Docs/sgmlmanual/egfiles/wvresolverex.cc

   1  /*
   2  * A WvResolver example.
   3  *
   4  * Tries to look up two host names given on the command line.
   5  * The expected output:
   6  * resolver<Err>: 1 not in DNS.
   7  * resolver<Err>: 2 not in DNS.
   8  * resolver<Err>: 1 not in DNS.
   9  * resolver<Err>: 2 not in DNS.
  10  * resolver<Err>: 1 not in DNS.
  11  * resolver<Err>: 2 not in DNS.
  12  *
  13  */
  14
  15 #include "wvresolver.h"
  16 #include "wvlog.h"
  17
  18 void test(WvResolver &dns, int argc, char **argv)
  19 {
  20     WvLog log("resolver", WvLog::Info);
  21     const WvIPAddr *addr;
  22     int res1, res2;
  23
  24     res1 = res2 = -1;
  25
  26     while (res1 < 0 || res2 < 0)
  27     {
  28         if (res1 < 0)
  29         {
  30             res1 = dns.findaddr(100, argc > 1 ? argv[1] : "abyss.cnss.ca",
  31                                 &addr);
  32             if (res1 > 0)
  33                 log.print("Found address for 1: %s\n", (WvString)(*addr));
  34             else if (res1 < 0)
  35                 log.print("[1] ");
  36             else
  37                 log(WvLog::Error, "1 not in DNS.\n");
  38         }
  39
  40         if (res2 < 0)
  41         {
  42             res2 = dns.findaddr(100, argc > 2 ? argv[2] : "frank.foxnet.net",
  43                                &addr);
  44             if (res2 > 0)
  45                 log.print("Found address for 2: %s\n", (WvString)(*addr));
  46             else if (res2 < 0)
  47                 log.print("[2] ");
  48             else
  49                 log(WvLog::Error, "2 not in DNS.\n");
  50         }
  51     }
  52
  53 }
  54
  55 int main(int argc, char **argv)
  56 {
  57     {
  58         WvResolver dns;
  59         test(dns, argc, argv);
  60         test(dns, argc, argv);
  61     }
  62
  63     {
  64         WvResolver dns;
  65         test(dns, argc, argv);
  66     }
  67
  68     return 0;
  69 }