diff options
Diffstat (limited to 'crypto/heimdal/lib/gssapi/krb5/init.c')
| -rw-r--r-- | crypto/heimdal/lib/gssapi/krb5/init.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/krb5/init.c b/crypto/heimdal/lib/gssapi/krb5/init.c new file mode 100644 index 000000000000..3bbdcc8ff1a2 --- /dev/null +++ b/crypto/heimdal/lib/gssapi/krb5/init.c @@ -0,0 +1,83 @@ +/* + * 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 "krb5/gsskrb5_locl.h" + +RCSID("$Id: init.c 19031 2006-11-13 18:02:57Z lha $"); + +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; +} |