1cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* Error handler for noninteractive utilities 205436638acc7c010349a69c3395f1a57c642dc62Ying Wang Copyright (C) 1990-1998, 2000-2007, 2009-2012 Free Software Foundation, Inc. 3cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project This file is part of the GNU C Library. 4cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 505436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is free software: you can redistribute it and/or modify 6cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project it under the terms of the GNU General Public License as published by 705436638acc7c010349a69c3395f1a57c642dc62Ying Wang the Free Software Foundation; either version 3 of the License, or 805436638acc7c010349a69c3395f1a57c642dc62Ying Wang (at your option) any later version. 9cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 10cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project This program is distributed in the hope that it will be useful, 11cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project but WITHOUT ANY WARRANTY; without even the implied warranty of 12cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project GNU General Public License for more details. 14cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 1505436638acc7c010349a69c3395f1a57c642dc62Ying Wang You should have received a copy of the GNU General Public License 1605436638acc7c010349a69c3395f1a57c642dc62Ying Wang along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 18cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */ 19cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 2005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !_LIBC 21cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <config.h> 22cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 23cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 24cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#include "error.h" 25cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 26cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#include <stdarg.h> 27cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#include <stdio.h> 28cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#include <stdlib.h> 29cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#include <string.h> 30cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 31cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if !_LIBC && ENABLE_NLS 32cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include "gettext.h" 3305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _(msgid) gettext (msgid) 34cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 35cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 36cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 3705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <libintl.h> 3805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <stdbool.h> 3905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <stdint.h> 40cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <wchar.h> 41cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define mbsrtowcs __mbsrtowcs 42cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 43cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 44cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if USE_UNLOCKED_IO 45cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include "unlocked-io.h" 46cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 47cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 48cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifndef _ 49cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define _(String) String 50cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 51cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 52cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* If NULL, error will flush stdout, then print on stderr the program 53cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project name, a colon and a space. Otherwise, error will call this 54cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project function without parameters instead. */ 55cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectvoid (*error_print_progname) (void); 56cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 5705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* This variable is incremented each time 'error' is called. */ 58cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectunsigned int error_message_count; 59cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 60cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 61cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* In the GNU C library, there is a predefined variable for this. */ 62cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 63cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define program_name program_invocation_name 64cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <errno.h> 6505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <limits.h> 66cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <libio/libioP.h> 67cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 6805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* In GNU libc we want do not want to use the common name 'error' directly. 69cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project Instead make it a weak alias. */ 70cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectextern void __error (int status, int errnum, const char *message, ...) 71cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __attribute__ ((__format__ (__printf__, 3, 4))); 72cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectextern void __error_at_line (int status, int errnum, const char *file_name, 7305436638acc7c010349a69c3395f1a57c642dc62Ying Wang unsigned int line_number, const char *message, 7405436638acc7c010349a69c3395f1a57c642dc62Ying Wang ...) 75cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __attribute__ ((__format__ (__printf__, 5, 6)));; 76cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define error __error 77cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define error_at_line __error_at_line 78cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 79cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <libio/iolibio.h> 80cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define fflush(s) INTUSE(_IO_fflush) (s) 81cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# undef putc 82cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define putc(c, fp) INTUSE(_IO_putc) (c, fp) 83cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 84cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# include <bits/libc-lock.h> 85cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 86cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#else /* not _LIBC */ 87cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 8805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <fcntl.h> 8905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <unistd.h> 9005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 9105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ 9205436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get declarations of the native Windows API functions. */ 9305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define WIN32_LEAN_AND_MEAN 9405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <windows.h> 9505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Get _get_osfhandle. */ 9605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include "msvc-nothrow.h" 9705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 9805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 9905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The gnulib override of fcntl is not needed in this file. */ 10005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef fcntl 10105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !HAVE_DECL_STRERROR_R 103cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# ifndef HAVE_DECL_STRERROR_R 104cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project"this configure-time declaration test was not run" 105cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 10605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if STRERROR_R_CHAR_P 107cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectchar *strerror_r (); 10805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 10905436638acc7c010349a69c3395f1a57c642dc62Ying Wangint strerror_r (); 11005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 111cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 112cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 113cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* The calling program should define program_name and set it to the 114cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project name of the executing program. */ 115cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectextern char *program_name; 116cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 117cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# if HAVE_STRERROR_R || defined strerror_r 118cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define __strerror_r strerror_r 11905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif /* HAVE_STRERROR_R || defined strerror_r */ 12005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif /* not _LIBC */ 12105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 12205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !_LIBC 12305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return non-zero if FD is open. */ 12405436638acc7c010349a69c3395f1a57c642dc62Ying Wangstatic int 12505436638acc7c010349a69c3395f1a57c642dc62Ying Wangis_open (int fd) 12605436638acc7c010349a69c3395f1a57c642dc62Ying Wang{ 12705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ 12805436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* On native Windows: The initial state of unassigned standard file 12905436638acc7c010349a69c3395f1a57c642dc62Ying Wang descriptors is that they are open but point to an INVALID_HANDLE_VALUE. 13005436638acc7c010349a69c3395f1a57c642dc62Ying Wang There is no fcntl, and the gnulib replacement fcntl does not support 13105436638acc7c010349a69c3395f1a57c642dc62Ying Wang F_GETFL. */ 13205436638acc7c010349a69c3395f1a57c642dc62Ying Wang return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE; 13305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 13405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifndef F_GETFL 13505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# error Please port fcntl to your platform 13605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 13705436638acc7c010349a69c3395f1a57c642dc62Ying Wang return 0 <= fcntl (fd, F_GETFL); 13805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 13905436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 14005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 14105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14205436638acc7c010349a69c3395f1a57c642dc62Ying Wangstatic void 14305436638acc7c010349a69c3395f1a57c642dc62Ying Wangflush_stdout (void) 14405436638acc7c010349a69c3395f1a57c642dc62Ying Wang{ 14505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if !_LIBC 14605436638acc7c010349a69c3395f1a57c642dc62Ying Wang int stdout_fd; 14705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if GNULIB_FREOPEN_SAFER 14905436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* Use of gnulib's freopen-safer module normally ensures that 15005436638acc7c010349a69c3395f1a57c642dc62Ying Wang fileno (stdout) == 1 15105436638acc7c010349a69c3395f1a57c642dc62Ying Wang whenever stdout is open. */ 15205436638acc7c010349a69c3395f1a57c642dc62Ying Wang stdout_fd = STDOUT_FILENO; 15305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 15405436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* POSIX states that fileno (stdout) after fclose is unspecified. But in 15505436638acc7c010349a69c3395f1a57c642dc62Ying Wang practice it is not a problem, because stdout is statically allocated and 15605436638acc7c010349a69c3395f1a57c642dc62Ying Wang the fd of a FILE stream is stored as a field in its allocated memory. */ 15705436638acc7c010349a69c3395f1a57c642dc62Ying Wang stdout_fd = fileno (stdout); 158cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 15905436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* POSIX states that fflush (stdout) after fclose is unspecified; it 16005436638acc7c010349a69c3395f1a57c642dc62Ying Wang is safe in glibc, but not on all other platforms. fflush (NULL) 16105436638acc7c010349a69c3395f1a57c642dc62Ying Wang is always defined, but too draconian. */ 16205436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (0 <= stdout_fd && is_open (stdout_fd)) 16305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 16405436638acc7c010349a69c3395f1a57c642dc62Ying Wang fflush (stdout); 16505436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 166cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 167cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectstatic void 168cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectprint_errno_message (int errnum) 169cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project{ 17005436638acc7c010349a69c3395f1a57c642dc62Ying Wang char const *s; 171cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 172cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if defined HAVE_STRERROR_R || _LIBC 173cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project char errbuf[1024]; 174cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# if STRERROR_R_CHAR_P || _LIBC 175cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project s = __strerror_r (errnum, errbuf, sizeof errbuf); 176cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# else 177cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (__strerror_r (errnum, errbuf, sizeof errbuf) == 0) 178cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project s = errbuf; 17905436638acc7c010349a69c3395f1a57c642dc62Ying Wang else 18005436638acc7c010349a69c3395f1a57c642dc62Ying Wang s = 0; 181cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 18205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 18305436638acc7c010349a69c3395f1a57c642dc62Ying Wang s = strerror (errnum); 184cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 185cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 186cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if !_LIBC 18705436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (! s) 188cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project s = _("Unknown system error"); 189cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 190cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 191cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 19205436638acc7c010349a69c3395f1a57c642dc62Ying Wang __fxprintf (NULL, ": %s", s); 19305436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 194cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project fprintf (stderr, ": %s", s); 19505436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 196cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project} 197cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 198cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectstatic void 199cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projecterror_tail (int status, int errnum, const char *message, va_list args) 200cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project{ 201cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 202cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (_IO_fwide (stderr, 0) > 0) 203cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project { 204cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# define ALLOCA_LIMIT 2000 205cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project size_t len = strlen (message) + 1; 20605436638acc7c010349a69c3395f1a57c642dc62Ying Wang wchar_t *wmessage = NULL; 20705436638acc7c010349a69c3395f1a57c642dc62Ying Wang mbstate_t st; 20805436638acc7c010349a69c3395f1a57c642dc62Ying Wang size_t res; 20905436638acc7c010349a69c3395f1a57c642dc62Ying Wang const char *tmp; 21005436638acc7c010349a69c3395f1a57c642dc62Ying Wang bool use_malloc = false; 21105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 21205436638acc7c010349a69c3395f1a57c642dc62Ying Wang while (1) 21305436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 21405436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (__libc_use_alloca (len * sizeof (wchar_t))) 21505436638acc7c010349a69c3395f1a57c642dc62Ying Wang wmessage = (wchar_t *) alloca (len * sizeof (wchar_t)); 21605436638acc7c010349a69c3395f1a57c642dc62Ying Wang else 21705436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 21805436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (!use_malloc) 21905436638acc7c010349a69c3395f1a57c642dc62Ying Wang wmessage = NULL; 22005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 22105436638acc7c010349a69c3395f1a57c642dc62Ying Wang wchar_t *p = (wchar_t *) realloc (wmessage, 22205436638acc7c010349a69c3395f1a57c642dc62Ying Wang len * sizeof (wchar_t)); 22305436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (p == NULL) 22405436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 22505436638acc7c010349a69c3395f1a57c642dc62Ying Wang free (wmessage); 22605436638acc7c010349a69c3395f1a57c642dc62Ying Wang fputws_unlocked (L"out of memory\n", stderr); 22705436638acc7c010349a69c3395f1a57c642dc62Ying Wang return; 22805436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 22905436638acc7c010349a69c3395f1a57c642dc62Ying Wang wmessage = p; 23005436638acc7c010349a69c3395f1a57c642dc62Ying Wang use_malloc = true; 23105436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 23205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 23305436638acc7c010349a69c3395f1a57c642dc62Ying Wang memset (&st, '\0', sizeof (st)); 23405436638acc7c010349a69c3395f1a57c642dc62Ying Wang tmp = message; 23505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 23605436638acc7c010349a69c3395f1a57c642dc62Ying Wang res = mbsrtowcs (wmessage, &tmp, len, &st); 23705436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (res != len) 23805436638acc7c010349a69c3395f1a57c642dc62Ying Wang break; 23905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 24005436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (__builtin_expect (len >= SIZE_MAX / 2, 0)) 24105436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 24205436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* This really should not happen if everything is fine. */ 24305436638acc7c010349a69c3395f1a57c642dc62Ying Wang res = (size_t) -1; 24405436638acc7c010349a69c3395f1a57c642dc62Ying Wang break; 24505436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 24605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 24705436638acc7c010349a69c3395f1a57c642dc62Ying Wang len *= 2; 24805436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 24905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 25005436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (res == (size_t) -1) 25105436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 25205436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* The string cannot be converted. */ 25305436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (use_malloc) 25405436638acc7c010349a69c3395f1a57c642dc62Ying Wang { 25505436638acc7c010349a69c3395f1a57c642dc62Ying Wang free (wmessage); 25605436638acc7c010349a69c3395f1a57c642dc62Ying Wang use_malloc = false; 25705436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 25805436638acc7c010349a69c3395f1a57c642dc62Ying Wang wmessage = (wchar_t *) L"???"; 25905436638acc7c010349a69c3395f1a57c642dc62Ying Wang } 260cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 261cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __vfwprintf (stderr, wmessage, args); 26205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 26305436638acc7c010349a69c3395f1a57c642dc62Ying Wang if (use_malloc) 26405436638acc7c010349a69c3395f1a57c642dc62Ying Wang free (wmessage); 265cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project } 266cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project else 267cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 268cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project vfprintf (stderr, message, args); 269cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project va_end (args); 270cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 271cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project ++error_message_count; 272cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (errnum) 273cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project print_errno_message (errnum); 274cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 27505436638acc7c010349a69c3395f1a57c642dc62Ying Wang __fxprintf (NULL, "\n"); 27605436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 27705436638acc7c010349a69c3395f1a57c642dc62Ying Wang putc ('\n', stderr); 278cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 279cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project fflush (stderr); 280cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (status) 281cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project exit (status); 282cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project} 283cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 284cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 285cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* Print the program name and error message MESSAGE, which is a printf-style 286cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project format string with optional args. 287cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project If ERRNUM is nonzero, print its corresponding system error message. 288cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project Exit with status STATUS if it is nonzero. */ 289cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectvoid 290cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projecterror (int status, int errnum, const char *message, ...) 291cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project{ 292cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project va_list args; 293cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 294cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if defined _LIBC && defined __libc_ptf_call 295cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project /* We do not want this call to be cut short by a thread 296cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project cancellation. Therefore disable cancellation for now. */ 297cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project int state = PTHREAD_CANCEL_ENABLE; 298cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), 29905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 0); 300cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 301cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 30205436638acc7c010349a69c3395f1a57c642dc62Ying Wang flush_stdout (); 303cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 304cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project _IO_flockfile (stderr); 305cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 306cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (error_print_progname) 307cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project (*error_print_progname) (); 308cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project else 309cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project { 310cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 31105436638acc7c010349a69c3395f1a57c642dc62Ying Wang __fxprintf (NULL, "%s: ", program_name); 31205436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 31305436638acc7c010349a69c3395f1a57c642dc62Ying Wang fprintf (stderr, "%s: ", program_name); 314cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 315cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project } 316cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 317cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project va_start (args, message); 318cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project error_tail (status, errnum, message, args); 319cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 320cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 321cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project _IO_funlockfile (stderr); 322cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# ifdef __libc_ptf_call 323cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0); 324cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 325cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 326cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project} 327cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 328cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* Sometimes we want to have at most one error per line. This 329cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project variable controls whether this mode is selected or not. */ 330cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectint error_one_per_line; 331cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 332cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectvoid 333cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projecterror_at_line (int status, int errnum, const char *file_name, 33405436638acc7c010349a69c3395f1a57c642dc62Ying Wang unsigned int line_number, const char *message, ...) 335cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project{ 336cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project va_list args; 337cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 338cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (error_one_per_line) 339cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project { 340cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project static const char *old_file_name; 341cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project static unsigned int old_line_number; 342cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 343cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (old_line_number == line_number 34405436638acc7c010349a69c3395f1a57c642dc62Ying Wang && (file_name == old_file_name 34505436638acc7c010349a69c3395f1a57c642dc62Ying Wang || strcmp (old_file_name, file_name) == 0)) 34605436638acc7c010349a69c3395f1a57c642dc62Ying Wang /* Simply return and print nothing. */ 34705436638acc7c010349a69c3395f1a57c642dc62Ying Wang return; 348cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 349cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project old_file_name = file_name; 350cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project old_line_number = line_number; 351cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project } 352cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 353cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if defined _LIBC && defined __libc_ptf_call 354cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project /* We do not want this call to be cut short by a thread 355cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project cancellation. Therefore disable cancellation for now. */ 356cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project int state = PTHREAD_CANCEL_ENABLE; 357cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), 35805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 0); 359cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 360cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 36105436638acc7c010349a69c3395f1a57c642dc62Ying Wang flush_stdout (); 362cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 363cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project _IO_flockfile (stderr); 364cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 365cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project if (error_print_progname) 366cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project (*error_print_progname) (); 367cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project else 368cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project { 369cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 37005436638acc7c010349a69c3395f1a57c642dc62Ying Wang __fxprintf (NULL, "%s:", program_name); 37105436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 37205436638acc7c010349a69c3395f1a57c642dc62Ying Wang fprintf (stderr, "%s:", program_name); 373cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 374cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project } 375cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 376cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#if _LIBC 37705436638acc7c010349a69c3395f1a57c642dc62Ying Wang __fxprintf (NULL, file_name != NULL ? "%s:%d: " : " ", 37805436638acc7c010349a69c3395f1a57c642dc62Ying Wang file_name, line_number); 37905436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 38005436638acc7c010349a69c3395f1a57c642dc62Ying Wang fprintf (stderr, file_name != NULL ? "%s:%d: " : " ", 38105436638acc7c010349a69c3395f1a57c642dc62Ying Wang file_name, line_number); 382cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 383cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 384cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project va_start (args, message); 385cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project error_tail (status, errnum, message, args); 386cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 387cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 388cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project _IO_funlockfile (stderr); 389cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# ifdef __libc_ptf_call 390cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project __libc_ptf_call (pthread_setcancelstate, (state, NULL), 0); 391cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# endif 392cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 393cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project} 394cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project 395cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#ifdef _LIBC 396cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project/* Make the weak alias. */ 397cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# undef error 398cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project# undef error_at_line 399cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectweak_alias (__error, error) 400cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Projectweak_alias (__error_at_line, error_at_line) 401cea198a11f15a2eb071d98491ca9a8bc8cebfbc4The Android Open Source Project#endif 402