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/* Copyright (C) 1996, 1997, 1999, 2000, 2002 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "nsswitch.h"
/*******************************************************************\
|* Here we assume one symbol to be defined: *|
|* *|
|* DATABASE_NAME - name of the database the function accesses *|
|* (e.g., hosts, services, ...) *|
|* *|
|* One additional symbol may optionally be defined: *|
|* *|
|* ALTERNATE_NAME - name of another service which is examined in *|
|* case DATABASE_NAME is not found *|
|* *|
|* DEFAULT_CONFIG - string for default conf (e.g. "dns files") *|
|* *|
\*******************************************************************/
#define DB_LOOKUP_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
#define DATABASE_NAME_SYMBOL CONCAT3_1 (__nss_, DATABASE_NAME, _database)
#define DATABASE_NAME_STRING STRINGIFY1 (DATABASE_NAME)
#define STRINGIFY1(Name) STRINGIFY2 (Name)
#define STRINGIFY2(Name) #Name
#ifdef ALTERNATE_NAME
#define ALTERNATE_NAME_STRING STRINGIFY1 (ALTERNATE_NAME)
#else
#define ALTERNATE_NAME_STRING NULL
#endif
#ifndef DEFAULT_CONFIG
#define DEFAULT_CONFIG NULL
#endif
service_user *DATABASE_NAME_SYMBOL attribute_hidden;
extern int DB_LOOKUP_FCT (service_user **ni, const char *fct_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)
{
if (DATABASE_NAME_SYMBOL == NULL
&& __nss_database_lookup (DATABASE_NAME_STRING, ALTERNATE_NAME_STRING,
DEFAULT_CONFIG, &DATABASE_NAME_SYMBOL) < 0)
return -1;
*ni = DATABASE_NAME_SYMBOL;
return __nss_lookup (ni, fct_name, fctp);
}
libc_hidden_def (DB_LOOKUP_FCT)
|
