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  *   ** NOTE! The following LGPL license applies to the replace
   9  *   ** library. This does NOT imply that all of Samba is released
  10  *   ** under the LGPL
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 3 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Library General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #ifndef AUTOCONF_TEST
  27 #include "replace.h"
  28 #include "system/network.h"
  29 #include "replace-test.h"
  30 #endif
  31
  32 #ifdef HAVE_INET_NTOP
  33 #define rep_inet_ntop inet_ntop
  34 #endif
  35
  36 static const char *format_sockaddr(struct sockaddr *addr,
  37                                    char *addrstring,
  38                                    socklen_t addrlen)
  39 {
  40         const char *result = NULL;
  41
  42         if (addr->sa_family == AF_INET) {
  43                 result = rep_inet_ntop(AF_INET,
  44                                        &((struct sockaddr_in *)addr)->sin_addr,
  45                                        addrstring,
  46                                        addrlen);
  47 #ifdef HAVE_STRUCT_SOCKADDR_IN6
  48         } else if (addr->sa_family == AF_INET6) {
  49                 result = rep_inet_ntop(AF_INET6,
  50                                        &((struct sockaddr_in6 *)addr)->sin6_addr,
  51                                        addrstring,
  52                                        addrlen);
  53 #endif
  54         }
  55         return result;
  56 }
  57
  58 int getifaddrs_test(void)
  59 {
  60         struct ifaddrs *ifs = NULL;
  61         struct ifaddrs *ifs_head = NULL;
  62         int ret;
  63
  64         ret = getifaddrs(&ifs);
  65         ifs_head = ifs;
  66         if (ret != 0) {
  67                 fprintf(stderr, "getifaddrs() failed: %s\n", strerror(errno));
  68                 return 1;
  69         }
  70
  71         while (ifs) {
  72                 printf("%-10s ", ifs->ifa_name);
  73                 if (ifs->ifa_addr != NULL) {
  74                         char addrstring[INET6_ADDRSTRLEN];
  75                         const char *result;
  76
  77                         result = format_sockaddr(ifs->ifa_addr,
  78                                                  addrstring,
  79                                                  sizeof(addrstring));
  80                         if (result != NULL) {
  81                                 printf("IP=%s ", addrstring);
  82                         }
  83
  84                         if (ifs->ifa_netmask != NULL) {
  85                                 result = format_sockaddr(ifs->ifa_netmask,
  86                                                          addrstring,
  87                                                          sizeof(addrstring));
  88                                 if (result != NULL) {
  89                                         printf("NETMASK=%s", addrstring);
  90                                 }
  91                         } else {
  92                                 printf("AF=%d ", ifs->ifa_addr->sa_family);
  93                         }
  94                 } else {
  95                         printf("<no address>");
  96                 }
  97
  98                 printf("\n");
  99                 ifs = ifs->ifa_next;
 100         }
 101
 102         freeifaddrs(ifs_head);
 103
 104         return 0;
 105 }