1 /* Test listing of network interface addresses.
2 Copyright (C) 2002-2019 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, see
17 <https://www.gnu.org/licenses/>. */
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
30 addr_string (struct sockaddr
*sa
, char *buf
, size_t size
)
35 switch (sa
->sa_family
)
38 return inet_ntop (AF_INET
, &((struct sockaddr_in
*) sa
)->sin_addr
,
41 return inet_ntop (AF_INET6
, &((struct sockaddr_in6
*) sa
)->sin6_addr
,
57 printf ("sa_family=%d %08x\n", sa
->sa_family
,
58 *(int*)&((struct sockaddr_in
*) sa
)->sin_addr
.s_addr
);
59 return "<unexpected sockaddr family>";
67 struct ifaddrs
*ifaces
, *ifa
;
69 if (getifaddrs (&ifaces
) < 0)
73 printf ("Couldn't get any interfaces: %s.\n", strerror (errno
));
76 /* The function is simply not implemented. */
81 Name Flags Address Netmask Broadcast/Destination");
83 for (ifa
= ifaces
; ifa
!= NULL
; ifa
= ifa
->ifa_next
)
85 char abuf
[64], mbuf
[64], dbuf
[64];
86 printf ("%-15s%#.4x %-15s %-15s %-15s\n",
87 ifa
->ifa_name
, ifa
->ifa_flags
,
88 addr_string (ifa
->ifa_addr
, abuf
, sizeof (abuf
)),
89 addr_string (ifa
->ifa_netmask
, mbuf
, sizeof (mbuf
)),
90 addr_string (ifa
->ifa_broadaddr
, dbuf
, sizeof (dbuf
)));
95 return failures
? 1 : 0;
98 #define TEST_FUNCTION do_test ()
99 #include "../test-skeleton.c"