glibc/nss/nss_db/db-netgrp.c
Ulrich Drepper 19361cb768 update from main archive 970129
1997-01-30 03:24  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/i386/elf/start.S (_start): Align stack pointer to
	double word boundary before pushing args for main.  This way we
	don't get penalties for misaligned memory accesses.  Reported by
	Edward Seidl <seidl@janed.com>.

	* Makefile: Correct *my* changes of Richards patch of 1997-01-28 10:51.
	Patch by HJ Lu.

	* misc/bsd-compat.c: Update copyright.
	* misc/efgcvt.c: Likewise.
	* misc/efgcvt_r.c: Likewise.
	* misc/error.c: Likewise.
	* misc/error.h: Likewise.
	* misc/fstab.c: Likewise.
	* misc/init-misc.c: Likewise.
	* misc/lsearch.c: Likewise.
	* misc/mntent.c: Likewise.
	* misc/qefgcvt.c: Likewise.
	* misc/qefgcvt_r.c: Likewise.
	* nss/databases.def: Likewise.
	* nss/db-Makefile: Likewise.
	* nss/ethers-lookup.c: Likewise.
	* nss/hosts-lookup.c: Likewise.
	* nss/netgrp-lookup.c: Likewise.
	* nss/nsswitch.h: Likewise.
	* nss/proto-lookup.c: Likewise.
	* nss/rpc-lookup.c: Likewise.
	* nss/service-lookup.c: Likewise.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_files/files-grp.c: Likewise.
	* nss/nss_files/files-hosts.c: Likewise.
	* nss/nss_files/files-network.c: Likewise.
	* nss/nss_files/files-proto.c: Likewise.
	* nss/nss_files/files-pwd.c: Likewise.
	* nss/nss_files/files-rpc.c: Likewise.
	* nss/nss_files/files-service.c: Likewise.
	* nss/nss_files/files-spwd.c: Likewise.
	* shadow/fgetspent.c: Likewise.
	* shadow/fgetspent_r.c: Likewise.
	* shadow/getspent.c: Likewise.
	* shadow/getspent_r.c: Likewise.
	* shadow/getspnam.c: Likewise.
	* shadow/getspnam_r.c: Likewise.
	* shadow/putspent.c: Likewise.
	* shadow/sgetspent.c: Likewise.
	* shadow/sgetspent_r.c: Likewise.
	* sysdeps/i386/init-first.c: Likewise.
	* sysdeps/unix/i386/sysdep.S: Likewise.

	* shadow/shadow.h: Don't use __USE_REENTRENT.  All code must be
	prepared to be running in a multi-threaded environment.  Change
	to __USE_MISC unless the function is defined in POSIX.1 (in this
	case also test for __USE_POSIX).
	* dirent/dirent.h: Likewise.
	* grp/grp.h: Likewise.
	* inet/aliases.h: Likewise.
	* libio/libio.h: Likewise.
	* libio/stdio.h: Likewise.
	* login/utmp.h: Likewise.
	* math/mathcalls.h: Likewise.
	* misc/mntent.h: Likewise.
	* pwd/pwd.h: Likewise.
	* resolv/netdb.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* string/string.h: Likewise.
	* sunrpc/rpc/netdb.h: Likewise.
	* sysdeps/generic/crypt.h: Likewise.
	* sysdeps/unix/sysv/linux/errnos.h: Likewise.
	* time/time.h: Likewise.

1997-01-30 00:27  Fila Kolodny  <fila@ibi.com>

	* sunrpc/Makefile (install-others): Add rpcsvc/bootparam_prot.h
	only if not cross compiling.

1997-01-29 16:16  Fila Kolodny  <fila@ibi.com>

	* sysdeps/posix/sigpause.c: Include <stddef.h> to get definition of
	NULL.
	* sysdeps/posix/sigwait.c: Likewise.

1997-01-28 23:42  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig ($(common-objpfx)config.make): Depend on
	$(..)config.make.in.
1997-01-30 04:09:36 +00:00

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/* Netgroup file parser in nss_db modules.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <db.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <libc-lock.h>
#include <paths.h>
#include "nsswitch.h"
#include "netgroup.h"
#define DBFILE _PATH_VARDB "netgroup.db"
/* Locks the static variables in this file. */
__libc_lock_define_initialized (static, lock)
/* Maintenance of the shared handle open on the database. */
static DB *db;
static char *entry;
static char *cursor;
enum nss_status
_nss_db_setnetgrent (const char *group)
{
enum nss_status status = NSS_STATUS_SUCCESS;
__libc_lock_lock (lock);
/* Make sure the data base file is open. */
if (db == NULL)
{
db = dbopen (DBFILE, O_RDONLY, 0, DB_BTREE, NULL);
if (db == NULL)
status = errno == EAGAIN ? NSS_STATUS_TRYAGAIN : NSS_STATUS_UNAVAIL;
}
if (status == NSS_STATUS_SUCCESS)
{
DBT key = { data: (void *) group, size: strlen (group) };
DBT value;
if ((*db->get) (db, &key, &value, 0) != 0)
status = NSS_STATUS_NOTFOUND;
else
cursor = entry = value.data;
}
__libc_lock_unlock (lock);
return status;
}
enum nss_status
_nss_db_endnetgrent (void)
{
__libc_lock_lock (lock);
if (db != NULL)
{
(*db->close) (db);
db = NULL;
}
__libc_lock_unlock (lock);
return NSS_STATUS_SUCCESS;
}
extern enum nss_status _nss_netgroup_parseline (char **cursor,
struct __netgrent *result,
char *buffer, int buflen);
enum nss_status
_nss_db_getnetgrent_r (struct __netgrent *result, char *buffer, int buflen)
{
int status;
__libc_lock_lock (lock);
status = _nss_netgroup_parseline (&cursor, result, buffer, buflen);
__libc_lock_unlock (lock);
return status;
}