144099b7bSPaul Traina /*
244099b7bSPaul Traina * trygetif.c - test program for getif.c
344099b7bSPaul Traina */
444099b7bSPaul Traina
544099b7bSPaul Traina #include <sys/types.h>
644099b7bSPaul Traina #include <sys/socket.h>
744099b7bSPaul Traina
844099b7bSPaul Traina #if defined(SUNOS) || defined(SVR4)
944099b7bSPaul Traina #include <sys/sockio.h>
1044099b7bSPaul Traina #endif
1144099b7bSPaul Traina
12e08ac58bSPaul Traina #ifdef _AIX32
13e08ac58bSPaul Traina #include <sys/time.h> /* for struct timeval in net/if.h */
14e08ac58bSPaul Traina #endif
1544099b7bSPaul Traina #include <net/if.h> /* for struct ifreq */
1644099b7bSPaul Traina #include <netinet/in.h>
1744099b7bSPaul Traina #include <arpa/inet.h> /* inet_ntoa */
1844099b7bSPaul Traina
1944099b7bSPaul Traina #include <netdb.h>
2044099b7bSPaul Traina #include <stdio.h>
2144099b7bSPaul Traina #include <ctype.h>
2244099b7bSPaul Traina #include <errno.h>
2344099b7bSPaul Traina
2444099b7bSPaul Traina #include "getif.h"
2544099b7bSPaul Traina
2644099b7bSPaul Traina int debug = 0;
2744099b7bSPaul Traina char *progname;
2844099b7bSPaul Traina
29e08ac58bSPaul Traina void
main(argc,argv)3044099b7bSPaul Traina main(argc, argv)
31e08ac58bSPaul Traina int argc;
3244099b7bSPaul Traina char **argv;
3344099b7bSPaul Traina {
3444099b7bSPaul Traina struct hostent *hep;
3544099b7bSPaul Traina struct sockaddr_in *sip; /* Interface address */
3644099b7bSPaul Traina struct ifreq *ifr;
3744099b7bSPaul Traina struct in_addr dst_addr;
3844099b7bSPaul Traina struct in_addr *dap;
39e08ac58bSPaul Traina int s;
4044099b7bSPaul Traina
4144099b7bSPaul Traina progname = argv[0]; /* for report */
4244099b7bSPaul Traina
4344099b7bSPaul Traina dap = NULL;
4444099b7bSPaul Traina if (argc > 1) {
4544099b7bSPaul Traina dap = &dst_addr;
46e08ac58bSPaul Traina if (isdigit(argv[1][0]))
47e08ac58bSPaul Traina dst_addr.s_addr = inet_addr(argv[1]);
48e08ac58bSPaul Traina else {
4944099b7bSPaul Traina hep = gethostbyname(argv[1]);
5044099b7bSPaul Traina if (!hep) {
5144099b7bSPaul Traina printf("gethostbyname(%s)\n", argv[1]);
5244099b7bSPaul Traina exit(1);
5344099b7bSPaul Traina }
5444099b7bSPaul Traina memcpy(&dst_addr, hep->h_addr, sizeof(dst_addr));
5544099b7bSPaul Traina }
5644099b7bSPaul Traina }
5744099b7bSPaul Traina s = socket(AF_INET, SOCK_DGRAM, 0);
5844099b7bSPaul Traina if (s < 0) {
5944099b7bSPaul Traina perror("socket open");
6044099b7bSPaul Traina exit(1);
6144099b7bSPaul Traina }
6244099b7bSPaul Traina ifr = getif(s, dap);
6344099b7bSPaul Traina if (!ifr) {
6444099b7bSPaul Traina printf("no interface for address\n");
6544099b7bSPaul Traina exit(1);
6644099b7bSPaul Traina }
6744099b7bSPaul Traina printf("Intf-name:%s\n", ifr->ifr_name);
6844099b7bSPaul Traina sip = (struct sockaddr_in *) &(ifr->ifr_addr);
6944099b7bSPaul Traina printf("Intf-addr:%s\n", inet_ntoa(sip->sin_addr));
7044099b7bSPaul Traina
7144099b7bSPaul Traina exit(0);
7244099b7bSPaul Traina }
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