sqmail-4.3.07/src/dnscname.c


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#include <unistd.h>
#include "buffer.h"
#include "stralloc.h"
#include "dnsresolv.h"
#include "exit.h"
#include "dns.h"
#include "logmsg.h"

#define WHO "dnscname"

stralloc sa = {0};
stralloc out = {0};

int main(int argc,char **argv)
{
   int r; 

   if (!argv[1]) 
    logmsg(WHO,100,USAGE,"dnscname fqdn");

  if (!stralloc_copys(&sa,argv[1]))
    logmsg(WHO,111,FATAL,"out of memory");

  DNS_INIT
  if ((r = dns_cname(&out,&sa)) < 0) _exit(1);
  if (r > 0) {
    buffer_putflush(buffer_1,out.s,out.len);
    buffer_putsflush(buffer_1,"\n");
  }

  _exit(0);
}