2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-18 06:17:19 +02:00
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/* Copyright (C) 1993, 1996, 1997, 1998, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-10 00:18:22 +01:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>.
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2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-15 Jakub Jelinek <jakub@redhat.com>
* elf/dl-minimal.c (__chk_fail): New. Add rtld_hidden_def.
* sysdeps/unix/sysv/linux/readonly-area.c: New file.
* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
routine.
* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
* sysdeps/i386/i686/memmove-chk.S: New file.
* sysdeps/i386/i686/memcpy-chk.S: Likewise.
* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
* sysdeps/i386/i686/memset-chk.S: Likewise.
* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
if exactly fitting into buffer.
* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
* sysdeps/generic/readonly-area.c: New file.
* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
destlen once.
* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
* sysdeps/x86_64/memcpy-chk.S: New file.
* sysdeps/x86_64/mempcpy-chk.S: Likewise.
* sysdeps/x86_64/memset-chk.S: Likewise.
* sysdeps/x86_64/strcpy-chk.S: Likewise.
* sysdeps/x86_64/stpcpy-chk.S: Likewise.
* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
* debug/tst-chk1.c: New test.
* debug/tst-chk2.c: Likewise.
* debug/tst-chk3.c: Likewise.
* debug/test-strcpy_chk.c: Likewise.
* debug/test-stpcpy_chk.c: Likewise.
* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
vfprintf_chk, gets_chk and readonly-area.
(CFLAGS-*_chk.c): Set.
(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
test-stpcpy_chk.
* debug/vprintf_chk.c: New file.
* debug/printf_chk.c: Likewise.
* debug/vfprintf_chk.c: Likewise.
* debug/fprintf_chk.c: Likewise.
* debug/gets_chk.c: Likewise.
* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
passed to __vsnprintf_chk.
* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
__vsnprintf, instead create a temporary file with
_IO_strn_jumps jumptable. If flags > 0, request
_IO_FLAGS2_CHECK_PERCENT_N. Add libc_hidden_def.
* libio/Makefile (headers): Add bits/stdio2.h.
* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
* libio/strfile.h (_IO_strnfile): New type.
(_IO_strn_jumps): New extern.
* libio/vsnprintf.c (_IO_strnfile): Remove.
(_IO_strn_jumps): Remove static.
* libio/bits/stdio2.h: New file.
* libio/vswprintf.c (_IO_strnfile): Rename type to...
(_IO_wstrnfile): ...this. Adjust all uses.
* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
* stdio-common/vfprintf.c (STR_LEN): Define.
(vfprintf): Add readonly_format variable.
Handle _IO_FLAGS2_CHECK_PERCENT_N.
(buffered_vfprintf): Copy _flags2.
* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
__vfprintf_chk): New prototypes.
(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
__strncat_chk): New prototypes.
* include/bits/string3.h: New file.
* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
and rtld_hidden_proto.
* string/Makefile (headers): Add bits/string3.h.
* string/bits/string3.h (bcopy, bzero): New defines.
(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
macros so that inlines are used only if unknown destination size
or side-effects in destination argument.
(mempcpy, stpcpy): Likewise. Protect with #ifdef __USE_GNU.
2004-09-16 Ulrich Drepper <drepper@redhat.com>
* debug/Makefile (routines): Add *_chk.
* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
@GLIBC_2.3.4.
* debug/chk_fail.c: New file.
* debug/snprintf_chk.c: Likewise.
* debug/sprintf_chk.c: Likewise.
* debug/vsnprintf_chk.c: Likewise.
* debug/vsprintf_chk.c: Likewise.
* include/features.h (_FORTIFY_SOURCE): Document, handle.
(__USE_FORTIFY_LEVEL): Define.
(__GNUC_PREREQ): Move to earlier location.
* include/sys/cdefs.h (__chk_fail): New prototype.
* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
Define if __USE_FORTIFY_LEVEL.
* misc/sys/cdefs.h (__bos, __bos0): Define.
* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
* bits/string/string3.h: New header.
* sysdeps/generic/memcpy_chk.c: New file.
* sysdeps/generic/memmove_chk.c: Likewise.
* sysdeps/generic/mempcpy_chk.c: Likewise.
* sysdeps/generic/memset_chk.c: Likewise.
* sysdeps/generic/stpcpy_chk.c: Likewise.
* sysdeps/generic/strcat_chk.c: Likewise.
* sysdeps/generic/strcpy_chk.c: Likewise.
* sysdeps/generic/strncat_chk.c: Likewise.
* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-18 06:17:19 +02:00
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As a special exception, if you link the code in this file with
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|
files compiled with a GNU compiler to produce an executable,
|
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|
that does not cause the resulting executable to be covered by
|
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the GNU Lesser General Public License. This exception does not
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however invalidate any other reasons why the executable file
|
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might be covered by the GNU Lesser General Public License.
|
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|
This exception applies to code released by its copyright holders
|
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in files containing the exception. */
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#include "../libio/libioP.h"
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#include <limits.h>
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char *
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__gets_chk (char *buf, size_t size)
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|
|
{
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_IO_size_t count;
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int ch;
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char *retval;
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if (size == 0)
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__chk_fail ();
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_IO_acquire_lock (_IO_stdin);
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ch = _IO_getc_unlocked (_IO_stdin);
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|
|
if (ch == EOF)
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|
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{
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retval = NULL;
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goto unlock_return;
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}
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if (ch == '\n')
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count = 0;
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else
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{
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/* This is very tricky since a file descriptor may be in the
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non-blocking mode. The error flag doesn't mean much in this
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case. We return an error only when there is a new error. */
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int old_error = _IO_stdin->_IO_file_flags & _IO_ERR_SEEN;
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_IO_stdin->_IO_file_flags &= ~_IO_ERR_SEEN;
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buf[0] = (char) ch;
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|
count = INTUSE(_IO_getline) (_IO_stdin, buf + 1, size - 1, '\n', 0) + 1;
|
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|
|
if (_IO_stdin->_IO_file_flags & _IO_ERR_SEEN)
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|
|
{
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retval = NULL;
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goto unlock_return;
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}
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else
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_IO_stdin->_IO_file_flags |= old_error;
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}
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if (count >= size)
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|
|
__chk_fail ();
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|
|
buf[count] = 0;
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retval = buf;
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unlock_return:
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|
_IO_release_lock (_IO_stdin);
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return retval;
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}
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link_warning (__gets_chk, "the `gets' function is dangerous and should not be used.")
|