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