osip_content_length.c
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/*
The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
Copyright (C) 2001-2020 Aymeric MOIZARD amoizard@antisip.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <osipparser2/internal.h>
#include <osipparser2/osip_port.h>
#include <osipparser2/osip_message.h>
#include <osipparser2/osip_parser.h>
int osip_content_length_init(osip_content_length_t **cl) {
*cl = (osip_content_length_t *) osip_malloc(sizeof(osip_content_length_t));
if (*cl == NULL)
return OSIP_NOMEM;
(*cl)->value = NULL;
return OSIP_SUCCESS;
}
/* adds the content_length header to message. */
/* INPUT : const char *hvalue | value of header. */
/* OUTPUT: osip_message_t *sip | structure to save results. */
/* returns -1 on error. */
int osip_message_set_content_length(osip_message_t *sip, const char *hvalue) {
int i;
if (hvalue == NULL || hvalue[0] == '\0')
return OSIP_SUCCESS;
if (sip->content_length != NULL)
return OSIP_SYNTAXERROR;
i = osip_content_length_init(&(sip->content_length));
if (i != 0)
return i;
sip->message_property = 2;
i = osip_content_length_parse(sip->content_length, hvalue);
if (i != 0) {
osip_content_length_free(sip->content_length);
sip->content_length = NULL;
return i;
}
return OSIP_SUCCESS;
}
int osip_content_length_parse(osip_content_length_t *content_length, const char *hvalue) {
size_t len;
if (hvalue == NULL)
return OSIP_BADPARAMETER;
len = strlen(hvalue);
if (len + 1 < 2)
return OSIP_SYNTAXERROR;
content_length->value = (char *) osip_malloc(len + 1);
if (content_length->value == NULL)
return OSIP_NOMEM;
osip_strncpy(content_length->value, hvalue, len);
return OSIP_SUCCESS;
}
#ifndef MINISIZE
/* returns the content_length header. */
/* INPUT : osip_message_t *sip | sip message. */
/* returns null on error. */
osip_content_length_t *osip_message_get_content_length(const osip_message_t *sip) {
return sip->content_length;
}
#endif
/* returns the content_length header as a string. */
/* INPUT : osip_content_length_t *content_length | content_length header. */
/* returns null on error. */
int osip_content_length_to_str(const osip_content_length_t *cl, char **dest) {
if (cl == NULL)
return OSIP_BADPARAMETER;
*dest = osip_strdup(cl->value);
if (*dest == NULL)
return OSIP_NOMEM;
return OSIP_SUCCESS;
}
/* deallocates a osip_content_length_t strcture. */
/* INPUT : osip_content_length_t *content_length | content_length header. */
void osip_content_length_free(osip_content_length_t *content_length) {
if (content_length == NULL)
return;
osip_free(content_length->value);
osip_free(content_length);
}
int osip_content_length_clone(const osip_content_length_t *ctl, osip_content_length_t **dest) {
int i;
osip_content_length_t *cl;
*dest = NULL;
if (ctl == NULL)
return OSIP_BADPARAMETER;
/*
empty headers are allowed:
if (ctl->value==NULL) return -1;
*/
i = osip_content_length_init(&cl);
if (i != 0) /* allocation failed */
return i;
if (ctl->value != NULL) {
cl->value = osip_strdup(ctl->value);
if (cl->value == NULL) {
osip_content_length_free(cl);
return OSIP_NOMEM;
}
}
*dest = cl;
return OSIP_SUCCESS;
}