tests/check_ifaddrs.c

   1 #include <stdio.h>
   2 #include <arpa/inet.h>
   3 #include <check.h>
   4 #include "../src/lldpd.h"
   5
   6 #define DUMP "ifdump.txt"
   7
   8 /* This is not a real test. It should dump into a file the list of interfaces */
   9
  10 static const char *
  11 addr_string (struct sockaddr *sa) {
  12         static char buf[64];
  13         const char *res;
  14         if (sa == NULL)
  15                 return "NULL";
  16         switch (sa->sa_family) {
  17         case AF_INET:
  18                 res = inet_ntop(AF_INET,
  19                     &((struct sockaddr_in *)sa)->sin_addr,
  20                     buf, sizeof(buf));
  21                 break;
  22         case AF_INET6:
  23                 res = inet_ntop(AF_INET6,
  24                     &((struct sockaddr_in6 *)sa)->sin6_addr,
  25                     buf, sizeof(buf));
  26                 break;
  27         case AF_UNSPEC:
  28                 return "<--->";
  29         case AF_PACKET:
  30                 return "<pkt>";
  31         default:
  32                 snprintf(buf, 64, "<%4d>", sa->sa_family);
  33                 return buf;
  34         }
  35         strcpy(buf, res);
  36         if (strlen(buf) > 26)
  37                 memcpy(buf + 21, "[...]", strlen("[...]") + 1);
  38         return buf;
  39 }
  40
  41 START_TEST (test_ifaddrs)
  42 {
  43         struct ifaddrs *ifap, *ifa;
  44         FILE* dump;
  45
  46         if (getifaddrs(&ifap) < 0) {
  47                 fail("unable to get interface list");
  48                 return;
  49         }
  50         dump = fopen(DUMP, "w+");
  51         if (dump == NULL) {
  52                 fail("unable to open dump file " DUMP);
  53                 return;
  54         }
  55         fprintf(dump,
  56             "Name           Flags    Address                    Netmask                    Broadcast/Destination\n");
  57         for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
  58                 fprintf(dump, "%-15s%#.5x  ",
  59                     ifa->ifa_name, ifa->ifa_flags);
  60                 fprintf(dump, "%-26s ",
  61                     addr_string(ifa->ifa_addr));
  62                 fprintf(dump, "%-26s ",
  63                     addr_string(ifa->ifa_netmask));
  64                 fprintf(dump, "%-26s\n",
  65                     addr_string(ifa->ifa_broadaddr));
  66         }
  67         fclose(dump);
  68 }
  69 END_TEST
  70
  71 Suite *
  72 ifaddrs_suite(void)
  73 {
  74         Suite *s = suite_create("getifaddrs");
  75
  76         /* Single objects packing/unpacking */
  77         TCase *tc_core = tcase_create("getifaddrs");
  78         tcase_add_test(tc_core, test_ifaddrs);
  79         suite_add_tcase(s, tc_core);
  80
  81         return s;
  82 }
  83
  84 int
  85 main()
  86 {
  87         int number_failed;
  88         Suite *s = ifaddrs_suite ();
  89         SRunner *sr = srunner_create (s);
  90         srunner_run_all (sr, CK_ENV);
  91         number_failed = srunner_ntests_failed (sr);
  92         srunner_free (sr);
  93         return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
  94 }