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kamailio/modules/tls/tls_util.c

103 lines
2.3 KiB

/*
* $Id$
*
* TLS module - common functions
*
* Copyright (C) 2001-2003 FhG FOKUS
* Copyright (C) 2004,2005 Free Software Foundation, Inc.
* Copyright (C) 2005 iptelorg GmbH
*
* This file is part of SIP-router, a free SIP server.
*
* SIP-router 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
*
* SIP-router 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
*/
#define _GNU_SOURCE 1 /* Needed for strndup */
#include <string.h>
#include <libgen.h>
#include "../../mem/shm_mem.h"
#include "../../globals.h"
#include "tls_mod.h"
#include "tls_util.h"
/*!
* \file
* \brief SIP-router TLS support :: Common functions
* \ingroup tls
* Module: \ref tls
*/
/*
* Make a shared memory copy of ASCII zero terminated string
* Return value: -1 on error
* 0 on success
*/
int shm_asciiz_dup(char** dest, char* val)
{
char* ret;
int len;
if (!val) {
*dest = NULL;
return 0;
}
len = strlen(val);
ret = shm_malloc(len + 1);
if (!ret) {
ERR("No memory left\n");
return -1;
}
memcpy(ret, val, len + 1);
*dest = ret;
return 0;
}
/*
* Delete old TLS configuration that is not needed anymore
*/
void collect_garbage(void)
{
tls_domains_cfg_t* prev, *cur;
/* Make sure we do not run two garbage collectors
* at the same time
*/
lock_get(tls_domains_cfg_lock);
/* Skip the current configuration, garbage starts
* with the 2nd element on the list
*/
prev = *tls_domains_cfg;
cur = (*tls_domains_cfg)->next;
while(cur) {
if (cur->ref_count == 0) {
/* Not referenced by any existing connection */
prev->next = cur->next;
tls_free_cfg(cur);
}
prev = cur;
cur = cur->next;
}
lock_release(tls_domains_cfg_lock);
}