diff options
Diffstat (limited to 'source4/heimdal/lib/gssapi/krb5/init.c')
-rw-r--r-- | source4/heimdal/lib/gssapi/krb5/init.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/source4/heimdal/lib/gssapi/krb5/init.c b/source4/heimdal/lib/gssapi/krb5/init.c new file mode 100644 index 0000000000..cbef8740b7 --- /dev/null +++ b/source4/heimdal/lib/gssapi/krb5/init.c @@ -0,0 +1,111 @@ +/* + * Copyright (c) 1997 - 2001, 2003 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,v 1.9 2006/10/07 22:14:58 lha Exp $"); + +static HEIMDAL_MUTEX _gsskrb5_context_mutex = HEIMDAL_MUTEX_INITIALIZER; +static int created_key; +static HEIMDAL_thread_key gssapi_context_key; + +static void +gssapi_destroy_thread_context(void *ptr) +{ + struct gssapi_thr_context *ctx = ptr; + + if (ctx == NULL) + return; + if (ctx->error_string) + free(ctx->error_string); + HEIMDAL_MUTEX_destroy(&ctx->mutex); + free(ctx); +} + + +struct gssapi_thr_context * +_gsskrb5_get_thread_context(int createp) +{ + struct gssapi_thr_context *ctx; + int ret; + + HEIMDAL_MUTEX_lock(&_gsskrb5_context_mutex); + + if (!created_key) + abort(); + ctx = HEIMDAL_getspecific(gssapi_context_key); + if (ctx == NULL) { + if (!createp) + goto fail; + ctx = malloc(sizeof(*ctx)); + if (ctx == NULL) + goto fail; + ctx->error_string = NULL; + HEIMDAL_MUTEX_init(&ctx->mutex); + HEIMDAL_setspecific(gssapi_context_key, ctx, ret); + if (ret) + goto fail; + } + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + return ctx; + fail: + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + if (ctx) + free(ctx); + return NULL; +} + +krb5_error_code +_gsskrb5_init (void) +{ + krb5_error_code ret = 0; + + HEIMDAL_MUTEX_lock(&_gsskrb5_context_mutex); + + if(_gsskrb5_context == NULL) + ret = krb5_init_context (&_gsskrb5_context); + if (ret == 0 && !created_key) { + HEIMDAL_key_create(&gssapi_context_key, + gssapi_destroy_thread_context, + ret); + if (ret) { + krb5_free_context(_gsskrb5_context); + _gsskrb5_context = NULL; + } else + created_key = 1; + } + + HEIMDAL_MUTEX_unlock(&_gsskrb5_context_mutex); + + return ret; +} |