Update util code and import Kerberos portability glue

Use the Kerberos portability layer from rra-c-util 3.0 and avoid
Kerberos API calls deprecated on Heimdal.  Break util/util.h into
separate header files and update all source files accordingly.

The test suite is not yet updated.  That will come in subsequent
commits.

1 files changed, 39 insertions, 0 deletions

diff --git a/util/messages-krb5.h b/util/messages-krb5.h
new file mode 100644
index 0000000..3b763c8
--- /dev/null
+++ b/util/messages-krb5.h
@@ -0,0 +1,39 @@
+/*
+ * Prototypes for error handling for Kerberos.
+ *
+ * Written by Russ Allbery <rra@stanford.edu>
+ * Copyright 2006, 2007, 2008, 2009, 2010
+ *     Board of Trustees, Leland Stanford Jr. University
+ *
+ * See LICENSE for licensing terms.
+ */
+
+#ifndef UTIL_MESSAGES_KRB5_H
+#define UTIL_MESSAGES_KRB5_H 1
+
+#include <config.h>
+#include <portable/macros.h>
+
+#include <krb5.h>
+#include <sys/types.h>
+
+BEGIN_DECLS
+
+/* Default to a hidden visibility for all util functions. */
+#pragma GCC visibility push(hidden)
+
+/*
+ * The Kerberos versions of the reporting functions.  These take a context and
+ * an error code to get the Kerberos error.
+ */
+void die_krb5(krb5_context, krb5_error_code, const char *, ...)
+    __attribute__((__nonnull__, __noreturn__, __format__(printf, 3, 4)));
+void warn_krb5(krb5_context, krb5_error_code, const char *, ...)
+    __attribute__((__nonnull__, __format__(printf, 3, 4)));
+
+/* Undo default visibility change. */
+#pragma GCC visibility pop
+
+END_DECLS
+
+#endif /* UTIL_MESSAGES_KRB5_H */