support inline command infrastructure in gnutls-cli

Signed-off-by: Raj Raman <rajramanca@gmail.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/src/inline_cmds.h b/src/inline_cmds.h
new file mode 100755
index 0000000000..49bc5dd120
--- /dev/null
+++ b/src/inline_cmds.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011-2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuTLS.
+ *
+ * GnuTLS 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.
+ *
+ * GnuTLS 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 <http://www.gnu.org/licenses/>.
+ */
+
+/* 
+ * The inline commands is a facility that can be used optionally
+ * when --inline-commands is set during invocation of gnutls-cli
+ * to send inline commands at any time while a secure connection
+ * between the client and server is active. This is especially 
+ * useful when the HTTPS connection is (HTTP) persistent -  
+ * inline commands can be issued between HTTP requests, ex: GET.
+ * session renegotiation and session resumption can be issued 
+ * inline between GET requests.
+ *
+ * Following inline commands are currently supported:
+ * ^resume^      - perform session resumption (similar to option -r)
+ * ^renegotiate^ - perform session renegotiation (similar to option -e)
+ *
+ * inline-commands-prefix is an additional option that can be set
+ * from gnutls-cli to change the default prefix (^) of inline commands.
+ * This option is only relevant if inline-commands option is enabled. 
+ * This option expects a single US-ASCII character (octets 0 - 127).
+ * For ex: if --inline-commands-prefix=@, the inline commands will be 
+ * @resume@, @renegotiate@, etc...
+ */
+typedef enum INLINE_COMMAND
+{ INLINE_COMMAND_NONE,  
+  INLINE_COMMAND_RESUME, 
+  INLINE_COMMAND_RENEGOTIATE 
+} inline_command_t;
+#define NUM_INLINE_COMMANDS 2
+
+#define MAX_INLINE_COMMAND_BYTES 20
+
+typedef struct inline_cmds
+{
+  char             *current_ptr;     /* points to the start of the current buffer being processed */
+  char             *new_buffer_ptr;  /* points to start or offset within the caller's buffer,
+                                      * and refers to bytes yet to be processed. */
+  inline_command_t cmd_found;
+  int              lf_found;
+  int              bytes_to_flush;
+  ssize_t          bytes_copied;
+  char             inline_cmd_buffer[MAX_INLINE_COMMAND_BYTES];
+} inline_cmds_st;
+
+
+struct inline_command_definitions
+{
+  int  command;
+  char string[MAX_INLINE_COMMAND_BYTES];
+};
+
+/* All inline commands will contain a trailing LF */
+struct inline_command_definitions inline_commands_def[] = 
+{ 
+  {INLINE_COMMAND_RESUME,      "^resume^\n"},
+  {INLINE_COMMAND_RENEGOTIATE, "^renegotiate^\n"},
+};