nsswitch.h revision 1.8
1/* $NetBSD: nsswitch.h,v 1.8 1999/11/28 05:51:46 lukem Exp $ */ 2 3/*- 4 * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Luke Mewburn. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#ifndef _NSSWITCH_H 40#define _NSSWITCH_H 1 41 42/* 43 * Don't use va_list in prototypes. Va_list is typedef'd in two places 44 * (<machine/varargs.h> and <machine/stdarg.h>), so if we include one of 45 * them here we may collide with the utility's includes. It's unreasonable 46 * for utilities to have to include one of them to include nsswitch.h, so 47 * we get _BSD_VA_LIST_ from <machine/ansi.h> and use it. 48 */ 49#include <machine/ansi.h> 50#include <sys/types.h> 51 52#ifndef _PATH_NS_CONF 53#define _PATH_NS_CONF "/etc/nsswitch.conf" 54#endif 55 56#define NS_CONTINUE 0 57#define NS_RETURN 1 58 59#define NS_SUCCESS (1<<0) /* entry was found */ 60#define NS_UNAVAIL (1<<1) /* source not responding, or corrupt */ 61#define NS_NOTFOUND (1<<2) /* source responded 'no such entry' */ 62#define NS_TRYAGAIN (1<<3) /* source busy, may respond to retrys */ 63#define NS_STATUSMASK 0x000000ff /* bitmask to get the status flags */ 64 65/* 66 * currently implemented sources 67 */ 68#define NSSRC_FILES "files" /* local files */ 69#define NSSRC_DNS "dns" /* DNS; IN for hosts, HS for others */ 70#define NSSRC_NIS "nis" /* YP/NIS */ 71#define NSSRC_COMPAT "compat" /* passwd,group in YP compat mode */ 72 73/* 74 * currently implemented databases 75 */ 76#define NSDB_HOSTS "hosts" 77#define NSDB_GROUP "group" 78#define NSDB_GROUP_COMPAT "group_compat" 79#define NSDB_NETGROUP "netgroup" 80#define NSDB_NETWORKS "networks" 81#define NSDB_PASSWD "passwd" 82#define NSDB_PASSWD_COMPAT "passwd_compat" 83#define NSDB_SHELLS "shells" 84 85/* 86 * suggested databases to implement 87 */ 88#define NSDB_ALIASES "aliases" 89#define NSDB_AUTH "auth" 90#define NSDB_AUTOMOUNT "automount" 91#define NSDB_BOOTPARAMS "bootparams" 92#define NSDB_ETHERS "ethers" 93#define NSDB_EXPORTS "exports" 94#define NSDB_NETMASKS "netmasks" 95#define NSDB_PHONES "phones" 96#define NSDB_PRINTCAP "printcap" 97#define NSDB_PROTOCOLS "protocols" 98#define NSDB_REMOTE "remote" 99#define NSDB_RPC "rpc" 100#define NSDB_SENDMAILVARS "sendmailvars" 101#define NSDB_SERVICES "services" 102#define NSDB_TERMCAP "termcap" 103#define NSDB_TTYS "ttys" 104 105/* 106 * ns_dtab - `nsswitch dispatch table' 107 * contains an entry for each source and the appropriate function to call 108 */ 109typedef struct { 110 const char *src; 111 int (*callback) __P((void *retval, void *cb_data, 112 _BSD_VA_LIST_)); 113 void *cb_data; 114} ns_dtab; 115 116/* 117 * macros to help build an ns_dtab[] 118 */ 119#define NS_FILES_CB(F,C) { NSSRC_FILES, F, C }, 120#define NS_COMPAT_CB(F,C) { NSSRC_COMPAT, F, C }, 121 122#ifdef HESIOD 123# define NS_DNS_CB(F,C) { NSSRC_DNS, F, C }, 124#else 125# define NS_DNS_CB(F,C) 126#endif 127 128#ifdef YP 129# define NS_NIS_CB(F,C) { NSSRC_NIS, F, C }, 130#else 131# define NS_NIS_CB(F,C) 132#endif 133 134/* 135 * ns_src - `nsswitch source' 136 * used by the nsparser routines to store a mapping between a source 137 * and its dispatch control flags for a given database. 138 */ 139typedef struct { 140 const char *name; 141 u_int32_t flags; 142} ns_src; 143 144 145/* 146 * default sourcelist (if nsswitch.conf is missing, corrupt, 147 * or the requested database doesn't have an entry. 148 */ 149extern const ns_src __nsdefaultsrc[]; 150 151 152#ifdef _NS_PRIVATE 153 154/* 155 * private data structures for back-end nsswitch implementation 156 */ 157 158/* 159 * ns_dbt - `nsswitch database thang' 160 * for each database in /etc/nsswitch.conf there is a ns_dbt, with its 161 * name and a list of ns_src's containing the source information. 162 */ 163typedef struct { 164 const char *name; /* name of database */ 165 ns_src *srclist; /* list of sources */ 166 int srclistsize; /* size of srclist */ 167} ns_dbt; 168 169#endif /* _NS_PRIVATE */ 170 171 172#include <sys/cdefs.h> 173 174__BEGIN_DECLS 175extern int nsdispatch __P((void *, const ns_dtab [], const char *, 176 const char *, const ns_src [], ...)); 177 178#ifdef _NS_PRIVATE 179extern int _nsdbtaddsrc __P((ns_dbt *, const ns_src *)); 180extern void _nsdbtdump __P((const ns_dbt *)); 181extern const ns_dbt *_nsdbtget __P((const char *)); 182extern int _nsdbtput __P((const ns_dbt *)); 183extern void _nsyyerror __P((const char *)); 184extern int _nsyylex __P((void)); 185extern int _nsyylineno; 186#endif /* _NS_PRIVATE */ 187 188__END_DECLS 189 190#endif /* !_NSSWITCH_H */ 191