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 #endif
  30
  31 #ifdef HAVE_INET_NTOP
  32 #define rep_inet_ntop inet_ntop
  33 #endif
  34
  35 static const char *format_sockaddr(struct sockaddr *addr,
  36                                    char *addrstring,
  37                                    socklen_t addrlen)
  38 {
  39         const char *result = NULL;
  40
  41         if (addr->sa_family == AF_INET) {
  42                 result = rep_inet_ntop(AF_INET,
  43                                        &((struct sockaddr_in *)addr)->sin_addr,
  44                                        addrstring,
  45                                        addrlen);
  46 #ifdef HAVE_STRUCT_SOCKADDR_IN6
  47         } else if (addr->sa_family == AF_INET6) {
  48                 result = rep_inet_ntop(AF_INET6,
  49                                        &((struct sockaddr_in6 *)addr)->sin6_addr,
  50                                        addrstring,
  51                                        addrlen);
  52 #endif
  53         }
  54         return result;
  55 }
  56
  57 int getifaddrs_test(void)
  58 {
  59         struct ifaddrs *ifs = NULL;
  60         struct ifaddrs *ifs_head = NULL;
  61         int ret;
  62
  63         ret = getifaddrs(&ifs);
  64         ifs_head = ifs;
  65         if (ret != 0) {
  66                 fprintf(stderr, "getifaddrs() failed: %s\n", strerror(errno));
  67                 return 1;
  68         }
  69
  70         while (ifs) {
  71                 printf("%-10s ", ifs->ifa_name);
  72                 if (ifs->ifa_addr != NULL) {
  73                         char addrstring[INET6_ADDRSTRLEN];
  74                         const char *result;
  75
  76                         result = format_sockaddr(ifs->ifa_addr,
  77                                                  addrstring,
  78                                                  sizeof(addrstring));
  79                         if (result != NULL) {
  80                                 printf("IP=%s ", addrstring);
  81                         }
  82
  83                         if (ifs->ifa_netmask != NULL) {
  84                                 result = format_sockaddr(ifs->ifa_netmask,
  85                                                          addrstring,
  86                                                          sizeof(addrstring));
  87                                 if (result != NULL) {
  88                                         printf("NETMASK=%s", addrstring);
  89                                 }
  90                         } else {
  91                                 printf("AF=%d ", ifs->ifa_addr->sa_family);
  92                         }
  93                 } else {
  94                         printf("<no address>");
  95                 }
  96
  97                 printf("\n");
  98                 ifs = ifs->ifa_next;
  99         }
 100
 101         freeifaddrs(ifs_head);
 102
 103         return 0;
 104 }