pwgr.c revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: pwgr.c,v 1.1.2.2 2012/04/17 00:09:19 yamt Exp $ */ 2 1.1.2.2 yamt /* 3 1.1.2.2 yamt * Copyright (c) 2007 The NetBSD Foundation, Inc. 4 1.1.2.2 yamt * All rights reserved. 5 1.1.2.2 yamt * 6 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 yamt * modification, are permitted provided that the following conditions 8 1.1.2.2 yamt * are met: 9 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 14 1.1.2.2 yamt * 15 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 1.1.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 1.1.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 1.1.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 1.1.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 1.1.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 1.1.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 1.1.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 1.1.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 1.1.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 1.1.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 26 1.1.2.2 yamt */ 27 1.1.2.2 yamt 28 1.1.2.2 yamt /* 29 1.1.2.2 yamt * This file implements replacements for all user/group-related functions 30 1.1.2.2 yamt * called by id(1). It provides fake but deterministic user and group 31 1.1.2.2 yamt * information. The details are as such: 32 1.1.2.2 yamt * User root, uid 0, primary group 0 (wheel). 33 1.1.2.2 yamt * User test, uid 100, primary group 100 (users), secondary group 0 (wheel). 34 1.1.2.2 yamt */ 35 1.1.2.2 yamt 36 1.1.2.2 yamt #include <sys/types.h> 37 1.1.2.2 yamt 38 1.1.2.2 yamt #include <errno.h> 39 1.1.2.2 yamt #include <grp.h> 40 1.1.2.2 yamt #include <pwd.h> 41 1.1.2.2 yamt #include <stdlib.h> 42 1.1.2.2 yamt #include <unistd.h> 43 1.1.2.2 yamt #include <string.h> 44 1.1.2.2 yamt 45 1.1.2.2 yamt char Login[16]; 46 1.1.2.2 yamt struct group GrEntry; 47 1.1.2.2 yamt struct passwd PwEntry; 48 1.1.2.2 yamt 49 1.1.2.2 yamt gid_t 50 1.1.2.2 yamt getgid(void) 51 1.1.2.2 yamt { 52 1.1.2.2 yamt return 100; 53 1.1.2.2 yamt } 54 1.1.2.2 yamt 55 1.1.2.2 yamt gid_t 56 1.1.2.2 yamt getegid(void) 57 1.1.2.2 yamt { 58 1.1.2.2 yamt if (getenv("LIBFAKE_EGID_ROOT") != NULL) 59 1.1.2.2 yamt return 0; 60 1.1.2.2 yamt else 61 1.1.2.2 yamt return 100; 62 1.1.2.2 yamt } 63 1.1.2.2 yamt 64 1.1.2.2 yamt uid_t 65 1.1.2.2 yamt getuid(void) 66 1.1.2.2 yamt { 67 1.1.2.2 yamt return 100; 68 1.1.2.2 yamt } 69 1.1.2.2 yamt 70 1.1.2.2 yamt uid_t 71 1.1.2.2 yamt geteuid(void) 72 1.1.2.2 yamt { 73 1.1.2.2 yamt if (getenv("LIBFAKE_EUID_ROOT") != NULL) 74 1.1.2.2 yamt return 0; 75 1.1.2.2 yamt else 76 1.1.2.2 yamt return 100; 77 1.1.2.2 yamt } 78 1.1.2.2 yamt 79 1.1.2.2 yamt char * 80 1.1.2.2 yamt getlogin(void) 81 1.1.2.2 yamt { 82 1.1.2.2 yamt strcpy(Login, "test"); 83 1.1.2.2 yamt return Login; 84 1.1.2.2 yamt } 85 1.1.2.2 yamt 86 1.1.2.2 yamt struct group * 87 1.1.2.2 yamt getgrgid(gid_t gid) 88 1.1.2.2 yamt { 89 1.1.2.2 yamt struct group *g = &GrEntry; 90 1.1.2.2 yamt 91 1.1.2.2 yamt memset(g, 0, sizeof(*g)); 92 1.1.2.2 yamt if (gid == 0) { 93 1.1.2.2 yamt g->gr_name = __UNCONST("wheel"); 94 1.1.2.2 yamt g->gr_gid = 0; 95 1.1.2.2 yamt } else if (gid == 100) { 96 1.1.2.2 yamt g->gr_name = __UNCONST("users"); 97 1.1.2.2 yamt g->gr_gid = 100; 98 1.1.2.2 yamt } else 99 1.1.2.2 yamt g = NULL; 100 1.1.2.2 yamt 101 1.1.2.2 yamt return g; 102 1.1.2.2 yamt } 103 1.1.2.2 yamt 104 1.1.2.2 yamt int 105 1.1.2.2 yamt getgrouplist(const char *name, gid_t basegid, gid_t *groups, int *ngroups) 106 1.1.2.2 yamt { 107 1.1.2.2 yamt int cnt, ret; 108 1.1.2.2 yamt 109 1.1.2.2 yamt if (strcmp(name, "root") == 0) { 110 1.1.2.2 yamt if (*ngroups >= 1) { 111 1.1.2.2 yamt groups[0] = basegid; 112 1.1.2.2 yamt cnt = 1; 113 1.1.2.2 yamt } 114 1.1.2.2 yamt 115 1.1.2.2 yamt ret = (*ngroups >= cnt) ? 0 : -1; 116 1.1.2.2 yamt *ngroups = cnt; 117 1.1.2.2 yamt } else if (strcmp(name, "test") == 0) { 118 1.1.2.2 yamt if (*ngroups >= 1) { 119 1.1.2.2 yamt groups[0] = basegid; 120 1.1.2.2 yamt cnt = 1; 121 1.1.2.2 yamt } 122 1.1.2.2 yamt 123 1.1.2.2 yamt if (*ngroups >= 2) { 124 1.1.2.2 yamt groups[1] = 0; 125 1.1.2.2 yamt cnt = 2; 126 1.1.2.2 yamt } 127 1.1.2.2 yamt 128 1.1.2.2 yamt ret = (*ngroups >= cnt) ? 0 : -1; 129 1.1.2.2 yamt *ngroups = cnt; 130 1.1.2.2 yamt } else 131 1.1.2.2 yamt ret = -1; 132 1.1.2.2 yamt 133 1.1.2.2 yamt return ret; 134 1.1.2.2 yamt } 135 1.1.2.2 yamt 136 1.1.2.2 yamt int 137 1.1.2.2 yamt getgroups(int gidsetlen, gid_t *gidset) 138 1.1.2.2 yamt { 139 1.1.2.2 yamt if (gidsetlen < 2) { 140 1.1.2.2 yamt errno = EINVAL; 141 1.1.2.2 yamt return -1; 142 1.1.2.2 yamt } 143 1.1.2.2 yamt 144 1.1.2.2 yamt gidset[0] = 100; 145 1.1.2.2 yamt gidset[1] = 0; 146 1.1.2.2 yamt return 2; 147 1.1.2.2 yamt } 148 1.1.2.2 yamt 149 1.1.2.2 yamt struct passwd * 150 1.1.2.2 yamt getpwnam(const char *login) 151 1.1.2.2 yamt { 152 1.1.2.2 yamt struct passwd *p = &PwEntry; 153 1.1.2.2 yamt 154 1.1.2.2 yamt memset(p, 0, sizeof(*p)); 155 1.1.2.2 yamt if (strcmp(login, "root") == 0) { 156 1.1.2.2 yamt p->pw_name = __UNCONST("root"); 157 1.1.2.2 yamt p->pw_uid = 0; 158 1.1.2.2 yamt p->pw_gid = 0; 159 1.1.2.2 yamt } else if (strcmp(login, "test") == 0) { 160 1.1.2.2 yamt p->pw_name = __UNCONST("test"); 161 1.1.2.2 yamt p->pw_uid = 100; 162 1.1.2.2 yamt p->pw_gid = 100; 163 1.1.2.2 yamt } else 164 1.1.2.2 yamt p = NULL; 165 1.1.2.2 yamt 166 1.1.2.2 yamt return p; 167 1.1.2.2 yamt } 168 1.1.2.2 yamt 169 1.1.2.2 yamt struct passwd * 170 1.1.2.2 yamt getpwuid(uid_t uid) 171 1.1.2.2 yamt { 172 1.1.2.2 yamt struct passwd *p = &PwEntry; 173 1.1.2.2 yamt 174 1.1.2.2 yamt memset(p, 0, sizeof(*p)); 175 1.1.2.2 yamt if (uid == 0) { 176 1.1.2.2 yamt p->pw_name = __UNCONST("root"); 177 1.1.2.2 yamt p->pw_uid = 0; 178 1.1.2.2 yamt p->pw_gid = 0; 179 1.1.2.2 yamt } else if (uid == 100) { 180 1.1.2.2 yamt p->pw_name = __UNCONST("test"); 181 1.1.2.2 yamt p->pw_uid = 100; 182 1.1.2.2 yamt p->pw_gid = 100; 183 1.1.2.2 yamt } else 184 1.1.2.2 yamt p = NULL; 185 1.1.2.2 yamt 186 1.1.2.2 yamt return p; 187 1.1.2.2 yamt } 188
Indexes created Thu Oct 23 22:10:10 GMT 2025