-/* error.c -- error handler for noninteractive utilities
- Copyright (C) 1990, 91, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
+/* Error handler for noninteractive utilities
+ Copyright (C) 1990-1998, 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library. Its master source is NOT part of
+ the C library, however. The master source lives in /gd/gnu/lib.
- 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 GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ The GNU C Library 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.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser 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 Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
+#if HAVE_LIBINTL_H
+# include <libintl.h>
+#endif
+#ifdef _LIBC
+# include <wchar.h>
+# define mbsrtowcs __mbsrtowcs
+#endif
#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC
# if __STDC__
void exit ();
#endif
+#include "error.h"
+#include "unlocked-io.h"
+
#ifndef _
# define _(String) String
#endif
-/* Get prototypes for the functions defined here. */
-#include <error.h>
-
/* If NULL, error will flush stdout, then print on stderr the program
name, a colon and a space. Otherwise, error will call this
function without parameters instead. */
# define program_name program_invocation_name
# include <errno.h>
-#else /* not _LIBC */
+/* In GNU libc we want do not want to use the common name `error' directly.
+ Instead make it a weak alias. */
+extern void __error (int status, int errnum, const char *message, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+extern void __error_at_line (int status, int errnum, const char *file_name,
+ unsigned int line_number, const char *message,
+ ...)
+ __attribute__ ((__format__ (__printf__, 5, 6)));;
+# define error __error
+# define error_at_line __error_at_line
+
+# ifdef USE_IN_LIBIO
+# include <libio/iolibio.h>
+# define fflush(s) _IO_fflush (s)
+# endif
+
+#else /* not _LIBC */
+
+# if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P
+# ifndef HAVE_DECL_STRERROR_R
+"this configure-time declaration test was not run"
+# endif
+char *strerror_r ();
+# 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
-# ifndef strerror /* On some systems, strerror is a macro */
-char *strerror ();
-# endif
+# if HAVE_STRERROR_R || defined strerror_r
+# define __strerror_r strerror_r
# else
+# if HAVE_STRERROR
+# ifndef HAVE_DECL_STRERROR
+"this configure-time declaration test was not run"
+# endif
+# if !HAVE_DECL_STRERROR
+char *strerror ();
+# endif
+# else
static char *
-private_strerror (errnum)
- int errnum;
+private_strerror (int errnum)
{
extern char *sys_errlist[];
extern int sys_nerr;
if (errnum > 0 && errnum <= sys_nerr)
- return sys_errlist[errnum];
+ return _(sys_errlist[errnum]);
return _("Unknown system error");
}
-# define strerror private_strerror
-# endif /* HAVE_STRERROR */
+# define strerror private_strerror
+# endif /* HAVE_STRERROR */
+# endif /* HAVE_STRERROR_R || defined strerror_r */
#endif /* not _LIBC */
+static void
+print_errno_message (int errnum)
+{
+ char const *s;
+
+#if defined HAVE_STRERROR_R || _LIBC
+ char errbuf[1024];
+# if STRERROR_R_CHAR_P || _LIBC
+ s = __strerror_r (errnum, errbuf, sizeof errbuf);
+# else
+ if (__strerror_r (errnum, errbuf, sizeof errbuf) == 0)
+ s = errbuf;
+ else
+ s = 0;
+# endif
+#else
+ s = strerror (errnum);
+#endif
+
+#if !_LIBC
+ if (! s)
+ s = _("Unknown system error");
+#endif
+
+#if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ {
+ __fwprintf (stderr, L": %s", s);
+ return;
+ }
+#endif
+
+ fprintf (stderr, ": %s", s);
+}
+
+#ifdef VA_START
+static void
+error_tail (int status, int errnum, const char *message, va_list args)
+{
+# if HAVE_VPRINTF || _LIBC
+# if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ {
+# define ALLOCA_LIMIT 2000
+ size_t len = strlen (message) + 1;
+ wchar_t *wmessage = NULL;
+ mbstate_t st;
+ size_t res;
+ const char *tmp;
+
+ do
+ {
+ if (len < ALLOCA_LIMIT)
+ wmessage = (wchar_t *) alloca (len * sizeof (wchar_t));
+ else
+ {
+ if (wmessage != NULL && len / 2 < ALLOCA_LIMIT)
+ wmessage = NULL;
+
+ wmessage = (wchar_t *) realloc (wmessage,
+ len * sizeof (wchar_t));
+
+ if (wmessage == NULL)
+ {
+ fputws_unlocked (L"out of memory\n", stderr);
+ return;
+ }
+ }
+
+ memset (&st, '\0', sizeof (st));
+ tmp =message;
+ }
+ while ((res = mbsrtowcs (wmessage, &tmp, len, &st)) == len);
+
+ if (res == (size_t) -1)
+ /* The string cannot be converted. */
+ wmessage = (wchar_t *) L"???";
+
+ __vfwprintf (stderr, wmessage, args);
+ }
+ else
+# endif
+ vfprintf (stderr, message, args);
+# else
+ _doprnt (message, args, stderr);
+# endif
+ va_end (args);
+
+ ++error_message_count;
+ if (errnum)
+ print_errno_message (errnum);
+# if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ putwc (L'\n', stderr);
+ else
+# endif
+ putc ('\n', stderr);
+ fflush (stderr);
+ if (status)
+ exit (status);
+}
+#endif
+
+
/* Print the program name and error message MESSAGE, which is a printf-style
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
-#if defined(VA_START) && __STDC__
+#if defined VA_START && __STDC__
error (int status, int errnum, const char *message, ...)
#else
error (status, errnum, message, va_alist)
va_list args;
#endif
+ fflush (stdout);
+#ifdef _LIBC
+# ifdef USE_IN_LIBIO
+ _IO_flockfile (stderr);
+# else
+ __flockfile (stderr);
+# endif
+#endif
if (error_print_progname)
(*error_print_progname) ();
else
{
- fflush (stdout);
- fprintf (stderr, "%s: ", program_name);
+#if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s: ", program_name);
+ else
+#endif
+ fprintf (stderr, "%s: ", program_name);
}
#ifdef VA_START
VA_START (args, message);
-# if HAVE_VPRINTF || _LIBC
- vfprintf (stderr, message, args);
-# else
- _doprnt (message, args, stderr);
-# endif
- va_end (args);
+ error_tail (status, errnum, message, args);
#else
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
++error_message_count;
if (errnum)
- fprintf (stderr, ": %s", strerror (errnum));
+ print_errno_message (errnum);
putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
+#endif
+
+#ifdef _LIBC
+# ifdef USE_IN_LIBIO
+ _IO_funlockfile (stderr);
+# else
+ __funlockfile (stderr);
+# endif
+#endif
}
\f
/* Sometimes we want to have at most one error per line. This
int error_one_per_line;
void
-#if defined(VA_START) && __STDC__
+#if defined VA_START && __STDC__
error_at_line (int status, int errnum, const char *file_name,
unsigned int line_number, const char *message, ...)
#else
static const char *old_file_name;
static unsigned int old_line_number;
- if (old_line_number == line_number &&
- (file_name == old_file_name || !strcmp (old_file_name, file_name)))
+ if (old_line_number == line_number
+ && (file_name == old_file_name
+ || strcmp (old_file_name, file_name) == 0))
/* Simply return and print nothing. */
return;
old_line_number = line_number;
}
+ fflush (stdout);
+#ifdef _LIBC
+# ifdef USE_IN_LIBIO
+ _IO_flockfile (stderr);
+# else
+ __flockfile (stderr);
+# endif
+#endif
if (error_print_progname)
(*error_print_progname) ();
else
{
- fflush (stdout);
- fprintf (stderr, "%s:", program_name);
+#if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s: ", program_name);
+ else
+#endif
+ fprintf (stderr, "%s:", program_name);
}
if (file_name != NULL)
- fprintf (stderr, "%s:%d: ", file_name, line_number);
+ {
+#if _LIBC && USE_IN_LIBIO
+ if (_IO_fwide (stderr, 0) > 0)
+ __fwprintf (stderr, L"%s:%d: ", file_name, line_number);
+ else
+#endif
+ fprintf (stderr, "%s:%d: ", file_name, line_number);
+ }
#ifdef VA_START
VA_START (args, message);
-# if HAVE_VPRINTF || _LIBC
- vfprintf (stderr, message, args);
-# else
- _doprnt (message, args, stderr);
-# endif
- va_end (args);
+ error_tail (status, errnum, message, args);
#else
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
-#endif
++error_message_count;
if (errnum)
- fprintf (stderr, ": %s", strerror (errnum));
+ print_errno_message (errnum);
putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
+#endif
+
+#ifdef _LIBC
+# ifdef USE_IN_LIBIO
+ _IO_funlockfile (stderr);
+# else
+ __funlockfile (stderr);
+# endif
+#endif
}
+
+#ifdef _LIBC
+/* Make the weak alias. */
+# undef error
+# undef error_at_line
+weak_alias (__error, error)
+weak_alias (__error_at_line, error_at_line)
+#endif
projects / gnulib.git / blobdiff