1 /* $OpenBSD: ifnitest.c,v 1.3 2017/02/25 07:28:32 jsg Exp $ */
2
3 /* Public domain. 2015, Claudio Jeker */
4
5 #include <sys/types.h>
6 #include <sys/socket.h>
7 #include <net/if.h>
8 #include <err.h>
9 #include <stdio.h>
10 #include <string.h>
11
12 int
main(int argc,char * argv[])13 main(int argc, char *argv[])
14 {
15 char name[IF_NAMESIZE], *ifname;
16 unsigned int lo0index;
17
18 lo0index = if_nametoindex("lo0");
19 if (lo0index == 0)
20 err(1, "if_nametoindex(lo0)");
21 ifname = if_indextoname(lo0index, name);
22 if (ifname == NULL || strcmp("lo0", ifname) != 0)
23 err(1, "if_indextoname(%u)", lo0index);
24
25 /* test failures */
26 if (if_nametoindex("4kingbula") != 0)
27 err(1, "if_nametoindex(4kingbula)");
28 if (if_indextoname(65536, name) != NULL)
29 err(1, "if_indextoname(%u)", 65536);
30
31 return 0;
32 }
33