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Joseph Myers 5c112f1b62 Avoid insecure usage of tmpnam in tests.
Various glibc testcases use tmpnam in ways subject to race conditions
(generate a temporary file name, then later open that file without
O_EXCL).

This patch fixes those tests to use mkstemp - generally a minimal
local fix to use mkstemp instead of tmpnam, rather than a larger fix
to use other testsuite infrastructure for temporary files.  The
unchanged use of tmpnam in posix/wordexp-test.c would fail safe in the
event of a race (it's generating a name for use with mkdir rather than
for a file to be opened for writing).

Tested for x86_64.

	* grp/tst_fgetgrent.c: Include <unistd.h>.
	(main): Use mkstemp instead of tmpnam.
	* io/test-utime.c (main): Likewise.
	* posix/annexc.c (macrofile): Change to modifiable array.
	(get_null_defines): Use mkstemp instead of tmpnam.  Do not remove
	macrofile here.
	* posix/bug-getopt1.c: Include <stdlib.h>.
	(do_test): Use mkstemp instead of tmpnam.
	* posix/bug-getopt2.c: Include <stdlib.h>.
	(do_test): Use mkstemp instead of tmpnam.
	* posix/bug-getopt3.c: Include <stdlib.h>.
	(do_test): Use mkstemp instead of tmpnam.
	* posix/bug-getopt4.c: Include <stdlib.h>.
	(do_test): Use mkstemp instead of tmpnam.
	* posix/bug-getopt5.c: Include <stdlib.h>.
	(do_test): Use mkstemp instead of tmpnam.
	* stdio-common/bug7.c: Include <stdlib.h> and <unistd.h>.
	(main): Use mkstemp instead of tmpnam.
	* stdio-common/tst-fdopen.c: Include <stdlib.h>.
	(main): Use mkstemp instead of tmpnam.
	* stdio-common/tst-ungetc.c: Include <stdlib.h>.
	(main): use mkstemp instead of tmpnam.
	* stdlib/isomac.c (macrofile): Change to modifiable array.
	(get_null_defines): Use mkstemp instead of tmpnam.  Do not remove
	macrofile here.
2018-07-18 21:04:12 +00:00
argp Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
assert Fix uninitialized variable in assert_perror (bug 22761) 2018-02-05 11:06:15 +01:00
benchtests Improve strstr performance 2018-07-16 17:51:52 +01:00
bits hurd: Fix shmid_ds's shm_segsz field type 2018-06-02 21:52:43 +02:00
catgets intl/tst-gettext: fix failure with newest msgfmt 2018-02-18 18:16:05 +01:00
ChangeLog.old Add missing reference to bug 21654 2017-10-07 13:14:36 +02:00
conform conform/conformtest.pl: Escape literal braces in regular expressions 2018-07-06 16:31:55 +02:00
crypt New configure option --disable-crypt. 2018-06-29 16:53:47 +02:00
csu Build csu/elf-init.c and csu/static-reloc.c with stack protector 2018-07-05 22:57:45 +02:00
ctype Use libc_hidden_* for tolower, toupper (bug 15105). 2018-02-23 13:54:53 +00:00
debug Compile debug/stack_chk_fail_local.c with stack protector 2018-07-05 19:28:35 +02:00
dirent Consolidate alphasort{64} and versionsort{64} implementation 2018-04-23 17:35:16 -03:00
dlfcn libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
elf x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
gmon Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
grp Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
gshadow Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
hesiod Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
htl hurd: Fix missing __pthread_get_cleanup_stack symbol 2018-06-16 10:52:04 +02:00
hurd hurd: Silence warning 2018-04-04 02:06:16 +02:00
iconv Fix s390 -Os iconv build. 2018-03-05 21:46:55 +00:00
iconvdata localedata: Make IBM273 compatible with ISO-8859-1 [BZ #23290] 2018-06-14 22:34:10 +02:00
include Add the statx function 2018-07-10 16:14:45 +02:00
inet manual: Revise crypt.texi. 2018-06-29 16:53:37 +02:00
intl intl/tst-gettext: fix failure with newest msgfmt 2018-02-18 18:16:05 +01:00
io Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
libio Fix copyright years in recent commits 2018-07-10 11:03:08 +02:00
locale Fix two more -Os strcoll / wcscoll build failures. 2018-02-27 16:55:42 +00:00
localedata New locale: Yakut (Sakha) for Russia (sah_RU) [BZ #22241] 2018-07-18 11:45:44 +02:00
login Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251) 2018-06-26 13:22:53 -03:00
mach hurd: Avoid PLT references to syscalls 2018-06-16 02:50:36 +02:00
malloc libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
manual x86/CET: Document glibc.tune.x86_ibt and glibc.tune.x86_shstk 2018-07-18 11:35:03 -07:00
math Add a generic significand implementation 2018-06-20 18:15:06 -03:00
mathvec Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
misc Implement allocate_once for atomic initialization with allocation 2018-05-23 15:27:01 +02:00
nis nisplus: Correct pwent parsing issue and resulting build error [BZ #23266] 2018-06-27 21:12:16 +01:00
nptl x86: Rename __glibc_reserved1 to feature_1 in tcbhead_t [BZ #22563] 2018-07-14 05:56:46 -07:00
nptl_db nptl_db: Remove stale match_pid' parameter from iterate_thread_list' 2018-03-01 16:10:05 +00:00
nscd manual: Revise crypt.texi. 2018-06-29 16:53:37 +02:00
nss Fix copyright years in recent commits 2018-07-10 11:03:08 +02:00
po Update translations from the Translation Project 2018-03-12 13:24:46 +00:00
posix Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
pwd manual: Revise crypt.texi. 2018-06-29 16:53:37 +02:00
resolv libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
resource resource/tst-getrlimit.c: Add copyright header 2018-01-05 20:34:10 +01:00
rt hurd: Add hurd thread library 2018-04-02 01:44:14 +02:00
scripts Fix hardcoded /tmp paths in testing (bug 13888). 2018-06-26 21:48:48 +00:00
setjmp x86: Use pad in pthread_unwind_buf to preserve shadow stack register 2018-05-02 06:17:41 -07:00
shadow manual: Revise crypt.texi. 2018-06-29 16:53:37 +02:00
signal Add tst-sigaction.c to test BZ #23069 2018-04-26 22:21:13 +02:00
socket Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
soft-fp Make powerpc-nofpu __sqrtsf2, __sqrtdf2 compat symbols (bug 18473). 2018-06-01 17:25:12 +00:00
stdio-common Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
stdlib Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
streams Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
string Improve strstr performance 2018-07-16 17:51:52 +01:00
sunrpc libc: Extend __libc_freeres framework (Bug 23329). 2018-06-29 22:39:06 -04:00
support support: Add TEST_NO_SETVBUF 2018-06-26 12:30:50 +02:00
sysdeps x86-64: Use _CET_NOTRACK in memcmp-sse4.S 2018-07-18 08:07:32 -07:00
sysvipc Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
termios Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
time Use _STRUCT_TIMESPEC as guard in <bits/types/struct_timespec.h> [BZ #23349] 2018-06-28 13:12:16 +02:00
timezone Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
wcsmbs Add tests for sign of NaN returned by strtod (bug 23007). 2018-06-15 17:36:21 +00:00
wctype Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
.gitattributes
.gitignore
abi-tags
aclocal.m4 LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes 2018-01-25 17:20:28 +01:00
ChangeLog Avoid insecure usage of tmpnam in tests. 2018-07-18 21:04:12 +00:00
config.h.in Switch IDNA implementation to libidn2 [BZ #19728] [BZ #19729] [BZ #22247] 2018-05-23 15:27:24 +02:00
config.make.in New configure option --disable-crypt. 2018-06-29 16:53:47 +02:00
configure x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
configure.ac x86: Support IBT and SHSTK in Intel CET [BZ #21598] 2018-07-16 14:08:27 -07:00
COPYING
COPYING.LIB
extra-lib.mk
gen-locales.mk Improve gen-locales.mk and gen-locale.sh to make test files with @ options work 2018-02-27 17:01:57 +01:00
INSTALL Intel CET: Document --enable-cet 2018-07-18 09:52:53 -07:00
libc-abis libc-abis: Define ABSOLUTE ABI [BZ #19818][BZ #23307] 2018-07-05 18:06:43 +01:00
libof-iterator.mk
LICENSES stdio-common/tst-printf.c: Remove part under a non-free license [BZ #23363] 2018-07-03 18:29:16 +02:00
MAINTAINERS
Makeconfig New configure option --disable-crypt. 2018-06-29 16:53:47 +02:00
Makefile testrun.sh: Implement --tool=strace, --tool=valgrind 2018-07-04 15:30:45 +02:00
Makefile.in
Makerules Run thread shutdown functions in an explicit order 2018-06-26 15:27:12 +02:00
NEWS Intel CET: Document --enable-cet 2018-07-18 09:52:53 -07:00
o-iterator.mk
README Remove tilegx port. 2018-04-27 19:11:24 +00:00
Rules Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
shlib-versions
test-skeleton.c Update copyright dates with scripts/update-copyrights. 2018-01-01 00:32:25 +00:00
version.h Open master branch for glibc 2.28 development 2018-02-01 17:18:19 +00:00

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
languages use the C library to access the underlying operating system.

In GNU/Linux systems, the C library works with the Linux kernel to
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In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.

When working with Linux kernels, this version of the GNU C Library
requires Linux kernel version 3.2 or later.

Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
	alpha*-*-linux-gnu
	arm-*-linux-gnueabi
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If you are interested in doing a port, please contact the glibc
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See the file INSTALL to find out how to configure, build, and install
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