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Sourcecode: djbdns version File versions  Download package

dnsname.c

#include "buffer.h"
#include "exit.h"
#include "strerr.h"
#include "ip4.h"
#include "dns.h"

#define FATAL "dnsname: fatal: "

static char seed[128];

char ip[4];
static stralloc out;

int main(int argc,char **argv)
{
  dns_random_init(seed);

  if (*argv) ++argv;

  while (*argv) {
    if (!ip4_scan(*argv,ip))
      strerr_die3x(111,FATAL,"unable to parse IP address ",*argv);
    if (dns_name4(&out,ip) == -1)
      strerr_die4sys(111,FATAL,"unable to find host name for ",*argv,": ");

    buffer_put(buffer_1,out.s,out.len);
    buffer_puts(buffer_1,"\n");

    ++argv;
  }

  buffer_flush(buffer_1);
  _exit(0);
}

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