X-Git-Url: http://git.madism.org/?a=blobdiff_plain;f=intl%2Fprintf-args.c;h=47b73d2c1dee4d8676d26a7b2063cbb39bb14330;hb=d6390d86146aebd0e2eacb4674a49954514edaff;hp=f9759014706c582a7b6b4f77e42adff3dac39281;hpb=47a98766051a91ceb5e60f7ff5eedc40ea161d61;p=apps%2Fmadmutt.git

diff --git a/intl/printf-args.c b/intl/printf-args.c
index f975901..47b73d2 100644
--- a/intl/printf-args.c
+++ b/intl/printf-args.c
@@ -1,5 +1,5 @@
 /* Decomposed printf argument list.
-   Copyright (C) 1999, 2002-2003 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2002-2003, 2005-2006 Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published
@@ -80,15 +80,40 @@ printf_fetchargs (va_list args, arguments *a)
 	break;
 #ifdef HAVE_WINT_T
       case TYPE_WIDE_CHAR:
-	ap->a.a_wide_char = va_arg (args, wint_t);
+	/* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by
+	   default argument promotions", this is not the case in mingw32,
+	   where wint_t is 'unsigned short'.  */
+	ap->a.a_wide_char =
+	  (sizeof (wint_t) < sizeof (int)
+	   ? va_arg (args, int)
+	   : va_arg (args, wint_t));
 	break;
 #endif
       case TYPE_STRING:
 	ap->a.a_string = va_arg (args, const char *);
+	/* A null pointer is an invalid argument for "%s", but in practice
+	   it occurs quite frequently in printf statements that produce
+	   debug output.  Use a fallback in this case.  */
+	if (ap->a.a_string == NULL)
+	  ap->a.a_string = "(NULL)";
 	break;
 #ifdef HAVE_WCHAR_T
       case TYPE_WIDE_STRING:
 	ap->a.a_wide_string = va_arg (args, const wchar_t *);
+	/* A null pointer is an invalid argument for "%ls", but in practice
+	   it occurs quite frequently in printf statements that produce
+	   debug output.  Use a fallback in this case.  */
+	if (ap->a.a_wide_string == NULL)
+	  {
+	    static const wchar_t wide_null_string[] =
+	      {
+		(wchar_t)'(',
+		(wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L',
+		(wchar_t)')',
+		(wchar_t)0
+	      };
+	    ap->a.a_wide_string = wide_null_string;
+	  }
 	break;
 #endif
       case TYPE_POINTER: