1 /* $NetBSD: nsswitch.h,v 1.6 1999/01/26 01:04:07 lukem Exp $ */ 2 /* $FreeBSD$ */ 3 4 /*- 5 * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Luke Mewburn. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #ifndef _NSSWITCH_H 41 #define _NSSWITCH_H 1 42 43 #include <sys/types.h> 44 45 #if __STDC__ 46 #include <stdarg.h> 47 #else 48 #include <varargs.h> 49 #endif 50 51 #ifndef _PATH_NS_CONF 52 #define _PATH_NS_CONF "/etc/nsswitch.conf" 53 #endif 54 55 #define NS_CONTINUE 0 56 #define NS_RETURN 1 57 58 #define NS_SUCCESS (1<<0) /* entry was found */ 59 #define NS_UNAVAIL (1<<1) /* source not responding, or corrupt */ 60 #define NS_NOTFOUND (1<<2) /* source responded 'no such entry' */ 61 #define NS_TRYAGAIN (1<<3) /* source busy, may respond to retrys */ 62 #define NS_STATUSMASK 0x000000ff /* bitmask to get the status flags */ 63 64 /* 65 * currently implemented sources 66 */ 67 #define NSSRC_FILES "files" /* local files */ 68 #define NSSRC_DNS "dns" /* DNS; IN for hosts, HS for others */ 69 #define NSSRC_NIS "nis" /* YP/NIS */ 70 #define NSSRC_COMPAT "compat" /* passwd,group in YP compat mode */ 71 72 /* 73 * currently implemented databases 74 */ 75 #define NSDB_HOSTS "hosts" 76 #define NSDB_GROUP "group" 77 #define NSDB_GROUP_COMPAT "group_compat" 78 #define NSDB_NETGROUP "netgroup" 79 #define NSDB_NETWORKS "networks" 80 #define NSDB_PASSWD "passwd" 81 #define NSDB_PASSWD_COMPAT "passwd_compat" 82 #define NSDB_SHELLS "shells" 83 84 /* 85 * suggested databases to implement 86 */ 87 #define NSDB_ALIASES "aliases" 88 #define NSDB_AUTH "auth" 89 #define NSDB_AUTOMOUNT "automount" 90 #define NSDB_BOOTPARAMS "bootparams" 91 #define NSDB_ETHERS "ethers" 92 #define NSDB_EXPORTS "exports" 93 #define NSDB_NETMASKS "netmasks" 94 #define NSDB_PHONES "phones" 95 #define NSDB_PRINTCAP "printcap" 96 #define NSDB_PROTOCOLS "protocols" 97 #define NSDB_REMOTE "remote" 98 #define NSDB_RPC "rpc" 99 #define NSDB_SENDMAILVARS "sendmailvars" 100 #define NSDB_SERVICES "services" 101 #define NSDB_TERMCAP "termcap" 102 #define NSDB_TTYS "ttys" 103 104 /* 105 * ns_dtab - `nsswitch dispatch table' 106 * contains an entry for each source and the appropriate function to call 107 */ 108 typedef struct { 109 const char *src; 110 int (*callback)(void *retval, void *cb_data, va_list ap); 111 void *cb_data; 112 } ns_dtab; 113 114 /* 115 * macros to help build an ns_dtab[] 116 */ 117 #define NS_FILES_CB(F,C) { NSSRC_FILES, F, C }, 118 #define NS_COMPAT_CB(F,C) { NSSRC_COMPAT, F, C }, 119 120 #ifdef HESIOD 121 # define NS_DNS_CB(F,C) { NSSRC_DNS, F, C }, 122 #else 123 # define NS_DNS_CB(F,C) 124 #endif 125 126 #ifdef YP 127 # define NS_NIS_CB(F,C) { NSSRC_NIS, F, C }, 128 #else 129 # define NS_NIS_CB(F,C) 130 #endif 131 132 /* 133 * ns_src - `nsswitch source' 134 * used by the nsparser routines to store a mapping between a source 135 * and its dispatch control flags for a given database. 136 */ 137 typedef struct { 138 const char *name; 139 u_int32_t flags; 140 } ns_src; 141 142 143 /* 144 * default sourcelist (if nsswitch.conf is missing, corrupt, 145 * or the requested database doesn't have an entry. 146 */ 147 extern const ns_src __nsdefaultsrc[]; 148 149 150 #ifdef _NS_PRIVATE 151 152 /* 153 * private data structures for back-end nsswitch implementation 154 */ 155 156 /* 157 * ns_dbt - `nsswitch database thang' 158 * for each database in /etc/nsswitch.conf there is a ns_dbt, with its 159 * name and a list of ns_src's containing the source information. 160 */ 161 typedef struct { 162 const char *name; /* name of database */ 163 ns_src *srclist; /* list of sources */ 164 int srclistsize; /* size of srclist */ 165 } ns_dbt; 166 167 #endif /* _NS_PRIVATE */ 168 169 170 #include <sys/cdefs.h> 171 172 __BEGIN_DECLS 173 extern int nsdispatch __P((void *, const ns_dtab [], const char *, 174 const char *, const ns_src [], ...)); 175 176 #ifdef _NS_PRIVATE 177 extern void _nsdbtaddsrc __P((ns_dbt *, const ns_src *)); 178 extern void _nsdbtdump __P((const ns_dbt *)); 179 extern const ns_dbt *_nsdbtget __P((const char *)); 180 extern void _nsdbtput __P((const ns_dbt *)); 181 extern void _nsyyerror __P((const char *)); 182 extern int _nsyylex __P((void)); 183 extern int _nsyylineno; 184 #endif /* _NS_PRIVATE */ 185 186 __END_DECLS 187 188 #endif /* !_NSSWITCH_H */ 189