initial checkin

Check in contents of upstream 1.4.2 tarball, exclude generated files.

1 files changed, 136 insertions, 0 deletions

diff --git a/src/parser/parse_ctrl.cpp b/src/parser/parse_ctrl.cpp
new file mode 100644
index 0000000..cfaad81
--- /dev/null
+++ b/src/parser/parse_ctrl.cpp
@@ -0,0 +1,136 @@
+/*
+    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 "parse_ctrl.h"
+#include "protocol.h"
+#include "util.h"
+#include "audits/memman.h"
+
+// Interface to Bison
+extern int yyparse(void);
+
+// Interface to Flex
+struct yy_buffer_state;
+extern struct yy_buffer_state *yy_scan_string(const char *);
+extern void yy_delete_buffer(struct yy_buffer_state *);
+
+t_mutex t_parser::mtx_parser;
+bool t_parser::check_max_forwards = true;
+bool t_parser::compact_headers = false;
+bool t_parser::multi_values_as_list = true;
+int t_parser::comment_level = 0;
+list<string> t_parser::parse_errors;
+
+string t_parser::unfold(const string &h) {
+	string::size_type i;
+	string s = h;
+
+	while ((i = s.find("\r\n ")) != string::npos) {
+		s.replace(i, 3, " ");
+	}
+
+	while ((i = s.find("\r\n\t")) != string::npos) {
+		s.replace(i, 3, " ");
+	}
+
+	// This is only for easy testing of hand edited messages
+	// in Linux where the end of line character is \n only.
+	while ((i = s.find("\n ")) != string::npos) {
+		s.replace(i, 2, " ");
+	}
+
+	while ((i = s.find("\n\t")) != string::npos) {
+		s.replace(i, 2, " ");
+	}
+
+	return s;
+}
+
+t_parser::t_context t_parser::context = t_parser::X_INITIAL;
+t_sip_message *t_parser::msg = NULL;
+
+t_sip_message *t_parser::parse(const string &s, list<string> &parse_errors_) {
+	t_mutex_guard guard(mtx_parser);
+	
+	int ret;
+	struct yy_buffer_state *b;
+	msg = NULL;
+
+	parse_errors.clear();
+
+	string x = unfold(s);
+
+	b = yy_scan_string(x.c_str());
+	ret = yyparse();
+	yy_delete_buffer(b);
+
+	if (ret != 0) {
+		if (msg) {
+			MEMMAN_DELETE(msg);
+			delete msg;
+			msg = NULL;
+		}
+		throw ret;
+	}
+
+	parse_errors_ = parse_errors;
+	return msg;
+}
+
+t_sip_message *t_parser::parse_headers(const string &s, list<string> &parse_errors_) {
+	string msg("INVITE sip:fake@fake.invalid SIP/2.0");
+	msg += CRLF;
+	
+	list<t_parameter> hdr_list = str2param_list(s);
+	for (list<t_parameter>::iterator i = hdr_list.begin();
+	     i != hdr_list.end(); i++)
+	{
+		msg += unescape_hex(i->name);
+		msg += ": ";
+		msg += unescape_hex(i->value);
+		msg += CRLF;
+	}
+	
+	msg += CRLF;
+	
+	return parse(msg, parse_errors_);
+}
+
+void t_parser::enter_ctx_comment(void) {
+	comment_level = 0;
+	context = t_parser::X_COMMENT;
+}
+
+void t_parser::inc_comment_level(void) {
+	comment_level++;
+}
+
+bool t_parser::dec_comment_level(void) {
+	if (comment_level == 0) return false;
+	comment_level--;
+	return true;
+}
+
+void t_parser::add_header_error(const string &header_name) {
+	string s = "Parse error in header: " + header_name;
+	parse_errors.push_back(s);
+}
+
+t_syntax_error::t_syntax_error(const string &e) {
+	error = e;
+}