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-rw-r--r--util/messages-krb5.c50
1 files changed, 38 insertions, 12 deletions
diff --git a/util/messages-krb5.c b/util/messages-krb5.c
index 7f35d29..23fd56a 100644
--- a/util/messages-krb5.c
+++ b/util/messages-krb5.c
@@ -1,15 +1,34 @@
/*
- * Error handling for Kerberos v5.
+ * Error handling for Kerberos.
*
* Provides versions of die and warn that take a Kerberos context and a
* Kerberos error code and append the Kerberos error message to the provided
* formatted message.
*
+ * The canonical version of this file is maintained in the rra-c-util package,
+ * which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>.
+ *
* Written by Russ Allbery <rra@stanford.edu>
* Copyright 2006, 2007, 2008, 2009, 2010
- * Board of Trustees, Leland Stanford Jr. University
+ * The Board of Trustees of the Leland Stanford Junior University
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * See LICENSE for licensing terms.
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*/
#include <config.h>
@@ -32,12 +51,15 @@ die_krb5(krb5_context ctx, krb5_error_code code, const char *format, ...)
char *message;
va_list args;
- k5_msg = krb5_get_error_message(ctx, code);
+ if (ctx != NULL)
+ k5_msg = krb5_get_error_message(ctx, code);
va_start(args, format);
- if (xvasprintf(&message, format, args) < 0)
- die("internal error: unable to format error message");
+ xvasprintf(&message, format, args);
va_end(args);
- die("%s: %s", message, k5_msg);
+ if (k5_msg == NULL)
+ die("%s", message);
+ else
+ die("%s: %s", message, k5_msg);
}
@@ -51,12 +73,16 @@ warn_krb5(krb5_context ctx, krb5_error_code code, const char *format, ...)
char *message;
va_list args;
- k5_msg = krb5_get_error_message(ctx, code);
+ if (ctx != NULL)
+ k5_msg = krb5_get_error_message(ctx, code);
va_start(args, format);
- if (xvasprintf(&message, format, args) < 0)
- die("internal error: unable to format error message");
+ xvasprintf(&message, format, args);
va_end(args);
- warn("%s: %s", message, k5_msg);
+ if (k5_msg == NULL)
+ warn("%s", message);
+ else
+ warn("%s: %s", message, k5_msg);
free(message);
- krb5_free_error_message(ctx, k5_msg);
+ if (k5_msg != NULL)
+ krb5_free_error_message(ctx, k5_msg);
}