lib/replace/test/getifaddrs.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  *
   4  * libreplace getifaddrs test
   5  *
   6  * Copyright (C) Michael Adam <obnox@samba.org> 2008
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 3 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #ifndef AUTOCONF_TEST
  23 #include "replace.h"
  24 #include "system/network.h"
  25 #include "replace-test.h"
  26 #endif
  27
  28 #ifdef HAVE_INET_NTOP
  29 #define rep_inet_ntop inet_ntop
  30 #endif
  31
  32 static const char *format_sockaddr(struct sockaddr *addr,
  33                                    char *addrstring,
  34                                    socklen_t addrlen)
  35 {
  36         const char *result = NULL;
  37
  38         if (addr->sa_family == AF_INET) {
  39                 result = rep_inet_ntop(AF_INET,
  40                                        &((struct sockaddr_in *)addr)->sin_addr,
  41                                        addrstring,
  42                                        addrlen);
  43 #ifdef HAVE_STRUCT_SOCKADDR_IN6
  44         } else if (addr->sa_family == AF_INET6) {
  45                 result = rep_inet_ntop(AF_INET6,
  46                                        &((struct sockaddr_in6 *)addr)->sin6_addr,
  47                                        addrstring,
  48                                        addrlen);
  49 #endif
  50         }
  51         return result;
  52 }
  53
  54 int getifaddrs_test(void)
  55 {
  56         struct ifaddrs *ifs = NULL;
  57         struct ifaddrs *ifs_head = NULL;
  58         int ret;
  59
  60         ret = getifaddrs(&ifs);
  61         ifs_head = ifs;
  62         if (ret != 0) {
  63                 fprintf(stderr, "getifaddrs() failed: %s\n", strerror(errno));
  64                 return 1;
  65         }
  66
  67         while (ifs) {
  68                 printf("%-10s ", ifs->ifa_name);
  69                 if (ifs->ifa_addr != NULL) {
  70                         char addrstring[INET6_ADDRSTRLEN];
  71                         const char *result;
  72
  73                         result = format_sockaddr(ifs->ifa_addr,
  74                                                  addrstring,
  75                                                  sizeof(addrstring));
  76                         if (result != NULL) {
  77                                 printf("IP=%s ", addrstring);
  78                         }
  79
  80                         if (ifs->ifa_netmask != NULL) {
  81                                 result = format_sockaddr(ifs->ifa_netmask,
  82                                                          addrstring,
  83                                                          sizeof(addrstring));
  84                                 if (result != NULL) {
  85                                         printf("NETMASK=%s", addrstring);
  86                                 }
  87                         } else {
  88                                 printf("AF=%d ", ifs->ifa_addr->sa_family);
  89                         }
  90                 } else {
  91                         printf("<no address>");
  92                 }
  93
  94                 printf("\n");
  95                 ifs = ifs->ifa_next;
  96         }
  97
  98         freeifaddrs(ifs_head);
  99
 100         return 0;
 101 }