1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)pwd.h 8.2 (Berkeley) 1/21/94 37 */ 38 39 #ifndef _PWD_H_ 40 #define _PWD_H_ 41 42 #include <sys/cdefs.h> 43 #include <sys/_types.h> 44 45 #ifndef _GID_T_DECLARED 46 typedef __gid_t gid_t; 47 #define _GID_T_DECLARED 48 #endif 49 50 #ifndef _TIME_T_DECLARED 51 typedef __time_t time_t; 52 #define _TIME_T_DECLARED 53 #endif 54 55 #ifndef _UID_T_DECLARED 56 typedef __uid_t uid_t; 57 #define _UID_T_DECLARED 58 #endif 59 60 #ifndef _SIZE_T_DECLARED 61 typedef __size_t size_t; 62 #define _SIZE_T_DECLARED 63 #endif 64 65 #define _PATH_PWD "/etc" 66 #define _PATH_PASSWD "/etc/passwd" 67 #define _PASSWD "passwd" 68 #define _PATH_MASTERPASSWD "/etc/master.passwd" 69 #define _MASTERPASSWD "master.passwd" 70 71 #define _PATH_MP_DB "/etc/pwd.db" 72 #define _MP_DB "pwd.db" 73 #define _PATH_SMP_DB "/etc/spwd.db" 74 #define _SMP_DB "spwd.db" 75 76 #define _PATH_PWD_MKDB "/usr/sbin/pwd_mkdb" 77 78 /* Historically, the keys in _PATH_MP_DB/_PATH_SMP_DB had the format 79 * `1 octet tag | key', where the tag is one of the _PW_KEY* values 80 * listed below. These values happen to be ASCII digits. Starting 81 * with FreeBSD 5.1, the tag is now still a single octet, but the 82 * upper 4 bits are interpreted as a version. Pre-FreeBSD 5.1 format 83 * entries are version `3' -- this conveniently results in the same 84 * key values as before. The new, architecture-independent entries 85 * are version `4'. 86 * As it happens, some applications read the database directly. 87 * (Bad app, no cookie!) Thus, we leave the _PW_KEY* symbols at their 88 * old pre-FreeBSD 5.1 values so these apps still work. Consequently 89 * we have to muck around a bit more to get the correct, versioned 90 * tag, and that is what the _PW_VERSIONED macro is about. 91 */ 92 93 #define _PW_VERSION_MASK '\xF0' 94 #define _PW_VERSIONED(x, v) ((unsigned char)(((x) & 0xCF) | ((v)<<4))) 95 96 #define _PW_KEYBYNAME '\x31' /* stored by name */ 97 #define _PW_KEYBYNUM '\x32' /* stored by entry in the "file" */ 98 #define _PW_KEYBYUID '\x33' /* stored by uid */ 99 #define _PW_KEYYPENABLED '\x34' /* YP is enabled */ 100 #define _PW_KEYYPBYNUM '\x35' /* special +@netgroup entries */ 101 102 /* The database also contains a key to indicate the format version of 103 * the entries therein. There may be other, older versioned entries 104 * as well. 105 */ 106 #define _PWD_VERSION_KEY "\xFF" "VERSION" 107 #define _PWD_CURRENT_VERSION '\x04' 108 109 #define _PASSWORD_EFMT1 '_' /* extended encryption format */ 110 111 #define _PASSWORD_LEN 128 /* max length, not counting NULL */ 112 113 struct passwd { 114 char *pw_name; /* user name */ 115 char *pw_passwd; /* encrypted password */ 116 uid_t pw_uid; /* user uid */ 117 gid_t pw_gid; /* user gid */ 118 time_t pw_change; /* password change time */ 119 char *pw_class; /* user access class */ 120 char *pw_gecos; /* Honeywell login info */ 121 char *pw_dir; /* home directory */ 122 char *pw_shell; /* default shell */ 123 time_t pw_expire; /* account expiration */ 124 int pw_fields; /* internal: fields filled in */ 125 }; 126 127 /* Mapping from fields to bits for pw_fields. */ 128 #define _PWF(x) (1 << x) 129 #define _PWF_NAME _PWF(0) 130 #define _PWF_PASSWD _PWF(1) 131 #define _PWF_UID _PWF(2) 132 #define _PWF_GID _PWF(3) 133 #define _PWF_CHANGE _PWF(4) 134 #define _PWF_CLASS _PWF(5) 135 #define _PWF_GECOS _PWF(6) 136 #define _PWF_DIR _PWF(7) 137 #define _PWF_SHELL _PWF(8) 138 #define _PWF_EXPIRE _PWF(9) 139 140 /* XXX These flags are bogus. With nsswitch, there are many 141 * possible sources and they cannot be represented in a small integer. 142 */ 143 #define _PWF_SOURCE 0x3000 144 #define _PWF_FILES 0x1000 145 #define _PWF_NIS 0x2000 146 #define _PWF_HESIOD 0x3000 147 148 __BEGIN_DECLS 149 struct passwd *getpwnam(const char *); 150 struct passwd *getpwuid(uid_t); 151 152 #if __XSI_VISIBLE >= 500 153 void endpwent(void); 154 struct passwd *getpwent(void); 155 void setpwent(void); 156 #endif 157 158 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 500 159 int getpwnam_r(const char *, struct passwd *, char *, size_t, 160 struct passwd **); 161 int getpwuid_r(uid_t, struct passwd *, char *, size_t, 162 struct passwd **); 163 #endif 164 165 #if __BSD_VISIBLE 166 int getpwent_r(struct passwd *, char *, size_t, struct passwd **); 167 int setpassent(int); 168 const char *user_from_uid(uid_t, int); 169 int uid_from_user(const char *, uid_t *); 170 int pwcache_userdb(int (*)(int), void (*)(void), 171 struct passwd * (*)(const char *), 172 struct passwd * (*)(uid_t)); 173 #endif 174 __END_DECLS 175 176 #endif /* !_PWD_H_ */ 177