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mirror of https://sourceware.org/git/glibc.git synced 2025-05-28 16:21:30 +03:00
glibc/libio/bits/stdio2.h
Ulrich Drepper 553cc5f9ad * sysdeps/unix/sysv/linux/libc_fatal.c: Print backtrace and memory
map if requested.
	* debug/chk_fail.c: Request backtrace and memory map dump.

	* Versions.def: Add GLIBC_2.4 for libc.
	* debug/fgets_chk.c: New file.
	* debug/fgets_u_chk.c: New file.
	* debug/getcwd_chk.c: New file.
	* debug/getwd_chk.c: New file.
	* debug/readlink_chk.c: New file.
	* debug/read_chk.c: New file.
	* debug/pread_chk.c: New file.
	* debug/pread64_chk.c: New file.
	* debug/recv_chk.c: New file.
	* debug/recvfrom_chk.c: New file.
	* debug/Versions: Add all new functions with version GLIBC_2.4.
	* debug/Makefile (routines): Add fgets_chk, fgets_u_chk, read_chk,
	pread_chk, pread64_chk, recv_chk, recvfrom_chk, readlink_chk,
	getwd_chk, and getcwd_chk.  Plus appropriate CFLAGS definitions.
	* debug/tst-chk1.c: Add more tests.
	* libio/bits/stdio2.h: Add macros for fgets and fgets_unlocked.
	* include/stdio.h: Declare __fgets_chk and __fgets_unlocked_chk.
	* posix/unistd.h: Include <bits/unistd.h> for fortification.
	* posix/bits/unistd.h: New file.
	* posix/Makefile (headers): Add bits/unistd.h.
	* socket/sys/socket.h: Include <bits/socket2.h> for fortification.
	* socket/bits/socket2.h: New file.
	* socket/Makefile (headers): Add bits/socket2.h.

	* string/bits/string3.h: Extend memset macro to check for zero 3rd
	parameter and use __memset_zero_constant_len_parameter in that case.
	* sysdeps/generic/memset_chk.c: Add
	__memset_zero_constant_len_parameter alias and linker warning.
	* debug/Versions: Add __memset_zero_constant_len_parameter to libc
	with version GLIBC_2.4.

	* sysdeps/generic/bits/types.h: Don't unnecessarily use __extension__
	in __STD_TYPE definition.

2005-02-21  Jakub Jelinek  <jakub@redhat.com>

	* malloc/malloc.c (malloc_printerr): If MALLOC_CHECK_={5,7}, print
	the error message rather than program name.

2005-02-21  Ulrich Drepper  <drepper@redhat.com>
2005-02-21 23:14:10 +00:00

90 lines
3.6 KiB
C

/* Checking macros for stdio functions.
Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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. */
#ifndef _STDIO_H
# error "Never include <bits/stdio2.h> directly; use <stdio.h> instead."
#endif
extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
__const char *__restrict __format, ...) __THROW;
extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
__const char *__restrict __format,
_G_va_list __ap) __THROW;
#define sprintf(str, ...) \
__builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \
__VA_ARGS__)
#define vsprintf(str, fmt, ap) \
__builtin___vsprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), fmt, ap)
#if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
extern int __snprintf_chk (char *__restrict __s, size_t __n, int __flag,
size_t __slen, __const char *__restrict __format,
...) __THROW;
extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
size_t __slen, __const char *__restrict __format,
_G_va_list __ap) __THROW;
# define snprintf(str, len, ...) \
__builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
__VA_ARGS__)
# define vsnprintf(str, len, fmt, ap) \
__builtin___vsnprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
fmt, ap)
#endif
#if __USE_FORTIFY_LEVEL > 1
extern int __fprintf_chk (FILE *__restrict __stream, int __flag,
__const char *__restrict __format, ...);
extern int __printf_chk (int __flag, __const char *__restrict __format, ...);
extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
__const char *__restrict __format, _G_va_list __ap);
extern int __vprintf_chk (int __flag, __const char *__restrict __format,
_G_va_list __ap);
# define printf(...) \
__printf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
# define fprintf(stream, ...) \
__fprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
# define vprintf(format, ap) \
__vprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap)
# define vfprintf(stream, format, ap) \
__vfprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap)
#endif
extern char *__gets_chk (char *__str, size_t);
#define gets(__str) \
((__bos (__str) == (size_t) -1) \
? gets (__str) : __gets_chk (__str, __bos (__str)))
extern char *__fgets_chk (char *s, size_t size, int n, FILE *stream);
#define fgets(__str, __n, __fp) \
((__bos (__str) == (size_t) -1) \
? fgets (__str, __n, __fp) : __fgets_chk (__str, __bos (__str), __n, __fp))
extern char *__fgets_unlocked_chk (char *s, size_t size, int n, FILE *stream);
#define fgets_unlocked(__str, __n, __fp) \
((__bos (__str) == (size_t) -1) \
? fgets_unlocked (__str, __n, __fp) \
: __fgets_unlocked_chk (__str, __bos (__str), __n, __fp))