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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/* Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include "nsswitch.h"
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/*******************************************************************\
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|* Here we assume one symbol to be defined: *|
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|* *|
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|* DATABASE_NAME - name of the database the function accesses *|
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|* (e.g., hosts, services, ...) *|
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|* *|
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|* One additional symbol may optionally be defined: *|
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|* *|
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|* ALTERNATE_NAME - name of another service which is examined in *|
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|* case DATABASE_NAME is not found *|
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|* *|
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|* DEFAULT_CONFIG - string for default conf (e.g. "dns files") *|
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|* *|
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\*******************************************************************/
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#define DB_LOOKUP_FCT CONCAT3_1 (__nss_, DATABASE_NAME, _lookup)
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#define CONCAT3_1(Pre, Name, Post) CONCAT3_2 (Pre, Name, Post)
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#define CONCAT3_2(Pre, Name, Post) Pre##Name##Post
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#define DATABASE_NAME_SYMBOL CONCAT3_1 (__nss_, DATABASE_NAME, _database)
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#define DATABASE_NAME_STRING STRINGIFY1 (DATABASE_NAME)
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#define STRINGIFY1(Name) STRINGIFY2 (Name)
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#define STRINGIFY2(Name) #Name
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#ifdef ALTERNATE_NAME
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#define ALTERNATE_NAME_STRING STRINGIFY1 (ALTERNATE_NAME)
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#else
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#define ALTERNATE_NAME_STRING NULL
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#endif
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#ifndef DEFAULT_CONFIG
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#define DEFAULT_CONFIG NULL
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#endif
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service_user *DATABASE_NAME_SYMBOL;
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extern int DB_LOOKUP_FCT (service_user **ni, const char *fct_name, void **fctp);
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int
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DB_LOOKUP_FCT (service_user **ni, const char *fct_name, void **fctp)
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{
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if (DATABASE_NAME_SYMBOL == NULL
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&& __nss_database_lookup (DATABASE_NAME_STRING, ALTERNATE_NAME_STRING,
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DEFAULT_CONFIG, &DATABASE_NAME_SYMBOL) < 0)
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return -1;
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*ni = DATABASE_NAME_SYMBOL;
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return __nss_lookup (ni, fct_name, fctp);
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}
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