Update to rra-c-util 5.10 and C TAP Harness 3.4

Update to rra-c-util 5.10:

* Add missing va_end to xasprintf implementation.
* Fix Perl test suite framework for new Automake relative paths.
* Improve portability to Kerberos included in Solaris 10.
* Use appropriate warning flags with Clang (currently not warning clean).

Update to C TAP Harness 3.4:

* Fix segfault in runtests with an empty test list.
* Display verbose test results with -v or C_TAP_VERBOSE.
* Test infrastructure builds cleanly with Clang warnings.
* Support comments and blank lines in test lists.

5 files changed, 20 insertions, 12 deletions

diff --git a/util/macros.h b/util/macros.h
index d071793..4a773a2 100644
--- a/util/macros.h
+++ b/util/macros.h
@@ -29,6 +29,10 @@
 #define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
 #define ARRAY_END(array)  (&(array)[ARRAY_SIZE(array)])
 
+/* Used to name the elements of the array passed to pipe. */
+#define PIPE_READ  0
+#define PIPE_WRITE 1
+
 /* Used for unused parameters to silence gcc warnings. */
 #define UNUSED __attribute__((__unused__))
 
diff --git a/util/messages.c b/util/messages.c
index a43d962..b5c2dba 100644
--- a/util/messages.c
+++ b/util/messages.c
@@ -225,7 +225,7 @@ message_log_stderr(size_t len UNUSED, const char *fmt, va_list args, int err)
  * This needs further attention on Windows.  For example, it currently doesn't
  * log the errno information.
  */
-static void
+static void __attribute__((__format__(printf, 3, 0)))
 message_log_syslog(int pri, size_t len, const char *fmt, va_list args, int err)
 {
     char *buffer;
diff --git a/util/messages.h b/util/messages.h
index 8c731b7..cf91ba7 100644
--- a/util/messages.h
+++ b/util/messages.h
@@ -84,24 +84,25 @@ void message_handlers_reset(void);
  * argument list, and the errno setting if any.
  */
 void message_log_stdout(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_stderr(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_debug(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_info(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_notice(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_warning(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_err(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 void message_log_syslog_crit(size_t, const char *, va_list, int)
-    __attribute__((__nonnull__));
+    __attribute__((__format__(printf, 2, 0), __nonnull__));
 
 /* The type of a message handler. */
-typedef void (*message_handler_func)(size_t, const char *, va_list, int);
+typedef void (*message_handler_func)(size_t, const char *, va_list, int)
+    __attribute__((__format__(printf, 2, 0)));
 
 /* If non-NULL, called before exit and its return value passed to exit. */
 extern int (*message_fatal_cleanup)(void);
diff --git a/util/xmalloc.c b/util/xmalloc.c
index 721447a..7fb0405 100644
--- a/util/xmalloc.c
+++ b/util/xmalloc.c
@@ -12,7 +12,7 @@
  *      buffer = xmalloc(1024);
  *      xrealloc(buffer, 2048);
  *      free(buffer);
- *      buffer = xcalloc(1024);
+ *      buffer = xcalloc(1, 1024);
  *      free(buffer);
  *      buffer = xstrdup(string);
  *      free(buffer);
@@ -62,6 +62,7 @@
  * 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/>.
  *
+ * Copyright 2015 Russ Allbery <eagle@eyrie.org>
  * Copyright 2012, 2013, 2014
  *     The Board of Trustees of the Leland Stanford Junior University
  * Copyright (c) 2004, 2005, 2006
@@ -258,6 +259,7 @@ x_asprintf(char **strp, const char *file, int line, const char *fmt, ...)
         status = vasprintf(strp, fmt, args_copy);
         va_end(args_copy);
     }
+    va_end(args);
 }
 #else /* !(HAVE_C99_VAMACROS || HAVE_GNU_VAMACROS) */
 void
@@ -280,5 +282,6 @@ x_asprintf(char **strp, const char *fmt, ...)
         status = vasprintf(strp, fmt, args_copy);
         va_end(args_copy);
     }
+    va_end(args);
 }
 #endif /* !(HAVE_C99_VAMACROS || HAVE_GNU_VAMACROS) */
diff --git a/util/xmalloc.h b/util/xmalloc.h
index a4b4686..6aa9b93 100644
--- a/util/xmalloc.h
+++ b/util/xmalloc.h
@@ -90,7 +90,7 @@ char *x_strdup(const char *, const char *, int)
 char *x_strndup(const char *, size_t, const char *, int)
     __attribute__((__malloc__, __nonnull__));
 void x_vasprintf(char **, const char *, va_list, const char *, int)
-    __attribute__((__nonnull__));
+    __attribute__((__nonnull__, __format__(printf, 2, 0)));
 
 /* asprintf special case. */
 #if HAVE_C99_VAMACROS || HAVE_GNU_VAMACROS