Many callers of __res_maybe_init also call _res_hconf_init.
Additional calls to the latter do not hurt because the function
does its work only once. (/etc/hosts.conf is not reloaded or
even checked for changes.) This means that we can simplify the
code by calling _res_hconf_init directly from __res_vinit.
_res_hconf.initialized was not suitable for use in a multi-threaded
environment due to the lack of atomics and memory barriers. Use of it was
also unnecessary because _res_hconf_init did the right thing by using
__libc_once. This patch fixes the glibc-internal uses by just calling
_res_hconf_init unconditionally, and switches to a release MO atomic store
for _res_hconf.initialized to fix the glibc side of the synchronization
problem (which will maintain backward compatibility, but cannot fix the
lack of acquire MO on any glibc-external loads).
[BZ #20477]
* resolv/res_hconf.c (do_init): Use atomic access.
* resolv/res_hconf.h: Add comments.
* nscd/aicache.c (addhstaiX): Call _res_hconf_init unconditionally.
* nss/getXXbyYY_r.c (REENTRANT_NAME): Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/res_hconf.c: Remove 'order' parsing. Just ignore the line.
* resolv/res_hconf.h: Remove Name_Service definition.
(struct hconf): Replace service related fields with placeholders.
* version.h (VERSION): Bump to 2.4.90 for the trunk.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
1998-11-20 Ulrich Drepper <drepper@cygnus.com>
* aclocal.m4 (LIBC_PROG_BINUTILS): Also add AR and RANLIB using the
same method.
* configure.in: Don't define AR and RANLIB here.
* inet/gethstbyad_r.c: Define NEED__RES_HCONV and POSTPROCESS for
host name res_hconf code.
* inet/gethstbynm_r.c: Likewise.
* nss/getXXbyYY_r.c: Include resolv/res_hconf.h if NEED__RES_HCONF
is defined. Call res_hconf_init if necessary. If POSTPROCESS is
defined execute the code.
* resolv/Makefile (routines): Add res_hconf.
(headers): Add res_hconf.h.
* resolv/res_hconf.c: Pretty print.
* resolv/res_hconf.h: Likewise.
1998-11-20 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/generic/bits/byteswap.h: Fix typos in non-GCC
definitions. Reported by Scott Bambrough <scottb@corelcomputer.com>.
1998-11-20 1998 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* math/libm-test.c: Raise some epsilons a bit.
1998-11-20 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* Makeconfig ($(common-objpfx)sysd-sorted): Fix portability problems.
1998-11-20 Ulrich Drepper <drepper@cygnus.com>
* Makefile (distribute): Add scripts/gen-sorted.awk.
* stdlib/canonicalize.c: New file.
* stdlib/stdlib.h: Declare canonicalize_file_name, realpath.
* stdlib/Makefile (routines): Add canonicalize.
* posix/unistd.h: Declare __canonicalize_directory_name_internal.
Thu May 23 00:01:10 1996 Ulrich Drepper <drepper@cygnus.com>
* db/recno/rec_seq.c: Prevent `sccsid' definition by using the
same #if condition as in the other db files.
* intl/Makefile: Add -Wno-unused CFLAGS for compilation of
bindtextdom.c, finddomain.c, and localealias.c.
* intl/dcgettext.c: Don't define prototype for getcwd() when
compiling in glibc.
* libio/cleanup.c: Add prototype for _IO_register_cleanup.
* libio/filedoalloc.c, libio/fileops.c, libio/iopopen.c: Don't
define _POSIX_SOURCE unconditionally.
* libio/filedoalloc.c, libio/iopopen.c: Include <unistd.h> if
compiling in glibc.
* libio/fileops.c (_IO_file_close_it): Don't sync file, call
flush instead. This relaxes the rules from POSIX.1 about
changing the active handle a bit.
* libio/iofopncook.c (struct _IO_cookie_file): Move definition
into <libio.h>.
Add prototypes for local functions to prevent warnings.
* libio/iopopen.c: Change prototypes for _IO_fork, _IO_pipe, and
_IO_DUP2 to contain complete parameter list.
* libio/libio.h: Add definition of struct _IO_cookie_file.
* libio/libioP.h: Add prototypes for _IO_vasprintf, _IO_vdprintf,
and _IO_vsnprintf.
* libio/memstream.c: Include <stdio.h>.
* libio/stdio.h: Add prototypes for fopencookie,
__stdio_gen_tempname, __vfscanf, __vsscanf, and __vsnprintf.
* libio/strops.c: Avoid useless expression in `for' initializer.
* locale/findlocale.c: Add some casts to prevent warnings.
* locale/programs/locfile.c (write_locale_data): Don't use
double `/' in locale binary file.
* posix/unistd.h: Remove prototype for `reboot'.
Update from bind-4.9.4-T1A.
* resolv/Makefile (routines): Add inet_ntop and inet_pton.
* resolv/arpa/nameser.h: Add definition of IN6ADDRSZ.
* resolv/gethnamaddr.c, resolv/getnetnamadr.c, resolv/res_comp.c,
resolv/res_debug.c, resolv/res_init.c
* resolv/inet_ntop.c, resolv/inet_pton.c: New files.
* resolv/resolv.h: Add RES_USE_INET6 flag.
(__dn_isvalid): Renamed to __res_dnok.
Add prototypes for __res_ownok and __res_mailok.
* stdio-common/Makefile: Add -Wno-unused to CFLAGS for _itoa.c.
* stdio-common/getline.c, stdio-common/vfscanf.c,
sysdeps/posix/tempname.c: Don't use <ansidecl.h> anymore.
* sysdeps/unix/sysv/linux/Makefile [$subdir == misc]
(sysdep_routines): Add s_reboot.
(install-others): Add $(includedir)/sys/syscall.h.
New rule for $(includedir)/sys/syscall.h to produce from
<asm/unistd.h>.
* sysdeps/unix/sysv/linux/reboot.c: New file. Make single
argument function call 3 argument system call.
* sysdeps/unix/sysv/linux/sys/reboot.h: New file. Linux specific
definition for reboot function.
* sysdeps/unix/sysv/linux/syscall.h: Remove old and obsolete
comment.
* sysdeps/unix/sysv/linux/syscalls.list: Rename function for
reboot syscall to __syscall_reboot.
* wcsmbs/wchar.h: Protect prototypes for wcstof and wcstold by
__USE_GNU, not USE_GNU.
Tue May 21 21:55:49 1996 David Mosberger-Tang <davidm@AZStarNet.com>
* locale/programs/charset.c, locale/programs/ld-collate.c:
Add casts to prevent warnings on 64-bit machines.
* locale/programs/ld-monetary.c: Don't do unnecessary tests for
int_frac_digits and frac_digits which only produce warnings.
Mon May 13 23:45:29 1996 David Mosberger-Tang <davidm@AZStarNet.com>
* inet/arpa/inet.h: Backup return type of inet_addr to u_long.
* resolv/inet_addr.c: Likewise.
* resolv/Makefile (distribute): Add res_hconf.h
(routines): Add res_hconf.
* resolv/gethnamaddr.c: Add support for /etc/host.conf.
* resolv/res_init.c: Initialize /etc/host.conf reader.
* resolv/res_hconf.c, resolv/res_hconf.h: New files.
Implementation of reading /etc/host.conf.
Wed May 22 21:21:15 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* Rules (%.out rules): Prepend $($*-ENV) to the command.
* sysdeps/unix/sysv/linux/i386/brk.c (___brk_addr): Define as weak
alias for __curbrk.
Wed May 22 19:37:27 1996 Miles Bader <miles@gnu.ai.mit.edu>
* hurd/hurdexec.c (_hurd_exec): Pass INIT_TRACEMASK.
* hurd/hurdmsg.c (set_int): Support INIT_TRACEMASK.
Wed May 22 18:47:31 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/mach/hurd/getcwd.c
(_hurd_canonicalize_directory_name_internal): New function, broken out
of __getcwd.
(__getcwd): Use it.
(__canonicalize_directory_name_internal): New function using it.
* sysdeps/posix/getcwd.c (__canonicalize_directory_name_internal): New
function, broken out of __getcwd.
(__getcwd): Use it.
Wed May 22 18:14:05 1996 Miles Bader <miles@gnu.ai.mit.edu>
* string/argz-create.c (__argz_create): Correctly calculate length.
* string/argz-extract.c (__argz_extract): Add terminating 0 entry.
* hurd/hurdstartup.c (_hurd_startup): ... and don't so here.
[HAVE_VMSDIR_H]: Include "vmsdir.h".
(glob) [VMS]: Don't grok ~.
