version 1.1, 2012/02/21 22:57:48
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version 1.1.1.2, 2012/05/29 09:29:43
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/* Error handler for noninteractive utilities |
/* Error handler for noninteractive utilities |
Copyright (C) 1990-1998, 2000-2007 Free Software Foundation, Inc. | Copyright (C) 1990-1998, 2000-2007, 2009-2011 Free Software Foundation, Inc. |
This file is part of the GNU C Library. |
This file is part of the GNU C Library. |
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This program is free software: you can redistribute it and/or modify |
This program is free software: you can redistribute it and/or modify |
Line 70 unsigned int error_message_count;
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Line 70 unsigned int error_message_count;
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extern void __error (int status, int errnum, const char *message, ...) |
extern void __error (int status, int errnum, const char *message, ...) |
__attribute__ ((__format__ (__printf__, 3, 4))); |
__attribute__ ((__format__ (__printf__, 3, 4))); |
extern void __error_at_line (int status, int errnum, const char *file_name, |
extern void __error_at_line (int status, int errnum, const char *file_name, |
unsigned int line_number, const char *message, | unsigned int line_number, const char *message, |
...) | ...) |
__attribute__ ((__format__ (__printf__, 5, 6)));; |
__attribute__ ((__format__ (__printf__, 5, 6)));; |
# define error __error |
# define error __error |
# define error_at_line __error_at_line |
# define error_at_line __error_at_line |
Line 85 extern void __error_at_line (int status, int errnum, c
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Line 85 extern void __error_at_line (int status, int errnum, c
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#else /* not _LIBC */ |
#else /* not _LIBC */ |
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# if !HAVE_DECL_STRERROR_R && STRERROR_R_CHAR_P | # include <fcntl.h> |
| # include <unistd.h> |
| |
| # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ |
| /* Get declarations of the Win32 API functions. */ |
| # define WIN32_LEAN_AND_MEAN |
| # include <windows.h> |
| # endif |
| |
| /* The gnulib override of fcntl is not needed in this file. */ |
| # undef fcntl |
| |
| # if !HAVE_DECL_STRERROR_R |
# ifndef HAVE_DECL_STRERROR_R |
# ifndef HAVE_DECL_STRERROR_R |
"this configure-time declaration test was not run" |
"this configure-time declaration test was not run" |
# endif |
# endif |
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# if STRERROR_R_CHAR_P |
char *strerror_r (); |
char *strerror_r (); |
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# else |
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int strerror_r (); |
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# endif |
# endif |
# endif |
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/* The calling program should define program_name and set it to the |
/* The calling program should define program_name and set it to the |
Line 98 extern char *program_name;
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Line 114 extern char *program_name;
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# if HAVE_STRERROR_R || defined strerror_r |
# if HAVE_STRERROR_R || defined strerror_r |
# define __strerror_r strerror_r |
# define __strerror_r strerror_r |
# endif /* HAVE_STRERROR_R || defined strerror_r */ | # endif /* HAVE_STRERROR_R || defined strerror_r */ |
#endif /* not _LIBC */ | #endif /* not _LIBC */ |
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#if !_LIBC |
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/* Return non-zero if FD is open. */ |
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static inline int |
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is_open (int fd) |
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{ |
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# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ |
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/* On Win32: The initial state of unassigned standard file descriptors is |
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that they are open but point to an INVALID_HANDLE_VALUE. There is no |
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fcntl, and the gnulib replacement fcntl does not support F_GETFL. */ |
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return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE; |
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# else |
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# ifndef F_GETFL |
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# error Please port fcntl to your platform |
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# endif |
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return 0 <= fcntl (fd, F_GETFL); |
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# endif |
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} |
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#endif |
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static inline void |
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flush_stdout (void) |
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{ |
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#if !_LIBC |
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int stdout_fd; |
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# if GNULIB_FREOPEN_SAFER |
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/* Use of gnulib's freopen-safer module normally ensures that |
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fileno (stdout) == 1 |
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whenever stdout is open. */ |
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stdout_fd = STDOUT_FILENO; |
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# else |
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/* POSIX states that fileno (stdout) after fclose is unspecified. But in |
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practice it is not a problem, because stdout is statically allocated and |
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the fd of a FILE stream is stored as a field in its allocated memory. */ |
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stdout_fd = fileno (stdout); |
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# endif |
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/* POSIX states that fflush (stdout) after fclose is unspecified; it |
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is safe in glibc, but not on all other platforms. fflush (NULL) |
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is always defined, but too draconian. */ |
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if (0 <= stdout_fd && is_open (stdout_fd)) |
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#endif |
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fflush (stdout); |
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} |
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static void |
static void |
print_errno_message (int errnum) |
print_errno_message (int errnum) |
{ |
{ |
Line 147 error_tail (int status, int errnum, const char *messag
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Line 207 error_tail (int status, int errnum, const char *messag
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bool use_malloc = false; |
bool use_malloc = false; |
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while (1) |
while (1) |
{ | { |
if (__libc_use_alloca (len * sizeof (wchar_t))) | if (__libc_use_alloca (len * sizeof (wchar_t))) |
wmessage = (wchar_t *) alloca (len * sizeof (wchar_t)); | wmessage = (wchar_t *) alloca (len * sizeof (wchar_t)); |
else | else |
{ | { |
if (!use_malloc) | if (!use_malloc) |
wmessage = NULL; | wmessage = NULL; |
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wchar_t *p = (wchar_t *) realloc (wmessage, | wchar_t *p = (wchar_t *) realloc (wmessage, |
len * sizeof (wchar_t)); | len * sizeof (wchar_t)); |
if (p == NULL) | if (p == NULL) |
{ | { |
free (wmessage); | free (wmessage); |
fputws_unlocked (L"out of memory\n", stderr); | fputws_unlocked (L"out of memory\n", stderr); |
return; | return; |
} | } |
wmessage = p; | wmessage = p; |
use_malloc = true; | use_malloc = true; |
} | } |
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memset (&st, '\0', sizeof (st)); | memset (&st, '\0', sizeof (st)); |
tmp = message; | tmp = message; |
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res = mbsrtowcs (wmessage, &tmp, len, &st); | res = mbsrtowcs (wmessage, &tmp, len, &st); |
if (res != len) | if (res != len) |
break; | break; |
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if (__builtin_expect (len >= SIZE_MAX / 2, 0)) | if (__builtin_expect (len >= SIZE_MAX / 2, 0)) |
{ | { |
/* This really should not happen if everything is fine. */ | /* This really should not happen if everything is fine. */ |
res = (size_t) -1; | res = (size_t) -1; |
break; | break; |
} | } |
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len *= 2; | len *= 2; |
} | } |
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if (res == (size_t) -1) |
if (res == (size_t) -1) |
{ | { |
/* The string cannot be converted. */ | /* The string cannot be converted. */ |
if (use_malloc) | if (use_malloc) |
{ | { |
free (wmessage); | free (wmessage); |
use_malloc = false; | use_malloc = false; |
} | } |
wmessage = (wchar_t *) L"???"; | wmessage = (wchar_t *) L"???"; |
} | } |
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__vfwprintf (stderr, wmessage, args); |
__vfwprintf (stderr, wmessage, args); |
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if (use_malloc) |
if (use_malloc) |
free (wmessage); | free (wmessage); |
} |
} |
else |
else |
#endif |
#endif |
Line 233 error (int status, int errnum, const char *message, ..
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Line 293 error (int status, int errnum, const char *message, ..
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cancellation. Therefore disable cancellation for now. */ |
cancellation. Therefore disable cancellation for now. */ |
int state = PTHREAD_CANCEL_ENABLE; |
int state = PTHREAD_CANCEL_ENABLE; |
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), |
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), |
0); | 0); |
#endif |
#endif |
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fflush (stdout); | flush_stdout (); |
#ifdef _LIBC |
#ifdef _LIBC |
_IO_flockfile (stderr); |
_IO_flockfile (stderr); |
#endif |
#endif |
Line 268 int error_one_per_line;
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Line 328 int error_one_per_line;
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void |
void |
error_at_line (int status, int errnum, const char *file_name, |
error_at_line (int status, int errnum, const char *file_name, |
unsigned int line_number, const char *message, ...) | unsigned int line_number, const char *message, ...) |
{ |
{ |
va_list args; |
va_list args; |
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Line 278 error_at_line (int status, int errnum, const char *fil
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Line 338 error_at_line (int status, int errnum, const char *fil
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static unsigned int old_line_number; |
static unsigned int old_line_number; |
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if (old_line_number == line_number |
if (old_line_number == line_number |
&& (file_name == old_file_name | && (file_name == old_file_name |
|| strcmp (old_file_name, file_name) == 0)) | || strcmp (old_file_name, file_name) == 0)) |
/* Simply return and print nothing. */ | /* Simply return and print nothing. */ |
return; | return; |
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old_file_name = file_name; |
old_file_name = file_name; |
old_line_number = line_number; |
old_line_number = line_number; |
Line 292 error_at_line (int status, int errnum, const char *fil
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Line 352 error_at_line (int status, int errnum, const char *fil
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cancellation. Therefore disable cancellation for now. */ |
cancellation. Therefore disable cancellation for now. */ |
int state = PTHREAD_CANCEL_ENABLE; |
int state = PTHREAD_CANCEL_ENABLE; |
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), |
__libc_ptf_call (pthread_setcancelstate, (PTHREAD_CANCEL_DISABLE, &state), |
0); | 0); |
#endif |
#endif |
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fflush (stdout); | flush_stdout (); |
#ifdef _LIBC |
#ifdef _LIBC |
_IO_flockfile (stderr); |
_IO_flockfile (stderr); |
#endif |
#endif |
Line 312 error_at_line (int status, int errnum, const char *fil
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Line 372 error_at_line (int status, int errnum, const char *fil
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#if _LIBC |
#if _LIBC |
__fxprintf (NULL, file_name != NULL ? "%s:%d: " : " ", |
__fxprintf (NULL, file_name != NULL ? "%s:%d: " : " ", |
file_name, line_number); | file_name, line_number); |
#else |
#else |
fprintf (stderr, file_name != NULL ? "%s:%d: " : " ", |
fprintf (stderr, file_name != NULL ? "%s:%d: " : " ", |
file_name, line_number); | file_name, line_number); |
#endif |
#endif |
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va_start (args, message); |
va_start (args, message); |