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/***
This file is part of avahi.
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
avahi is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <assert.h>
#include <limits.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "xdg-config.h"
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
FILE *avahi_xdg_config_open(const char *filename) {
FILE *f;
const char *e, *d;
char fn[PATH_MAX], *p = NULL, buf[2048], *s = NULL;
assert(filename);
if ((e = getenv("XDG_CONFIG_HOME")) && *e)
snprintf(p = fn, sizeof(fn), "%s/%s", e, filename);
else if ((e = getenv("HOME")) && *e)
snprintf(p = fn, sizeof(fn), "%s/.config/%s", e, filename);
if (p) {
if ((f = fopen(p, "r")))
return f;
else if (errno != ENOENT)
return NULL;
}
if (!(d = getenv("XDG_CONFIG_DIRS")) || !*d)
d = "/etc/xdg";
snprintf(buf, sizeof(buf), "%s", d);
for (e = strtok_r(buf, ":", &s); e; e = strtok_r(NULL, ":", &s)) {
snprintf(fn, sizeof(fn), "%s/%s", e, filename);
if ((f = fopen(fn, "r")))
return f;
}
return NULL;
}
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