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Diffstat (limited to 'lib/error.c')
-rw-r--r-- | lib/error.c | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/lib/error.c b/lib/error.c deleted file mode 100644 index 45698be8..00000000 --- a/lib/error.c +++ /dev/null @@ -1,304 +0,0 @@ -/* 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. - - 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. - - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include "error.h" - -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#if !_LIBC && ENABLE_NLS -# include "gettext.h" -#endif - -#ifdef _LIBC -# include <wchar.h> -# define mbsrtowcs __mbsrtowcs -#endif - -#if USE_UNLOCKED_IO -# include "unlocked-io.h" -#endif - -#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) (void); - -/* 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 - -# 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 /* not _LIBC */ - -static void -print_errno_message (int errnum) -{ - char const *s = NULL; - -#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; -# endif -#endif - -#if !_LIBC - if (! s && ! (s = strerror (errnum))) - s = _("Unknown system error"); -#endif - -#if _LIBC - if (_IO_fwide (stderr, 0) > 0) - { - __fwprintf (stderr, L": %s", s); - return; - } -#endif - - fprintf (stderr, ": %s", s); -} - -static void -error_tail (int status, int errnum, const char *message, va_list args) -{ -#if _LIBC - if (_IO_fwide (stderr, 0) > 0) - { -# define ALLOCA_LIMIT 2000 - size_t len = strlen (message) + 1; - const wchar_t *wmessage = L"out of memory"; - wchar_t *wbuf = (len < ALLOCA_LIMIT - ? alloca (len * sizeof *wbuf) - : len <= SIZE_MAX / sizeof *wbuf - ? malloc (len * sizeof *wbuf) - : NULL); - - if (wbuf) - { - size_t res; - mbstate_t st; - const char *tmp = message; - memset (&st, '\0', sizeof (st)); - res = mbsrtowcs (wbuf, &tmp, len, &st); - wmessage = res == (size_t) -1 ? L"???" : wbuf; - } - - __vfwprintf (stderr, wmessage, args); - if (! (len < ALLOCA_LIMIT)) - free (wbuf); - } - else -#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 -#endif - putc ('\n', stderr); - fflush (stderr); - if (status) - exit (status); -} - - -/* 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. */ -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); -#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); - } - - 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 -} - -/* 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 -error_at_line (int status, int errnum, const char *file_name, - unsigned int line_number, const char *message, ...) -{ - va_list args; - - 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); - } - - 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 -} - -#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 |