1178825Sdfr/* 2233294Sstas * Copyright (c) 1997 - 2001, 2003, 2006 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 5178825Sdfr * 6233294Sstas * Redistribution and use in source and binary forms, with or without 7233294Sstas * modification, are permitted provided that the following conditions 8233294Sstas * are met: 9178825Sdfr * 10233294Sstas * 1. Redistributions of source code must retain the above copyright 11233294Sstas * notice, this list of conditions and the following disclaimer. 12178825Sdfr * 13233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 14233294Sstas * notice, this list of conditions and the following disclaimer in the 15233294Sstas * documentation and/or other materials provided with the distribution. 16178825Sdfr * 17233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 18233294Sstas * may be used to endorse or promote products derived from this software 19233294Sstas * without specific prior written permission. 20178825Sdfr * 21233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31233294Sstas * SUCH DAMAGE. 32178825Sdfr */ 33178825Sdfr 34233294Sstas#include "gsskrb5_locl.h" 35178825Sdfr 36178825Sdfrstatic HEIMDAL_MUTEX context_mutex = HEIMDAL_MUTEX_INITIALIZER; 37178825Sdfrstatic int created_key; 38178825Sdfrstatic HEIMDAL_thread_key context_key; 39178825Sdfr 40178825Sdfrstatic void 41178825Sdfrdestroy_context(void *ptr) 42178825Sdfr{ 43178825Sdfr krb5_context context = ptr; 44178825Sdfr 45178825Sdfr if (context == NULL) 46178825Sdfr return; 47178825Sdfr krb5_free_context(context); 48178825Sdfr} 49178825Sdfr 50178825Sdfrkrb5_error_code 51178825Sdfr_gsskrb5_init (krb5_context *context) 52178825Sdfr{ 53178825Sdfr krb5_error_code ret = 0; 54178825Sdfr 55178825Sdfr HEIMDAL_MUTEX_lock(&context_mutex); 56178825Sdfr 57178825Sdfr if (!created_key) { 58178825Sdfr HEIMDAL_key_create(&context_key, destroy_context, ret); 59178825Sdfr if (ret) { 60178825Sdfr HEIMDAL_MUTEX_unlock(&context_mutex); 61178825Sdfr return ret; 62178825Sdfr } 63178825Sdfr created_key = 1; 64178825Sdfr } 65178825Sdfr HEIMDAL_MUTEX_unlock(&context_mutex); 66178825Sdfr 67178825Sdfr *context = HEIMDAL_getspecific(context_key); 68178825Sdfr if (*context == NULL) { 69178825Sdfr 70178825Sdfr ret = krb5_init_context(context); 71178825Sdfr if (ret == 0) { 72178825Sdfr HEIMDAL_setspecific(context_key, *context, ret); 73178825Sdfr if (ret) { 74178825Sdfr krb5_free_context(*context); 75178825Sdfr *context = NULL; 76178825Sdfr } 77178825Sdfr } 78178825Sdfr } 79178825Sdfr 80178825Sdfr return ret; 81178825Sdfr} 82