X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ferror.c;h=3177bd5d2cbc3802e3590e40732ca6c376762a31;hb=4cd8485e904c1a98470eb548fe6ac0f04e343c4e;hp=1c74a14febc0311b6e913b45ba005af904c22070;hpb=cd6df927ef3c7d7146ecccc967e522a373f708bc;p=gnulib.git
diff --git a/lib/error.c b/lib/error.c
index 1c74a14fe..3177bd5d2 100644
--- a/lib/error.c
+++ b/lib/error.c
@@ -1,24 +1,23 @@
/* Error handler for noninteractive utilities
- Copyright (C) 1990-1998, 2000-2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1990-1998, 2000-2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
/* Written by David MacKenzie . */
-#ifdef HAVE_CONFIG_H
+#if !_LIBC
# include
#endif
@@ -29,18 +28,20 @@
#include
#include
-#ifdef _LIBC
-# include
-#else
+#if !_LIBC && ENABLE_NLS
# include "gettext.h"
+# define _(msgid) gettext (msgid)
#endif
#ifdef _LIBC
+# include
+# include
+# include
# include
# define mbsrtowcs __mbsrtowcs
#endif
-#if !_LIBC
+#if USE_UNLOCKED_IO
# include "unlocked-io.h"
#endif
@@ -61,6 +62,7 @@ unsigned int error_message_count;
# define program_name program_invocation_name
# include
+# include
# include
/* In GNU libc we want do not want to use the common name `error' directly.
@@ -90,17 +92,13 @@ extern void __error_at_line (int status, int errnum, const char *file_name,
char *strerror_r ();
# endif
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t) -1)
-#endif
-
/* The calling program should define program_name and set it to the
name of the executing program. */
extern char *program_name;
# if HAVE_STRERROR_R || defined strerror_r
# define __strerror_r strerror_r
-# endif
+# endif /* HAVE_STRERROR_R || defined strerror_r */
#endif /* not _LIBC */
static void
@@ -128,14 +126,10 @@ print_errno_message (int errnum)
#endif
#if _LIBC
- if (_IO_fwide (stderr, 0) > 0)
- {
- __fwprintf (stderr, L": %s", s);
- return;
- }
-#endif
-
+ __fxprintf (NULL, ": %s", s);
+#else
fprintf (stderr, ": %s", s);
+#endif
}
static void
@@ -146,27 +140,65 @@ error_tail (int status, int errnum, const char *message, va_list args)
{
# define ALLOCA_LIMIT 2000
size_t len = strlen (message) + 1;
- const wchar_t *wmessage = L"out of memory";
+ wchar_t *wmessage = NULL;
mbstate_t st;
size_t res;
const char *tmp;
- wchar_t *wbuf = (len < ALLOCA_LIMIT
- ? (void *) alloca (len * sizeof *wbuf)
- : len <= SIZE_MAX / sizeof *wbuf
- ? malloc (len * sizeof *wbuf)
- : NULL);
+ bool use_malloc = false;
- if (wbuf)
+ while (1)
{
+ if (__libc_use_alloca (len * sizeof (wchar_t)))
+ wmessage = (wchar_t *) alloca (len * sizeof (wchar_t));
+ else
+ {
+ if (!use_malloc)
+ wmessage = NULL;
+
+ wchar_t *p = (wchar_t *) realloc (wmessage,
+ len * sizeof (wchar_t));
+ if (p == NULL)
+ {
+ free (wmessage);
+ fputws_unlocked (L"out of memory\n", stderr);
+ return;
+ }
+ wmessage = p;
+ use_malloc = true;
+ }
+
memset (&st, '\0', sizeof (st));
- tmp =message;
- res = mbsrtowcs (wbuf, &tmp, len, &st);
- wmessage = res == (size_t) -1 ? L"???" : wbuf;
+ tmp = message;
+
+ res = mbsrtowcs (wmessage, &tmp, len, &st);
+ if (res != len)
+ break;
+
+ if (__builtin_expect (len >= SIZE_MAX / 2, 0))
+ {
+ /* This really should not happen if everything is fine. */
+ res = (size_t) -1;
+ break;
+ }
+
+ len *= 2;
+ }
+
+ if (res == (size_t) -1)
+ {
+ /* The string cannot be converted. */
+ if (use_malloc)
+ {
+ free (wmessage);
+ use_malloc = false;
+ }
+ wmessage = (wchar_t *) L"???";
}
__vfwprintf (stderr, wmessage, args);
- if (! (len < ALLOCA_LIMIT))
- free (wbuf);
+
+ if (use_malloc)
+ free (wmessage);
}
else
#endif
@@ -177,11 +209,10 @@ error_tail (int status, int errnum, const char *message, va_list args)
if (errnum)
print_errno_message (errnum);
#if _LIBC
- if (_IO_fwide (stderr, 0) > 0)
- putwc (L'\n', stderr);
- else
+ __fxprintf (NULL, "\n");
+#else
+ putc ('\n', stderr);
#endif
- putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
@@ -214,11 +245,10 @@ error (int status, int errnum, const char *message, ...)
else
{
#if _LIBC
- if (_IO_fwide (stderr, 0) > 0)
- __fwprintf (stderr, L"%s: ", program_name);
- else
+ __fxprintf (NULL, "%s: ", program_name);
+#else
+ fprintf (stderr, "%s: ", program_name);
#endif
- fprintf (stderr, "%s: ", program_name);
}
va_start (args, message);
@@ -274,22 +304,19 @@ error_at_line (int status, int errnum, const char *file_name,
else
{
#if _LIBC
- if (_IO_fwide (stderr, 0) > 0)
- __fwprintf (stderr, L"%s: ", program_name);
- else
+ __fxprintf (NULL, "%s:", program_name);
+#else
+ fprintf (stderr, "%s:", program_name);
#endif
- fprintf (stderr, "%s:", program_name);
}
- if (file_name != NULL)
- {
#if _LIBC
- if (_IO_fwide (stderr, 0) > 0)
- __fwprintf (stderr, L"%s:%d: ", file_name, line_number);
- else
+ __fxprintf (NULL, file_name != NULL ? "%s:%d: " : " ",
+ file_name, line_number);
+#else
+ fprintf (stderr, file_name != NULL ? "%s:%d: " : " ",
+ file_name, line_number);
#endif
- fprintf (stderr, "%s:%d: ", file_name, line_number);
- }
va_start (args, message);
error_tail (status, errnum, message, args);