/* Error handler for noninteractive utilities
- Copyright (C) 1990-1998, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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
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 <http://www.gnu.org/licenses/>. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
-#ifdef HAVE_CONFIG_H
+#if !_LIBC
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
-#ifdef _LIBC
-# include <libintl.h>
-#else
+#if !_LIBC && ENABLE_NLS
# include "gettext.h"
+# define _(msgid) gettext (msgid)
#endif
#ifdef _LIBC
+# include <libintl.h>
+# include <stdbool.h>
+# include <stdint.h>
# include <wchar.h>
# define mbsrtowcs __mbsrtowcs
#endif
-#if !_LIBC
+#if USE_UNLOCKED_IO
# include "unlocked-io.h"
#endif
/* In the GNU C library, there is a predefined variable for this. */
# define program_name program_invocation_name
+# include <errno.h>
+# include <limits.h>
# include <libio/libioP.h>
/* In GNU libc we want do not want to use the common name `error' directly.
# undef putc
# define putc(c, fp) INTUSE(_IO_putc) (c, fp)
+# include <bits/libc-lock.h>
+
#else /* not _LIBC */
# if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P
# 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
#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
error_tail (int status, int errnum, const char *message, va_list args)
{
-#if HAVE_VPRINTF || _LIBC
-# if _LIBC
+#if _LIBC
if (_IO_fwide (stderr, 0) > 0)
{
-# define ALLOCA_LIMIT 2000
+# define ALLOCA_LIMIT 2000
size_t len = strlen (message) + 1;
wchar_t *wmessage = NULL;
mbstate_t st;
size_t res;
const char *tmp;
+ bool use_malloc = false;
- do
+ while (1)
{
- if (len < ALLOCA_LIMIT)
+ if (__libc_use_alloca (len * sizeof (wchar_t)))
wmessage = (wchar_t *) alloca (len * sizeof (wchar_t));
else
{
- if (wmessage != NULL && len / 2 < ALLOCA_LIMIT)
+ if (!use_malloc)
wmessage = NULL;
- wmessage = (wchar_t *) realloc (wmessage,
- len * sizeof (wchar_t));
-
- if (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;
+ 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;
}
- while ((res = mbsrtowcs (wmessage, &tmp, len, &st)) == len);
if (res == (size_t) -1)
- /* The string cannot be converted. */
- wmessage = (wchar_t *) L"???";
+ {
+ /* The string cannot be converted. */
+ if (use_malloc)
+ {
+ free (wmessage);
+ use_malloc = false;
+ }
+ wmessage = (wchar_t *) L"???";
+ }
__vfwprintf (stderr, wmessage, args);
+
+ if (use_malloc)
+ free (wmessage);
}
else
-# endif
- vfprintf (stderr, message, args);
-#else
- _doprnt (message, args, stderr);
#endif
+ vfprintf (stderr, message, args);
va_end (args);
++error_message_count;
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);
format string with optional args.
If ERRNUM is nonzero, print its corresponding system error message.
Exit with status STATUS if it is nonzero. */
-/* VARARGS */
void
error (int status, int errnum, const char *message, ...)
{
va_list args;
+#if defined _LIBC && defined __libc_ptf_call
+ /* We do not want this call to be cut short by a thread
+ cancellation. Therefore disable cancellation for now. */
+ int state = PTHREAD_CANCEL_ENABLE;
+ __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
+ 0);
+#endif
+
fflush (stdout);
#ifdef _LIBC
_IO_flockfile (stderr);
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);
#ifdef _LIBC
_IO_funlockfile (stderr);
+# ifdef __libc_ptf_call
+ __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
+# endif
#endif
}
\f
old_line_number = line_number;
}
+#if defined _LIBC && defined __libc_ptf_call
+ /* We do not want this call to be cut short by a thread
+ cancellation. Therefore disable cancellation for now. */
+ int state = PTHREAD_CANCEL_ENABLE;
+ __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state),
+ 0);
+#endif
+
fflush (stdout);
#ifdef _LIBC
_IO_flockfile (stderr);
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);
#ifdef _LIBC
_IO_funlockfile (stderr);
+# ifdef __libc_ptf_call
+ __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
+# endif
#endif
}
projects / gnulib.git / blobdiff