;
if (!array)
{
return 0;
}
tmp = array->entries;
array->entries = Realloc(array->entries,
sizeof(void *) * array->size);
if (!array->entries)
{
array->entries = tmp;
return 0;
}
return 1;
}
static void
ArraySwap(Array * array, size_t i, size_t j)
{
void *p = array->entries[i];
array->entries[i] = array->entries[j];
array->entries[j] = p;
}
static size_t
ArrayPartition(Array * array, size_t low, size_t high, int (*compare) (void *, void *))
{
void *pivot = array->entries[high];
size_t i = low - 1;
size_t j;
for (j = low; j <= high - 1; j++)
{
if (compare(array->entries[j], pivot) < 0)
{
i++;
ArraySwap(array, i, j);
}
}
ArraySwap(array, i + 1, high);
return i + 1;
}
static void
ArrayQuickSort(Array * array, size_t low, size_t high, int (*compare) (void *, void *))
{
if (low < high)
{
size_t pi = ArrayPartition(array, low, high, compare);
ArrayQuickSort(array, low, pi - 1, compare);
ArrayQuickSort(array, pi + 1, high, compare);
}
}
void
ArraySort(Array * array, int (*compare) (void *, void *))
{
if (!array)
{
return;
}
ArrayQuickSort(array, 0, array->size, compare);
}
/* Even though the following operations could be done using only the
* public Array API defined above, I opted for low-level struct
* manipulation because it allows much more efficient copying; we only
* allocate what we for sure need upfront, and don't have to
* re-allocate during the operation. */
Array *
ArrayFromVarArgs(size_t n, va_list ap)
{
size_t i;
Array *arr = Malloc(sizeof(Array));
if (!arr)
{
return NULL;
}
arr->size = n;
arr->allocated = n;
arr->entries = Malloc(sizeof(void *) * arr->allocated);
if (!arr->entries)
{
Free(arr);
return NULL;
}
for (i = 0; i < n; i++)
{
arr->entries[i] = va_arg(ap, void *);
}
return arr;
}
Array *
ArrayDuplicate(Array * arr)
{
size_t i;
Array *arr2 = Malloc(sizeof(Array));
if (!arr2)
{
return NULL;
}
arr2->size = arr->size;
arr2->allocated = arr->size;
arr2->entries = Malloc(sizeof(void *) * arr->allocated);
if (!arr2->entries)
{
Free(arr2);
return NULL;
}
for (i = 0; i < arr2->size; i++)
{
arr2->entries[i] = arr->entries[i];
}
return arr2;
}

244
src/Base64.c
View File

@ -1,244 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Base64.h>
#include <Memory.h>
static const char Base64EncodeMap[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const int Base64DecodeMap[] = {
62, -1, -1, -1, 63, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, 51
};
size_t
Base64EncodedSize(size_t inputSize)
{
size_t size = inputSize;
if (inputSize % 3)
{
size += 3 - (inputSize % 3);
}
size /= 3;
size *= 4;
return size;
}
size_t
Base64DecodedSize(const char *base64, size_t len)
{
size_t ret;
size_t i;
if (!base64)
{
return 0;
}
ret = len / 4 * 3;
for (i = len; i > 0; i--)
{
if (base64[i] == '=')
{
ret--;
}
else
{
break;
}
}
return ret;
}
char *
Base64Encode(const char *input, size_t len)
{
char *out;
size_t outLen;
size_t i, j, v;
if (!input || !len)
{
return NULL;
}
outLen = Base64EncodedSize(len);
out = Malloc(outLen + 1);
if (!out)
{
return NULL;
}
out[outLen] = '\0';
for (i = 0, j = 0; i < len; i += 3, j += 4)
{
v = input[i];
v = i + 1 < len ? v << 8 | input[i + 1] : v << 8;
v = i + 2 < len ? v << 8 | input[i + 2] : v << 8;
out[j] = Base64EncodeMap[(v >> 18) & 0x3F];
out[j + 1] = Base64EncodeMap[(v >> 12) & 0x3F];
if (i + 1 < len)
{
out[j + 2] = Base64EncodeMap[(v >> 6) & 0x3F];
}
else
{
out[j + 2] = '=';
}
if (i + 2 < len)
{
out[j + 3] = Base64EncodeMap[v & 0x3F];
}
else
{
out[j + 3] = '=';
}
}
return out;
}
static int
Base64IsValidChar(char c)
{
return (c >= '0' && c <= '9') ||
(c >= 'A' && c <= 'Z') ||
(c >= 'a' && c <= 'z') ||
(c == '+') ||
(c == '/') ||
(c == '=');
}
char *
Base64Decode(const char *input, size_t len)
{
size_t i, j;
int v;
size_t outLen;
char *out;
if (!input)
{
return NULL;
}
outLen = Base64DecodedSize(input, len);
if (len % 4)
{
/* Invalid length; must have incorrect padding */
return NULL;
}
/* Scan for invalid characters. */
for (i = 0; i < len; i++)
{
if (!Base64IsValidChar(input[i]))
{
return NULL;
}
}
out = Malloc(outLen + 1);
if (!out)
{
return NULL;
}
out[outLen] = '\0';
for (i = 0, j = 0; i < len; i += 4, j += 3)
{
v = Base64DecodeMap[input[i] - 43];
v = (v << 6) | Base64DecodeMap[input[i + 1] - 43];
v = input[i + 2] == '=' ? v << 6 : (v << 6) | Base64DecodeMap[input[i + 2] - 43];
v = input[i + 3] == '=' ? v << 6 : (v << 6) | Base64DecodeMap[input[i + 3] - 43];
out[j] = (v >> 16) & 0xFF;
if (input[i + 2] != '=')
out[j + 1] = (v >> 8) & 0xFF;
if (input[i + 3] != '=')
out[j + 2] = v & 0xFF;
}
return out;
}
extern void
Base64Unpad(char *base64, size_t length)
{
if (!base64)
{
return;
}
while (base64[length - 1] == '=')
{
length--;
}
base64[length] = '\0';
}
extern int
Base64Pad(char **base64Ptr, size_t length)
{
char *tmp;
size_t newSize;
size_t i;
if (length % 4 == 0)
{
return length; /* Success: no padding needed */
}
newSize = length + (4 - (length % 4));
tmp = Realloc(*base64Ptr, newSize + 100);;
if (!tmp)
{
return 0; /* Memory error */
}
*base64Ptr = tmp;
for (i = length; i < newSize; i++)
{
(*base64Ptr)[i] = '=';
}
(*base64Ptr)[newSize] = '\0';
return newSize;
}

249
src/Cron.c
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@ -1,249 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Cron.h>
#include <Array.h>
#include <Memory.h>
#include <Util.h>
#include <pthread.h>
struct Cron
{
unsigned long tick;
Array *jobs;
pthread_mutex_t lock;
volatile unsigned int stop:1;
pthread_t thread;
};
typedef struct Job
{
unsigned long interval;
unsigned long lastExec;
JobFunc *func;
void *args;
} Job;
static Job *
JobCreate(long interval, JobFunc * func, void *args)
{
Job *job;
if (!func)
{
return NULL;
}
job = Malloc(sizeof(Job));
if (!job)
{
return NULL;
}
job->interval = interval;
job->lastExec = 0;
job->func = func;
job->args = args;
return job;
}
static void *
CronThread(void *args)
{
Cron *cron = args;
while (!cron->stop)
{
size_t i;
unsigned long ts; /* tick start */
unsigned long te; /* tick end */
pthread_mutex_lock(&cron->lock);
ts = UtilServerTs();
for (i = 0; i < ArraySize(cron->jobs); i++)
{
Job *job = ArrayGet(cron->jobs, i);
if (ts - job->lastExec > job->interval)
{
job->func(job->args);
job->lastExec = ts;
}
if (!job->interval)
{
ArrayDelete(cron->jobs, i);
Free(job);
}
}
te = UtilServerTs();
pthread_mutex_unlock(&cron->lock);
/* Only sleep if the jobs didn't overrun the tick */
if (cron->tick > (te - ts))
{
const unsigned long microTick = 100;
unsigned long remainingTick = cron->tick - (te - ts);
/* Only sleep for microTick ms at a time because if the job
* scheduler is supposed to stop before the tick is up, we
* don't want to be stuck in a long sleep */
while (remainingTick >= microTick && !cron->stop)
{
UtilSleepMillis(microTick);
remainingTick -= microTick;
}
if (remainingTick && !cron->stop)
{
UtilSleepMillis(remainingTick);
}
}
}
return NULL;
}
Cron *
CronCreate(unsigned long tick)
{
Cron *cron = Malloc(sizeof(Cron));
if (!cron)
{
return NULL;
}
cron->jobs = ArrayCreate();
if (!cron->jobs)
{
Free(cron);
return NULL;
}
cron->tick = tick;
cron->stop = 1;
pthread_mutex_init(&cron->lock, NULL);
return cron;
}
void
CronOnce(Cron * cron, JobFunc * func, void *args)
{
Job *job;
if (!cron || !func)
{
return;
}
job = JobCreate(0, func, args);
if (!job)
{
return;
}
pthread_mutex_lock(&cron->lock);
ArrayAdd(cron->jobs, job);
pthread_mutex_unlock(&cron->lock);
}
void
CronEvery(Cron * cron, unsigned long interval, JobFunc * func, void *args)
{
Job *job;
if (!cron || !func)
{
return;
}
job = JobCreate(interval, func, args);
if (!job)
{
return;
}
pthread_mutex_lock(&cron->lock);
ArrayAdd(cron->jobs, job);
pthread_mutex_unlock(&cron->lock);
}
void
CronStart(Cron * cron)
{
if (!cron || !cron->stop)
{
return;
}
cron->stop = 0;
pthread_create(&cron->thread, NULL, CronThread, cron);
}
void
CronStop(Cron * cron)
{
if (!cron || cron->stop)
{
return;
}
cron->stop = 1;
pthread_join(cron->thread, NULL);
}
void
CronFree(Cron * cron)
{
size_t i;
if (!cron)
{
return;
}
CronStop(cron);
pthread_mutex_lock(&cron->lock);
for (i = 0; i < ArraySize(cron->jobs); i++)
{
Free(ArrayGet(cron->jobs, i));
}
ArrayFree(cron->jobs);
pthread_mutex_unlock(&cron->lock);
pthread_mutex_destroy(&cron->lock);
Free(cron);
}

968
src/Db.c
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@ -1,968 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Db.h>
#include <Memory.h>
#include <Json.h>
#include <Util.h>
#include <Str.h>
#include <Stream.h>
#include <Log.h>
#include <sys/types.h>
#include <dirent.h>
#include <pthread.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
struct Db
{
char *dir;
pthread_mutex_t lock;
size_t cacheSize;
size_t maxCache;
HashMap *cache;
/*
* The cache uses a double linked list (see DbRef
* below) to know which objects are most and least
* recently used. The following diagram helps me
* know what way all the pointers go, because it
* can get very confusing sometimes. For example,
* there's nothing stopping "next" from pointing to
* least recent, and "prev" from pointing to most
* recent, so hopefully this clarifies the pointer
* terminology used when dealing with the linked
* list:
*
* mostRecent leastRecent
* | prev prev | prev
* +---+ ---> +---+ ---> +---+ ---> NULL
* |ref| |ref| |ref|
* NULL <--- +---+ <--- +---+ <--- +---+
* next next next
*/
DbRef *mostRecent;
DbRef *leastRecent;
};
struct DbRef
{
HashMap *json;
unsigned long ts;
size_t size;
Array *name;
DbRef *prev;
DbRef *next;
int fd;
Stream *stream;
};
static void
StringArrayFree(Array * arr)
{
size_t i;
for (i = 0; i < ArraySize(arr); i++)
{
Free(ArrayGet(arr, i));
}
ArrayFree(arr);
}
static ssize_t DbComputeSize(HashMap *);
static ssize_t
DbComputeSizeOfValue(JsonValue * val)
{
MemoryInfo *a;
ssize_t total = 0;
size_t i;
union
{
char *str;
Array *arr;
} u;
if (!val)
{
return -1;
}
a = MemoryInfoGet(val);
if (a)
{
total += MemoryInfoGetSize(a);
}
switch (JsonValueType(val))
{
case JSON_OBJECT:
total += DbComputeSize(JsonValueAsObject(val));
break;
case JSON_ARRAY:
u.arr = JsonValueAsArray(val);
a = MemoryInfoGet(u.arr);
if (a)
{
total += MemoryInfoGetSize(a);
}
for (i = 0; i < ArraySize(u.arr); i++)
{
total += DbComputeSizeOfValue(ArrayGet(u.arr, i));
}
break;
case JSON_STRING:
u.str = JsonValueAsString(val);
a = MemoryInfoGet(u.str);
if (a)
{
total += MemoryInfoGetSize(a);
}
break;
case JSON_NULL:
case JSON_INTEGER:
case JSON_FLOAT:
case JSON_BOOLEAN:
default:
/* These don't use any extra heap space */
break;
}
return total;
}
static ssize_t
DbComputeSize(HashMap * json)
{
char *key;
JsonValue *val;
MemoryInfo *a;
size_t total;
if (!json)
{
return -1;
}
total = 0;
a = MemoryInfoGet(json);
if (a)
{
total += MemoryInfoGetSize(a);
}
while (HashMapIterate(json, &key, (void **) &val))
{
a = MemoryInfoGet(key);
if (a)
{
total += MemoryInfoGetSize(a);
}
total += DbComputeSizeOfValue(val);
}
return total;
}
static char *
DbHashKey(Array * args)
{
size_t i;
char *str = NULL;
for (i = 0; i < ArraySize(args); i++)
{
char *tmp = StrConcat(2, str, ArrayGet(args, i));
Free(str);
str = tmp;
}
return str;
}
static char *
DbDirName(Db * db, Array * args, size_t strip)
{
size_t i;
char *str = StrConcat(2, db->dir, "/");
for (i = 0; i < ArraySize(args) - strip; i++)
{
char *tmp;
tmp = StrConcat(3, str, ArrayGet(args, i), "/");
Free(str);
str = tmp;
}
return str;
}
static char *
DbFileName(Db * db, Array * args)
{
size_t i;
char *str = StrConcat(2, db->dir, "/");
for (i = 0; i < ArraySize(args); i++)
{
char *tmp;
char *arg = StrDuplicate(ArrayGet(args, i));
size_t j = 0;
/* Sanitize name to prevent directory traversal attacks */
while (arg[j])
{
switch (arg[j])
{
case '/':
arg[j] = '_';
break;
case '.':
arg[j] = '-';
break;
default:
break;
}
j++;
}
tmp = StrConcat(3, str, arg,
(i < ArraySize(args) - 1) ? "/" : ".json");
Free(arg);
Free(str);
str = tmp;
}
return str;
}
static void
DbCacheEvict(Db * db)
{
DbRef *ref = db->leastRecent;
DbRef *tmp;
while (ref && db->cacheSize > db->maxCache)
{
char *hash;
JsonFree(ref->json);
hash = DbHashKey(ref->name);
HashMapDelete(db->cache, hash);
Free(hash);
StringArrayFree(ref->name);
db->cacheSize -= ref->size;
if (ref->next)
{
ref->next->prev = ref->prev;
}
else
{
db->mostRecent = ref->prev;
}
if (ref->prev)
{
ref->prev->next = ref->next;
}
else
{
db->leastRecent = ref->next;
}
tmp = ref->next;
Free(ref);
ref = tmp;
}
}
Db *
DbOpen(char *dir, size_t cache)
{
Db *db;
pthread_mutexattr_t attr;
if (!dir)
{
return NULL;
}
db = Malloc(sizeof(Db));
if (!db)
{
return NULL;
}
db->dir = dir;
db->maxCache = cache;
pthread_mutexattr_init(&attr);
pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
pthread_mutex_init(&db->lock, &attr);
pthread_mutexattr_destroy(&attr);
db->mostRecent = NULL;
db->leastRecent = NULL;
db->cacheSize = 0;
if (db->maxCache)
{
db->cache = HashMapCreate();
if (!db->cache)
{
return NULL;
}
}
else
{
db->cache = NULL;
}
return db;
}
void
DbMaxCacheSet(Db * db, size_t cache)
{
if (!db)
{
return;
}
pthread_mutex_lock(&db->lock);
db->maxCache = cache;
if (db->maxCache && !db->cache)
{
db->cache = HashMapCreate();
db->cacheSize = 0;
}
DbCacheEvict(db);
pthread_mutex_unlock(&db->lock);
}
void
DbClose(Db * db)
{
if (!db)
{
return;
}
pthread_mutex_lock(&db->lock);
DbMaxCacheSet(db, 0);
DbCacheEvict(db);
HashMapFree(db->cache);
pthread_mutex_unlock(&db->lock);
pthread_mutex_destroy(&db->lock);
Free(db);
}
static DbRef *
DbLockFromArr(Db * db, Array * args)
{
char *file;
char *hash;
DbRef *ref;
struct flock lock;
int fd;
Stream *stream;
if (!db || !args)
{
return NULL;
}
ref = NULL;
hash = NULL;
pthread_mutex_lock(&db->lock);
/* Check if the item is in the cache */
hash = DbHashKey(args);
ref = HashMapGet(db->cache, hash);
file = DbFileName(db, args);
fd = open(file, O_RDWR);
if (fd == -1)
{
if (ref)
{
HashMapDelete(db->cache, hash);
JsonFree(ref->json);
StringArrayFree(ref->name);
db->cacheSize -= ref->size;
if (ref->next)
{
ref->next->prev = ref->prev;
}
else
{
db->mostRecent = ref->prev;
}
if (ref->prev)
{
ref->prev->next = ref->next;
}
else
{
db->leastRecent = ref->next;
}
if (!db->leastRecent)
{
db->leastRecent = db->mostRecent;
}
Free(ref);
}
ref = NULL;
goto finish;
}
stream = StreamFd(fd);
lock.l_start = 0;
lock.l_len = 0;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
/* Lock the file on the disk */
if (fcntl(fd, F_SETLK, &lock) < 0)
{
StreamClose(stream);
ref = NULL;
goto finish;
}
if (ref) /* In cache */
{
unsigned long diskTs = UtilLastModified(file);
ref->fd = fd;
ref->stream = stream;
if (diskTs > ref->ts)
{
/* File was modified on disk since it was cached */
HashMap *json = JsonDecode(ref->stream);
if (!json)
{
StreamClose(ref->stream);
ref = NULL;
goto finish;
}
JsonFree(ref->json);
ref->json = json;
ref->ts = diskTs;
ref->size = DbComputeSize(ref->json);
}
/* Float this ref to mostRecent */
if (ref->next)
{
ref->next->prev = ref->prev;
if (!ref->prev)
{
db->leastRecent = ref->next;
}
else
{
ref->prev->next = ref->next;
}
ref->prev = db->mostRecent;
ref->next = NULL;
if (db->mostRecent)
{
db->mostRecent->next = ref;
}
db->mostRecent = ref;
}
/* If there is no least recent, this is the only thing in the
* cache, so it is also least recent. */
if (!db->leastRecent)
{
db->leastRecent = ref;
}
/* The file on disk may be larger than what we have in memory,
* which may require items in cache to be evicted. */
DbCacheEvict(db);
}
else
{
Array *name;
size_t i;
/* Not in cache; load from disk */
ref = Malloc(sizeof(DbRef));
if (!ref)
{
StreamClose(stream);
goto finish;
}
ref->json = JsonDecode(stream);
if (!ref->json)
{
Free(ref);
StreamClose(stream);
ref = NULL;
goto finish;
}
ref->fd = fd;
ref->stream = stream;
name = ArrayCreate();
for (i = 0; i < ArraySize(args); i++)
{
ArrayAdd(name, StrDuplicate(ArrayGet(args, i)));
}
ref->name = name;
if (db->cache)
{
ref->ts = UtilServerTs();
ref->size = DbComputeSize(ref->json);
HashMapSet(db->cache, hash, ref);
db->cacheSize += ref->size;
ref->next = NULL;
ref->prev = db->mostRecent;
if (db->mostRecent)
{
db->mostRecent->next = ref;
}
db->mostRecent = ref;
if (!db->leastRecent)
{
db->leastRecent = ref;
}
/* Adding this item to the cache may case it to grow too
* large, requiring some items to be evicted */
DbCacheEvict(db);
}
}
finish:
if (!ref)
{
pthread_mutex_unlock(&db->lock);
}
Free(file);
Free(hash);
return ref;
}
DbRef *
DbCreate(Db * db, size_t nArgs,...)
{
Stream *fp;
char *file;
char *dir;
va_list ap;
Array *args;
DbRef *ret;
if (!db)
{
return NULL;
}
va_start(ap, nArgs);
args = ArrayFromVarArgs(nArgs, ap);
va_end(ap);
if (!args)
{
return NULL;
}
pthread_mutex_lock(&db->lock);
file = DbFileName(db, args);
if (UtilLastModified(file))
{
Free(file);
ArrayFree(args);
pthread_mutex_unlock(&db->lock);
return NULL;
}
dir = DbDirName(db, args, 1);
if (UtilMkdir(dir, 0750) < 0)
{
Free(file);
ArrayFree(args);
Free(dir);
pthread_mutex_unlock(&db->lock);
return NULL;
}
Free(dir);
fp = StreamOpen(file, "w");
Free(file);
if (!fp)
{
ArrayFree(args);
pthread_mutex_unlock(&db->lock);
return NULL;
}
StreamPuts(fp, "{}");
StreamClose(fp);
/* DbLockFromArr() will lock again for us */
pthread_mutex_unlock(&db->lock);
ret = DbLockFromArr(db, args);
ArrayFree(args);
return ret;
}
int
DbDelete(Db * db, size_t nArgs,...)
{
va_list ap;
Array *args;
char *file;
char *hash;
int ret = 1;
DbRef *ref;
if (!db)
{
return 0;
}
va_start(ap, nArgs);
args = ArrayFromVarArgs(nArgs, ap);
va_end(ap);
pthread_mutex_lock(&db->lock);
hash = DbHashKey(args);
file = DbFileName(db, args);
ref = HashMapGet(db->cache, hash);
if (ref)
{
HashMapDelete(db->cache, hash);
JsonFree(ref->json);
StringArrayFree(ref->name);
db->cacheSize -= ref->size;
if (ref->next)
{
ref->next->prev = ref->prev;
}
else
{
db->mostRecent = ref->prev;
}
if (ref->prev)
{
ref->prev->next = ref->next;
}
else
{
db->leastRecent = ref->next;
}
if (!db->leastRecent)
{
db->leastRecent = db->mostRecent;
}
Free(ref);
}
Free(hash);
if (UtilLastModified(file))
{
ret = remove(file) == 0;
}
pthread_mutex_unlock(&db->lock);
ArrayFree(args);
Free(file);
return ret;
}
DbRef *
DbLock(Db * db, size_t nArgs,...)
{
va_list ap;
Array *args;
DbRef *ret;
va_start(ap, nArgs);
args = ArrayFromVarArgs(nArgs, ap);
va_end(ap);
if (!args)
{
return NULL;
}
ret = DbLockFromArr(db, args);
ArrayFree(args);
return ret;
}
int
DbUnlock(Db * db, DbRef * ref)
{
int destroy;
if (!db || !ref)
{
return 0;
}
lseek(ref->fd, 0L, SEEK_SET);
if (ftruncate(ref->fd, 0) < 0)
{
pthread_mutex_unlock(&db->lock);
Log(LOG_ERR, "Failed to truncate file on disk.");
Log(LOG_ERR, "Error on fd %d: %s", ref->fd, strerror(errno));
return 0;
}
JsonEncode(ref->json, ref->stream, JSON_DEFAULT);
StreamClose(ref->stream);
if (db->cache)
{
char *key = DbHashKey(ref->name);
if (HashMapGet(db->cache, key))
{
db->cacheSize -= ref->size;
ref->size = DbComputeSize(ref->json);
db->cacheSize += ref->size;
/* If this ref has grown significantly since we last
* computed its size, it may have filled the cache and
* require some items to be evicted. */
DbCacheEvict(db);
destroy = 0;
}
else
{
destroy = 1;
}
Free(key);
}
else
{
destroy = 1;
}
if (destroy)
{
JsonFree(ref->json);
StringArrayFree(ref->name);
Free(ref);
}
pthread_mutex_unlock(&db->lock);
return 1;
}
int
DbExists(Db * db, size_t nArgs,...)
{
va_list ap;
Array *args;
char *file;
int ret;
va_start(ap, nArgs);
args = ArrayFromVarArgs(nArgs, ap);
va_end(ap);
if (!args)
{
return 0;
}
pthread_mutex_lock(&db->lock);
file = DbFileName(db, args);
ret = UtilLastModified(file);
pthread_mutex_unlock(&db->lock);
Free(file);
ArrayFree(args);
return ret;
}
Array *
DbList(Db * db, size_t nArgs,...)
{
Array *result;
Array *path;
DIR *files;
struct dirent *file;
char *dir;
va_list ap;
if (!db || !nArgs)
{
return NULL;
}
result = ArrayCreate();
if (!result)
{
return NULL;
}
va_start(ap, nArgs);
path = ArrayFromVarArgs(nArgs, ap);
dir = DbDirName(db, path, 0);
pthread_mutex_lock(&db->lock);
files = opendir(dir);
if (!files)
{
ArrayFree(path);
ArrayFree(result);
Free(dir);
pthread_mutex_unlock(&db->lock);
return NULL;
}
while ((file = readdir(files)))
{
size_t namlen = strlen(file->d_name);
if (namlen > 5)
{
int nameOffset = namlen - 5;
if (StrEquals(file->d_name + nameOffset, ".json"))
{
file->d_name[nameOffset] = '\0';
ArrayAdd(result, StrDuplicate(file->d_name));
}
}
}
closedir(files);
ArrayFree(path);
Free(dir);
pthread_mutex_unlock(&db->lock);
return result;
}
void
DbListFree(Array * arr)
{
StringArrayFree(arr);
}
HashMap *
DbJson(DbRef * ref)
{
return ref ? ref->json : NULL;
}
int
DbJsonSet(DbRef * ref, HashMap * json)
{
if (!ref || !json)
{
return 0;
}
JsonFree(ref->json);
ref->json = JsonDuplicate(json);
return 1;
}

401
src/HashMap.c
View File

@ -1,401 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HashMap.h>
#include <Memory.h>
#include <Str.h>
#include <stddef.h>
#include <string.h>
typedef struct HashMapBucket
{
unsigned long hash;
char *key;
void *value;
} HashMapBucket;
struct HashMap
{
size_t count;
size_t capacity;
HashMapBucket **entries;
unsigned long (*hashFunc) (const char *);
float maxLoad;
size_t iterator;
};
static unsigned long
HashMapHashKey(const char *key)
{
unsigned long hash = 2166136261u;
size_t i = 0;
while (key[i])
{
hash ^= (unsigned char) key[i];
hash *= 16777619;
i++;
}
return hash;
}
static int
HashMapGrow(HashMap * map)
{
size_t oldCapacity;
size_t i;
HashMapBucket **newEntries;
if (!map)
{
return 0;
}
oldCapacity = map->capacity;
map->capacity *= 2;
newEntries = Malloc(map->capacity * sizeof(HashMapBucket *));
if (!newEntries)
{
map->capacity /= 2;
return 0;
}
memset(newEntries, 0, map->capacity * sizeof(HashMapBucket *));
for (i = 0; i < oldCapacity; i++)
{
/* If there is a value here, and it isn't a tombstone */
if (map->entries[i] && map->entries[i]->hash)
{
/* Copy it to the new entries array */
size_t index = map->entries[i]->hash % map->capacity;
for (;;)
{
if (newEntries[index])
{
if (!newEntries[index]->hash)
{
Free(newEntries[index]);
newEntries[index] = map->entries[i];
break;
}
}
else
{
newEntries[index] = map->entries[i];
break;
}
index = (index + 1) % map->capacity;
}
}
else
{
/* Either NULL or a tombstone */
Free(map->entries[i]);
}
}
Free(map->entries);
map->entries = newEntries;
return 1;
}
HashMap *
HashMapCreate(void)
{
HashMap *map = Malloc(sizeof(HashMap));
if (!map)
{
return NULL;
}
map->maxLoad = 0.75;
map->count = 0;
map->capacity = 16;
map->iterator = 0;
map->hashFunc = HashMapHashKey;
map->entries = Malloc(map->capacity * sizeof(HashMapBucket *));
if (!map->entries)
{
Free(map);
return NULL;
}
memset(map->entries, 0, map->capacity * sizeof(HashMapBucket *));
return map;
}
void *
HashMapDelete(HashMap * map, const char *key)
{
unsigned long hash;
size_t index;
if (!map || !key)
{
return NULL;
}
hash = map->hashFunc(key);
index = hash % map->capacity;
for (;;)
{
HashMapBucket *bucket = map->entries[index];
if (!bucket)
{
break;
}
if (bucket->hash == hash)
{
bucket->hash = 0;
return bucket->value;
}
index = (index + 1) % map->capacity;
}
return NULL;
}
void
HashMapFree(HashMap * map)
{
if (map)
{
size_t i;
for (i = 0; i < map->capacity; i++)
{
if (map->entries[i])
{
Free(map->entries[i]->key);
Free(map->entries[i]);
}
}
Free(map->entries);
Free(map);
}
}
void *
HashMapGet(HashMap * map, const char *key)
{
unsigned long hash;
size_t index;
if (!map || !key)
{
return NULL;
}
hash = map->hashFunc(key);
index = hash % map->capacity;
for (;;)
{
HashMapBucket *bucket = map->entries[index];
if (!bucket)
{
break;
}
if (bucket->hash == hash)
{
return bucket->value;
}
index = (index + 1) % map->capacity;
}
return NULL;
}
int
HashMapIterateReentrant(HashMap * map, char **key, void **value, size_t * i)
{
if (!map)
{
return 0;
}
if (*i >= map->capacity)
{
*i = 0;
*key = NULL;
*value = NULL;
return 0;
}
while (*i < map->capacity)
{
HashMapBucket *bucket = map->entries[*i];
*i = *i + 1;
if (bucket && bucket->hash)
{
*key = bucket->key;
*value = bucket->value;
return 1;
}
}
*i = 0;
return 0;
}
int
HashMapIterate(HashMap * map, char **key, void **value)
{
if (!map)
{
return 0;
}
else
{
return HashMapIterateReentrant(map, key, value, &map->iterator);
}
}
void
HashMapMaxLoadSet(HashMap * map, float load)
{
if (!map || (load > 1.0 || load <= 0))
{
return;
}
map->maxLoad = load;
}
void
HashMapFunctionSet(HashMap * map, unsigned long (*hashFunc) (const char *))
{
if (!map || !hashFunc)
{
return;
}
map->hashFunc = hashFunc;
}
void *
HashMapSet(HashMap * map, char *key, void *value)
{
unsigned long hash;
size_t index;
if (!map || !key || !value)
{
return NULL;
}
key = StrDuplicate(key);
if (!key)
{
return NULL;
}
if (map->count + 1 > map->capacity * map->maxLoad)
{
HashMapGrow(map);
}
hash = map->hashFunc(key);
index = hash % map->capacity;
for (;;)
{
HashMapBucket *bucket = map->entries[index];
if (!bucket)
{
bucket = Malloc(sizeof(HashMapBucket));
if (!bucket)
{
break;
}
bucket->hash = hash;
bucket->key = key;
bucket->value = value;
map->entries[index] = bucket;
map->count++;
break;
}
if (!bucket->hash)
{
bucket->hash = hash;
Free(bucket->key);
bucket->key = key;
bucket->value = value;
break;
}
if (bucket->hash == hash)
{
void *oldValue = bucket->value;
Free(bucket->key);
bucket->key = key;
bucket->value = value;
return oldValue;
}
index = (index + 1) % map->capacity;
}
return NULL;
}
void
HashMapIterateFree(char *key, void *value)
{
if (key)
{
Free(key);
}
if (value)
{
Free(value);
}
}

664
src/HeaderParser.c
View File

@ -1,664 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HeaderParser.h>
#include <Memory.h>
#include <Str.h>
#include <string.h>
#include <ctype.h>
static int
HeaderConsumeWhitespace(HeaderExpr * expr)
{
int c;
while (1)
{
c = StreamGetc(expr->state.stream);
if (StreamEof(expr->state.stream) || StreamError(expr->state.stream))
{
expr->type = HP_EOF;
expr->data.error.msg = "End of stream reached.";
expr->data.error.lineNo = expr->state.lineNo;
break;
}
if (isspace(c))
{
if (c == '\n')
{
expr->state.lineNo++;
}
}
else
{
break;
}
}
return c;
}
static char *
HeaderConsumeWord(HeaderExpr * expr)
{
char *str = Malloc(16 * sizeof(char));
int len = 16;
int i;
int c;
if (!str)
{
return NULL;
}
c = HeaderConsumeWhitespace(expr);
i = 0;
str[i] = c;
i++;
while (!isspace(c = StreamGetc(expr->state.stream)))
{
if (i >= len)
{
len *= 2;
str = Realloc(str, len * sizeof(char));
}
str[i] = c;
i++;
}
if (i >= len)
{
len++;
str = Realloc(str, len * sizeof(char));
}
str[i] = '\0';
if (c != EOF)
{
StreamUngetc(expr->state.stream, c);
}
return str;
}
static char *
HeaderConsumeAlnum(HeaderExpr * expr)
{
char *str = Malloc(16 * sizeof(char));
int len = 16;
int i;
int c;
if (!str)
{
return NULL;
}
c = HeaderConsumeWhitespace(expr);
i = 0;
str[i] = c;
i++;
while (isalnum(c = StreamGetc(expr->state.stream)))
{
if (i >= len)
{
len *= 2;
str = Realloc(str, len * sizeof(char));
}
str[i] = c;
i++;
}
if (i >= len)
{
len++;
str = Realloc(str, len * sizeof(char));
}
str[i] = '\0';
if (c != EOF)
{
StreamUngetc(expr->state.stream, c);
}
return str;
}
static char *
HeaderConsumeArg(HeaderExpr * expr)
{
char *str = Malloc(16 * sizeof(char));
int len = 16;
int i;
int c;
int block = 0;
if (!str)
{
return NULL;
}
c = HeaderConsumeWhitespace(expr);
i = 0;
str[i] = c;
i++;
while (((c = StreamGetc(expr->state.stream)) != ',' && c != ')') || block > 0)
{
if (i >= len)
{
len *= 2;
str = Realloc(str, len * sizeof(char));
}
str[i] = c;
i++;
if (c == '(')
{
block++;
}
else if (c == ')')
{
block--;
}
else if (c == '\n')
{
expr->state.lineNo++;
}
}
if (i >= len)
{
len++;
str = Realloc(str, len * sizeof(char));
}
str[i] = '\0';
if (c != EOF)
{
StreamUngetc(expr->state.stream, c);
}
return str;
}
void
HeaderParse(Stream * stream, HeaderExpr * expr)
{
int c;
if (!expr)
{
return;
}
if (!stream)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "NULL pointer to stream.";
expr->data.error.lineNo = -1;
return;
}
if (expr->type == HP_DECLARATION && expr->data.declaration.args)
{
size_t i;
for (i = 0; i < ArraySize(expr->data.declaration.args); i++)
{
Free(ArrayGet(expr->data.declaration.args, i));
}
ArrayFree(expr->data.declaration.args);
}
expr->state.stream = stream;
if (!expr->state.lineNo)
{
expr->state.lineNo = 1;
}
c = HeaderConsumeWhitespace(expr);
if (StreamEof(stream) || StreamError(stream))
{
expr->type = HP_EOF;
expr->data.error.msg = "End of stream reached.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
if (c == '/')
{
int i = 0;
c = StreamGetc(expr->state.stream);
if (c != '*')
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Expected comment opening.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
expr->type = HP_COMMENT;
while (1)
{
if (i >= HEADER_EXPR_MAX - 1)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Memory limit exceeded while parsing comment.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
c = StreamGetc(expr->state.stream);
if (StreamEof(expr->state.stream) || StreamError(expr->state.stream))
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Unterminated comment.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
if (c == '*')
{
c = StreamGetc(expr->state.stream);
if (c == '/')
{
expr->data.text[i] = '\0';
break;
}
else
{
expr->data.text[i] = '*';
i++;
expr->data.text[i] = c;
i++;
if (c == '\n')
{
expr->state.lineNo++;
}
}
}
else
{
expr->data.text[i] = c;
i++;
if (c == '\n')
{
expr->state.lineNo++;
}
}
}
}
else if (c == '#')
{
int i = 0;
char *word;
expr->type = HP_PREPROCESSOR_DIRECTIVE;
expr->data.text[i] = '#';
i++;
word = HeaderConsumeWord(expr);
strncpy(expr->data.text + i, word, HEADER_EXPR_MAX - i - 1);
i += strlen(word);
if (StrEquals(word, "include") ||
StrEquals(word, "undef") ||
StrEquals(word, "ifdef") ||
StrEquals(word, "ifndef"))
{
/* Read one more word */
Free(word);
word = HeaderConsumeWord(expr);
if (i + strlen(word) + 1 >= HEADER_EXPR_MAX)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Memory limit reached parsing preprocessor directive.";
expr->data.error.lineNo = expr->state.lineNo;
}
else
{
strncpy(expr->data.text + i + 1, word, HEADER_EXPR_MAX - i - 1);
expr->data.text[i] = ' ';
}
Free(word);
}
else if (StrEquals(word, "define") ||
StrEquals(word, "if") ||
StrEquals(word, "elif") ||
StrEquals(word, "error"))
{
int pC = 0;
Free(word);
expr->data.text[i] = ' ';
i++;
while (1)
{
if (i >= HEADER_EXPR_MAX - 1)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Memory limit reached parsing preprocessor directive.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
c = StreamGetc(expr->state.stream);
if (StreamEof(expr->state.stream) || StreamError(expr->state.stream))
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Unterminated preprocessor directive.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
if (c == '\n')
{
expr->state.lineNo++;
if (pC != '\\')
{
expr->data.text[i] = '\0';
break;
}
}
expr->data.text[i] = c;
i++;
pC = c;
}
}
else if (StrEquals(word, "else") ||
StrEquals(word, "endif"))
{
/* Read no more words, that's the whole directive */
}
else
{
Free(word);
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Unknown preprocessor directive.";
expr->data.error.lineNo = expr->state.lineNo;
}
}
else
{
char *word;
StreamUngetc(expr->state.stream, c);
word = HeaderConsumeWord(expr);
if (StrEquals(word, "typedef"))
{
int block = 0;
int i = 0;
expr->type = HP_TYPEDEF;
strncpy(expr->data.text, word, HEADER_EXPR_MAX - 1);
i += strlen(word);
expr->data.text[i] = ' ';
i++;
while (1)
{
if (i >= HEADER_EXPR_MAX - 1)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Memory limit exceeded while parsing typedef.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
c = StreamGetc(expr->state.stream);
if (StreamEof(expr->state.stream) || StreamError(expr->state.stream))
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Unterminated typedef.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
expr->data.text[i] = c;
i++;
if (c == '{')
{
block++;
}
else if (c == '}')
{
block--;
}
else if (c == '\n')
{
expr->state.lineNo++;
}
if (block <= 0 && c == ';')
{
expr->data.text[i] = '\0';
break;
}
}
}
else if (StrEquals(word, "extern"))
{
int wordLimit = sizeof(expr->data.declaration.returnType) - 8;
int wordLen;
Free(word);
word = HeaderConsumeWord(expr);
wordLen = strlen(word);
if (wordLen > wordLimit)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Return of declaration exceeds length limit.";
expr->data.error.lineNo = expr->state.lineNo;
}
else
{
int i = wordLen;
expr->type = HP_GLOBAL;
strncpy(expr->data.global.type, word, wordLimit);
if (StrEquals(word, "struct") ||
StrEquals(word, "enum") ||
StrEquals(word, "const") ||
StrEquals(word, "unsigned"))
{
Free(word);
word = HeaderConsumeWord(expr);
wordLen = strlen(word);
expr->data.global.type[i] = ' ';
strncpy(expr->data.global.type + i + 1, word, wordLen + 1);
i += wordLen + 1;
}
Free(word);
c = HeaderConsumeWhitespace(expr);
if (c == '*')
{
expr->data.global.type[i] = ' ';
i++;
expr->data.global.type[i] = '*';
i++;
while ((c = HeaderConsumeWhitespace(expr)) == '*')
{
expr->data.global.type[i] = c;
i++;
}
}
StreamUngetc(expr->state.stream, c);
word = HeaderConsumeAlnum(expr);
wordLen = strlen(word);
wordLimit = sizeof(expr->data.declaration.name) - 1;
if (wordLen > wordLimit)
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Function name too long.";
expr->data.error.lineNo = expr->state.lineNo;
}
else
{
strncpy(expr->data.global.name, word, wordLimit);
Free(word);
word = NULL;
c = HeaderConsumeWhitespace(expr);
if (c == ';')
{
/* That's the end of the global. */
}
else if (c == '[')
{
/* Looks like we have an array. Slurp all the
* dimensions */
int i = wordLen;
expr->data.global.name[i] = '[';
i++;
while (1)
{
if (i >= HEADER_EXPR_MAX - wordLen)
{
expr->type = HP_PARSE_ERROR;
expr->data.error.msg = "Memory limit exceeded while parsing global array.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
c = StreamGetc(expr->state.stream);
if (StreamEof(expr->state.stream) || StreamError(expr->state.stream))
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Unterminated global array.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
if (c == ';')
{
expr->data.global.name[i] = '\0';
break;
}
else
{
expr->data.global.name[i] = c;
i++;
}
}
}
else if (c == '(')
{
expr->type = HP_DECLARATION;
expr->data.declaration.args = ArrayCreate();
do
{
word = HeaderConsumeArg(expr);
ArrayAdd(expr->data.declaration.args, word);
word = NULL;
}
while ((!StreamEof(expr->state.stream)) && ((c = HeaderConsumeWhitespace(expr)) != ')'));
if (StreamEof(expr->state.stream))
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "End of file reached before ')'.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
c = HeaderConsumeWhitespace(expr);
if (c != ';')
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Expected ';'.";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
}
else
{
expr->type = HP_SYNTAX_ERROR;
expr->data.error.msg = "Expected ';', '[', or '('";
expr->data.error.lineNo = expr->state.lineNo;
return;
}
}
}
}
else
{
/* Cope with preprocessor macro expansions at the top
* level. */
expr->type = HP_UNKNOWN;
strncpy(expr->data.text, word, HEADER_EXPR_MAX);
}
Free(word);
}
}

642
src/Http.c
View File

@ -1,642 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Http.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <Memory.h>
#include <HashMap.h>
#include <Util.h>
#include <Str.h>
#ifndef TELODENDRIA_STRING_CHUNK
#define TELODENDRIA_STRING_CHUNK 64
#endif
const char *
HttpRequestMethodToString(const HttpRequestMethod method)
{
switch (method)
{
case HTTP_GET:
return "GET";
case HTTP_HEAD:
return "HEAD";
case HTTP_POST:
return "POST";
case HTTP_PUT:
return "PUT";
case HTTP_DELETE:
return "DELETE";
case HTTP_CONNECT:
return "CONNECT";
case HTTP_OPTIONS:
return "OPTIONS";
case HTTP_TRACE:
return "TRACE";
case HTTP_PATCH:
return "PATCH";
default:
return NULL;
}
}
HttpRequestMethod
HttpRequestMethodFromString(const char *str)
{
if (StrEquals(str, "GET"))
{
return HTTP_GET;
}
if (StrEquals(str, "HEAD"))
{
return HTTP_HEAD;
}
if (StrEquals(str, "POST"))
{
return HTTP_POST;
}
if (StrEquals(str, "PUT"))
{
return HTTP_PUT;
}
if (StrEquals(str, "DELETE"))
{
return HTTP_DELETE;
}
if (StrEquals(str, "CONNECT"))
{
return HTTP_CONNECT;
}
if (StrEquals(str, "OPTIONS"))
{
return HTTP_OPTIONS;
}
if (StrEquals(str, "TRACE"))
{
return HTTP_TRACE;
}
if (StrEquals(str, "PATCH"))
{
return HTTP_PATCH;
}
return HTTP_METHOD_UNKNOWN;
}
const char *
HttpStatusToString(const HttpStatus status)
{
switch (status)
{
case HTTP_CONTINUE:
return "Continue";
case HTTP_SWITCHING_PROTOCOLS:
return "Switching Protocols";
case HTTP_EARLY_HINTS:
return "Early Hints";
case HTTP_OK:
return "Ok";
case HTTP_CREATED:
return "Created";
case HTTP_ACCEPTED:
return "Accepted";
case HTTP_NON_AUTHORITATIVE_INFORMATION:
return "Non-Authoritative Information";
case HTTP_NO_CONTENT:
return "No Content";
case HTTP_RESET_CONTENT:
return "Reset Content";
case HTTP_PARTIAL_CONTENT:
return "Partial Content";
case HTTP_MULTIPLE_CHOICES:
return "Multiple Choices";
case HTTP_MOVED_PERMANENTLY:
return "Moved Permanently";
case HTTP_FOUND:
return "Found";
case HTTP_SEE_OTHER:
return "See Other";
case HTTP_NOT_MODIFIED:
return "Not Modified";
case HTTP_TEMPORARY_REDIRECT:
return "Temporary Redirect";
case HTTP_PERMANENT_REDIRECT:
return "Permanent Redirect";
case HTTP_BAD_REQUEST:
return "Bad Request";
case HTTP_UNAUTHORIZED:
return "Unauthorized";
case HTTP_FORBIDDEN:
return "Forbidden";
case HTTP_NOT_FOUND:
return "Not Found";
case HTTP_METHOD_NOT_ALLOWED:
return "Method Not Allowed";
case HTTP_NOT_ACCEPTABLE:
return "Not Acceptable";
case HTTP_PROXY_AUTH_REQUIRED:
return "Proxy Authentication Required";
case HTTP_REQUEST_TIMEOUT:
return "Request Timeout";
case HTTP_CONFLICT:
return "Conflict";
case HTTP_GONE:
return "Gone";
case HTTP_LENGTH_REQUIRED:
return "Length Required";
case HTTP_PRECONDITION_FAILED:
return "Precondition Failed";
case HTTP_PAYLOAD_TOO_LARGE:
return "Payload Too Large";
case HTTP_URI_TOO_LONG:
return "URI Too Long";
case HTTP_UNSUPPORTED_MEDIA_TYPE:
return "Unsupported Media Type";
case HTTP_RANGE_NOT_SATISFIABLE:
return "Range Not Satisfiable";
case HTTP_EXPECTATION_FAILED:
return "Expectation Failed";
case HTTP_TEAPOT:
return "I'm a Teapot";
case HTTP_UPGRADE_REQUIRED:
return "Upgrade Required";
case HTTP_PRECONDITION_REQUIRED:
return "Precondition Required";
case HTTP_TOO_MANY_REQUESTS:
return "Too Many Requests";
case HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE:
return "Request Header Fields Too Large";
case HTTP_UNAVAILABLE_FOR_LEGAL_REASONS:
return "Unavailable For Legal Reasons";
case HTTP_INTERNAL_SERVER_ERROR:
return "Internal Server Error";
case HTTP_NOT_IMPLEMENTED:
return "Not Implemented";
case HTTP_BAD_GATEWAY:
return "Bad Gateway";
case HTTP_SERVICE_UNAVAILABLE:
return "Service Unavailable";
case HTTP_GATEWAY_TIMEOUT:
return "Gateway Timeout";
case HTTP_VERSION_NOT_SUPPORTED:
return "Version Not Supported";
case HTTP_VARIANT_ALSO_NEGOTIATES:
return "Variant Also Negotiates";
case HTTP_NOT_EXTENDED:
return "Not Extended";
case HTTP_NETWORK_AUTH_REQUIRED:
return "Network Authentication Required";
default:
return NULL;
}
}
char *
HttpUrlEncode(char *str)
{
size_t size;
size_t len;
char *encoded;
if (!str)
{
return NULL;
}
size = TELODENDRIA_STRING_CHUNK;
len = 0;
encoded = Malloc(size);
if (!encoded)
{
return NULL;
}
while (*str)
{
char c = *str;
if (len >= size - 4)
{
char *tmp;
size += TELODENDRIA_STRING_CHUNK;
tmp = Realloc(encoded, size);
if (!tmp)
{
Free(encoded);
return NULL;
}
encoded = tmp;
}
/* Control characters and extended characters */
if (c <= 0x1F || c >= 0x7F)
{
goto percentEncode;
}
/* Reserved and unsafe characters */
switch (c)
{
case '$':
case '&':
case '+':
case ',':
case '/':
case ':':
case ';':
case '=':
case '?':
case '@':
case ' ':
case '"':
case '<':
case '>':
case '#':
case '%':
case '{':
case '}':
case '|':
case '\\':
case '^':
case '~':
case '[':
case ']':
case '`':
goto percentEncode;
break;
default:
encoded[len] = c;
len++;
str++;
continue;
}
percentEncode:
encoded[len] = '%';
len++;
snprintf(encoded + len, 3, "%2X", c);
len += 2;
str++;
}
encoded[len] = '\0';
return encoded;
}
char *
HttpUrlDecode(char *str)
{
size_t i;
size_t inputLen;
char *decoded;
if (!str)
{
return NULL;
}
i = 0;
inputLen = strlen(str);
decoded = Malloc(inputLen + 1);
if (!decoded)
{
return NULL;
}
while (*str)
{
char c = *str;
if (c == '%')
{
unsigned int d;
str++;
if (sscanf(str, "%2X", &d) != 1)
{
/* Decoding error */
Free(decoded);
return NULL;
}
if (!d)
{
/* Null character given, don't put that in the string. */
continue;
}
c = (char) d;
str++;
}
decoded[i] = c;
i++;
str++;
}
decoded[i] = '\0';
return decoded;
}
HashMap *
HttpParamDecode(char *in)
{
HashMap *params;
if (!in)
{
return NULL;
}
params = HashMapCreate();
if (!params)
{
return NULL;
}
while (*in)
{
char *buf;
size_t allocated;
size_t len;
char *decKey;
char *decVal;
/* Read in key */
allocated = TELODENDRIA_STRING_CHUNK;
buf = Malloc(allocated);
len = 0;
while (*in && *in != '=')
{
if (len >= allocated - 1)
{
allocated += TELODENDRIA_STRING_CHUNK;
buf = Realloc(buf, allocated);
}
buf[len] = *in;
len++;
in++;
}
buf[len] = '\0';
/* Sanity check */
if (*in != '=')
{
/* Malformed param */
Free(buf);
HashMapFree(params);
return NULL;
}
in++;
/* Decode key */
decKey = HttpUrlDecode(buf);
Free(buf);
if (!decKey)
{
/* Decoding error */
HashMapFree(params);
return NULL;
}
/* Read in value */
allocated = TELODENDRIA_STRING_CHUNK;
buf = Malloc(allocated);
len = 0;
while (*in && *in != '&')
{
if (len >= allocated - 1)
{
allocated += TELODENDRIA_STRING_CHUNK;
buf = Realloc(buf, allocated);
}
buf[len] = *in;
len++;
in++;
}
buf[len] = '\0';
/* Decode value */
decVal = HttpUrlDecode(buf);
Free(buf);
if (!decVal)
{
/* Decoding error */
HashMapFree(params);
return NULL;
}
buf = HashMapSet(params, decKey, decVal);
if (buf)
{
Free(buf);
}
Free(decKey);
if (*in == '&')
{
in++;
continue;
}
else
{
break;
}
}
return params;
}
char *
HttpParamEncode(HashMap * params)
{
char *key;
char *val;
char *out = NULL;
if (!params || !out)
{
return NULL;
}
while (HashMapIterate(params, &key, (void *) &val))
{
char *encKey;
char *encVal;
encKey = HttpUrlEncode(key);
encVal = HttpUrlEncode(val);
if (!encKey || !encVal)
{
/* Memory error */
Free(encKey);
Free(encVal);
return NULL;
}
/* TODO */
Free(encKey);
Free(encVal);
}
return out;
}
HashMap *
HttpParseHeaders(Stream * fp)
{
HashMap *headers;
char *line;
ssize_t lineLen;
size_t lineSize;
char *headerKey;
char *headerValue;
if (!fp)
{
return NULL;
}
headers = HashMapCreate();
if (!headers)
{
return NULL;
}
line = NULL;
lineLen = 0;
while ((lineLen = UtilGetLine(&line, &lineSize, fp)) != -1)
{
char *headerPtr;
ssize_t i;
size_t len;
if (StrEquals(line, "\r\n") || StrEquals(line, "\n"))
{
break;
}
for (i = 0; i < lineLen; i++)
{
if (line[i] == ':')
{
line[i] = '\0';
break;
}
line[i] = tolower((unsigned char) line[i]);
}
len = i + 1;
headerKey = Malloc(len * sizeof(char));
if (!headerKey)
{
goto error;
}
strncpy(headerKey, line, len);
headerPtr = line + i + 1;
while (isspace((unsigned char) *headerPtr))
{
headerPtr++;
}
for (i = lineLen - 1; i > (line + lineLen) - headerPtr; i--)
{
if (!isspace((unsigned char) line[i]))
{
break;
}
line[i] = '\0';
}
len = strlen(headerPtr) + 1;
headerValue = Malloc(len * sizeof(char));
if (!headerValue)
{
Free(headerKey);
goto error;
}
strncpy(headerValue, headerPtr, len);
HashMapSet(headers, headerKey, headerValue);
Free(headerKey);
}
Free(line);
return headers;
error:
Free(line);
while (HashMapIterate(headers, &headerKey, (void **) &headerValue))
{
Free(headerValue);
}
HashMapFree(headers);
return NULL;
}

298
src/HttpClient.c
View File

@ -1,298 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HttpClient.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <Http.h>
#include <Memory.h>
#include <Util.h>
#include <Tls.h>
struct HttpClientContext
{
HashMap *responseHeaders;
Stream *stream;
};
HttpClientContext *
HttpRequest(HttpRequestMethod method, int flags, unsigned short port, char *host, char *path)
{
HttpClientContext *context;
int sd = -1;
struct addrinfo hints, *res, *res0;
int error;
char serv[8];
if (!method || !host || !path)
{
return NULL;
}
#ifndef TLS_IMPL
if (flags & HTTP_FLAG_TLS)
{
return NULL;
}
#endif
if (!port)
{
if (flags & HTTP_FLAG_TLS)
{
strcpy(serv, "https");
}
else
{
strcpy(serv, "www");
}
}
else
{
snprintf(serv, sizeof(serv), "%hu", port);
}
context = Malloc(sizeof(HttpClientContext));
if (!context)
{
return NULL;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
error = getaddrinfo(host, serv, &hints, &res0);
if (error)
{
Free(context);
return NULL;
}
for (res = res0; res; res = res->ai_next)
{
sd = socket(res->ai_family, res->ai_socktype,
res->ai_protocol);
if (sd < 0)
{
continue;
}
if (connect(sd, res->ai_addr, res->ai_addrlen) < 0)
{
close(sd);
sd = -1;
continue;
}
break;
}
if (sd < 0)
{
Free(context);
return NULL;
}
freeaddrinfo(res0);
#ifdef TLS_IMPL
if (flags & HTTP_FLAG_TLS)
{
context->stream = TlsClientStream(sd, host);
}
else
{
context->stream = StreamFd(sd);
}
#else
context->stream = StreamFd(sd);
#endif
if (!context->stream)
{
Free(context);
close(sd);
return NULL;
}
StreamPrintf(context->stream, "%s %s HTTP/1.0\r\n",
HttpRequestMethodToString(method), path);
HttpRequestHeader(context, "Connection", "close");
HttpRequestHeader(context, "User-Agent", "Telodendria/" TELODENDRIA_VERSION);
HttpRequestHeader(context, "Host", host);
return context;
}
void
HttpRequestHeader(HttpClientContext * context, char *key, char *val)
{
if (!context || !key || !val)
{
return;
}
StreamPrintf(context->stream, "%s: %s\r\n", key, val);
}
void
HttpRequestSendHeaders(HttpClientContext * context)
{
if (!context)
{
return;
}
StreamPuts(context->stream, "\r\n");
StreamFlush(context->stream);
}
HttpStatus
HttpRequestSend(HttpClientContext * context)
{
HttpStatus status;
char *line = NULL;
ssize_t lineLen;
size_t lineSize = 0;
char *tmp;
if (!context)
{
return 0;
}
StreamFlush(context->stream);
lineLen = UtilGetLine(&line, &lineSize, context->stream);
while (lineLen == -1 && errno == EAGAIN)
{
StreamClearError(context->stream);
lineLen = UtilGetLine(&line, &lineSize, context->stream);
}
if (lineLen == -1)
{
return 0;
}
/* Line must contain at least "HTTP/x.x xxx" */
if (lineLen < 12)
{
return 0;
}
if (!(strncmp(line, "HTTP/1.0", 8) == 0 ||
strncmp(line, "HTTP/1.1", 8) == 0))
{
return 0;
}
tmp = line + 9;
while (isspace((unsigned char) *tmp) && *tmp != '\0')
{
tmp++;
}
if (!*tmp)
{
return 0;
}
status = atoi(tmp);
if (!status)
{
return 0;
}
context->responseHeaders = HttpParseHeaders(context->stream);
if (!context->responseHeaders)
{
return 0;
}
return status;
}
HashMap *
HttpResponseHeaders(HttpClientContext * context)
{
if (!context)
{
return NULL;
}
return context->responseHeaders;
}
Stream *
HttpClientStream(HttpClientContext * context)
{
if (!context)
{
return NULL;
}
return context->stream;
}
void
HttpClientContextFree(HttpClientContext * context)
{
char *key;
void *val;
if (!context)
{
return;
}
while (HashMapIterate(context->responseHeaders, &key, &val))
{
Free(val);
}
HashMapFree(context->responseHeaders);
StreamClose(context->stream);
Free(context);
}

296
src/HttpRouter.c
View File

@ -1,296 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HttpRouter.h>
#include <Memory.h>
#include <HashMap.h>
#include <Str.h>
#include <regex.h>
#include <string.h>
#define REG_FLAGS (REG_EXTENDED)
#define REG_MAX_SUB 8
typedef struct RouteNode
{
HttpRouteFunc *exec;
HashMap *children;
regex_t regex;
} RouteNode;
struct HttpRouter
{
RouteNode *root;
};
static RouteNode *
RouteNodeCreate(char *regex, HttpRouteFunc * exec)
{
RouteNode *node;
if (!regex)
{
return NULL;
}
node = Malloc(sizeof(RouteNode));
if (!node)
{
return NULL;
}
node->children = HashMapCreate();
if (!node->children)
{
Free(node);
return NULL;
}
/* Force the regex to match the entire path part exactly. */
regex = StrConcat(3, "^", regex, "$");
if (!regex)
{
Free(node);
return NULL;
}
if (regcomp(&node->regex, regex, REG_FLAGS) != 0)
{
HashMapFree(node->children);
Free(node);
Free(regex);
return NULL;
}
node->exec = exec;
Free(regex);
return node;
}
static void
RouteNodeFree(RouteNode * node)
{
char *key;
RouteNode *val;
if (!node)
{
return;
}
while (HashMapIterate(node->children, &key, (void **) &val))
{
RouteNodeFree(val);
}
HashMapFree(node->children);
regfree(&node->regex);
Free(node);
}
HttpRouter *
HttpRouterCreate(void)
{
HttpRouter *router = Malloc(sizeof(HttpRouter));
if (!router)
{
return NULL;
}
router->root = RouteNodeCreate("/", NULL);
return router;
}
void
HttpRouterFree(HttpRouter * router)
{
if (!router)
{
return;
}
RouteNodeFree(router->root);
Free(router);
}
int
HttpRouterAdd(HttpRouter * router, char *regPath, HttpRouteFunc * exec)
{
RouteNode *node;
char *pathPart;
char *tmp;
if (!router || !regPath || !exec)
{
return 0;
}
if (StrEquals(regPath, "/"))
{
router->root->exec = exec;
return 1;
}
regPath = StrDuplicate(regPath);
if (!regPath)
{
return 0;
}
tmp = regPath;
node = router->root;
while ((pathPart = strtok_r(tmp, "/", &tmp)))
{
RouteNode *tNode = HashMapGet(node->children, pathPart);
if (!tNode)
{
tNode = RouteNodeCreate(pathPart, NULL);
RouteNodeFree(HashMapSet(node->children, pathPart, tNode));
}
node = tNode;
}
node->exec = exec;
Free(regPath);
return 1;
}
int
HttpRouterRoute(HttpRouter * router, char *path, void *args, void **ret)
{
RouteNode *node;
char *pathPart;
char *tmp;
HttpRouteFunc *exec = NULL;
Array *matches;
size_t i;
int retval;
if (!router || !path)
{
return 0;
}
matches = ArrayCreate();
if (!matches)
{
return 0;
}
node = router->root;
if (StrEquals(path, "/"))
{
exec = node->exec;
}
else
{
path = StrDuplicate(path);
tmp = path;
while ((pathPart = strtok_r(tmp, "/", &tmp)))
{
char *key;
RouteNode *val = NULL;
regmatch_t pmatch[REG_MAX_SUB];
i = 0;
while (HashMapIterateReentrant(node->children, &key, (void **) &val, &i))
{
if (regexec(&val->regex, pathPart, REG_MAX_SUB, pmatch, 0) == 0)
{
break;
}
val = NULL;
}
if (!val)
{
exec = NULL;
break;
}
node = val;
exec = node->exec;
/* If we want to pass an arg, the match must be in parens */
if (val->regex.re_nsub)
{
/* pmatch[0] is the whole string, not the first
* subexpression */
for (i = 1; i < REG_MAX_SUB; i++)
{
if (pmatch[i].rm_so == -1)
{
break;
}
ArrayAdd(matches, StrSubstr(pathPart, pmatch[i].rm_so, pmatch[i].rm_eo));
}
}
}
Free(path);
}
if (!exec)
{
retval = 0;
goto finish;
}
if (ret)
{
*ret = exec(matches, args);
}
else
{
exec(matches, args);
}
retval = 1;
finish:
for (i = 0; i < ArraySize(matches); i++)
{
Free(ArrayGet(matches, i));
}
ArrayFree(matches);
return retval;
}

753
src/HttpServer.c
View File

@ -1,753 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HttpServer.h>
#include <Memory.h>
#include <Queue.h>
#include <Array.h>
#include <Util.h>
#include <Tls.h>
#include <Log.h>
#include <Str.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <poll.h>
#include <string.h>
#include <ctype.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <errno.h>
static const char ENABLE = 1;
struct HttpServer
{
HttpServerConfig config;
int sd;
pthread_t socketThread;
volatile unsigned int stop:1;
volatile unsigned int isRunning:1;
Queue *connQueue;
pthread_mutex_t connQueueMutex;
Array *threadPool;
};
struct HttpServerContext
{
HashMap *requestHeaders;
HttpRequestMethod requestMethod;
char *requestPath;
HashMap *requestParams;
HashMap *responseHeaders;
HttpStatus responseStatus;
Stream *stream;
};
typedef struct HttpServerWorkerThreadArgs
{
HttpServer *server;
int id;
pthread_t thread;
} HttpServerWorkerThreadArgs;
static HttpServerContext *
HttpServerContextCreate(HttpRequestMethod requestMethod,
char *requestPath, HashMap * requestParams, Stream * stream)
{
HttpServerContext *c;
c = Malloc(sizeof(HttpServerContext));
if (!c)
{
return NULL;
}
c->responseHeaders = HashMapCreate();
if (!c->responseHeaders)
{
Free(c->requestHeaders);
Free(c);
return NULL;
}
c->requestMethod = requestMethod;
c->requestPath = requestPath;
c->requestParams = requestParams;
c->stream = stream;
c->responseStatus = HTTP_OK;
return c;
}
static void
HttpServerContextFree(HttpServerContext * c)
{
char *key;
void *val;
if (!c)
{
return;
}
while (HashMapIterate(c->requestHeaders, &key, &val))
{
Free(val);
}
HashMapFree(c->requestHeaders);
while (HashMapIterate(c->responseHeaders, &key, &val))
{
/*
* These are generated by code. As such, they may be either
* on the heap, or on the stack, depending on how they were
* added.
*
* Basically, if the memory API knows about a pointer, then
* it can be freed. If it doesn't know about a pointer, skip
* freeing it because it's probably a stack pointer.
*/
if (MemoryInfoGet(val))
{
Free(val);
}
}
HashMapFree(c->responseHeaders);
while (HashMapIterate(c->requestParams, &key, &val))
{
Free(val);
}
HashMapFree(c->requestParams);
Free(c->requestPath);
StreamClose(c->stream);
Free(c);
}
HashMap *
HttpRequestHeaders(HttpServerContext * c)
{
if (!c)
{
return NULL;
}
return c->requestHeaders;
}
HttpRequestMethod
HttpRequestMethodGet(HttpServerContext * c)
{
if (!c)
{
return HTTP_METHOD_UNKNOWN;
}
return c->requestMethod;
}
char *
HttpRequestPath(HttpServerContext * c)
{
if (!c)
{
return NULL;
}
return c->requestPath;
}
HashMap *
HttpRequestParams(HttpServerContext * c)
{
if (!c)
{
return NULL;
}
return c->requestParams;
}
char *
HttpResponseHeader(HttpServerContext * c, char *key, char *val)
{
if (!c)
{
return NULL;
}
return HashMapSet(c->responseHeaders, key, val);
}
void
HttpResponseStatus(HttpServerContext * c, HttpStatus status)
{
if (!c)
{
return;
}
c->responseStatus = status;
}
HttpStatus
HttpResponseStatusGet(HttpServerContext * c)
{
if (!c)
{
return HTTP_STATUS_UNKNOWN;
}
return c->responseStatus;
}
Stream *
HttpServerStream(HttpServerContext * c)
{
if (!c)
{
return NULL;
}
return c->stream;
}
void
HttpSendHeaders(HttpServerContext * c)
{
Stream *fp = c->stream;
char *key;
char *val;
StreamPrintf(fp, "HTTP/1.0 %d %s\n", c->responseStatus, HttpStatusToString(c->responseStatus));
while (HashMapIterate(c->responseHeaders, &key, (void **) &val))
{
StreamPrintf(fp, "%s: %s\n", key, val);
}
StreamPuts(fp, "\n");
}
static Stream *
DequeueConnection(HttpServer * server)
{
Stream *fp;
if (!server)
{
return NULL;
}
pthread_mutex_lock(&server->connQueueMutex);
fp = QueuePop(server->connQueue);
pthread_mutex_unlock(&server->connQueueMutex);
return fp;
}
HttpServer *
HttpServerCreate(HttpServerConfig * config)
{
HttpServer *server;
struct sockaddr_in sa;
if (!config)
{
return NULL;
}
if (!config->handler)
{
return NULL;
}
#ifndef TLS_IMPL
if (config->flags & HTTP_FLAG_TLS)
{
return NULL;
}
#endif
server = Malloc(sizeof(HttpServer));
if (!server)
{
goto error;
}
memset(server, 0, sizeof(HttpServer));
server->config = *config;
server->config.tlsCert = StrDuplicate(config->tlsCert);
server->config.tlsKey = StrDuplicate(config->tlsKey);
server->threadPool = ArrayCreate();
if (!server->threadPool)
{
goto error;
}
server->connQueue = QueueCreate(config->maxConnections);
if (!server->connQueue)
{
goto error;
}
if (pthread_mutex_init(&server->connQueueMutex, NULL) != 0)
{
goto error;
}
server->sd = socket(AF_INET, SOCK_STREAM, 0);
if (server->sd < 0)
{
goto error;
}
if (fcntl(server->sd, F_SETFL, O_NONBLOCK) == -1)
{
goto error;
}
if (setsockopt(server->sd, SOL_SOCKET, SO_REUSEADDR, &ENABLE, sizeof(int)) < 0)
{
goto error;
}
#ifdef SO_REUSEPORT
if (setsockopt(server->sd, SOL_SOCKET, SO_REUSEPORT, &ENABLE, sizeof(int)) < 0)
{
goto error;
}
#endif
memset(&sa, 0, sizeof(struct sockaddr_in));
sa.sin_family = AF_INET;
sa.sin_port = htons(config->port);
sa.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(server->sd, (struct sockaddr *) & sa, sizeof(sa)) < 0)
{
goto error;
}
if (listen(server->sd, config->maxConnections) < 0)
{
goto error;
}
server->stop = 0;
server->isRunning = 0;
return server;
error:
if (server)
{
if (server->connQueue)
{
QueueFree(server->connQueue);
}
pthread_mutex_destroy(&server->connQueueMutex);
if (server->threadPool)
{
ArrayFree(server->threadPool);
}
if (server->sd)
{
close(server->sd);
}
Free(server);
}
return NULL;
}
HttpServerConfig *
HttpServerConfigGet(HttpServer * server)
{
if (!server)
{
return NULL;
}
return &server->config;
}
void
HttpServerFree(HttpServer * server)
{
if (!server)
{
return;
}
close(server->sd);
QueueFree(server->connQueue);
pthread_mutex_destroy(&server->connQueueMutex);
ArrayFree(server->threadPool);
Free(server->config.tlsCert);
Free(server->config.tlsKey);
Free(server);
}
static void *
HttpServerWorkerThread(void *args)
{
HttpServerWorkerThreadArgs *wArgs = (HttpServerWorkerThreadArgs *) args;
HttpServer *server = wArgs->server;
while (!server->stop)
{
Stream *fp;
HttpServerContext *context;
char *line = NULL;
size_t lineSize = 0;
ssize_t lineLen = 0;
char *requestMethodPtr;
char *pathPtr;
char *requestPath;
char *requestProtocol;
HashMap *requestParams;
ssize_t requestPathLen;
ssize_t i = 0;
HttpRequestMethod requestMethod;
long firstRead;
fp = DequeueConnection(server);
if (!fp)
{
/* Block for 1 millisecond before continuing so we don't
* murder the CPU if the queue is empty. */
UtilSleepMillis(1);
continue;
}
/* Get the first line of the request.
*
* Every once in a while, we're too fast for the client. When this
* happens, UtilGetLine() sets errno to EAGAIN. If we get
* EAGAIN, then clear the error on the stream and try again
* after a few ms. This is typically more than enough time for
* the client to send data. */
firstRead = UtilServerTs();
while ((lineLen = UtilGetLine(&line, &lineSize, fp)) == -1
&& errno == EAGAIN)
{
StreamClearError(fp);
/* If the server is stopped, or it's been a while, just
* give up so we aren't wasting a thread on this client. */
if (server->stop || (UtilServerTs() - firstRead) > 1000 * 30)
{
goto finish;
}
UtilSleepMillis(5);
}
if (lineLen == -1)
{
goto bad_request;
}
requestMethodPtr = line;
for (i = 0; i < lineLen; i++)
{
if (line[i] == ' ')
{
line[i] = '\0';
break;
}
}
if (i == lineLen)
{
goto bad_request;
}
requestMethod = HttpRequestMethodFromString(requestMethodPtr);
if (requestMethod == HTTP_METHOD_UNKNOWN)
{
goto bad_request;
}
pathPtr = line + i + 1;
for (i = 0; i < (line + lineLen) - pathPtr; i++)
{
if (pathPtr[i] == ' ')
{
pathPtr[i] = '\0';
break;
}
}
requestPathLen = i;
requestPath = Malloc(((requestPathLen + 1) * sizeof(char)));
strncpy(requestPath, pathPtr, requestPathLen + 1);
requestProtocol = &pathPtr[i + 1];
line[lineLen - 2] = '\0'; /* Get rid of \r and \n */
if (!StrEquals(requestProtocol, "HTTP/1.1") && !StrEquals(requestProtocol, "HTTP/1.0"))
{
Free(requestPath);
goto bad_request;
}
/* Find request params */
for (i = 0; i < requestPathLen; i++)
{
if (requestPath[i] == '?')
{
break;
}
}
requestPath[i] = '\0';
requestParams = (i == requestPathLen) ? NULL : HttpParamDecode(requestPath + i + 1);
context = HttpServerContextCreate(requestMethod, requestPath, requestParams, fp);
if (!context)
{
Free(requestPath);
goto internal_error;
}
context->requestHeaders = HttpParseHeaders(fp);
if (!context->requestHeaders)
{
goto internal_error;
}
server->config.handler(context, server->config.handlerArgs);
HttpServerContextFree(context);
fp = NULL; /* The above call will close this
* Stream */
goto finish;
internal_error:
StreamPuts(fp, "HTTP/1.0 500 Internal Server Error\n");
StreamPuts(fp, "Connection: close\n");
goto finish;
bad_request:
StreamPuts(fp, "HTTP/1.0 400 Bad Request\n");
StreamPuts(fp, "Connection: close\n");
goto finish;
finish:
Free(line);
if (fp)
{
StreamClose(fp);
}
}
return NULL;
}
static void *
HttpServerEventThread(void *args)
{
HttpServer *server = (HttpServer *) args;
struct pollfd pollFds[1];
Stream *fp;
size_t i;
server->isRunning = 1;
server->stop = 0;
pollFds[0].fd = server->sd;
pollFds[0].events = POLLIN;
for (i = 0; i < server->config.threads; i++)
{
HttpServerWorkerThreadArgs *workerThread = Malloc(sizeof(HttpServerWorkerThreadArgs));
if (!workerThread)
{
/* TODO: Make the event thread return an error to the main
* thread */
return NULL;
}
workerThread->server = server;
workerThread->id = i;
if (pthread_create(&workerThread->thread, NULL, HttpServerWorkerThread, workerThread) != 0)
{
/* TODO: Make the event thread return an error to the main
* thread */
return NULL;
}
ArrayAdd(server->threadPool, workerThread);
}
while (!server->stop)
{
struct sockaddr_storage addr;
socklen_t addrLen = sizeof(addr);
int connFd;
int pollResult;
pollResult = poll(pollFds, 1, 500);
if (pollResult < 0)
{
/* The poll either timed out, or was interrupted. */
continue;
}
pthread_mutex_lock(&server->connQueueMutex);
/* Don't even accept connections if the queue is full. */
if (!QueueFull(server->connQueue))
{
connFd = accept(server->sd, (struct sockaddr *) & addr, &addrLen);
if (connFd < 0)
{
pthread_mutex_unlock(&server->connQueueMutex);
continue;
}
#ifdef TLS_IMPL
if (server->config.flags & HTTP_FLAG_TLS)
{
fp = TlsServerStream(connFd, server->config.tlsCert, server->config.tlsKey);
}
else
{
fp = StreamFd(connFd);
}
#else
fp = StreamFd(connFd);
#endif
if (!fp)
{
pthread_mutex_unlock(&server->connQueueMutex);
close(connFd);
continue;
}
QueuePush(server->connQueue, fp);
}
pthread_mutex_unlock(&server->connQueueMutex);
}
for (i = 0; i < server->config.threads; i++)
{
HttpServerWorkerThreadArgs *workerThread = ArrayGet(server->threadPool, i);
pthread_join(workerThread->thread, NULL);
Free(workerThread);
}
while ((fp = DequeueConnection(server)))
{
StreamClose(fp);
}
server->isRunning = 0;
return NULL;
}
int
HttpServerStart(HttpServer * server)
{
if (!server)
{
return 0;
}
if (server->isRunning)
{
return 1;
}
if (pthread_create(&server->socketThread, NULL, HttpServerEventThread, server) != 0)
{
return 0;
}
return 1;
}
void
HttpServerJoin(HttpServer * server)
{
if (!server)
{
return;
}
pthread_join(server->socketThread, NULL);
}
void
HttpServerStop(HttpServer * server)
{
if (!server)
{
return;
}
server->stop = 1;
}

212
src/Io.c
View File

@ -1,212 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Io.h>
#include <Memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
struct Io
{
IoFunctions io;
void *cookie;
};
Io *
IoCreate(void *cookie, IoFunctions funcs)
{
Io *io;
/* Must have at least read or write */
if (!funcs.read && !funcs.write)
{
return NULL;
}
io = Malloc(sizeof(Io));
if (!io)
{
return NULL;
}
io->cookie = cookie;
io->io.read = funcs.read;
io->io.write = funcs.write;
io->io.seek = funcs.seek;
io->io.close = funcs.close;
return io;
}
ssize_t
IoRead(Io * io, void *buf, size_t nBytes)
{
if (!io || !io->io.read)
{
errno = EBADF;
return -1;
}
return io->io.read(io->cookie, buf, nBytes);
}
ssize_t
IoWrite(Io * io, void *buf, size_t nBytes)
{
if (!io || !io->io.write)
{
errno = EBADF;
return -1;
}
return io->io.write(io->cookie, buf, nBytes);
}
off_t
IoSeek(Io * io, off_t offset, int whence)
{
if (!io)
{
errno = EBADF;
return -1;
}
if (!io->io.seek)
{
errno = EINVAL;
return -1;
}
return io->io.seek(io->cookie, offset, whence);
}
int
IoClose(Io * io)
{
int ret;
if (!io)
{
errno = EBADF;
return -1;
}
if (io->io.close)
{
ret = io->io.close(io->cookie);
}
else
{
ret = 0;
}
Free(io);
return ret;
}
int
IoVprintf(Io * io, const char *fmt, va_list ap)
{
char *buf = NULL;
size_t bufSize = 0;
FILE *fp;
int ret;
if (!io || !fmt)
{
return -1;
}
fp = open_memstream(&buf, &bufSize);
if (!fp)
{
return -1;
}
ret = vfprintf(fp, fmt, ap);
fclose(fp);
if (ret >= 0)
{
ret = IoWrite(io, buf, bufSize);
}
free(buf); /* Allocated by stdlib, not Memory
* API */
return ret;
}
int
IoPrintf(Io * io, const char *fmt,...)
{
va_list ap;
int ret;
va_start(ap, fmt);
ret = IoVprintf(io, fmt, ap);
va_end(ap);
return ret;
}
ssize_t
IoCopy(Io * in, Io * out)
{
ssize_t nBytes = 0;
char buf[IO_BUFFER];
ssize_t rRes;
ssize_t wRes;
if (!in || !out)
{
errno = EBADF;
return -1;
}
while ((rRes = IoRead(in, &buf, IO_BUFFER)) != 0)
{
if (rRes == -1)
{
return -1;
}
wRes = IoWrite(out, &buf, rRes);
if (wRes == -1)
{
return -1;
}
nBytes += wRes;
}
return nBytes;
}

95
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Io.h>
#include <Memory.h>
#include <fcntl.h>
static ssize_t
IoReadFd(void *cookie, void *buf, size_t nBytes)
{
int fd = *((int *) cookie);
return read(fd, buf, nBytes);
}
static ssize_t
IoWriteFd(void *cookie, void *buf, size_t nBytes)
{
int fd = *((int *) cookie);
return write(fd, buf, nBytes);
}
static off_t
IoSeekFd(void *cookie, off_t offset, int whence)
{
int fd = *((int *) cookie);
return lseek(fd, offset, whence);
}
static int
IoCloseFd(void *cookie)
{
int fd = *((int *) cookie);
Free(cookie);
return close(fd);
}
Io *
IoFd(int fd)
{
int *cookie = Malloc(sizeof(int));
IoFunctions f;
if (!cookie)
{
return NULL;
}
*cookie = fd;
f.read = IoReadFd;
f.write = IoWriteFd;
f.seek = IoSeekFd;
f.close = IoCloseFd;
return IoCreate(cookie, f);
}
Io *
IoOpen(const char *path, int flags, mode_t mode)
{
int fd = open(path, flags, mode);
if (fd == -1)
{
return NULL;
}
return IoFd(fd);
}

91
src/Io/IoFile.c
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@ -1,91 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Io.h>
#include <stdio.h>
static ssize_t
IoReadFile(void *cookie, void *buf, size_t nBytes)
{
FILE *fp = cookie;
return fread(buf, 1, nBytes, fp);
}
static ssize_t
IoWriteFile(void *cookie, void *buf, size_t nBytes)
{
FILE *fp = cookie;
size_t res = fwrite(buf, 1, nBytes, fp);
/*
* fwrite() may be buffered on some platforms, but at this low level,
* it should not be; buffering happens in Stream, not Io.
*/
fflush(fp);
return res;
}
static off_t
IoSeekFile(void *cookie, off_t offset, int whence)
{
FILE *fp = cookie;
off_t ret = fseeko(fp, offset, whence);
if (ret > -1)
{
return ftello(fp);
}
else
{
return ret;
}
}
static int
IoCloseFile(void *cookie)
{
FILE *fp = cookie;
return fclose(fp);
}
Io *
IoFile(FILE * fp)
{
IoFunctions f;
if (!fp)
{
return NULL;
}
f.read = IoReadFile;
f.write = IoWriteFile;
f.seek = IoSeekFile;
f.close = IoCloseFile;
return IoCreate(fp, f);
}

1384
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388
src/Log.c
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@ -1,388 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Log.h>
#include <Memory.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <ctype.h>
#include <stdarg.h>
#include <pthread.h>
#define LOG_TSBUFFER 64
struct LogConfig
{
int level;
size_t indent;
Stream *out;
int flags;
char *tsFmt;
pthread_mutex_t lock;
};
LogConfig *globalConfig = NULL;
LogConfig *
LogConfigCreate(void)
{
LogConfig *config;
config = Malloc(sizeof(LogConfig));
if (!config)
{
return NULL;
}
memset(config, 0, sizeof(LogConfig));
LogConfigLevelSet(config, LOG_INFO);
LogConfigIndentSet(config, 0);
LogConfigOutputSet(config, NULL); /* Will set to stdout */
LogConfigFlagSet(config, LOG_FLAG_COLOR);
LogConfigTimeStampFormatSet(config, "%y-%m-%d %H:%M:%S");
return config;
}
LogConfig *
LogConfigGlobal(void)
{
if (!globalConfig)
{
globalConfig = LogConfigCreate();
}
return globalConfig;
}
void
LogConfigFlagClear(LogConfig * config, int flags)
{
if (!config)
{
return;
}
config->flags &= ~flags;
}
static int
LogConfigFlagGet(LogConfig * config, int flags)
{
if (!config)
{
return 0;
}
return config->flags & flags;
}
void
LogConfigFlagSet(LogConfig * config, int flags)
{
if (!config)
{
return;
}
config->flags |= flags;
}
void
LogConfigFree(LogConfig * config)
{
if (!config)
{
return;
}
Free(config);
if (config == globalConfig)
{
globalConfig = NULL;
}
}
void
LogConfigIndent(LogConfig * config)
{
if (config)
{
config->indent += 2;
}
}
void
LogConfigIndentSet(LogConfig * config, size_t indent)
{
if (!config)
{
return;
}
config->indent = indent;
}
int
LogConfigLevelGet(LogConfig * config)
{
if (!config)
{
return -1;
}
return config->level;
}
void
LogConfigLevelSet(LogConfig * config, int level)
{
if (!config)
{
return;
}
switch (level)
{
case LOG_ERR:
case LOG_WARNING:
case LOG_INFO:
case LOG_DEBUG:
config->level = level;
default:
break;
}
}
void
LogConfigOutputSet(LogConfig * config, Stream * out)
{
if (!config)
{
return;
}
if (out)
{
config->out = out;
}
else
{
config->out = StreamStdout();
}
}
void
LogConfigTimeStampFormatSet(LogConfig * config, char *tsFmt)
{
if (config)
{
config->tsFmt = tsFmt;
}
}
void
LogConfigUnindent(LogConfig * config)
{
if (config && config->indent >= 2)
{
config->indent -= 2;
}
}
void
Logv(LogConfig * config, int level, const char *msg, va_list argp)
{
size_t i;
int doColor;
char indicator;
/*
* Only proceed if we have a config and its log level is set to a
* value that permits us to log. This is as close as we can get
* to a no-op function if we aren't logging anything, without doing
* some crazy macro magic.
*/
if (!config || level > config->level)
{
return;
}
/* Misconfiguration */
if (!config->out)
{
return;
}
pthread_mutex_lock(&config->lock);
if (LogConfigFlagGet(config, LOG_FLAG_SYSLOG))
{
/* No further print logic is needed; syslog will handle it all
* for us. */
vsyslog(level, msg, argp);
pthread_mutex_unlock(&config->lock);
return;
}
doColor = LogConfigFlagGet(config, LOG_FLAG_COLOR)
&& isatty(StreamFileno(config->out));
if (doColor)
{
char *ansi;
switch (level)
{
case LOG_EMERG:
case LOG_ALERT:
case LOG_CRIT:
case LOG_ERR:
/* Bold Red */
ansi = "\033[1;31m";
break;
case LOG_WARNING:
/* Bold Yellow */
ansi = "\033[1;33m";
break;
case LOG_NOTICE:
/* Bold Magenta */
ansi = "\033[1;35m";
break;
case LOG_INFO:
/* Bold Green */
ansi = "\033[1;32m";
break;
case LOG_DEBUG:
/* Bold Blue */
ansi = "\033[1;34m";
break;
default:
ansi = "";
break;
}
StreamPuts(config->out, ansi);
}
StreamPutc(config->out, '[');
if (config->tsFmt)
{
time_t timer = time(NULL);
struct tm *timeInfo = localtime(&timer);
char tsBuffer[LOG_TSBUFFER];
int tsLength = strftime(tsBuffer, LOG_TSBUFFER, config->tsFmt,
timeInfo);
if (tsLength)
{
StreamPuts(config->out, tsBuffer);
if (!isspace((unsigned char) tsBuffer[tsLength - 1]))
{
StreamPutc(config->out, ' ');
}
}
}
switch (level)
{
case LOG_EMERG:
indicator = '#';
break;
case LOG_ALERT:
indicator = '@';
break;
case LOG_CRIT:
indicator = 'X';
break;
case LOG_ERR:
indicator = 'x';
break;
case LOG_WARNING:
indicator = '!';
break;
case LOG_NOTICE:
indicator = '~';
break;
case LOG_INFO:
indicator = '>';
break;
case LOG_DEBUG:
indicator = '*';
break;
default:
indicator = '?';
break;
}
StreamPrintf(config->out, "%c]", indicator);
if (doColor)
{
/* ANSI Reset */
StreamPuts(config->out, "\033[0m");
}
StreamPutc(config->out, ' ');
for (i = 0; i < config->indent; i++)
{
StreamPutc(config->out, ' ');
}
StreamVprintf(config->out, msg, argp);
StreamPutc(config->out, '\n');
StreamFlush(config->out);
pthread_mutex_unlock(&config->lock);
}
void
LogTo(LogConfig * config, int level, const char *fmt,...)
{
va_list argp;
va_start(argp, fmt);
Logv(config, level, fmt, argp);
va_end(argp);
}
extern void
Log(int level, const char *fmt,...)
{
va_list argp;
va_start(argp, fmt);
Logv(LogConfigGlobal(), level, fmt, argp);
va_end(argp);
}

493
src/Memory.c
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@ -1,493 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <pthread.h>
#ifndef MEMORY_TABLE_CHUNK
#define MEMORY_TABLE_CHUNK 256
#endif
#ifndef MEMORY_HEXDUMP_WIDTH
#define MEMORY_HEXDUMP_WIDTH 16
#endif
struct MemoryInfo
{
size_t size;
const char *file;
int line;
void *pointer;
};
static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
static void (*hook) (MemoryAction, MemoryInfo *, void *) = NULL;
static void *hookArgs = NULL;
static MemoryInfo **allocations = NULL;
static size_t allocationsSize = 0;
static size_t allocationsLen = 0;
static size_t
MemoryHash(void *p)
{
return (((size_t) p) >> 2 * 7) % allocationsSize;
}
static int
MemoryInsert(MemoryInfo * a)
{
size_t hash;
if (!allocations)
{
allocationsSize = MEMORY_TABLE_CHUNK;
allocations = calloc(allocationsSize, sizeof(void *));
if (!allocations)
{
return 0;
}
}
/* If the next insertion would cause the table to be at least 3/4
* full, re-allocate and re-hash. */
if ((allocationsLen + 1) >= ((allocationsSize * 3) >> 2))
{
size_t i;
size_t tmpAllocationsSize = allocationsSize;
MemoryInfo **tmpAllocations;
allocationsSize += MEMORY_TABLE_CHUNK;
tmpAllocations = calloc(allocationsSize, sizeof(void *));
if (!tmpAllocations)
{
return 0;
}
for (i = 0; i < tmpAllocationsSize; i++)
{
if (allocations[i])
{
hash = MemoryHash(allocations[i]->pointer);
while (tmpAllocations[hash])
{
hash = (hash + 1) % allocationsSize;
}
tmpAllocations[hash] = allocations[i];
}
}
free(allocations);
allocations = tmpAllocations;
}
hash = MemoryHash(a->pointer);
while (allocations[hash])
{
hash = (hash + 1) % allocationsSize;
}
allocations[hash] = a;
allocationsLen++;
return 1;
}
static void
MemoryDelete(MemoryInfo * a)
{
size_t hash = MemoryHash(a->pointer);
size_t count = 0;
while (count <= allocationsSize)
{
if (allocations[hash] && allocations[hash] == a)
{
allocations[hash] = NULL;
allocationsLen--;
return;
}
else
{
hash = (hash + 1) % allocationsSize;
count++;
}
}
}
void *
MemoryAllocate(size_t size, const char *file, int line)
{
void *p;
MemoryInfo *a;
pthread_mutex_lock(&lock);
p = malloc(size);
if (!p)
{
pthread_mutex_unlock(&lock);
return NULL;
}
a = malloc(sizeof(MemoryInfo));
if (!a)
{
free(p);
pthread_mutex_unlock(&lock);
return NULL;
}
a->size = size;
a->file = file;
a->line = line;
a->pointer = p;
if (!MemoryInsert(a))
{
free(a);
free(p);
pthread_mutex_unlock(&lock);
return NULL;
}
if (hook)
{
hook(MEMORY_ALLOCATE, a, hookArgs);
}
pthread_mutex_unlock(&lock);
return p;
}
void *
MemoryReallocate(void *p, size_t size, const char *file, int line)
{
MemoryInfo *a;
void *new = NULL;
if (!p)
{
return MemoryAllocate(size, file, line);
}
a = MemoryInfoGet(p);
if (a)
{
pthread_mutex_lock(&lock);
new = realloc(a->pointer, size);
if (new)
{
MemoryDelete(a);
a->size = size;
a->file = file;
a->line = line;
a->pointer = new;
MemoryInsert(a);
if (hook)
{
hook(MEMORY_REALLOCATE, a, hookArgs);
}
}
pthread_mutex_unlock(&lock);
}
else if (hook)
{
a = malloc(sizeof(MemoryInfo));
if (a)
{
a->size = 0;
a->file = file;
a->line = line;
a->pointer = p;
hook(MEMORY_BAD_POINTER, a, hookArgs);
free(a);
}
}
return new;
}
void
MemoryFree(void *p, const char *file, int line)
{
MemoryInfo *a;
if (!p)
{
return;
}
a = MemoryInfoGet(p);
if (a)
{
pthread_mutex_lock(&lock);
if (hook)
{
a->file = file;
a->line = line;
hook(MEMORY_FREE, a, hookArgs);
}
MemoryDelete(a);
free(a->pointer);
free(a);
pthread_mutex_unlock(&lock);
}
else if (hook)
{
a = malloc(sizeof(MemoryInfo));
if (a)
{
a->file = file;
a->line = line;
a->size = 0;
a->pointer = p;
hook(MEMORY_BAD_POINTER, a, hookArgs);
free(a);
}
}
}
size_t
MemoryAllocated(void)
{
size_t i;
size_t total = 0;
pthread_mutex_lock(&lock);
for (i = 0; i < allocationsSize; i++)
{
if (allocations[i])
{
total += allocations[i]->size;
}
}
pthread_mutex_unlock(&lock);
return total;
}
void
MemoryFreeAll(void)
{
size_t i;
pthread_mutex_lock(&lock);
for (i = 0; i < allocationsSize; i++)
{
if (allocations[i])
{
free(allocations[i]->pointer);
free(allocations[i]);
}
}
free(allocations);
allocations = NULL;
allocationsSize = 0;
allocationsLen = 0;
pthread_mutex_unlock(&lock);
}
MemoryInfo *
MemoryInfoGet(void *p)
{
size_t hash, count;
pthread_mutex_lock(&lock);
hash = MemoryHash(p);
count = 0;
while (count <= allocationsSize)
{
if (!allocations[hash] || allocations[hash]->pointer != p)
{
hash = (hash + 1) % allocationsSize;
count++;
}
else
{
pthread_mutex_unlock(&lock);
return allocations[hash];
}
}
pthread_mutex_unlock(&lock);
return NULL;
}
size_t
MemoryInfoGetSize(MemoryInfo * a)
{
if (!a)
{
return 0;
}
return a->size;
}
const char *
MemoryInfoGetFile(MemoryInfo * a)
{
if (!a)
{
return NULL;
}
return a->file;
}
int
MemoryInfoGetLine(MemoryInfo * a)
{
if (!a)
{
return -1;
}
return a->line;
}
void *
MemoryInfoGetPointer(MemoryInfo * a)
{
if (!a)
{
return NULL;
}
return a->pointer;
}
void
MemoryIterate(void (*iterFunc) (MemoryInfo *, void *), void *args)
{
size_t i;
pthread_mutex_lock(&lock);
for (i = 0; i < allocationsSize; i++)
{
if (allocations[i])
{
iterFunc(allocations[i], args);
}
}
pthread_mutex_unlock(&lock);
}
void
MemoryHook(void (*memHook) (MemoryAction, MemoryInfo *, void *), void *args)
{
pthread_mutex_lock(&lock);
hook = memHook;
hookArgs = args;
pthread_mutex_unlock(&lock);
}
void
MemoryHexDump(MemoryInfo * info, void (*printFunc) (size_t, char *, char *, void *), void *args)
{
char hexBuf[(MEMORY_HEXDUMP_WIDTH * 2) + MEMORY_HEXDUMP_WIDTH + 1];
char asciiBuf[MEMORY_HEXDUMP_WIDTH + 1];
size_t pI = 0;
size_t hI = 0;
size_t aI = 0;
const unsigned char *pc;
if (!info || !printFunc)
{
return;
}
pc = MemoryInfoGetPointer(info);
for (pI = 0; pI < MemoryInfoGetSize(info); pI++)
{
if (pI > 0 && pI % MEMORY_HEXDUMP_WIDTH == 0)
{
hexBuf[hI - 1] = '\0';
asciiBuf[aI] = '\0';
printFunc(pI - MEMORY_HEXDUMP_WIDTH, hexBuf, asciiBuf, args);
snprintf(hexBuf, 4, "%02x ", pc[pI]);
hI = 3;
asciiBuf[0] = isprint(pc[pI]) ? pc[pI] : '.';
asciiBuf[1] = '\0';
aI = 1;
}
else
{
asciiBuf[aI] = isprint(pc[pI]) ? pc[pI] : '.';
aI++;
snprintf(hexBuf + hI, 4, "%02x ", pc[pI]);
hI += 3;
}
}
hexBuf[hI] = '\0';
hI--;
while (hI < sizeof(hexBuf) - 2)
{
hexBuf[hI] = ' ';
hI++;
}
while (aI < sizeof(asciiBuf) - 1)
{
asciiBuf[aI] = ' ';
aI++;
}
hexBuf[hI] = '\0';
asciiBuf[aI] = '\0';
printFunc(pI - ((pI % MEMORY_HEXDUMP_WIDTH) ?
(pI % MEMORY_HEXDUMP_WIDTH) : MEMORY_HEXDUMP_WIDTH),
hexBuf, asciiBuf, args);
printFunc(pI, NULL, NULL, args);
}

176
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Queue.h>
#include <Memory.h>
struct Queue
{
void **items;
size_t size;
size_t front;
size_t rear;
};
Queue *
QueueCreate(size_t size)
{
Queue *q;
if (!size)
{
/* Can't have a queue of length zero */
return NULL;
}
q = Malloc(sizeof(Queue));
if (!q)
{
return NULL;
}
q->items = Malloc(size * sizeof(void *));
if (!q->items)
{
Free(q);
return NULL;
}
q->size = size;
q->front = size + 1;
q->rear = size + 1;
return q;
}
void
QueueFree(Queue * q)
{
if (q)
{
Free(q->items);
}
Free(q);
}
int
QueueFull(Queue * q)
{
if (!q)
{
return 0;
}
return ((q->front == q->rear + 1) || (q->front == 0 && q->rear == q->size - 1));
}
int
QueueEmpty(Queue * q)
{
if (!q)
{
return 0;
}
return q->front == q->size + 1;
}
int
QueuePush(Queue * q, void *element)
{
if (!q || !element)
{
return 0;
}
if (QueueFull(q))
{
return 0;
}
if (q->front == q->size + 1)
{
q->front = 0;
}
if (q->rear == q->size + 1)
{
q->rear = 0;
}
else
{
q->rear = (q->rear + 1) % q->size;
}
q->items[q->rear] = element;
return 1;
}
void *
QueuePop(Queue * q)
{
void *element;
if (!q)
{
return NULL;
}
if (QueueEmpty(q))
{
return NULL;
}
element = q->items[q->front];
if (q->front == q->rear)
{
q->front = q->size + 1;
q->rear = q->size + 1;
}
else
{
q->front = (q->front + 1) % q->size;
}
return element;
}
void *
QueuePeek(Queue * q)
{
if (!q)
{
return NULL;
}
if (QueueEmpty(q))
{
return NULL;
}
return q->items[q->front];
}

172
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Rand.h>
#include <Int.h>
#include <Util.h>
#include <Memory.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#define RAND_STATE_VECTOR_LENGTH 624
#define RAND_STATE_VECTOR_M 397
#define RAND_UPPER_MASK 0x80000000
#define RAND_LOWER_MASK 0x7FFFFFFF
#define RAND_TEMPER_B 0x9D2C5680
#define RAND_TEMPER_C 0xEFC60000
typedef struct RandState
{
UInt32 mt[RAND_STATE_VECTOR_LENGTH];
int index;
} RandState;
static void
RandSeed(RandState * state, UInt32 seed)
{
state->mt[0] = seed & 0xFFFFFFFF;
for (state->index = 1; state->index < RAND_STATE_VECTOR_LENGTH; state->index++)
{
state->mt[state->index] = (6069 * state->mt[state->index - 1]) & 0xFFFFFFFF;
}
}
static UInt32
RandGenerate(RandState * state)
{
static const UInt32 mag[2] = {0x0, 0x9908B0DF};
UInt32 result;
if (state->index >= RAND_STATE_VECTOR_LENGTH || state->index < 0)
{
int kk;
if (state->index >= RAND_STATE_VECTOR_LENGTH + 1 || state->index < 0)
{
RandSeed(state, 4357);
}
for (kk = 0; kk < RAND_STATE_VECTOR_LENGTH - RAND_STATE_VECTOR_M; kk++)
{
result = (state->mt[kk] & RAND_UPPER_MASK) | (state->mt[kk + 1] & RAND_LOWER_MASK);
state->mt[kk] = state->mt[kk + RAND_STATE_VECTOR_M] ^ (result >> 1) ^ mag[result & 0x1];
}
for (; kk < RAND_STATE_VECTOR_LENGTH - 1; kk++)
{
result = (state->mt[kk] & RAND_UPPER_MASK) | (state->mt[kk + 1] & RAND_LOWER_MASK);
state->mt[kk] = state->mt[kk + (RAND_STATE_VECTOR_M - RAND_STATE_VECTOR_LENGTH)] ^ (result >> 1) ^ mag[result & 0x1];
}
result = (state->mt[RAND_STATE_VECTOR_LENGTH - 1] & RAND_UPPER_MASK) | (state->mt[0] & RAND_LOWER_MASK);
state->mt[RAND_STATE_VECTOR_LENGTH - 1] = state->mt[RAND_STATE_VECTOR_M - 1] ^ (result >> 1) ^ mag[result & 0x1];
state->index = 0;
}
result = state->mt[state->index++];
result ^= (result >> 11);
result ^= (result << 7) & RAND_TEMPER_B;
result ^= (result << 15) & RAND_TEMPER_C;
result ^= (result >> 18);
return result;
}
static void
RandDestructor(void *p)
{
Free(p);
}
/* Generate random numbers using rejection sampling. The basic idea is
* to "reroll" if a number happens to be outside the range. However
* this could be extremely inefficient.
*
* Another idea would just be to "reroll" if the generated number ends up
* in the previously "biased" range, and THEN do a modulo.
*
* This would be far more efficient for small values of max, and fixes the
* bias issue. */
/* This algorithm therefore computes N random numbers generally in O(N)
* time, while being less biased. */
void
RandIntN(int *buf, size_t size, unsigned int max)
{
static pthread_key_t stateKey;
static int createdKey = 0;
/* Limit the range to banish all previously biased results */
const int allowed = RAND_MAX - RAND_MAX % max;
RandState *state;
int tmp;
size_t i;
if (!createdKey)
{
pthread_key_create(&stateKey, RandDestructor);
createdKey = 1;
}
state = pthread_getspecific(stateKey);
if (!state)
{
/* Generate a seed from the system time, PID, and TID */
UInt32 seed = UtilServerTs() ^ getpid() ^ (unsigned long) pthread_self();
state = Malloc(sizeof(RandState));
RandSeed(state, seed);
pthread_setspecific(stateKey, state);
}
/* Generate {size} random numbers. */
for (i = 0; i < size; i++)
{
/* Most of the time, this will take about 1 loop */
do
{
tmp = RandGenerate(state);
} while (tmp > allowed);
buf[i] = tmp % max;
}
}
/* Generate just 1 random number */
int
RandInt(unsigned int max)
{
int val = 0;
RandIntN(&val, 1, max);
return val;
}

238
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Sha2.h>
#include <Memory.h>
#include <Int.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#define GET_UINT32(x) \
(((UInt32)(x)[0] << 24) | \
((UInt32)(x)[1] << 16) | \
((UInt32)(x)[2] << 8) | \
((UInt32)(x)[3]))
#define PUT_UINT32(dst, x) { \
(dst)[0] = (x) >> 24; \
(dst)[1] = (x) >> 16; \
(dst)[2] = (x) >> 8; \
(dst)[3] = (x); \
}
#define ROTR(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
#define S0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ (x >> 3))
#define S1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ (x >> 10))
#define T0(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
#define T1(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
#define CH(a, b, c) (((a) & (b)) ^ ((~(a)) & (c)))
#define MAJ(a, b, c) (((a) & (b)) ^ ((a) & (c)) ^ ((b) & (c)))
#define WW(i) (w[i] = w[i - 16] + S0(w[i - 15]) + w[i - 7] + S1(w[i - 2]))
#define ROUND(a, b, c, d, e, f, g, h, k, w) { \
UInt32 tmp0 = h + T0(e) + CH(e, f, g) + k + w; \
UInt32 tmp1 = T1(a) + MAJ(a, b, c); \
h = tmp0 + tmp1; \
d += tmp0; \
}
typedef struct Sha256Context
{
size_t length;
UInt32 state[8];
size_t bufLen;
unsigned char buffer[64];
} Sha256Context;
static void
Sha256Chunk(Sha256Context * context, unsigned char chunk[64])
{
const UInt32 rk[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
};
UInt32 w[64];
UInt32 a, b, c, d, e, f, g, h;
int i;
for (i = 0; i < 16; i++)
{
w[i] = GET_UINT32(&chunk[4 * i]);
}
a = context->state[0];
b = context->state[1];
c = context->state[2];
d = context->state[3];
e = context->state[4];
f = context->state[5];
g = context->state[6];
h = context->state[7];
for (i = 0; i < 16; i += 8)
{
ROUND(a, b, c, d, e, f, g, h, rk[i], w[i]);
ROUND(h, a, b, c, d, e, f, g, rk[i + 1], w[i + 1]);
ROUND(g, h, a, b, c, d, e, f, rk[i + 2], w[i + 2]);
ROUND(f, g, h, a, b, c, d, e, rk[i + 3], w[i + 3]);
ROUND(e, f, g, h, a, b, c, d, rk[i + 4], w[i + 4]);
ROUND(d, e, f, g, h, a, b, c, rk[i + 5], w[i + 5]);
ROUND(c, d, e, f, g, h, a, b, rk[i + 6], w[i + 6]);
ROUND(b, c, d, e, f, g, h, a, rk[i + 7], w[i + 7]);
}
for (i = 16; i < 64; i += 8)
{
ROUND(a, b, c, d, e, f, g, h, rk[i], WW(i));
ROUND(h, a, b, c, d, e, f, g, rk[i + 1], WW(i + 1));
ROUND(g, h, a, b, c, d, e, f, rk[i + 2], WW(i + 2));
ROUND(f, g, h, a, b, c, d, e, rk[i + 3], WW(i + 3));
ROUND(e, f, g, h, a, b, c, d, rk[i + 4], WW(i + 4));
ROUND(d, e, f, g, h, a, b, c, rk[i + 5], WW(i + 5));
ROUND(c, d, e, f, g, h, a, b, rk[i + 6], WW(i + 6));
ROUND(b, c, d, e, f, g, h, a, rk[i + 7], WW(i + 7));
}
context->state[0] += a;
context->state[1] += b;
context->state[2] += c;
context->state[3] += d;
context->state[4] += e;
context->state[5] += f;
context->state[6] += g;
context->state[7] += h;
}
static void
Sha256Process(Sha256Context * context, unsigned char *data, size_t length)
{
context->length += length;
if (context->bufLen && context->bufLen + length >= 64)
{
int len = 64 - context->bufLen;
memcpy(context->buffer + context->bufLen, data, len);
Sha256Chunk(context, context->buffer);
data += len;
length -= len;
context->bufLen = 0;
}
while (length >= 64)
{
Sha256Chunk(context, data);
data += 64;
length -= 64;
}
if (length)
{
memcpy(context->buffer + context->bufLen, data, length);
context->bufLen += length;
}
}
char *
Sha256(char *str)
{
Sha256Context context;
size_t i;
unsigned char out[32];
char *outStr;
unsigned char fill[64];
UInt32 fillLen;
unsigned char buf[8];
UInt32 hiLen;
UInt32 loLen;
if (!str)
{
return NULL;
}
outStr = Malloc(65);
if (!outStr)
{
return NULL;
}
context.state[0] = 0x6a09e667;
context.state[1] = 0xbb67ae85;
context.state[2] = 0x3c6ef372;
context.state[3] = 0xa54ff53a;
context.state[4] = 0x510e527f;
context.state[5] = 0x9b05688c;
context.state[6] = 0x1f83d9ab;
context.state[7] = 0x5be0cd19;
context.bufLen = 0;
context.length = 0;
memset(context.buffer, 0, 64);
Sha256Process(&context, (unsigned char *) str, strlen(str));
memset(fill, 0, 64);
fill[0] = 0x80;
fillLen = (context.bufLen < 56) ? 56 - context.bufLen : 120 - context.bufLen;
hiLen = (UInt32) (context.length >> 29);
loLen = (UInt32) (context.length << 3);
PUT_UINT32(&buf[0], hiLen);
PUT_UINT32(&buf[4], loLen);
Sha256Process(&context, fill, fillLen);
Sha256Process(&context, buf, 8);
for (i = 0; i < 8; i++)
{
PUT_UINT32(&out[4 * i], context.state[i]);
}
/* Convert to string */
for (i = 0; i < 32; i++)
{
snprintf(outStr + (2 * i), 3, "%02x", out[i]);
}
return outStr;
}

297
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Str.h>
#include <Memory.h>
#include <Util.h>
#include <Rand.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <pthread.h>
#include <unistd.h>
char *
StrUtf8Encode(unsigned long utf8)
{
char *str;
str = Malloc(5 * sizeof(char));
if (!str)
{
return NULL;
}
if (utf8 <= 0x7F) /* Plain ASCII */
{
str[0] = (char) utf8;
str[1] = '\0';
}
else if (utf8 <= 0x07FF) /* 2-byte */
{
str[0] = (char) (((utf8 >> 6) & 0x1F) | 0xC0);
str[1] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
str[2] = '\0';
}
else if (utf8 <= 0xFFFF) /* 3-byte */
{
str[0] = (char) (((utf8 >> 12) & 0x0F) | 0xE0);
str[1] = (char) (((utf8 >> 6) & 0x3F) | 0x80);
str[2] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
str[3] = '\0';
}
else if (utf8 <= 0x10FFFF) /* 4-byte */
{
str[0] = (char) (((utf8 >> 18) & 0x07) | 0xF0);
str[1] = (char) (((utf8 >> 12) & 0x3F) | 0x80);
str[2] = (char) (((utf8 >> 6) & 0x3F) | 0x80);
str[3] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
str[4] = '\0';
}
else
{
/* Send replacement character */
str[0] = (char) 0xEF;
str[1] = (char) 0xBF;
str[2] = (char) 0xBD;
str[3] = '\0';
}
return str;
}
char *
StrDuplicate(const char *inStr)
{
size_t len;
char *outStr;
if (!inStr)
{
return NULL;
}
len = strlen(inStr);
outStr = Malloc(len + 1); /* For the null terminator */
if (!outStr)
{
return NULL;
}
strncpy(outStr, inStr, len + 1);
return outStr;
}
char *
StrSubstr(const char *inStr, size_t start, size_t end)
{
size_t len;
size_t i;
size_t j;
char *outStr;
if (!inStr)
{
return NULL;
}
if (start >= end)
{
return NULL;
}
len = end - start;
outStr = Malloc(len + 1);
if (!outStr)
{
return NULL;
}
j = 0;
for (i = start; i < end; i++)
{
if (inStr[i] == '\0')
{
break;
}
outStr[j] = inStr[i];
j++;
}
outStr[j] = '\0';
return outStr;
}
char *
StrConcat(size_t nStr,...)
{
va_list argp;
char *str;
char *strp;
size_t strLen = 0;
size_t i;
va_start(argp, nStr);
for (i = 0; i < nStr; i++)
{
char *argStr = va_arg(argp, char *);
if (argStr)
{
strLen += strlen(argStr);
}
}
va_end(argp);
str = Malloc(strLen + 1);
strp = str;
va_start(argp, nStr);
for (i = 0; i < nStr; i++)
{
/* Manually copy chars instead of using strcopy() so we don't
* have to call strlen() on the strings again, and we aren't
* writing useless null chars. */
char *argStr = va_arg(argp, char *);
if (argStr)
{
while (*argStr)
{
*strp = *argStr;
strp++;
argStr++;
}
}
}
va_end(argp);
str[strLen] = '\0';
return str;
}
int
StrBlank(const char *str)
{
int blank = 1;
size_t i = 0;
while (str[i])
{
blank &= isspace((unsigned char) str[i]);
/* No need to continue if we don't have a blank */
if (!blank)
{
break;
}
i++;
}
return blank;
}
char *
StrRandom(size_t len)
{
static const char charset[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
char *str;
int *nums;
size_t i;
if (!len)
{
return NULL;
}
str = Malloc(len + 1);
if (!str)
{
return NULL;
}
nums = Malloc(len * sizeof(int));
if (!nums)
{
Free(str);
return NULL;
}
/* TODO: This seems slow. */
RandIntN(nums, len, sizeof(charset) - 1);
for (i = 0; i < len; i++)
{
str[i] = charset[nums[i]];
}
Free(nums);
str[len] = '\0';
return str;
}
char *
StrInt(long i)
{
char *str;
int len;
len = snprintf(NULL, 0, "%ld", i);
str = Malloc(len + 1);
if (!str)
{
return NULL;
}
snprintf(str, len + 1, "%ld", i);
return str;
}
int
StrEquals(const char *str1, const char *str2)
{
/* Both strings are NULL, they're equal */
if (!str1 && !str2)
{
return 1;
}
/* One or the other is NULL, they're not equal */
if (!str1 || !str2)
{
return 0;
}
/* Neither are NULL, do a regular string comparison */
return strcmp(str1, str2) == 0;
}

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Stream.h>
#include <Io.h>
#include <Memory.h>
#include <Util.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#ifndef STREAM_RETRIES
#define STREAM_RETRIES 10
#endif
#ifndef STREAM_DELAY
#define STREAM_DELAY 2
#endif
#define STREAM_EOF (1 << 0)
#define STREAM_ERR (1 << 1)
#define STREAM_TTY (1 << 2)
struct Stream
{
Io *io;
char *rBuf;
size_t rLen;
size_t rOff;
char *wBuf;
size_t wLen;
char *ugBuf;
size_t ugSize;
size_t ugLen;
int flags;
int fd;
};
Stream *
StreamIo(Io * io)
{
Stream *stream;
if (!io)
{
return NULL;
}
stream = Malloc(sizeof(Stream));
if (!stream)
{
return NULL;
}
memset(stream, 0, sizeof(Stream));
stream->io = io;
stream->fd = -1;
return stream;
}
Stream *
StreamFd(int fd)
{
Io *io = IoFd(fd);
Stream *stream;
if (!io)
{
return NULL;
}
stream = StreamIo(io);
if (!stream)
{
return NULL;
}
stream->fd = fd;
if (isatty(stream->fd))
{
stream->flags |= STREAM_TTY;
}
return stream;
}
Stream *
StreamFile(FILE * fp)
{
Io *io = IoFile(fp);
Stream *stream;
if (!io)
{
return NULL;
}
stream = StreamIo(io);
if (!stream)
{
return NULL;
}
stream->fd = fileno(fp);
if (isatty(stream->fd))
{
stream->flags |= STREAM_TTY;
}
return stream;
}
Stream *
StreamOpen(const char *path, const char *mode)
{
FILE *fp = fopen(path, mode);
if (!fp)
{
return NULL;
}
return StreamFile(fp);
}
Stream *
StreamStdout(void)
{
static Stream *stdOut = NULL;
if (!stdOut)
{
stdOut = StreamFd(STDOUT_FILENO);
}
return stdOut;
}
Stream *
StreamStderr(void)
{
static Stream *stdErr = NULL;
if (!stdErr)
{
stdErr = StreamFd(STDERR_FILENO);
}
return stdErr;
}
Stream *
StreamStdin(void)
{
static Stream *stdIn = NULL;
if (!stdIn)
{
stdIn = StreamFd(STDIN_FILENO);
}
return stdIn;
}
int
StreamClose(Stream * stream)
{
int ret = 0;
if (!stream)
{
errno = EBADF;
return EOF;
}
if (stream->rBuf)
{
Free(stream->rBuf);
}
if (stream->wBuf)
{
ssize_t writeRes = IoWrite(stream->io, stream->wBuf, stream->wLen);
Free(stream->wBuf);
if (writeRes == -1)
{
ret = EOF;
}
}
if (stream->ugBuf)
{
Free(stream->ugBuf);
}
ret = IoClose(stream->io);
Free(stream);
return ret;
}
int
StreamVprintf(Stream * stream, const char *fmt, va_list ap)
{
/* This might look like very similar code to IoVprintf(), but I
* chose not to defer to IoVprintf() because that would require us
* to immediately flush the buffer, since the Io API is unbuffered.
* StreamPuts() uses StreamPutc() under the hood, which is
* buffered. It therefore allows us to finish filling the buffer
* and then only flush it when necessary, preventing superfluous
* writes. */
char *buf = NULL;
size_t bufSize = 0;
FILE *fp;
int ret;
if (!fmt)
{
return -1;
}
fp = open_memstream(&buf, &bufSize);
if (!fp)
{
return -1;
}
ret = vfprintf(fp, fmt, ap);
fclose(fp);
if (ret >= 0 && stream)
{
if (StreamPuts(stream, buf) < 0)
{
ret = -1;
};
}
free(buf); /* Allocated by stdlib, not Memory
* API */
return ret;
}
int
StreamPrintf(Stream * stream, const char *fmt,...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = StreamVprintf(stream, fmt, ap);
va_end(ap);
return ret;
}
int
StreamGetc(Stream * stream)
{
int c;
if (!stream)
{
errno = EBADF;
return EOF;
}
/* Empty the ungetc stack first */
if (stream->ugLen)
{
c = stream->ugBuf[stream->ugLen - 1];
stream->ugLen--;
return c;
}
if (stream->flags & STREAM_EOF)
{
return EOF;
}
if (!stream->rBuf)
{
/* No buffer allocated yet */
stream->rBuf = Malloc(IO_BUFFER);
if (!stream->rBuf)
{
stream->flags |= STREAM_ERR;
return EOF;
}
stream->rOff = 0;
stream->rLen = 0;
}
if (stream->rOff >= stream->rLen)
{
/* We read through the entire buffer; get a new one */
ssize_t readRes = IoRead(stream->io, stream->rBuf, IO_BUFFER);
if (readRes == 0)
{
stream->flags |= STREAM_EOF;
return EOF;
}
if (readRes == -1)
{
stream->flags |= STREAM_ERR;
return EOF;
}
stream->rOff = 0;
stream->rLen = readRes;
}
/* Read the character in the buffer and advance the offset */
c = stream->rBuf[stream->rOff];
stream->rOff++;
return c;
}
int
StreamUngetc(Stream * stream, int c)
{
if (!stream)
{
errno = EBADF;
return EOF;
}
if (!stream->ugBuf)
{
stream->ugSize = IO_BUFFER;
stream->ugBuf = Malloc(stream->ugSize);
if (!stream->ugBuf)
{
stream->flags |= STREAM_ERR;
return EOF;
}
}
if (stream->ugLen >= stream->ugSize)
{
char *new;
stream->ugSize += IO_BUFFER;
new = Realloc(stream->ugBuf, stream->ugSize);
if (!new)
{
stream->flags |= STREAM_ERR;
Free(stream->ugBuf);
stream->ugBuf = NULL;
return EOF;
}
Free(stream->ugBuf);
stream->ugBuf = new;
}
stream->ugBuf[stream->ugLen] = c;
stream->ugLen++;
return c;
}
int
StreamPutc(Stream * stream, int c)
{
if (!stream)
{
errno = EBADF;
return EOF;
}
if (!stream->wBuf)
{
stream->wBuf = Malloc(IO_BUFFER);
if (!stream->wBuf)
{
stream->flags |= STREAM_ERR;
return EOF;
}
}
if (stream->wLen == IO_BUFFER)
{
/* Buffer full; write it */
ssize_t writeRes = IoWrite(stream->io, stream->wBuf, stream->wLen);
if (writeRes == -1)
{
stream->flags |= STREAM_ERR;
return EOF;
}
stream->wLen = 0;
}
stream->wBuf[stream->wLen] = c;
stream->wLen++;
if (stream->flags & STREAM_TTY && c == '\n')
{
/* Newline encountered on a TTY; write now. This fixes some
* strange behavior on certain TTYs where a newline is written
* to the screen upon flush even when no newline exists in the
* stream. We just flush on newlines, but only if we're
* directly writing to a TTY. */
ssize_t writeRes = IoWrite(stream->io, stream->wBuf, stream->wLen);
if (writeRes == -1)
{
stream->flags |= STREAM_ERR;
return EOF;
}
stream->wLen = 0;
}
return c;
}
int
StreamPuts(Stream * stream, char *str)
{
int ret = 0;
if (!stream)
{
errno = EBADF;
return -1;
}
while (*str)
{
if (StreamPutc(stream, *str) == EOF)
{
ret = -1;
break;
}
str++;
}
return ret;
}
char *
StreamGets(Stream * stream, char *str, int size)
{
int i;
if (!stream)
{
errno = EBADF;
return NULL;
}
if (size <= 0)
{
errno = EINVAL;
return NULL;
}
for (i = 0; i < size - 1; i++)
{
int c = StreamGetc(stream);
if (StreamEof(stream) || StreamError(stream))
{
break;
}
str[i] = c;
if (c == '\n')
{
i++;
break;
}
}
str[i] = '\0';
return str;
}
off_t
StreamSeek(Stream * stream, off_t offset, int whence)
{
off_t result;
if (!stream)
{
errno = EBADF;
return -1;
}
result = IoSeek(stream->io, offset, whence);
if (result < 0)
{
return result;
}
/* Successful seek; clear the buffers */
stream->rOff = 0;
stream->wLen = 0;
stream->ugLen = 0;
return result;
}
int
StreamEof(Stream * stream)
{
return stream && (stream->flags & STREAM_EOF);
}
int
StreamError(Stream * stream)
{
return stream && (stream->flags & STREAM_ERR);
}
void
StreamClearError(Stream * stream)
{
if (stream)
{
stream->flags &= ~STREAM_ERR;
}
}
int
StreamFlush(Stream * stream)
{
if (!stream)
{
errno = EBADF;
return EOF;
}
if (stream->wLen)
{
ssize_t writeRes = IoWrite(stream->io, stream->wBuf, stream->wLen);
if (writeRes == -1)
{
stream->flags |= STREAM_ERR;
return EOF;
}
stream->wLen = 0;
}
return 0;
}
ssize_t
StreamCopy(Stream * in, Stream * out)
{
ssize_t nBytes = 0;
int c;
int tries = 0;
int readFlg = 0;
while (1)
{
c = StreamGetc(in);
if (StreamEof(in))
{
break;
}
if (StreamError(in))
{
if (errno == EAGAIN)
{
StreamClearError(in);
tries++;
if (tries >= STREAM_RETRIES || readFlg)
{
break;
}
else
{
UtilSleepMillis(STREAM_DELAY);
continue;
}
}
else
{
break;
}
}
/* As soon as we've successfully read a byte, treat future
* EAGAINs as EOF, because somebody might have forgotten to
* close their stream. */
readFlg = 1;
tries = 0;
StreamPutc(out, c);
nBytes++;
}
StreamFlush(out);
return nBytes;
}
int
StreamFileno(Stream * stream)
{
return stream ? stream->fd : -1;
}

85
src/Tls.c
View File

@ -1,85 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Tls.h>
#ifdef TLS_IMPL
#include <Io.h>
#include <Stream.h>
Stream *
TlsClientStream(int fd, const char *serverName)
{
Io *io;
void *cookie;
IoFunctions funcs;
cookie = TlsInitClient(fd, serverName);
if (!cookie)
{
return NULL;
}
funcs.read = TlsRead;
funcs.write = TlsWrite;
funcs.seek = NULL;
funcs.close = TlsClose;
io = IoCreate(cookie, funcs);
if (!io)
{
return NULL;
}
return StreamIo(io);
}
Stream *
TlsServerStream(int fd, const char *crt, const char *key)
{
Io *io;
void *cookie;
IoFunctions funcs;
cookie = TlsInitServer(fd, crt, key);
if (!cookie)
{
return NULL;
}
funcs.read = TlsRead;
funcs.write = TlsWrite;
funcs.seek = NULL;
funcs.close = TlsClose;
io = IoCreate(cookie, funcs);
if (!io)
{
return NULL;
}
return StreamIo(io);
}
#endif

247
src/Tls/TlsLibreSSL.c
View File

@ -1,247 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Tls.h>
#if TLS_IMPL == TLS_LIBRESSL
#include <Memory.h>
#include <Log.h>
#include <errno.h>
#include <tls.h> /* LibreSSL TLS */
typedef struct LibreSSLCookie
{
int fd;
struct tls *ctx;
struct tls *cctx;
struct tls_config *cfg;
} LibreSSLCookie;
void *
TlsInitClient(int fd, const char *serverName)
{
LibreSSLCookie *cookie = Malloc(sizeof(LibreSSLCookie));
if (!cookie)
{
return NULL;
}
cookie->ctx = tls_client();
cookie->cctx = NULL;
cookie->cfg = tls_config_new();
cookie->fd = fd;
if (!cookie->ctx || !cookie->cfg)
{
goto error;
}
if (tls_config_set_ca_file(cookie->cfg, tls_default_ca_cert_file()) == -1)
{
goto error;
}
if (tls_configure(cookie->ctx, cookie->cfg) == -1)
{
goto error;
}
if (tls_connect_socket(cookie->ctx, fd, serverName) == -1)
{
goto error;
}
if (tls_handshake(cookie->ctx) == -1)
{
goto error;
}
return cookie;
error:
if (cookie->ctx)
{
if (tls_error(cookie->ctx))
{
Log(LOG_ERR, "TlsInitClient(): %s", tls_error(cookie->ctx));
}
tls_free(cookie->ctx);
}
if (cookie->cfg)
{
tls_config_free(cookie->cfg);
}
Free(cookie);
return NULL;
}
void *
TlsInitServer(int fd, const char *crt, const char *key)
{
LibreSSLCookie *cookie = Malloc(sizeof(LibreSSLCookie));
if (!cookie)
{
return NULL;
}
cookie->ctx = tls_server();
cookie->cctx = NULL;
cookie->cfg = tls_config_new();
cookie->fd = fd;
if (!cookie->ctx || !cookie->cfg)
{
goto error;
}
if (tls_config_set_cert_file(cookie->cfg, crt) == -1)
{
goto error;
}
if (tls_config_set_key_file(cookie->cfg, key) == -1)
{
goto error;
}
if (tls_configure(cookie->ctx, cookie->cfg) == -1)
{
goto error;
}
if (tls_accept_fds(cookie->ctx, &cookie->cctx, fd, fd) == -1)
{
goto error;
}
if (tls_handshake(cookie->cctx) == -1)
{
goto error;
}
return cookie;
error:
if (cookie->ctx)
{
if (tls_error(cookie->ctx))
{
Log(LOG_ERR, "TlsInitServer(): %s", tls_error(cookie->ctx));
}
tls_free(cookie->ctx);
}
if (cookie->cctx)
{
if (tls_error(cookie->cctx))
{
Log(LOG_ERR, "TlsInitServer(): %s", tls_error(cookie->cctx));
}
tls_free(cookie->cctx);
}
if (cookie->cfg)
{
tls_config_free(cookie->cfg);
}
Free(cookie);
return NULL;
}
ssize_t
TlsRead(void *cookie, void *buf, size_t nBytes)
{
LibreSSLCookie *tls = cookie;
struct tls *ctx = tls->cctx ? tls->cctx : tls->ctx;
ssize_t ret = tls_read(ctx, buf, nBytes);
if (ret == -1)
{
errno = EIO;
}
else if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT)
{
errno = EAGAIN;
ret = -1;
}
return ret;
}
ssize_t
TlsWrite(void *cookie, void *buf, size_t nBytes)
{
LibreSSLCookie *tls = cookie;
struct tls *ctx = tls->cctx ? tls->cctx : tls->ctx;
ssize_t ret = tls_write(ctx, buf, nBytes);
if (ret == -1)
{
errno = EIO;
}
else if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT)
{
errno = EAGAIN;
ret = -1;
}
return ret;
}
int
TlsClose(void *cookie)
{
LibreSSLCookie *tls = cookie;
int tlsRet = tls_close(tls->cctx ? tls->cctx : tls->ctx);
int sdRet;
if (tls->cctx)
{
tls_free(tls->cctx);
}
tls_free(tls->ctx);
tls_config_free(tls->cfg);
sdRet = close(tls->fd);
Free(tls);
return (tlsRet == -1 || sdRet == -1) ? -1 : 0;
}
#endif

296
src/Tls/TlsOpenSSL.c
View File

@ -1,296 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Tls.h>
#if TLS_IMPL == TLS_OPENSSL
#include <Memory.h>
#include <Log.h>
#include <string.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
typedef struct OpenSSLCookie
{
int fd;
const SSL_METHOD *method;
SSL_CTX *ctx;
SSL *ssl;
} OpenSSLCookie;
static char *
SSLErrorString(int err)
{
switch (err)
{
case SSL_ERROR_NONE:
return "No error.";
case SSL_ERROR_ZERO_RETURN:
return "The TLS/SSL connection has been closed.";
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_WANT_ACCEPT:
return "The operation did not complete.";
case SSL_ERROR_WANT_X509_LOOKUP:
return "X509 lookup failed.";
case SSL_ERROR_SYSCALL:
return "I/O Error.";
case SSL_ERROR_SSL:
return "SSL library error.";
}
return NULL;
}
void *
TlsInitClient(int fd, const char *serverName)
{
OpenSSLCookie *cookie;
char errorStr[256];
/*
* TODO: Seems odd that this isn't needed to make the
* connection... we should figure out how to verify the
* certificate matches the server we think we're
* connecting to.
*/
(void) serverName;
cookie = Malloc(sizeof(OpenSSLCookie));
if (!cookie)
{
return NULL;
}
memset(cookie, 0, sizeof(OpenSSLCookie));
cookie->method = TLS_client_method();
cookie->ctx = SSL_CTX_new(cookie->method);
if (!cookie->ctx)
{
goto error;
}
cookie->ssl = SSL_new(cookie->ctx);
if (!cookie->ssl)
{
goto error;
}
if (!SSL_set_fd(cookie->ssl, fd))
{
goto error;
}
if (SSL_connect(cookie->ssl) <= 0)
{
goto error;
}
return cookie;
error:
Log(LOG_ERR, "TlsClientInit(): %s", ERR_error_string(ERR_get_error(), errorStr));
if (cookie->ssl)
{
SSL_shutdown(cookie->ssl);
SSL_free(cookie->ssl);
}
close(cookie->fd);
if (cookie->ctx)
{
SSL_CTX_free(cookie->ctx);
}
return NULL;
}
void *
TlsInitServer(int fd, const char *crt, const char *key)
{
OpenSSLCookie *cookie;
char errorStr[256];
int acceptRet = 0;
cookie = Malloc(sizeof(OpenSSLCookie));
if (!cookie)
{
return NULL;
}
memset(cookie, 0, sizeof(OpenSSLCookie));
cookie->method = TLS_server_method();
cookie->ctx = SSL_CTX_new(cookie->method);
if (!cookie->ctx)
{
Log(LOG_ERR, "TlsInitServer(): Unable to create SSL Context.");
goto error;
}
if (SSL_CTX_use_certificate_file(cookie->ctx, crt, SSL_FILETYPE_PEM) <= 0)
{
Log(LOG_ERR, "TlsInitServer(): Unable to set certificate file: %s", crt);
goto error;
}
if (SSL_CTX_use_PrivateKey_file(cookie->ctx, key, SSL_FILETYPE_PEM) <= 0)
{
Log(LOG_ERR, "TlsInitServer(): Unable to set key file.");
goto error;
}
cookie->ssl = SSL_new(cookie->ctx);
if (!cookie->ssl)
{
Log(LOG_ERR, "TlsInitServer(): Unable to create SSL object.");
goto error;
}
if (!SSL_set_fd(cookie->ssl, fd))
{
Log(LOG_ERR, "TlsInitServer(): Unable to set file descriptor.");
goto error;
}
while ((acceptRet = SSL_accept(cookie->ssl)) <= 0)
{
switch (SSL_get_error(cookie->ssl, acceptRet))
{
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_WANT_ACCEPT:
continue;
default:
Log(LOG_ERR, "TlsInitServer(): Unable to accept connection.");
goto error;
}
}
return cookie;
error:
Log(LOG_ERR, "TlsServerInit(): %s", SSLErrorString(SSL_get_error(cookie->ssl, acceptRet)));
Log(LOG_ERR, "TlsServerInit(): %s", ERR_error_string(ERR_get_error(), errorStr));
if (cookie->ssl)
{
SSL_shutdown(cookie->ssl);
SSL_free(cookie->ssl);
}
close(cookie->fd);
if (cookie->ctx)
{
SSL_CTX_free(cookie->ctx);
}
Free(cookie);
return NULL;
}
ssize_t
TlsRead(void *cookie, void *buf, size_t nBytes)
{
OpenSSLCookie *ssl = cookie;
int ret = SSL_read(ssl->ssl, buf, nBytes);
if (ret <= 0)
{
switch (SSL_get_error(ssl->ssl, ret))
{
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_WANT_ACCEPT:
case SSL_ERROR_WANT_X509_LOOKUP:
errno = EAGAIN;
break;
case SSL_ERROR_ZERO_RETURN:
ret = 0;
break;
default:
errno = EIO;
break;
}
ret = -1;
}
return ret;
}
ssize_t
TlsWrite(void *cookie, void *buf, size_t nBytes)
{
OpenSSLCookie *ssl = cookie;
int ret = SSL_write(ssl->ssl, buf, nBytes);
if (ret <= 0)
{
switch (SSL_get_error(ssl->ssl, ret))
{
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
case SSL_ERROR_WANT_CONNECT:
case SSL_ERROR_WANT_ACCEPT:
case SSL_ERROR_WANT_X509_LOOKUP:
errno = EAGAIN;
break;
case SSL_ERROR_ZERO_RETURN:
ret = 0;
break;
default:
errno = EIO;
break;
}
ret = -1;
}
return ret;
}
int
TlsClose(void *cookie)
{
OpenSSLCookie *ssl = cookie;
SSL_shutdown(ssl->ssl);
SSL_free(ssl->ssl);
close(ssl->fd);
SSL_CTX_free(ssl->ctx);
Free(ssl);
return 0;
}
#endif

73
src/Uri.c
View File

@ -1,73 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Uri.h>
#include <stdio.h>
#include <string.h>
#include <Memory.h>
Uri *
UriParse(const char *str)
{
Uri *uri;
int res;
if (!str)
{
return NULL;
}
uri = Malloc(sizeof(Uri));
if (!uri)
{
return NULL;
}
memset(uri, 0, sizeof(Uri));
res = sscanf(str, "%7[^:]://%127[^:]:%hu%255[^\n]", uri->proto, uri->host, &uri->port, uri->path) == 4
|| sscanf(str, "%7[^:]://%127[^/]%255[^\n]", uri->proto, uri->host, uri->path) == 3
|| sscanf(str, "%7[^:]://%127[^:]:%hu[^\n]", uri->proto, uri->host, &uri->port) == 3
|| sscanf(str, "%7[^:]://%127[^\n]", uri->proto, uri->host) == 2;
if (!res)
{
Free(uri);
return NULL;
}
if (!uri->path[0])
{
strcpy(uri->path, "/");
}
return uri;
}
void
UriFree(Uri * uri)
{
Free(uri);
}

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src/Util.c
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Util.h>
#include <Memory.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <limits.h>
#include <pthread.h>
#ifndef PATH_MAX
#define PATH_MAX 256
#endif
#ifndef SSIZE_MAX
#define SSIZE_MAX LONG_MAX
#endif
unsigned long
UtilServerTs(void)
{
struct timeval tv;
unsigned long ts;
gettimeofday(&tv, NULL);
ts = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
return ts;
}
unsigned long
UtilLastModified(char *path)
{
struct stat st;
unsigned long ts;
if (stat(path, &st) == 0)
{
ts = (st.st_mtim.tv_sec * 1000) + (st.st_mtim.tv_nsec / 1000000);
return ts;
}
else
{
return 0;
}
}
int
UtilMkdir(const char *dir, const mode_t mode)
{
char tmp[PATH_MAX];
char *p = NULL;
struct stat st;
size_t len;
len = strnlen(dir, PATH_MAX);
if (!len || len == PATH_MAX)
{
errno = ENAMETOOLONG;
return -1;
}
memcpy(tmp, dir, len);
tmp[len] = '\0';
if (tmp[len - 1] == '/')
{
tmp[len - 1] = '\0';
}
if (stat(tmp, &st) == 0 && S_ISDIR(st.st_mode))
{
return 0;
}
for (p = tmp + 1; *p; p++)
{
if (*p == '/')
{
*p = 0;
if (stat(tmp, &st) != 0)
{
if (mkdir(tmp, mode) < 0)
{
/* errno already set by mkdir() */
return -1;
}
}
else if (!S_ISDIR(st.st_mode))
{
errno = ENOTDIR;
return -1;
}
*p = '/';
}
}
if (stat(tmp, &st) != 0)
{
if (mkdir(tmp, mode) < 0)
{
/* errno already set by mkdir() */
return -1;
}
}
else if (!S_ISDIR(st.st_mode))
{
errno = ENOTDIR;
return -1;
}
return 0;
}
int
UtilSleepMillis(long ms)
{
struct timespec ts;
int res;
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000000;
res = nanosleep(&ts, &ts);
return res;
}
ssize_t
UtilGetDelim(char **linePtr, size_t * n, int delim, Stream * stream)
{
char *curPos, *newLinePtr;
size_t newLinePtrLen;
int c;
if (!linePtr || !n || !stream)
{
errno = EINVAL;
return -1;
}
if (*linePtr == NULL)
{
*n = 128;
if (!(*linePtr = Malloc(*n)))
{
errno = ENOMEM;
return -1;
}
}
curPos = *linePtr;
while (1)
{
c = StreamGetc(stream);
if (StreamError(stream) || (c == EOF && curPos == *linePtr))
{
return -1;
}
if (c == EOF)
{
break;
}
if ((*linePtr + *n - curPos) < 2)
{
if (SSIZE_MAX / 2 < *n)
{
#ifdef EOVERFLOW
errno = EOVERFLOW;
#else
errno = ERANGE;
#endif
return -1;
}
newLinePtrLen = *n * 2;
if (!(newLinePtr = Realloc(*linePtr, newLinePtrLen)))
{
errno = ENOMEM;
return -1;
}
curPos = newLinePtr + (curPos - *linePtr);
*linePtr = newLinePtr;
*n = newLinePtrLen;
}
*curPos++ = (char) c;
if (c == delim)
{
break;
}
}
*curPos = '\0';
return (ssize_t) (curPos - *linePtr);
}
ssize_t
UtilGetLine(char **linePtr, size_t * n, Stream * stream)
{
return UtilGetDelim(linePtr, n, '\n', stream);
}

164
src/include/Array.h
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_ARRAY_H
#define TELODENDRIA_ARRAY_H
/***
* @Nm Array
* @Nd A simple dynamic array data structure.
* @Dd November 24 2022
* @Xr HashMap Queue
*
* These functions implement a simple array data structure that is
* automatically resized as necessary when new values are added. This
* implementation does not actually store the values of the items in it;
* it only stores pointers to the data. As such, you will still have to
* manually maintain all your data. The advantage of this is that these
* functions don't have to copy data, and thus don't care how big the
* data is. Furthermore, arbitrary data can be stored in the array.
* .Pp
* This array implementation is optimized for storage space and
* appending. Deletions are expensive in that all the items of the list
* above a deletion are moved down to fill the hole where the deletion
* occurred. Insertions are also expensive in that all the elements
* above the given index must be shifted up to make room for the new
* element.
* .Pp
* Due to these design choices, this array implementation is best
* suited to linear writing, and then linear or random reading.
*/
#include <stddef.h>
#include <stdarg.h>
/**
* The functions in this API operate on an array structure which is
* opaque to the caller.
*/
typedef struct Array Array;
/**
* Allocate a new array. This function returns a pointer that can be
* used with the other functions in this API, or NULL if there was an
* error allocating memory for the array.
*/
extern Array * ArrayCreate(void);
/**
* Deallocate an array. Note that this function does not free any of
* the values stored in the array; it is the caller's job to manage the
* memory for each item. Typically, the caller would iterate over all
* the items in the array and free them before freeing the array.
*/
extern void ArrayFree(Array *);
/**
* Get the size, in number of elements, of the given array.
*/
extern size_t ArraySize(Array *);
/**
* Get the element at the specified index from the specified array.
* This function will return NULL if the array is NULL, or the index
* is out of bounds. Otherwise, it will return a pointer to a value
* put into the array using
* .Fn ArrayInsert
* or
* .Fn ArraySet .
*/
extern void * ArrayGet(Array *, size_t);
/**
* Insert the specified element at the specified index in the specified
* array. This function will shift the element currently at that index,
* and any elements after it before inserting the given element.
* .Pp
* This function returns a boolean value indicating whether or not it
* suceeded.
*/
extern int ArrayInsert(Array *, size_t, void *);
/**
* Set the value at the specified index in the specified array to the
* specified value. This function will return the old value at that
* index, if any.
*/
extern void * ArraySet(Array *, size_t, void *);
/**
* Append the specified element to the end of the specified array. This
* function uses
* .Fn ArrayInsert
* under the hood to insert an element at the end. It thus has the same
* return value as
* .Fn ArrayInsert .
*/
extern int ArrayAdd(Array *, void *);
/**
* Remove the element at the specified index from the specified array.
* This function returns the element removed, if any.
*/
extern void * ArrayDelete(Array *, size_t);
/**
* Sort the specified array using the specified sort function. The
* sort function compares two elements. It takes two void pointers as
* parameters, and returns an integer. The return value indicates to
* the sorting algorithm how the elements relate to each other. A
* return value of 0 indicates that the elements are identical. A
* return value greater than 0 indicates that the first item is
* ``bigger'' than the second item and should thus appear after it in
* the array. A return value less than 0 indicates the opposite: the
* second element should appear after the first in the array.
*/
extern void ArraySort(Array *, int (*) (void *, void *));
/**
* If possible, reduce the amount of memory allocated to this array
* by calling
* .Fn Realloc
* on the internal structure to perfectly fit the elements in the
* array. This function is intended to be used by functions that return
* relatively read-only arrays that will be long-lived.
*/
extern int ArrayTrim(Array *);
/**
* Convert a variadic arguments list into an Array. In most cases, the
* Array API is much easier to work with than
* .Fn va_arg
* and friends.
*/
extern Array * ArrayFromVarArgs(size_t, va_list);
/**
* Duplicate an existing array. Note that arrays only hold pointers to
* their data, not the data itself, so the duplicated array will point
* to the same places in memory as the original array.
*/
extern Array * ArrayDuplicate(Array *);
#endif /* TELODENDRIA_ARRAY_H */

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src/include/Base64.h
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_BASE64_H
#define TELODENDRIA_BASE64_H
/***
* @Nm Base64
* @Nd A simple base64 encoder/decoder with unpadded base64 support.
* @Dd September 30 2022
* @Xr Sha2
*
* This is an efficient yet simple base64 encoding and decoding API
* that supports regular base64, as well as the Matrix specification's
* extension to base64, called ``unpadded base64.'' This API provides
* the ability to convert between the two, instead of just implementing
* unpadded base64.
*/
#include <stddef.h>
/**
* This function computes the amount of bytes needed to store a message
* of the specified number of bytes as base64.
*/
extern size_t
Base64EncodedSize(size_t);
/**
* This function computes the amount of bytes needed to store a decoded
* representation of the encoded message. It takes a pointer to the
* encoded string because it must read a few bytes off the end in order
* to accurately compute the size.
*/
extern size_t
Base64DecodedSize(const char *, size_t);
/**
* Encode the specified number of bytes from the specified buffer as
* base64. This function returns a string on the heap that should be
* freed with
* .Fn Free ,
* or NULL if a memory allocation error ocurred.
*/
extern char *
Base64Encode(const char *, size_t);
/**
* Decode the specified number of bytes from the specified buffer of
* base64. This function returns a string on the heap that should be
* freed with
* .Fn Free ,
* or NULL if a memory allocation error occured.
*/
extern char *
Base64Decode(const char *, size_t);
/**
* Remove the padding from a specified base64 string. This function
* modifies the specified string in place. It thus has no return value
* because it cannot fail. If the passed pointer is invalid, the
* behavior is undefined.
*/
extern void
Base64Unpad(char *, size_t);
/**
* Add padding to an unpadded base64 string. This function takes a
* pointer to a pointer because it may be necessary to grow the memory
* allocated to the string. This function returns a boolean value
* indicating whether the pad operation was successful. In practice,
* this means it will only fail if a bigger string is necessary, but it
* could not be automatically allocated on the heap.
*/
extern int
Base64Pad(char **, size_t);
#endif /* TELODENDRIA_BASE64_H */

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src/include/Cron.h
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_CRON_H
#define TELODENDRIA_CRON_H
/***
* @Nm Cron
* @Nd Basic periodic job scheduler.
* @Dd December 24 2022
*
* This is an extremely basic job scheduler. So basic, in fact, that
* it currently runs all jobs on a single thread, which means that it
* is intended for short-lived jobs. In the future, it might be
* extended to support a one-thread-per-job model, but for now, jobs
* should take into consideration the fact that they are sharing their
* thread, so they should not be long-running.
* .Pp
* .Nm
* works by ``ticking'' at an interval defined by the caller of
* .Fn CronCreate .
* At each tick, all the registered jobs are queried, and if they are
* due to run again, their function is executed. As much as possible,
* .Nm
* tries to tick at constant intervals, however it is possible that one
* or more jobs may overrun the tick duration. If this happens,
* .Nm
* ticks again immediately after all the jobs for the previous tick
* have completed. This is in an effort to compensate for lost time,
* however it is important to note that when jobs overrun the tick
* interval, the interval is pushed back by the amount that it was
* overrun. Because of this,
* .Nm
* is best suited for scheduling jobs that should happen
* ``aproximately'' every so often; it is not a real-time scheduler
* by any means.
*/
/**
* All functions defined here operate on a structure opaque to the
* caller.
*/
typedef struct Cron Cron;
/**
* A job function is a function that takes a void pointer and returns
* nothing. The pointer is passed when the job is scheduled, and
* is expected to remain valid until the job is no longer registered.
* The pointer is passed each time the job executes.
*/
typedef void (JobFunc) (void *);
/**
* Create a new
* .Nm
* object that all other functions operate on. Like most of the other
* APIs in this project, it must be freed with
* .Fn CronFree
* when it is no longer needed.
* .Pp
* This function takes the tick interval in milliseconds.
*/
extern Cron *
CronCreate(unsigned long);
/**
* Schedule a one-off job to be executed only at the next tick, and
* then immediately discarded. This is useful for scheduling tasks that
* only have to happen once, or very infrequently depending on
* conditions other than the current time, but don't have to happen
* immediately. The caller simply indicates that it wishes for the task
* to execute at some time in the future. How far into the future this
* practically ends up being is determined by how long it takes for
* other registered jobs to finish, and what the tick interval is.
* .Pp
* This function takes a job function and a pointer to pass to that
* function when it is executed.
*/
extern void
CronOnce(Cron *, JobFunc *, void *);
/**
* Schedule a repetitive task to be executed at aproximately the given
* interval. As stated above, this is as fuzzy interval; depending on
* the jobs being run and the tick interval, tasks may not execute at
* exactly the scheduled time, but they will eventually execute.
* .Pp
* This function takes an interval in milliseconds, a job function,
* and a pointer to pass to that function when it is executed.
*/
extern void
CronEvery(Cron *, unsigned long, JobFunc *, void *);
/**
* Start ticking the clock and executing registered jobs.
*/
extern void
CronStart(Cron *);
/**
* Stop ticking the clock. Jobs that are already executing will
* continue to execute, but when they are finished, no new jobs will
* be executed until
* .Fn CronStart
* is called.
*/
extern void
CronStop(Cron *);
/**
* Discard all job references and free all memory associated with the
* given
* .Nm Cron
* instance.
*/
extern void
CronFree(Cron *);
#endif /* TELODENDRIA_CRON_H */

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src/include/Db.h
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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_DB_H
#define TELODENDRIA_DB_H
/***
* @Nm Db
* @Nd A minimal flat-file database with mutex locking and cache.
* @Dd April 27 2023
* @Xr Json
*
* Telodendria operates on a flat-file database instead of a
* traditional relational database. This greatly simplifies the
* persistent storage code, and creates a relatively basic API,
* described here.
*/
#include <stddef.h>
#include <HashMap.h>
#include <Array.h>
/**
* All functions in this API operate on a database structure that is
* opaque to the caller.
*/
typedef struct Db Db;
/**
* When an object is locked, a reference is returned. This reference
* is owned by the current thread, and the database is inaccessible to
* other threads until all references have been returned to the
* database.
* .Pp
* This reference is opaque, but can be manipulated by the functions
* defined here.
*/
typedef struct DbRef DbRef;
/**
* Open a data directory. This function takes a path to open, and a
* cache size in bytes. If the cache size is 0, then caching is
* disabled and objects are loaded off the disk every time they are
* locked. Otherwise, objects are stored in the cache, and they are
* evicted in a least-recently-used manner.
*/
extern Db * DbOpen(char *, size_t);
/**
* Close the database. This function will flush anything in the cache
* to the disk, and then close the data directory. It assumes that
* all references have been unlocked. If a reference has not been
* unlocked, undefined behavior results.
*/
extern void DbClose(Db *);
/**
* Set the maximum cache size allowed before
* .Nm
* starts evicting old objects. If this is set to 0, everything in the
* cache is immediately evicted and caching is disabled. If the
* database was opened with a cache size of 0, setting this will
* initialize the cache, and subsequent calls to
* .Fn DbLock
* will begin caching objects.
*/
extern void DbMaxCacheSet(Db *, size_t);
/**
* Create a new object in the database with the specified name. This
* function will fail if the object already exists in the database. It
* takes a variable number of C strings, with the exact number being
* specified by the second parameter. These C strings are used to
* generate a filesystem path at which to store the object. These paths
* ensure each object is uniquely identifiable, and provides semantic
* meaning to an object.
*/
extern DbRef * DbCreate(Db *, size_t,...);
/**
* Lock an existing object in the database. This function will fail
* if the object does not exist. It takes a variable number of C
* strings, with the exact number being specified by the second
* parameter. These C strings are used to generate the filesystem path
* at which to load the object. These paths ensure each object is
* uniquely identifiable, and provides semantic meaning to an object.
*/
extern DbRef * DbLock(Db *, size_t,...);
/**
* Immediately and permanently remove an object from the database.
* This function assumes the object is not locked, otherwise undefined
* behavior will result.
*/
extern int DbDelete(Db *, size_t,...);
/**
* Unlock an object and return it back to the database. This function
* immediately syncs the object to the filesystem. The cache is a
* read cache; writes are always immediate to ensure data integrity in
* the event of a system failure.
*/
extern int DbUnlock(Db *, DbRef *);
/**
* Check the existence of the given database object in a more efficient
* manner than attempting to lock it with
* .Fn DbLock .
* This function does not lock the object, nor does it load it into
* memory if it exists.
*/
extern int DbExists(Db *, size_t,...);
/**
* List all of the objects at a given path. Unlike the other varargs
* functions, this one does not take a path to a specific object; it
* takes a directory to be iterated, where each path part is its own
* C string. Note that the resulting list only contains the objects
* in the specified directory, it does not list any subdirectories.
* .Pp
* The array returned is an array of C strings containing the object
* name.
*/
extern Array * DbList(Db *, size_t,...);
/**
* Free the list returned by
* .Fn DbListFree .
*/
extern void DbListFree(Array *);
/**
* Convert a database reference into JSON that can be manipulated.
* At this time, the database actually stores objects as JSON on the
* disk, so this function just returns an internal pointer, but in the
* future it may have to be generated by decompressing a binary blob,
* or something of that nature.
*/
extern HashMap * DbJson(DbRef *);
/**
* Free the existing JSON associated with the given reference, and
* replace it with new JSON. This is more efficient than duplicating
* a separate object into the database reference.
*/
extern int DbJsonSet(DbRef *, HashMap *);
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HASHMAP_H
#define TELODENDRIA_HASHMAP_H
/***
* @Nm HashMap
* @Nd A simple hash map implementation.
* @Dd October 11 2022
* @Xr Array Queue
*
* This is the public interface for Telodendria's hash map
* implementation. This hash map is designed to be simple,
* well-documented, and generally readable and understandable, yet also
* performant enough to be useful, because it is used extensively
* throughout the project.
* .Pp
* Fundamentally, this is an entirely generic map implementation. It
* can be used for many general purposes, but it is designed only to
* implement the features Telodendria needs to be functional. One
* example of a Telodendria-specific feature is that keys cannot be
* arbitrary data; they are NULL-terminated C strings.
*/
#include <stddef.h>
/**
* These functions operate on an opaque structure, which the caller
* has no knowledge about.
*/
typedef struct HashMap HashMap;
/**
* Create a new hash map that is ready to be used with the rest of the
* functions defined here.
*/
extern HashMap * HashMapCreate(void);
/**
* Free the specified hash map such that it becomes invalid and any
* future use results in undefined behavior. Note that this function
* does not free the values stored in the hash map, but since it stores
* the keys internally, it will free the keys. You should use
* .Fn HashMapIterate
* to free the values stored in this map appropriately before calling
* this function.
*/
extern void HashMapFree(HashMap *);
/**
* Control the maximum load of the hash map before it is expanded.
* When the hash map reaches the given capacity, it is grown. You
* don't want to only grow hash maps when they are full, because that
* makes them perform very poorly. The maximum load value is a
* percentage of how full the hash map is, and it should be between
* 0 and 1, where 0 means that no elements will cause the map to be
* expanded, and 1 means that the hash map must be completely full
* before it is expanded. The default maximum load on a new hash map
* is 0.75, which should be good enough for most purposes, however,
* this function exists specifically so that the maximum load can be
* fine-tuned.
*/
extern void HashMapMaxLoadSet(HashMap *, float);
/**
* Use a custom hashing function with the given hash map. New hash
* maps have a sane hashing function that should work okay for most
* use cases, but if you have a better hashing function, it can be
* specified this way. Do not change the hash function after keys have
* been added; doing so results in undefined behavior. Only set a new
* hash function immediately after constructing a new hash map, before
* anything has been added to it.
* .Pp
* The hash function takes a pointer to a C string, and is expected
* to return a fairly unique numerical hash value which will be
* converted into an array index.
*/
extern void
HashMapFunctionSet(HashMap *, unsigned long (*) (const char *));
/**
* Set the given string key to the given value. Note that the key is
* copied into the hash map's own memory space, but the value is not.
* It is the caller's job to ensure that the value pointer remains
* valid for the life of the hash map, and are freed when no longer
* needed.
*/
extern void * HashMapSet(HashMap *, char *, void *);
/**
* Retrieve the value for the given key, or return NULL if no such
* key exists in the hash map.
*/
extern void * HashMapGet(HashMap *, const char *);
/**
* Remove a value specified by the given key from the hash map, and
* return it to the caller to deal with. This function returns NULL
* if no such key exists.
*/
extern void * HashMapDelete(HashMap *, const char *);
/**
* Iterate over all the keys and values of a hash map. This function
* works very similarly to
* .Xr getopt 3 ,
* where calls are repeatedly made in a while loop until there are no
* more items to go over. The difference is that this function does not
* rely on globals; it takes pointer pointers, and stores all
* necessary state inside the hash map itself.
* .Pp
* Note that this function is not thread-safe; two threads cannot be
* iterating over any given hash map at the same time, though they
* can each be iterating over different hash maps.
* .Pp
* This function can be tricky to use in some scenarios, as it
* continues where it left off on each call, until there are no more
* elements to go through in the hash map. If you are not iterating
* over the entire map in one go, and happen to break the loop, then
* the next time you attempt to iterate the hash map, you'll start
* somewhere in the middle, which is most likely not the intended
* behavior. Thus, it is always recommended to iterate over the entire
* hash map if you're going to use this function.
* .Pp
* Also note that the behavior of this function is undefined if
* insertions or deletions occur during the iteration. This
* functionality has not been tested, and will likely not work.
*/
extern int HashMapIterate(HashMap *, char **, void **);
/**
* A reentrant version of
* .Fn HashMapIterate
* that allows the caller to overcome the flaws of that function by
* storing the cursor outside of the hash map structure itself. This
* allows multiple threads to iterate over the same hash map at the
* same time, and it allows the iteration to be halted midway through
* without causing any unintended side effects.
* .Pp
* The cursor should be initialized to 0 at the start of iteration.
*/
extern int
HashMapIterateReentrant(HashMap *, char **, void **, size_t *);
#endif /* TELODENDRIA_HASHMAP_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HEADERPARSER_H
#define TELODENDRIA_HEADERPARSER_H
/***
* @Nm HeaderParser
* @Nd Parse simple C header files.
* @Dd April 29 2023
*
* .Nm
* is an extremely simple parser that lacks most of the functionality
* one would expect from a C code parser. It simply maps a stream
* of tokens into a few categories, parsing major ``milestones'' in
* a header, without actually understanding any of the details.
* .Pp
* This exists because it is used to generate man pages from headers.
* See
* .Xr hdoc 1
* for example usage of this parser.
*/
#include <Stream.h>
#include <Array.h>
#define HEADER_EXPR_MAX 4096
/**
* Headers are parsed as expressions. These are the expressions that
* this parser recognizes.
*/
typedef enum HeaderExprType
{
HP_COMMENT,
HP_PREPROCESSOR_DIRECTIVE,
HP_TYPEDEF,
HP_DECLARATION,
HP_GLOBAL,
HP_UNKNOWN,
HP_SYNTAX_ERROR,
HP_PARSE_ERROR,
HP_EOF
} HeaderExprType;
/**
* A representation of a function declaration.
*/
typedef struct HeaderDeclaration
{
char returnType[64];
char name[32]; /* Enforced by ANSI C */
Array *args;
} HeaderDeclaration;
/**
* A global variable declaration. The type must be of the same size
* as the function declaration's return type due to the way parsing
* them is implemented.
*/
typedef struct HeaderGlobal
{
char type[64];
char name[HEADER_EXPR_MAX - 64];
} HeaderGlobal;
/**
* A representation of a single header expression. Note that that state
* structure is entirely internally managed, so it should not be
* accessed or manipulated by functions outside the functions defined
* here.
* .Pp
* The type field should be used to determine which field in the data
* union is valid.
*/
typedef struct HeaderExpr
{
HeaderExprType type;
union
{
char text[HEADER_EXPR_MAX];
HeaderDeclaration declaration;
HeaderGlobal global;
struct
{
int lineNo;
char *msg;
} error;
} data;
struct
{
Stream *stream;
int lineNo;
} state;
} HeaderExpr;
/**
* Parse the next expression into the given header expression structure.
* To parse an entire C header, this function should be called in a
* loop until the type of the expression is HP_EOF.
*/
extern void HeaderParse(Stream *, HeaderExpr *);
#endif /* TELODENDRIA_HEADERPARSER_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HTTP_H
#define TELODENDRIA_HTTP_H
/***
* @Nm Http
* @Nd Encode and decode various parts of the HTTP protocol.
* @Dd March 12 2023
* @Xr HttpClient HttpServer HashMap Queue Memory
*
* .Nm
* is a collection of utility functions and type definitions that are
* useful for dealing with HTTP. HTTP is not a complex protocol, but
* this API makes it a lot easier to work with.
* .Pp
* Note that this API doesn't target any particular HTTP version, but
* it is currently used with HTTP 1.0 clients and servers, and
* therefore may be lacking functionality added in later HTTP versions.
*/
#include <stdio.h>
#include <HashMap.h>
#include <Stream.h>
#define HTTP_FLAG_NONE 0
#define HTTP_FLAG_TLS (1 << 0)
/**
* The request methods defined by the HTTP standard. These numeric
* constants should be preferred to strings when building HTTP APIs
* because they are more efficient.
*/
typedef enum HttpRequestMethod
{
HTTP_METHOD_UNKNOWN,
HTTP_GET,
HTTP_HEAD,
HTTP_POST,
HTTP_PUT,
HTTP_DELETE,
HTTP_CONNECT,
HTTP_OPTIONS,
HTTP_TRACE,
HTTP_PATCH
} HttpRequestMethod;
/**
* An enumeration that corresponds to the actual integer values of the
* valid HTTP response codes.
*/
typedef enum HttpStatus
{
HTTP_STATUS_UNKNOWN = 0,
/* Informational responses */
HTTP_CONTINUE = 100,
HTTP_SWITCHING_PROTOCOLS = 101,
HTTP_EARLY_HINTS = 103,
/* Successful responses */
HTTP_OK = 200,
HTTP_CREATED = 201,
HTTP_ACCEPTED = 202,
HTTP_NON_AUTHORITATIVE_INFORMATION = 203,
HTTP_NO_CONTENT = 204,
HTTP_RESET_CONTENT = 205,
HTTP_PARTIAL_CONTENT = 206,
/* Redirection messages */
HTTP_MULTIPLE_CHOICES = 300,
HTTP_MOVED_PERMANENTLY = 301,
HTTP_FOUND = 302,
HTTP_SEE_OTHER = 303,
HTTP_NOT_MODIFIED = 304,
HTTP_TEMPORARY_REDIRECT = 307,
HTTP_PERMANENT_REDIRECT = 308,
/* Client error messages */
HTTP_BAD_REQUEST = 400,
HTTP_UNAUTHORIZED = 401,
HTTP_FORBIDDEN = 403,
HTTP_NOT_FOUND = 404,
HTTP_METHOD_NOT_ALLOWED = 405,
HTTP_NOT_ACCEPTABLE = 406,
HTTP_PROXY_AUTH_REQUIRED = 407,
HTTP_REQUEST_TIMEOUT = 408,
HTTP_CONFLICT = 409,
HTTP_GONE = 410,
HTTP_LENGTH_REQUIRED = 411,
HTTP_PRECONDITION_FAILED = 412,
HTTP_PAYLOAD_TOO_LARGE = 413,
HTTP_URI_TOO_LONG = 414,
HTTP_UNSUPPORTED_MEDIA_TYPE = 415,
HTTP_RANGE_NOT_SATISFIABLE = 416,
HTTP_EXPECTATION_FAILED = 417,
HTTP_TEAPOT = 418,
HTTP_UPGRADE_REQUIRED = 426,
HTTP_PRECONDITION_REQUIRED = 428,
HTTP_TOO_MANY_REQUESTS = 429,
HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
HTTP_UNAVAILABLE_FOR_LEGAL_REASONS = 451,
/* Server error responses */
HTTP_INTERNAL_SERVER_ERROR = 500,
HTTP_NOT_IMPLEMENTED = 501,
HTTP_BAD_GATEWAY = 502,
HTTP_SERVICE_UNAVAILABLE = 503,
HTTP_GATEWAY_TIMEOUT = 504,
HTTP_VERSION_NOT_SUPPORTED = 505,
HTTP_VARIANT_ALSO_NEGOTIATES = 506,
HTTP_NOT_EXTENDED = 510,
HTTP_NETWORK_AUTH_REQUIRED = 511
} HttpStatus;
/**
* Convert an HTTP status enumeration value into a string description
* of the status, which is to be used in server response to a client,
* or a client response to a user. For example, calling
* .Fn HttpStatusToString "HTTP_GATEWAY_TIMEOUT"
* (or
* .Fn HttpStatusToString "504" )
* produces the string "Gateway Timeout". Note that the returned
* pointers point to static space, so their manipulation is forbidden.
*/
extern const char * HttpStatusToString(const HttpStatus);
/**
* Convert a string into a numeric code that can be used throughout
* the code of a program in an efficient manner. See the definition
* of HttpRequestMethod. This function does case-sensitive matching,
* and does not trim or otherwise process the input string.
*/
extern HttpRequestMethod HttpRequestMethodFromString(const char *);
/**
* Convert a numeric code as defined by HttpRequestMethod into a
* string that can be sent to a server. Note that the returned pointers
* point to static space, so their manipulation is forbidden.
*/
extern const char * HttpRequestMethodToString(const HttpRequestMethod);
/**
* Encode a C string such that it can safely appear in a URL by
* performing the necessary percent escaping. A new string on the
* heap is returned. It should be freed with
* .Fn Free ,
* defined in the
* .Xr Memory 3
* API.
*/
extern char * HttpUrlEncode(char *);
/**
* Decode a percent-encoded string into a C string, ignoring encoded
* null characters entirely, because those would do nothing but cause
* problems.
*/
extern char * HttpUrlDecode(char *);
/**
* Decode an encoded parameter string in the form of
* ``key=val&key2=val2'' into a hash map whose values are C strings.
* This function properly decodes keys and values using the functions
* defined above.
*/
extern HashMap * HttpParamDecode(char *);
/**
* Encode a hash map whose values are strings as an HTTP parameter
* string suitable for GET or POST requests.
*/
extern char * HttpParamEncode(HashMap *);
/**
* Read HTTP headers from a stream and return a hash map whose values
* are strings. All keys are lowercased to make querying them
* consistent and not dependent on the case that was read from the
* stream. This is useful for both client and server code, since the
* headers are in the same format. This function should be used after
* parsing the HTTP status line, because it does not parse that line.
* It will stop when it encounters the first blank line, which
* indicates that the body is beginning. After this function completes,
* the body may be immediately read from the stream without any
* additional processing.
*/
extern HashMap * HttpParseHeaders(Stream *);
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HTTPCLIENT_H
#define TELODENDRIA_HTTPCLIENT_H
/***
* @Nm HttpClient
* @Nd Extremely simple HTTP client.
* @Dd April 29 2023
* @Xr Http HttpServer Tls
*
* .Nm
* HttpClient
* builds on the HTTP API to provide a simple yet functional HTTP
* client. It aims at being easy to use and minimal, yet also
* efficient.
*/
#include <stdio.h>
#include <HashMap.h>
#include <Http.h>
/**
* A server response is represented by a client context. It is
* opaque, so the functions defined in this API should be used to
* fetch data from and manipulate it.
*/
typedef struct HttpClientContext HttpClientContext;
/**
* Make an HTTP request. This function takes the request method,
* any flags defined in the HTTP API, the port, hostname, and path,
* all in that order. It returns NULL if there was an error making
* the request. Otherwise it returns a client context. Note that this
* function does not actually send any data, it simply makes the
* connection. Use
* .Fn HttpRequestHeader
* to add headers to the request. Then, send headers with
* .Fn HttpRequestSendHeaders .
* Finally, the request body, if any, can be written to the output
* stream, and then the request can be fully sent using
* .Fn HttpRequestSend .
*/
extern HttpClientContext *
HttpRequest(HttpRequestMethod, int, unsigned short, char *, char *);
/**
* Set a request header to send to the server when making the
* request.
*/
extern void HttpRequestHeader(HttpClientContext *, char *, char *);
/**
* Send the request headers to the server. This must be called before
* the request body can be written or a response body can be read.
*/
extern void HttpRequestSendHeaders(HttpClientContext *);
/**
* Flush the request stream to the server. This function should be
* called before the response body is read.
*/
extern HttpStatus HttpRequestSend(HttpClientContext *);
/**
* Get the headers returned by the server.
*/
extern HashMap * HttpResponseHeaders(HttpClientContext *);
/**
* Get the stream used to write the request body and read the
* response body.
*/
extern Stream * HttpClientStream(HttpClientContext *);
/**
* Free all memory associated with the client context. This closes the
* connection, if it was still open.
*/
extern void HttpClientContextFree(HttpClientContext *);
#endif /* TELODENDRIA_HTTPCLIENT_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HTTPROUTER_H
#define TELODENDRIA_HTTPROUTER_H
/***
* @Nm HttpRouter
* @Nd Simple HTTP request router with regular expression support.
* @Dd April 29 2023
* @Xr HttpServer Http
*
* .Nm
* provides a simple mechanism for assigning functions to an HTTP
* request path. It is a simple tree data structure that parses the
* registered request paths and maps functions onto each part of the
* path. Then, requests can be easily routed to their appropriate
* handler functions.
*/
#include <Array.h>
/**
* The router structure is opaque and thus managed entirely by the
* functions defined in this API.
*/
typedef struct HttpRouter HttpRouter;
/**
* A function written to handle an HTTP request takes an array
* consisting of the matched path parts in the order they appear in
* the path, and a pointer to caller-provided arguments, if any.
* It returns a pointer that the caller is assumed to know how to
* handle.
*/
typedef void *(HttpRouteFunc) (Array *, void *);
/**
* Create a new empty routing tree.
*/
extern HttpRouter * HttpRouterCreate(void);
/**
* Free all the memory associated with the given routing tree.
*/
extern void HttpRouterFree(HttpRouter *);
/**
* Register the specified route function to be executed upon requests
* for the specified HTTP path. The path is parsed by splitting at
* each path separator. Each part of the path is a regular expression
* that matches the entire path part. A regular expression cannot
* match more than one path part. This allows for paths like
* .Pa /some/path/(.*)/parts
* to work as one would expect.
*/
extern int HttpRouterAdd(HttpRouter *, char *, HttpRouteFunc *);
/**
* Route the specified request path using the specified routing
* tree. This function will parse the path and match it to the
* appropriate route handler function. The return value is a boolean
* value that indicates whether or not an appropriate route function
* was found. If an appropriate function was found, then the void
* pointer is passed to it as arguments that it is expected to know
* how to handle, and the pointer to a void pointer is where the
* route function's response will be placed.
*/
extern int HttpRouterRoute(HttpRouter *, char *, void *, void **);
#endif /* TELODENDRIA_HTTPROUTER_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_HTTPSERVER_H
#define TELODENDRIA_HTTPSERVER_H
/***
* @Nm HttpServer
* @Nd Extremely simple HTTP server.
* @Dd December 13 2022
* @Xr Http HttpClient
*
* .Nm
* builds on the
* .Xr Http 3
* API, and provides a very simple, yet very functional API for
* creating an HTTP server. It aims at being easy to use and minimal,
* yet also efficient. It uses non-blocking I/O, is fully
* multi-threaded, and is very configurable. It can be set up in just
* two function calls and minimal supporting code.
* .Pp
* This API should be familar to those that have dealt with the HTTP
* server libraries of other programming languages, particularly Java.
* In fact, much of the terminology used in this API came from Java,
* and you'll notice that the way responses are sent and received very
* closely resembles Java.
*/
#include <Http.h>
#include <stdio.h>
#include <HashMap.h>
#include <Stream.h>
/**
* The functions on this API operate on an opaque structure.
*/
typedef struct HttpServer HttpServer;
/**
* Each request receives a context structure. It is opaque, so the
* functions defined in this API should be used to fetch data from
* it. These functions allow the handler to figure out the context of
* the request, which includes the path requested, any parameters,
* and the headers and method used to make the request. The context
* also provides the means by which the handler responds to the
* request, allowing it to set the status code, headers, and body.
*/
typedef struct HttpServerContext HttpServerContext;
/**
* The request handler function is executed when an HTTP request is
* received. It takes a request context, and a pointer as specified
* in the server configuration.
*/
typedef void (HttpHandler) (HttpServerContext *, void *);
/**
* The number of arguments to
* .Fn HttpServerCreate
* has grown so large that arguments are now stuffed into a
* configuration structure, which is in turn passed to
* .Fn HttpServerCreate .
* This configuration is copied by value into the internal
* structures of the server. It is copied with very minimal
* validation, so ensure that all values are sensible. It may
* make sense to use
* .Fn memset
* to zero out everything in here before assigning values.
*/
typedef struct HttpServerConfig
{
unsigned short port;
unsigned int threads;
unsigned int maxConnections;
int flags; /* Http(3) flags */
char *tlsCert; /* File path */
char *tlsKey; /* File path */
HttpHandler *handler;
void *handlerArgs;
} HttpServerConfig;
/**
* Create a new HTTP server using the specified configuration.
* This will set up all internal structures used by the server,
* and bind the socket and start listening for connections. However,
* it will not start accepting connections.
*/
extern HttpServer * HttpServerCreate(HttpServerConfig *);
/**
* Retrieve the configuration that was used to instantiate the given
* server. Note that this configuration is not necessarily the exact
* one that was provided; even though its values are the same, it
* should be treated as an entirely separate configuration with no
* connection to the original.
*/
extern HttpServerConfig * HttpServerConfigGet(HttpServer *);
/**
* Free the resources associated with the given HTTP server. Note that
* the server can only be freed after it has been stopped. Calling this
* function while the server is still running results in undefined
* behavior.
*/
extern void HttpServerFree(HttpServer *);
/**
* Attempt to start the HTTP server, and return immediately with the
* status. This API is fully multi-threaded and asynchronous, so the
* caller can continue working while the HTTP server is running in a
* separate thread and managing a pool of threads to handle responses.
*/
extern int HttpServerStart(HttpServer *);
/**
* Typically, at some point after calling
* .Fn HttpServerStart ,
* the program will have no more work to do, so it will want to wait
* for the HTTP server to finish. This is accomplished via this
* function, which joins the HTTP worker thread to the calling thread,
* pausing the calling thread until the HTTP server has stopped.
*/
extern void HttpServerJoin(HttpServer *);
/**
* Stop the HTTP server. Only the execution of this function will
* cause the proper shutdown of the HTTP server. If the main program
* is joined to the HTTP thread, then either another thread or a
* signal handler will have to stop the server using this function.
* The typical use case is to install a signal handler that executes
* this function on a global HTTP server.
*/
extern void HttpServerStop(HttpServer *);
/**
* Get the request headers for the request represented by the given
* context. The data in the returned hash map should be treated as
* read only and should not be freed; it is managed entirely by the
* server.
*/
extern HashMap * HttpRequestHeaders(HttpServerContext *);
/**
* Get the request method used to make the request represented by
* the given context.
*/
extern HttpRequestMethod HttpRequestMethodGet(HttpServerContext *);
/**
* Get the request path for the request represented by the given
* context. The return value of this function should be treated as
* read-only, and should not be freed; it is managed entirely by the
* server.
*/
extern char * HttpRequestPath(HttpServerContext *);
/**
* Retrieve the parsed GET parameters for the request represented by
* the given context. The returned hash map should be treated as
* read-only, and should not be freed; it is managed entirely by the
* server.
*/
extern HashMap * HttpRequestParams(HttpServerContext *);
/**
* Set a response header to return to the client. The old value for
* the given header is returned, if any, otherwise NULL is returned.
*/
extern char * HttpResponseHeader(HttpServerContext *, char *, char *);
/**
* Set the response status to return to the client.
*/
extern void HttpResponseStatus(HttpServerContext *, HttpStatus);
/**
* Get the current response status that will be sent to the client
* making the request represented by the given context.
*/
extern HttpStatus HttpResponseStatusGet(HttpServerContext *);
/**
* Send the response headers to the client that made the request
* represented by the specified context. This function must be called
* before the response body can be written, otherwise a malformed
* response will be sent.
*/
extern void HttpSendHeaders(HttpServerContext *);
/**
* Get a stream that is both readable and writable. Reading from the
* stream reads the request body that the client sent, if there is one.
* Note that the rquest headers have already been read, so the stream
* is correctly positioned at the beginning of the body of the request.
* .Fn HttpSendHeaders
* must be called before the stream is written, otherwise a malformed
* HTTP response will be sent. An HTTP handler should properly set all
* the headers it itends to send, send those headers, and then write
* the response body to this stream.
* .Pp
* Note that the stream does not need to be closed by the HTTP
* handler; in fact doing so results in undefined behavior. The stream
* is managed entirely by the server itself, so it will close it when
* necessary. This allows the underlying protocol to differ: for
* instance, an HTTP/1.1 connection may stay for multiple requests and
* responses.
*/
extern Stream * HttpServerStream(HttpServerContext *);
#endif /* TELODENDRIA_HTTPSERVER_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_INT_H
#define TELODENDRIA_INT_H
/***
* @Nm Int
* @Nd Fixed-width integer types.
* @Dd April 27 2023
*
* This header provides cross-platform, fixed-width integer types.
* Specifically, it uses preprocessor magic to define the following
* types:
* .Bl -bullet -offset indent
* .It
* Int8 and UInt8
* .It
* Int16 and UInt16
* .It
* Int32 and UInt32
* .El
* .Pp
* Note that there is no 64-bit integer type, because the ANSI C
* standard makes no guarantee that such a type will exist, even
* though it does on most platforms.
* .Pp
* The reason Telodendria provides its own header for this is
* because ANSI C does not define fixed-width types, and while it
* should be safe to rely on C99 fixed-width types in most cases,
* there may be cases where even that is not possible.
*
* @ignore-typedefs
*/
#include <limits.h>
#define BIT64_MAX 18446744073709551615
#define BIT32_MAX 4294967295
#define BIT16_MAX 65535
#define BIT8_MAX 255
#ifndef UCHAR_MAX
#error Size of char data type is unknown. Define UCHAR_MAX.
#endif
#ifndef USHRT_MAX
#error Size of short data type is unknown. Define USHRT_MAX.
#endif
#ifndef UINT_MAX
#error Size of int data type is unknown. Define UINT_MAX.
#endif
#ifndef ULONG_MAX
#error Size of long data type is unknown. Define ULONG_MAX.
#endif
#if UCHAR_MAX == BIT8_MAX
typedef signed char Int8;
typedef unsigned char UInt8;
#else
#error Unable to determine suitable data type for 8-bit integers.
#endif
#if UINT_MAX == BIT16_MAX
typedef signed int Int16;
typedef unsigned int UInt16;
#elif USHRT_MAX == BIT16_MAX
typedef signed short Int16;
typedef unsigned short UInt16;
#elif UCHAR_MAX == BIT16_MAX
typedef signed char Int16;
typedef unsigned char UInt16;
#else
#error Unable to determine suitable data type for 16-bit integers.
#endif
#if ULONG_MAX == BIT32_MAX
typedef signed long Int32;
typedef unsigned long UInt32;
#elif UINT_MAX == BIT32_MAX
typedef signed int Int32;
typedef unsigned int UInt32;
#elif USHRT_MAX == BIT32_MAX
typedef signed short Int32;
typedef unsigned short UInt32;
#elif UCHAR_MAX == BIT32_MAX
typedef signed char Int32;
typedef unsigned char UInt32;
#else
#error Unable to determine suitable data type for 32-bit integers.
#endif
/* The ANSI C standard only guarantees a data size of up to 32 bits. */
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_IO_H
#define TELODENDRIA_IO_H
/***
* @Nm Io
* @Nd Source/sink-agnostic I/O for implementing custom streams.
* @Dd April 29 2023
* @Xr Stream Tls
*
* Many systems provide platform-specific means of implementing custom
* streams using file pointers. However, POSIX does not define a way
* of programmatically creating custom streams.
* .Nm
* therefore fills this gap in POSIX by mimicking all of the
* functionality of these platform-specific functions, but in pure
* POSIX C. It defines a number of callback funtions to be executed
* in place of the standard POSIX I/O functions, which are used to
* implement arbitrary streams that may not be to a file or socket.
* Additionally, streams can now be pipelined; the sink of one stream
* may be the source of another lower-level stream. Additionally, all
* streams, regardless of their source or sink, share the same API, so
* streams can be handled in a much more generic manner. This allows
* the HTTP client and server libraries to seemlessly support TLS and
* plain connections without having to handle each separately.
* .Pp
* .Nm
* was heavily inspired by GNU's
* .Fn fopencookie
* and BSD's
* .Fn funopen .
* It aims to combine the best of both of these functions into a single
* API that is intuitive and easy to use.
*/
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <sys/types.h>
#ifndef IO_BUFFER
#define IO_BUFFER 4096
#endif
/**
* An opaque structure analogous to a POSIX file descriptor.
*/
typedef struct Io Io;
/**
* Read input from the source of a stream. This function should
* attempt to read the specified number of bytes of data from the
* given cookie into the given buffer. It should behave identically
* to the POSIX
* .Xr read 2
* system call, except instead of using an integer descriptor as the
* first parameter, a pointer to an implementation-defined cookie
* stores any information the function needs to read from the source.
*/
typedef ssize_t (IoReadFunc) (void *, void *, size_t);
/**
* Write output to a sink. This function should attempt to write the
* specified number of bytes of data from the given buffer into the
* stream described by the given cookie. It should behave identically
* to the POSIX
* .Xr write 2
* system call, except instead of using an integer descriptor as the
* first parameter, a pointer to an implementation-defined cookie
* stores any information the function needs to write to the sink.
*/
typedef ssize_t (IoWriteFunc) (void *, void *, size_t);
/**
* Repositions the offset of the stream described by the specified
* cookie. This function should behave identically to the POSIX
* .Xr lseek 2
* system call, except instead of using an integer descriptor as the
* first parameter, a pointer to an implementation-defined cookie
* stores any information the function needs to seek the stream.
*/
typedef off_t (IoSeekFunc) (void *, off_t, int);
/**
* Close the given stream, making future reads or writes result in
* undefined behavior. This function should also free all memory
* associated with the cookie. It should behave identically to the
* .Xr close 2
* system call, except instead of using an integer descriptor for the
* parameter, a pointer to an implementation-defined cookie stores any
* information the function needs to close the stream.
*/
typedef int (IoCloseFunc) (void *);
/**
* A simple mechanism for grouping together a set of stream functions,
* to be passed to
* .Fn IoCreate .
*/
typedef struct IoFunctions
{
IoReadFunc *read;
IoWriteFunc *write;
IoSeekFunc *seek;
IoCloseFunc *close;
} IoFunctions;
/**
* Create a new stream using the specified cookie and the specified
* I/O functions.
*/
extern Io * IoCreate(void *, IoFunctions);
/**
* Read the specified number of bytes from the specified stream into
* the specified buffer. This calls the stream's underlying IoReadFunc,
* which should behave identically to the POSIX
* .Xr read 2
* system call.
*/
extern ssize_t IoRead(Io *, void *, size_t);
/**
* Write the specified number of bytes from the specified stream into
* the specified buffer. This calls the stream's underlying
* IoWriteFunc, which should behave identically to the POSIX
* .Xr write 2
* system call.
*/
extern ssize_t IoWrite(Io *, void *, size_t);
/**
* Seek the specified stream using the specified offset and whence
* value. This calls the stream's underlying IoSeekFunc, which should
* behave identically to the POSIX
* .Xr lseek 2
* system call.
*/
extern off_t IoSeek(Io *, off_t, int);
/**
* Close the specified stream. This calls the stream's underlying
* IoCloseFunc, which should behave identically to the POSIX
* .Xr close 2
* system call.
*/
extern int IoClose(Io *);
/**
* Print a formatted string to the given stream. This is a
* re-implementation of the standard library function
* .Xr vfprintf 3 ,
* and behaves identically.
*/
extern int IoVprintf(Io *, const char *, va_list);
/**
* Print a formatted string to the given stream. This is a
* re-implementation of the standard library function
* .Xr fprintf 3 ,
* and behaves identically.
*/
extern int IoPrintf(Io *, const char *,...);
/**
* Read all the bytes from the first stream and write them to the
* second stream. Neither stream is closed upon the completion of this
* function. This can be used for quick and convenient buffered
* copying of data from one stream into another.
*/
extern ssize_t IoCopy(Io *, Io *);
/**
* Wrap a POSIX file descriptor to take advantage of this API. The
* common use case for this function is when a regular file descriptor
* needs to be accessed by an application that uses this API to also
* access non-POSIX streams.
*/
extern Io * IoFd(int);
/**
* Open or create a file for reading or writing. The specified file
* name is opened for reading or writing as specified by the given
* flags and mode. This function is a simple convenience wrapper around
* the POSIX
* .Xr open 2
* system call that passes the opened file descriptor into
* .Fn IoFd .
*/
extern Io * IoOpen(const char *, int, mode_t);
/**
* Wrap a standard C file pointer to take advantage of this API. The
* common use case for this function is when a regular C file pointer
* needs to be accessed by an application that uses this API to also
* access custom streams.
*/
extern Io * IoFile(FILE *);
#endif /* TELODENDRIA_IO_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_JSON_H
#define TELODENDRIA_JSON_H
/***
* @Nm Json
* @Nd A fully-featured JSON API.
* @Dd March 12 2023
* @Xr HashMap Array Stream
*
* .Nm
* is a fully-featured JSON API for C using the array and hash map
* APIs. It can parse JSON, ans serialize an in-memory structure to
* JSON. It build on the foundation of Array and HashMap because that's
* all JSON really is, just arrays and maps.
* .Nm
* also provides a structure for encapsulating an arbitrary value and
* identifying its type, making it easy for a strictly-typed language
* like C to work with loosely-typed JSON data.
* .Nm
* is very strict and tries to adhere as closely as possible to the
* proper definition of JSON. It will fail on syntax errors of any
* kind, which is fine for a Matrix homeserver that can just return
* M_BAD_JSON if anything in here fails, but this behavior may not be
* suitable for other purposes.
* .Pp
* This JSON implementation focuses primarily on serialization and
* deserialization to and from streams. It does not provide facilities
* for handling JSON strings; it only writes JSON to output streams,
* and reads them from input streams. Of course, you can use the
* POSIX
* .Xr fmemopen 3
* and
* .Xr open_memstream 3
* functions if you want to deal with JSON strings, but JSON is
* intended to be an exchange format. Data should be converted to JSON
* right when it is leaving the program, and converted from JSON to the
* in-memory format as soon as it is coming in.
* .Pp
* JSON objects are represented as hash maps consisting entirely of
* JsonValue structures, and arrays are represented as arrays
* consisting entirely of JsonValue structures. When generating a
* JSON object, any attempt to stuff a value into a hash map or array
* without first encoding it as a JsonValue will result in undefined
* behavior.
*/
#include <HashMap.h>
#include <Array.h>
#include <Stream.h>
#include <stdio.h>
#include <stddef.h>
#define JSON_DEFAULT -1
#define JSON_PRETTY 0
/**
* This opaque structure encapsulates all the possible types that can
* be stored in JSON. It is managed entirely by the functions defined
* in this API. It is important to note that strings, integers, floats,
* booleans, and the NULL value are all stored by value, but objects
* and arrays are stored by reference. That is, it doesn't store these
* itself, just pointers to them, however, the data
* .Em is
* freed when using
* .Fn JsonFree .
*/
typedef struct JsonValue JsonValue;
/**
* These are the types that can be used to identify a JsonValue
* and act on it accordingly.
*/
typedef enum JsonType
{
JSON_NULL, /* Maps to a C NULL */
JSON_OBJECT, /* Maps to a HashMap of JsonValues */
JSON_ARRAY, /* Maps to an Array of JsonValues */
JSON_STRING, /* Maps to a null-terminated C string */
JSON_INTEGER, /* Maps to a C long */
JSON_FLOAT, /* Maps to a C double */
JSON_BOOLEAN /* Maps to a C integer of either 0 or 1 */
} JsonType;
/**
* Determine the type of the specified JSON value.
*/
extern JsonType JsonValueType(JsonValue *);
/**
* Encode a JSON object as a JSON value that can be added to another
* object, or an array.
*/
extern JsonValue * JsonValueObject(HashMap *);
/**
* Unwrap a JSON value that represents an object. This function will
* return NULL if the value is not actually an object.
*/
extern HashMap * JsonValueAsObject(JsonValue *);
/**
* Encode a JSON array as a JSON value that can be added to an object
* or another array.
*/
extern JsonValue * JsonValueArray(Array *);
/**
* Unwrap a JSON value that represents an array. This function will
* return NULL if the value is not actually an array.
*/
extern Array * JsonValueAsArray(JsonValue *);
/**
* Encode a C string as a JSON value that can be added to an object or
* an array.
*/
extern JsonValue * JsonValueString(char *);
/**
* Unwrap a JSON value that represents a string. This function will
* return NULL if the value is not actually a string.
*/
extern char * JsonValueAsString(JsonValue *);
/**
* Encode a number as a JSON value that can be added to an object or
* an array.
*/
extern JsonValue * JsonValueInteger(long);
/**
* Unwrap a JSON value that represents a number. This function will
* return 0 if the value is not actually a number, which may be
* misleading. Check the type of the value before making assumptions
* about its value.
*/
extern long JsonValueAsInteger(JsonValue *);
/**
* Encode a floating point number as a JSON value that can be added
* to an object or an array.
*/
extern JsonValue * JsonValueFloat(double);
/**
* Unwrap a JSON value that represents a floating point number. This
* function will return 0 if the value is not actually a floating
* point number, which may be misleading. Check the type of the value
* before making assumptions about its type.
*/
extern double JsonValueAsFloat(JsonValue *);
/**
* Encode a C integer according to the way C treats integers in boolean
* expressions as a JSON value that can be added to an object or an
* array.
*/
extern JsonValue * JsonValueBoolean(int);
/**
* Unwrap a JSON value that represents a boolean. This function will
* return 0 if the value is not actually a boolean, which may be
* misleading. Check the type of the value before making assumptions
* about its type.
*/
extern int JsonValueAsBoolean(JsonValue *);
/**
* This is a special case that represents a JSON null. Because the
* Array and HashMap APIs do not accept NULL values, this function
* should be used to represent NULL in JSON. Even though a small
* amount of memory is allocated just to be a placeholder for nothing,
* this keeps the APIs clean.
*/
extern JsonValue * JsonValueNull(void);
/**
* Free the memory being used by a JSON value. Note that this will
* recursively free all Arrays, HashMaps, and other JsonValues that are
* reachable from the given value, including any strings attached to
* this value.
*/
extern void JsonValueFree(JsonValue *);
/**
* Recursively duplicate the given JSON value. This returns a new
* JSON value that is completely identical to the specified value, but
* in no way connected to it.
*/
extern JsonValue * JsonValueDuplicate(JsonValue *);
/**
* Recursively duplicate the given JSON object. This returns a new
* JSON object that is completely identical to the specified object,
* but in no way connect to it.
*/
extern HashMap * JsonDuplicate(HashMap *);
/**
* Recursively free a JSON object by iterating over all of its values
* and freeing them using
* .Fn JsonValueFree .
*/
extern void JsonFree(HashMap *);
/**
* Encode the given string in such a way that it can be safely
* embedded in a JSON stream. This entails:
* .Bl -bullet -offset indent
* .It
* Escaping quotes, backslashes, and other special characters using
* their backslash escape.
* .It
* Encoding bytes that are not UTF-8 using escapes.
* .It
* Wrapping the entire string in double quotes.
* .El
* .Pp
* This function is only provided via the public
* .Nm
* API so that it is accessible to custom JSON encoders, such as the
* CanonicalJson encoder. This will typically be used for encoding
* object keys; to encode values, just use
* .Fn JsonEncodeValue .
* .Pp
* This function returns the number of bytes written to the stream,
* or if the stream is NULL, the number of bytes that would have
* been written.
*/
extern int JsonEncodeString(const char *, Stream *);
/**
* Serialize a JSON value as it would appear in JSON output. This is
* a recursive function that also encodes all child values reachable
* from the given value. This function is exposed via the public
* .Nm
* API so that it is accessible to custom JSON encoders. Normal users
* that are not writing custom encoders should in most cases just use
* .Fn JsonEncode
* to encode an entire object.
* .Pp
* The third parameter is an integer that represents the indent level
* of the value to be printed, or a negative number if pretty-printing
* should be disabled and JSON should be printed as minimized as
* possible. To pretty-print a JSON object, set this to
* .Va JSON_PRETTY .
* To get minified output, set it to
* .Va JSON_DEFAULT .
* .Pp
* This function returns the number of bytes written to the stream,
* or if the stream is NULL, the number of bytes that would have
* been written.
*/
extern int JsonEncodeValue(JsonValue *, Stream *, int);
/**
* Encode a JSON object as it would appear in JSON output, writing it
* to the given output stream. This function is recursive; it will
* serialize everything accessible from the passed object. The third
* parameter has the same behavior as described above.
* .Pp
* This function returns the number of bytes written to the stream,
* or if the stream is NULL, the number of bytes that would have
* been written.
*/
extern int JsonEncode(HashMap *, Stream *, int);
/**
* Decode a JSON object from the given input stream and parse it into
* a hash map of JSON values.
*/
extern HashMap * JsonDecode(Stream *);
/**
* A convenience function that allows the caller to retrieve and
* arbitrarily deep keys within a JSON object. It takes a root JSON
* object, the number of levels deep to go, and then that number of
* keys as a varargs list. All keys must have objects as values, with
* the exception of the last one, which is the value that will be
* returned. Otherwise, NULL indicates the specified path doas not
* exist.
*/
extern JsonValue * JsonGet(HashMap *, size_t,...);
/**
* A convenience function that allows the caller to set arbitrarily
* deep keys within a JSON object. It takes a root JSON object, the
* number of levels deep to go, and then that number of keys as a
* varargs list. All keys must have object as values, with the
* exception of the last one, which is the value that will be set.
* The value currently at that key, if any, will be returned.
* This function will create any intermediate objects as necessary to
* set the proper key.
*/
extern JsonValue * JsonSet(HashMap *, JsonValue *, size_t,...);
#endif /* TELODENDRIA_JSON_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_LOG_H
#define TELODENDRIA_LOG_H
/***
* @Nm Log
* @Nd A simple logging framework for logging to multiple destinations.
* @Dd April 27 2023
* @Xr Stream
*
* .Nm
* is a simple C logging library that allows for colorful outputs,
* timestamps, and custom log levels. It also features the ability to
* have multiple logs open at one time, although Telodendria primarily
* utilizes the global log. All logs are thread safe.
*/
#include <stdio.h>
#include <stddef.h>
#include <syslog.h>
#include <Stream.h>
#define LOG_FLAG_COLOR (1 << 0)
#define LOG_FLAG_SYSLOG (1 << 1)
/**
* A log is defined as a configuration that describes the properties
* of the log. This opaque structure can be manipulated by the
* functions defined in this API.
*/
typedef struct LogConfig LogConfig;
/**
* Create a new log configuration with sane defaults that can be used
* immediately with the logging functions.
*/
extern LogConfig * LogConfigCreate(void);
/**
* Get the global log configuration, creating a new one with
* .Fn LogConfigCreate
* if necessary.
*/
extern LogConfig * LogConfigGlobal(void);
/**
* Free the given log configuration. Note that this does not close the
* underlying stream associated with the log, if there is one. Also
* note that to avoid memory leaks, the global log configuration must
* also be freed, but it cannot be used after it is freed.
*/
extern void LogConfigFree(LogConfig *);
/**
* Set the current log level on the specified log configuration.
* This indicates that only messages at or above this level should be
* logged; all others are silently discarded. The passed log level
* should be one of the log levels defined by
* .Xr syslog 3 .
* Refer to that page for a complete list of acceptable log levels,
* and note that passing an invalid log level will result in undefined
* behavior.
*/
extern void LogConfigLevelSet(LogConfig *, int);
/**
* Cause the log output to be indented two more spaces than it was
* previously. This can be helpful when generating stack traces or
* other hierarchical output. This is a simple convenience wrapper
* around
* .Fn LogConfigIndentSet .
*/
extern void LogConfigIndent(LogConfig *);
/**
* Cause the log output to be indented two less spaces than it was
* previously. This is a simple convenience wrapper around
* .Fn LogConfigIndentSet .
*/
extern void LogConfigUnindent(LogConfig *);
/**
* Indent future log output using the specified config by some
* arbitrary amount.
*/
extern void LogConfigIndentSet(LogConfig *, size_t);
/**
* Set the file stream that logging output should be written to. This
* defaults to standard output, but it can be set to standard error,
* or any other arbitrary stream. Passing a NULL value for the stream
* pointer sets the log output to the standard output. Note that the
* output stream is only used if
* .Va LOG_FLAG_SYSLOG
* is not set.
*/
extern void LogConfigOutputSet(LogConfig *, Stream *);
/**
* Set a number of boolean options on a log configuration. This
* function uses bitwise operators, so multiple options can be set with
* a single function call using bitwise OR operators. The flags are
* defined as preprocessor macros, and are as follows:
* .Bl -tag -width Ds
* .It LOG_FLAG_COLOR
* When set, enable color-coded output on TTYs. Note that colors are
* implemented as ANSI escape sequences, and are not written to file
* streams that are not actually connected to a TTY, to prevent those
* sequences from being written to a file.
* .Xr isatty 3
* is checked before writing any terminal sequences.
* .It LOG_FLAG_SYSLOG
* When set, log output to the syslog using
* .Xr syslog 3 ,
* instead of logging to the file set by
* .Fn LogConfigOutputSet .
* This flag always overrides the stream set by that function,
* regardless of when it was set, even if it was set after this flag
* was set.
* .El
*/
extern void LogConfigFlagSet(LogConfig *, int);
/**
* Clear a boolean flag from the specified log format. See above for
* the list of flags.
*/
extern void LogConfigFlagClear(LogConfig *, int);
/**
* Set a custom timestamp to be prepended to each message if the
* output is not going to the system log. Consult your system's
* documentation for
* .Xr strftime 3 .
* A value of NULL disables the timestamp output before messages.
*/
extern void LogConfigTimeStampFormatSet(LogConfig *, char *);
/**
* This function does the actual logging of messages using a
* specified configuration. It takes the configuration, the log
* level, a format string, and then a list of arguments, all in that
* order. This function only logs messages if their level is above
* or equal to the currently configured log level, making it easy to
* turn some messages on or off.
* .Pp
* This function has the same usage as
* .Xr vprintf 3 .
* Consult that page for the list of format specifiers and their
* arguments. This function is typically not used directly, see the
* other log functions for the most common use cases.
*/
extern void Logv(LogConfig *, int, const char *, va_list);
/**
* Log a message using
* .Fn Logv .
* with the specified configuration. This function has the same usage
* as
* .Xr printf 3 .
*/
extern void LogTo(LogConfig *, int, const char *, ...);
/**
* Log a message to the global log using
* .Fn Logv .
* This function has the same usage as
* .Xr printf 3 .
*/
extern void Log(int, const char *, ...);
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_MEMORY_H
#define TELODENDRIA_MEMORY_H
/***
* @Nm Memory
* @Nd Smart memory management.
* @Dd January 9 2023
*
* .Nm
* is an API that allows for smart memory management and profiling. It
* wraps the standard library functions
* .Xr malloc 3 ,
* .Xr realloc 3 ,
* and
* .Xr free 3 ,
* and offers identical semantics, while providing functionality that
* the standard library doesn't have, such as getting statistics on the
* total memory allocated on the heap, and getting the size of a block
* given a pointer. Additionally, thanks to preprocessor macros, the
* exact file and line number at which an allocation, re-allocation, or
* free occured can be obtained given a pointer. Finally, all the
* blocks allocated on the heap can be iterated and evaluated, and a
* callback function can be executed every time a memory operation
* occurs.
* .Pp
* In the future, this API could include a garbage collector that
* automatically frees memory it detects as being no longer in use.
* However, this feature does not yet exist.
* .Pp
* A number of macros are available, which make the
* .Nm
* API much easier to use. They are as follows:
* .Bl -bullet -offset indent
* .It
* .Fn Malloc "x"
* .It
* .Fn Realloc "x" "y"
* .It
* .Fn Free "x"
* .El
* .Pp
* These macros expand to
* .Fn MemoryAllocate ,
* .Fn MemoryReallocate ,
* and
* .Fn MemoryFree
* with the second and third parameters set to __FILE__ and __LINE__.
* This allows
* .Nm
* to be used exactly how the standard library functions would be
* used. In fact, the functions to which these macros expand are not
* intended to be used directly; for the best results, use these
* macros.
*/
#include <stddef.h>
/**
* These values are passed into the memory hook function to indicate
* the action that just happened.
*/
typedef enum MemoryAction
{
MEMORY_ALLOCATE,
MEMORY_REALLOCATE,
MEMORY_FREE,
MEMORY_BAD_POINTER
} MemoryAction;
#define Malloc(x) MemoryAllocate(x, __FILE__, __LINE__)
#define Realloc(x, s) MemoryReallocate(x, s, __FILE__, __LINE__)
#define Free(x) MemoryFree(x, __FILE__, __LINE__)
/**
* The memory information is opaque, but can be accessed using the
* functions defined by this API.
*/
typedef struct MemoryInfo MemoryInfo;
/**
* Allocate the specified number of bytes on the heap. This function
* has the same semantics as
* .Xr malloc 3 ,
* except that it takes the file name and line number at which the
* allocation occurred.
*/
extern void * MemoryAllocate(size_t, const char *, int);
/**
* Change the size of the object pointed to by the given pointer
* to the given number of bytes. This function has the same semantics
* as
* .Xr realloc 3 ,
* except that it takes the file name and line number at which the
* reallocation occurred.
*/
extern void * MemoryReallocate(void *, size_t, const char *, int);
/**
* Free the memory at the given pointer. This function has the same
* semantics as
* .Xr free 3 ,
* except that it takes the file name and line number at which the
* free occurred.
*/
extern void MemoryFree(void *, const char *, int);
/**
* Get the total number of bytes that the program has allocated on the
* heap. This operation iterates over all heap allocations made with
* .Fn MemoryAllocate
* and then returns a total count, in bytes.
*/
extern size_t MemoryAllocated(void);
/**
* Iterate over all heap allocations made with
* .Fn MemoryAllocate
* and call
* .Fn MemoryFree
* on them. This function immediately invalidates all pointers to
* blocks on the heap, and any subsequent attempt to read or write to
* data on the heap will result in undefined behavior. This is
* typically called at the end of the program, just before exit.
*/
extern void MemoryFreeAll(void);
/**
* Fetch information about an allocation. This function takes a raw
* pointer, and if
* . Nm
* knows about the pointer, it returns a structure that can be used
* to obtain information about the block of memory that the pointer
* points to.
*/
extern MemoryInfo * MemoryInfoGet(void *);
/**
* Get the size in bytes of the block of memory represented by the
* specified memory info structure.
*/
extern size_t MemoryInfoGetSize(MemoryInfo *);
/**
* Get the file name in which the block of memory represented by the
* specified memory info structure was allocated.
*/
extern const char * MemoryInfoGetFile(MemoryInfo *);
/**
* Get the line number on which the block of memory represented by the
* specified memory info structure was allocated.
*/
extern int MemoryInfoGetLine(MemoryInfo *);
/**
* Get a pointer to the block of memory represented by the specified
* memory info structure.
*/
extern void * MemoryInfoGetPointer(MemoryInfo *);
/**
* This function takes a pointer to a function that takes the memory
* info structure, as well as a void pointer for caller-provided
* arguments. It iterates over all the heap memory currently allocated
* at the time of calling, executing the function on each allocation.
*/
extern void MemoryIterate(void (*) (MemoryInfo *, void *), void *);
/**
* Specify a function to be executed whenever a memory operation
* occurs. The MemoryAction argument specifies the operation that
* occurred on the block of memory represented by the memory info
* structure. The function also takes a void pointer to caller-provided
* arguments.
*/
extern void MemoryHook(void (*) (MemoryAction, MemoryInfo *, void *), void *);
/**
* Read over the block of memory represented by the given memory info
* structure and generate a hexadecimal and ASCII string for each
* chunk of the block. This function takes a callback function that
* takes the following parameters in order:
* .Bl -bullet -offset indent
* .It
* The current offset from the beginning of the block of memory in
* bytes.
* .It
* A null-terminated string containing the next 16 bytes of the block
* encoded as space-separated hex values.
* .It
* A null-terminated string containing the ASCII representation of the
* same 16 bytes of memory. This ASCII representation is safe to print
* to a terminal or other text device, because non-printable characters
* are encoded as a . (period).
* .It
* Caller-passed pointer.
* .El
*/
extern void
MemoryHexDump(MemoryInfo *, void (*) (size_t, char *, char *, void *), void *);
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_QUEUE_H
#define TELODENDRIA_QUEUE_H
/***
* @Nm Queue
* @Nd A simple static queue data structure.
* @Dd November 25 2022
* @Xr Array HashMap
*
* .Nm
* implements a simple queue data structure that is statically sized.
* This implementation does not actually store the values of the items
* in it; it only stores pointers to the data. As such, you will have
* to manually maintain data and make sure it remains valid as long as
* it is in the queue. The advantage of this is that
* .Nm
* doesn't have to copy data, and thus doesn't care how big the data
* is. Furthermore, any arbitrary data can be stored in the queue.
* .Pp
* This queue implementation operates on the heap. It is a circular
* queue, and it does not grow as it is used. Once the size is set,
* the queue never gets any bigger.
*/
#include <stddef.h>
/**
* These functions operate on a queue structure that is opaque to the
* caller.
*/
typedef struct Queue Queue;
/**
* Allocate a new queue that is able to store the specified number of
* items in it.
*/
extern Queue * QueueCreate(size_t);
/**
* Free the memory associated with the specified queue structure. Note
* that this function does not free any of the values stored in the
* queue; it is the caller's job to manage memory for each item.
* Typically, the caller would dequeue all the items in the queue and
* deal with them before freeing the queue itself.
*/
extern void QueueFree(Queue *);
/**
* Push an element into the queue. This function returns a boolean
* value indicating whether or not the push succeeded. Pushing items
* into the queue will fail if the queue is full.
*/
extern int QueuePush(Queue *, void *);
/**
* Pop an element out of the queue. This function returns NULL if the
* queue is empty. Otherwise, it returns a pointer to the item that is
* next up in the queue.
*/
extern void * QueuePop(Queue *);
/**
* Retrieve a pointer to the item that is next up in the queue without
* actually discarding it, such that the next call to
* .Fn QueuePeek
* or
* .Fn QueuePop
* will return the same pointer.
*/
extern void * QueuePeek(Queue *);
/**
* Determine whether or not the queue is full.
*/
extern int QueueFull(Queue *);
/**
* Determine whether or not the queue is empty.
*/
extern int QueueEmpty(Queue *);
#endif

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_RAND_H
#define TELODENDRIA_RAND_H
/***
* @Nm Rand
* @Nd Thread-safe random numbers.
* @Dd February 16 2023
* @Xr Util
*
* .Nm
* is used for generating random numbers in a thread-safe way.
* Currently, one generator state is shared across all threads, which
* means that only one thread can generate random numbers at a time.
* This state is protected with a mutex to guarantee this behavior.
* In the future, a seed pool may be maintained to allow multiple
* threads to generate random numbers at the same time.
* .Pp
* The generator state is seeded on the first call to a function that
* needs it. The seed is determined by the current timestamp, the ID
* of the process, and the thread ID. These should all be sufficiently
* random sources, so the seed should be secure enough.
* .Pp
* .Nm
* currently uses a simple Mersenne Twister algorithm to generate
* random numbers. This algorithm was chosen because it is extremely
* popular and widespread. While it is likely not cryptographically
* secure, and does suffer some unfortunate pitfalls, this algorithm
* has stood the test of time and is simple enough to implement, so
* it was chosen over the alternatives.
* .Pp
* .Nm
* does not use any random number generator functions from the C
* standard library, since these are often flawed.
*/
#include <stddef.h>
/**
* Generate a single random integer between 0 and the passed value.
*/
extern int RandInt(unsigned int);
/**
* Generate the number of integers specified by the second argument
* storing them into the buffer pointed to in the first argument.
* Ensure that each number is between 0 and the third argument.
* .Pp
* This function allows a caller to get multiple random numbers at once
* in a more efficient manner than repeatedly calling
* .Fn RandInt ,
* since each call to these functions
* has to lock and unlock a mutex. It is therefore better to obtain
* multiple random numbers in one pass if multiple are needed.
*/
extern void RandIntN(int *, size_t, unsigned int);
#endif /* TELODENDRIA_RAND_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_SHA2_H
#define TELODENDRIA_SHA2_H
/***
* @Nm Sha2
* @Nd A simple implementation of the SHA2 hashing functions.
* @Dd December 19 2022
* @Xr Memory Base64
*
* This API defines simple functions for computing SHA2 hashes.
* At the moment, it only defines
* .Fn Sha256 ,
* which computes the SHA-256 hash of the given C string. It is
* not trivial to implement SHA-512 in ANSI C due to the lack of
* a 64-bit integer type, so that hash function has been omitted.
*/
/**
* This function takes a pointer to a NULL-terminated C string, and
* returns a string allocated on the heap using the Memory API, or
* NULL if there was an error allocating memory. The returned string
* should be freed when it is no longer needed.
*/
extern char * Sha256(char *);
#endif /* TELODENDRIA_SHA2_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_STR_H
#define TELODENDRIA_STR_H
/***
* @Nm Str
* @Nd Functions for creating and manipulating strings.
* @Dd February 15 2023
* @Xr Memory
*
* .Nm
* provides string-related functions. It is called
* .Nm ,
* not String, because some platforms (Windows) do not have
* case-sensitive filesystems, which poses a problem since
* .Pa string.h
* is a standard library header.
*/
#include <stddef.h>
/**
* Take a UTF-8 codepoint and encode it into a string buffer containing
* between 1 and 4 bytes. The string buffer is allocated on the heap,
* so it should be freed when it is no longer needed.
*/
extern char * StrUtf8Encode(unsigned long);
/**
* Duplicate a null-terminated string, returning a new string on the
* heap. This is useful when a function takes in a string that it needs
* to store for long amounts of time, even perhaps after the original
* string is gone.
*/
extern char * StrDuplicate(const char *);
/**
* Extract part of a null-terminated string, returning a new string on
* the heap containing only the requested subsection. Like the
* substring functions included with most programming languages, the
* starting index is inclusive, and the ending index is exclusive.
*/
extern char * StrSubstr(const char *, size_t, size_t);
/**
* A varargs function that takes a number of null-terminated strings
* specified by the first argument, and returns a new string that
* contains their concatenation. It works similarly to
* .Xr strcat 3 ,
* but it takes care of allocating memory big enough to hold all the
* strings. Any string in the list may be NULL. If a NULL pointer is
* passed, it is treated like an empty string.
*/
extern char * StrConcat(size_t,...);
/**
* Return a boolean value indicating whether or not the null-terminated
* string consists only of blank characters, as determined by
* .Xr isblank 3 .
*/
extern int StrBlank(const char *str);
/**
* Generate a string of the specified length, containing random
* lowercase and uppercase letters.
*/
extern char * StrRandom(size_t);
/**
* Convert the specified integer into a string, returning the string
* on the heap, or NULL if there was a memory allocation error. The
* returned string should be freed by the caller after it is no longer
* needed.
*/
extern char * StrInt(long);
/**
* Compare two strings and determine whether or not they are equal.
* This is the most common use case of strcmp() in Telodendria, but
* strcmp() doesn't like NULL pointers, so these have to be checked
* explicitly and can cause problems if they aren't. This function,
* on the other hand, makes NULL pointers special cases. If both
* arguments are NULL, then they are considered equal. If only one
* argument is NULL, they are considered not equal. Otherwise, if
* no arguments are NULL, a regular strcmp() takes place and this
* function returns a boolean value indicating whether or not
* strcmp() returned 0.
*/
extern int StrEquals(const char *, const char *);
#endif /* TELODENDRIA_STR_H */

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_STREAM_H
#define TELODENDRIA_STREAM_H
/***
* @Nm Stream
* @Nd An abstraction over the Io API that implements standard C I/O.
* @Dd April 29 2023
* @Xr Io
*
* .Nm
* implements an abstraction layer over the Io API. This layer buffers
* I/O and makes it much easier to work with, mimicking the standard
* C library and offering some more convenience features.
*/
#include <Io.h>
#include <stdarg.h>
/**
* An opaque structure analogous to C's FILE pointers.
*/
typedef struct Stream Stream;
/**
* Create a new stream using the specified Io for underlying I/O
* operations.
*/
extern Stream * StreamIo(Io * io);
/**
* Create a new stream using the specified POSIX file descriptor.
* This is a convenience function for calling
* .Fn IoFd
* and then passing the result into
* .Fn StreamIo .
*/
extern Stream * StreamFd(int);
/**
* Create a new stream using the specified C FILE pointer. This is a
* convenience function for calling
* .Fn IoFile
* and then passing the result into
* .Fn StreamIo .
*/
extern Stream * StreamFile(FILE *);
/**
* Create a new stream using the specified path and mode. This is a
* convenience function for calling
* .Xr fopen 3
* and then passing the result into
* .Fn StreamFile .
*/
extern Stream * StreamOpen(const char *, const char *);
/**
* Get a stream that writes to the standard output.
*/
extern Stream * StreamStdout(void);
/**
* Get a stream that writes to the standard error.
*/
extern Stream * StreamStderr(void);
/**
* Get a stream that reads from the standard input.
*/
extern Stream * StreamStdin(void);
/**
* Close the stream. This flushes the buffers and closes the underlying
* Io. It is analogous to the standard
* .Xr fclose 3
* function.
*/
extern int StreamClose(Stream *);
/**
* Print a formatted string. This function is analogous to the standard
* .Xr vfprintf 3
* function.
*/
extern int StreamVprintf(Stream *, const char *, va_list);
/**
* Print a formatted string. This function is analogous to the
* standard
* .Xr fprintf 3
* function.
*/
extern int StreamPrintf(Stream *, const char *,...);
/**
* Get a single character from a stream. This function is analogous to
* the standard
* .Xr fgetc 3
* function.
*/
extern int StreamGetc(Stream *);
/**
* Push a character back onto the input stream. This function is
* analogous to the standard
* .Xr ungetc 3
* function.
*/
extern int StreamUngetc(Stream *, int);
/**
* Write a single character to the stream. This function is analogous
* to the standard
* .Xr fputc 3
* function.
*/
extern int StreamPutc(Stream *, int);
/**
* Write a null-terminated string to the stream. This function is
* analogous to the standard
* .Xr fputs 3
* function.
*/
extern int StreamPuts(Stream *, char *);
/**
* Read at most the specified number of characters minus 1 from the
* specified stream and store them at the memory located at the
* specified pointer. This function is analogous to the standard
* .Xr fgets 3
* function.
*/
extern char * StreamGets(Stream *, char *, int);
/**
* Set the file position indicator for the specified stream. This
* function is analogous to the standard
* .Xr fseeko
* function.
*/
extern off_t StreamSeek(Stream *, off_t, int);
/**
* Test the end-of-file indicator for the given stream, returning a
* boolean value indicating whether or not it is set. This is analogous
* to the standard
* .Xr feof 3
* function.
*/
extern int StreamEof(Stream *);
/**
* Test the stream for an error condition, returning a boolean value
* indicating whether or not one is present. This is analogous to the
* standard
* .Xr ferror 3
* function.
*/
extern int StreamError(Stream *);
/**
* Clear the error condition associated with the given stream, allowing
* future reads or writes to potentially be successful. This functio
* is analogous to the standard
* .Xr clearerr 3
* function.
*/
extern void StreamClearError(Stream *);
/**
* Flush all buffered data using the streams underlying write function.
* This function is analogous to the standard
* .Xr fflush 3
* function.
*/
extern int StreamFlush(Stream *);
/**
* Read all the bytes from the first stream and write them to the
* second stream. This is analogous to
* .Fn IoCopy ,
* but it uses the internal buffers of the streams. It is probably
* less efficient than doing a
* .Fn IoCopy
* instead, but it is more convenient.
*/
extern ssize_t StreamCopy(Stream *, Stream *);
/**
* Get the file descriptor associated with the given stream, or -1 if
* the stream is not associated with any file descriptor. This function
* is analogous to the standard
* .Xr fileno 3
* function.
*/
extern int StreamFileno(Stream *);
#endif /* TELODENDRIA_STREAM_H */

109
src/include/Tls.h
View File

@ -1,109 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_TLS_H
#define TELODENDRIA_TLS_H
/***
* @Nm Tls
* @Nd Interface to platform-dependent TLS libraries.
* @Dd April 29 2023
* @Xr Stream Io
*
* .Nm
* provides an interface to platform-dependent TLS libraries. It allows
* Telodendria to support any TLS library with no changes to existing
* code. Support for additional TLS libraries is added by creating a
* new compilation unit that implements all the functions here, with
* the exception of a few, which are noted.
* .Pp
* Currently, Telodendria has support for the following TLS libraries:
* .Bl -bullet -offset indent
* .It
* LibreSSL
* .It
* OpenSSL
* .El
*/
#include <Stream.h>
#define TLS_LIBRESSL 2
#define TLS_OPENSSL 3
/**
* Create a new TLS client stream using the given file descriptor and
* the given server hostname. The hostname should be used to verify
* that the server actually is who it says it is.
* .Pp
* This function does not need to be implemented by the individual
* TLS support stubs.
*/
extern Stream * TlsClientStream(int, const char *);
/**
* Create a new TLS server stream using the given certificate and key
* file, in the format natively supported by the TLS library.
* .Pp
* This function does not need to be implemented by the individual
* TLS support stubs.
*/
extern Stream * TlsServerStream(int, const char *, const char *);
/**
* Initialize a cookie that stores information about the given client
* connection. This cookie will be passed into the other functions
* defined by this API.
*/
extern void * TlsInitClient(int, const char *);
/**
* Initialize a cookie that stores information about the given
* server connection. This cookie will be passed into the other
* functions defined by this API.
*/
extern void * TlsInitServer(int, const char *, const char *);
/**
* Read from a TLS stream, decrypting it and storing the result in the
* specified buffer. This function takes the cookie, buffer, and
* number of decrypted bytes to read into it. See the documentation for
* .Fn IoRead .
*/
extern ssize_t TlsRead(void *, void *, size_t);
/**
* Write to a TLS stream, encrypting the buffer. This function takes
* the cookie, buffer, and number of unencrypted bytes to write to
* the stream. See the documentation for
* .Fn IoWrite .
*/
extern ssize_t TlsWrite(void *, void *, size_t);
/**
* Close the TLS stream, also freeing all memory associated with the
* cookie.
*/
extern int TlsClose(void *);
#endif /* TELODENDRIA_TLS_H */

69
src/include/Uri.h
View File

@ -1,69 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_URI_H
#define TELODENDRIA_URI_H
/***
* @Nm Uri
* @Nd Parse a URI. Typically used to parse HTTP(s) URLs.
* @Dd April 29 2023
* @Xr Http
*
* .Nm
* provides a simple mechanism for parsing URIs. This is an extremely
* basic parser that (ab)uses
* .Xr sscanf 3
* to parse URIs, so it may not be the most reliable, but it should
* work in most cases and on reasonable URIs that aren't too long, as
* the _MAX definitions are modest.
*/
#define URI_PROTO_MAX 8
#define URI_HOST_MAX 128
#define URI_PATH_MAX 256
/**
* The parsed URI is stored in this structure.
*/
typedef struct Uri
{
char proto[URI_PROTO_MAX];
char host[URI_HOST_MAX];
char path[URI_PATH_MAX];
unsigned short port;
} Uri;
/**
* Parse a URI string into the Uri structure as described above, or
* return NULL if there was a parsing error.
*/
extern Uri * UriParse(const char *);
/**
* Free the memory associated with a Uri structure returned by
* .Fn UriParse .
*/
extern void UriFree(Uri *);
#endif /* TELODENDRIA_URI_H */

105
src/include/Util.h
View File

@ -1,105 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_UTIL_H
#define TELODENDRIA_UTIL_H
/***
* @Nm Util
* @Nd Some misc. helper functions that don't need their own headers.
* @Dd February 15 2023
*
* This header holds a number of random functions related to strings,
* time, the filesystem, and other simple tasks that don't require a
* full separate API. For the most part, the functions here are
* entirely standalone, depending only on POSIX functions, however
* there are a few that depend explicitly on a few other APIs. Those
* are noted.
*/
#include <stdio.h>
#include <stddef.h>
#include <sys/types.h>
#include <Stream.h>
/**
* Get the current timestamp in milliseconds since the Unix epoch. This
* uses
* .Xr gettimeofday 2
* and time_t, and converts it to a single number, which is then
* returned to the caller.
* .Pp
* A note on the 2038 problem: as long as sizeof(long) >= 8, that is,
* as long as the long data type is 64 bits or more, then everything
* should be fine. On most, if not, all, 64-bit systems, long is 64
* bits. I would expect Telodendria to break for 32 bit systems
* eventually, but we should have a ways to go before that happens.
* I didn't want to try to hack together some system to store larger
* numbers than the architecture supports. But we can always
* re-evaluate over the next few years.
*/
extern unsigned long UtilServerTs(void);
/**
* Use
* .Xr stat 2
* to get the last modified time of the given file, or zero if there
* was an error getting the last modified time of a file. This is
* primarily useful for caching file data.
*/
extern unsigned long UtilLastModified(char *);
/**
* This function behaves just like the system call
* .Xr mkdir 2 ,
* but it creates any intermediate directories as necessary, unlike
* .Xr mkdir 2 .
*/
extern int UtilMkdir(const char *, const mode_t);
/**
* Sleep the calling thread for the given number of milliseconds.
* POSIX does not have a very friendly way to sleep, so this wraps
* .Xr nanosleep 2
* to make its usage much, much simpler.
*/
extern int UtilSleepMillis(long);
/**
* This function works identically to the POSIX
* .Xr getdelim 3 ,
* except that it assumes pointers were allocated with the Memory API
* and it reads from a Stream instead of a file pointer.
*/
extern ssize_t UtilGetDelim(char **, size_t *, int, Stream *);
/**
* This function is just a special case of
* .Fn UtilGetDelim
* that sets the delimiter to the newline character.
*/
extern ssize_t UtilGetLine(char **, size_t *, Stream *);
#endif /* TELODENDRIA_UTIL_H */

72
tools/bin/td
View File

@ -11,6 +11,17 @@
# handle building the code, it also handles formatting it, as well
# as generating patch files.
addprefix() {
prefix="$1"
shift
for thing in "$@"; do
echo "${prefix}${thing}"
done
unset prefix
unset thing
}
if [ -z "$TELODENDRIA_ENV" ]; then
. tools/env.sh
fi
@ -27,38 +38,18 @@ fi
: "${CVS_TAG:=Telodendria-$(echo $TELODENDRIA_VERSION | sed 's/\./_/g')}"
: "${DEFINES:=-D_DEFAULT_SOURCE -DTELODENDRIA_VERSION=\"${TELODENDRIA_VERSION}-$(uname)\"}"
: "${INCLUDES:=src/include Cytoplasm/src/include}"
: "${CC:=cc}"
: "${AR:=ar}"
: "${CFLAGS:=-Wall -Wextra -pedantic -std=c89 -O3 -pipe}"
: "${STATIC:=-static -Wl,-static}"
: "${LD_EXTRA:=-flto -fdata-sections -ffunction-sections -s -Wl,-gc-sections}"
: "${LDFLAGS:=-lm -pthread}"
: "${PROG:=telodendria}"
. "$(pwd)/tools/lib/common.sh"
if [ -n "$TLS_IMPL" ]; then
case "$TLS_IMPL" in
"LIBRESSL")
TLS_LIBS="-ltls -lcrypto -lssl"
;;
"OPENSSL")
TLS_LIBS="-lcrypto -lssl"
;;
*)
echo "Unrecognized TLS implementation: ${TLS_IMPL}"
echo "Consult src/include/Tls.h for supported implementations."
echo "Note that the TLS_ prefix is omitted in TLS_IMPL."
exit 1
;;
esac
DEFINES="${DEFINES} -DTLS_IMPL=TLS_${TLS_IMPL}"
LDFLAGS="${LDFLAGS} ${TLS_LIBS}"
fi
CFLAGS="${CFLAGS} ${DEFINES} ${INCLUDES}"
CFLAGS="${CFLAGS} ${DEFINES} $(addprefix -I$(pwd)/ ${INCLUDES})"
MAIN="Main"
@ -132,15 +123,25 @@ recipe_docs() {
fi
}
recipe_cytoplasm() {
cd Cytoplasm
export TLS_IMPL
sh make.sh
CYTOPLASM_FLAGS="-LCytoplasm/out/lib -lcytoplasm $(sh make.sh libs)"
cd - > /dev/null
}
# Build the source code, and generate the 'build/telodendria'
# binary.
recipe_build() {
recipe_cytoplasm
cd src
mkdir -p ../build
echo "CC = ${CC}"
echo "CFLAGS = ${CFLAGS}"
echo "LDFLAGS = ${LDFLAGS} ${STATIC}"
echo "LDFLAGS = ${CYTOPLASM_FLAGS} ${LDFLAGS} ${STATIC}"
echo
do_rebuild=0
@ -156,7 +157,7 @@ recipe_build() {
echo "CC $(basename $obj)"
obj_dir=$(dirname "../$obj")
mkdir -p "$obj_dir"
if ! $CC $CFLAGS -fPIC -Iinclude -c -o "../$obj" "$src"; then
if ! $CC $CFLAGS -fPIC -c -o "../$obj" "$src"; then
exit 1
fi
do_rebuild=1
@ -165,28 +166,13 @@ recipe_build() {
cd ..
if [ $do_rebuild -eq 1 ] || [ ! -f "build/lib${PROG}.a" ]; then
echo "AR lib${PROG}.a"
if ! $AR rcs "build/lib${PROG}.a" $objs; then
exit 1
fi
fi
if [ $do_rebuild -eq 1 ] || [ ! -f "build/lib${PROG}.so" ]; then
echo "LD lib${PROG}.so"
if ! $CC -shared -o "build/lib${PROG}.so" $objs ${LDFLAGS}; then
exit 1
fi
fi
if [ $do_rebuild -eq 1 ] || [ ! -f "build/$PROG" ]; then
echo "LD $PROG"
if ! $CC -o "build/$PROG" "build/$MAIN.o" -Lbuild -ltelodendria ${LDFLAGS} ${STATIC}; then
if ! $CC -o "build/$PROG" $objs "build/$MAIN.o" ${CYTOPLASM_FLAGS} ${LDFLAGS} ${STATIC}; then
exit 1
fi
fi
for src in $(find tools/src -name '*.c'); do
out=$(basename "$src" .c)
out="build/tools/$out"
@ -194,16 +180,12 @@ recipe_build() {
if [ $(mod_time "$src") -ge $(mod_time "$out") ] || [ $do_rebuild -eq 1 ]; then
echo "CC $(basename $out)"
mkdir -p "$(dirname $out)"
if ! $CC $CFLAGS -Isrc/include -o "$out" "$src" -Lbuild -ltelodendria ${LDFLAGS} ${STATIC}; then
if ! $CC $CFLAGS -o "$out" "$src" ${CYTOPLASM_FLAGS} ${LDFLAGS} ${STATIC}; then
exit 1
fi
fi
done
if ! intcheck; then
exit 1
fi
recipe_docs
}

5
tools/env.sh
View File

@ -31,8 +31,9 @@ if which makewhatis 2>&1 > /dev/null; then
makewhatis "$(pwd)/man"
fi
export PATH="$(pwd)/tools/bin:$(pwd)/build/tools:$PATH"
export MANPATH="$(pwd)/man:$(pwd)/build/man:$MANPATH"
export LD_LIBRARY_PATH="$(pwd)/Cytoplasm/out/lib"
export PATH="$(pwd)/tools/bin:$(pwd)/build/tools:$(pwd)/Cytoplasm/out/bin:$PATH"
export MANPATH="$(pwd)/man:$(pwd)/build/man:$(pwd)/Cytoplasm/out/man:$MANPATH"
if [ "$(uname)" = "OpenBSD" ]; then
# Other platforms use different MALLOC_OPTIONS

520
tools/src/hdoc.c
View File

@ -1,520 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <HeaderParser.h>
#include <HashMap.h>
#include <Str.h>
#include <Memory.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
typedef struct DocDecl
{
char docs[HEADER_EXPR_MAX];
HeaderDeclaration decl;
} DocDecl;
typedef struct DocTypedef
{
char docs[HEADER_EXPR_MAX];
char text[HEADER_EXPR_MAX];
} DocTypedef;
typedef struct DocGlobal
{
char docs[HEADER_EXPR_MAX];
HeaderGlobal global;
} DocGlobal;
static void
ParseMainBlock(HashMap * registers, Array * descr, char *comment)
{
char *line = strtok(comment, "\n");
while (line)
{
while (*line && (isspace(*line) || *line == '*'))
{
line++;
}
if (!*line)
{
goto next;
}
if (*line == '@')
{
int i = 0;
line++;
while (!isspace(line[i]))
{
i++;
}
line[i] = '\0';
Free(HashMapSet(registers, line, StrDuplicate(line + i + 1)));
}
else
{
ArrayAdd(descr, StrDuplicate(line));
}
next:
line = strtok(NULL, "\n");
}
}
int
main(int argc, char **argv)
{
HeaderExpr expr;
size_t i;
char *val;
int exit = EXIT_SUCCESS;
HashMap *registers = HashMapCreate();
Array *descr = ArrayCreate();
Array *declarations = ArrayCreate();
DocDecl *decl = NULL;
Array *typedefs = ArrayCreate();
DocTypedef *type = NULL;
Array *globals = ArrayCreate();
DocGlobal *global = NULL;
char comment[HEADER_EXPR_MAX];
int isDocumented = 0;
Stream *in = NULL;
Stream *out = NULL;
int opt;
while ((opt = getopt(argc, argv, "i:o:D:")) != -1)
{
switch (opt)
{
case 'i':
if (in)
{
break;
}
if (StrEquals(optarg, "-"))
{
in = StreamStdin();
}
else
{
int len = strlen(optarg);
in = StreamOpen(optarg, "r");
if (!in)
{
StreamPrintf(StreamStderr(), "Error: %s:%s",
optarg, strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
while (optarg[len - 1] != '.')
{
optarg[len - 1] = '\0';
len--;
}
optarg[len - 1] = '\0';
len--;
HashMapSet(registers, "Nm", StrDuplicate(optarg));
}
break;
case 'o':
if (out)
{
break;
}
if (StrEquals(optarg, "-"))
{
out = StreamStdout();
}
else
{
out = StreamOpen(optarg, "w");
if (!out)
{
StreamPrintf(StreamStderr(), "Error: %s:%s",
optarg, strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
}
break;
case 'D':
val = optarg;
while (*val && *val != '=')
{
val++;
}
if (!*val || *val != '=')
{
StreamPrintf(StreamStderr(), "Bad register definition: %s",
optarg);
exit = EXIT_FAILURE;
goto finish;
}
*val = '\0';
val++;
HashMapSet(registers, optarg, StrDuplicate(val));
break;
}
}
if (!in)
{
in = StreamStdin();
}
if (!out)
{
out = StreamStdout();
}
memset(&expr, 0, sizeof(expr));
while (1)
{
HeaderParse(in, &expr);
switch (expr.type)
{
case HP_PREPROCESSOR_DIRECTIVE:
/* Ignore */
break;
case HP_EOF:
/* Done parsing */
goto last;
case HP_PARSE_ERROR:
case HP_SYNTAX_ERROR:
StreamPrintf(StreamStderr(), "Parse Error: (line %d) %s\n",
expr.data.error.lineNo, expr.data.error.msg);
exit = EXIT_FAILURE;
goto finish;
case HP_COMMENT:
if (expr.data.text[0] != '*')
{
break;
}
if (strncmp(expr.data.text, "**", 2) == 0)
{
ParseMainBlock(registers, descr, expr.data.text);
}
else
{
strncpy(comment, expr.data.text, sizeof(comment));
isDocumented = 1;
}
break;
case HP_TYPEDEF:
if (HashMapGet(registers, "ignore-typedefs"))
{
break;
}
if (!isDocumented)
{
StreamPrintf(StreamStderr(),
"Error: Undocumented typedef:\n%s\n",
expr.data.text);
exit = EXIT_FAILURE;
goto finish;
}
else
{
type = Malloc(sizeof(DocTypedef));
strncpy(type->docs, comment, sizeof(type->docs));
strncpy(type->text, expr.data.text, sizeof(type->text));
ArrayAdd(typedefs, type);
isDocumented = 0;
}
break;
case HP_DECLARATION:
if (!isDocumented)
{
StreamPrintf(StreamStderr(),
"Error: %s() is undocumented.\n",
expr.data.declaration.name);
exit = EXIT_FAILURE;
goto finish;
}
else
{
decl = Malloc(sizeof(DocDecl));
decl->decl = expr.data.declaration;
decl->decl.args = ArrayCreate();
strncpy(decl->docs, comment, sizeof(decl->docs));
for (i = 0; i < ArraySize(expr.data.declaration.args); i++)
{
ArrayAdd(decl->decl.args, StrDuplicate(ArrayGet(expr.data.declaration.args, i)));
}
ArrayAdd(declarations, decl);
isDocumented = 0;
}
break;
case HP_GLOBAL:
if (!isDocumented)
{
StreamPrintf(StreamStderr(),
"Error: Global %s is undocumented.\n",
expr.data.global.name);
exit = EXIT_FAILURE;
goto finish;
}
else
{
global = Malloc(sizeof(DocGlobal));
global->global = expr.data.global;
strncpy(global->docs, comment, sizeof(global->docs));
ArrayAdd(globals, global);
isDocumented = 0;
}
break;
case HP_UNKNOWN:
if (HashMapGet(registers, "suppress-warnings"))
{
break;
}
StreamPrintf(StreamStderr(), "Warning: Unknown expression: %s\n",
expr.data.text);
break;
default:
StreamPrintf(StreamStderr(), "Unknown header type: %d\n", expr.type);
StreamPrintf(StreamStderr(), "This is a programming error.\n");
exit = EXIT_FAILURE;
goto finish;
}
}
last:
val = HashMapGet(registers, "Nm");
if (!val)
{
HashMapSet(registers, "Nm", StrDuplicate("Unnamed"));
}
val = HashMapGet(registers, "Dd");
if (!val)
{
time_t currentTime;
struct tm *timeInfo;
char tsBuf[1024];
currentTime = time(NULL);
timeInfo = localtime(&currentTime);
strftime(tsBuf, sizeof(tsBuf), "%B %d %Y", timeInfo);
val = tsBuf;
}
StreamPrintf(out, ".Dd $%s: %s $\n", "Mdocdate", val);
val = HashMapGet(registers, "Os");
if (val)
{
StreamPrintf(out, ".Os %s\n", val);
}
val = HashMapGet(registers, "Nm");
StreamPrintf(out, ".Dt %s 3\n", val);
StreamPrintf(out, ".Sh NAME\n");
StreamPrintf(out, ".Nm %s\n", val);
val = HashMapGet(registers, "Nd");
if (!val)
{
val = "No Description.";
}
StreamPrintf(out, ".Nd %s\n", val);
StreamPrintf(out, ".Sh SYNOPSIS\n");
val = HashMapGet(registers, "Nm");
StreamPrintf(out, ".In %s.h\n", val);
for (i = 0; i < ArraySize(declarations); i++)
{
size_t j;
decl = ArrayGet(declarations, i);
StreamPrintf(out, ".Ft %s\n", decl->decl.returnType);
StreamPrintf(out, ".Fn %s ", decl->decl.name);
for (j = 0; j < ArraySize(decl->decl.args); j++)
{
StreamPrintf(out, "\"%s\" ", ArrayGet(decl->decl.args, j));
}
StreamPutc(out, '\n');
}
if (ArraySize(globals))
{
StreamPrintf(out, ".Sh GLOBALS\n");
for (i = 0; i < ArraySize(globals); i++)
{
char *line;
global = ArrayGet(globals, i);
StreamPrintf(out, ".Ss %s %s\n", global->global.type, global->global.name);
line = strtok(global->docs, "\n");
while (line)
{
while (*line && (isspace(*line) || *line == '*'))
{
line++;
}
if (*line)
{
StreamPrintf(out, "%s\n", line);
}
line = strtok(NULL, "\n");
}
}
}
if (ArraySize(typedefs))
{
StreamPrintf(out, ".Sh TYPE DECLARATIONS\n");
for (i = 0; i < ArraySize(typedefs); i++)
{
char *line;
type = ArrayGet(typedefs, i);
StreamPrintf(out, ".Bd -literal -offset indent\n");
StreamPrintf(out, "%s\n", type->text);
StreamPrintf(out, ".Ed\n.Pp\n");
line = strtok(type->docs, "\n");
while (line)
{
while (*line && (isspace(*line) || *line == '*'))
{
line++;
}
if (*line)
{
StreamPrintf(out, "%s\n", line);
}
line = strtok(NULL, "\n");
}
}
}
StreamPrintf(out, ".Sh DESCRIPTION\n");
for (i = 0; i < ArraySize(descr); i++)
{
StreamPrintf(out, "%s\n", ArrayGet(descr, i));
}
for (i = 0; i < ArraySize(declarations); i++)
{
size_t j;
char *line;
decl = ArrayGet(declarations, i);
StreamPrintf(out, ".Ss %s %s(",
decl->decl.returnType, decl->decl.name);
for (j = 0; j < ArraySize(decl->decl.args); j++)
{
StreamPrintf(out, "%s", ArrayGet(decl->decl.args, j));
if (j < ArraySize(decl->decl.args) - 1)
{
StreamPuts(out, ", ");
}
}
StreamPuts(out, ")\n");
line = strtok(decl->docs, "\n");
while (line)
{
while (*line && (isspace(*line) || *line == '*'))
{
line++;
}
if (*line)
{
StreamPrintf(out, "%s\n", line);
}
line = strtok(NULL, "\n");
}
}
val = HashMapGet(registers, "Xr");
if (val)
{
char *xr = strtok(val, " ");
StreamPrintf(out, ".Sh SEE ALSO\n");
while (xr)
{
if (*xr)
{
StreamPrintf(out, ".Xr %s 3 ", xr);
}
xr = strtok(NULL, " ");
if (xr)
{
StreamPutc(out, ',');
}
StreamPutc(out, '\n');
}
}
finish:
StreamClose(in);
StreamClose(out);
StreamClose(StreamStderr());
MemoryFreeAll();
return exit;
}

48
tools/src/intcheck.c
View File

@ -1,48 +0,0 @@
/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <Int.h>
#include <stdio.h>
#define ASSERT_SIZE(type, size) \
if ((sizeof(type) * 8) != size) \
{ \
fputs(#type " is not " #size " bits.\n", stderr); \
return 1; \
}
int
main(void)
{
ASSERT_SIZE(Int8, 8);
ASSERT_SIZE(UInt8, 8);
ASSERT_SIZE(Int16, 16);
ASSERT_SIZE(UInt16, 16);
ASSERT_SIZE(Int32, 32);
ASSERT_SIZE(UInt32, 32);
return 0;
}