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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.
This commit is contained in:
Ulrich Drepper 2004-08-05 23:32:24 +00:00
parent a79d752f3d
commit 87bb6b6c6b
16 changed files with 842 additions and 624 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
ChangeLog
View File

@ -1,13 +1,48 @@
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.
2004-08-05 Ulrich Drepper <drepper@redhat.com>
* 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/sv.po: Update from translation team.
* po/sk.po: Likewise.
* po/pl.po: Likewise.
2004-08-04 Jakub Jelinek <jakub@redhat.com>
Ulrich Drepper <drepper@redhat.com>
* wcsmbs/mbsrtowcs_l.c (__mbsrtowcs_l): Don't read more input
character than necessary.
characters than necessary.
2004-08-05 Ulrich Drepper <drepper@redhat.com>

12
hesiod/hesiod.c
View File

@ -448,10 +448,9 @@ __hesiod_res_get(void *context) {
if (!ctx->res) {
struct __res_state *res;
res = (struct __res_state *)malloc(sizeof *res);
res = (struct __res_state *)calloc(1, sizeof *res);
if (res == NULL)
return (NULL);
memset(res, 0, sizeof *res);
__hesiod_res_set(ctx, res, free);
}
@ -465,6 +464,12 @@ __hesiod_res_set(void *context, struct __res_state *res,
if (ctx->res && ctx->free_res) {
res_nclose(ctx->res);
if ((ctx->res->options & RES_INIT) && ctx->res->nscount > 0) {
for (int ns = 0; ns < MAXNS; ns++) {
free (ctx->res->_u._ext.nsaddrs[ns]);
ctx->res->_u._ext.nsaddrs[ns] = NULL;
}
}
(*ctx->free_res)(ctx->res);
}
@ -478,8 +483,7 @@ init(struct hesiod_p *ctx) {
if (!ctx->res && !__hesiod_res_get(ctx))
return (-1);
if (((ctx->res->options & RES_INIT) == 0) &&
(res_ninit(ctx->res) == -1))
if (__res_maybe_init (ctx->res, 0) == -1)
return (-1);
return (0);

2
include/resolv.h
View File

@ -31,6 +31,7 @@ extern struct __res_state _res;
/* Now define the internal interfaces. */
extern int __res_vinit (res_state, int);
extern int __res_maybe_init (res_state, int);
extern void _sethtent (int);
extern void _endhtent (void);
extern struct hostent *_gethtent (void);
@ -46,6 +47,7 @@ extern void res_send_setrhook (res_send_rhook __hook);
extern int res_ourserver_p (const res_state __statp,
const struct sockaddr_in6 *__inp);
libc_hidden_proto (__res_ninit)
libc_hidden_proto (__res_maybe_init)
libc_hidden_proto (__res_nclose)
libc_hidden_proto (__res_randomid)
libc_hidden_proto (__res_state)

2
nss/digits_dots.c
View File

@ -43,7 +43,7 @@ __nss_hostname_digits_dots (const char *name, struct hostent *resbuf,
/* We have to test for the use of IPv6 which can only be done by
examining `_res'. */
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
{
if (h_errnop)
*h_errnop = NETDB_INTERNAL;

2
nss/getXXbyYY_r.c
View File

@ -182,7 +182,7 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
#ifdef NEED__RES
/* The resolver code will really be used so we have to
initialize it. */
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
{
*h_errnop = NETDB_INTERNAL;
*result = NULL;

11
nss/getnssent_r.c
View File

@ -1,4 +1,4 @@
/* Copyright (C) 2000,02 Free Software Foundation, Inc.
/* Copyright (C) 2000, 2002, 2004 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
@ -60,8 +60,7 @@ __nss_setent (const char *func_name, db_lookup_function lookup_fct,
} fct;
int no_more;
if (res && (_res.options & RES_INIT) == 0
&& __res_ninit (&_res) == -1)
if (res && __res_maybe_init (&_res, 0) == -1)
{
__set_h_errno (NETDB_INTERNAL);
return;
@ -104,8 +103,7 @@ __nss_endent (const char *func_name, db_lookup_function lookup_fct,
} fct;
int no_more;
if (res && (_res.options & RES_INIT) == 0
&& __res_ninit (&_res) == -1)
if (res && __res_maybe_init (&_res, 0) == -1)
{
__set_h_errno (NETDB_INTERNAL);
return;
@ -145,8 +143,7 @@ __nss_getent_r (const char *getent_func_name,
int no_more;
enum nss_status status;
if (res && (_res.options & RES_INIT) == 0
&& __res_ninit (&_res) == -1)
if (res && __res_maybe_init (&_res, 0) == -1)
{
*h_errnop = NETDB_INTERNAL;
*result = NULL;

1289
po/pl.po
View File

File diff suppressed because it is too large Load Diff

2
resolv/Versions
View File

@ -38,6 +38,8 @@ libc {
# This version is for the TLS symbol, GLIBC_2.0 is the old object symbol.
h_errno; __resp;
%endif
__res_maybe_init;
}
}

8
resolv/gethnamaddr.c
View File

@ -493,10 +493,10 @@ gethostbyname(name)
{
struct hostent *hp;
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1) {
if (__res_maybe_init (&_res, 0) == -1) {
__set_h_errno (NETDB_INTERNAL);
return (NULL);
}
}
if (_res.options & RES_USE_INET6) {
hp = gethostbyname2(name, AF_INET6);
if (hp)
@ -522,7 +522,7 @@ gethostbyname2(name, af)
struct hostent *ret;
extern struct hostent *_gethtbyname2();
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1) {
if (__res_maybe_init (&_res, 0) == -1) {
__set_h_errno (NETDB_INTERNAL);
return (NULL);
}
@ -665,7 +665,7 @@ gethostbyaddr(addr, len, af)
#endif /*SUNSECURITY*/
extern struct hostent *_gethtbyaddr();
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1) {
if (__res_maybe_init (&_res, 0) == -1) {
__set_h_errno (NETDB_INTERNAL);
return (NULL);
}

4
resolv/nss_dns/dns-host.c
View File

@ -145,7 +145,7 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
int olderr = errno;
enum nss_status status;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
return NSS_STATUS_UNAVAIL;
switch (af) {
@ -263,7 +263,7 @@ _nss_dns_gethostbyaddr_r (const void *addr, socklen_t len, int af,
int n, status;
int olderr = errno;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
return NSS_STATUS_UNAVAIL;
if (af == AF_INET6 && len == IN6ADDRSZ

7
resolv/nss_dns/dns-network.c
View File

@ -1,4 +1,5 @@
/* Copyright (C) 1996, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -120,7 +121,7 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
char *qbuf;
enum nss_status status;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
return NSS_STATUS_UNAVAIL;
qbuf = strdupa (name);
@ -171,7 +172,7 @@ _nss_dns_getnetbyaddr_r (uint32_t net, int type, struct netent *result,
if (type != AF_INET)
return NSS_STATUS_UNAVAIL;
if ((_res.options & RES_INIT) == 0 && __res_ninit (&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
return NSS_STATUS_UNAVAIL;
net2 = (u_int32_t) net;

18
resolv/res_data.c
View File

@ -141,7 +141,7 @@ fp_query(const u_char *msg, FILE *file) {
void
fp_nquery(const u_char *msg, int len, FILE *file) {
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
return;
res_pquery(&_res, msg, len, file);
@ -157,7 +157,7 @@ res_mkquery(int op, /* opcode of query */
u_char *buf, /* buffer to put query */
int buflen) /* size of buffer */
{
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}
@ -169,7 +169,7 @@ res_mkquery(int op, /* opcode of query */
#ifdef BIND_UPDATE
int
res_mkupdate(ns_updrec *rrecp_in, u_char *buf, int buflen) {
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}
@ -184,7 +184,7 @@ res_query(const char *name, /* domain name */
u_char *answer, /* buffer to put answer */
int anslen) /* size of answer buffer */
{
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}
@ -208,7 +208,7 @@ res_isourserver(const struct sockaddr_in *inp) {
int
res_send(const u_char *buf, int buflen, u_char *ans, int anssiz) {
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
/* errno should have been set by res_init() in this case. */
return (-1);
}
@ -221,7 +221,7 @@ int
res_sendsigned(const u_char *buf, int buflen, ns_tsig_key *key,
u_char *ans, int anssiz)
{
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
/* errno should have been set by res_init() in this case. */
return (-1);
}
@ -249,7 +249,7 @@ res_close(void) {
#ifdef BIND_UPDATE
int
res_update(ns_updrec *rrecp_in) {
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}
@ -264,7 +264,7 @@ res_search(const char *name, /* domain name */
u_char *answer, /* buffer to put answer */
int anslen) /* size of answer */
{
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}
@ -279,7 +279,7 @@ res_querydomain(const char *name,
u_char *answer, /* buffer to put answer */
int anslen) /* size of answer */
{
if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
if (__res_maybe_init (&_res, 1) == -1) {
RES_SET_H_ERRNO(&_res, NETDB_INTERNAL);
return (-1);
}

4
resolv/res_init.c
View File

@ -161,6 +161,10 @@ __res_vinit(res_state statp, int preinit) {
#ifndef RFC1535
int dots;
#endif
#ifdef _LIBC
extern unsigned long long int __res_initstamp attribute_hidden;
statp->_u._ext.initstamp = __res_initstamp;
#endif
if (!preinit) {
statp->retrans = RES_TIMEOUT;

52
resolv/res_libc.c
View File

@ -15,16 +15,31 @@
* SOFTWARE.
*/
#include <limits.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <resolv.h>
#include <bits/libc-lock.h>
/* 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. */
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
int
res_init(void) {
extern int __res_vinit(res_state, int);
@ -70,8 +85,45 @@ res_init(void) {
if (!_res.id)
_res.id = res_randomid();
atomicinclock (lock);
/* Request all threads to re-initialize their resolver states,
resolv.conf might have changed. */
atomicinc (__res_initstamp);
atomicincunlock (lock);
return (__res_vinit(&_res, 1));
}
/* 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)
/* This needs to be after the use of _res in res_init, above. */
#undef _res

6
resolv/resolv.h
View File

@ -134,6 +134,12 @@ struct __res_state {
u_int16_t nscount6;
u_int16_t nsinit;
struct sockaddr_in6 *nsaddrs[MAXNS];
#ifdef _LIBC
unsigned long long int initstamp
__attribute__((packed));
#else
unsigned int _initstamp[2];
#endif
} _ext;
} _u;
};

10
sysdeps/posix/getaddrinfo.c
View File

@ -604,8 +604,12 @@ gaih_inet (const char *name, const struct gaih_service *service,
{
if (req->ai_family == AF_UNSPEC || req->ai_family == AF_INET6)
at->family = AF_INET6;
else if (IN6_IS_ADDR_V4MAPPED (at->addr))
*(uint32_t *) at->addr = ((uint32_t *) at->addr)[3];
else if (req->ai_family == AF_INET
&& IN6_IS_ADDR_V4MAPPED (at->addr))
{
*(uint32_t *) at->addr = ((uint32_t *) at->addr)[3];
at->family = AF_INET;
}
else
return -EAI_ADDRFAMILY;
@ -662,7 +666,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
no_more = __nss_database_lookup ("hosts", NULL,
"dns [!UNAVAIL=return] files", &nip);
if ((_res.options & RES_INIT) == 0 && __res_ninit(&_res) == -1)
if (__res_maybe_init (&_res, 0) == -1)
no_more = 1;
old_res_options = _res.options;
_res.options &= ~RES_USE_INET6;