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[FreeBSD/releng/10.0.git] / libexec / bootpd / trygetif.c
1 /*
2  * trygetif.c - test program for getif.c
3  *
4  * $FreeBSD$
5  */
6
7 #include <sys/types.h>
8 #include <sys/socket.h>
9
10 #if defined(SUNOS) || defined(SVR4)
11 #include <sys/sockio.h>
12 #endif
13
14 #ifdef _AIX32
15 #include <sys/time.h>   /* for struct timeval in net/if.h */
16 #endif
17 #include <net/if.h>                             /* for struct ifreq */
18 #include <netinet/in.h>
19 #include <arpa/inet.h>                  /* inet_ntoa */
20
21 #include <netdb.h>
22 #include <stdio.h>
23 #include <ctype.h>
24 #include <errno.h>
25
26 #include "getif.h"
27
28 int debug = 0;
29 char *progname;
30
31 void
32 main(argc, argv)
33         int argc;
34         char **argv;
35 {
36         struct hostent *hep;
37         struct sockaddr_in *sip;        /* Interface address */
38         struct ifreq *ifr;
39         struct in_addr dst_addr;
40         struct in_addr *dap;
41         int s;
42
43         progname = argv[0];                     /* for report */
44
45         dap = NULL;
46         if (argc > 1) {
47                 dap = &dst_addr;
48                 if (isdigit(argv[1][0]))
49                         dst_addr.s_addr = inet_addr(argv[1]);
50                 else {
51                         hep = gethostbyname(argv[1]);
52                         if (!hep) {
53                                 printf("gethostbyname(%s)\n", argv[1]);
54                                 exit(1);
55                         }
56                         memcpy(&dst_addr, hep->h_addr, sizeof(dst_addr));
57                 }
58         }
59         s = socket(AF_INET, SOCK_DGRAM, 0);
60         if (s < 0) {
61                 perror("socket open");
62                 exit(1);
63         }
64         ifr = getif(s, dap);
65         if (!ifr) {
66                 printf("no interface for address\n");
67                 exit(1);
68         }
69         printf("Intf-name:%s\n", ifr->ifr_name);
70         sip = (struct sockaddr_in *) &(ifr->ifr_addr);
71         printf("Intf-addr:%s\n", inet_ntoa(sip->sin_addr));
72
73         exit(0);
74 }