forked from Telodendria/Telodendria
95 lines
2.1 KiB
C
95 lines
2.1 KiB
C
/*
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* Copyright (C) 2022-2023 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 <Io.h>
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#include <Memory.h>
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#include <fcntl.h>
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static ssize_t
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IoReadFd(void *cookie, void *buf, size_t nBytes)
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{
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int fd = *((int *) cookie);
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return read(fd, buf, nBytes);
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}
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static ssize_t
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IoWriteFd(void *cookie, void *buf, size_t nBytes)
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{
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int fd = *((int *) cookie);
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return write(fd, buf, nBytes);
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}
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static off_t
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IoSeekFd(void *cookie, off_t offset, int whence)
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{
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int fd = *((int *) cookie);
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return lseek(fd, offset, whence);
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}
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static int
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IoCloseFd(void *cookie)
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{
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int fd = *((int *) cookie);
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Free(cookie);
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return close(fd);
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}
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Io *
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IoFd(int fd)
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{
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int *cookie = Malloc(sizeof(int));
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IoFunctions f;
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if (!cookie)
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{
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return NULL;
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}
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*cookie = fd;
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f.read = IoReadFd;
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f.write = IoWriteFd;
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f.seek = IoSeekFd;
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f.close = IoCloseFd;
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return IoCreate(cookie, f);
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}
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Io *
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IoOpen(const char *path, int flags, mode_t mode)
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{
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int fd = open(path, flags, mode);
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if (fd == -1)
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{
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return NULL;
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}
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return IoFd(fd);
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}
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