tests/test_getnameinfo.c

   1 #include <netdb.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <assert.h>
   5 #include <sys/socket.h>
   6 #include <netinet/in.h>
   7
   8 #define     satosin(x)      ((struct sockaddr_in *) &(x))
   9 #define     SOCKADDR(x)     (satosin(x)->sin_addr.s_addr)
  10 #define     SOCKADDR_2(x)     (satosin(x)->sin_addr)
  11 #define     SOCKPORT(x)     (satosin(x)->sin_port)
  12 #define     SOCKFAMILY(x)     (satosin(x)->sin_family)
  13
  14 #define ASSERT(X) { if(!(X)) printf("ASSERTION FAILED: %s @%s:%d\n", # X, __FILE__, __LINE__); }
  15 #define CLR() { hbuf[0] = 0; sbuf[0] = 0; }
  16
  17 int main() {
  18         struct sockaddr_in a = {0}, *sa = &a;
  19         char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];
  20         a.sin_port = htons(80);
  21         memcpy(  &a.sin_addr   , (char[]) {127,0,0,1}, 4);
  22
  23         int ret;
  24
  25         if ((ret = getnameinfo((void*)sa, 0, hbuf, sizeof(hbuf), sbuf,
  26             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  27                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  28         else
  29                 printf("%s\n", gai_strerror(ret));
  30
  31         ASSERT(ret == EAI_FAMILY);
  32         CLR();
  33
  34         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, sizeof(hbuf), sbuf,
  35             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  36                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  37         else
  38                 printf("%s\n", gai_strerror(ret));
  39
  40         ASSERT(ret == EAI_FAMILY);
  41         CLR();
  42
  43         SOCKFAMILY(a) = AF_INET;
  44
  45         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, 1, sbuf,
  46             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  47                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  48         else
  49                 printf("%s\n", gai_strerror(ret));
  50
  51         ASSERT(ret == EAI_OVERFLOW);
  52         CLR();
  53
  54         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, 0, sbuf,
  55             1, NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  56                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  57         else
  58                 printf("%s\n", gai_strerror(ret));
  59
  60         ASSERT(ret == EAI_OVERFLOW);
  61         CLR();
  62
  63         if ((ret = getnameinfo((void*)sa, sizeof(a) - 1, hbuf, 0, sbuf,
  64             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  65                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  66         else
  67                 printf("%s\n", gai_strerror(ret));
  68
  69         ASSERT(ret == EAI_FAMILY);
  70         CLR();
  71
  72         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, 0, sbuf,
  73             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  74                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  75         else
  76                 printf("%s\n", gai_strerror(ret));
  77
  78         ASSERT(ret == 0 && !strcmp("80", sbuf));
  79         CLR();
  80
  81         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, sizeof hbuf, sbuf,
  82             0, NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  83                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  84         else
  85                 printf("%s\n", gai_strerror(ret));
  86
  87         ASSERT(ret == 0 && !strcmp("127.0.0.1",hbuf));
  88         CLR();
  89
  90
  91         if ((ret = getnameinfo((void*)sa, sizeof a, hbuf, sizeof(hbuf), sbuf,
  92             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
  93                 printf("host=%s, serv=%s\n", hbuf, sbuf);
  94         else
  95                 printf("%s\n", gai_strerror(ret));
  96
  97         ASSERT(ret == 0 && !strcmp("127.0.0.1",hbuf) && !strcmp("80", sbuf));
  98         CLR();
  99
 100         struct sockaddr_in6 b = {0}, *sb = &b;
 101         b.sin6_port = htons(8080);
 102         b.sin6_family = AF_INET6;
 103
 104         memcpy(&b.sin6_addr,"\0\0\0\0\0\0\0\0\0\0\xff\xff\xc0\xa8\1\2", 16);
 105
 106         if ((ret = getnameinfo((void*)sb, sizeof b, hbuf, sizeof(hbuf), sbuf,
 107             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV)) == 0)
 108                 printf("host=%s, serv=%s\n", hbuf, sbuf);
 109         else
 110                 printf("%s\n", gai_strerror(ret));
 111
 112         ASSERT(ret == 0 && !strcmp("192.168.1.2",hbuf) && !strcmp("8080", sbuf));
 113         CLR();
 114
 115         b.sin6_scope_id = 3;
 116         memcpy(&b.sin6_addr,"\0\0\xaa\0\0\0\0\0\0\0\0\xff\xc0\xa8\1\2", 16);
 117
 118         if ((ret = getnameinfo((void*)sb, sizeof b, hbuf, sizeof(hbuf), sbuf,
 119             sizeof(sbuf), NI_NUMERICHOST | NI_NUMERICSERV | NI_NUMERICSCOPE)) == 0)
 120                 printf("host=%s, serv=%s\n", hbuf, sbuf);
 121         else
 122                 printf("%s\n", gai_strerror(ret));
 123
 124         ASSERT(ret == 0);
 125
 126         b.sin6_port = 0;
 127         b.sin6_scope_id = 0;
 128         memcpy(&b.sin6_addr,"\0\0\0\0" "\0\0\0\0" "\0\0\0\0" "\0\0\0\1", 16);
 129
 130         if ((ret = getnameinfo((void*)sb, sizeof b, hbuf, sizeof(hbuf), NULL,
 131             0, NI_NUMERICHOST)) == 0)
 132                 printf("host=%s\n", hbuf);
 133         else
 134                 printf("%s\n", gai_strerror(ret));
 135
 136         ASSERT(ret == 0);
 137
 138         return 0;
 139 }