glibc/resolv/res_init.c

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/* Resolver state initialization and resolv.conf parsing.
Copyright (C) 1995-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
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/*
* Copyright (c) 1985, 1989, 1993
* The Regents of the University of California. All rights reserved.
Update. * argp/argp-help.c: Unify use of function aliases to make more compact PLT. * include/libintl.h: Likewise. * inet/rcmd.c: Likewise. * intl/dcigettext.c: Likewise. * libio/iofputws.c: Likewise. * libio/iofputws_u.c: Likewise. * libio/iogetwline.c: Likewise. * libio/swprintf.c: Likewise. * malloc/malloc.c: Likewise. * nss/digits_dots.c: Likewise. * posix/fnmatch.c: Likewise. * posix/spawn_faction_addclose.c: Likewise. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Likewise. * posix/wordexp.c: Likewise. * posix/spawni.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_init.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sighold.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/printf-parse.h: Likewise. * stdio-common/printf-prs.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/rpmatch.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sysdeps/generic/setrlimit64.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/posix/posix_fallocate.c: Likewise. * sysdeps/posix/posix_fallocate64.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigset.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/bsd/ualarm.c: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/getloadavg.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * time/strftime.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * sysdeps/powerpc/fpu_control.h (_FPU_GETCW): Allow gcc to generate postinc/predec instruction.
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*
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* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
Update. * argp/argp-help.c: Unify use of function aliases to make more compact PLT. * include/libintl.h: Likewise. * inet/rcmd.c: Likewise. * intl/dcigettext.c: Likewise. * libio/iofputws.c: Likewise. * libio/iofputws_u.c: Likewise. * libio/iogetwline.c: Likewise. * libio/swprintf.c: Likewise. * malloc/malloc.c: Likewise. * nss/digits_dots.c: Likewise. * posix/fnmatch.c: Likewise. * posix/spawn_faction_addclose.c: Likewise. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Likewise. * posix/wordexp.c: Likewise. * posix/spawni.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_init.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sighold.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/printf-parse.h: Likewise. * stdio-common/printf-prs.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/rpmatch.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sysdeps/generic/setrlimit64.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/posix/posix_fallocate.c: Likewise. * sysdeps/posix/posix_fallocate64.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigset.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/bsd/ualarm.c: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/getloadavg.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * time/strftime.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * sysdeps/powerpc/fpu_control.h (_FPU_GETCW): Allow gcc to generate postinc/predec instruction.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
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*/
/*
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
Update. * argp/argp-help.c: Unify use of function aliases to make more compact PLT. * include/libintl.h: Likewise. * inet/rcmd.c: Likewise. * intl/dcigettext.c: Likewise. * libio/iofputws.c: Likewise. * libio/iofputws_u.c: Likewise. * libio/iogetwline.c: Likewise. * libio/swprintf.c: Likewise. * malloc/malloc.c: Likewise. * nss/digits_dots.c: Likewise. * posix/fnmatch.c: Likewise. * posix/spawn_faction_addclose.c: Likewise. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Likewise. * posix/wordexp.c: Likewise. * posix/spawni.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_init.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sighold.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/printf-parse.h: Likewise. * stdio-common/printf-prs.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/rpmatch.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sysdeps/generic/setrlimit64.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/posix/posix_fallocate.c: Likewise. * sysdeps/posix/posix_fallocate64.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigset.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/bsd/ualarm.c: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/getloadavg.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * time/strftime.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * sysdeps/powerpc/fpu_control.h (_FPU_GETCW): Allow gcc to generate postinc/predec instruction.
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*
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* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies, and that
* the name of Digital Equipment Corporation not be used in advertising or
* publicity pertaining to distribution of the document or software without
* specific, written prior permission.
Update. * argp/argp-help.c: Unify use of function aliases to make more compact PLT. * include/libintl.h: Likewise. * inet/rcmd.c: Likewise. * intl/dcigettext.c: Likewise. * libio/iofputws.c: Likewise. * libio/iofputws_u.c: Likewise. * libio/iogetwline.c: Likewise. * libio/swprintf.c: Likewise. * malloc/malloc.c: Likewise. * nss/digits_dots.c: Likewise. * posix/fnmatch.c: Likewise. * posix/spawn_faction_addclose.c: Likewise. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Likewise. * posix/wordexp.c: Likewise. * posix/spawni.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_init.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sighold.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/printf-parse.h: Likewise. * stdio-common/printf-prs.c: Likewise. * stdio-common/printf_fp.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/rpmatch.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sysdeps/generic/setrlimit64.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/posix/posix_fallocate.c: Likewise. * sysdeps/posix/posix_fallocate64.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/sigset.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/bsd/ualarm.c: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/getloadavg.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * time/strftime.c: Likewise. * wcsmbs/wcscoll.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * sysdeps/powerpc/fpu_control.h (_FPU_GETCW): Allow gcc to generate postinc/predec instruction.
2000-08-21 04:18:25 +00:00
*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
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*/
/*
* Portions Copyright (c) 1996-1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
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*/
#include <ctype.h>
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#include <netdb.h>
#include <resolv/resolv-internal.h>
#include <res_hconf.h>
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
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#include <stdio.h>
#include <stdio_ext.h>
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
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#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
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#include <arpa/inet.h>
#include <arpa/nameser.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/types.h>
#include <inet/net-internal.h>
#include <errno.h>
#include <resolv_conf.h>
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static uint32_t net_mask (struct in_addr);
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int
res_ninit (res_state statp)
{
return __res_vinit (statp, 0);
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
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}
Update. 2002-08-02 Ulrich Drepper <drepper@redhat.com> * configure.in (HAVE_BROKEN_ALIAS_ATTRIBUTE): Add check for broken alias attribute handling. * config.h.in (HAVE_BROKEN_ALIAS_ATTRIBUTE): Add. * assert/assert.c (__assert_fail): Fix typo in comment. * include/rpc/rpc.h: Declare __libc_tsd_RPC_VARS if USE_TLS && HAVE___THREAD. * sunrpc/rpc_thread.c: Don't define __libc_tsd_RPC_VARS as static if USE_TLS && HAVE___THREAD. * sunrpc/Versions [libc] (GLIBC_PRIVATE): Export __libc_tsd_RPC_VARS. 2002-08-02 Jakub Jelinek <jakub@redhat.com> * assert/assert.c (__assert_fail): Remove undef. Replace INTDEF with libc_hidden_def. * assert/__assert.c (__assert): Remove INTUSE. * elf/dl-minimal.c (__assert_fail): Replace INTDEF with libc_hidden_weak. * include/libc-symbols.h (hidden_proto, hidden_def, hidden_weak, hidden_ver, libc_hidden_proto, libc_hidden_def, libc_hidden_weak, libc_hidden_ver, rtld_hidden_proto, rtld_hidden_def, rtld_hidden_weak, rltd_hidden_ver, libm_hidden_proto, libm_hidden_def, libm_hidden_weak, libm_hiden_ver): Define. * include/assert.h (__assert_fail_internal): Remove. (__assert_fail): Add prototype. Add hidden_proto. * include/libc-internal.h (__libc_freeres, __profile_frequency): Add libc_hidden_proto. * include/wchar.h (__mbrtowc_internal, __mbrlen_internal): Remove. (__mbrtowc, __mbrlen): Use libc_hidden_proto. Remove macros. * include/string.h (__mempcpy, __stpncpy, __rawmemchr, __strcasecmp): Add libc_hidden_proto. * include/fcntl.h (__open64, __libc_open, __libc_fcntl, __open, __fcntl): Add libc_hidden_proto. Remove macros. (__open_internal, __fcntl_internal): Remove. * libio/iofdopen.c (_IO_fcntl): Remove INTUSE from __fcntl. * malloc/set-freeres.c (__libc_freeres): Add libc_hidden_def. * nss/nsswitch.h (__nss_database_lookup, __nss_next): Add libc_hiden_proto. * nss/nsswitch.c (__nss_database_lookup, __nss_next): Add libc_hidden_def. * sysdeps/generic/mempcpy.c (__mempcpy): Remove undef. Add libc_hidden_def. * sysdeps/generic/open64.c (__open64): Add libc_hidden_def. * sysdeps/generic/open.c (__open): Remove undef. Add libc_hidden_def. Remove INTDEF. * sysdeps/generic/fcntl.c (__fcntl): Remove undef. Add libc_hidden_def. * sysdeps/mach/hurd/fcntl.c (__fcntl): Likewise. * sysdeps/i386/i586/mempcpy.S (__mempcpy): Add libc_hidden_def. * sysdeps/i386/i686/mempcpy.S (__mempcpy): Likewise. * sysdeps/mach/hurd/fcntl.c (__libc_fcntl, __fcntl): Remove undef. (__fcntl): Remove INTDEF2. Add libc_hidden_weak. (__libc_fcntl): Add libc_hidden_def. * sysdeps/mach/hurd/open.c (__libc_open, __open): Remove undef. (__open): Remove INTDEF2. Add libc_hidden_weak. (__libc_open): Add libc_hidden_def. * sysdeps/posix/open64.c (__open64): Add libc_hidden_weak. * sysdeps/standalone/open.c (__open): Add libc_hidden_def. * sysdeps/unix/sysv/aix/fcntl.c (__libc_fcntl, __fcntl): Remove undef. Add libc_hidden_def. * sysdeps/unix/sysv/aix/open.c (__libc_open, __open): Remove undef. Add libc_hidden_def. * sysdeps/unix/sysv/linux/i386/fcntl.c (__libc_fcntl, __fcntl): Remove undef. (__fcntl): Remove INTDEF2. Add libc_hidden_weak. (__libc_fcntl): Add libc_hidden_def. * sysdeps/unix/sysv/linux/syscalls.list (__fcntl_internal, __getpgid_internal, __chown_internal): Remove. (__GI___fcntl, __GI___libc_fcntl, __GI___getpgid, __GI___pipe, __GI___sched_setscheduler, __GI___select, __GI___setpgid, __GI___chown): Add. * sysdeps/unix/syscalls.list (__close_internal, __dup2_internal, __getpid_internal, __open_internal, __write_internal): Remove. (__GI___fcntl, __GI___libc_fcntl, __GI___open, __GI___libc_open, __GI___chown, __GI___close, __GI___dup2, __GI___getpid, __GI___libc_open, __GI___open, __GI___read, __GI___libc_read, __GI___select, __GI___statfs, __GI___write, __GI___libc_write): Add. * wcsmbs/mbrlen.c (__mbrlen): Remove undef. Replace INTDEF with libc_hidden_def. * wcsmbs/mbrtowc.c (__mbrtowc): Likewise. * catgets/catgetsinfo.h (__open_catalog): Add libc_hidden_proto. * catgets/open_catalog.c (__open_catalog): Add libc_hidden_def. * elf/dl-profile.c (__profile_frequency): Add libc_hidden_proto. * include/rpc/rpc.h (__rpc_thread_svc_fdset, __rpc_thread_createerr): Add libc_hidden_proto. * include/sys/poll.h (__poll): Add libc_hidden_proto. * include/sys/select.h (__select): Likewise. * include/sys/socket.h (__send): Likewise. * include/sys/statfs.h (__statfs): Likewise. * include/unistd.h (__pwrite64, __libc_read, __pipe, __chown, __dup2, __getpid, __getpgid, __setpgid, __close, __read, __write, __getpagesize, __sbrk): Likewise. (__chown_internal, __dup2_internal, __getpid_internal, __getpgid_internal, __close_internal, __write_internal, __getpagesize_internal): Remove. (__close, __dup2, __getpagesize, __getpgid, __getpid, __libc_write): Remove macros. * include/printf.h (__printf_fp): Add libc_hidden_proto. * include/sched.h (__sched_setscheduler): Likewise. * include/resolv.h (__res_ninit, __res_randomid): Likewise. * include/stdlib.h (__secure_getenv): Likewise. * include/signal.h (__sigaction, __sigsuspend): Likewise. * inet/getaliasent_r.c (NSS_attribute_hidden): Remove. * inet/getaliasname_r.c (NSS_attribute_hidden): Remove. * inet/getnetbyad_r.c (NSS_attribute_hidden): Remove. * inet/getnetbynm_r.c (NSS_attribute_hidden): Remove. * inet/getnetent_r.c (NSS_attribute_hidden): Remove. * inet/getproto_r.c (NSS_attribute_hidden): Remove. * inet/getprtent_r.c (NSS_attribute_hidden): Remove. * inet/getprtname_r.c (NSS_attribute_hidden): Remove. * inet/getrpcbyname_r.c (NSS_attribute_hidden): Remove. * inet/getrpcbynumber_r.c (NSS_attribute_hidden): Remove. * inet/getrpcent_r.c (NSS_attribute_hidden): Remove. * inet/getservent_r.c (NSS_attribute_hidden): Remove. * inet/getsrvbynm_r.c (NSS_attribute_hidden): Remove. * inet/getsrvbypt_r.c (NSS_attribute_hidden): Remove. * inet/gethstbyad_r.c (DB_LOOKUP_FCT): Remove INTUSE. * inet/gethstbynm2_r.c (DB_LOOKUP_FCT): Likewise. * inet/gethstbynm_r.c (DB_LOOKUP_FCT): Likewise. * inet/gethstent_r.c (DB_LOOKUP_FCT): Likewise. * libio/genops.c (__overflow): Add libc_hidden_def. * libio/iovdprintf.c: Remove libio.h include. * libio/libioP.h (libc_hidden_proto, libc_hidden_def, libc_hidden_weak): Define to nothing if not defined. (__overflow, __woverflow): Add libc_hidden_proto. * libio/wgenops.c (__woverflow): Add libc_hidden_def. * nss/getXXent_r.c (NSS_attribute_hidden): Remove. (DB_LOOKUP_FCT): Add libc_hidden_proto. * nss/getXXbyYY_r.c (NSS_attribute_hidden): Remove. (DB_LOOKUP_FCT): Add libc_hidden_proto. * nss/XXX-lookup.c (DB_LOOKUP_FCT): Add libc_hidden_proto and libc_hidden_def. * nss/hosts-lookup.c (__nss_hosts_lookup): Remove INTDEF. * posix/bsd-getpgrp.c (__getpgid_internal): Remove. (__getpgid): Add libc_hidden_proto. (__bsd_getpgrp): Remove INTUSE. * resolv/res_init.c (__res_ninit, __res_randomid): Add libc_hidden_def. * shadow/getspent_r.c (NSS_attribute_hidden): Remove. * shadow/getspnam_r.c (NSS_attribute_hidden): Remove. * stdio-common/printf_fp.c (__printf_fp): Add libc_hidden_def. * stdlib/strfmon.c (__printf_fp): Add libc_hidden_proto. * stdlib/secure-getenv.c (__secure_getenv): Add libc_hidden_def. * sunrpc/rpc_thread.c (__rpc_thread_svc_fdset, __rpc_thread_createerr): Add libc_hidden_def. * sysdeps/alpha/alphaev67/rawmemchr.S (__rawmemchr): Add libc_hidden_def. * sysdeps/alpha/alphaev67/stpncpy.S (__stpncpy): Likewise. * sysdeps/alpha/rawmemchr.S (__rawmemchr): Likewise. * sysdeps/alpha/stpncpy.S (__stpncpy): Likewise. * sysdeps/generic/chown.c (__chown): Likewise. * sysdeps/generic/close.c (__close): Likewise. * sysdeps/generic/dup2.c (__dup2): Likewise. * sysdeps/generic/pipe.c (__pipe): Likewise. * sysdeps/generic/prof-freq.c (__profile_frequency): Likewise. * sysdeps/generic/pwrite64.c (__pwrite64): Likewise. * sysdeps/generic/rawmemchr.c (__rawmemchr): Likewise. * sysdeps/generic/read.c (__libc_read): Likewise. (__read): Add libc_hidden_weak. * sysdeps/generic/sbrk.c (__sbrk): Add libc_hidden_def. * sysdeps/generic/sched_sets.c (__sched_setscheduler): Likewise. * sysdeps/generic/select.c (__select): Likewise. * sysdeps/generic/send.c (__send): Likewise. * sysdeps/generic/setpgid.c (__setpgid): Likewise. * sysdeps/generic/sigaction.c (__sigaction): Likewise. * sysdeps/generic/sigsuspend.c (__sigsuspend): Likewise. * sysdeps/generic/statfs.c (__statfs): Likewise. * sysdeps/generic/stpncpy.c (__stpncpy): Likewise. * sysdeps/generic/strcasecmp.c (__strcasecmp): Likewise. * sysdeps/generic/getpagesize.c (__getpagesize): Likewise. Remove undef and INTDEF. * sysdeps/generic/getpgid.c (__getpgid): Likewise. * sysdeps/generic/getpid.c (__getpid): Likewise. * sysdeps/generic/write.c (__libc_write): Likewise. (__write): Add libc_hidden_weak. Remove undef and INTDEF. * sysdeps/i386/rawmemchr.S (__rawmemchr): Add libc_hidden_def. * sysdeps/i386/stpncpy.S (__stpncpy): Likewise. * sysdeps/m68k/rawmemchr.S (__rawmemchr): Likewise. * sysdeps/mach/hurd/chown.c (__chown): Likewise. Remove INTDEF. * sysdeps/mach/hurd/close.c (__close): Add libc_hidden_def. Remove undef and INTDEF. * sysdeps/mach/hurd/dup2.c (__dup2): Likewise. * sysdeps/mach/hurd/getpgid.c (__getpgid): Likewise. * sysdeps/mach/hurd/getpid.c (__getpid): Likewise. * sysdeps/mach/getpagesize.c (__getpagesize): Likewise. * sysdeps/mach/hurd/write.c (__libc_write): Likewise. (__write): Add libc_hidden_weak. Remove undef and INTDEF. * sysdeps/mach/hurd/pipe.c: Include unistd.h. (__pipe): Add libc_hidden_def. * sysdeps/mach/hurd/dl-sysdep.c (__libc_read, __libc_write): Add libc_hidden_weak. * sysdeps/mach/hurd/poll.c (__poll): Add libc_hidden_def. * sysdeps/mach/hurd/profil.c (__profile_frequency): Likewise. * sysdeps/mach/hurd/read.c (__libc_read): Likewise. (__read): Add libc_hidden_weak. * sysdeps/mach/hurd/pwrite64.c (__pwrite64): Likewise. (__libc_pwrite64): Add libc_hidden_def. * sysdeps/mach/hurd/sbrk.c (__sbrk): Likewise. * sysdeps/mach/hurd/select.c (__select): Likewise. * sysdeps/mach/hurd/send.c (__send): Likewise. * sysdeps/mach/hurd/setpgid.c (__setpgid): Likewise. * sysdeps/mach/hurd/sigaction.c (__sigaction): Likewise. * sysdeps/mach/hurd/sigsuspend.c (__sigsuspend): Likewise. * sysdeps/mach/hurd/statfs.c (__statfs): Likewise. * sysdeps/posix/dup2.c: Likewise. Remove undef and INTDEF. * sysdeps/posix/getpagesize.c (__getpagesize): Likewise. * sysdeps/posix/pwrite64.c (__libc_pwrite64): Add libc_hidden_def. (__pwrite64): Add libc_hidden_weak. * sysdeps/posix/sigsuspend.c (__sigsuspend): Add libc_hidden_def. * sysdeps/sparc/sparc64/rawmemchr.S (__rawmemchr): Likewise. * sysdeps/sparc/sparc64/stpncpy.S (__stpncpy): Likewise. * sysdeps/standalone/close.c (__close): Likewise. * sysdeps/standalone/write.c (__libc_write): Likewise. (__write): Add libc_hidden_weak. * sysdeps/standalone/read.c (__read): Likewise. (__libc_read): Add libc_hidden_def. * sysdeps/unix/grantpt.c (grantpt): Remove INTUSE. * sysdeps/unix/bsd/m68k/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/bsd/osf/alpha/pipe.S (__pipe): Likewise. * sysdeps/unix/bsd/vax/pipe.S (__pipe): Likewise. * sysdeps/unix/bsd/syscalls.list (__GI___getpagesize): Likewise. * sysdeps/unix/bsd/poll.c (__poll): Likewise. * sysdeps/unix/bsd/sigaction.c (__sigaction): Likewise. * sysdeps/unix/bsd/sigsuspend.c (__sigsuspend): Likewise. * sysdeps/unix/common/syscalls.list (__GI___getpgid, __GI___setpgid, __GI___sigaction): Add. * sysdeps/unix/i386/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/inet/syscalls.list (__GI___send): Add. * sysdeps/unix/mips/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/sparc/pipe.S (__pipe): Likewise. * sysdeps/unix/sysv/irix4/syscalls.list (__GI___getpgid, __GI___setpgid): Add. * sysdeps/unix/sysv/aix/chown.c (__chown): Add libc_hidden_def. Remove undef and INTDEF. * sysdeps/unix/sysv/aix/getpgid.c (__getpgid): Likewise. * sysdeps/unix/sysv/aix/write.c (__write, __libc_write): Likewise. * sysdeps/unix/sysv/aix/close.c (__close): Add libc_hidden_def. * sysdeps/unix/sysv/aix/getpid.c (__getpid): Likewise. * sysdeps/unix/sysv/aix/pipe.c (__pipe): Likewise. * sysdeps/unix/sysv/aix/read.c (__read, __libc_read): Likewise. * sysdeps/unix/sysv/aix/poll.c (__poll): Likewise. * sysdeps/unix/sysv/aix/sbrk.c (__sbrk): Likewise. * sysdeps/unix/sysv/aix/sigaction.c (__sigaction): Likewise. * sysdeps/unix/sysv/aix/sigsuspend.c (__sigsuspend): Likewise. * sysdeps/unix/sysv/aix/statfs.c (__statfs): Likewise. * sysdeps/unix/sysv/aix/select.c (__select): Likewise. * sysdeps/unix/sysv/aix/setpgid.c (__setpgid): Likewise. * sysdeps/unix/sysv/linux/alpha/pipe.S (__pipe): Likewise. * sysdeps/unix/sysv/linux/alpha/syscalls.list (__GI___pwrite64, __GI___statfs, __GI___send): Add. * sysdeps/unix/sysv/linux/alpha/select.S (__select): Add libc_hidden_ver resp. libc_hidden_def. * sysdeps/unix/sysv/linux/alpha/sigsuspend.S (__sigsuspend): Add libc_hidden_def. * sysdeps/unix/sysv/linux/ia64/getpagesize.c (__getpagesize): Likewise. Remove undef and INTDEF. * sysdeps/unix/sysv/linux/ia64/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/sysv/linux/ia64/syscalls.list (__GI___pwrite64, __GI___statfs, __GI___send): Add. * sysdeps/unix/sysv/linux/ia64/sigaction.c (__sigaction): Add libc_hidden_def. * sysdeps/unix/sysv/linux/ia64/sigsuspend.c (__sigsuspend): Likewise. * sysdeps/unix/sysv/linux/sh/pipe.S (__pipe): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/chown.c (__chown): Add libc_hidden_ver resp. libc_hidden_def. * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list (__GI___pwrite64, __GI___send): Add. * sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c (__sigsuspend): Add libc_hidden_def. * sysdeps/unix/sysv/linux/hppa/syscalls.list (__GI___send): Add. * sysdeps/unix/sysv/linux/arm/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/i386/chown.c (__chown): Add libc_hidden_ver resp. libc_hidden_def. * sysdeps/unix/sysv/linux/i386/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/m68k/chown.c (__chown): Likewise. Remove INTDEF. * sysdeps/unix/sysv/linux/m68k/getpagesize.c (__getpagesize): Likewise. Remove undef. * sysdeps/unix/sysv/linux/mips/pwrite64.c (__pwrite64): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/mips/syscalls.list (__GI___send): Add. * sysdeps/unix/sysv/linux/mips/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/powerpc/chown.c (__chown): Add libc_hidden_def. * sysdeps/unix/sysv/linux/powerpc/pwrite64.c (__pwrite64): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c (__getpagesize): Likewise. Remove undef and INTDEF. * sysdeps/unix/sysv/linux/sparc/sparc32/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S (__pipe): Add libc_hidden_def. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (__GI___pwrite64, __GI___statfs, __GI___select, __GI___send): Add. * sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c (__sigsuspend): Add libc_hidden_def. * sysdeps/unix/sysv/linux/x86_64/syscalls.list (__GI___pwrite64, __GI___statfs): Add. * sysdeps/unix/sysv/linux/x86_64/send.c (__send): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/x86_64/sigaction.c (__sigaction): Likewise. * sysdeps/unix/sysv/linux/getpagesize.c: Add libc_hidden_def. Remove undef and INTDEF. * sysdeps/unix/sysv/linux/poll.c (__poll): Add libc_hidden_def. * sysdeps/unix/sysv/linux/pwrite64.c (__pwrite64): Add libc_hidden_def. * sysdeps/unix/sysv/linux/send.S (__send): Likewise. * sysdeps/unix/sysv/linux/sigaction.c (__sigaction): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/sigsuspend.c (__sigsuspend): Add libc_hidden_def. * sysdeps/unix/sysv/sco3.2.4/__setpgid.c (__setpgid): Likewise. * sysdeps/unix/sysv/sco3.2.4/sigaction.S (__sigaction): Likewise. * sysdeps/unix/sysv/sysv4/solaris2/syscalls.list (__GI___sigaction): Add. * sysdeps/unix/sysv/sysv4/__getpgid.c (__getpgid): Add libc_hidden_def. Remove undef and INTDEF. * sysdeps/unix/sysv/sysv4/getpgid.c (__getpgid): Likewise. * sysdeps/unix/sysv/sysv4/__setpgid.c (__setpgid): Add libc_hidden_def. * sysdeps/unix/sysv/sysv4/setpgid.c (__setpgid): Likewise. * sysdeps/unix/sysv/sysv4/sigaction.c (__sigaction): Likewise. * sysdeps/unix/sysv/sigaction.c (__sigaction): Likewise. * sysdeps/unix/getpagesize.c (__getpagesize): Add libc_hidden_def. Remove undef and INTDEF. * configure.in (HAVE_BROKEN_VISIBILITY_ATTRIBUTE): Add check for broken visibility attribute handling. * config.h.in (HAVE_BROKEN_VISIBILITY_ATTRIBUTE): Add. 2002-08-02 Ulrich Drepper <drepper@redhat.com>
2002-08-03 07:02:10 +00:00
libc_hidden_def (__res_ninit)
Update. 1999-12-03 Andreas Jaeger <aj@suse.de> * nss/getXXbyYY.c: Include <resolv.h> (FUNCTION_NAME): Use res_ninit instead of res_init. * nss/getXXbyYY_r.c [NEED__RES]: Include <resolv.h> for _res declaration and prototypes. Remove extra _res declaration. (INTERNAL): Use thread aware res_ninit function. * inet/gethstbyad_r.c: Include <resolv.h>. * resolv/res_data.c: Update from Bind 8.2.2-P5. Moved res_init to res_libc.c. Disabled unneeded functions. * resolv/res_libc.c: New file. * Versions.def: Add version GLIBC_2.2 for libpthread. Add versions GLIBC_2.1 and GLIBC_2.2 for libresolv. * include/resolv.h: Add internal interfaces. * resolv/Makefile (routines): Add new files. (libresolv-routines): Likewise. (distribute): Likewise. * resolv/gethnamaddr.c: Use thread safe resolver functions. * resolv/nss_dns/dns-host.c: Likewise. * resolv/nss_dns/dns-network.c: Likewise. * resolv/arpa/nameser.h: Update from Bind 8.2.2-P5. * resolv/nsap_addr.c: Likewise. * resolv/res_comp.c: Likewise. * resolv/res_debug.c: Likewise. * resolv/res_init.c: Likewise. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_send.c: Likewise. * resolv/resolv.h: Likewise. * resolv/Versions: Add __res_state and __res_ninit with version GLIBC_2.2 to libc. Add new interfaces with version GLIBC_2.2 to libresolv. * resolv/Banner: Update. * include/arpa/nameser_compat.h: New file. * resolv/ns_name.c: New file from Bind 8.2.2-P5. * resolv/ns_netint.c: Likewise. * resolv/ns_parse.c: Likewise. * resolv/ns_print.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/arpa/nameser_compat.h: Likewise. * resolv/res_debug.h: Likewise. Some patches are based on work done by Adam D. Bradley <artdodge@cs.bu.edu>. * sysdeps/unix/sysv/linux/configure.in: Remove check for ldconfig, set always use_ldconfig instead.
1999-12-04 18:05:55 +00:00
/* Return true if CH separates the netmask in the "sortlist"
directive. */
static inline bool
is_sort_mask (char ch)
{
return ch == '/' || ch == '&';
}
/* Array of name server addresses. */
#define DYNARRAY_STRUCT nameserver_list
#define DYNARRAY_ELEMENT const struct sockaddr *
#define DYNARRAY_ELEMENT_FREE(e) free ((struct sockaddr *) *(e))
#define DYNARRAY_INITIAL_SIZE 3
#define DYNARRAY_PREFIX nameserver_list_
#include <malloc/dynarray-skeleton.c>
/* Array of strings for the search array. The backing store is
managed separately. */
#define DYNARRAY_STRUCT search_list
#define DYNARRAY_ELEMENT const char *
#define DYNARRAY_INITIAL_SIZE 6
#define DYNARRAY_PREFIX search_list_
#include <malloc/dynarray-skeleton.c>
/* Array of name server addresses. */
#define DYNARRAY_STRUCT sort_list
#define DYNARRAY_ELEMENT struct resolv_sortlist_entry
#define DYNARRAY_INITIAL_SIZE 0
#define DYNARRAY_PREFIX sort_list_
#include <malloc/dynarray-skeleton.c>
/* resolv.conf parser state and results. */
struct resolv_conf_parser
{
char *buffer; /* Temporary buffer for reading lines. */
struct nameserver_list nameserver_list; /* Nameserver addresses. */
char *search_list_store; /* Backing storage for search list entries. */
struct search_list search_list; /* Points into search_list_store. */
struct sort_list sort_list; /* Address preference sorting list. */
/* Configuration template. The non-array elements are filled in
directly. The array elements are updated prior to the call to
__resolv_conf_attach. */
struct resolv_conf template;
};
/* Return true if *PREINIT contains actual preinitialization. */
static bool
has_preinit_values (const struct __res_state *preinit)
{
return (preinit->retrans != 0 && preinit->retrans != RES_TIMEOUT)
|| (preinit->retry != 0 && preinit->retry != RES_DFLRETRY)
|| (preinit->options != 0
&& (preinit->options & ~RES_INIT) != RES_DEFAULT);
}
static void
resolv_conf_parser_init (struct resolv_conf_parser *parser,
const struct __res_state *preinit)
{
parser->buffer = NULL;
parser->search_list_store = NULL;
nameserver_list_init (&parser->nameserver_list);
search_list_init (&parser->search_list);
sort_list_init (&parser->sort_list);
if (preinit != NULL)
{
parser->template.retrans = preinit->retrans;
parser->template.retry = preinit->retry;
parser->template.options = preinit->options | RES_INIT;
}
else
{
parser->template.retrans = RES_TIMEOUT;
parser->template.retry = RES_DFLRETRY;
parser->template.options = RES_DEFAULT | RES_INIT;
}
parser->template.ndots = 1;
}
static void
resolv_conf_parser_free (struct resolv_conf_parser *parser)
{
free (parser->buffer);
free (parser->search_list_store);
nameserver_list_free (&parser->nameserver_list);
search_list_free (&parser->search_list);
sort_list_free (&parser->sort_list);
}
/* Allocate a struct sockaddr_in object on the heap, with the
specified address and port. */
static struct sockaddr *
allocate_address_v4 (struct in_addr a, uint16_t port)
{
struct sockaddr_in *sa4 = malloc (sizeof (*sa4));
if (sa4 == NULL)
return NULL;
sa4->sin_family = AF_INET;
sa4->sin_addr = a;
sa4->sin_port = htons (port);
return (struct sockaddr *) sa4;
}
/* Try to obtain the domain name from the host name and store it in
*RESULT. Return false on memory allocation failure. If the domain
name cannot be determined for any other reason, write NULL to
*RESULT and return true. */
static bool
domain_from_hostname (char **result)
{
char buf[256];
/* gethostbyname may not terminate the buffer. */
buf[sizeof (buf) - 1] = '\0';
if (__gethostname (buf, sizeof (buf) - 1) == 0)
{
char *dot = strchr (buf, '.');
if (dot != NULL)
{
*result = __strdup (dot + 1);
if (*result == NULL)
return false;
return true;
}
}
*result = NULL;
return true;
}
static void res_setoptions (struct resolv_conf_parser *, const char *options);
/* Internal helper function for __res_vinit, to aid with resource
deallocation and error handling. Return true on success, false on
failure. */
static bool
res_vinit_1 (FILE *fp, struct resolv_conf_parser *parser)
{
char *cp;
size_t buffer_size = 0;
bool haveenv = false;
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/* Allow user to override the local domain definition. */
if ((cp = getenv ("LOCALDOMAIN")) != NULL)
{
/* The code below splits the string in place. */
cp = __strdup (cp);
if (cp == NULL)
return false;
free (parser->search_list_store);
parser->search_list_store = cp;
haveenv = true;
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/* The string will be truncated as needed below. */
search_list_add (&parser->search_list, cp);
/* Set search list to be blank-separated strings from rest of
env value. Permits users of LOCALDOMAIN to still have a
search list, and anyone to set the one that they want to use
as an individual (even more important now that the rfc1535
stuff restricts searches). */
for (bool in_name = true; *cp != '\0'; cp++)
{
if (*cp == '\n')
{
*cp = '\0';
break;
}
else if (*cp == ' ' || *cp == '\t')
{
*cp = '\0';
in_name = false;
}
else if (!in_name)
{
search_list_add (&parser->search_list, cp);
in_name = true;
}
}
}
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#define MATCH(line, name) \
(!strncmp ((line), name, sizeof (name) - 1) \
&& ((line)[sizeof (name) - 1] == ' ' \
|| (line)[sizeof (name) - 1] == '\t'))
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if (fp != NULL)
{
/* No threads use this stream. */
__fsetlocking (fp, FSETLOCKING_BYCALLER);
/* Read the config file. */
while (true)
{
{
ssize_t ret = __getline (&parser->buffer, &buffer_size, fp);
if (ret <= 0)
{
if (_IO_ferror_unlocked (fp))
return false;
else
break;
}
}
/* Skip comments. */
if (*parser->buffer == ';' || *parser->buffer == '#')
continue;
/* Read default domain name. */
if (MATCH (parser->buffer, "domain"))
{
if (haveenv)
/* LOCALDOMAIN overrides the configuration file. */
continue;
cp = parser->buffer + sizeof ("domain") - 1;
while (*cp == ' ' || *cp == '\t')
cp++;
if ((*cp == '\0') || (*cp == '\n'))
continue;
cp = __strdup (cp);
if (cp == NULL)
return false;
free (parser->search_list_store);
parser->search_list_store = cp;
search_list_clear (&parser->search_list);
search_list_add (&parser->search_list, cp);
/* Replace trailing whitespace. */
if ((cp = strpbrk (cp, " \t\n")) != NULL)
*cp = '\0';
continue;
}
/* Set search list. */
if (MATCH (parser->buffer, "search"))
{
if (haveenv)
/* LOCALDOMAIN overrides the configuration file. */
continue;
cp = parser->buffer + sizeof ("search") - 1;
while (*cp == ' ' || *cp == '\t')
cp++;
if ((*cp == '\0') || (*cp == '\n'))
continue;
{
char *p = strchr (cp, '\n');
if (p != NULL)
*p = '\0';
}
cp = __strdup (cp);
if (cp == NULL)
return false;
free (parser->search_list_store);
parser->search_list_store = cp;
/* The string is truncated below. */
search_list_clear (&parser->search_list);
search_list_add (&parser->search_list, cp);
/* Set search list to be blank-separated strings on rest
of line. */
for (bool in_name = true; *cp != '\0'; cp++)
{
if (*cp == ' ' || *cp == '\t')
{
*cp = '\0';
in_name = false;
}
else if (!in_name)
{
search_list_add (&parser->search_list, cp);
in_name = true;
}
}
continue;
}
/* Read nameservers to query. */
if (MATCH (parser->buffer, "nameserver"))
{
struct in_addr a;
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cp = parser->buffer + sizeof ("nameserver") - 1;
while (*cp == ' ' || *cp == '\t')
cp++;
struct sockaddr *sa;
if ((*cp != '\0') && (*cp != '\n') && __inet_aton (cp, &a))
{
sa = allocate_address_v4 (a, NAMESERVER_PORT);
if (sa == NULL)
return false;
}
else
{
struct in6_addr a6;
char *el;
if ((el = strpbrk (cp, " \t\n")) != NULL)
*el = '\0';
if ((el = strchr (cp, SCOPE_DELIMITER)) != NULL)
*el = '\0';
if ((*cp != '\0') && (__inet_pton (AF_INET6, cp, &a6) > 0))
{
struct sockaddr_in6 *sa6;
sa6 = malloc (sizeof (*sa6));
if (sa6 == NULL)
return false;
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sa6->sin6_family = AF_INET6;
sa6->sin6_port = htons (NAMESERVER_PORT);
sa6->sin6_flowinfo = 0;
sa6->sin6_addr = a6;
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sa6->sin6_scope_id = 0;
if (__glibc_likely (el != NULL))
/* Ignore errors, for backwards
compatibility. */
__inet6_scopeid_pton
(&a6, el + 1, &sa6->sin6_scope_id);
sa = (struct sockaddr *) sa6;
}
else
/* IPv6 address parse failure. */
sa = NULL;
}
if (sa != NULL)
{
const struct sockaddr **p = nameserver_list_emplace
(&parser->nameserver_list);
if (p != NULL)
*p = sa;
else
{
free (sa);
return false;
}
}
continue;
}
if (MATCH (parser->buffer, "sortlist"))
{
struct in_addr a;
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cp = parser->buffer + sizeof ("sortlist") - 1;
while (true)
{
while (*cp == ' ' || *cp == '\t')
cp++;
if (*cp == '\0' || *cp == '\n' || *cp == ';')
break;
char *net = cp;
while (*cp && !is_sort_mask (*cp) && *cp != ';'
&& isascii (*cp) && !isspace (*cp))
cp++;
char separator = *cp;
*cp = 0;
struct resolv_sortlist_entry e;
if (__inet_aton (net, &a))
{
e.addr = a;
if (is_sort_mask (separator))
{
*cp++ = separator;
net = cp;
while (*cp && *cp != ';'
&& isascii (*cp) && !isspace (*cp))
cp++;
separator = *cp;
*cp = 0;
if (__inet_aton (net, &a))
e.mask = a.s_addr;
else
e.mask = net_mask (e.addr);
}
else
e.mask = net_mask (e.addr);
sort_list_add (&parser->sort_list, e);
}
*cp = separator;
}
continue;
}
if (MATCH (parser->buffer, "options"))
{
res_setoptions (parser, parser->buffer + sizeof ("options") - 1);
continue;
}
}
fclose (fp);
}
if (__glibc_unlikely (nameserver_list_size (&parser->nameserver_list) == 0))
{
const struct sockaddr **p
= nameserver_list_emplace (&parser->nameserver_list);
if (p == NULL)
return false;
*p = allocate_address_v4 (__inet_makeaddr (IN_LOOPBACKNET, 1),
NAMESERVER_PORT);
if (*p == NULL)
return false;
}
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if (search_list_size (&parser->search_list) == 0)
{
char *domain;
if (!domain_from_hostname (&domain))
return false;
if (domain != NULL)
{
free (parser->search_list_store);
parser->search_list_store = domain;
search_list_add (&parser->search_list, domain);
}
}
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if ((cp = getenv ("RES_OPTIONS")) != NULL)
res_setoptions (parser, cp);
if (nameserver_list_has_failed (&parser->nameserver_list)
|| search_list_has_failed (&parser->search_list)
|| sort_list_has_failed (&parser->sort_list))
{
__set_errno (ENOMEM);
return false;
}
return true;
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}
struct resolv_conf *
__resolv_conf_load (struct __res_state *preinit)
{
/* Ensure that /etc/hosts.conf has been loaded (once). */
_res_hconf_init ();
FILE *fp = fopen (_PATH_RESCONF, "rce");
if (fp == NULL)
switch (errno)
{
case EACCES:
case EISDIR:
case ELOOP:
case ENOENT:
case ENOTDIR:
case EPERM:
/* Ignore these errors. They are persistent errors caused
by file system contents. */
break;
default:
/* Other errors refer to resource allocation problems and
need to be handled by the application. */
return NULL;
}
struct resolv_conf_parser parser;
resolv_conf_parser_init (&parser, preinit);
struct resolv_conf *conf = NULL;
if (res_vinit_1 (fp, &parser))
{
parser.template.nameserver_list
= nameserver_list_begin (&parser.nameserver_list);
parser.template.nameserver_list_size
= nameserver_list_size (&parser.nameserver_list);
parser.template.search_list = search_list_begin (&parser.search_list);
parser.template.search_list_size
= search_list_size (&parser.search_list);
parser.template.sort_list = sort_list_begin (&parser.sort_list);
parser.template.sort_list_size = sort_list_size (&parser.sort_list);
conf = __resolv_conf_allocate (&parser.template);
}
resolv_conf_parser_free (&parser);
return conf;
}
/* Set up default settings. If the /etc/resolv.conf configuration
file exist, the values there will have precedence. Otherwise, the
server address is set to INADDR_LOOPBACK and the default domain
name comes from gethostname. The RES_OPTIONS and LOCALDOMAIN
environment variables can be used to override some settings.
Return 0 if completes successfully, -1 on error. */
int
__res_vinit (res_state statp, int preinit)
{
struct resolv_conf *conf;
if (preinit && has_preinit_values (statp))
/* For the preinit case, we cannot use the cached configuration
because some settings could be different. */
conf = __resolv_conf_load (statp);
else
conf = __resolv_conf_get_current ();
if (conf == NULL)
return -1;
bool ok = __resolv_conf_attach (statp, conf);
__resolv_conf_put (conf);
if (ok)
{
if (preinit)
statp->id = res_randomid ();
return 0;
}
else
return -1;
}
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static void
res_setoptions (struct resolv_conf_parser *parser, const char *options)
{
const char *cp = options;
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while (*cp)
{
/* Skip leading and inner runs of spaces. */
while (*cp == ' ' || *cp == '\t')
cp++;
/* Search for and process individual options. */
if (!strncmp (cp, "ndots:", sizeof ("ndots:") - 1))
{
int i = atoi (cp + sizeof ("ndots:") - 1);
if (i <= RES_MAXNDOTS)
parser->template.ndots = i;
else
parser->template.ndots = RES_MAXNDOTS;
}
else if (!strncmp (cp, "timeout:", sizeof ("timeout:") - 1))
{
int i = atoi (cp + sizeof ("timeout:") - 1);
if (i <= RES_MAXRETRANS)
parser->template.retrans = i;
else
parser->template.retrans = RES_MAXRETRANS;
}
else if (!strncmp (cp, "attempts:", sizeof ("attempts:") - 1))
{
int i = atoi (cp + sizeof ("attempts:") - 1);
if (i <= RES_MAXRETRY)
parser->template.retry = i;
else
parser->template.retry = RES_MAXRETRY;
}
else
{
static const struct
{
char str[22];
uint8_t len;
uint8_t clear;
unsigned long int flag;
} options[] = {
2011-05-30 02:07:49 +00:00
#define STRnLEN(str) str, sizeof (str) - 1
{ STRnLEN ("inet6"), 0, DEPRECATED_RES_USE_INET6 },
{ STRnLEN ("rotate"), 0, RES_ROTATE },
{ STRnLEN ("edns0"), 0, RES_USE_EDNS0 },
{ STRnLEN ("single-request-reopen"), 0, RES_SNGLKUPREOP },
{ STRnLEN ("single-request"), 0, RES_SNGLKUP },
{ STRnLEN ("no_tld_query"), 0, RES_NOTLDQUERY },
{ STRnLEN ("no-tld-query"), 0, RES_NOTLDQUERY },
{ STRnLEN ("no-reload"), 0, RES_NORELOAD },
{ STRnLEN ("use-vc"), 0, RES_USEVC }
};
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#define noptions (sizeof (options) / sizeof (options[0]))
for (int i = 0; i < noptions; ++i)
if (strncmp (cp, options[i].str, options[i].len) == 0)
{
if (options[i].clear)
parser->template.options &= options[i].flag;
else
parser->template.options |= options[i].flag;
break;
}
}
/* Skip to next run of spaces. */
while (*cp && *cp != ' ' && *cp != '\t')
cp++;
}
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}
static uint32_t
net_mask (struct in_addr in)
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{
uint32_t i = ntohl (in.s_addr);
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if (IN_CLASSA (i))
return htonl (IN_CLASSA_NET);
else if (IN_CLASSB (i))
return htonl (IN_CLASSB_NET);
return htonl (IN_CLASSC_NET);
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}