/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <sip.h>
#include "sip_msg.h"
#include "sip_miscdefs.h"
#include "sip_parse_generic.h"
sip_methods_t sip_methods[MAX_SIP_METHODS] = {
{"UNKNOWN", 7},
{"INVITE", 6},
{"ACK", 3},
{"OPTIONS", 7},
{"BYE", 3},
{"CANCEL", 6},
{"REGISTER", 8},
{"REFER", 5},
{"INFO", 4},
{"SUBSCRIBE", 9},
{"NOTIFY", 6},
{"PRACK", 5}
};
/*
* Built-In Header function table
*/
sip_header_function_t sip_header_function_table[] = {
{"Unknown", NULL, sip_parse_unknown_header, NULL, NULL, NULL},
{"CONTACT", "m", sip_parse_cftr_header, NULL, NULL,
sip_free_cftr_header},
{"FROM", "F", sip_parse_cftr_header, NULL, NULL, sip_free_cftr_header},
{"TO", "T", sip_parse_cftr_header, NULL, NULL, sip_free_cftr_header},
{"CONTENT-LENGTH", "l", sip_parse_clen_header, NULL, NULL,
sip_free_phdr},
{"CONTENT-TYPE", "c", sip_parse_ctype_header, NULL, NULL,
sip_free_phdr},
{"CALL-ID", "i", sip_parse_cid_header, NULL, NULL, sip_free_phdr},
{"CSEQ", NULL, sip_parse_cseq_header, NULL, NULL, sip_free_phdr},
{"VIA", "v", sip_parse_via_header, NULL, NULL, sip_free_phdr},
{"Max-Forwards", NULL, sip_parse_maxf_header, NULL, NULL,
sip_free_phdr},
{"RECORD-ROUTE", NULL, sip_parse_cftr_header, NULL, NULL,
sip_free_cftr_header},
{"ROUTE", NULL, sip_parse_cftr_header, NULL, NULL,
sip_free_cftr_header},
{"ACCEPT", NULL, sip_parse_acpt_header, NULL, NULL, sip_free_phdr},
{"ACCEPT-ENCODING", NULL, sip_parse_acpt_encode_header, NULL, NULL,
sip_free_phdr},
{"ACCEPT-LANGUAGE", NULL, sip_parse_acpt_lang_header, NULL, NULL,
sip_free_phdr},
{"ALERT-INFO", NULL, sip_parse_alert_header, NULL, NULL, sip_free_phdr},
{"ALLOW", NULL, sip_parse_allow_header, NULL, NULL, sip_free_phdr},
{"CALL-INFO", NULL, sip_parse_callinfo_header, NULL, NULL,
sip_free_phdr},
{"CONTENT-DISPOSITION", NULL, sip_parse_contentdis_header, NULL, NULL,
sip_free_phdr},
{"CONTENT-ENCODING", "e", sip_parse_contentencode_header, NULL, NULL,
sip_free_phdr},
{"CONTENT-LANGUAGE", NULL, sip_parse_contentlang_header, NULL, NULL,
sip_free_phdr},
{"DATE", NULL, sip_parse_date_header, NULL, NULL, sip_free_phdr},
{"ERROR-INFO", NULL, sip_parse_errorinfo_header, NULL, NULL,
sip_free_phdr},
{"EXPIRES", NULL, sip_parse_expire_header, NULL, NULL, sip_free_phdr},
{"IN-REPLY-TO", NULL, sip_parse_inreplyto_header, NULL, NULL,
sip_free_phdr},
{"MIN-EXPIRES", NULL, sip_parse_minexpire_header, NULL, NULL,
sip_free_phdr},
{"MIME-VERSION", NULL, sip_parse_mimeversion_header, NULL, NULL,
sip_free_phdr},
{"ORGANIZATION", NULL, sip_parse_org_header, NULL, NULL, sip_free_phdr},
{"PRIORITY", NULL, sip_parse_priority_header, NULL, NULL,
sip_free_phdr},
{"REQUIRE", NULL, sip_parse_require_header, NULL, NULL, sip_free_phdr},
{"REPLY-TO", NULL, sip_parse_replyto_header, NULL, NULL, sip_free_phdr},
{"RETRY-AFTER", NULL, sip_parse_retryaft_header, NULL, NULL,
sip_free_phdr},
{"SERVER", NULL, sip_parse_server_header, NULL, NULL, sip_free_phdr},
{"SUBJECT", "s", sip_parse_subject_header, NULL, NULL, sip_free_phdr},
{"TIMESTAMP", NULL, sip_parse_timestamp_header, NULL, NULL,
sip_free_phdr},
{"UNSUPPORTED", NULL, sip_parse_usupport_header, NULL, NULL,
sip_free_phdr},
{"SUPPORTED", "k", sip_parse_support_header, NULL, NULL, sip_free_phdr},
{"USER-AGENT", NULL, sip_parse_useragt_header, NULL, NULL,
sip_free_phdr},
{"WARNING", NULL, sip_parse_warn_header, NULL, NULL, sip_free_phdr},
{"ALLOW-EVENTS", "u", sip_parse_allow_events_header, NULL, NULL,
sip_free_phdr},
{"EVENT", "o", sip_parse_event_header, NULL, NULL, sip_free_phdr},
{"SUBSCRIPTION-STATE", NULL, sip_parse_substate_header, NULL, NULL,
sip_free_phdr},
{"AUTHORIZATION", NULL, sip_parse_author_header, NULL, NULL,
sip_free_phdr},
{"AUTHENTICATION-INFO", NULL, sip_parse_ainfo_header, NULL, NULL,
sip_free_phdr},
{"PROXY-AUTHORIZATION", NULL, sip_parse_pauthor_header, NULL, NULL,
sip_free_phdr},
{"PROXY-AUTHENTICATE", NULL, sip_parse_pauthen_header, NULL, NULL,
sip_free_phdr},
{"PROXY-REQUIRE", NULL, sip_parse_preq_header, NULL, NULL,
sip_free_phdr},
{"WWW-AUTHENTICATE", NULL, sip_parse_wauthen_header, NULL, NULL,
sip_free_phdr},
{"RSEQ", NULL, sip_parse_rseq, NULL, NULL, sip_free_phdr},
{"RACK", NULL, sip_parse_rack, NULL, NULL, sip_free_phdr},
{"P-ASSERTED-IDENTITY", NULL, sip_parse_passertedid, NULL, NULL,
sip_free_phdr},
{"P-PREFERRED-IDENTITY", NULL, sip_parse_ppreferredid, NULL, NULL,
sip_free_phdr},
{"PRIVACY", NULL, sip_parse_privacy_header, NULL, NULL, sip_free_phdr},
{NULL, NULL, NULL, NULL, NULL, NULL},
};
#define MAX_SIP_HEADERS \
sizeof (sip_header_function_table) / sizeof (sip_header_function_t)
/*
* External/application provided function table
*/
sip_header_function_t *sip_header_function_table_external = NULL;
/*
* Free parameter list
*/
static void
sip_free_params(sip_param_t *param_list)
{
sip_param_t *param, *next_param;
param = param_list;
while (param != NULL) {
next_param = param->param_next;
free(param);
param = next_param;
}
}
/*
* Common header free routine
*/
void
sip_free_phdr(sip_parsed_header_t *header)
{
sip_hdr_value_t *value;
sip_hdr_value_t *next_value;
if (header == NULL)
return;
value = (sip_hdr_value_t *)header->value;
while (value != NULL) {
sip_free_params(value->sip_param_list);
next_value = value->sip_next_value;
free(value);
value = next_value;
}
free(header);
}
/*
* Free Contact/From/To header
*/
void
sip_free_cftr_header(sip_parsed_header_t *header)
{
sip_hdr_value_t *value;
sip_hdr_value_t *next_value;
if (header == NULL)
return;
value = (sip_hdr_value_t *)header->value;
while (value != NULL) {
next_value = value->sip_next_value;
sip_free_params(value->sip_param_list);
if (value->cftr_name != NULL)
free(value->cftr_name);
if (value->sip_value_parsed_uri != NULL) {
sip_free_parsed_uri(value->sip_value_parsed_uri);
value->sip_value_parsed_uri = NULL;
}
free(value);
value = next_value;
}
free(header);
}
/*
* Return new header
*/
_sip_header_t *
sip_new_header(int header_size)
{
_sip_header_t *new_header;
new_header = calloc(1, sizeof (_sip_header_t));
if (new_header == NULL)
return (NULL);
/*
* We are using snprintf which adds a null character
* so allocate an extra byte which is not part of
* the message header
*/
new_header->sip_hdr_start = calloc(1, header_size + 1);
if (new_header->sip_hdr_start == NULL) {
free(new_header);
return (NULL);
}
new_header->sip_hdr_end = new_header->sip_hdr_start + header_size;
new_header->sip_hdr_current = new_header->sip_hdr_start;
new_header->sip_hdr_allocated = B_TRUE;
return (new_header);
}
/*
* Free the given header
*/
void
sip_free_header(_sip_header_t *sip_header)
{
if (sip_header->sip_hdr_allocated) {
assert(sip_header->sip_hdr_start != NULL);
free(sip_header->sip_hdr_start);
}
if (sip_header->sip_hdr_parsed != NULL) {
assert(sip_header->sip_header_functions != NULL);
if (sip_header->sip_header_functions->header_free != NULL) {
sip_header->sip_header_functions->header_free(
sip_header->sip_hdr_parsed);
}
}
free(sip_header);
}
/*
* Return a copy of the header passed in.
*/
_sip_header_t *
sip_dup_header(_sip_header_t *from)
{
size_t hdr_size;
_sip_header_t *to;
hdr_size = from->sip_hdr_end - from->sip_hdr_start;
to = sip_new_header(hdr_size);
if (to == NULL)
return (NULL);
if (from->sip_header_state == SIP_HEADER_DELETED_VAL) {
to->sip_hdr_end = to->sip_hdr_start +
sip_copy_values(to->sip_hdr_start, from);
} else {
(void) memcpy(to->sip_hdr_start, from->sip_hdr_start, hdr_size);
to->sip_hdr_end = to->sip_hdr_start + hdr_size;
}
to->sip_header_functions = from->sip_header_functions;
return (to);
}
/*
* Copy header with extra_param, if any, to sip_msg
*/
int
_sip_copy_header(_sip_msg_t *sip_msg, _sip_header_t *header, char *extra_param,
boolean_t skip_crlf)
{
_sip_header_t *new_header;
int hdrlen;
int extra_len = 0;
int ncrlf = 0;
char *p;
#ifdef __solaris__
assert(mutex_held(&sip_msg->sip_msg_mutex));
#endif
if (extra_param != NULL) {
extra_len = SIP_SPACE_LEN + sizeof (char) + SIP_SPACE_LEN +
strlen(extra_param);
}
/*
* Just take one if there are more, i.e. if this is the last header
* before the content.
*/
if (skip_crlf) {
if (header->sip_hdr_end - strlen(SIP_CRLF) <=
header->sip_hdr_start) {
goto proceed;
}
p = header->sip_hdr_end - strlen(SIP_CRLF);
while (strncmp(SIP_CRLF, p, strlen(SIP_CRLF)) == 0) {
ncrlf++;
if (p - strlen(SIP_CRLF) < header->sip_hdr_start)
break;
p -= strlen(SIP_CRLF);
}
/*
* Take one CRLF.
*/
ncrlf = (ncrlf - 1) * strlen(SIP_CRLF);
}
proceed:
hdrlen = header->sip_hdr_end - header->sip_hdr_start - ncrlf;
new_header = sip_new_header(hdrlen + extra_len);
if (new_header == NULL)
return (ENOMEM);
if (header->sip_header_state == SIP_HEADER_DELETED_VAL) {
int len;
len = sip_copy_values(new_header->sip_hdr_start, header);
new_header->sip_hdr_end = new_header->sip_hdr_start + len;
hdrlen = hdrlen - len + extra_len;
} else {
(void) memcpy(new_header->sip_hdr_start, header->sip_hdr_start,
hdrlen);
new_header->sip_hdr_end = new_header->sip_hdr_start + hdrlen;
hdrlen = extra_len;
}
if (extra_param != NULL) {
/*
* Find CR
*/
if (sip_find_cr(new_header) != 0) {
sip_free_header(new_header);
return (EINVAL);
}
hdrlen += new_header->sip_hdr_end - new_header->sip_hdr_current;
(void) snprintf(new_header->sip_hdr_current, hdrlen + 1,
" %c %s%s", SIP_SEMI, extra_param, SIP_CRLF);
}
new_header->sip_hdr_end += extra_len;
new_header->sip_header_functions = header->sip_header_functions;
_sip_add_header(sip_msg, new_header, B_TRUE, B_FALSE, NULL);
return (0);
}
/*
* Copy all "header_name" headers from _old_msg to _new_msg
*/
int
_sip_find_and_copy_all_header(_sip_msg_t *_old_msg, _sip_msg_t *_new_msg,
char *header_name)
{
_sip_header_t *header;
int ret = 0;
if (_old_msg == NULL || _new_msg == NULL)
return (EINVAL);
#ifdef __solaris__
assert(mutex_held(&_old_msg->sip_msg_mutex));
#endif
if (_old_msg != _new_msg)
(void) pthread_mutex_lock(&_new_msg->sip_msg_mutex);
header = sip_search_for_header(_old_msg, header_name, NULL);
while (header != NULL) {
ret = _sip_copy_header(_new_msg, header, NULL, B_TRUE);
if (ret != 0)
break;
header = sip_search_for_header(_old_msg, header_name, header);
}
if (_old_msg != _new_msg)
(void) pthread_mutex_unlock(&_new_msg->sip_msg_mutex);
return (ret);
}
/*
* Copy header_name from _old_msg to _new_msg with extra_parm.
*/
int
_sip_find_and_copy_header(sip_msg_t _old_msg, sip_msg_t _new_msg,
char *header_name, char *extra_param, boolean_t lock_newmsg)
{
_sip_header_t *header;
int ret;
if (_old_msg == NULL || _new_msg == NULL)
return (EINVAL);
#ifdef __solaris__
assert(mutex_held(&_old_msg->sip_msg_mutex));
#endif
header = sip_search_for_header(_old_msg, header_name, NULL);
if (header == NULL)
return (EINVAL);
if (lock_newmsg)
(void) pthread_mutex_lock(&_new_msg->sip_msg_mutex);
ret = _sip_copy_header(_new_msg, header, extra_param, B_TRUE);
if (lock_newmsg)
(void) pthread_mutex_unlock(&_new_msg->sip_msg_mutex);
return (ret);
}
/*
* Copy all headers from old_msg to new_msg
*/
int
sip_copy_all_headers(sip_msg_t old_msg, sip_msg_t new_msg)
{
_sip_header_t *header;
_sip_msg_t *_old_msg;
_sip_msg_t *_new_msg;
int ret = 0;
if (old_msg == NULL || new_msg == NULL)
return (EINVAL);
_old_msg = (_sip_msg_t *)old_msg;
_new_msg = (_sip_msg_t *)new_msg;
(void) pthread_mutex_lock(&_old_msg->sip_msg_mutex);
(void) pthread_mutex_lock(&_new_msg->sip_msg_mutex);
header = sip_search_for_header(_old_msg, NULL, NULL);
while (header != NULL) {
ret = _sip_copy_header(_new_msg, header, NULL, B_FALSE);
if (ret != 0)
goto done;
header = sip_search_for_header(_old_msg, NULL, header);
}
done:
(void) pthread_mutex_unlock(&_new_msg->sip_msg_mutex);
(void) pthread_mutex_unlock(&_old_msg->sip_msg_mutex);
return (ret);
}
/*
* Copy start line from msg to sip_msg
*/
int
sip_copy_start_line(sip_msg_t msg, sip_msg_t sip_msg)
{
int len;
_sip_header_t *new_header;
_sip_msg_t *_old_msg;
_sip_msg_t *_sip_msg;
if (msg == NULL || sip_msg == NULL)
return (EINVAL);
_old_msg = (_sip_msg_t *)msg;
_sip_msg = (_sip_msg_t *)sip_msg;
(void) pthread_mutex_lock(&_old_msg->sip_msg_mutex);
if (_old_msg->sip_msg_start_line == NULL) {
(void) pthread_mutex_unlock(&_old_msg->sip_msg_mutex);
return (EINVAL);
}
len = _old_msg->sip_msg_start_line->sip_hdr_end -
_old_msg->sip_msg_start_line->sip_hdr_start;
new_header = sip_new_header(len);
if (new_header == NULL) {
(void) pthread_mutex_unlock(&_old_msg->sip_msg_mutex);
return (ENOMEM);
}
new_header->sip_hdr_sipmsg = _sip_msg;
(void) pthread_mutex_lock(&sip_msg->sip_msg_mutex);
_sip_msg->sip_msg_start_line = new_header;
_sip_msg->sip_msg_len = len;
(void) strncpy(_sip_msg->sip_msg_start_line->sip_hdr_start,
_old_msg->sip_msg_start_line->sip_hdr_start, len);
(void) sip_parse_first_line(_sip_msg->sip_msg_start_line,
&_sip_msg->sip_msg_req_res);
(void) pthread_mutex_unlock(&_old_msg->sip_msg_mutex);
(void) pthread_mutex_unlock(&sip_msg->sip_msg_mutex);
return (0);
}
/*
* Delete start line from sip_msg
*/
int
sip_delete_start_line_locked(_sip_msg_t *_sip_msg)
{
_sip_header_t *header;
_sip_header_t *next_header;
if (_sip_msg->sip_msg_start_line == NULL)
return (EINVAL);
header = _sip_msg->sip_msg_start_line;
while (header != NULL) {
next_header = header->sip_hdr_next;
_sip_msg->sip_msg_len -= (header->sip_hdr_end -
header->sip_hdr_start);
sip_free_header(header);
header = next_header;
}
_sip_msg->sip_msg_start_line = NULL;
/*
* Also delete the sip_msg_req_res info since we don't have a start
* line.
*/
while (_sip_msg->sip_msg_req_res != NULL) {
sip_message_type_t *sip_msg_type_ptr;
sip_msg_type_ptr = _sip_msg->sip_msg_req_res->sip_next;
if (_sip_msg->sip_msg_req_res->is_request) {
sip_request_t *reqline;
reqline = &_sip_msg->sip_msg_req_res->U.sip_request;
if (reqline->sip_parse_uri != NULL) {
sip_free_parsed_uri(reqline->sip_parse_uri);
reqline->sip_parse_uri = NULL;
}
}
free(_sip_msg->sip_msg_req_res);
_sip_msg->sip_msg_req_res = sip_msg_type_ptr;
}
return (0);
}
/*
* Delete start line from sip_msg
*/
int
sip_delete_start_line(sip_msg_t sip_msg)
{
_sip_msg_t *_sip_msg;
int ret;
if (sip_msg == NULL)
return (EINVAL);
_sip_msg = (_sip_msg_t *)sip_msg;
(void) pthread_mutex_lock(&_sip_msg->sip_msg_mutex);
ret = sip_delete_start_line_locked(_sip_msg);
(void) pthread_mutex_unlock(&_sip_msg->sip_msg_mutex);
return (ret);
}
/*
* Delete all headers from _sip_msg
*/
void
sip_delete_all_headers(_sip_msg_t *_sip_msg)
{
_sip_header_t *header;
#ifdef __solaris__
assert(mutex_held(&_sip_msg->sip_msg_mutex));
#endif
header = _sip_msg->sip_msg_headers_start;
while (header != NULL) {
_sip_header_t *next_header;
next_header = header->sip_hdr_next;
sip_free_header(header);
header = next_header;
}
_sip_msg->sip_msg_headers_start = NULL;
_sip_msg->sip_msg_headers_end = NULL;
}
/*
* Delete and free the named header. If header_name is null
* free all headers.
*/
void
sip_delete_headers(sip_msg_t sip_msg, char *header_name)
{
_sip_header_t *header;
_sip_msg_t *_sip_msg;
_sip_msg = (_sip_msg_t *)sip_msg;
#ifdef __solaris__
assert(mutex_held(&_sip_msg->sip_msg_mutex));
#endif
header = sip_search_for_header(_sip_msg, header_name, NULL);
if (header == NULL)
return;
while (header != NULL) {
if (_sip_msg->sip_msg_headers_start == header) {
_sip_msg->sip_msg_headers_start = header->sip_hdr_next;
} else {
header->sip_hdr_prev->sip_hdr_next =
header->sip_hdr_next;
}
if (_sip_msg->sip_msg_headers_end == header) {
_sip_msg->sip_msg_headers_end = header->sip_hdr_prev;
} else {
header->sip_hdr_next->sip_hdr_prev =
header->sip_hdr_prev;
}
sip_free_header(header);
if (header_name != NULL)
return;
else
header = sip_search_for_header(_sip_msg, NULL, NULL);
}
}
/*
* Add a header to sip_msg. If header_name is provided then the new header
* is added before that header, if first is set, or after. If append is
* set, then the header is added to the end of the header list.
*/
void
_sip_add_header(_sip_msg_t *sip_msg, _sip_header_t *new_header,
boolean_t append, boolean_t first, char *header_name)
{
_sip_header_t *header = NULL;
if (sip_msg == NULL || new_header == NULL)
return;
#ifdef __solaris__
assert(mutex_held(&sip_msg->sip_msg_mutex));
#endif
new_header->sip_hdr_sipmsg = sip_msg;
if (header_name != NULL) {
_sip_header_t *header_tmp;
header = sip_search_for_header(sip_msg, header_name, NULL);
header_tmp = header;
if (!first) {
while (header != NULL) {
header_tmp = header;
header = sip_search_for_header(sip_msg,
header_name, header);
}
}
header = header_tmp;
if (header == NULL)
append = B_TRUE;
}
if (header != NULL) {
if (append) {
new_header->sip_hdr_prev = header;
if (sip_msg->sip_msg_headers_end == header) {
sip_msg->sip_msg_headers_end = new_header;
new_header->sip_hdr_next = NULL;
} else {
header->sip_hdr_next->sip_hdr_prev = new_header;
new_header->sip_hdr_next = header->sip_hdr_next;
}
header->sip_hdr_next = new_header;
} else {
new_header->sip_hdr_next = header;
if (sip_msg->sip_msg_headers_start == header) {
sip_msg->sip_msg_headers_start = new_header;
new_header->sip_hdr_prev = NULL;
} else {
header->sip_hdr_prev->sip_hdr_next = new_header;
new_header->sip_hdr_prev = header->sip_hdr_prev;
}
header->sip_hdr_prev = new_header;
}
} else {
if (append) {
if (sip_msg->sip_msg_headers_end != NULL) {
sip_msg->sip_msg_headers_end->sip_hdr_next =
new_header;
} else {
sip_msg->sip_msg_headers_start = new_header;
}
new_header->sip_hdr_prev =
sip_msg->sip_msg_headers_end;
new_header->sip_hdr_next = NULL;
sip_msg->sip_msg_headers_end = new_header;
} else {
if (sip_msg->sip_msg_headers_start != NULL) {
sip_msg->sip_msg_headers_start->sip_hdr_prev =
new_header;
} else {
sip_msg->sip_msg_headers_end = new_header;
}
new_header->sip_hdr_next =
sip_msg->sip_msg_headers_start;
new_header->sip_hdr_prev = NULL;
sip_msg->sip_msg_headers_start = new_header;
}
}
sip_msg->sip_msg_len += new_header->sip_hdr_end -
new_header->sip_hdr_start;
}
/*
* Scan through the function table and return the entry for the given header
* type.
*/
sip_header_function_t *
_sip_get_header_functions(sip_header_function_t *sip_header_function_table,
_sip_header_t *sip_header, char *header_name)
{
int len;
int i = 0;
if (sip_header == NULL && header_name == NULL)
return (NULL);
/*
* If header_name is NULL we first have to locate the name
*/
if (header_name == NULL) {
if (sip_skip_white_space(sip_header) != 0) {
return (NULL);
}
header_name = sip_header->sip_hdr_current;
if (sip_find_separator(sip_header, SIP_HCOLON, (char)NULL,
(char)NULL, B_FALSE) != 0) {
return (NULL);
}
len = sip_header->sip_hdr_current - header_name;
} else {
len = strlen(header_name);
}
if (len > 0) {
while (sip_header_function_table[i].header_name != NULL ||
sip_header_function_table[i].header_short_name != NULL) {
if (sip_header_function_table[i].header_name != NULL &&
len ==
strlen(sip_header_function_table[i].header_name)) {
if (strncasecmp(header_name,
sip_header_function_table[i].
header_name, len) == 0) {
break;
}
} else if (sip_header_function_table[i].
header_short_name != NULL && len ==
strlen(sip_header_function_table[i].
header_short_name)) {
if (strncasecmp(header_name,
sip_header_function_table[i].
header_short_name, len) == 0) {
break;
}
}
i++;
}
}
if (sip_header != NULL)
sip_header->sip_hdr_current = sip_header->sip_hdr_start;
if (sip_header_function_table[i].header_name == NULL)
return (NULL);
return (&sip_header_function_table[i]);
}
/*
* Return the entry from the function table for the given header
*/
sip_header_function_t *
sip_get_header_functions(_sip_header_t *sip_header, char *header_name)
{
sip_header_function_t *func;
sip_header_function_t *header_f_table = NULL;
if (sip_header_function_table_external != NULL) {
header_f_table = _sip_get_header_functions(
sip_header_function_table_external,
sip_header, header_name);
if (header_f_table != NULL)
return (header_f_table);
}
func = _sip_get_header_functions(sip_header_function_table, sip_header,
header_name);
return (func);
}
/*
* Search for the header name passed in.
*/
_sip_header_t *
sip_search_for_header(_sip_msg_t *sip_msg, char *header_name,
_sip_header_t *old_header)
{
int len = 0;
int full_len = 0;
int compact_len = 0;
_sip_header_t *header = NULL;
char *compact_name = NULL;
char *full_name = NULL;
sip_header_function_t *header_f_table = NULL;
if (sip_msg == NULL)
return (NULL);
#ifdef __solaris__
assert(mutex_held(&sip_msg->sip_msg_mutex));
#endif
if (header_name != NULL) {
header_f_table = sip_get_header_functions(NULL, header_name);
if (header_f_table != NULL) {
full_name = header_f_table->header_name;
compact_name = header_f_table->header_short_name;
if (full_name != NULL)
full_len = strlen(full_name);
if (compact_name != NULL)
compact_len = strlen(compact_name);
} else {
header_f_table = &sip_header_function_table[0];
full_name = header_name;
full_len = strlen(full_name);
}
}
if (old_header != NULL)
header = old_header->sip_hdr_next;
else
header = sip_msg->sip_msg_headers_start;
while (header != NULL) {
if (header->sip_header_state == SIP_HEADER_DELETED) {
header = header->sip_hdr_next;
continue;
}
if (compact_len == 0 && full_len == 0)
break;
header->sip_hdr_current = header->sip_hdr_start;
if (sip_skip_white_space(header)) {
header = header->sip_hdr_next;
continue;
}
len = header->sip_hdr_end - header->sip_hdr_current;
if (full_name != NULL && (full_len <= len) &&
strncasecmp(header->sip_hdr_current, full_name,
full_len) == 0) {
header->sip_hdr_current += full_len;
if (sip_skip_white_space(header)) {
header = header->sip_hdr_next;
continue;
}
if (*header->sip_hdr_current == SIP_HCOLON) {
header_name = full_name;
break;
}
}
if (compact_name != NULL && (compact_len <= len) &&
strncasecmp(header->sip_hdr_current, compact_name,
compact_len) == 0) {
header->sip_hdr_current += compact_len;
if (sip_skip_white_space(header)) {
header = header->sip_hdr_next;
continue;
}
if (*header->sip_hdr_current == SIP_HCOLON) {
header_name = compact_name;
break;
}
}
header = header->sip_hdr_next;
}
if (header != NULL) {
header->sip_hdr_current = header->sip_hdr_start;
if (header_f_table == NULL) {
header_f_table =
sip_get_header_functions(header, header_name);
if (header_f_table == NULL)
header_f_table = &sip_header_function_table[0];
}
header->sip_header_functions = header_f_table;
}
return (header);
}
/*
* Return the start line as a string. Caller frees string
*/
char *
_sip_startline_to_str(_sip_msg_t *sip_msg, int *error)
{
char *slstr;
int len;
if (error != NULL)
*error = 0;
if (sip_msg == NULL || sip_msg->sip_msg_start_line == NULL) {
if (error != NULL)
*error = EINVAL;
return (NULL);
}
(void) pthread_mutex_lock(&sip_msg->sip_msg_mutex);
len = sip_msg->sip_msg_start_line->sip_hdr_end -
sip_msg->sip_msg_start_line->sip_hdr_start - 2;
if ((slstr = malloc(len + 1)) == NULL) {
(void) pthread_mutex_unlock(&sip_msg->sip_msg_mutex);
if (error != NULL)
*error = ENOMEM;
return (NULL);
}
(void) strncpy(slstr, sip_msg->sip_msg_start_line->sip_hdr_start, len);
(void) pthread_mutex_unlock(&sip_msg->sip_msg_mutex);
slstr[len] = '\0';
return (slstr);
}
/*
* Return the given header as a string. Caller frees string
*/
char *
sip_hdr_to_str(sip_header_t sip_header, int *error)
{
char *hdrstr;
char *tmpptr;
_sip_header_t *_sip_header;
int len;
if (error != NULL)
*error = 0;
if (sip_header == NULL) {
if (error != NULL)
*error = EINVAL;
return (NULL);
}
_sip_header = (_sip_header_t *)sip_header;
if (_sip_header->sip_header_state == SIP_HEADER_DELETED) {
if (_sip_header->sip_hdr_sipmsg != NULL) {
(void) pthread_mutex_unlock(
&_sip_header->sip_hdr_sipmsg->sip_msg_mutex);
}
if (error != NULL)
*error = EINVAL;
return (NULL);
}
if (_sip_header->sip_hdr_sipmsg != NULL) {
(void) pthread_mutex_lock(
&_sip_header->sip_hdr_sipmsg->sip_msg_mutex);
}
len = _sip_header->sip_hdr_end - _sip_header->sip_hdr_start;
hdrstr = malloc(len);
if (hdrstr == NULL) {
if (_sip_header->sip_hdr_sipmsg != NULL) {
(void) pthread_mutex_unlock(
&_sip_header->sip_hdr_sipmsg->sip_msg_mutex);
}
if (error != NULL)
*error = ENOMEM;
return (NULL);
}
if (_sip_header->sip_header_state == SIP_HEADER_DELETED_VAL) {
len = sip_copy_values(hdrstr, _sip_header);
} else {
(void) strncpy(hdrstr, _sip_header->sip_hdr_start, len);
}
if (_sip_header->sip_hdr_sipmsg != NULL) {
(void) pthread_mutex_unlock(
&_sip_header->sip_hdr_sipmsg->sip_msg_mutex);
}
tmpptr = hdrstr + len;
while (*tmpptr-- != '\n') {
if (tmpptr == _sip_header->sip_hdr_start) {
free(hdrstr);
if (error != NULL)
*error = EINVAL;
return (NULL);
}
}
*tmpptr = '\0';
return (hdrstr);
}
/*
* Given a param list find the named parameter.
* Returns a pointer to the value or NULL.
*/
sip_param_t *
sip_get_param_from_list(sip_param_t *param_list, char *param_name)
{
while (param_list != NULL) {
if (param_list->param_name.sip_str_len == strlen(param_name) &&
strncasecmp(param_list->param_name.sip_str_ptr, param_name,
strlen(param_name)) == 0) {
return (param_list);
}
param_list = param_list->param_next;
}
return (NULL);
}