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/*
* $Id: parse_expires.c,v 1.2 2005/06/16 11:37:54 miconda Exp $
*
* Expires header field body parser
*
* Copyright (C) 2001-2003 FhG Fokus
*
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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
*
* History:
* --------
* 2003-04-26 ZSW (jiri)
*/
#include "parse_expires.h"
#include <stdio.h> /* printf */
#include "../mem/mem.h" /* pkg_malloc, pkg_free */
#include "../dprint.h"
#include "../trim.h" /* trim_leading */
#include <string.h> /* memset */
#include "../ut.h"
static inline int expires_parser(char* _s, int _l, exp_body_t* _e)
{
int i;
str tmp;
tmp.s = _s;
tmp.len = _l;
trim_leading(&tmp);
if (tmp.len == 0) {
LOG(L_ERR, "expires_parser(): Empty body\n");
_e->valid = 0;
return -1;
}
_e->text.s = tmp.s;
for(i = 0; i < tmp.len; i++) {
if ((tmp.s[i] >= '0') && (tmp.s[i] <= '9')) {
_e->val *= 10;
_e->val += tmp.s[i] - '0';
} else {
switch(tmp.s[i]) {
case ' ':
case '\t':
case '\r':
case '\n':
_e->text.len = i;
_e->valid = 1;
return 0;
default:
/* Exit normally here, we want to be backwards compatible with
* RFC2543 entities that can put absolute time here
*/
/*
LOG(L_ERR, "expires_parser(): Invalid character\n");
return -2;
*/
_e->valid = 0;
return 0;
}
}
}
_e->text.len = _l;
_e->valid = 1;
return 0;
}
/*
* Parse expires header field body
*/
int parse_expires(struct hdr_field* _h)
{
exp_body_t* e;
if (_h->parsed) {
return 0; /* Already parsed */
}
e = (exp_body_t*)pkg_malloc(sizeof(exp_body_t));
if (e == 0) {
LOG(L_ERR, "parse_expires(): No memory left\n");
return -1;
}
memset(e, 0, sizeof(exp_body_t));
if (expires_parser(_h->body.s, _h->body.len, e) < 0) {
LOG(L_ERR, "parse_expires(): Error while parsing\n");
pkg_free(e);
return -2;
}
_h->parsed = (void*)e;
return 0;
}
/*
* Free all memory associated with exp_body_t
*/
void free_expires(exp_body_t** _e)
{
pkg_free(*_e);
*_e = 0;
}
/*
* Print exp_body_t content, for debugging only
*/
void print_expires(exp_body_t* _e)
{
printf("===Expires===\n");
printf("text: \'%.*s\'\n", _e->text.len, ZSW(_e->text.s));
printf("val : %d\n", _e->val);
printf("===/Expires===\n");
}
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