com32/modules/host.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <console.h>
   5 #include <netinet/in.h>
   6 #include <com32.h>
   7 #include <syslinux/pxe.h>
   8
   9 static inline uint32_t dns_resolve(const char *hostname)
  10 {
  11     return pxe_dns(hostname);
  12 }
  13
  14 static inline void usage(const char *s)
  15 {
  16     fprintf(stderr, "Usage: %s hostname [, hostname_1, hostname_2, ...]\n", s);
  17 }
  18
  19 int main(int argc, char *argv[])
  20 {
  21     int i;
  22     uint32_t ip;
  23
  24     openconsole(&dev_null_r, &dev_stdcon_w);
  25
  26     if (argc < 2) {
  27         usage(argv[0]);
  28         return 1;
  29     }
  30
  31     for (i = 1; i < argc; i++) {
  32         ip = dns_resolve(argv[i]);
  33         if (!ip) {
  34             printf("%s not found.\n", argv[i]);
  35         } else {
  36             printf("%-39s %08X %u.%u.%u.%u\n", argv[i], ntohl(ip), ip & 0xFF,
  37                    (ip >> 8) & 0xFF, (ip >> 16) & 0xFF, (ip >> 24) & 0xFF);
  38         }
  39     }
  40
  41     return 0;
  42 }