1999-12-04 18:05:55 +00:00
|
|
|
|
/*
|
|
|
|
|
* Copyright (c) 1995-1999 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.
|
|
|
|
|
*/
|
|
|
|
|
|
Update.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
memset.
(__hesiod_res_set): Free nsaddrs.
* include/resolv.h (__res_maybe_init): Add prototype.
* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
* resolv/res_libc.c (__res_initstamp, lock): New variables.
(res_init): Increase __res_initstamp.
(__res_maybe_init): New function.
* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Likewise.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Likewise.
* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
gethostbyaddr): Likewise.
* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
res_isourserver, res_sendsigned, res_update, res_search,
res_querydomain): Likewise.
* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
V4-mapped IPv6 addresses and req->ai_family==AF_INET.
Reported by A. Guru <a.guru@sympatico.ca>.
* po/pl.po: Likewise.
characters than necessary.
2004-08-05 23:32:24 +00:00
|
|
|
|
#include <limits.h>
|
1999-12-04 18:05:55 +00:00
|
|
|
|
#include <sys/types.h>
|
|
|
|
|
#include <netinet/in.h>
|
|
|
|
|
#include <arpa/nameser.h>
|
|
|
|
|
#include <resolv.h>
|
Update.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
memset.
(__hesiod_res_set): Free nsaddrs.
* include/resolv.h (__res_maybe_init): Add prototype.
* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
* resolv/res_libc.c (__res_initstamp, lock): New variables.
(res_init): Increase __res_initstamp.
(__res_maybe_init): New function.
* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Likewise.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Likewise.
* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
gethostbyaddr): Likewise.
* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
res_isourserver, res_sendsigned, res_update, res_search,
res_querydomain): Likewise.
* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
V4-mapped IPv6 addresses and req->ai_family==AF_INET.
Reported by A. Guru <a.guru@sympatico.ca>.
* po/pl.po: Likewise.
characters than necessary.
2004-08-05 23:32:24 +00:00
|
|
|
|
#include <bits/libc-lock.h>
|
1999-12-04 18:05:55 +00:00
|
|
|
|
|
|
|
|
|
|
Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org>
Update resolver code to BIND 8.2.3-T5B.
* resolv/Versions [GLIBC_2.2] (libc): Add __res_init and
__res_nclose.
[GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename,
__res_mkquery, __res_nsend, __res_query, __res_querydomain and
__res_search.
* resolv/Banner: BIND-8.2.3-T5B.
* resolv/base64.c: Update from BIND 8.2.3-T5B.
* resolv/herror.c: Likewise.
* resolv/inet_addr.c: Likewise.
* resolv/inet_net_ntop.c: Likewise.
* resolv/inet_net_pton.c: Likewise.
* resolv/inet_neta.c: Likewise.
* resolv/inet_ntop.c: Likewise.
* resolv/nsap_addr.c: Likewise.
* resolv/inet_pton.c: Likewise. Reject a few more more invalid
IPv6 addresses (ISC bug #520).
* resolv/ns_name.c: Avoid emitting RCS ID in object file.
* resolv/ns_parse.c: Likewise.
* resolv/ns_netint.c: Likewise.
* resolv/ns_samedomain.c: Likewise.
* resolv/ns_ttl.c: Likewise.
* resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting
RCS ID in object file.
* resolv/res_debug.c: Update from BIND 8.2.3-T5B.
* resolv/res_mkquery.c: Likewise.
* resolv/res_query.c: Likewise.
* resolv/res_init.c: Likewise.
(res_setoptions): Mark internal.
* resolv/res_send.c: Likewise.
[_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit
by using poll instead.
* resolv/res_comp.c: Likewise.
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a
weak alias for __dn_expand.
* resolv/res_data.c: Likewise.
(res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set
in _res.options. Avoids a potential security risk by avoiding a
close (0).
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make
res_mkquery, res_query, res_querydomain adn res_search weak
aliases for __res_mkquery, __res_query, __res_querydomain and
__res_search.
* resolv/res_libc.c: (_res): Don't initialize. Fix res_close
instead to avoid close(0).
(res_init): Always use the static resolver context.
[SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak
alias for __res_init.
* resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of
RES_SET_H_ERRNO and accompanying comment to...
* include/resolv.h: ... here.
* resolv/arpa/namser.h: Update from BIND 8.2.3-T5B.
* resolv/arpa/nameser_compat.h: Likewise.
2000-07-19 22:03:58 +00:00
|
|
|
|
/* The following bit is copied from res_data.c (where it is #ifdef'ed
|
|
|
|
|
out) since res_init() should go into libc.so but the rest of that
|
|
|
|
|
file should not. */
|
1999-12-04 18:05:55 +00:00
|
|
|
|
|
Update.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
memset.
(__hesiod_res_set): Free nsaddrs.
* include/resolv.h (__res_maybe_init): Add prototype.
* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
* resolv/res_libc.c (__res_initstamp, lock): New variables.
(res_init): Increase __res_initstamp.
(__res_maybe_init): New function.
* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Likewise.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Likewise.
* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
gethostbyaddr): Likewise.
* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
res_isourserver, res_sendsigned, res_update, res_search,
res_querydomain): Likewise.
* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
V4-mapped IPv6 addresses and req->ai_family==AF_INET.
Reported by A. Guru <a.guru@sympatico.ca>.
* po/pl.po: Likewise.
characters than necessary.
2004-08-05 23:32:24 +00:00
|
|
|
|
unsigned long long int __res_initstamp attribute_hidden;
|
|
|
|
|
/* We have atomic increment operations on 64-bit platforms. */
|
|
|
|
|
#if __WORDSIZE == 64
|
|
|
|
|
# define atomicinclock(lock) (void) 0
|
|
|
|
|
# define atomicincunlock(lock) (void) 0
|
|
|
|
|
# define atomicinc(var) atomic_increment (&(var))
|
|
|
|
|
#else
|
|
|
|
|
__libc_lock_define_initialized (static, lock);
|
|
|
|
|
# define atomicinclock(lock) __libc_lock_lock (lock)
|
|
|
|
|
# define atomicincunlock(lock) __libc_lock_unlock (lock)
|
|
|
|
|
# define atomicinc(var) ++var
|
|
|
|
|
#endif
|
|
|
|
|
|
1999-12-04 18:05:55 +00:00
|
|
|
|
int
|
|
|
|
|
res_init(void) {
|
|
|
|
|
extern int __res_vinit(res_state, int);
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* These three fields used to be statically initialized. This made
|
|
|
|
|
* it hard to use this code in a shared library. It is necessary,
|
|
|
|
|
* now that we're doing dynamic initialization here, that we preserve
|
|
|
|
|
* the old semantics: if an application modifies one of these three
|
|
|
|
|
* fields of _res before res_init() is called, res_init() will not
|
|
|
|
|
* alter them. Of course, if an application is setting them to
|
|
|
|
|
* _zero_ before calling res_init(), hoping to override what used
|
|
|
|
|
* to be the static default, we can't detect it and unexpected results
|
|
|
|
|
* will follow. Zero for any of these fields would make no sense,
|
|
|
|
|
* so one can safely assume that the applications were already getting
|
|
|
|
|
* unexpected results.
|
|
|
|
|
*
|
|
|
|
|
* _res.options is tricky since some apps were known to diddle the bits
|
|
|
|
|
* before res_init() was first called. We can't replicate that semantic
|
|
|
|
|
* with dynamic initialization (they may have turned bits off that are
|
|
|
|
|
* set in RES_DEFAULT). Our solution is to declare such applications
|
|
|
|
|
* "broken". They could fool us by setting RES_INIT but none do (yet).
|
|
|
|
|
*/
|
|
|
|
|
if (!_res.retrans)
|
|
|
|
|
_res.retrans = RES_TIMEOUT;
|
|
|
|
|
if (!_res.retry)
|
|
|
|
|
_res.retry = 4;
|
|
|
|
|
if (!(_res.options & RES_INIT))
|
|
|
|
|
_res.options = RES_DEFAULT;
|
2004-07-21 18:30:11 +00:00
|
|
|
|
else if (_res.nscount > 0) {
|
|
|
|
|
__res_nclose (&_res); /* Close any VC sockets. */
|
|
|
|
|
|
|
|
|
|
for (int ns = 0; ns < MAXNS; ns++) {
|
|
|
|
|
free (_res._u._ext.nsaddrs[ns]);
|
|
|
|
|
_res._u._ext.nsaddrs[ns] = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-12-04 18:05:55 +00:00
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* This one used to initialize implicitly to zero, so unless the app
|
|
|
|
|
* has set it to something in particular, we can randomize it now.
|
|
|
|
|
*/
|
|
|
|
|
if (!_res.id)
|
|
|
|
|
_res.id = res_randomid();
|
|
|
|
|
|
Update.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
memset.
(__hesiod_res_set): Free nsaddrs.
* include/resolv.h (__res_maybe_init): Add prototype.
* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
* resolv/res_libc.c (__res_initstamp, lock): New variables.
(res_init): Increase __res_initstamp.
(__res_maybe_init): New function.
* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Likewise.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Likewise.
* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
gethostbyaddr): Likewise.
* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
res_isourserver, res_sendsigned, res_update, res_search,
res_querydomain): Likewise.
* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
V4-mapped IPv6 addresses and req->ai_family==AF_INET.
Reported by A. Guru <a.guru@sympatico.ca>.
* po/pl.po: Likewise.
characters than necessary.
2004-08-05 23:32:24 +00:00
|
|
|
|
atomicinclock (lock);
|
|
|
|
|
/* Request all threads to re-initialize their resolver states,
|
|
|
|
|
resolv.conf might have changed. */
|
|
|
|
|
atomicinc (__res_initstamp);
|
|
|
|
|
atomicincunlock (lock);
|
|
|
|
|
|
1999-12-04 18:05:55 +00:00
|
|
|
|
return (__res_vinit(&_res, 1));
|
|
|
|
|
}
|
Update.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
* hesiod/hesiod.c (__hesiod_res_get): Use calloc instead of malloc +
memset.
(__hesiod_res_set): Free nsaddrs.
* include/resolv.h (__res_maybe_init): Add prototype.
* resolv/resolv.h (struct __res_state): Add _u._ext.initstamp field.
* resolv/Versions (libc): Add __res_maybe_init@@GLIBC_PRIVATE.
* resolv/res_libc.c (__res_initstamp, lock): New variables.
(res_init): Increase __res_initstamp.
(__res_maybe_init): New function.
* resolv/res_init.c (__res_vinit): Initialize _u._ext.initstamp.
* hesiod/hesiod.c (__hesiod_res_get): Use __res_maybe_init instead
of RES_INIT check and {res_ninit,__res_ninit,res_init} call.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Likewise.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Likewise.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Likewise.
* resolv/gethnamaddr.c (gethostbyname, gethostbyname2,
gethostbyaddr): Likewise.
* resolv/res_data.c (fp_nquery, res_mkquery, res_mkupdate,
res_isourserver, res_sendsigned, res_update, res_search,
res_querydomain): Likewise.
* nss/getXXbyYY_r.c (INTERNAL (REENTRANT_NAME)): Likewise.
* nss/digits_dots.c (__nss_hostname_digits_dots): Likewise.
* nss/getnssent_r.c (__nss_setent, __nss_endent, __nss_getent_r):
Likewise.
* sysdeps/posix/getaddrinfo.c (gaih_inet): Set ai_family for
V4-mapped IPv6 addresses and req->ai_family==AF_INET.
Reported by A. Guru <a.guru@sympatico.ca>.
* po/pl.po: Likewise.
characters than necessary.
2004-08-05 23:32:24 +00:00
|
|
|
|
|
|
|
|
|
/* Initialize resp if RES_INIT is not yet set or if res_init in some other
|
|
|
|
|
thread requested re-initializing. */
|
|
|
|
|
int
|
|
|
|
|
__res_maybe_init (res_state resp, int preinit)
|
|
|
|
|
{
|
|
|
|
|
if (resp->options & RES_INIT) {
|
|
|
|
|
if (__res_initstamp != resp->_u._ext.initstamp) {
|
|
|
|
|
if (resp->nscount > 0) {
|
|
|
|
|
__res_nclose (resp);
|
|
|
|
|
for (int ns = 0; ns < MAXNS; ns++) {
|
|
|
|
|
free (resp->_u._ext.nsaddrs[ns]);
|
|
|
|
|
resp->_u._ext.nsaddrs[ns] = NULL;
|
|
|
|
|
}
|
|
|
|
|
return __res_vinit (resp, 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return 0;
|
|
|
|
|
} else if (preinit) {
|
|
|
|
|
if (!resp->retrans)
|
|
|
|
|
resp->retrans = RES_TIMEOUT;
|
|
|
|
|
if (!resp->retry)
|
|
|
|
|
resp->retry = 4;
|
|
|
|
|
resp->options = RES_DEFAULT;
|
|
|
|
|
if (!resp->id)
|
|
|
|
|
resp->id = res_randomid ();
|
|
|
|
|
return __res_vinit (resp, 1);
|
|
|
|
|
} else
|
|
|
|
|
return __res_ninit (resp);
|
|
|
|
|
}
|
|
|
|
|
libc_hidden_def (__res_maybe_init)
|
Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org>
Update resolver code to BIND 8.2.3-T5B.
* resolv/Versions [GLIBC_2.2] (libc): Add __res_init and
__res_nclose.
[GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename,
__res_mkquery, __res_nsend, __res_query, __res_querydomain and
__res_search.
* resolv/Banner: BIND-8.2.3-T5B.
* resolv/base64.c: Update from BIND 8.2.3-T5B.
* resolv/herror.c: Likewise.
* resolv/inet_addr.c: Likewise.
* resolv/inet_net_ntop.c: Likewise.
* resolv/inet_net_pton.c: Likewise.
* resolv/inet_neta.c: Likewise.
* resolv/inet_ntop.c: Likewise.
* resolv/nsap_addr.c: Likewise.
* resolv/inet_pton.c: Likewise. Reject a few more more invalid
IPv6 addresses (ISC bug #520).
* resolv/ns_name.c: Avoid emitting RCS ID in object file.
* resolv/ns_parse.c: Likewise.
* resolv/ns_netint.c: Likewise.
* resolv/ns_samedomain.c: Likewise.
* resolv/ns_ttl.c: Likewise.
* resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting
RCS ID in object file.
* resolv/res_debug.c: Update from BIND 8.2.3-T5B.
* resolv/res_mkquery.c: Likewise.
* resolv/res_query.c: Likewise.
* resolv/res_init.c: Likewise.
(res_setoptions): Mark internal.
* resolv/res_send.c: Likewise.
[_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit
by using poll instead.
* resolv/res_comp.c: Likewise.
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a
weak alias for __dn_expand.
* resolv/res_data.c: Likewise.
(res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set
in _res.options. Avoids a potential security risk by avoiding a
close (0).
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make
res_mkquery, res_query, res_querydomain adn res_search weak
aliases for __res_mkquery, __res_query, __res_querydomain and
__res_search.
* resolv/res_libc.c: (_res): Don't initialize. Fix res_close
instead to avoid close(0).
(res_init): Always use the static resolver context.
[SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak
alias for __res_init.
* resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of
RES_SET_H_ERRNO and accompanying comment to...
* include/resolv.h: ... here.
* resolv/arpa/namser.h: Update from BIND 8.2.3-T5B.
* resolv/arpa/nameser_compat.h: Likewise.
2000-07-19 22:03:58 +00:00
|
|
|
|
|
2002-12-30 00:10:07 +00:00
|
|
|
|
/* This needs to be after the use of _res in res_init, above. */
|
|
|
|
|
#undef _res
|
|
|
|
|
|
2003-02-07 20:46:55 +00:00
|
|
|
|
/* The resolver state for use by single-threaded programs.
|
|
|
|
|
This differs from plain `struct __res_state _res;' in that it doesn't
|
|
|
|
|
create a common definition, but a plain symbol that resides in .bss,
|
|
|
|
|
which can have an alias. */
|
|
|
|
|
struct __res_state _res __attribute__((section (".bss")));
|
2002-12-30 00:10:07 +00:00
|
|
|
|
|
2003-07-22 23:10:17 +00:00
|
|
|
|
#include <tls.h>
|
|
|
|
|
|
|
|
|
|
#if USE___THREAD
|
|
|
|
|
#undef __resp
|
|
|
|
|
__thread struct __res_state *__resp = &_res;
|
|
|
|
|
extern __thread struct __res_state *__libc_resp
|
|
|
|
|
__attribute__ ((alias ("__resp"))) attribute_hidden;
|
|
|
|
|
#endif
|
|
|
|
|
|
2002-12-30 00:10:07 +00:00
|
|
|
|
/* We declare this with compat_symbol so that it's not
|
|
|
|
|
visible at link time. Programs must use the accessor functions. */
|
2003-07-22 23:10:17 +00:00
|
|
|
|
#if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
|
|
|
|
|
# include <shlib-compat.h>
|
2002-12-30 00:10:07 +00:00
|
|
|
|
compat_symbol (libc, _res, _res, GLIBC_2_0);
|
|
|
|
|
#endif
|
1999-12-04 18:05:55 +00:00
|
|
|
|
|
Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org>
Update resolver code to BIND 8.2.3-T5B.
* resolv/Versions [GLIBC_2.2] (libc): Add __res_init and
__res_nclose.
[GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename,
__res_mkquery, __res_nsend, __res_query, __res_querydomain and
__res_search.
* resolv/Banner: BIND-8.2.3-T5B.
* resolv/base64.c: Update from BIND 8.2.3-T5B.
* resolv/herror.c: Likewise.
* resolv/inet_addr.c: Likewise.
* resolv/inet_net_ntop.c: Likewise.
* resolv/inet_net_pton.c: Likewise.
* resolv/inet_neta.c: Likewise.
* resolv/inet_ntop.c: Likewise.
* resolv/nsap_addr.c: Likewise.
* resolv/inet_pton.c: Likewise. Reject a few more more invalid
IPv6 addresses (ISC bug #520).
* resolv/ns_name.c: Avoid emitting RCS ID in object file.
* resolv/ns_parse.c: Likewise.
* resolv/ns_netint.c: Likewise.
* resolv/ns_samedomain.c: Likewise.
* resolv/ns_ttl.c: Likewise.
* resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting
RCS ID in object file.
* resolv/res_debug.c: Update from BIND 8.2.3-T5B.
* resolv/res_mkquery.c: Likewise.
* resolv/res_query.c: Likewise.
* resolv/res_init.c: Likewise.
(res_setoptions): Mark internal.
* resolv/res_send.c: Likewise.
[_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit
by using poll instead.
* resolv/res_comp.c: Likewise.
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a
weak alias for __dn_expand.
* resolv/res_data.c: Likewise.
(res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set
in _res.options. Avoids a potential security risk by avoiding a
close (0).
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make
res_mkquery, res_query, res_querydomain adn res_search weak
aliases for __res_mkquery, __res_query, __res_querydomain and
__res_search.
* resolv/res_libc.c: (_res): Don't initialize. Fix res_close
instead to avoid close(0).
(res_init): Always use the static resolver context.
[SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak
alias for __res_init.
* resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of
RES_SET_H_ERRNO and accompanying comment to...
* include/resolv.h: ... here.
* resolv/arpa/namser.h: Update from BIND 8.2.3-T5B.
* resolv/arpa/nameser_compat.h: Likewise.
2000-07-19 22:03:58 +00:00
|
|
|
|
#include <shlib-compat.h>
|
1999-12-30 08:09:32 +00:00
|
|
|
|
|
Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org>
Update resolver code to BIND 8.2.3-T5B.
* resolv/Versions [GLIBC_2.2] (libc): Add __res_init and
__res_nclose.
[GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename,
__res_mkquery, __res_nsend, __res_query, __res_querydomain and
__res_search.
* resolv/Banner: BIND-8.2.3-T5B.
* resolv/base64.c: Update from BIND 8.2.3-T5B.
* resolv/herror.c: Likewise.
* resolv/inet_addr.c: Likewise.
* resolv/inet_net_ntop.c: Likewise.
* resolv/inet_net_pton.c: Likewise.
* resolv/inet_neta.c: Likewise.
* resolv/inet_ntop.c: Likewise.
* resolv/nsap_addr.c: Likewise.
* resolv/inet_pton.c: Likewise. Reject a few more more invalid
IPv6 addresses (ISC bug #520).
* resolv/ns_name.c: Avoid emitting RCS ID in object file.
* resolv/ns_parse.c: Likewise.
* resolv/ns_netint.c: Likewise.
* resolv/ns_samedomain.c: Likewise.
* resolv/ns_ttl.c: Likewise.
* resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting
RCS ID in object file.
* resolv/res_debug.c: Update from BIND 8.2.3-T5B.
* resolv/res_mkquery.c: Likewise.
* resolv/res_query.c: Likewise.
* resolv/res_init.c: Likewise.
(res_setoptions): Mark internal.
* resolv/res_send.c: Likewise.
[_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit
by using poll instead.
* resolv/res_comp.c: Likewise.
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a
weak alias for __dn_expand.
* resolv/res_data.c: Likewise.
(res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set
in _res.options. Avoids a potential security risk by avoiding a
close (0).
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make
res_mkquery, res_query, res_querydomain adn res_search weak
aliases for __res_mkquery, __res_query, __res_querydomain and
__res_search.
* resolv/res_libc.c: (_res): Don't initialize. Fix res_close
instead to avoid close(0).
(res_init): Always use the static resolver context.
[SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak
alias for __res_init.
* resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of
RES_SET_H_ERRNO and accompanying comment to...
* include/resolv.h: ... here.
* resolv/arpa/namser.h: Update from BIND 8.2.3-T5B.
* resolv/arpa/nameser_compat.h: Likewise.
2000-07-19 22:03:58 +00:00
|
|
|
|
#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2)
|
|
|
|
|
# undef res_init
|
2003-01-03 22:32:41 +00:00
|
|
|
|
extern int __res_init_weak (void);
|
2001-02-12 20:21:47 +00:00
|
|
|
|
weak_extern (__res_init_weak);
|
2003-01-03 22:32:41 +00:00
|
|
|
|
strong_alias (__res_init, __res_init_weak);
|
2001-02-12 20:21:47 +00:00
|
|
|
|
compat_symbol (libc, __res_init_weak, res_init, GLIBC_2_0);
|
Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org>
Update resolver code to BIND 8.2.3-T5B.
* resolv/Versions [GLIBC_2.2] (libc): Add __res_init and
__res_nclose.
[GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename,
__res_mkquery, __res_nsend, __res_query, __res_querydomain and
__res_search.
* resolv/Banner: BIND-8.2.3-T5B.
* resolv/base64.c: Update from BIND 8.2.3-T5B.
* resolv/herror.c: Likewise.
* resolv/inet_addr.c: Likewise.
* resolv/inet_net_ntop.c: Likewise.
* resolv/inet_net_pton.c: Likewise.
* resolv/inet_neta.c: Likewise.
* resolv/inet_ntop.c: Likewise.
* resolv/nsap_addr.c: Likewise.
* resolv/inet_pton.c: Likewise. Reject a few more more invalid
IPv6 addresses (ISC bug #520).
* resolv/ns_name.c: Avoid emitting RCS ID in object file.
* resolv/ns_parse.c: Likewise.
* resolv/ns_netint.c: Likewise.
* resolv/ns_samedomain.c: Likewise.
* resolv/ns_ttl.c: Likewise.
* resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting
RCS ID in object file.
* resolv/res_debug.c: Update from BIND 8.2.3-T5B.
* resolv/res_mkquery.c: Likewise.
* resolv/res_query.c: Likewise.
* resolv/res_init.c: Likewise.
(res_setoptions): Mark internal.
* resolv/res_send.c: Likewise.
[_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit
by using poll instead.
* resolv/res_comp.c: Likewise.
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a
weak alias for __dn_expand.
* resolv/res_data.c: Likewise.
(res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set
in _res.options. Avoids a potential security risk by avoiding a
close (0).
[SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make
res_mkquery, res_query, res_querydomain adn res_search weak
aliases for __res_mkquery, __res_query, __res_querydomain and
__res_search.
* resolv/res_libc.c: (_res): Don't initialize. Fix res_close
instead to avoid close(0).
(res_init): Always use the static resolver context.
[SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak
alias for __res_init.
* resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of
RES_SET_H_ERRNO and accompanying comment to...
* include/resolv.h: ... here.
* resolv/arpa/namser.h: Update from BIND 8.2.3-T5B.
* resolv/arpa/nameser_compat.h: Likewise.
2000-07-19 22:03:58 +00:00
|
|
|
|
#endif
|