+/*
+ * Copyright (c) 2010, JANET(UK)
+ * 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 JANET(UK) 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 "gssapiP_eap.h"
+
+static GSSEAP_THREAD_ONCE krbContextKeyOnce = GSSEAP_ONCE_INITIALIZER;
+static GSSEAP_THREAD_KEY krbContextKey;
+
+static void
+destroyKrbContext(void *arg)
+{
+ krb5_context context = (krb5_context)arg;
+
+ if (context != NULL)
+ krb5_free_context(context);
+}
+
+static void
+createKrbContextKey(void)
+{
+ GSSEAP_KEY_CREATE(&krbContextKey, destroyKrbContext);
+}
+
+OM_uint32
+gssEapKerberosInit(OM_uint32 *minor, krb5_context *context)
+{
+ *minor = 0;
+
+ GSSEAP_ONCE(&krbContextKeyOnce, createKrbContextKey);
+
+ *context = GSSEAP_GETSPECIFIC(krbContextKey);
+ if (*context == NULL) {
+ *minor = krb5_init_context(context);
+ if (*minor == 0) {
+ if (GSSEAP_SETSPECIFIC(krbContextKey, *context) != 0) {
+ *minor = errno;
+ krb5_free_context(*context);
+ *context = NULL;
+ }
+ }
+ }
+
+ return *minor == 0 ? GSS_S_COMPLETE : GSS_S_FAILURE;
+}