X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fprintf-args.c;h=497891466239c9078089c1d9c813d14e8ae86a01;hb=c532b2a8ef48d317a1bc348584c00880ea7c5ba6;hp=f039b2d3088f687257bf9654608a3ba81957a9fd;hpb=9f88c0b0e0cfa8a9c25f1db4f58b837c7b891575;p=gnulib.git

diff --git a/lib/printf-args.c b/lib/printf-args.c
index f039b2d30..497891466 100644
--- a/lib/printf-args.c
+++ b/lib/printf-args.c
@@ -15,16 +15,25 @@
    with this program; if not, write to the Free Software Foundation,
    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
-#include <config.h>
+/* This file can be parametrized with the following macros:
+     ENABLE_UNISTDIO    Set to 1 to enable the unistdio extensions.
+     PRINTF_FETCHARGS   Name of the function to be defined.
+     STATIC             Set to 'static' to declare the function static.  */
+
+#ifndef PRINTF_FETCHARGS
+# include <config.h>
+#endif
 
 /* Specification.  */
-#include "printf-args.h"
+#ifndef PRINTF_FETCHARGS
+# include "printf-args.h"
+#endif
 
 #ifdef STATIC
 STATIC
 #endif
 int
-printf_fetchargs (va_list args, arguments *a)
+PRINTF_FETCHARGS (va_list args, arguments *a)
 {
   size_t i;
   argument *ap;
@@ -131,6 +140,45 @@ printf_fetchargs (va_list args, arguments *a)
 	ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);
 	break;
 #endif
+#if ENABLE_UNISTDIO
+      /* The unistdio extensions.  */
+      case TYPE_U8_STRING:
+	ap->a.a_u8_string = va_arg (args, const uint8_t *);
+	/* A null pointer is an invalid argument for "%U", but in practice
+	   it occurs quite frequently in printf statements that produce
+	   debug output.  Use a fallback in this case.  */
+	if (ap->a.a_u8_string == NULL)
+	  {
+	    static const uint8_t u8_null_string[] =
+	      { '(', 'N', 'U', 'L', 'L', ')', 0 };
+	    ap->a.a_u8_string = u8_null_string;
+	  }
+	break;
+      case TYPE_U16_STRING:
+	ap->a.a_u16_string = va_arg (args, const uint16_t *);
+	/* A null pointer is an invalid argument for "%lU", but in practice
+	   it occurs quite frequently in printf statements that produce
+	   debug output.  Use a fallback in this case.  */
+	if (ap->a.a_u16_string == NULL)
+	  {
+	    static const uint16_t u16_null_string[] =
+	      { '(', 'N', 'U', 'L', 'L', ')', 0 };
+	    ap->a.a_u16_string = u16_null_string;
+	  }
+	break;
+      case TYPE_U32_STRING:
+	ap->a.a_u32_string = va_arg (args, const uint32_t *);
+	/* A null pointer is an invalid argument for "%llU", but in practice
+	   it occurs quite frequently in printf statements that produce
+	   debug output.  Use a fallback in this case.  */
+	if (ap->a.a_u32_string == NULL)
+	  {
+	    static const uint32_t u32_null_string[] =
+	      { '(', 'N', 'U', 'L', 'L', ')', 0 };
+	    ap->a.a_u32_string = u32_null_string;
+	  }
+	break;
+#endif
       default:
 	/* Unknown type.  */
 	return -1;