/*
This file is part of GNUnet.
- (C) 2010 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010 GNUnet e.V.
- GNUnet 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, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet 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.
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
#include "gnunet_util_lib.h"
#include "gnunet_resolver_service.h"
-#define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
+#define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
+
+/**
+ * Flag for reverse lookup.
+ */
+static int reverse;
+
+
+/**
+ * Prints each hostname obtained from DNS.
+ *
+ * @param cls closure (unused)
+ * @param hostname one of the names for the host, NULL
+ * on the last call to the callback
+ */
+static void
+print_hostname (void *cls,
+ const char *hostname)
+{
+ (void) cls;
+ if (NULL == hostname)
+ return;
+ FPRINTF (stdout,
+ "%s\n",
+ hostname);
+}
+
/**
* Callback function to display address.
+ *
+ * @param cls closure (unused)
+ * @param addr one of the addresses of the host, NULL for the last address
+ * @param addrlen length of the address
*/
static void
-printer (void *cls,
- const struct sockaddr * addr,
- socklen_t addrlen)
+print_sockaddr (void *cls,
+ const struct sockaddr *addr,
+ socklen_t addrlen)
{
- if (addr == NULL)
+ (void) cls;
+ if (NULL == addr)
return;
FPRINTF (stdout,
- "%s\n",
- GNUNET_a2s (addr, addrlen));
+ "%s\n",
+ GNUNET_a2s (addr,
+ addrlen));
}
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
- if (args[0] == NULL)
+ const struct sockaddr *sa;
+ socklen_t salen;
+ struct sockaddr_in v4;
+ struct sockaddr_in6 v6;
+
+ (void) cls;
+ (void) cfgfile;
+ (void) cfg;
+ if (NULL == args[0])
+ return;
+ if (! reverse)
+ {
+ GNUNET_RESOLVER_ip_get (args[0],
+ AF_UNSPEC,
+ GET_TIMEOUT,
+ &print_sockaddr,
+ NULL);
return;
- GNUNET_RESOLVER_ip_get (args[0],
- AF_UNSPEC,
- GET_TIMEOUT,
- &printer,
- NULL);
+ }
+
+ sa = NULL;
+ memset (&v4, 0, sizeof (v4));
+ v4.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ v4.sin_len = sizeof (v4);
+#endif
+ if (1 == inet_pton (AF_INET,
+ args[0],
+ &v4.sin_addr))
+ {
+ sa = (struct sockaddr *) &v4;
+ salen = sizeof (v4);
+ }
+ memset (&v6, 0, sizeof (v6));
+ v6.sin6_family = AF_INET6;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ v6.sin6_len = sizeof (v6);
+#endif
+ if (1 == inet_pton (AF_INET6,
+ args[0],
+ &v6.sin6_addr))
+ {
+ sa = (struct sockaddr *) &v6;
+ salen = sizeof (v6);
+ }
+ if (NULL == sa)
+ {
+ fprintf (stderr,
+ "`%s' is not a valid IP: %s\n",
+ args[0],
+ strerror (errno));
+ return;
+ }
+ GNUNET_RESOLVER_hostname_get (sa, salen,
+ GNUNET_YES,
+ GET_TIMEOUT,
+ &print_hostname,
+ NULL);
}
+
/**
- * The main function to obtain statistics in GNUnet.
+ * The main function to access GNUnet's DNS resolver.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
int
main (int argc, char *const *argv)
{
- static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+ struct GNUNET_GETOPT_CommandLineOption options[] = {
+ GNUNET_GETOPT_option_flag ('r',
+ "reverse",
+ gettext_noop ("perform a reverse lookup"),
+ &reverse),
GNUNET_GETOPT_OPTION_END
};
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-resolver [hostname]",
- gettext_noop
- ("Test GNUnet DNS resolver code."),
- options, &run, NULL);
- fprintf (stderr, "again...\n");
-
- return (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc,
- argv,
- "gnunet-resolver [hostname]",
- gettext_noop
- ("Test GNUnet DNS resolver code."),
- options, &run, NULL)) ? 0 : 1;
+ int ret;
+
+ if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ return 2;
+
+ ret = (GNUNET_OK ==
+ GNUNET_PROGRAM_run (argc, argv, "gnunet-resolver [hostname]",
+ gettext_noop ("Use build-in GNUnet stub resolver"),
+ options, &run, NULL)) ? 0 : 1;
+ GNUNET_free ((void*) argv);
+ return ret;
}
/* end of gnunet-resolver.c */
projects / oweals / gnunet.git / blobdiff