mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-20 17:51:16 +00:00
f9a06dc1b5
2004-04-20 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/shm_open.c (shm_unlink): Change EPERM into EACCES. 2004-04-20 Jakub Jelinek <jakub@redhat.com> * stdio-common/vfscanf.c (_IO_vfscanf): Revert last %% whitespace handling change. * stdio-common/tst-sscanf.c (int_tests): Adjust. * nis/nss-nis.c: Include stdlib.h. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Shut up a warning. * sysdeps/sparc/sparc64/memcmp.S (memcmp): Remove BP_SYM () from libc_hidden_builtin_def. 2004-04-20 Jim Meyering <jim@meyering.net> * misc/error.c (error_tail): Don't leak upon realloc failure. 2004-04-20 Martin Schwidefsky <schwidefsky@de.ibm.com> * sysdeps/unix/sysv/linux/dl-execstack.c (_dl_make_stack_executable): Use RETURN_ADDRESS instead of __builtin_return_address.
409 lines
9.5 KiB
C
409 lines
9.5 KiB
C
/* Error handler for noninteractive utilities
|
||
Copyright (C) 1990-1998, 2000-2003, 2004 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.
|
||
|
||
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.
|
||
|
||
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
|
||
Lesser General Public License for more details.
|
||
|
||
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>. */
|
||
|
||
#ifdef HAVE_CONFIG_H
|
||
# include <config.h>
|
||
#endif
|
||
|
||
#include <stdio.h>
|
||
#include <libintl.h>
|
||
#ifdef _LIBC
|
||
# include <wchar.h>
|
||
# define mbsrtowcs __mbsrtowcs
|
||
#endif
|
||
|
||
#if HAVE_VPRINTF || HAVE_DOPRNT || _LIBC
|
||
# if __STDC__
|
||
# include <stdarg.h>
|
||
# define VA_START(args, lastarg) va_start(args, lastarg)
|
||
# else
|
||
# include <varargs.h>
|
||
# define VA_START(args, lastarg) va_start(args)
|
||
# endif
|
||
#else
|
||
# define va_alist a1, a2, a3, a4, a5, a6, a7, a8
|
||
# define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
|
||
#endif
|
||
|
||
#if STDC_HEADERS || _LIBC
|
||
# include <stdlib.h>
|
||
# include <string.h>
|
||
#else
|
||
void exit ();
|
||
#endif
|
||
|
||
#include "error.h"
|
||
|
||
#ifndef _
|
||
# define _(String) String
|
||
#endif
|
||
|
||
/* 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. */
|
||
void (*error_print_progname) (
|
||
#if __STDC__ - 0
|
||
void
|
||
#endif
|
||
);
|
||
|
||
/* This variable is incremented each time `error' is called. */
|
||
unsigned int error_message_count;
|
||
|
||
#ifdef _LIBC
|
||
/* In the GNU C library, there is a predefined variable for this. */
|
||
|
||
# define program_name program_invocation_name
|
||
# include <errno.h>
|
||
# include <libio/libioP.h>
|
||
|
||
/* 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
|
||
|
||
# include <libio/iolibio.h>
|
||
# define fflush(s) INTUSE(_IO_fflush) (s)
|
||
# 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
|
||
# 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_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 (int errnum)
|
||
{
|
||
extern char *sys_errlist[];
|
||
extern int sys_nerr;
|
||
|
||
if (errnum > 0 && errnum <= sys_nerr)
|
||
return _(sys_errlist[errnum]);
|
||
return _("Unknown system error");
|
||
}
|
||
# 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
|
||
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
|
||
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;
|
||
|
||
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;
|
||
}
|
||
|
||
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
|
||
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__
|
||
error (int status, int errnum, const char *message, ...)
|
||
#else
|
||
error (status, errnum, message, va_alist)
|
||
int status;
|
||
int errnum;
|
||
char *message;
|
||
va_dcl
|
||
#endif
|
||
{
|
||
#ifdef VA_START
|
||
va_list args;
|
||
#endif
|
||
|
||
#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);
|
||
#endif
|
||
if (error_print_progname)
|
||
(*error_print_progname) ();
|
||
else
|
||
{
|
||
#if _LIBC
|
||
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);
|
||
error_tail (status, errnum, message, args);
|
||
#else
|
||
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
|
||
|
||
++error_message_count;
|
||
if (errnum)
|
||
print_errno_message (errnum);
|
||
putc ('\n', stderr);
|
||
fflush (stderr);
|
||
if (status)
|
||
exit (status);
|
||
#endif
|
||
|
||
#ifdef _LIBC
|
||
_IO_funlockfile (stderr);
|
||
# ifdef __libc_ptf_call
|
||
__libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
|
||
# endif
|
||
#endif
|
||
}
|
||
|
||
/* Sometimes we want to have at most one error per line. This
|
||
variable controls whether this mode is selected or not. */
|
||
int error_one_per_line;
|
||
|
||
void
|
||
#if defined VA_START && __STDC__
|
||
error_at_line (int status, int errnum, const char *file_name,
|
||
unsigned int line_number, const char *message, ...)
|
||
#else
|
||
error_at_line (status, errnum, file_name, line_number, message, va_alist)
|
||
int status;
|
||
int errnum;
|
||
const char *file_name;
|
||
unsigned int line_number;
|
||
char *message;
|
||
va_dcl
|
||
#endif
|
||
{
|
||
#ifdef VA_START
|
||
va_list args;
|
||
#endif
|
||
|
||
if (error_one_per_line)
|
||
{
|
||
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) == 0))
|
||
/* Simply return and print nothing. */
|
||
return;
|
||
|
||
old_file_name = file_name;
|
||
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);
|
||
#endif
|
||
if (error_print_progname)
|
||
(*error_print_progname) ();
|
||
else
|
||
{
|
||
#if _LIBC
|
||
if (_IO_fwide (stderr, 0) > 0)
|
||
__fwprintf (stderr, L"%s: ", program_name);
|
||
else
|
||
#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
|
||
#endif
|
||
fprintf (stderr, "%s:%d: ", file_name, line_number);
|
||
}
|
||
|
||
#ifdef VA_START
|
||
VA_START (args, message);
|
||
error_tail (status, errnum, message, args);
|
||
#else
|
||
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
|
||
|
||
++error_message_count;
|
||
if (errnum)
|
||
print_errno_message (errnum);
|
||
putc ('\n', stderr);
|
||
fflush (stderr);
|
||
if (status)
|
||
exit (status);
|
||
#endif
|
||
|
||
#ifdef _LIBC
|
||
_IO_funlockfile (stderr);
|
||
# ifdef __libc_ptf_call
|
||
__libc_ptf_call (pthread_setcancelstate, (state, NULL), 0);
|
||
# 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
|