Update.
[glibc.git] / inet / test-ifaddrs.c
blob7efca25337b2e245998e9633e0ae7ef38141e650
1 /* Test listing of network interface addresses.
2 Copyright (C) 2002, 2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <ifaddrs.h>
25 #include <netinet/in.h>
26 #include <arpa/inet.h>
28 static int failures;
30 static const char *
31 addr_string (struct sockaddr *sa, char *buf, size_t size)
33 if (sa == NULL)
34 return "<none>";
36 switch (sa->sa_family)
38 case AF_INET:
39 return inet_ntop (AF_INET, &((struct sockaddr_in *) sa)->sin_addr,
40 buf, size);
41 case AF_INET6:
42 return inet_ntop (AF_INET6, &((struct sockaddr_in6 *) sa)->sin6_addr,
43 buf, size);
44 #ifdef AF_LINK
45 case AF_LINK:
46 return "<link>";
47 #endif
48 case AF_UNSPEC:
49 return "---";
51 #ifdef AF_PACKET
52 case AF_PACKET:
53 return "<packet>";
54 #endif
56 default:
57 ++failures;
58 printf ("sa_family=%d %08x\n", sa->sa_family,
59 *(int*)&((struct sockaddr_in *) sa)->sin_addr.s_addr);
60 return "<unexpected sockaddr family>";
65 int
66 main (void)
68 struct ifaddrs *ifaces, *ifa;
70 if (getifaddrs (&ifaces) < 0)
72 if (errno != ENOSYS)
74 printf ("Couldn't get any interfaces: %s.\n", strerror (errno));
75 exit (1);
77 /* The function is simply not implemented. */
78 exit (0);
81 puts ("\
82 Name Flags Address Netmask Broadcast/Destination");
84 for (ifa = ifaces; ifa != NULL; ifa = ifa->ifa_next)
86 char abuf[64], mbuf[64], dbuf[64];
87 printf ("%-15s%#.4x %-15s %-15s %-15s\n",
88 ifa->ifa_name, ifa->ifa_flags,
89 addr_string (ifa->ifa_addr, abuf, sizeof (abuf)),
90 addr_string (ifa->ifa_netmask, mbuf, sizeof (mbuf)),
91 addr_string (ifa->ifa_broadaddr, dbuf, sizeof (dbuf)));
94 freeifaddrs (ifaces);
96 return failures ? 1 : 0;