1 files changed, 95 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/gssapi/krb5/context_time.c b/crypto/heimdal/lib/gssapi/krb5/context_time.c
new file mode 100644
index 0000000..b57ac78
--- /dev/null
+++ b/crypto/heimdal/lib/gssapi/krb5/context_time.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 1997 - 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: context_time.c 19031 2006-11-13 18:02:57Z lha $");
+
+OM_uint32
+_gsskrb5_lifetime_left(OM_uint32 *minor_status, 
+		       krb5_context context,
+		       OM_uint32 lifetime,
+		       OM_uint32 *lifetime_rec)
+{
+    krb5_timestamp timeret;
+    krb5_error_code kret;
+
+    if (lifetime == 0) {
+	*lifetime_rec = GSS_C_INDEFINITE;
+	return GSS_S_COMPLETE;
+    }
+
+    kret = krb5_timeofday(context, &timeret);
+    if (kret) {
+	*minor_status = kret;
+	return GSS_S_FAILURE;
+    }
+
+    if (lifetime < timeret) 
+	*lifetime_rec = 0;
+    else
+	*lifetime_rec = lifetime - timeret;
+
+    return GSS_S_COMPLETE;
+}
+
+
+OM_uint32 _gsskrb5_context_time
+           (OM_uint32 * minor_status,
+            const gss_ctx_id_t context_handle,
+            OM_uint32 * time_rec
+           )
+{
+    krb5_context context;
+    OM_uint32 lifetime;
+    OM_uint32 major_status;
+    const gsskrb5_ctx ctx = (const gsskrb5_ctx) context_handle;
+
+    GSSAPI_KRB5_INIT (&context);
+
+    HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex);
+    lifetime = ctx->lifetime;
+    HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex);
+
+    major_status = _gsskrb5_lifetime_left(minor_status, context,
+					  lifetime, time_rec);
+    if (major_status != GSS_S_COMPLETE)
+	return major_status;
+
+    *minor_status = 0;
+
+    if (*time_rec == 0)
+	return GSS_S_CONTEXT_EXPIRED;
+	
+    return GSS_S_COMPLETE;
+}