forked from Telodendria/Telodendria
396 lines
7.7 KiB
C
396 lines
7.7 KiB
C
/*
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* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <Util.h>
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#include <Memory.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <math.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <limits.h>
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#ifndef PATH_MAX
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#define PATH_MAX 256
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#endif
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unsigned long
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UtilServerTs(void)
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{
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struct timeval tv;
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unsigned long ts;
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gettimeofday(&tv, NULL);
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ts = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
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return ts;
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}
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unsigned long
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UtilLastModified(char *path)
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{
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struct stat st;
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unsigned long ts;
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if (stat(path, &st) == 0)
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{
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ts = (st.st_mtim.tv_sec * 1000) + (st.st_mtim.tv_nsec / 1000000);
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return ts;
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}
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else
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{
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return 0;
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}
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}
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int
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UtilMkdir(const char *dir, const mode_t mode)
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{
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char tmp[PATH_MAX];
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char *p = NULL;
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struct stat st;
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size_t len;
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len = strnlen(dir, PATH_MAX);
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if (!len || len == PATH_MAX)
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{
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errno = ENAMETOOLONG;
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return -1;
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}
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memcpy(tmp, dir, len);
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tmp[len] = '\0';
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if (tmp[len - 1] == '/')
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{
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tmp[len - 1] = '\0';
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}
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if (stat(tmp, &st) == 0 && S_ISDIR(st.st_mode))
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{
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return 0;
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}
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for (p = tmp + 1; *p; p++)
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{
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if (*p == '/')
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{
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*p = 0;
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if (stat(tmp, &st) != 0)
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{
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if (mkdir(tmp, mode) < 0)
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{
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/* errno already set by mkdir() */
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return -1;
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}
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}
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else if (!S_ISDIR(st.st_mode))
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{
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errno = ENOTDIR;
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return -1;
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}
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*p = '/';
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}
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}
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if (stat(tmp, &st) != 0)
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{
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if (mkdir(tmp, mode) < 0)
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{
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/* errno already set by mkdir() */
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return -1;
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}
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}
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else if (!S_ISDIR(st.st_mode))
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{
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errno = ENOTDIR;
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return -1;
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}
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return 0;
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}
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char *
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UtilUtf8Encode(unsigned long utf8)
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{
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char *str;
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str = Malloc(5 * sizeof(char));
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if (!str)
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{
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return NULL;
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}
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if (utf8 <= 0x7F) /* Plain ASCII */
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{
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str[0] = (char) utf8;
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str[1] = '\0';
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}
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else if (utf8 <= 0x07FF) /* 2-byte */
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{
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str[0] = (char) (((utf8 >> 6) & 0x1F) | 0xC0);
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str[1] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
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str[2] = '\0';
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}
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else if (utf8 <= 0xFFFF) /* 3-byte */
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{
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str[0] = (char) (((utf8 >> 12) & 0x0F) | 0xE0);
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str[1] = (char) (((utf8 >> 6) & 0x3F) | 0x80);
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str[2] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
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str[3] = '\0';
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}
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else if (utf8 <= 0x10FFFF) /* 4-byte */
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{
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str[0] = (char) (((utf8 >> 18) & 0x07) | 0xF0);
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str[1] = (char) (((utf8 >> 12) & 0x3F) | 0x80);
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str[2] = (char) (((utf8 >> 6) & 0x3F) | 0x80);
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str[3] = (char) (((utf8 >> 0) & 0x3F) | 0x80);
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str[4] = '\0';
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}
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else
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{
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/* Send replacement character */
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str[0] = (char) 0xEF;
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str[1] = (char) 0xBF;
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str[2] = (char) 0xBD;
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str[3] = '\0';
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}
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return str;
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}
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char *
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UtilStringDuplicate(char *inStr)
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{
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size_t len;
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char *outStr;
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len = strlen(inStr);
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outStr = Malloc(len + 1); /* For the null terminator */
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if (!outStr)
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{
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return NULL;
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}
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strcpy(outStr, inStr);
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return outStr;
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}
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char *
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UtilStringConcat(char *str1, char *str2)
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{
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char *ret;
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size_t str1Len, str2Len;
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str1Len = str1 ? strlen(str1) : 0;
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str2Len = str2 ? strlen(str2) : 0;
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ret = Malloc(str1Len + str2Len + 1);
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if (!ret)
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{
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return NULL;
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}
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if (str1 && str2)
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{
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strcpy(ret, str1);
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strcpy(ret + str1Len, str2);
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}
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else
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{
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if (str1)
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{
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strcpy(ret, str1);
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}
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else if (str2)
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{
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strcpy(ret, str2);
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}
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else
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{
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strcpy(ret, "");
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}
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}
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return ret;
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}
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int
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UtilSleepMillis(long ms)
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{
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struct timespec ts;
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int res;
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ts.tv_sec = ms / 1000;
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ts.tv_nsec = (ms % 1000) * 1000000;
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res = nanosleep(&ts, &ts);
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return res;
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}
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size_t
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UtilParseBytes(char *str)
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{
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size_t bytes = 0;
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while (*str)
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{
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if (isdigit((unsigned char) *str))
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{
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bytes *= 10;
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bytes += *str - '0';
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}
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else
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{
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switch (*str)
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{
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case 'K':
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bytes *= 1024;
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break;
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case 'M':
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bytes *= pow(1024, 2);
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break;
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case 'G':
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bytes *= pow(1024, 3);
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break;
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case 'k':
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bytes *= 1000;
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break;
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case 'm':
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bytes *= pow(1000, 2);
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break;
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case 'g':
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bytes *= pow(1000, 3);
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break;
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default:
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return 0;
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}
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if (*(str + 1))
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{
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return 0;
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}
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}
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str++;
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}
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return bytes;
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}
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ssize_t
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UtilGetDelim(char **linePtr, size_t * n, int delim, FILE * stream)
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{
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char *curPos, *newLinePtr;
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size_t newLinePtrLen;
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int c;
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if (!linePtr || !n || !stream)
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{
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errno = EINVAL;
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return -1;
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}
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if (*linePtr == NULL)
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{
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*n = 128;
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if (!(*linePtr = Malloc(*n)))
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{
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errno = ENOMEM;
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return -1;
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}
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}
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curPos = *linePtr;
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while (1)
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{
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c = getc(stream);
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if (ferror(stream) || (c == EOF && curPos == *linePtr))
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{
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return -1;
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}
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if (c == EOF)
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{
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break;
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}
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if ((*linePtr + *n - curPos) < 2)
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{
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if (SSIZE_MAX / 2 < *n)
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{
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#ifdef EOVERFLOW
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errno = EOVERFLOW;
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#else
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errno = ERANGE;
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#endif
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return -1;
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}
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newLinePtrLen = *n * 2;
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if (!(newLinePtr = Realloc(*linePtr, newLinePtrLen)))
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{
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errno = ENOMEM;
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return -1;
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}
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curPos = newLinePtr + (curPos - *linePtr);
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*linePtr = newLinePtr;
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*n = newLinePtrLen;
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}
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*curPos++ = (char) c;
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if (c == delim)
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{
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break;
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}
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}
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*curPos = '\0';
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return (ssize_t) (curPos - *linePtr);
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}
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ssize_t
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UtilGetLine(char **linePtr, size_t * n, FILE * stream)
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{
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return UtilGetDelim(linePtr, n, '\n', stream);
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}
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