Add missing license comments.

src/protocols/ssh/client.c

@@ -68,6 +68,9 @@ const char* GUAC_CLIENT_ARGS[] = {
     "enable-sftp",
     "private-key",
     "passphrase",
+#ifdef ENABLE_SSH_AGENT
+    "enable-agent",
+#endif
     NULL
 };
 
@@ -118,6 +121,13 @@ enum __SSH_ARGS_IDX {
      */
     IDX_PASSPHRASE,
 
+#ifdef ENABLE_SSH_AGENT
+    /**
+     * Whether SSH agent forwarding support should be enabled.
+     */
+    IDX_ENABLE_AGENT,
+#endif
+
     SSH_ARGS_COUNT
 };
 
@@ -168,6 +178,10 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
     client_data->sftp_ssh_session = NULL;
     strcpy(client_data->sftp_upload_path, ".");
 
+#ifdef ENABLE_SSH_AGENT
+    client_data->enable_agent = strcmp(argv[IDX_ENABLE_AGENT], "true") == 0;
+#endif
+
     /* Read port */
     if (argv[IDX_PORT][0] != 0)
         strcpy(client_data->port, argv[IDX_PORT]);

src/protocols/ssh/client.h

@@ -103,6 +103,13 @@ typedef struct ssh_guac_client_data {
      */
     bool enable_sftp;
 
+#ifdef ENABLE_SSH_AGENT
+    /**
+     * Whether the SSH agent is enabled.
+     */
+    bool enable_agent;
+#endif
+
     /**
      * The SSH client thread.
      */

src/protocols/ssh/ssh_agent.c

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #include <stdio.h>
 #include <stdint.h>
 #include <unistd.h>
@@ -66,13 +102,13 @@ void ssh_auth_agent_list_identities(ssh_auth_agent* auth_agent) {
 
     buffer_write_uint32(&pos, 1+4
                               + key->public_key_length+4
-                              + sizeof("comment")+3);
+                              + sizeof(SSH_AGENT_COMMENT)+3);
 
     buffer_write_byte(&pos, SSH2_AGENT_IDENTITIES_ANSWER);
     buffer_write_uint32(&pos, 1);
 
     buffer_write_string(&pos, key->public_key, key->public_key_length);
-    buffer_write_string(&pos, "comment", sizeof("comment")-1);
+    buffer_write_string(&pos, SSH_AGENT_COMMENT, sizeof(SSH_AGENT_COMMENT)-1);
 
     libssh2_channel_write(channel, buffer, pos-buffer);
     libssh2_channel_flush(channel);

src/protocols/ssh/ssh_agent.h

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #ifndef _GUAC_SSH_AGENT_H
 #define _GUAC_SSH_AGENT_H
 
@@ -24,6 +60,11 @@
  */
 #define SSH2_AGENT_SIGN_RESPONSE 0x0E
 
+/**
+ * The comment to associate with public keys when listed.
+ */
+#define SSH_AGENT_COMMENT "Guacamole SSH Agent"
+
 /**
  * The packet sent by the SSH agent when an operation is not supported.
  */

src/protocols/ssh/ssh_buffer.c

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #include <stdint.h>
 #include <string.h>
 

src/protocols/ssh/ssh_buffer.h

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #ifndef _GUAC_SSH_BUFFER_H
 #define _GUAC_SSH_BUFFER_H
 

src/protocols/ssh/ssh_client.c

@@ -372,12 +372,17 @@ void* ssh_client_thread(void* data) {
     }
 
 #ifdef ENABLE_SSH_AGENT
-    libssh2_session_callback_set(client_data->session,
-            LIBSSH2_CALLBACK_AUTH_AGENT, (void*) ssh_auth_agent_callback);
+    /* Start SSH agent forwarding, if enabled */
+    if (client_data->enable_agent) {
+        libssh2_session_callback_set(client_data->session,
+                LIBSSH2_CALLBACK_AUTH_AGENT, (void*) ssh_auth_agent_callback);
 
-    /* Request agent forwarding */
-    if (libssh2_channel_request_auth_agent(client_data->term_channel))
-        guac_client_log_error(client, "Agent forwarding request failed");
+        /* Request agent forwarding */
+        if (libssh2_channel_request_auth_agent(client_data->term_channel))
+            guac_client_log_error(client, "Agent forwarding request failed");
+        else
+            guac_client_log_info(client, "Agent forwarding enabled.");
+    }
 #endif
 
     /* Start SFTP session as well, if enabled */

src/protocols/ssh/ssh_key.c

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #include <string.h>
 
 #include <openssl/err.h>

src/protocols/ssh/ssh_key.h

@@ -1,4 +1,40 @@
 
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is libguac-client-ssh.
+ *
+ * The Initial Developer of the Original Code is
+ * Michael Jumper.
+ * Portions created by the Initial Developer are Copyright (C) 2011
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #ifndef _GUAC_SSH_KEY_H
 #define _GUAC_SSH_KEY_H