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/* ks-engine-kdns.c - KDNS OpenPGP key access
* Copyright (C) 2011 Free Software Foundation, Inc.
*
* 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 <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "dirmngr.h"
#include "misc.h"
#include "../common/userids.h"
#include "ks-engine.h"
/* Print a help output for the schemata supported by this module. */
gpg_error_t
ks_kdns_help (ctrl_t ctrl, parsed_uri_t uri)
{
const char data[] =
"This keyserver engine accepts URLs of the form:\n"
" kdns://[NAMESERVER]/[ROOT][?at=STRING]\n"
"with\n"
" NAMESERVER used for queries (default: system standard)\n"
" ROOT a DNS name appended to the query (default: none)\n"
" STRING a string to replace the '@' (default: \".\")\n"
"If a long answer is expected add the parameter \"usevc=1\".\n"
"Supported methods: fetch\n"
"Example:\n"
"A query for \"hacker@gnupg.org\" with\n"
" kdns://10.0.0.1/example.net?at=_key_&usevc=1\n"
"setup as --auto-key-lookup in gpg does a CERT record query\n"
"with type PGP on the nameserver 10.0.0.1 for\n"
" hacker._key_.gnupg.org.example.net";
gpg_error_t err;
if (!uri)
err = ks_print_help (ctrl, " kdns");
else if (!strcmp (uri->scheme, "kdns"))
err = ks_print_help (ctrl, data);
else
err = 0;
return err;
}
/* Get the key from URI which is expected to specify a kdns scheme.
On success R_FP has an open stream to read the data. */
gpg_error_t
ks_kdns_fetch (ctrl_t ctrl, parsed_uri_t uri, estream_t *r_fp)
{
gpg_error_t err;
(void)ctrl;
*r_fp = NULL;
if (strcmp (uri->scheme, "kdns"))
return gpg_error (GPG_ERR_INV_ARG);
err = gpg_error (GPG_ERR_NOT_IMPLEMENTED);
return err;
}
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