ldivmod, uldivmod: fix qdivrem calls
[minix.git] / include / nsswitch.h
blob405e097951b20935aba4d898feb85665a753d2af
1 /* $NetBSD: nsswitch.h,v 1.21 2011/07/17 20:54:34 joerg Exp $ */
3 /*-
4 * Copyright (c) 1997, 1998, 1999, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Luke Mewburn.
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.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #ifndef _NSSWITCH_H
33 #define _NSSWITCH_H 1
35 #include <sys/types.h>
36 #include <stdarg.h>
38 #define NSS_MODULE_INTERFACE_VERSION 0
40 #ifndef _PATH_NS_CONF
41 #define _PATH_NS_CONF "/etc/nsswitch.conf"
42 #endif
44 #define NS_CONTINUE 0
45 #define NS_RETURN 1
48 * Layout of:
49 * uint32_t ns_src.flags
50 */
51 /* nsswitch.conf status codes and nsdispatch(3) return values */
52 #define NS_SUCCESS (1<<0) /* entry was found */
53 #define NS_UNAVAIL (1<<1) /* source not responding, or corrupt */
54 #define NS_NOTFOUND (1<<2) /* source responded 'no such entry' */
55 #define NS_TRYAGAIN (1<<3) /* source busy, may respond to retrys */
56 #define NS_STATUSMASK 0x000000ff /* bitmask to get the status flags */
58 /* internal nsdispatch(3) flags; not settable in nsswitch.conf(5) */
59 #define NS_FORCEALL (1<<8) /* force all methods to be invoked; */
62 * Currently implemented sources.
64 #define NSSRC_FILES "files" /* local files */
65 #define NSSRC_DNS "dns" /* DNS; IN for hosts, HS for others */
66 #define NSSRC_NIS "nis" /* YP/NIS */
67 #define NSSRC_COMPAT "compat" /* passwd,group in YP compat mode */
70 * Currently implemented databases.
72 #define NSDB_HOSTS "hosts"
73 #define NSDB_GROUP "group"
74 #define NSDB_GROUP_COMPAT "group_compat"
75 #define NSDB_NETGROUP "netgroup"
76 #define NSDB_NETWORKS "networks"
77 #define NSDB_PASSWD "passwd"
78 #define NSDB_PASSWD_COMPAT "passwd_compat"
79 #define NSDB_SHELLS "shells"
82 * Suggested databases to implement.
84 #define NSDB_ALIASES "aliases"
85 #define NSDB_AUTH "auth"
86 #define NSDB_AUTOMOUNT "automount"
87 #define NSDB_BOOTPARAMS "bootparams"
88 #define NSDB_ETHERS "ethers"
89 #define NSDB_EXPORTS "exports"
90 #define NSDB_NETMASKS "netmasks"
91 #define NSDB_PHONES "phones"
92 #define NSDB_PRINTCAP "printcap"
93 #define NSDB_PROTOCOLS "protocols"
94 #define NSDB_REMOTE "remote"
95 #define NSDB_RPC "rpc"
96 #define NSDB_SENDMAILVARS "sendmailvars"
97 #define NSDB_SERVICES "services"
98 #define NSDB_TERMCAP "termcap"
99 #define NSDB_TTYS "ttys"
102 * ns_dtab `callback' function signature.
104 typedef int (*nss_method)(void *, void *, va_list);
107 * ns_dtab - `nsswitch dispatch table'
108 * Contains an entry for each source and the appropriate function to call.
110 typedef struct {
111 const char *src;
112 nss_method callback;
113 void *cb_data;
114 } ns_dtab;
117 * Macros to help build an ns_dtab[]
119 #define NS_FILES_CB(F,C) { NSSRC_FILES, F, __UNCONST(C) },
120 #define NS_COMPAT_CB(F,C) { NSSRC_COMPAT, F, __UNCONST(C) },
122 #ifdef HESIOD
123 # define NS_DNS_CB(F,C) { NSSRC_DNS, F, __UNCONST(C) },
124 #else
125 # define NS_DNS_CB(F,C)
126 #endif
128 #ifdef YP
129 # define NS_NIS_CB(F,C) { NSSRC_NIS, F, __UNCONST(C) },
130 #else
131 # define NS_NIS_CB(F,C)
132 #endif
133 #define NS_NULL_CB { .src = NULL },
136 * ns_src - `nsswitch source'
137 * Used by the nsparser routines to store a mapping between a source
138 * and its dispatch control flags for a given database.
140 typedef struct {
141 const char *name;
142 uint32_t flags;
143 } ns_src;
147 * Default sourcelists (if nsswitch.conf is missing, corrupt,
148 * or the requested database doesn't have an entry)
150 extern const ns_src __nsdefaultsrc[];
151 extern const ns_src __nsdefaultcompat[];
152 extern const ns_src __nsdefaultcompat_forceall[];
153 extern const ns_src __nsdefaultfiles[];
154 extern const ns_src __nsdefaultfiles_forceall[];
155 extern const ns_src __nsdefaultnis[];
156 extern const ns_src __nsdefaultnis_forceall[];
160 * ns_mtab - `nsswitch method table'
161 * An nsswitch module provides a mapping from (database name, method name)
162 * tuples to the nss_method and associated callback data. Effectively,
163 * ns_dtab, but used for dynamically loaded modules.
165 typedef struct {
166 const char *database;
167 const char *name;
168 nss_method method;
169 void *mdata;
170 } ns_mtab;
173 * nss_module_register_fn - module registration function
174 * called at module load
175 * nss_module_unregister_fn - module un-registration function
176 * called at module unload
178 typedef void (*nss_module_unregister_fn)(ns_mtab *, u_int);
179 typedef ns_mtab *(*nss_module_register_fn)(const char *, u_int *,
180 nss_module_unregister_fn *);
182 #ifdef _NS_PRIVATE
185 * Private data structures for back-end nsswitch implementation.
189 * ns_dbt - `nsswitch database thang'
190 * For each database in /etc/nsswitch.conf there is a ns_dbt, with its
191 * name and a list of ns_src's containing the source information.
193 typedef struct {
194 const char *name; /* name of database */
195 ns_src *srclist; /* list of sources */
196 u_int srclistsize; /* size of srclist */
197 } ns_dbt;
200 * ns_mod - `nsswitch module'
202 typedef struct {
203 const char *name; /* module name */
204 void *handle; /* handle from dlopen() */
205 ns_mtab *mtab; /* method table */
206 u_int mtabsize; /* size of mtab */
207 /* called to unload module */
208 nss_module_unregister_fn unregister;
209 } ns_mod;
211 #endif /* _NS_PRIVATE */
214 #include <sys/cdefs.h>
216 __BEGIN_DECLS
217 int nsdispatch(void *, const ns_dtab [], const char *,
218 const char *, const ns_src [], ...);
220 #ifdef _NS_PRIVATE
221 int _nsdbtaddsrc(ns_dbt *, const ns_src *);
222 void _nsdbtdump(const ns_dbt *);
223 int _nsdbtput(const ns_dbt *);
224 void _nsyyerror(const char *);
225 int _nsyylex(void);
226 #endif /* _NS_PRIVATE */
228 __END_DECLS
230 #endif /* !_NSSWITCH_H */