tests/test-getaddrinfo.c

   1 /* Test the getaddrinfo module.
   2
   3    Copyright (C) 2006-2011 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Simon Josefsson.  */
  19
  20 #include <config.h>
  21
  22 #include <netdb.h>
  23
  24 #include "signature.h"
  25 SIGNATURE_CHECK (freeaddrinfo, void, (struct addrinfo *));
  26 SIGNATURE_CHECK (gai_strerror, char const *, (int));
  27 SIGNATURE_CHECK (getaddrinfo, int, (char const *, char const *,
  28                                     struct addrinfo const *,
  29                                     struct addrinfo **));
  30
  31 #include <arpa/inet.h>
  32 #include <errno.h>
  33 #include <netinet/in.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36
  37 /* Whether to print debugging messages.  */
  38 #define ENABLE_DEBUGGING 0
  39
  40 #if ENABLE_DEBUGGING
  41 # define dbgprintf printf
  42 #else
  43 # define dbgprintf if (0) printf
  44 #endif
  45
  46 /* BeOS does not have AF_UNSPEC.  */
  47 #ifndef AF_UNSPEC
  48 # define AF_UNSPEC 0
  49 #endif
  50
  51 #ifndef EAI_SERVICE
  52 # define EAI_SERVICE 0
  53 #endif
  54
  55 static int
  56 simple (char const *host, char const *service)
  57 {
  58   char buf[BUFSIZ];
  59   static int skip = 0;
  60   struct addrinfo hints;
  61   struct addrinfo *ai0, *ai;
  62   int res;
  63   int err;
  64
  65   /* Once we skipped the test, do not try anything else */
  66   if (skip)
  67     return 0;
  68
  69   dbgprintf ("Finding %s service %s...\n", host, service);
  70
  71   /* This initializes "hints" but does not use it.  Is there a reason
  72      for this?  If so, please fix this comment.  */
  73   memset (&hints, 0, sizeof (hints));
  74   hints.ai_flags = AI_CANONNAME;
  75   hints.ai_family = AF_UNSPEC;
  76   hints.ai_socktype = SOCK_STREAM;
  77
  78   res = getaddrinfo (host, service, 0, &ai0);
  79   err = errno;
  80
  81   dbgprintf ("res %d: %s\n", res, gai_strerror (res));
  82
  83   if (res != 0)
  84     {
  85       /* EAI_AGAIN is returned if no network is available. Don't fail
  86          the test merely because someone is down the country on their
  87          in-law's farm. */
  88       if (res == EAI_AGAIN)
  89         {
  90           skip++;
  91           fprintf (stderr, "skipping getaddrinfo test: no network?\n");
  92           return 77;
  93         }
  94       /* IRIX reports EAI_NONAME for "https".  Don't fail the test
  95          merely because of this.  */
  96       if (res == EAI_NONAME)
  97         return 0;
  98       /* Solaris reports EAI_SERVICE for "http" and "https".  Don't
  99          fail the test merely because of this.  */
 100       if (res == EAI_SERVICE)
 101         return 0;
 102 #ifdef EAI_NODATA
 103       /* AIX reports EAI_NODATA for "https".  Don't fail the test
 104          merely because of this.  */
 105       if (res == EAI_NODATA)
 106         return 0;
 107 #endif
 108       /* Provide details if errno was set.  */
 109       if (res == EAI_SYSTEM)
 110         dbgprintf ("system error: %s\n", strerror (err));
 111
 112       return 1;
 113     }
 114
 115   for (ai = ai0; ai; ai = ai->ai_next)
 116     {
 117       dbgprintf ("\tflags %x\n", ai->ai_flags);
 118       dbgprintf ("\tfamily %x\n", ai->ai_family);
 119       dbgprintf ("\tsocktype %x\n", ai->ai_socktype);
 120       dbgprintf ("\tprotocol %x\n", ai->ai_protocol);
 121       dbgprintf ("\taddrlen %ld: ", (unsigned long) ai->ai_addrlen);
 122       dbgprintf ("\tFound %s\n",
 123                  inet_ntop (ai->ai_family,
 124                             &((struct sockaddr_in *)
 125                               ai->ai_addr)->sin_addr,
 126                             buf, sizeof (buf) - 1));
 127       if (ai->ai_canonname)
 128         dbgprintf ("\tFound %s...\n", ai->ai_canonname);
 129
 130       {
 131         char ipbuf[BUFSIZ];
 132         char portbuf[BUFSIZ];
 133
 134         res = getnameinfo (ai->ai_addr, ai->ai_addrlen,
 135                            ipbuf, sizeof (ipbuf) - 1,
 136                            portbuf, sizeof (portbuf) - 1,
 137                            NI_NUMERICHOST|NI_NUMERICSERV);
 138         dbgprintf ("\t\tgetnameinfo %d: %s\n", res, gai_strerror (res));
 139         if (res == 0)
 140           {
 141             dbgprintf ("\t\tip %s\n", ipbuf);
 142             dbgprintf ("\t\tport %s\n", portbuf);
 143           }
 144       }
 145
 146     }
 147
 148   freeaddrinfo (ai0);
 149
 150   return 0;
 151 }
 152
 153 #define HOST1 "www.gnu.org"
 154 #define SERV1 "http"
 155 #define HOST2 "www.ibm.com"
 156 #define SERV2 "https"
 157 #define HOST3 "microsoft.com"
 158 #define SERV3 "http"
 159 #define HOST4 "google.org"
 160 #define SERV4 "ldap"
 161
 162 int main (void)
 163 {
 164   return simple (HOST1, SERV1)
 165     + simple (HOST2, SERV2)
 166     + simple (HOST3, SERV3)
 167     + simple (HOST4, SERV4);
 168 }