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/* t-dns-cert.c - Module test for dns-stuff.c
* Copyright (C) 2011 Free Software Foundation, Inc.
* Copyright (C) 2011, 2015 Werner Koch
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#ifndef HAVE_W32_SYSTEM
# include <netdb.h>
#endif
#include "util.h"
#include "dns-stuff.h"
#define PGM "t-dns-stuff"
static int verbose;
static int debug;
int
main (int argc, char **argv)
{
int last_argc = -1;
gpg_error_t err;
int opt_cert = 0;
char const *name;
gpgrt_init ();
if (argc)
{ argc--; argv++; }
while (argc && last_argc != argc )
{
last_argc = argc;
if (!strcmp (*argv, "--"))
{
argc--; argv++;
break;
}
else if (!strcmp (*argv, "--help"))
{
fputs ("usage: " PGM " [HOST]\n"
"Options:\n"
" --verbose print timings etc.\n"
" --debug flyswatter\n"
" --cert lookup a CERT RR\n"
, stdout);
exit (0);
}
else if (!strcmp (*argv, "--verbose"))
{
verbose++;
argc--; argv++;
}
else if (!strcmp (*argv, "--debug"))
{
verbose += 2;
debug++;
argc--; argv++;
}
else if (!strcmp (*argv, "--cert"))
{
opt_cert = 1;
argc--; argv++;
}
else if (!strncmp (*argv, "--", 2))
{
fprintf (stderr, PGM ": unknown option '%s'\n", *argv);
exit (1);
}
}
if (!argc)
{
opt_cert = 1;
name = "simon.josefsson.org";
}
else if (argc == 1)
name = *argv;
else
{
fprintf (stderr, PGM ": too many host names given\n");
exit (1);
}
if (opt_cert)
{
unsigned char *fpr;
size_t fpr_len;
char *url;
void *key;
size_t keylen;
printf ("CERT lookup on '%s'\n", name);
err = get_dns_cert (name, DNS_CERTTYPE_ANY, &key, &keylen,
&fpr, &fpr_len, &url);
if (err)
printf ("get_dns_cert failed: %s <%s>\n",
gpg_strerror (err), gpg_strsource (err));
else if (key)
{
printf ("Key found (%u bytes)\n", (unsigned int)keylen);
}
else
{
if (fpr)
{
int i;
printf ("Fingerprint found (%d bytes): ", (int)fpr_len);
for (i = 0; i < fpr_len; i++)
printf ("%02X", fpr[i]);
putchar ('\n');
}
else
printf ("No fingerprint found\n");
if (url)
printf ("URL found: %s\n", url);
else
printf ("No URL found\n");
}
xfree (key);
xfree (fpr);
xfree (url);
}
else /* Standard lookup. */
{
char *cname;
dns_addrinfo_t aibuf, ai;
int ret;
char hostbuf[1025];
printf ("Lookup on '%s'\n", name);
err = resolve_dns_name (name, 0, 0, SOCK_STREAM, &aibuf, &cname);
if (err)
{
fprintf (stderr, PGM": resolving '%s' failed: %s\n",
name, gpg_strerror (err));
exit (1);
}
if (cname)
printf ("cname: %s\n", cname);
for (ai = aibuf; ai; ai = ai->next)
{
printf ("%s %3d %3d ",
ai->family == AF_INET6? "inet6" :
ai->family == AF_INET? "inet4" : "? ",
ai->socktype, ai->protocol);
ret = getnameinfo (ai->addr, ai->addrlen,
hostbuf, sizeof hostbuf,
NULL, 0,
NI_NUMERICHOST);
if (ret)
printf ("[getnameinfo failed: %s]\n", gai_strerror (ret));
else
printf ("%s\n", hostbuf);
}
xfree (cname);
free_dns_addrinfo (aibuf);
}
return 0;
}
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