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/*
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, see <https://www.gnu.org/licenses/>.
*/
#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;
}
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