Initial ZMQ bindings.

vendor/ZMQ/tools/curve_keygen.cpp

@@ -0,0 +1,64 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq 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 Lesser General Public
+    License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdlib.h>
+#include <assert.h>
+#include <zmq.h>
+
+int main (void)
+{
+    puts ("This tool generates a CurveZMQ keypair, as two printable strings "
+          "you can");
+    puts ("use in configuration files or source code. The encoding uses Z85, "
+          "which");
+    puts (
+      "is a base-85 format that is described in 0MQ RFC 32, and which has an");
+    puts ("implementation in the z85_codec.h source used by this tool. The "
+          "keypair");
+    puts (
+      "always works with the secret key held by one party and the public key");
+    puts ("distributed (securely!) to peers wishing to connect to it.");
+
+    char public_key[41];
+    char secret_key[41];
+    if (zmq_curve_keypair (public_key, secret_key)) {
+        if (zmq_errno () == ENOTSUP)
+            puts ("To use curve_keygen, please install libsodium and then "
+                  "rebuild libzmq.");
+        exit (1);
+    }
+
+    puts ("\n== CURVE PUBLIC KEY ==");
+    puts (public_key);
+
+    puts ("\n== CURVE SECRET KEY ==");
+    puts (secret_key);
+
+    exit (0);
+}