From a26353616e67507deb0ecd3d9020115e7f594948 Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 16 Aug 2001 17:51:43 +0000
Subject: Update.

2001-08-16  Ulrich Drepper  <drepper@redhat.com>

	* misc/err.c: Handle wide oriented stderr.
---
 misc/err.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 87 insertions(+), 14 deletions(-)

(limited to 'misc')

diff --git a/misc/err.c b/misc/err.c
index 4e1d43b2b9..dc7025c670 100644
--- a/misc/err.c
+++ b/misc/err.c
@@ -1,5 +1,5 @@
-/* err.c --- 4.4BSD utility functions for error messages.
-   Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
+/* 4.4BSD utility functions for error messages.
+   Copyright (C) 1995, 1996, 1998, 2001 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -25,6 +25,7 @@
 #include <stdio.h>
 
 #ifdef USE_IN_LIBIO
+# include <wchar.h>
 # define flockfile(s) _IO_flockfile (s)
 # define funlockfile(s) _IO_funlockfile (s)
 #endif
@@ -39,15 +40,72 @@ extern char *__progname;
   va_end (ap);								      \
 }
 
+#ifdef USE_IN_LIBIO
+static void
+convert_and_print (const char *format, __gnuc_va_list ap)
+{
+# define ALLOCA_LIMIT	2000
+  size_t len;
+  wchar_t *wformat = NULL;
+  mbstate_t st;
+  size_t res;
+  const char *tmp;
+
+  if (format == NULL)
+    return;
+
+  len = strlen (format) + 1;
+
+  do
+    {
+      if (len < ALLOCA_LIMIT)
+	wformat = (wchar_t *) alloca (len * sizeof (wchar_t));
+      else
+	{
+	  if (wformat != NULL && len / 2 < ALLOCA_LIMIT)
+	    wformat = NULL;
+
+	  wformat = (wchar_t *) realloc (wformat, len * sizeof (wchar_t));
+
+	  if (wformat == NULL)
+	    {
+	      fputws (L"out of memory\n", stderr);
+	      return;
+	    }
+	}
+
+      memset (&st, '\0', sizeof (st));
+      tmp =format;
+    }
+  while ((res = mbsrtowcs (wformat, &tmp, len, &st)) == len);
+
+  if (res == (size_t) -1)
+    /* The string cannot be converted.  */
+    wformat = (wchar_t *) L"???";
+
+  vfwprintf (stderr, wformat, ap);
+}
+#endif
+
 void
 vwarnx (const char *format, __gnuc_va_list ap)
 {
   flockfile (stderr);
-  if (__progname)
-    fprintf (stderr, "%s: ", __progname);
-  if (format)
-    vfprintf (stderr, format, ap);
-  putc_unlocked ('\n', stderr);
+#ifdef USE_IN_LIBIO
+  if (_IO_fwide (stderr, 0) > 0)
+    {
+      fwprintf (stderr, L"%s: ", __progname);
+      convert_and_print (format, ap);
+      putwc_unlocked (L'\n', stderr);
+    }
+  else
+#endif
+    {
+      fprintf (stderr, "%s: ", __progname);
+      if (format)
+	vfprintf (stderr, format, ap);
+      putc_unlocked ('\n', stderr);
+    }
   funlockfile (stderr);
 }
 
@@ -57,15 +115,30 @@ vwarn (const char *format, __gnuc_va_list ap)
   int error = errno;
 
   flockfile (stderr);
-  if (__progname)
-    fprintf (stderr, "%s: ", __progname);
-  if (format)
+#ifdef USE_IN_LIBIO
+  if (_IO_fwide (stderr, 0) > 0)
+    {
+      fwprintf (stderr, L"%s: ", __progname);
+      if (format)
+	{
+	  convert_and_print (format, ap);
+	  fputws_unlocked (L": ", stderr);
+	}
+      __set_errno (error);
+      fwprintf (stderr, L"%m\n");
+    }
+  else
+#endif
     {
-      vfprintf (stderr, format, ap);
-      fputs_unlocked (": ", stderr);
+      fprintf (stderr, "%s: ", __progname);
+      if (format)
+	{
+	  vfprintf (stderr, format, ap);
+	  fputs_unlocked (": ", stderr);
+	}
+      __set_errno (error);
+      fprintf (stderr, "%m\n");
     }
-  __set_errno (error);
-  fprintf (stderr, "%m\n");
   funlockfile (stderr);
 }
 
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