1998-08-12 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/unix/sysv/linux/configure.in: Obey --with-headers,
document it.
* sysdeps/unix/sysv/linux/alpha/configure.in: New file, contains
test for recent Linux 2.1.100+ headers.
* elf/ldd.bash.in (TEXTDOMAIN, TEXTDOMAINDIR): Surround setting these
with magic comments ###BASH-ONLY and ###END-BASH-ONLY.
* elf/Makefile ($(objpfx)ldd): Generate always from ldd.bash.in.
(common-ldd-rewrite): New variable, old contents of $(sh-ldd-rewrite).
(sh-ldd-rewrite): Use that, add cmds to remove code surrounded by
those magic comments, and to use /bin/sh for @BASH@.
(bash-ldd-rewrite): Use $(common-ldd-rewrite).
* elf/ldd.sh.in: File removed.
* elf/ldd.bash.in (TEXTDOMAIN, TEXTDOMAINDIR): Surround setting these
with magic comments ###BASH-ONLY and ###END-BASH-ONLY.
* elf/Makefile ($(objpfx)ldd): Generate always from ldd.bash.in.
(common-ldd-rewrite): New variable, old contents of $(sh-ldd-rewrite).
(sh-ldd-rewrite): Use that, add cmds to remove code surrounded by
those magic comments, and to use /bin/sh for @BASH@.
(bash-ldd-rewrite): Use $(common-ldd-rewrite).
* elf/ldd.sh.in: File removed.
1998-08-20 20:07 Ulrich Drepper <drepper@cygnus.com>
* pwd/getpw.c (__getpw): Use %lu for uid and gid parameter and
cast them to unsigned long int.
* pwd/putpwent.c (putpwent): Likewise.
Patch by John Tobey <jtobey@banta-im.com>.
1998-08-20 17:14 H.J. Lu <hjl@gnu.org>
* libio/libioP.h (FILEBUF_LITERAL): Set the _offset field to
_IO_pos_BAD.
1998-02-20 17:54 H.J. Lu <hjl@gnu.org>
* libio/fileops.c (_IO_file_seekoff): Don't adjust pointers if
_IO_SYSSEEK fails.
* sysdeps/unix/sysv/linux/Makefile [subdirs=misc] (sysdep_headers):
Add sys/sendfile.h.
* sysdeps/unix/sysv/linux/syscalls.list: Add sendfile.
* sysdeps/unix/sysv/linux/sys/sendfile.h: New file.
* sysdeps/unix/sysv/linux/sys/acct.h: Pretty print.
* sysdeps/unix/sysv/linux/Versions [GLIBC_2.1]: Add umount2 and
sendfile.
1998-08-20 16:01 Ulrich Drepper <drepper@cygnus.com>
* elf/ldd.sh.in: Redirect warnings and error messages to stderr.
* elf/ldd.bash.in: Likewise.
* elf/sln.c: Avoid warning for no main prototype.
* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Remove O_READ and
O_WRITE.
* sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h: Add F_SETSIG and
F_GETSIG.
* sysdeps/unix/sysv/linux/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/fcntl.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Likewise.
1998-08-20 Philip Blundell <pb@nexus.co.uk>
* sysdeps/arm/fpu/ieee754.h: Move to...
* sysdeps/arm/ieee754.h: ... here.
* sysdeps/arm/__longjmp.S: Put return value in correct register.
Don't set the condition flags unnecessarily.
* sysdeps/arm/fpu/__longjmp.S: Likewise. Restore floating point
registers correctly.
* sysdeps/arm/dl-machine.h: Fix problems with profiling code
(patch from Scott Bambrough).
* sysdeps/arm/sysdep.h (CALL_MCOUNT): Add missing semicolons.
* csu/initfini.c (_init): Don't check whether __gmon_start__ is
NULL, just call it unconditionally.
(__gmon_start__): Provide stub version as a weak symbol.
1998-07-30 Philip Blundell <philb@gnu.org>
* sysdeps/unix/sysv/linux/arm/init-first.h: New file (from patch
by Scott Bambrough)
* sysdeps/unix/sysv/linux/arm/errlist.c: New file; ARM tools don't
like `@' in .type directives.
* sysdeps/arm/bsd-setjmp.S: Use PLT for procedure call.
* sysdeps/arm/bsd-_setjmp.S: Likewise.
* sysdeps/arm/dl-machine.h: Set __libc_stack_end.
1998-08-20 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/unix/sysv/linux/mips/bits/fcntl.h (F_SETOWN): Correct value.
(F_GETOWN): Likewise.
* sysdeps/unix/sysv/linux/bits/siginfo.h (SI_SIGIO): Add it (from
Linux 2.1.117).
1998-08-20 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/glob.c [_LIBC]: Define __stat only if not
already defined.
1998-08-14 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nss_compat/compat-grp.c: Set errno to ENOENT if we have no
more entries.
* nis/nss_compat/compat-initgroups.c: Likewise.
* nis/nss_compat/compat-pwd.c: Likewise.
* nis/nss_compat/compat-spwd.c: Likewise.
* nis/nss_nis/nis-alias.c: Likewise.
* nis/nss_nis/nis-ethers.c: Likewise.
* nis/nss_nis/nis-grp.c: Likewise.
* nis/nss_nis/nis-hosts.c: Likewise.
* nis/nss_nis/nis-initgroups.c: Likewise.
* nis/nss_nis/nis-network.c: Likewise.
* nis/nss_nis/nis-proto.c: Likewise.
* nis/nss_nis/nis-pwd.c: Likewise.
* nis/nss_nis/nis-rpc.c: Likewise.
* nis/nss_nis/nis-service.c: Likewise.
* nis/nss_nis/nis-spwd.c: Likewise.
* nis/rpcsvc/yp.h: Generate new without 1024 byte limits.
* nis/ypclnt.c: Try binding dir only first time, could be to old.
* nis/yp_xdr.c: Remove 1024 byte limit.
* nis/ypupdate_xdr.c: Likewise.
* nis/nss_nis/nis-publickey.c: Make sure, nobody could send
wrong data.
* Rules (binaries-static, binaries-shared static pattern rules):
Depend on lib%, not just libc%, from $(link-libc{,-static}).
* sysdeps/mach/hurd/Makefile (link-libc-static): New variable; set
this here, overriding Makeconfig generic value so we link against
the RPC libs.
1998-08-14 10:08 Ulrich Drepper <drepper@cygnus.com>
* manual/texinfo.tex: Update.
1998-08-07 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/backtrace.c: New file.
1998-08-14 Philip Blundell <pb@nexus.co.uk>
* sysdeps/arm/fpu/setjmp.S: Correct value of R0 before calling
sigjmp_save.
* sysdeps/arm/elf/setjmp.S: Obsolete, deleted.
1998-08-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (install-symbolic-link): Fix spelling.
1998-08-11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* elf/elf.h (SHT_HIOS): Fix value.
1998-08-10 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* posix/regex.c (WIDE_CHAR_SUPPORT): Don't generate defined as
part of the expansion, this is undefined by the standard.
1998-08-12 17:03 Ulrich Drepper <drepper@cygnus.com>
* include/unistd.h: Protect against multiple inclusion.
* posix/glob.c: Don't define __glob_pattern_p is NO_GLOB_PATTERN_P
is defined, not is glob is defined.
* sysdeps/unix/sysv/linux/glob64.c: Define NO_GLOB_PATTERN_P.
1998-08-01 17:18 H.J. Lu <hjl@gnu.org>
* sunrpc/rpcsvc/rusers.x (xdr_utmp): Use xdr_bytes instead of
xdr_string for ut_line, ut_name and ut_host.
1998-08-12 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* sysdeps/unix/sysv/linux/paths.h (_PATH_MAILDIR): Change to
/var/mail in accordance with FHS 2.0.
Reported by Javier Kohen <root@jkohen.tough.com.ar> [PR libc/639].
1998-08-12 Richard Henderson <rth@cygnus.com>
* sysdeps/unix/sysv/linux/alpha/syscalls.list (recvmsg, sendmsg):
Update aliases for cancelation.
* sysdeps/unix/sysv/linux/alpha/glob.c: Undef glob*64 before
playing with symbol versions.
(_hurd_canonicalize_directory_name_internal): Do not loop forever
for unknown root directories.
be reached.
multiple inclusion protection.
(_POSIX_SYNCHRONIZED_IO, _POSIX_FSYNC, _POSIX_MAPPED_FILES,
_POSIX_MEMORY_PROTECTION, _POSIX_POLL, _POSIX_SELECT): New macros,
define all these to 1.
(_POSIX_SYNC_IO): Add #undef, to remind us that pathconf reports it.
1998-08-12 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/mach/hurd/getcwd.c
(_hurd_canonicalize_directory_name_internal): Do not loop forever
for unknown root directories.
(__getcwd): Return NULL when the current root directory could not
be reached.
* sysdeps/mach/hurd/getcwd.c
(_hurd_canonicalize_directory_name_internal): Do not loop forever
for unknown root directories.
(__getcwd): Return NULL when the current root directory could not
be reached.
1998-08-10 15:49 Ulrich Drepper <drepper@cygnus.com>
* include/dirent.h: Protect from double inclusion.
1998-08-09 Mark Kettenis <kettenis@phys.uva.nl>
* posix/glob.h: Add LFS support for glob and globfree.
* posix/Versions [GLIBC_2.1]: Add glob64 and globfree64.
* posix/Makefile (routines): Add glob64.
* sysdeps/generic/glob64.c: New file.
* sysdeps/unix/sysv/linux/glob64.c: New file.
* sysdeps/unix/sysv/linux/alpha/glob64.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc64/glob64.c: New file.
* sysdeps/generic/glob.c [_LIBC && glob] (__glob_pattern_p):
Elide function.
* sysdeps/unix/sysv/linux/alpha/glob.c: Add glob64 as a weak alias
for __new_glob. Likewise for globfree64.
* sysdeps/unix/sysv/linux/sparc/sparc64/glob.c: New file.
1998-08-09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/Makefile ($(common-objpfx)s-proto.d): Remove
-include flag from command.
1998-08-10 Ulrich Drepper <drepper@cygnus.com>
* nss/nss_db/db-XXX.c (_nss_db_getXXX): If buffer is too small
decrement `entidx' to allow retrieving the same entry again.
1998-08-07 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/bits/setjmp.h: Use word to save condition
registers.
* sysdeps/powerpc/setjmp.S: Save condition registers.
* sysdeps/powerpc/__longjmp.S: Restore condition registers.
1998-07-31 17:59 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/bits/byteswap.h: Fix problems with side effects.
* manual/filesys.texi: Document truncate and ftruncate.
Patch by Michael Deutschmann <michael@talamasca.wkpowerlink.com>.
* shadow/putspent.c: Lock stream while generating the output.
* sunrpc/clnt_unix.c: Use ucred instead of cmsgcred again.
(__msgwrite): Rewrite accordingly.
* sunrpc/svc_unix.c: Likewise.
* sysdeps/unix/sysv/linux/Dist: Remove __recvmsg.S and __sendmsg.S.
* sysdeps/unix/sysv/linux/Makefile [$(subdir)==socket]
(sysdep_routines): Remove __sendmsg and __recvmsg.
* sysdeps/unix/sysv/linux/__recvmsg.S: Removed.
* sysdeps/unix/sysv/linux/__sendmsg.S: Removed.
* sysdeps/unix/sysv/linux/recvmsg.c: Removed.
* sysdeps/unix/sysv/linux/sendmsg.c: Removed.
* sysdeps/unix/sysv/linux/recvmsg.S: New file.
* sysdeps/unix/sysv/linux/sendmsg.S: New file.
* sysdeps/unix/sysv/linux/bits/socket.h: Define SCM_CREDENTIALS and
struct ucred. Remove struct cmsgcred.
Patches by Thorsten Kukuk.
1998-08-03 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* inet/rcmd.c (__ivaliduser): Allow '#' as comment character.
1998-08-08 14:42 Ulrich Drepper <drepper@cygnus.com>
* argp/argp-help.c: Prepare to be used outside glibc without gcc by
adding usual alloca cruft.
Reported by Eleftherios Gkioulekas <lf@amath.washington.edu>.
1998-04-05 Jim Meyering <meyering@ascend.com>
* lib/regex.c (WIDE_CHAR_SUPPORT): Define.
This now depends on HAVE_BTOWC so systems that lack btowc (like
solaris-2.5.1) don't lose.
1998-08-07 Mark Kettenis <kettenis@phys.uva.nl>
* sysdeps/generic/bits/sigaction.h: Remove definition of SA_DISABLE.
* sysdeps/generic/bits/sigstack.h: Define SS_DISABLE, SS_ONSTACK,
MINSIGSTKZ and SIGSTKSZ. Definitions match BSD.
* hurd/sigunwind.c (_hurdsig_longjmp_from_handler): Use SS_ONSTACK
instead of SA_ONSTACK.
* sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Renamed from
sigaltstack, and created a weak alias. Use SS_DISABLE and
SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK.
* sysdeps/mach/hurd/sigstack.c (sigstack): Use SS_ONSTACK instead
of SA_ONSTACK. Call __sigaltstack instead of sigaltstack.
* sysdeps/mach/hurd/i386/sigreturn.c (__sigreturn): Use SS_ONSTACK
instead of SA_ONSTACK.
* sysdeps/mach/hurd/alpha/sigreturn.c (__sigreturn): Likewise.
* sysdeps/mach/hurd/mips/sigreturn.c (__sigreturn): Likewise.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler):
Use SS_DISABLE instead of SA_DISABLE. Use SS_ONSTACK instead of
SA_ONSTACK where appropriate.
* sysdeps/mach/hurd/alpha/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/hppa/trampoline.c (_hurd_setup_sighandler):
Likewise.
* sysdeps/mach/hurd/mips/trampoline.c (_hurd_setup_sighandler):
Likewise.
* manual/signal.texi (Signal Stack): Talk about SS_DISABLE and
SS_ONSTACK instead of SA_DISABLE and SA_ONSTACK in discussion of
the `ss_flags' member of `struct sigaltstack'.
1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/Makefile (routines) [$(versioning)=yes]: Add oldtmpfile.
(shared-only-routines): Likewise.
* libio/oldtmpfile.c: New file
* stdio-common/tmpfile.c: Use __fdopen and __close.
[USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen. Put
tmpfile on symbol version GLIBC_2.1.
* stdio-common/tmpfile64.c: Use __fdopen and __close.
[USE_IN_LIBIO]: Use _IO_fdopen instead of _IO_new_fdopen.
* stdio-common/Version [GLIBC_2.1]: Add tmpfile.
* stdio-common/tempnam.c: Use __strdup instead of strdup.
* sysdeps/posix/fdopen.c: Define __fdopen and make fdopen weak
alias.
* sysdeps/generic/fdopen.c: Likewise.
* sysdeps/mach/hurd/fdopen.c: Likewise.
* stdio/stdio.h: Declare __fdopen.
* sunrpc/openchild.c: Use __fdopen instead of fdopen.
[USE_IN_LIBIO]: Map __fdopen to _IO_fdopen.
* sysdeps/posix/tempname.c (__gen_tempname): Don't bother checking
__stub_open64, it is never defined.
1998-08-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libio/iofopen64.c: Fix typo. Avoid unnessary casts.
* libio/iopopen.c: Unlink file before freeing it if command
creation failed. Avoid unnessary casts.
* libio/iofdopen.c: Avoid unnecessary cast.
* pwd/fgetpwent_r.c [USE_IN_LIBIO]: Map funlockfile to
_IO_funlockfile.
* pwd/fgetspent_r.c [USE_IN_LIBIO]: Likewise.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* grp/grp.h, pwd/pwd.h: Don't declare __grpopen, __grpread,
__grpalloc, __grpscan and the corresponding pwd functions, they
were removed long ago.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c (csqrt_test): Adjust epsilons.
(casinh_test): Likewise.
1998-08-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* posix/globtest.sh: Fix typo. Remove second test output file.
1998-08-07 Cristian Gafton <gafton@redhat.com>
* pwd/putpwent.c (putpwent): Avoid writting (none) in the passwd file.
* shadow/putspent.c (putspent): Likewise.
* grp/putgrent.c: New file.
* grp/Makefile (routines): Add putgrent.
* grp/Versions [GLIBC_2.1]: Add putgrent.
* grp/grp.h: Add putgrent prototype.
1998-08-04 19:33 Ulrich Drepper <drepper@cygnus.com>
* elf/elf.h: More ELF definitions.
1998-08-03 16:36 Ulrich Drepper <drepper@cygnus.com>
* catgets/catgets.c: Use mmap/munmap only is _POSIX_MAPPED_FILES
is defined.
* catgets/open_catalog.c: Likewise.
* iconv/iconv_prog.c: Likewise.
* intl/loadmsgcat.c: Likewise.
* locale/findlocale.c: Likewise.
* locale/loadlocale.c: Likewise.
* locale/programs/localedef.c: Likewise.
* malloc/malloc.c: Likewise.
* elf/elf.h: Fix typo.
* math/Makefile: Use $(LN_S) instead of ln.
* sysdeps/generic/getpgid.c: Fix return type.
1998-08-01 02:49 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* sysdeps/posix/tempname.c (__stdio_gen_tempname): Rename to
__gen_tempname and simplify the interface. Strip out the
code to do path search and create FILE objects. This function
now takes a mktemp() style template and returns either a name
or a file descriptor.
(__path_search): New function; searches for directories for
temp files.
* sysdeps/generic/tempname.c: Stub out __gen_tempname and
__path_search, not __stdio_gen_tempname.
* libio/stdio.h: Prototype __gen_tempname and __path_search,
not __stdio_gen_tempname.
* stdio/stdio.h: Likewise.
* stdio-common/tempnam.c: Use __path_search and __gen_tempname.
* stdio-common/tmpfile.c: Likewise.
* stdio-common/tmpfile64.c: Likewise.
* stdio-common/tmpnam.c: Likewise.
* stdio-common/tmpnam_r.c: Likewise.
* misc/mkstemp.c: New file. Use __gen_tempname.
* misc/mktemp.c: Likewise.
* sysdeps/posix/mkstemp.c: Removed.
* sysdeps/posix/mktemp.c: Removed.
* sysdeps/generic/mkstemp.c: Removed.
* sysdeps/generic/mktemp.c: Removed.
1998-08-02 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* configure.in: Check, if door add-on is installed.
* config.make.in: Add have_doors.
* sunrpc/Makefile: Add HAVE_DOOR define.
* sunrpc/key_call.c: Add keyserv/door interface.
* sunrpc/svc_unix.c: Call setsockopt only if SO_PASSCRED is defined.
* sunrpc/clnt_unix.c: Likewise.
1998-08-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* inet/netinet/in.h (IN_CLASSC): Correct mask.
Reported by Ian Staniforth <I.Staniforth@sheffield.ac.uk> [fixes
PR libc/727].
1998-08-03 10:23 Ulrich Drepper <drepper@cygnus.com>
* misc/Makefile: Fix installation problem with --disable-shared.
* posix/Makefile: Likewise.
1998-08-02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* posix/regex.c (re_search_2): Optimize searching for anchored
pattern if '^' cannot match at embedded newlines.
(regerror): Renamed from __regerror, which it should only be
called if _LIBC.
1998-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sunrpc/svc_unix.c (__msgread): Check setsockopt return value.
1998-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/generic/glob.c: Remove obsolete cast.
1998-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Rules (tests): Fix last change.
1998-07-31 17:59 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/Makefile [subdir==misc] (sysdep_routines):
Add sys_setresuid.
1998-07-30 Mark Kettenis <kettenis@phys.uva.nl>
* sysdeps/unix/sysv/linux/syscalls.list: Add __syscall_setresuid
as real name for system call and make setresuid a weak alias. Set
caller to seteuid.
* sysdeps/unix/sysv/linux/seteuid.c (seteuid): Implement using
`setresuid' syscall if availble. Fixes problems with sendmail
which expects `seteuid' to not set the saved user ID.
1998-07-30 20:09 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* time/tzset.c (__tzstring): Get rid of excessive cleverness
which was causing stack corruption.
1998-07-31 16:41 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* argp/argp-fmtstream.c (__argp_fmtstream_update): Correct
off-by-one in wordwrap algorithm when there' a space at the
beginning of the buffer.
1998-07-31 15:45 Ulrich Drepper <drepper@cygnus.com>
* Makerules (LDLIBS-c.so): Extend value instead of overwriting it.
1998-07-31 11:10 Ulrich Drepper <drepper@cygnus.com>
* elf/elf.h: Add lots of new symbols from Irix and Solaris.
* sysdeps/unix/sysv/linux/sigstack.c: Include stddef.h to get NULL
definition.
1998-07-31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* sunrpc/xcrypt.c: Use only the first 8 characters of the password.
1998-07-30 21:06 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* sysdeps/generic/glob.c: Undefine strdup before defining it,
because bits/string2.h may have defined it already.
1998-07-29 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* stdio-common/vfscanf.c: Optimize looking for type modifiers.
Fix recognition of 'a' modifier vs. 'a' format.
(TYPEMOD): Removed.
* stdio-common/printf-parse.h (parse_one_spec): Optimize looking
for type modifiers. Fix recognition of 'hh' modifier.
1998-07-31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* sunrpc/svc_unix.c: Fix typo.
1998-07-31 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* sysdeps/unix/sysv/linux/recvmsg.c: Don't check for SCM_CREDS before
syscall.
Ulrich Drepper