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kamailio/parser/parse_sipifmatch.c

110 lines
2.4 KiB

/*
* Copyright (C) 2004 Jamey Hicks, jamey dot hicks at hp dot com
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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
*
* Kamailio 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*! \file
* \brief Parser :: Parse if-match header
*
* \ingroup parser
*/
#include <string.h>
#include "parse_sipifmatch.h"
#include "../dprint.h"
#include "parse_def.h"
#include "../mem/mem.h"
#include "../trim.h"
static inline char* skip_token(char* _b, int _l)
{
int i = 0;
for(i = 0; i < _l; i++) {
switch(_b[i]) {
case ' ':
case '\r':
case '\n':
case '\t':
case ';':
return _b + i;
}
}
return _b + _l;
}
int etag_parser(char *_s, int _l, str *_e)
{
char* end;
_e->s = _s;
_e->len = _l;
trim_leading(_e);
if (_e->len == 0) {
LOG(L_ERR, "etag_parser(): Empty body\n");
return -1;
}
end = skip_token(_e->s, _e->len);
_e->len = end - _e->s;
return 0;
}
int parse_sipifmatch(struct hdr_field* _h)
{
str *e;
DBG("parse_sipifmatch() called\n");
if (_h->parsed != 0) {
return 0;
}
e = (str*)pkg_malloc(sizeof(str));
if (e == 0) {
LOG(L_ERR, "parse_ifsipmatch(): No memory left\n");
return -1;
}
memset(e, 0, sizeof(str));
if (etag_parser(_h->body.s, _h->body.len, e) < 0) {
LOG(L_ERR, "parse_sipifmatch(): Error in tag_parser\n");
pkg_free(e);
return -2;
}
_h->parsed = (void*)e;
return 0;
}
void free_sipifmatch(str** _e)
{
if (*_e)
pkg_free(*_e);
*_e = 0;
}