mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
46d9306383
may be built into libc (`static NSS modules') or dynamically loaded via dlopen (`dynamic NSS modules'). Modules are loaded/initialized at configuration time (i.e. when nsdispatch is called and nsswitch.conf is read or re-read). = Make the nsdispatch(3) core thread-safe. = New status code for nsdispatch(3) `NS_RETURN', currently used to signal ERANGE-type issues. = syslog(3) problems, don't warn/err/abort. = Try harder to avoid namespace pollution. = Implement some shims to assist in porting NSS modules written for the GNU C Library nsswitch interface. Sponsored by: DARPA, Network Associates Laboratories
179 lines
4.1 KiB
Plaintext
179 lines
4.1 KiB
Plaintext
%{
|
|
/* $NetBSD: nsparser.y,v 1.3 1999/01/25 00:16:18 lukem Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Luke Mewburn.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "namespace.h"
|
|
#define _NS_PRIVATE
|
|
#include <nsswitch.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <syslog.h>
|
|
#include "un-namespace.h"
|
|
|
|
static void _nsaddsrctomap(const char *);
|
|
|
|
static ns_dbt curdbt;
|
|
static ns_src cursrc;
|
|
%}
|
|
|
|
%union {
|
|
char *str;
|
|
int mapval;
|
|
}
|
|
|
|
%token NL
|
|
%token SUCCESS UNAVAIL NOTFOUND TRYAGAIN
|
|
%token RETURN CONTINUE
|
|
%token ERRORTOKEN
|
|
%token <str> STRING
|
|
|
|
%type <mapval> Status Action
|
|
|
|
%%
|
|
|
|
File
|
|
: /* empty */
|
|
| Lines
|
|
;
|
|
|
|
Lines
|
|
: Entry
|
|
| Lines Entry
|
|
;
|
|
|
|
Entry
|
|
: NL
|
|
| Database ':' NL
|
|
| Database ':' Srclist NL
|
|
{
|
|
_nsdbtput(&curdbt);
|
|
}
|
|
| error NL
|
|
{
|
|
yyerrok;
|
|
}
|
|
;
|
|
|
|
Database
|
|
: STRING
|
|
{
|
|
curdbt.name = yylval.str;
|
|
curdbt.srclist = NULL;
|
|
curdbt.srclistsize = 0;
|
|
}
|
|
;
|
|
|
|
Srclist
|
|
: Item
|
|
| Srclist Item
|
|
;
|
|
|
|
Item
|
|
: STRING
|
|
{
|
|
cursrc.flags = NS_TERMINATE;
|
|
_nsaddsrctomap($1);
|
|
}
|
|
| STRING '[' { cursrc.flags = NS_SUCCESS; } Criteria ']'
|
|
{
|
|
_nsaddsrctomap($1);
|
|
}
|
|
;
|
|
|
|
Criteria
|
|
: Criterion
|
|
| Criteria Criterion
|
|
;
|
|
|
|
Criterion
|
|
: Status '=' Action
|
|
{
|
|
if ($3) /* if action == RETURN set RETURN bit */
|
|
cursrc.flags |= $1;
|
|
else /* else unset it */
|
|
cursrc.flags &= ~$1;
|
|
}
|
|
;
|
|
|
|
Status
|
|
: SUCCESS { $$ = NS_SUCCESS; }
|
|
| UNAVAIL { $$ = NS_UNAVAIL; }
|
|
| NOTFOUND { $$ = NS_NOTFOUND; }
|
|
| TRYAGAIN { $$ = NS_TRYAGAIN; }
|
|
;
|
|
|
|
Action
|
|
: RETURN { $$ = NS_ACTION_RETURN; }
|
|
| CONTINUE { $$ = NS_ACTION_CONTINUE; }
|
|
;
|
|
|
|
%%
|
|
|
|
static void
|
|
_nsaddsrctomap(elem)
|
|
const char *elem;
|
|
{
|
|
int i, lineno;
|
|
extern int _nsyylineno;
|
|
extern char * _nsyytext;
|
|
|
|
lineno = _nsyylineno - (*_nsyytext == '\n' ? 1 : 0);
|
|
if (curdbt.srclistsize > 0) {
|
|
if ((strcasecmp(elem, NSSRC_COMPAT) == 0) ||
|
|
(strcasecmp(curdbt.srclist[0].name, NSSRC_COMPAT) == 0)) {
|
|
syslog(LOG_ERR,
|
|
"NSSWITCH(nsparser): %s line %d: 'compat' used with other sources",
|
|
_PATH_NS_CONF, lineno);
|
|
return;
|
|
}
|
|
}
|
|
for (i = 0; i < curdbt.srclistsize; i++) {
|
|
if (strcasecmp(curdbt.srclist[i].name, elem) == 0) {
|
|
syslog(LOG_ERR,
|
|
"NSSWITCH(nsparser): %s line %d: duplicate source '%s'",
|
|
_PATH_NS_CONF, lineno, elem);
|
|
return;
|
|
}
|
|
}
|
|
cursrc.name = elem;
|
|
_nsdbtaddsrc(&curdbt, &cursrc);
|
|
}
|