* nscd/Makefile (nscd-modules): Replace gethstbynm2_r with

gethstbynm3_r.
	* nscd/gethstbynm2_r.c: Remove.
	* nscd/gethstbynm3_r.c: New file.
	* nscd/aicache.c (addhstaiX): Use __gethostbyaddr2_r instead of
	__gethostbyaddr_r.
	* nscd/gethstbyad_r.c: Generate __gethostbyaddr2_r function.  Define
	__gethostbyaddr_r compatibility wrapper.
	* nscd/hstcache.c (cache_addhst): Add ttl parameter.  Use it when
	determining timeout of entry.
	(lookup): Take new parameter and pass it to __gethostbyname3_r and
	__gethostbyaddr2_r.
	(addhstbyX): Pass reference to variable for TTL to lookup and
	cache_addhst.
	* nss/Versions [glibc] (GLIBC_PRIVATE): Export __nss_passwd_lookup2,
	__nss_group_lookup2, __nss_hosts_lookup2, __nss_services_lookup2,
	and __nss_next2.  Remove __nss_services_lookup.
	* nss/XXX-lookup.c: Name function now *_lookup2.  Add new parameter.
	Add compat wrapper.
	* nss/getXXbyYY_r.c: Changes to call new *_lookup2 functions and
	__nss_next2.
	* nss/getXXent_r.c: Likewise.
	* nss/getnssent_r.c: Likewise.
	* nss/nsswitch.c (__nss_lookup): Add new parameter.  If first function
	does not exist in module, try the optional second name.
	(__nss_next2): New function.
	(__nss_next): Now wrapper around __nss_next2.
	* nss/nsswitch.h: Adjust __nss_lookup prototype.
	Declare __nss_next2.
	Adjust definition of db_lookup_function type.
	* nss/service-lookup.c: Define NO_COMPAT.
	* include/netdb.h: Declare __gethostbyaddr2_r and __gethostbyname3_r.
	* inet/ether_hton.c: Use __nss_next2 instead of __nss_next.
	* inet/ether_ntoh.c: Likewise.
	* sunrpc/netname.c: Likewise.
	* sunrpc/publickey.c: Likewise.
	* inet/getnetgrent.c: Likewise.  Adjust calls to __nss_lookup.
	* inet/gethstbyad_r.c (DB_LOOKUP_FCT): Change to __nss_hosts_lookup2.
	* inet/gethstbynm2_r.c (DB_LOOKUP_FCT): Likewise.
	* inet/gethstbynm_r.c (DB_LOOKUP_FCT): Likewise.
	* inet/gethstent_r.c (DB_LOOKUP_FCT): Likewise.

	* nscd/aicache.c (addhstaiX): Fix default TTL handling.

	* inet/getnetgrent.c (setup): Encrypt static pointer.
This commit is contained in:
Ulrich Drepper 2007-10-30 00:48:09 +00:00
parent 53bab260f5
commit 384ca55174
23 changed files with 252 additions and 97 deletions

View File

@ -1,3 +1,51 @@
2007-10-29 Ulrich Drepper <drepper@redhat.com>
* nscd/Makefile (nscd-modules): Replace gethstbynm2_r with
gethstbynm3_r.
* nscd/gethstbynm2_r.c: Remove.
* nscd/gethstbynm3_r.c: New file.
* nscd/aicache.c (addhstaiX): Use __gethostbyaddr2_r instead of
__gethostbyaddr_r.
* nscd/gethstbyad_r.c: Generate __gethostbyaddr2_r function. Define
__gethostbyaddr_r compatibility wrapper.
* nscd/hstcache.c (cache_addhst): Add ttl parameter. Use it when
determining timeout of entry.
(lookup): Take new parameter and pass it to __gethostbyname3_r and
__gethostbyaddr2_r.
(addhstbyX): Pass reference to variable for TTL to lookup and
cache_addhst.
* nss/Versions [glibc] (GLIBC_PRIVATE): Export __nss_passwd_lookup2,
__nss_group_lookup2, __nss_hosts_lookup2, __nss_services_lookup2,
and __nss_next2. Remove __nss_services_lookup.
* nss/XXX-lookup.c: Name function now *_lookup2. Add new parameter.
Add compat wrapper.
* nss/getXXbyYY_r.c: Changes to call new *_lookup2 functions and
__nss_next2.
* nss/getXXent_r.c: Likewise.
* nss/getnssent_r.c: Likewise.
* nss/nsswitch.c (__nss_lookup): Add new parameter. If first function
does not exist in module, try the optional second name.
(__nss_next2): New function.
(__nss_next): Now wrapper around __nss_next2.
* nss/nsswitch.h: Adjust __nss_lookup prototype.
Declare __nss_next2.
Adjust definition of db_lookup_function type.
* nss/service-lookup.c: Define NO_COMPAT.
* include/netdb.h: Declare __gethostbyaddr2_r and __gethostbyname3_r.
* inet/ether_hton.c: Use __nss_next2 instead of __nss_next.
* inet/ether_ntoh.c: Likewise.
* sunrpc/netname.c: Likewise.
* sunrpc/publickey.c: Likewise.
* inet/getnetgrent.c: Likewise. Adjust calls to __nss_lookup.
* inet/gethstbyad_r.c (DB_LOOKUP_FCT): Change to __nss_hosts_lookup2.
* inet/gethstbynm2_r.c (DB_LOOKUP_FCT): Likewise.
* inet/gethstbynm_r.c (DB_LOOKUP_FCT): Likewise.
* inet/gethstent_r.c (DB_LOOKUP_FCT): Likewise.
* nscd/aicache.c (addhstaiX): Fix default TTL handling.
* inet/getnetgrent.c (setup): Encrypt static pointer.
2007-10-28 Ulrich Drepper <drepper@redhat.com>
[BZ #5204]

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@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1999, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1999, 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -71,7 +71,7 @@ ether_hostton (const char *hostname, struct ether_addr *addr)
status = (*fct.f) (hostname, &etherent, buffer, sizeof buffer, &errno);
no_more = __nss_next (&nip, "gethostton_r", &fct.ptr, status, 0);
no_more = __nss_next2 (&nip, "gethostton_r", NULL, &fct.ptr, status, 0);
}
if (status == NSS_STATUS_SUCCESS)

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1999, 2001, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996,1997,1999,2001,2002,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -72,7 +72,7 @@ ether_ntohost (char *hostname, const struct ether_addr *addr)
status = (*fct.f) (addr, &etherent, buffer, sizeof buffer, &errno);
no_more = __nss_next (&nip, "getntohost_r", &fct.ptr, status, 0);
no_more = __nss_next2 (&nip, "getntohost_r", NULL, &fct.ptr, status, 0);
}
if (status == NSS_STATUS_SUCCESS)

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
/* Copyright (C) 1996-2000,2002,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -48,6 +48,6 @@
}
/* Special name for the lookup function. */
#define DB_LOOKUP_FCT __nss_hosts_lookup
#define DB_LOOKUP_FCT __nss_hosts_lookup2
#include "../nss/getXXbyYY_r.c"

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -41,6 +41,6 @@
#define HAVE_AF 1
/* Special name for the lookup function. */
#define DB_LOOKUP_FCT __nss_hosts_lookup
#define DB_LOOKUP_FCT __nss_hosts_lookup2
#include "../nss/getXXbyYY_r.c"

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1998, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 1998, 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -40,6 +40,6 @@
#define HAVE_LOOKUP_BUFFER 1
/* Special name for the lookup function. */
#define DB_LOOKUP_FCT __nss_hosts_lookup
#define DB_LOOKUP_FCT __nss_hosts_lookup2
#include "../nss/getXXbyYY_r.c"

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 2002, 2007 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
@ -30,6 +30,6 @@
#define NEED__RES 1
/* Special name for the lookup function. */
#define DB_LOOKUP_FCT __nss_hosts_lookup
#define DB_LOOKUP_FCT __nss_hosts_lookup2
#include "../nss/getXXent_r.c"

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2004, 2005
/* Copyright (C) 1996, 1997, 1998, 1999, 2002, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -18,13 +18,16 @@
02111-1307 USA. */
#include <assert.h>
#include <atomic.h>
#include <bits/libc-lock.h>
#include <errno.h>
#include <netdb.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include "netgroup.h"
#include "nsswitch.h"
#include <sysdep.h>
/* Protect above variable against multiple uses at the same time. */
@ -44,25 +47,32 @@ static int
setup (void **fctp, service_user **nipp)
{
/* Remember the first service_entry, it's always the same. */
static bool startp_initialized;
static service_user *startp;
int no_more;
if (startp == NULL)
if (!startp_initialized)
{
/* Executing this more than once at the same time must yield the
same result every time. So we need no locking. */
no_more = __nss_netgroup_lookup (nipp, "setnetgrent", fctp);
startp = no_more ? (service_user *) -1 : *nipp;
PTR_MANGLE (startp);
atomic_write_barrier ();
startp_initialized = true;
}
else if (startp == (service_user *) -1)
/* No services at all. */
return 1;
else
{
service_user *nip = startp;
PTR_DEMANGLE (nip);
if (nip == (service_user *) -1)
/* No services at all. */
return 1;
/* Reset to the beginning of the service list. */
*nipp = startp;
*nipp = nip;
/* Look up the first function. */
no_more = __nss_lookup (nipp, "setnetgrent", fctp);
no_more = __nss_lookup (nipp, "setnetgrent", NULL, fctp);
}
return no_more;
}
@ -122,11 +132,12 @@ __internal_setnetgrent_reuse (const char *group, struct __netgrent *datap,
{
assert (datap->data == NULL);
/* Ignore status, we force check in `__nss_next'. */
/* Ignore status, we force check in `__nss_next2'. */
status = (*fct.f) (group, datap);
service_user *old_nip = datap->nip;
no_more = __nss_next (&datap->nip, "setnetgrent", &fct.ptr, status, 0);
no_more = __nss_next2 (&datap->nip, "setnetgrent", NULL, &fct.ptr,
status, 0);
if (status == NSS_STATUS_SUCCESS && ! no_more)
{
@ -423,8 +434,8 @@ innetgr (const char *netgroup, const char *host, const char *user,
break;
/* Look for the next service. */
no_more = __nss_next (&entry.nip, "setnetgrent",
&setfct.ptr, status, 0);
no_more = __nss_next2 (&entry.nip, "setnetgrent", NULL,
&setfct.ptr, status, 0);
}
if (result == 0 && entry.needed_groups != NULL)

View File

@ -32,7 +32,7 @@ include ../Makeconfig
vpath %.c ../locale/programs
nscd-modules := nscd connections pwdcache getpwnam_r getpwuid_r grpcache \
getgrnam_r getgrgid_r hstcache gethstbyad_r gethstbynm2_r \
getgrnam_r getgrgid_r hstcache gethstbyad_r gethstbynm3_r \
getsrvbynm_r getsrvbypt_r servicescache \
dbg_log nscd_conf nscd_stat cache mem nscd_setup_thread \
xmalloc xstrdup aicache initgrcache gai res_hconf
@ -106,7 +106,7 @@ CFLAGS-getgrnam_r.c += $(nscd-cflags)
CFLAGS-getgrgid_r.c += $(nscd-cflags)
CFLAGS-hstcache.c += $(nscd-cflags)
CFLAGS-gethstbyad_r.c += $(nscd-cflags)
CFLAGS-gethstbynm2_r.c += $(nscd-cflags)
CFLAGS-gethstbynm3_r.c += $(nscd-cflags)
CFLAGS-dbg_log.c += $(nscd-cflags)
CFLAGS-nscd_conf.c += $(nscd-cflags)
CFLAGS-nscd_stat.c += $(nscd-cflags)

View File

@ -110,7 +110,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
size_t tmpbuf4len = 0;
char *tmpbuf4 = NULL;
char *canon = NULL;
int32_t ttl = UINT32_MAX;
int32_t ttl = INT32_MAX;
ssize_t total = 0;
char *key_copy = NULL;
bool alloca_used = false;
@ -163,7 +163,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
rc4 = 0;
status[1] = DL_CALL_FCT (fct, (key, AF_INET, &th[1], tmpbuf4,
tmpbuf4len, &rc4, &herrno,
ttl == UINT32_MAX ? &ttl : NULL,
ttl == INT32_MAX ? &ttl : NULL,
canon == NULL ? &canon : NULL));
if (rc4 != ERANGE || herrno != NETDB_INTERNAL)
break;
@ -233,9 +233,9 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
int rc;
while (1)
{
rc = __gethostbyaddr_r (addr, addrlen, addrfamily,
&he_mem, tmpbuf, tmpbuflen,
&he, &herrno);
rc = __gethostbyaddr2_r (addr, addrlen, addrfamily,
&he_mem, tmpbuf, tmpbuflen,
&he, &herrno, NULL);
if (rc != ERANGE || herrno != NETDB_INTERNAL)
break;
tmpbuf = extend_alloca (tmpbuf, tmpbuflen,
@ -285,7 +285,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
dataset->head.usable = true;
/* Compute the timeout time. */
dataset->head.timeout = time (NULL) + MIN (db->postimeout, ttl);
dataset->head.timeout = time (NULL) + (ttl == INT32_MAX
? db->postimeout : ttl);
dataset->resp.version = NSCD_VERSION;
dataset->resp.found = 1;

View File

@ -20,12 +20,25 @@
#define LOOKUP_TYPE struct hostent
#define FUNCTION_NAME gethostbyaddr
#define FUNCTION_NAME gethostbyaddr2
#define FUNCTION2_NAME gethostbyaddr
#define DATABASE_NAME hosts
#define ADD_PARAMS const void *addr, socklen_t len, int type
#define EXTRA_PARAMS , int32_t *ttlp
#define ADD_VARIABLES addr, len, type
#define EXTRA_VARIABLES , ttlp
#define NEED_H_ERRNO 1
#define NEED__RES 1
#define NEED__RES_HCONF 1
#include "../nss/getXXbyYY_r.c"
int
__gethostbyaddr_r (const void *addr, socklen_t len, int type,
struct hostent *result_buf, char *buf, size_t buflen,
struct hostent **result, int *h_errnop)
{
return __gethostbyaddr2_r (addr, len, type, result_buf, buf, buflen,
result, h_errnop, NULL);
}

View File

@ -25,10 +25,13 @@
#define LOOKUP_TYPE struct hostent
#define FUNCTION_NAME gethostbyname2
#define FUNCTION_NAME gethostbyname3
#define FUNCTION2_NAME gethostbyname2
#define DATABASE_NAME hosts
#define ADD_PARAMS const char *name, int af
#define EXTRA_PARAMS , int32_t *ttlp, char **canonp
#define ADD_VARIABLES name, af
#define EXTRA_VARIABLES , ttlp, canonp
#define NEED_H_ERRNO 1
#define NEED__RES_HCONF 1
@ -39,3 +42,12 @@
#define __inet_aton inet_aton
#include "../nss/getXXbyYY_r.c"
int
__gethostbyname2_r (const char *name, int af, struct hostent *ret, char *buf,
size_t buflen, struct hostent **result, int *h_errnop)
{
return __gethostbyname3_r (name, af, ret, buf, buflen, result, h_errnop,
NULL, NULL);
}

View File

@ -80,7 +80,8 @@ static const hst_response_header notfound =
static void
cache_addhst (struct database_dyn *db, int fd, request_header *req,
const void *key, struct hostent *hst, uid_t owner,
struct hashentry *he, struct datahead *dh, int errval)
struct hashentry *he, struct datahead *dh, int errval,
int32_t ttl)
{
ssize_t total;
ssize_t written;
@ -131,7 +132,8 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
dataset->head.usable = true;
/* Compute the timeout time. */
dataset->head.timeout = t + db->negtimeout;
dataset->head.timeout = t + (ttl == INT32_MAX
? db->negtimeout : ttl);
/* This is the reply. */
memcpy (&dataset->resp, &notfound, total);
@ -247,7 +249,7 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
dataset->head.usable = true;
/* Compute the timeout time. */
dataset->head.timeout = t + db->postimeout;
dataset->head.timeout = t + (ttl == INT32_MAX ? db->postimeout : ttl);
dataset->resp.version = NSCD_VERSION;
dataset->resp.found = 1;
@ -423,19 +425,19 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
static int
lookup (int type, void *key, struct hostent *resultbufp, char *buffer,
size_t buflen, struct hostent **hst)
size_t buflen, struct hostent **hst, int32_t *ttlp)
{
if (type == GETHOSTBYNAME)
return __gethostbyname2_r (key, AF_INET, resultbufp, buffer, buflen, hst,
&h_errno);
return __gethostbyname3_r (key, AF_INET, resultbufp, buffer, buflen, hst,
&h_errno, ttlp, NULL);
if (type == GETHOSTBYNAMEv6)
return __gethostbyname2_r (key, AF_INET6, resultbufp, buffer, buflen, hst,
&h_errno);
return __gethostbyname3_r (key, AF_INET6, resultbufp, buffer, buflen, hst,
&h_errno, ttlp, NULL);
if (type == GETHOSTBYADDR)
return __gethostbyaddr_r (key, NS_INADDRSZ, AF_INET, resultbufp, buffer,
buflen, hst, &h_errno);
return __gethostbyaddr_r (key, NS_IN6ADDRSZ, AF_INET6, resultbufp, buffer,
buflen, hst, &h_errno);
return __gethostbyaddr2_r (key, NS_INADDRSZ, AF_INET, resultbufp, buffer,
buflen, hst, &h_errno, ttlp);
return __gethostbyaddr2_r (key, NS_IN6ADDRSZ, AF_INET6, resultbufp, buffer,
buflen, hst, &h_errno, ttlp);
}
@ -453,6 +455,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
struct hostent *hst;
bool use_malloc = false;
int errval = 0;
int32_t ttl = INT32_MAX;
if (__builtin_expect (debug_level > 0, 0))
{
@ -470,7 +473,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
dbg_log (_("Reloading \"%s\" in hosts cache!"), (char *) str);
}
while (lookup (req->type, key, &resultbuf, buffer, buflen, &hst) != 0
while (lookup (req->type, key, &resultbuf, buffer, buflen, &hst, &ttl) != 0
&& h_errno == NETDB_INTERNAL
&& (errval = errno) == ERANGE)
{
@ -504,7 +507,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
}
cache_addhst (db, fd, req, key, hst, uid, he, dh,
h_errno == TRY_AGAIN ? errval : 0);
h_errno == TRY_AGAIN ? errval : 0, ttl);
if (use_malloc)
free (buffer);

View File

@ -9,7 +9,10 @@ libc {
}
GLIBC_PRIVATE {
_nss_files_parse_grent; _nss_files_parse_pwent; _nss_files_parse_spent;
__nss_disable_nscd; __nss_lookup_function; __nss_services_lookup;
__nss_disable_nscd; __nss_lookup_function;
__nss_passwd_lookup2; __nss_group_lookup2; __nss_hosts_lookup2;
__nss_services_lookup2; __nss_next2;
}
}

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@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 1999, 2000, 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -34,7 +34,8 @@
|* *|
\*******************************************************************/
#define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup)
#define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup2)
#define DB_COMPAT_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup)
#define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post)
#define CONCAT3_2(Pre, Name, Post) Pre##Name##Post
@ -56,12 +57,14 @@
service_user *DATABASE_NAME_SYMBOL attribute_hidden;
extern int DB_LOOKUP_FCT (service_user **ni, const char *fct_name,
void **fctp) internal_function;
const char *fct2_name, void **fctp)
internal_function;
libc_hidden_proto (DB_LOOKUP_FCT)
int
internal_function
DB_LOOKUP_FCT (service_user **ni, const char *fct_name, void **fctp)
DB_LOOKUP_FCT (service_user **ni, const char *fct_name, const char *fct2_name,
void **fctp)
{
if (DATABASE_NAME_SYMBOL == NULL
&& __nss_database_lookup (DATABASE_NAME_STRING, ALTERNATE_NAME_STRING,
@ -70,6 +73,16 @@ DB_LOOKUP_FCT (service_user **ni, const char *fct_name, void **fctp)
*ni = DATABASE_NAME_SYMBOL;
return __nss_lookup (ni, fct_name, fctp);
return __nss_lookup (ni, fct_name, fct2_name, fctp);
}
libc_hidden_def (DB_LOOKUP_FCT)
#ifndef NO_COMPAT
int
internal_function attribute_compat_text_section
DB_COMPAT_FCT (service_user **ni, const char *fct_name, void **fctp)
{
return DB_LOOKUP_FCT (ni, fct_name, NULL, fctp);
}
#endif

View File

@ -42,12 +42,18 @@
|* DATABASE_NAME - name of the database the function accesses *|
|* (e.g., host, services, ...) *|
|* *|
|* ADD_PARAMS - additional parameter, can vary in number *|
|* ADD_PARAMS - additional parameters, can vary in number *|
|* *|
|* ADD_VARIABLES - names of additional parameter *|
|* ADD_VARIABLES - names of additional parameters *|
|* *|
|* Optionally the following vars can be defined: *|
|* *|
|* EXTRA_PARAMS - optional parameters, can vary in number *|
|* *|
|* EXTRA_VARIABLES - names of optional parameter *|
|* *|
|* FUNCTION_NAME - alternative name of the non-reentrant function *|
|* *|
|* NEED_H_ERRNO - an extra parameter will be passed to point to *|
|* the global `h_errno' variable. *|
|* *|
@ -62,6 +68,11 @@
/* To make the real sources a bit prettier. */
#define REENTRANT_NAME APPEND_R (FUNCTION_NAME)
#ifdef FUNCTION2_NAME
# define REENTRANT2_NAME APPEND_R (FUNCTION2_NAME)
#else
# define REENTRANT2_NAME NULL
#endif
#define APPEND_R(name) APPEND_R1 (name)
#define APPEND_R1(name) name##_r
#define INTERNAL(name) INTERNAL1 (name)
@ -80,12 +91,17 @@
#define FUNCTION_NAME_STRING STRINGIZE (FUNCTION_NAME)
#define REENTRANT_NAME_STRING STRINGIZE (REENTRANT_NAME)
#ifdef FUNCTION2_NAME
# define REENTRANT2_NAME_STRING STRINGIZE (REENTRANT2_NAME)
#else
# define REENTRANT2_NAME_STRING NULL
#endif
#define DATABASE_NAME_STRING STRINGIZE (DATABASE_NAME)
#define STRINGIZE(name) STRINGIZE1 (name)
#define STRINGIZE1(name) #name
#ifndef DB_LOOKUP_FCT
# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup)
# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup2)
# define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post)
# define CONCAT3_2(Pre, Name, Post) Pre##Name##Post
#endif
@ -101,6 +117,13 @@
# define H_ERRNO_VAR_P NULL
#endif
#ifndef EXTRA_PARAMS
# define EXTRA_PARAMS
#endif
#ifndef EXTRA_VARIABLES
# define EXTRA_VARIABLES
#endif
#ifdef HAVE_AF
# define AF_VAL af
#else
@ -109,17 +132,20 @@
/* Type of the lookup function we need here. */
typedef enum nss_status (*lookup_function) (ADD_PARAMS, LOOKUP_TYPE *, char *,
size_t, int * H_ERRNO_PARM);
size_t, int * H_ERRNO_PARM
EXTRA_PARAMS);
/* The lookup function for the first entry of this service. */
extern int DB_LOOKUP_FCT (service_user **nip, const char *name, void **fctp)
extern int DB_LOOKUP_FCT (service_user **nip, const char *name,
const char *name2, void **fctp)
internal_function;
libc_hidden_proto (DB_LOOKUP_FCT)
int
INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM)
size_t buflen, LOOKUP_TYPE **result H_ERRNO_PARM
EXTRA_PARAMS)
{
static bool startp_initialized;
static service_user *startp;
@ -171,7 +197,8 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
if (! startp_initialized)
{
no_more = DB_LOOKUP_FCT (&nip, REENTRANT_NAME_STRING, &fct.ptr);
no_more = DB_LOOKUP_FCT (&nip, REENTRANT_NAME_STRING,
REENTRANT2_NAME_STRING, &fct.ptr);
if (no_more)
{
void *tmp_ptr = (service_user *) -1l;
@ -224,7 +251,7 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
#endif
status = DL_CALL_FCT (fct.l, (ADD_VARIABLES, resbuf, buffer, buflen,
&errno H_ERRNO_VAR));
&errno H_ERRNO_VAR EXTRA_VARIABLES));
/* The status is NSS_STATUS_TRYAGAIN and errno is ERANGE the
provided buffer is too small. In this case we should give
@ -238,8 +265,8 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
&& errno == ERANGE)
break;
no_more = __nss_next (&nip, REENTRANT_NAME_STRING,
&fct.ptr, status, 0);
no_more = __nss_next2 (&nip, REENTRANT_NAME_STRING,
REENTRANT2_NAME_STRING, &fct.ptr, status, 0);
}
#ifdef HANDLE_DIGITS_DOTS
@ -274,10 +301,11 @@ done:
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1_2)
#define OLD(name) OLD1 (name)
#define OLD1(name) __old_##name
#ifndef FUNCTION2_NAME
# include <shlib-compat.h>
# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1_2)
# define OLD(name) OLD1 (name)
# define OLD1(name) __old_##name
int
attribute_compat_text_section
@ -293,19 +321,20 @@ OLD (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
return ret;
}
#define do_symbol_version(real, name, version) \
# define do_symbol_version(real, name, version) \
compat_symbol (libc, real, name, version)
do_symbol_version (OLD (REENTRANT_NAME), REENTRANT_NAME, GLIBC_2_0);
#endif
# endif
/* As INTERNAL (REENTRANT_NAME) may be hidden, we need an alias
in between so that the REENTRANT_NAME@@GLIBC_2.1.2 is not
hidden too. */
strong_alias (INTERNAL (REENTRANT_NAME), NEW (REENTRANT_NAME));
#define do_default_symbol_version(real, name, version) \
# define do_default_symbol_version(real, name, version) \
versioned_symbol (libc, real, name, version)
do_default_symbol_version (NEW (REENTRANT_NAME),
REENTRANT_NAME, GLIBC_2_1_2);
#endif
static_link_warning (REENTRANT_NAME)

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996,97,98,99,2000,2002,2004 Free Software Foundation, Inc.
/* Copyright (C) 1996-2000,2002,2004,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -64,7 +64,7 @@
#define STRINGIZE1(Name) #Name
#ifndef DB_LOOKUP_FCT
# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup)
# define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup2)
# define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post)
# define CONCAT3_2(Pre, Name, Post) Pre##Name##Post
#endif
@ -113,7 +113,8 @@ static STAYOPEN_TMP;
__libc_lock_define_initialized (static, lock)
/* The lookup function for the first entry of this service. */
extern int DB_LOOKUP_FCT (service_user **nip, const char *name, void **fctp)
extern int DB_LOOKUP_FCT (service_user **nip, const char *name,
const char *name2, void **fctp)
internal_function;
libc_hidden_proto (DB_LOOKUP_FCT)

View File

@ -1,4 +1,4 @@
/* Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc.
/* Copyright (C) 2000, 2002, 2004, 2007 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
@ -30,7 +30,7 @@ setup (const char *func_name, db_lookup_function lookup_fct,
int no_more;
if (*startp == NULL)
{
no_more = lookup_fct (nip, func_name, fctp);
no_more = lookup_fct (nip, func_name, NULL, fctp);
*startp = no_more ? (service_user *) -1l : *nip;
}
else if (*startp == (service_user *) -1l)
@ -42,7 +42,7 @@ setup (const char *func_name, db_lookup_function lookup_fct,
/* Reset to the beginning of the service list. */
*nip = *startp;
/* Look up the first function. */
no_more = __nss_lookup (nip, func_name, fctp);
no_more = __nss_lookup (nip, func_name, NULL, fctp);
}
return no_more;
}
@ -80,8 +80,7 @@ __nss_setent (const char *func_name, db_lookup_function lookup_fct,
else
status = DL_CALL_FCT (fct.f, (0));
no_more = __nss_next (nip, func_name, &fct.ptr,
status, 0);
no_more = __nss_next2 (nip, func_name, NULL, &fct.ptr, status, 0);
if (is_last_nip)
*last_nip = *nip;
}
@ -120,7 +119,7 @@ __nss_endent (const char *func_name, db_lookup_function lookup_fct,
/* We have processed all services which were used. */
break;
no_more = __nss_next (nip, func_name, &fct.ptr, 0, 1);
no_more = __nss_next2 (nip, func_name, NULL, &fct.ptr, 0, 1);
}
*last_nip = *nip = NULL;
}
@ -177,8 +176,8 @@ __nss_getent_r (const char *getent_func_name,
do
{
no_more = __nss_next (nip, getent_func_name, &fct.ptr,
status, 0);
no_more = __nss_next2 (nip, getent_func_name, NULL, &fct.ptr,
status, 0);
if (is_last_nip)
*last_nip = *nip;
@ -192,8 +191,7 @@ __nss_getent_r (const char *getent_func_name,
void *ptr;
} sfct;
no_more = __nss_lookup (nip, setent_func_name,
&sfct.ptr);
no_more = __nss_lookup (nip, setent_func_name, NULL, &sfct.ptr);
if (! no_more)
{

View File

@ -145,9 +145,12 @@ libc_hidden_def (__nss_database_lookup)
0 == function found
1 == finished */
int
__nss_lookup (service_user **ni, const char *fct_name, void **fctp)
__nss_lookup (service_user **ni, const char *fct_name, const char *fct2_name,
void **fctp)
{
*fctp = __nss_lookup_function (*ni, fct_name);
if (*fctp == NULL && fct2_name != NULL)
*fctp = __nss_lookup_function (*ni, fct_name);
while (*fctp == NULL
&& nss_next_action (*ni, NSS_STATUS_UNAVAIL) == NSS_ACTION_CONTINUE
@ -156,6 +159,8 @@ __nss_lookup (service_user **ni, const char *fct_name, void **fctp)
*ni = (*ni)->next;
*fctp = __nss_lookup_function (*ni, fct_name);
if (*fctp == NULL && fct2_name != NULL)
*fctp = __nss_lookup_function (*ni, fct_name);
}
return *fctp != NULL ? 0 : (*ni)->next == NULL ? 1 : -1;
@ -166,8 +171,8 @@ __nss_lookup (service_user **ni, const char *fct_name, void **fctp)
0 == adjusted for next function
1 == finished */
int
__nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
int all_values)
__nss_next2 (service_user **ni, const char *fct_name, const char *fct2_name,
void **fctp, int status, int all_values)
{
if (all_values)
{
@ -180,7 +185,8 @@ __nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
else
{
/* This is really only for debugging. */
if (NSS_STATUS_TRYAGAIN > status || status > NSS_STATUS_RETURN)
if (__builtin_expect (NSS_STATUS_TRYAGAIN > status
|| status > NSS_STATUS_RETURN, 0))
__libc_fatal ("illegal status in __nss_next");
if (nss_next_action (*ni, status) == NSS_ACTION_RETURN)
@ -195,6 +201,8 @@ __nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
*ni = (*ni)->next;
*fctp = __nss_lookup_function (*ni, fct_name);
if (*fctp == NULL && fct2_name != NULL)
*fctp = __nss_lookup_function (*ni, fct2_name);
}
while (*fctp == NULL
&& nss_next_action (*ni, NSS_STATUS_UNAVAIL) == NSS_ACTION_CONTINUE
@ -202,7 +210,16 @@ __nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
return *fctp != NULL ? 0 : -1;
}
libc_hidden_def (__nss_next)
libc_hidden_def (__nss_next2)
int
attribute_compat_text_section
__nss_next (service_user **ni, const char *fct_name, void **fctp, int status,
int all_values)
{
return __nss_next2 (ni, fct_name, NULL, fctp, status, all_values);
}
int

View File

@ -110,7 +110,8 @@ libc_hidden_proto (__nss_database_lookup)
/* Put first function with name FCT_NAME for SERVICE in FCTP. The
position is remembered in NI. The function returns a value < 0 if
an error occurred or no such function exists. */
extern int __nss_lookup (service_user **ni, const char *fct_name, void **fctp);
extern int __nss_lookup (service_user **ni, const char *fct_name,
const char *fct2_name, void **fctp) attribute_hidden;
/* Determine the next step in the lookup process according to the
result STATUS of the call to the last function returned by
@ -125,9 +126,12 @@ extern int __nss_lookup (service_user **ni, const char *fct_name, void **fctp);
services. In other words, only if all four lookup results have
the action RETURN associated the lookup process stops before the
natural end. */
extern int __nss_next2 (service_user **ni, const char *fct_name,
const char *fct2_name, void **fctp, int status,
int all_values) attribute_hidden;
libc_hidden_proto (__nss_next2)
extern int __nss_next (service_user **ni, const char *fct_name, void **fctp,
int status, int all_values);
libc_hidden_proto (__nss_next)
/* Search for the service described in NI for a function named FCT_NAME
and return a pointer to this function if successful. */
@ -139,7 +143,8 @@ libc_hidden_proto (__nss_lookup_function)
extern void __nss_disable_nscd (void);
typedef int (*db_lookup_function) (service_user **, const char *, void **)
typedef int (*db_lookup_function) (service_user **, const char *, const char *,
void **)
internal_function;
typedef enum nss_status (*setent_function) (int);
typedef enum nss_status (*endent_function) (void);

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
/* Copyright (C) 1996, 1997, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -18,5 +18,6 @@
02111-1307 USA. */
#define DATABASE_NAME services
#define NO_COMPAT
#include "XXX-lookup.c"

View File

@ -1,4 +1,4 @@
/* Copyright (C) 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1997, 1998, 1999, 2002, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@ -176,7 +176,7 @@ netname2user (const char netname[MAXNETNAMELEN + 1], uid_t * uidp, gid_t * gidp,
{
status = (*fct.f) (netname, uidp, gidp, gidlenp, gidlist);
no_more = __nss_next (&nip, "netname2user", &fct.ptr, status, 0);
no_more = __nss_next2 (&nip, "netname2user", NULL, &fct.ptr, status, 0);
}
return status == NSS_STATUS_SUCCESS;

View File

@ -1,5 +1,5 @@
/* Get public or secret key from key server.
Copyright (C) 1996, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
Copyright (C) 1996-1999,2002,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -71,7 +71,7 @@ getpublickey (const char *name, char *key)
{
status = (*fct.f) (name, key, &errno);
no_more = __nss_next (&nip, "getpublickey", &fct.ptr, status, 0);
no_more = __nss_next2 (&nip, "getpublickey", NULL, &fct.ptr, status, 0);
}
return status == NSS_STATUS_SUCCESS;
@ -114,7 +114,7 @@ getsecretkey (const char *name, char *key, const char *passwd)
{
status = (*fct.f) (name, key, passwd, &errno);
no_more = __nss_next (&nip, "getsecretkey", &fct.ptr, status, 0);
no_more = __nss_next2 (&nip, "getsecretkey", NULL, &fct.ptr, status, 0);
}
return status == NSS_STATUS_SUCCESS;