1 files changed, 79 insertions, 0 deletions
diff --git a/dirmngr/ks-engine-kdns.c b/dirmngr/ks-engine-kdns.c
new file mode 100644
index 0000000..71463fe
--- /dev/null
+++ b/dirmngr/ks-engine-kdns.c
@@ -0,0 +1,79 @@
+/* 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;
+}