1 files changed, 70 insertions, 0 deletions
diff --git a/src/sdp/sdp_parse_ctrl.cpp b/src/sdp/sdp_parse_ctrl.cpp
new file mode 100644
index 0000000..44d0886
--- /dev/null
+++ b/src/sdp/sdp_parse_ctrl.cpp
@@ -0,0 +1,70 @@
+/*
+    Copyright (C) 2005-2009  Michel de Boer <michel@twinklephone.com>
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "sdp_parse_ctrl.h"
+#include "audits/memman.h"
+
+// Interface to Bison
+extern int yysdpparse(void);
+
+// Interface to Flex
+struct yy_buffer_state;
+extern struct yy_buffer_state *yysdp_scan_string(const char *);
+extern void yysdp_delete_buffer(struct yy_buffer_state *);
+
+t_mutex t_sdp_parser::mtx_parser;
+t_sdp_parser::t_context t_sdp_parser::context = t_sdp_parser::X_INITIAL;
+t_sdp *t_sdp_parser::sdp = NULL;
+
+t_sdp *t_sdp_parser::parse(const string &s) {
+	int ret;
+	struct yy_buffer_state *b;
+	
+	t_mutex_guard guard(mtx_parser);
+	
+	sdp = new t_sdp();
+	MEMMAN_NEW(sdp);
+	
+	// The SDP body should end with a CRLF. Some implementations
+	// do not send this last CRLF. Allow this deviation by adding
+	// the last CRLF if it is missing.
+	char last_char = s.at(s.size()-1);
+	if (last_char == '\n' || last_char == '\r') {
+		// The SDP parser allows \r, \r\n and \n as CRLF
+		b = yysdp_scan_string(s.c_str());
+	} else {
+		// Last CRLF is missing.
+		b = yysdp_scan_string((s + "\r\n").c_str());
+	}
+	
+	ret = yysdpparse();
+	yysdp_delete_buffer(b);
+
+	if (ret != 0) {
+		MEMMAN_DELETE(sdp);
+		delete sdp;
+		sdp = NULL;
+		throw ret;
+	}
+
+	return sdp;
+}
+
+t_sdp_syntax_error::t_sdp_syntax_error(const string &e) {
+	error = e;
+}