1/* $Id$ */
2
3/***
4  This file is part of avahi.
5
6  avahi is free software; you can redistribute it and/or modify it
7  under the terms of the GNU Lesser General Public License as
8  published by the Free Software Foundation; either version 2.1 of the
9  License, or (at your option) any later version.
10
11  avahi is distributed in the hope that it will be useful, but WITHOUT
12  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
14  Public License for more details.
15
16  You should have received a copy of the GNU Lesser General Public
17  License along with avahi; if not, write to the Free Software
18  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19  USA.
20***/
21
22#ifdef HAVE_CONFIG_H
23#include <config.h>
24#endif
25
26#ifdef HAVE_DLOPEN
27#include <dlfcn.h>
28#endif
29#include <stdlib.h>
30
31#include "client.h"
32
33int avahi_nss_support(void) {
34    int b = 0;
35
36#ifdef HAVE_DLOPEN
37    static const char * const libs[] = {
38        "libnss_mdns.so.2",
39        "libnss_mdns4.so.2",
40        "libnss_mdns6.so.2",
41        NULL };
42
43    const char * const *l;
44
45    for (l = libs; *l; l++) {
46        void *dl;
47
48        if ((dl = dlopen(*l, RTLD_LAZY))) {
49            b = 1;
50            dlclose(dl);
51            break;
52        }
53    }
54#endif
55
56    return b;
57}
58