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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2005 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* 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 OF THIRD PARTY RIGHTS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
* CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
* COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
* SOFTWARE IS DISCLAIMED.
*
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <malloc.h>
#include <string.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/mman.h>
char *textfile_get(const char *pathname, const char *key)
{
struct stat st;
char *map, *off, *end, *str = NULL;
off_t size; size_t len;
int fd;
fd = open(pathname, O_RDONLY);
if (fd < 0)
return NULL;
if (flock(fd, LOCK_SH) < 0)
goto close;
if (fstat(fd, &st) < 0)
goto unlock;
size = st.st_size;
map = mmap(0, size, PROT_READ, MAP_SHARED, fd, 0);
if (map == MAP_FAILED)
goto close;
off = strstr(map, key);
if (!off)
goto unmap;
if (off > map) {
while (*(off - 1) != '\r' && *(off - 1) != '\n') {
off = strstr(map, key);
if (!off)
goto unmap;
}
}
end = strpbrk(off, "\r\n");
if (!end)
goto unmap;
len = strlen(key);
str = malloc(end - off - len);
memset(str, 0, end - off - len);
if (!str)
goto unmap;
strncpy(str, off + len + 1, end - off - len - 1);
unmap:
munmap(map, size);
unlock:
flock(fd, LOCK_UN);
close:
close(fd);
return str;
}
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