Adhemerval Zanella 0b727ed4d6 libio: Flush stream at freopen (BZ#21037) ... As POSIX states [1] a freopen call should first flush the stream as if by a call fflush. C99 (n1256) and C11 (n1570) only states the function should first close any file associated with the specific stream. Although current implementation only follow C specification, current BSD and other libc implementation (musl) are in sync with POSIX and fflush the stream. This patch change freopen{64} to fflush the stream before actually reopening it (or returning if the stream does not support reopen). It also changes the Linux implementation to avoid a dynamic allocation on 'fd_to_filename'. Checked on x86_64-linux-gnu. [BZ #21037] * libio/Makefile (tests): Add tst-memstream4 and tst-wmemstream4. * libio/freopen.c (freopen): Sync stream before reopen and adjust to new fd_to_filename interface. * libio/freopen64.c (freopen64): Likewise. * libio/tst-memstream.h: New file. * libio/tst-memstream4.c: Likewise. * libio/tst-wmemstream4.c: Likewise. * sysdeps/generic/fd_to_filename.h (fd_to_filename): Change signature. * sysdeps/unix/sysv/linux/fd_to_filename.h (fd_to_filename): Likewise and remove internal dynamic allocation. [1] http://pubs.opengroup.org/onlinepubs/9699919799/		2018-10-02 10:01:56 -03:00
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allocalim.h	…
asm-syntax.h	…
atomic-machine.h	…
c++-types.data	…
confstr.h	…
device-nrs.h	…
dirstream.h	…
dl-cache.h	…
dl-dtprocnum.h	…
dl-dtv.h	…
dl-fcntl.h	…
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dl-hash.h	…
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dl-librecon.h	…
dl-lookupcfg.h	…
dl-machine.h	…
dl-mman.h	…
dl-osinfo.h	…
dl-procinfo.c	…
dl-procinfo.h	…
dl-procruntime.c	…
dl-prop.h	x86: Support IBT and SHSTK in Intel CET [BZ #21598]	2018-07-16 14:08:27 -07:00
dl-sysdep.h	…
dl-tls.h	…
dl-unistd.h	…
dwarf2.h	…
elide.h	…
eloop-threshold.h	…
entry.h	…
errqueue.h	…
exit-thread.h	…
fd_to_filename.h	libio: Flush stream at freopen (BZ#21037)	2018-10-02 10:01:56 -03:00
fenv_private.h	Move fenv.h soft-float inlines from fenv_private.h to include/fenv.h.	2018-09-04 19:52:06 +00:00
fips-private.h	…
fix-fp-int-compare-invalid.h	…
fix-fp-int-convert-overflow.h	…
fix-int-fp-convert-zero.h	…
float128-abi.h	…
fork.h	…
fpu_control.h	…
framestate.c	…
gcc-compat.h	…
gccframe.h	…
get-rounding-mode.h	…
gmp-mparam.h	…
hp-timing-common.h	…
hp-timing.h	…
ifreq.h	…
ifunc-init.h	…
ifunc-sel.h	…
internal-signals.h	…
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inttypes.h	…
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ldbl-classify-compat.h	…
ldconfig.h	…
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libc-start.h	…
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libc.abilist	…
libcrypt.abilist	…
libdl.abilist	…
libm-alias-double.h	…
libm-alias-float.h	…
libm-alias-float128.h	…
libm-alias-ldouble.h	…
libm-test-ulps	Replace gen-libm-test.pl with gen-libm-test.py.	2018-08-09 15:34:12 +00:00
libm-test-ulps-name	…
libm.abilist	…
libnsl.abilist	…
libnss_compat.abilist	…
libnss_db.abilist	…
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libnss_files.abilist	…
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libpthread.abilist	…
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libutil.abilist	…
link_map.h	…
linkmap.h	…
local-setxid.h	…
localplt.data	…
machine-gmon.h	…
machine-lock.h	…
machine-sp.h	…
malloc-alignment.h	…
malloc-machine.h	…
malloc-sysdep.h	…
math-barriers.h	…
math-nan-payload-double.h	math: Merge strtod_nan_*.h into math-type-macros-*.h	2018-05-16 06:03:08 +02:00
math-nan-payload-float.h	math: Merge strtod_nan_*.h into math-type-macros-*.h	2018-05-16 06:03:08 +02:00
math-tests-arch.h	…
math-tests-exceptions.h	Move EXCEPTION_TESTS_* out of math-tests.h	2018-08-23 23:41:13 +00:00
math-tests-rounding.h	Move ROUNDING_TESTS_* out of math-tests.h.	2018-08-22 12:25:50 +00:00
math-tests-snan-cast.h	Move SNAN_TESTS_TYPE_CAST out of math-tests.h.	2018-08-01 11:18:57 +00:00
math-tests-snan-payload.h	Move SNAN_TESTS_PRESERVE_PAYLOAD out of math-tests.h.	2018-08-01 11:21:16 +00:00
math-tests-snan.h	Move SNAN_TESTS_* out of math-tests.h.	2018-08-10 19:22:01 +00:00
math-tests-trap-force.h	Move EXCEPTION_SET_FORCES_TRAP out of math-tests.h.	2018-08-27 18:52:41 +00:00
math-tests-trap.h	Move EXCEPTION_ENABLE_SUPPORTED out of math-tests.h.	2018-08-24 19:18:16 +00:00
math-tests.h	Move EXCEPTION_SET_FORCES_TRAP out of math-tests.h.	2018-08-27 18:52:41 +00:00
math-type-macros-double.h	math: Reverse include order in <math-type-macros-*.h>	2018-05-17 15:48:42 +02:00
math-type-macros-float.h	math: Reverse include order in <math-type-macros-*.h>	2018-05-17 15:48:42 +02:00
math-type-macros-float128.h	math: Reverse include order in <math-type-macros-*.h>	2018-05-17 15:48:42 +02:00
math-type-macros-ldouble.h	math: Reverse include order in <math-type-macros-*.h>	2018-05-17 15:48:42 +02:00
math-type-macros.h	Use copysign functions not __copysign functions in glibc libm.	2018-09-27 20:04:48 +00:00
math_ldbl.h	…
math_ldbl_opt.h	…
math_private.h	Add new pow implementation	2018-09-19 10:04:51 +01:00
math_private_calls.h	Use copysign functions not __copysign functions in glibc libm.	2018-09-27 20:04:48 +00:00
memcopy.h	…
memusage.h	…
nan-high-order-bit.h	…
not-cancel.h	Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251)	2018-06-26 13:22:53 -03:00
not-errno.h	…
nscd-types.h	…
pagecopy.h	…
paths.h	…
profil-counter.h	…
pty-private.h	…
register-dump.h	…
rtld-lowlevel.h	…
safe-fatal.h	…
setjmpP.h	…
sigcontextinfo.h	…
siglist.h	…
sigset-cvt-mask.h	…
sigsetops.h	…
stackguard-macros.h	…
stackinfo.h	…
startup.h	…
stdint.h	…
stdio-lock.h	…
string_private.h	…
symbol-hacks.h	…
sysdep-cancel.h	…
sysdep.h	…
thread_state.h	…
tininess.h	…
tls-macros.h	…
tls-setup.h	x86: Rename __glibc_reserved1 to feature_1 in tcbhead_t [BZ #22563]	2018-07-14 05:56:46 -07:00
tls.h	…
tst-audit.h	…
tst-stack-align.h	…
unsecvars.h	…
unwind-dw2-fde-glibc.c	…
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unwind-dw2.c	[BZ #20271] Add newlines in __libc_fatal calls.	2018-08-31 18:04:32 -07:00
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unwind.h	…
utmp-equal.h	…