73ef4ff3
 Hu Chunming
提交三方库
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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>
/* Add a header to a SIP message. */
/* INPUT : char *hname | pointer to a header name. */
/* INPUT : char *hvalue | pointer to a header value. */
/* OUTPUT: osip_message_t *sip | structure to save results. */
/* returns -1 on error. */
int osip_message_set_header(osip_message_t *sip, const char *hname, const char *hvalue) {
osip_header_t *h;
int i;
if (sip == NULL || hname == NULL)
return OSIP_BADPARAMETER;
i = osip_header_init(&h);
if (i != 0)
return i;
h->hname = (char *) osip_malloc(strlen(hname) + 1);
if (h->hname == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hname, hname, strlen(hname));
if (hvalue != NULL) { /* some headers can be null ("subject:") */
h->hvalue = (char *) osip_malloc(strlen(hvalue) + 1);
if (h->hvalue == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hvalue, hvalue, strlen(hvalue));
} else
h->hvalue = NULL;
sip->message_property = 2;
osip_list_add(&sip->headers, h, -1);
return OSIP_SUCCESS; /* ok */
}
/* Add a or replace exising header to a SIP message. */
/* INPUT : char *hname | pointer to a header name. */
/* INPUT : char *hvalue | pointer to a header value. */
/* OUTPUT: osip_message_t *sip | structure to save results. */
/* returns -1 on error. */
int osip_message_replace_header(osip_message_t *sip, const char *hname, const char *hvalue) {
osip_header_t *h, *oldh;
int i, oldpos = -1;
if (sip == NULL || hname == NULL)
return OSIP_BADPARAMETER;
oldpos = osip_message_header_get_byname(sip, hname, 0, &oldh);
i = osip_header_init(&h);
if (i != 0)
return i;
h->hname = (char *) osip_malloc(strlen(hname) + 1);
if (h->hname == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hname, hname, strlen(hname));
if (hvalue != NULL) { /* some headers can be null ("subject:") */
h->hvalue = (char *) osip_malloc(strlen(hvalue) + 1);
if (h->hvalue == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hvalue, hvalue, strlen(hvalue));
} else
h->hvalue = NULL;
if (oldpos != -1) {
osip_list_remove(&sip->headers, oldpos);
osip_header_free(oldh);
}
sip->message_property = 2;
osip_list_add(&sip->headers, h, -1);
return OSIP_SUCCESS; /* ok */
}
#ifndef MINISIZE
/* Add a header to a SIP message at the top of the list. */
/* INPUT : char *hname | pointer to a header name. */
/* INPUT : char *hvalue | pointer to a header value. */
/* OUTPUT: osip_message_t *sip | structure to save results. */
/* returns -1 on error. */
int osip_message_set_topheader(osip_message_t *sip, const char *hname, const char *hvalue) {
osip_header_t *h;
int i;
if (sip == NULL || hname == NULL)
return OSIP_BADPARAMETER;
i = osip_header_init(&h);
if (i != 0)
return i;
h->hname = (char *) osip_malloc(strlen(hname) + 1);
if (h->hname == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hname, hname, strlen(hname));
if (hvalue != NULL) { /* some headers can be null ("subject:") */
h->hvalue = (char *) osip_malloc(strlen(hvalue) + 1);
if (h->hvalue == NULL) {
osip_header_free(h);
return OSIP_NOMEM;
}
osip_clrncpy(h->hvalue, hvalue, strlen(hvalue));
} else
h->hvalue = NULL;
sip->message_property = 2;
osip_list_add(&sip->headers, h, 0);
return OSIP_SUCCESS; /* ok */
}
/* Get a header in a SIP message. */
/* INPUT : int pos | position of number in message. */
/* OUTPUT: osip_message_t *sip | structure to scan for a header .*/
/* return null on error. */
int osip_message_get_header(const osip_message_t *sip, int pos, osip_header_t **dest) {
*dest = NULL;
if (osip_list_size(&sip->headers) <= pos)
return OSIP_UNDEFINED_ERROR; /* NULL */
*dest = (osip_header_t *) osip_list_get(&sip->headers, pos);
return pos;
}
#endif
/* Get a header in a SIP message. */
/* INPUT : int pos | position where we start the search */
/* OUTPUT: osip_message_t *sip | structure to look for header. */
/* return the current position of the header found */
/* and -1 on error. */
int osip_message_header_get_byname(const osip_message_t *sip, const char *hname, int pos, osip_header_t **dest) {
int i;
osip_header_t *tmp;
*dest = NULL;
i = pos;
if (osip_list_size(&sip->headers) <= pos)
return OSIP_UNDEFINED_ERROR; /* NULL */
while (osip_list_size(&sip->headers) > i) {
tmp = (osip_header_t *) osip_list_get(&sip->headers, i);
if (osip_strcasecmp(tmp->hname, hname) == 0) {
*dest = tmp;
return i;
}
i++;
}
return OSIP_UNDEFINED_ERROR; /* not found */
}
int osip_header_init(osip_header_t **header) {
*header = (osip_header_t *) osip_malloc(sizeof(osip_header_t));
if (*header == NULL)
return OSIP_NOMEM;
(*header)->hname = NULL;
(*header)->hvalue = NULL;
return OSIP_SUCCESS;
}
void osip_header_free(osip_header_t *header) {
if (header == NULL)
return;
osip_free(header->hname);
osip_free(header->hvalue);
header->hname = NULL;
header->hvalue = NULL;
osip_free(header);
}
/* returns the header as a string. */
/* INPUT : osip_header_t *header | header. */
/* returns null on error. */
int osip_header_to_str(const osip_header_t *header, char **dest) {
size_t len, hlen;
*dest = NULL;
if ((header == NULL) || (header->hname == NULL))
return OSIP_BADPARAMETER;
len = 0;
hlen = strlen(header->hname);
if (header->hvalue != NULL)
len = strlen(header->hvalue);
*dest = (char *) osip_malloc(hlen + len + 3);
if (*dest == NULL)
return OSIP_NOMEM;
if (header->hvalue != NULL)
snprintf(*dest, hlen + len + 3, "%s: %s", header->hname, header->hvalue);
else
snprintf(*dest, hlen + len + 3, "%s: ", header->hname);
if (*dest[0] >= 'a' && *dest[0] <= 'z')
*dest[0] = (*dest[0] - 32);
return OSIP_SUCCESS;
}
char *osip_header_get_name(const osip_header_t *header) {
if (header == NULL)
return NULL;
return header->hname;
}
void osip_header_set_name(osip_header_t *header, char *name) {
header->hname = name;
}
char *osip_header_get_value(const osip_header_t *header) {
if (header == NULL)
return NULL;
return header->hvalue;
}
void osip_header_set_value(osip_header_t *header, char *value) {
header->hvalue = value;
}
int osip_header_clone(const osip_header_t *header, osip_header_t **dest) {
int i;
osip_header_t *he;
*dest = NULL;
if (header == NULL)
return OSIP_BADPARAMETER;
if (header->hname == NULL)
return OSIP_BADPARAMETER;
i = osip_header_init(&he);
if (i != 0)
return i;
he->hname = osip_strdup(header->hname);
if (he->hname == NULL) {
osip_header_free(he);
return OSIP_NOMEM;
}
if (header->hvalue != NULL) {
he->hvalue = osip_strdup(header->hvalue);
if (he->hvalue == NULL) {
osip_header_free(he);
return OSIP_NOMEM;
}
}
*dest = he;
return OSIP_SUCCESS;
}
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