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/*
* Copyright (c) 1997 - 2001, 2003, 2006 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "gsskrb5_locl.h"
static HEIMDAL_MUTEX context_mutex = HEIMDAL_MUTEX_INITIALIZER;
static int created_key;
static HEIMDAL_thread_key context_key;
static void
destroy_context(void *ptr)
{
krb5_context context = ptr;
if (context == NULL)
return;
krb5_free_context(context);
}
krb5_error_code
_gsskrb5_init (krb5_context *context)
{
krb5_error_code ret = 0;
HEIMDAL_MUTEX_lock(&context_mutex);
if (!created_key) {
HEIMDAL_key_create(&context_key, destroy_context, ret);
if (ret) {
HEIMDAL_MUTEX_unlock(&context_mutex);
return ret;
}
created_key = 1;
}
HEIMDAL_MUTEX_unlock(&context_mutex);
*context = HEIMDAL_getspecific(context_key);
if (*context == NULL) {
ret = krb5_init_context(context);
if (ret == 0) {
HEIMDAL_setspecific(context_key, *context, ret);
if (ret) {
krb5_free_context(*context);
*context = NULL;
}
}
}
return ret;
}
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