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 37 #ifndef _PWD_H_ 38 #define _PWD_H_ 39 40 #include <sys/cdefs.h> 41 #include <sys/_types.h> 42 43 #ifndef _GID_T_DECLARED 44 typedef __gid_t gid_t; 45 #define _GID_T_DECLARED 46 #endif 47 48 #ifndef _TIME_T_DECLARED 49 typedef __time_t time_t; 50 #define _TIME_T_DECLARED 51 #endif 52 53 #ifndef _UID_T_DECLARED 54 typedef __uid_t uid_t; 55 #define _UID_T_DECLARED 56 #endif 57 58 #ifndef _SIZE_T_DECLARED 59 typedef __size_t size_t; 60 #define _SIZE_T_DECLARED 61 #endif 62 63 #define _PATH_PWD "/etc" 64 #define _PATH_PASSWD "/etc/passwd" 65 #define _PASSWD "passwd" 66 #define _PATH_MASTERPASSWD "/etc/master.passwd" 67 #define _MASTERPASSWD "master.passwd" 68 69 #define _PATH_MP_DB "/etc/pwd.db" 70 #define _MP_DB "pwd.db" 71 #define _PATH_SMP_DB "/etc/spwd.db" 72 #define _SMP_DB "spwd.db" 73 74 #define _PATH_PWD_MKDB "/usr/sbin/pwd_mkdb" 75 76 /* Historically, the keys in _PATH_MP_DB/_PATH_SMP_DB had the format 77 * `1 octet tag | key', where the tag is one of the _PW_KEY* values 78 * listed below. These values happen to be ASCII digits. Starting 79 * with FreeBSD 5.1, the tag is now still a single octet, but the 80 * upper 4 bits are interpreted as a version. Pre-FreeBSD 5.1 format 81 * entries are version `3' -- this conveniently results in the same 82 * key values as before. The new, architecture-independent entries 83 * are version `4'. 84 * As it happens, some applications read the database directly. 85 * (Bad app, no cookie!) Thus, we leave the _PW_KEY* symbols at their 86 * old pre-FreeBSD 5.1 values so these apps still work. Consequently 87 * we have to muck around a bit more to get the correct, versioned 88 * tag, and that is what the _PW_VERSIONED macro is about. 89 */ 90 91 #define _PW_VERSION_MASK '\xF0' 92 #define _PW_VERSIONED(x, v) ((unsigned char)(((x) & 0xCF) | ((v)<<4))) 93 94 #define _PW_KEYBYNAME '\x31' /* stored by name */ 95 #define _PW_KEYBYNUM '\x32' /* stored by entry in the "file" */ 96 #define _PW_KEYBYUID '\x33' /* stored by uid */ 97 #define _PW_KEYYPENABLED '\x34' /* YP is enabled */ 98 #define _PW_KEYYPBYNUM '\x35' /* special +@netgroup entries */ 99 100 /* The database also contains a key to indicate the format version of 101 * the entries therein. There may be other, older versioned entries 102 * as well. 103 */ 104 #define _PWD_VERSION_KEY "\xFF" "VERSION" 105 #define _PWD_CURRENT_VERSION '\x04' 106 107 #define _PASSWORD_EFMT1 '_' /* extended encryption format */ 108 109 #define _PASSWORD_LEN 128 /* max length, not counting NULL */ 110 111 struct passwd { 112 char *pw_name; /* user name */ 113 char *pw_passwd; /* encrypted password */ 114 uid_t pw_uid; /* user uid */ 115 gid_t pw_gid; /* user gid */ 116 time_t pw_change; /* password change time */ 117 char *pw_class; /* user access class */ 118 char *pw_gecos; /* Honeywell login info */ 119 char *pw_dir; /* home directory */ 120 char *pw_shell; /* default shell */ 121 time_t pw_expire; /* account expiration */ 122 int pw_fields; /* internal: fields filled in */ 123 }; 124 125 /* Mapping from fields to bits for pw_fields. */ 126 #define _PWF(x) (1 << x) 127 #define _PWF_NAME _PWF(0) 128 #define _PWF_PASSWD _PWF(1) 129 #define _PWF_UID _PWF(2) 130 #define _PWF_GID _PWF(3) 131 #define _PWF_CHANGE _PWF(4) 132 #define _PWF_CLASS _PWF(5) 133 #define _PWF_GECOS _PWF(6) 134 #define _PWF_DIR _PWF(7) 135 #define _PWF_SHELL _PWF(8) 136 #define _PWF_EXPIRE _PWF(9) 137 138 /* XXX These flags are bogus. With nsswitch, there are many 139 * possible sources and they cannot be represented in a small integer. 140 */ 141 #define _PWF_SOURCE 0x3000 142 #define _PWF_FILES 0x1000 143 #define _PWF_NIS 0x2000 144 #define _PWF_HESIOD 0x3000 145 146 __BEGIN_DECLS 147 struct passwd *getpwnam(const char *); 148 struct passwd *getpwuid(uid_t); 149 150 #if __XSI_VISIBLE >= 500 151 void endpwent(void); 152 struct passwd *getpwent(void); 153 void setpwent(void); 154 #endif 155 156 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 500 157 int getpwnam_r(const char *, struct passwd *, char *, size_t, 158 struct passwd **); 159 int getpwuid_r(uid_t, struct passwd *, char *, size_t, 160 struct passwd **); 161 #endif 162 163 #if __BSD_VISIBLE 164 int getpwent_r(struct passwd *, char *, size_t, struct passwd **); 165 int setpassent(int); 166 const char *user_from_uid(uid_t, int); 167 int uid_from_user(const char *, uid_t *); 168 int pwcache_userdb(int (*)(int), void (*)(void), 169 struct passwd * (*)(const char *), 170 struct passwd * (*)(uid_t)); 171 #endif 172 __END_DECLS 173 174 #endif /* !_PWD_H_ */ 175