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2025-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
2024-10-08stdlib: Make abort/_Exit AS-safe (BZ 26275)Adhemerval Zanella1-3/+3
The recursive lock used on abort does not synchronize with a new process creation (either by fork-like interfaces or posix_spawn ones), nor it is reinitialized after fork(). Also, the SIGABRT unblock before raise() shows another race condition, where a fork or posix_spawn() call by another thread, just after the recursive lock release and before the SIGABRT signal, might create programs with a non-expected signal mask. With the default option (without POSIX_SPAWN_SETSIGDEF), the process can see SIG_DFL for SIGABRT, where it should be SIG_IGN. To fix the AS-safe, raise() does not change the process signal mask, and an AS-safe lock is used if a SIGABRT is installed or the process is blocked or ignored. With the signal mask change removal, there is no need to use a recursive loc. The lock is also taken on both _Fork() and posix_spawn(), to avoid the spawn process to see the abort handler as SIG_DFL. A read-write lock is used to avoid serialize _Fork and posix_spawn execution. Both sigaction (SIGABRT) and abort() requires to lock as writer (since both change the disposition). The fallback is also simplified: there is no need to use a loop of ABORT_INSTRUCTION after _exit() (if the syscall does not terminate the process, the system is broken). The proposed fix changes how setjmp works on a SIGABRT handler, where glibc does not save the signal mask. So usage like the below will now always abort. static volatile int chk_fail_ok; static jmp_buf chk_fail_buf; static void handler (int sig) { if (chk_fail_ok) { chk_fail_ok = 0; longjmp (chk_fail_buf, 1); } else _exit (127); } [...] signal (SIGABRT, handler); [....] chk_fail_ok = 1; if (! setjmp (chk_fail_buf)) { // Something that can calls abort, like a failed fortify function. chk_fail_ok = 0; printf ("FAIL\n"); } Such cases will need to use sigsetjmp instead. The _dl_start_profile calls sigaction through _profil, and to avoid pulling abort() on loader the call is replaced with __libc_sigaction. Checked on x86_64-linux-gnu and aarch64-linux-gnu. Reviewed-by: DJ Delorie <dj@redhat.com>
2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
2023-12-29debug: Adapt fortify tests to libsupportAdhemerval Zanella1-1/+1
Checked on aarch64, armhf, x86_64, and i686. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers1-1/+1
2022-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2021-09-03Remove "Contributed by" linesSiddhesh Poyarekar1-1/+0
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert1-1/+1
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2017-03-23Update string tests to use the support test driver.Wainer dos Santos Moschetta1-2/+3
Replaced all imports of test-skeleton.c with support/test-driver.c. In some cases it was needed to adjust do_test to return int instead of static int since that is the method's signature expected by test-driver.c. Checked on x86_64. * string/test-string.h (TEST_FUNCTION): Use test_main instead of test_main (). (CMDLINE_PROCESS): Use function instead of defined macro. * debug/test-strcpy_chk.c: Import support/test-driver.c and also <suppport/support.h> to use set_fortify_handler(). * string/bug-envz1.c: Import support/test-driver.c instead of test-skeleton.c. * string/bug-strcoll2.c: Likewise. * string/bug-strtok1.c: Likewise. * string/stratcliff.c: Likewise. * string/test-ffs.c: Likewise. * string/test-memccpy.c: Likewise. * string/test-memchr.c: Likewise. * string/test-memcmp.c: Likewise. * string/test-memcpy.c: Likewise. * string/test-memmem.c: Likewise. * string/test-memmove.c: Likewise. * string/test-memrchr.c: Likewise. * string/test-memset.c: Likewise. * string/test-rawmemchr.c: Likewise. * string/test-strcasecmp.c: Likewise. * string/test-strcasestr.c: Likewise. * string/test-strcat.c: Likewise. * string/test-strchr.c: Likewise. * string/test-strcmp.c: Likewise. * string/test-strcpy.c: Likewise. * string/test-string.h: Likewise. * string/test-strlen.c: Likewise. * string/test-strncasecmp.c: Likewise. * string/test-strncat.c: Likewise. * string/test-strncmp.c: Likewise. * string/test-strncpy.c: Likewise. * string/test-strnlen.c: Likewise. * string/test-strpbrk.c: Likewise. * string/test-strrchr.c: Likewise. * string/test-strspn.c: Likewise. * string/test-strstr.c: Likewise. * string/tst-bswap.c: Likewise. * string/tst-cmp.c: Likewise. * string/tst-endian.c: Likewise. * string/tst-inlcall.c: Likewise. * string/tst-strcoll-overflow.c: Likewise. * string/tst-strfry.c: Likewise. * string/tst-strlen.c: Likewise. * string/tst-strtok.c: Likewise. * string/tst-strtok_r.c: Likewise. * string/tst-strxfrm.c: Likewise. * string/tst-strxfrm2.c: Likewise. * string/tst-svc.c: Likewise. * string/tst-svc2.c: Likewise.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2014-02-08tests: unify fortification handler logicMike Frysinger1-20/+6
We have multiple tests that copy & paste the same logic for disabling the fortification output. Let's unify this in the test-skeleton instead. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae1-1/+1
2013-06-11Port remaining string benchmarksSiddhesh Poyarekar1-24/+0
There were a few more string benchmarks (strcpy_chk and stpcpy_check) in the debug directory that needed to be ported over.
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers1-1/+1
2012-11-29Mention that __chk_fail is a public ABI in test-strcpy_chk.cFlorian Weimer1-0/+3
* debug/test-strcpy_chk.c: Mention __chk_fail ABI test.
2012-10-19Add debug IFUNC testsH.J. Lu1-1/+2
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert1-3/+2
2007-07-28* nss/nsswitch.c (__nss_lookup_function): Don't cast &ni->known toUlrich Drepper1-4/+7
void **. * nss/nsswitch.h (service_user): Use void * type for KNOWN field. * nss/nss_files/files-hosts.c (LINE_PARSER): Cast host_addr to char * to avoid warning. * nis/nss_nis/nis-hosts.c (LINE_PARSER): Likewise. * timezone/Makefile (CFLAGS-zdump.c): Add -fwrapv. * locale/programs/ld-ctype.c (ctype_finish, set_class_defaults, allocate_arrays): Cast second argument to charmap_find_symbol to char * to avoid warnings. * locale/programs/repertoire.c (repertoire_new_char): Change from_nr, to_nr and cnt to unsigned long, adjust printf format string. * locale/programs/ld-collate.c (insert_value, handle_ellipsis): Cast second argument to new_element to char * to avoid warnings. * locale/weightwc.h (findidx): Cast &extra[-i] to const int32_t *. * intl/gettextP.h (struct loaded_domain): Change plural to const struct expression *. * intl/plural-eval.c (plural_eval): Change first argument to const struct expression *. * intl/plural-exp.c (EXTRACT_PLURAL_EXPRESSION): Change first argument to const struct expression **. * intl/plural-exp.h (EXTRACT_PLURAL_EXPRESSION, plural_eval): Adjust prototypes. * intl/loadmsgcat (_nl_unload_domain): Cast away const in call to __gettext_free_exp. * posix/fnmatch.c (fnmatch): Rearrange code to avoid maybe unitialized wstring/wpattern var warnings. * posix/runtests.c (struct a_test): Make data field const char *. * stdio-common/tst-sprintf2.c (main): Don't declere u, v and buf vars if not LDBL_MANT_DIG >= 106. * stdio-common/Makefile (CFLAGS-vfwprintf.c): Add -Wno-unitialized. * stdio-common/vfprintf.c (vfprintf): Cast first arugment to __find_specmb to avoid warning. * rt/tst-mqueue1.c (do_one_test): Add casts to avoid warnings. * debug/test-strcpy_chk.c (do_tests, do_random_tests): Add casts to avoid warnings. * sysdeps/ieee754/ldbl-96/s_roundl.c (huge): Add L suffix to initializer. * sysdeps/unix/clock_gettime.c (clock_gettime): Only define tv var when it will be actually used. * sunrpc/rpc_cmsg.c (xdr_callmsg): Cast IXDR_PUT_* to void to avoid warnings.
2004-11-13Update.Ulrich Drepper1-16/+33
2004-11-12 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/libc_fatal.c: Add new function __libc_message which performs the printing and simple format string handling. The string is written to tty, stderr, syslog in this order, stopping after the first successful output. (__libc_fatal): Call __libc_message. * include/stdio.h: Declare __libc_message. * malloc/malloc.c (malloc_printerr): Use __libc_message. * debug/chk_fail.c: Also print message with __libc_message. * debug/test-strcpy_chk.c: Ensure that debug messages are not printed to the terminal or stderr. * debug/tst-chk1.c: Likewise. * posix/Makefile: Remove gpl2lgpl variable.
2004-10-182004-10-15 Jakub Jelinek <jakub@redhat.com>Ulrich Drepper1-0/+370
* 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.
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