1d6f907dcSJoerg Wunsch /*- 2ad7cf975SJoerg Wunsch * Copyright (C) 1996 3ad7cf975SJoerg Wunsch * David L. Nugent. All rights reserved. 4d6f907dcSJoerg Wunsch * 5d6f907dcSJoerg Wunsch * Redistribution and use in source and binary forms, with or without 6d6f907dcSJoerg Wunsch * modification, are permitted provided that the following conditions 7d6f907dcSJoerg Wunsch * are met: 8d6f907dcSJoerg Wunsch * 1. Redistributions of source code must retain the above copyright 9ad7cf975SJoerg Wunsch * notice, this list of conditions and the following disclaimer. 10d6f907dcSJoerg Wunsch * 2. Redistributions in binary form must reproduce the above copyright 11d6f907dcSJoerg Wunsch * notice, this list of conditions and the following disclaimer in the 12d6f907dcSJoerg Wunsch * documentation and/or other materials provided with the distribution. 13d6f907dcSJoerg Wunsch * 14ad7cf975SJoerg Wunsch * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15d6f907dcSJoerg Wunsch * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16d6f907dcSJoerg Wunsch * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17ad7cf975SJoerg Wunsch * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18d6f907dcSJoerg Wunsch * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19d6f907dcSJoerg Wunsch * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20d6f907dcSJoerg Wunsch * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21d6f907dcSJoerg Wunsch * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22d6f907dcSJoerg Wunsch * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23d6f907dcSJoerg Wunsch * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24d6f907dcSJoerg Wunsch * SUCH DAMAGE. 25d6f907dcSJoerg Wunsch * 262e3db6fbSDavid Nugent * $Id: pw_user.c,v 1.4 1996/12/17 01:43:30 davidn Exp $ 27d6f907dcSJoerg Wunsch */ 28d6f907dcSJoerg Wunsch 29d6f907dcSJoerg Wunsch #include <unistd.h> 30d6f907dcSJoerg Wunsch #include <fcntl.h> 31d6f907dcSJoerg Wunsch #include <ctype.h> 32d6f907dcSJoerg Wunsch #include <paths.h> 33d6f907dcSJoerg Wunsch #include <sys/param.h> 34d6f907dcSJoerg Wunsch #include <dirent.h> 35d6f907dcSJoerg Wunsch #include <termios.h> 36b7d2ba7cSDavid Nugent #include <sys/types.h> 37b7d2ba7cSDavid Nugent #include <sys/time.h> 38b7d2ba7cSDavid Nugent #include <sys/resource.h> 39b7d2ba7cSDavid Nugent #include <md5.h> 40d6f907dcSJoerg Wunsch #include "pw.h" 41d6f907dcSJoerg Wunsch #include "bitmap.h" 42d6f907dcSJoerg Wunsch #include "pwupd.h" 43d6f907dcSJoerg Wunsch 44d6f907dcSJoerg Wunsch static int print_user(struct passwd * pwd, int pretty); 45d6f907dcSJoerg Wunsch static uid_t pw_uidpolicy(struct userconf * cnf, struct cargs * args); 46d6f907dcSJoerg Wunsch static uid_t pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer); 47d6f907dcSJoerg Wunsch static time_t pw_pwdpolicy(struct userconf * cnf, struct cargs * args); 48d6f907dcSJoerg Wunsch static time_t pw_exppolicy(struct userconf * cnf, struct cargs * args); 49d6f907dcSJoerg Wunsch static char *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user); 50d6f907dcSJoerg Wunsch static char *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell); 51d6f907dcSJoerg Wunsch static char *pw_password(struct userconf * cnf, struct cargs * args, char const * user); 52d6f907dcSJoerg Wunsch static char *pw_checkname(char *name, int gecos); 53d6f907dcSJoerg Wunsch static char *shell_path(char const * path, char *shells[], char *sh); 54d6f907dcSJoerg Wunsch static void rmat(uid_t uid); 55d6f907dcSJoerg Wunsch 56d6f907dcSJoerg Wunsch /*- 57d6f907dcSJoerg Wunsch * -C config configuration file 58d6f907dcSJoerg Wunsch * -q quiet operation 59d6f907dcSJoerg Wunsch * -n name login name 60d6f907dcSJoerg Wunsch * -u uid user id 61d6f907dcSJoerg Wunsch * -c comment user name/comment 62d6f907dcSJoerg Wunsch * -d directory home directory 63d6f907dcSJoerg Wunsch * -e date account expiry date 64d6f907dcSJoerg Wunsch * -p date password expiry date 65d6f907dcSJoerg Wunsch * -g grp primary group 66d6f907dcSJoerg Wunsch * -G grp1,grp2 additional groups 67d6f907dcSJoerg Wunsch * -m [ -k dir ] create and set up home 68d6f907dcSJoerg Wunsch * -s shell name of login shell 69d6f907dcSJoerg Wunsch * -o duplicate uid ok 70d6f907dcSJoerg Wunsch * -L class user class 71d6f907dcSJoerg Wunsch * -l name new login name 72d6f907dcSJoerg Wunsch * -h fd password filehandle 73d6f907dcSJoerg Wunsch * -F force print or add 74d6f907dcSJoerg Wunsch * Setting defaults: 75d6f907dcSJoerg Wunsch * -D set user defaults 76d6f907dcSJoerg Wunsch * -b dir default home root dir 77d6f907dcSJoerg Wunsch * -e period default expiry period 78d6f907dcSJoerg Wunsch * -p period default password change period 79d6f907dcSJoerg Wunsch * -g group default group 80d6f907dcSJoerg Wunsch * -G grp1,grp2.. default additional groups 81d6f907dcSJoerg Wunsch * -L class default login class 82d6f907dcSJoerg Wunsch * -k dir default home skeleton 83d6f907dcSJoerg Wunsch * -s shell default shell 84d6f907dcSJoerg Wunsch * -w method default password method 85d6f907dcSJoerg Wunsch */ 86d6f907dcSJoerg Wunsch 87d6f907dcSJoerg Wunsch int 88d6f907dcSJoerg Wunsch pw_user(struct userconf * cnf, int mode, struct cargs * args) 89d6f907dcSJoerg Wunsch { 90d6f907dcSJoerg Wunsch char *p = NULL; 91d6f907dcSJoerg Wunsch struct carg *a_name; 92d6f907dcSJoerg Wunsch struct carg *a_uid; 93d6f907dcSJoerg Wunsch struct carg *arg; 94d6f907dcSJoerg Wunsch struct passwd *pwd = NULL; 95d6f907dcSJoerg Wunsch struct group *grp; 96d6f907dcSJoerg Wunsch struct stat st; 97d6f907dcSJoerg Wunsch char line[MAXPWLINE]; 98d6f907dcSJoerg Wunsch 99d6f907dcSJoerg Wunsch static struct passwd fakeuser = 100d6f907dcSJoerg Wunsch { 101d6f907dcSJoerg Wunsch NULL, 102d6f907dcSJoerg Wunsch "*", 103d6f907dcSJoerg Wunsch -1, 104d6f907dcSJoerg Wunsch -1, 105d6f907dcSJoerg Wunsch 0, 106d6f907dcSJoerg Wunsch "", 107d6f907dcSJoerg Wunsch "User &", 108d6f907dcSJoerg Wunsch "/bin/sh", 109d6f907dcSJoerg Wunsch 0, 110d6f907dcSJoerg Wunsch 0 111d6f907dcSJoerg Wunsch }; 112d6f907dcSJoerg Wunsch 113d6f907dcSJoerg Wunsch /* 11448aee7f3SJoerg Wunsch * With M_NEXT, we only need to return the 11548aee7f3SJoerg Wunsch * next uid to stdout 11648aee7f3SJoerg Wunsch */ 11748aee7f3SJoerg Wunsch if (mode == M_NEXT) 11848aee7f3SJoerg Wunsch { 11948aee7f3SJoerg Wunsch uid_t next = pw_uidpolicy(cnf, args); 12048aee7f3SJoerg Wunsch if (getarg(args, 'q')) 12148aee7f3SJoerg Wunsch return next; 12248aee7f3SJoerg Wunsch printf("%ld:", (long)next); 12348aee7f3SJoerg Wunsch pw_group(cnf, mode, args); 12448aee7f3SJoerg Wunsch return EXIT_SUCCESS; 12548aee7f3SJoerg Wunsch } 12648aee7f3SJoerg Wunsch 12748aee7f3SJoerg Wunsch /* 128d6f907dcSJoerg Wunsch * We can do all of the common legwork here 129d6f907dcSJoerg Wunsch */ 130d6f907dcSJoerg Wunsch 131d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'b')) != NULL) { 13248aee7f3SJoerg Wunsch cnf->home = arg->val; 13348aee7f3SJoerg Wunsch if (stat(cnf->home, &st) == -1 || !S_ISDIR(st.st_mode)) 13448aee7f3SJoerg Wunsch cmderr(EX_OSFILE, "root home `%s' is not a directory or does not exist\n", cnf->home); 135d6f907dcSJoerg Wunsch } 136d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'e')) != NULL) 137d6f907dcSJoerg Wunsch cnf->expire_days = atoi(arg->val); 138d6f907dcSJoerg Wunsch 139d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'p')) != NULL && arg->val) 140d6f907dcSJoerg Wunsch cnf->password_days = atoi(arg->val); 141d6f907dcSJoerg Wunsch 142d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'g')) != NULL) { 143d6f907dcSJoerg Wunsch p = arg->val; 144d6f907dcSJoerg Wunsch if ((grp = getgrnam(p)) == NULL) { 145d6f907dcSJoerg Wunsch if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 14648aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 147d6f907dcSJoerg Wunsch } 148d6f907dcSJoerg Wunsch cnf->default_group = newstr(grp->gr_name); 149d6f907dcSJoerg Wunsch } 150d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'L')) != NULL) 151d6f907dcSJoerg Wunsch cnf->default_class = pw_checkname(arg->val, 0); 152d6f907dcSJoerg Wunsch 153d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'G')) != NULL && arg->val) { 154d6f907dcSJoerg Wunsch int i = 0; 155d6f907dcSJoerg Wunsch 156d6f907dcSJoerg Wunsch for (p = strtok(arg->val, ", \t"); i < _UC_MAXGROUPS && p != NULL; p = strtok(NULL, ", \t")) { 157d6f907dcSJoerg Wunsch if ((grp = getgrnam(p)) == NULL) { 158d6f907dcSJoerg Wunsch if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 15948aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 160d6f907dcSJoerg Wunsch } 161d6f907dcSJoerg Wunsch cnf->groups[i++] = newstr(grp->gr_name); 162d6f907dcSJoerg Wunsch } 163d6f907dcSJoerg Wunsch while (i < _UC_MAXGROUPS) 164d6f907dcSJoerg Wunsch cnf->groups[i++] = NULL; 165d6f907dcSJoerg Wunsch } 166d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'k')) != NULL) { 167d6f907dcSJoerg Wunsch if (stat(cnf->dotdir = arg->val, &st) == -1 || S_ISDIR(st.st_mode)) 16848aee7f3SJoerg Wunsch cmderr(EX_OSFILE, "skeleton `%s' is not a directory or does not exist\n", cnf->dotdir); 169d6f907dcSJoerg Wunsch } 170d6f907dcSJoerg Wunsch if ((arg = getarg(args, 's')) != NULL) 171d6f907dcSJoerg Wunsch cnf->shell_default = arg->val; 172d6f907dcSJoerg Wunsch 173d6f907dcSJoerg Wunsch if (mode == M_ADD && getarg(args, 'D')) { 174d6f907dcSJoerg Wunsch if (getarg(args, 'n') != NULL) 17548aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "can't combine `-D' with `-n name'\n"); 176d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 177d6f907dcSJoerg Wunsch if ((cnf->min_uid = (uid_t) atoi(p)) == 0) 178d6f907dcSJoerg Wunsch cnf->min_uid = 1000; 179d6f907dcSJoerg Wunsch if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid) 180d6f907dcSJoerg Wunsch cnf->max_uid = 32000; 181d6f907dcSJoerg Wunsch } 182d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 183d6f907dcSJoerg Wunsch if ((cnf->min_gid = (gid_t) atoi(p)) == 0) 184d6f907dcSJoerg Wunsch cnf->min_gid = 1000; 185d6f907dcSJoerg Wunsch if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid) 186d6f907dcSJoerg Wunsch cnf->max_gid = 32000; 187d6f907dcSJoerg Wunsch } 188d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'w')) != NULL) 189d6f907dcSJoerg Wunsch cnf->default_password = boolean_val(arg->val, cnf->default_password); 190d6f907dcSJoerg Wunsch 191d6f907dcSJoerg Wunsch arg = getarg(args, 'C'); 192d6f907dcSJoerg Wunsch if (write_userconfig(arg ? arg->val : NULL)) 19348aee7f3SJoerg Wunsch return EXIT_SUCCESS; 194d6f907dcSJoerg Wunsch perror("config update"); 19548aee7f3SJoerg Wunsch return EX_IOERR; 196d6f907dcSJoerg Wunsch } 197d6f907dcSJoerg Wunsch if (mode == M_PRINT && getarg(args, 'a')) { 19848aee7f3SJoerg Wunsch int pretty = getarg(args, 'P') != NULL; 199d6f907dcSJoerg Wunsch 200d6f907dcSJoerg Wunsch setpwent(); 201d6f907dcSJoerg Wunsch while ((pwd = getpwent()) != NULL) 202d6f907dcSJoerg Wunsch print_user(pwd, pretty); 203d6f907dcSJoerg Wunsch endpwent(); 20448aee7f3SJoerg Wunsch return EXIT_SUCCESS; 205d6f907dcSJoerg Wunsch } 206d6f907dcSJoerg Wunsch if ((a_name = getarg(args, 'n')) != NULL) 207d6f907dcSJoerg Wunsch pwd = getpwnam(pw_checkname(a_name->val, 0)); 208d6f907dcSJoerg Wunsch a_uid = getarg(args, 'u'); 209d6f907dcSJoerg Wunsch 210d6f907dcSJoerg Wunsch if (a_uid == NULL) { 211d6f907dcSJoerg Wunsch if (a_name == NULL) 21248aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "user name or id required\n"); 213d6f907dcSJoerg Wunsch 214d6f907dcSJoerg Wunsch /* 215d6f907dcSJoerg Wunsch * Determine whether 'n' switch is name or uid - we don't 216d6f907dcSJoerg Wunsch * really don't really care which we have, but we need to 217d6f907dcSJoerg Wunsch * know. 218d6f907dcSJoerg Wunsch */ 219d6f907dcSJoerg Wunsch if (mode != M_ADD && pwd == NULL && isdigit(*a_name->val) && atoi(a_name->val) > 0) { /* Assume uid */ 220d6f907dcSJoerg Wunsch (a_uid = a_name)->ch = 'u'; 221d6f907dcSJoerg Wunsch a_name = NULL; 222d6f907dcSJoerg Wunsch } 223d6f907dcSJoerg Wunsch } 224d6f907dcSJoerg Wunsch /* 225d6f907dcSJoerg Wunsch * Update, delete & print require that the user exists 226d6f907dcSJoerg Wunsch */ 227d6f907dcSJoerg Wunsch if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) { 228d6f907dcSJoerg Wunsch if (a_name == NULL && pwd == NULL) /* Try harder */ 229d6f907dcSJoerg Wunsch pwd = getpwuid(atoi(a_uid->val)); 230d6f907dcSJoerg Wunsch 231d6f907dcSJoerg Wunsch if (pwd == NULL) { 232d6f907dcSJoerg Wunsch if (mode == M_PRINT && getarg(args, 'F')) { 233d6f907dcSJoerg Wunsch fakeuser.pw_name = a_name ? a_name->val : "nouser"; 234d6f907dcSJoerg Wunsch fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1; 23548aee7f3SJoerg Wunsch return print_user(&fakeuser, getarg(args, 'P') != NULL); 236d6f907dcSJoerg Wunsch } 237d6f907dcSJoerg Wunsch if (a_name == NULL) 23848aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "no such uid `%s'\n", a_uid->val); 23948aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "no such user `%s'\n", a_name->val); 240d6f907dcSJoerg Wunsch } 241d6f907dcSJoerg Wunsch if (a_name == NULL) /* May be needed later */ 242d6f907dcSJoerg Wunsch a_name = addarg(args, 'n', newstr(pwd->pw_name)); 243d6f907dcSJoerg Wunsch 244d6f907dcSJoerg Wunsch /* 245d6f907dcSJoerg Wunsch * Handle deletions now 246d6f907dcSJoerg Wunsch */ 247d6f907dcSJoerg Wunsch if (mode == M_DELETE) { 248d6f907dcSJoerg Wunsch char file[MAXPATHLEN]; 249d6f907dcSJoerg Wunsch char home[MAXPATHLEN]; 250d6f907dcSJoerg Wunsch uid_t uid = pwd->pw_uid; 251d6f907dcSJoerg Wunsch 252d6f907dcSJoerg Wunsch if (strcmp(pwd->pw_name, "root") == 0) 25348aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "cannot remove user 'root'\n"); 254d6f907dcSJoerg Wunsch 255d6f907dcSJoerg Wunsch /* 256d6f907dcSJoerg Wunsch * Remove crontabs 257d6f907dcSJoerg Wunsch */ 258d6f907dcSJoerg Wunsch sprintf(file, "/var/cron/tabs/%s", pwd->pw_name); 259d6f907dcSJoerg Wunsch if (access(file, F_OK) == 0) { 260d6f907dcSJoerg Wunsch sprintf(file, "crontab -u %s -r", pwd->pw_name); 261d6f907dcSJoerg Wunsch system(file); 262d6f907dcSJoerg Wunsch } 263d6f907dcSJoerg Wunsch /* 264d6f907dcSJoerg Wunsch * Save these for later, since contents of pwd may be 265d6f907dcSJoerg Wunsch * invalidated by deletion 266d6f907dcSJoerg Wunsch */ 267d6f907dcSJoerg Wunsch sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 268d6f907dcSJoerg Wunsch strncpy(home, pwd->pw_dir, sizeof home); 269d6f907dcSJoerg Wunsch home[sizeof home - 1] = '\0'; 270d6f907dcSJoerg Wunsch 271d6f907dcSJoerg Wunsch if (!delpwent(pwd)) 27248aee7f3SJoerg Wunsch cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno)); 273d6f907dcSJoerg Wunsch editgroups(a_name->val, NULL); 274d6f907dcSJoerg Wunsch 275d6f907dcSJoerg Wunsch pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid); 276d6f907dcSJoerg Wunsch 277d6f907dcSJoerg Wunsch /* 278d6f907dcSJoerg Wunsch * Remove mail file 279d6f907dcSJoerg Wunsch */ 280d6f907dcSJoerg Wunsch remove(file); 281d6f907dcSJoerg Wunsch 282d6f907dcSJoerg Wunsch /* 283d6f907dcSJoerg Wunsch * Remove at jobs 284d6f907dcSJoerg Wunsch */ 285d6f907dcSJoerg Wunsch if (getpwuid(uid) == NULL) 286d6f907dcSJoerg Wunsch rmat(uid); 287d6f907dcSJoerg Wunsch 288d6f907dcSJoerg Wunsch /* 289d6f907dcSJoerg Wunsch * Remove home directory and contents 290d6f907dcSJoerg Wunsch */ 291d6f907dcSJoerg Wunsch if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) { 292d6f907dcSJoerg Wunsch if (stat(home, &st) != -1) { 293d6f907dcSJoerg Wunsch rm_r(home, uid); 294d6f907dcSJoerg Wunsch pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved", 295d6f907dcSJoerg Wunsch a_name->val, (long) uid, home, 296d6f907dcSJoerg Wunsch stat(home, &st) == -1 ? "" : "not completely "); 297d6f907dcSJoerg Wunsch } 298d6f907dcSJoerg Wunsch } 29948aee7f3SJoerg Wunsch return EXIT_SUCCESS; 300d6f907dcSJoerg Wunsch } else if (mode == M_PRINT) 30148aee7f3SJoerg Wunsch return print_user(pwd, getarg(args, 'P') != NULL); 302d6f907dcSJoerg Wunsch 303d6f907dcSJoerg Wunsch /* 304d6f907dcSJoerg Wunsch * The rest is edit code 305d6f907dcSJoerg Wunsch */ 306d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'l')) != NULL) { 307d6f907dcSJoerg Wunsch if (strcmp(pwd->pw_name, "root") == 0) 30848aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "can't rename `root' account\n"); 309d6f907dcSJoerg Wunsch pwd->pw_name = pw_checkname(arg->val, 0); 310d6f907dcSJoerg Wunsch } 311d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'u')) != NULL && isdigit(*arg->val)) { 312d6f907dcSJoerg Wunsch pwd->pw_uid = (uid_t) atol(arg->val); 313d6f907dcSJoerg Wunsch if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 31448aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "can't change uid of `root' account\n"); 315d6f907dcSJoerg Wunsch if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 316d6f907dcSJoerg Wunsch fprintf(stderr, "WARNING: account `%s' will have a uid of 0 (superuser access!)\n", pwd->pw_name); 317d6f907dcSJoerg Wunsch } 318d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) /* Already checked this */ 319d6f907dcSJoerg Wunsch pwd->pw_gid = (gid_t) getgrnam(cnf->default_group)->gr_gid; 320d6f907dcSJoerg Wunsch 321d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'p')) != NULL) { 322d6f907dcSJoerg Wunsch if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 323d6f907dcSJoerg Wunsch pwd->pw_change = 0; 324d6f907dcSJoerg Wunsch else { 325d6f907dcSJoerg Wunsch time_t now = time(NULL); 326d6f907dcSJoerg Wunsch time_t expire = parse_date(now, arg->val); 327d6f907dcSJoerg Wunsch 328d6f907dcSJoerg Wunsch if (now == expire) 32948aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "Invalid password change date `%s'\n", arg->val); 330d6f907dcSJoerg Wunsch pwd->pw_change = expire; 331d6f907dcSJoerg Wunsch } 332d6f907dcSJoerg Wunsch } 33348aee7f3SJoerg Wunsch if ((arg = getarg(args, 'e')) != NULL) { 334d6f907dcSJoerg Wunsch if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 335d6f907dcSJoerg Wunsch pwd->pw_expire = 0; 336d6f907dcSJoerg Wunsch else { 337d6f907dcSJoerg Wunsch time_t now = time(NULL); 338d6f907dcSJoerg Wunsch time_t expire = parse_date(now, arg->val); 339d6f907dcSJoerg Wunsch 340d6f907dcSJoerg Wunsch if (now == expire) 34148aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "Invalid account expiry date `%s'\n", arg->val); 342d6f907dcSJoerg Wunsch pwd->pw_expire = expire; 343d6f907dcSJoerg Wunsch } 344d6f907dcSJoerg Wunsch } 345d6f907dcSJoerg Wunsch if ((arg = getarg(args, 's')) != NULL) 346d6f907dcSJoerg Wunsch pwd->pw_shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 347d6f907dcSJoerg Wunsch 348d6f907dcSJoerg Wunsch if (getarg(args, 'L')) 349d6f907dcSJoerg Wunsch pwd->pw_class = cnf->default_class; 350d6f907dcSJoerg Wunsch 35148aee7f3SJoerg Wunsch if ((arg = getarg(args, 'w')) != NULL && getarg(args, 'h') == NULL) 35248aee7f3SJoerg Wunsch pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 35348aee7f3SJoerg Wunsch 354d6f907dcSJoerg Wunsch } else { 355d6f907dcSJoerg Wunsch if (a_name == NULL) /* Required */ 35648aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "login name required\n"); 357d6f907dcSJoerg Wunsch else if ((pwd = getpwnam(a_name->val)) != NULL) /* Exists */ 35848aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "login name `%s' already exists\n", a_name->val); 359d6f907dcSJoerg Wunsch 360d6f907dcSJoerg Wunsch /* 361d6f907dcSJoerg Wunsch * Now, set up defaults for a new user 362d6f907dcSJoerg Wunsch */ 363d6f907dcSJoerg Wunsch pwd = &fakeuser; 364d6f907dcSJoerg Wunsch pwd->pw_name = a_name->val; 365d6f907dcSJoerg Wunsch pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 366d6f907dcSJoerg Wunsch pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 367d6f907dcSJoerg Wunsch pwd->pw_uid = pw_uidpolicy(cnf, args); 368d6f907dcSJoerg Wunsch pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid); 369d6f907dcSJoerg Wunsch pwd->pw_change = pw_pwdpolicy(cnf, args); 370d6f907dcSJoerg Wunsch pwd->pw_expire = pw_exppolicy(cnf, args); 371d6f907dcSJoerg Wunsch pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 372d6f907dcSJoerg Wunsch pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 373d6f907dcSJoerg Wunsch 374d6f907dcSJoerg Wunsch if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 375d6f907dcSJoerg Wunsch fprintf(stderr, "WARNING: new account `%s' has a uid of 0 (superuser access!)\n", pwd->pw_name); 376d6f907dcSJoerg Wunsch } 377d6f907dcSJoerg Wunsch 378d6f907dcSJoerg Wunsch /* 379d6f907dcSJoerg Wunsch * Shared add/edit code 380d6f907dcSJoerg Wunsch */ 381d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'c')) != NULL) 382d6f907dcSJoerg Wunsch pwd->pw_gecos = pw_checkname(arg->val, 1); 383d6f907dcSJoerg Wunsch 384d6f907dcSJoerg Wunsch if ((arg = getarg(args, 'h')) != NULL) { 385d6f907dcSJoerg Wunsch if (strcmp(arg->val, "-") == 0) 386d6f907dcSJoerg Wunsch pwd->pw_passwd = "*"; /* No access */ 387d6f907dcSJoerg Wunsch else { 388d6f907dcSJoerg Wunsch int fd = atoi(arg->val); 389d6f907dcSJoerg Wunsch int b; 390d6f907dcSJoerg Wunsch int istty = isatty(fd); 391d6f907dcSJoerg Wunsch struct termios t; 392d6f907dcSJoerg Wunsch 393d6f907dcSJoerg Wunsch if (istty) { 394d6f907dcSJoerg Wunsch if (tcgetattr(fd, &t) == -1) 395d6f907dcSJoerg Wunsch istty = 0; 396d6f907dcSJoerg Wunsch else { 397d6f907dcSJoerg Wunsch struct termios n = t; 398d6f907dcSJoerg Wunsch 399d6f907dcSJoerg Wunsch /* Disable echo */ 400d6f907dcSJoerg Wunsch n.c_lflag &= ~(ECHO); 401d6f907dcSJoerg Wunsch tcsetattr(fd, TCSANOW, &n); 402d6f907dcSJoerg Wunsch printf("%sassword for user %s:", (mode == M_UPDATE) ? "New p" : "P", pwd->pw_name); 403d6f907dcSJoerg Wunsch fflush(stdout); 404d6f907dcSJoerg Wunsch } 405d6f907dcSJoerg Wunsch } 406d6f907dcSJoerg Wunsch b = read(fd, line, sizeof(line) - 1); 407d6f907dcSJoerg Wunsch if (istty) { /* Restore state */ 408d6f907dcSJoerg Wunsch tcsetattr(fd, TCSANOW, &t); 409d6f907dcSJoerg Wunsch fputc('\n', stdout); 410d6f907dcSJoerg Wunsch fflush(stdout); 411d6f907dcSJoerg Wunsch } 412d6f907dcSJoerg Wunsch if (b < 0) { 413d6f907dcSJoerg Wunsch perror("-h file descriptor"); 41448aee7f3SJoerg Wunsch return EX_IOERR; 415d6f907dcSJoerg Wunsch } 416d6f907dcSJoerg Wunsch line[b] = '\0'; 417d6f907dcSJoerg Wunsch if ((p = strpbrk(line, " \t\r\n")) != NULL) 418d6f907dcSJoerg Wunsch *p = '\0'; 419d6f907dcSJoerg Wunsch if (!*line) 42048aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd); 421d6f907dcSJoerg Wunsch pwd->pw_passwd = pw_pwcrypt(line); 422d6f907dcSJoerg Wunsch } 423d6f907dcSJoerg Wunsch } 42448aee7f3SJoerg Wunsch 42548aee7f3SJoerg Wunsch /* 42648aee7f3SJoerg Wunsch * Special case: -N only displays & exits 42748aee7f3SJoerg Wunsch */ 42848aee7f3SJoerg Wunsch if (getarg(args, 'N') != NULL) 42948aee7f3SJoerg Wunsch return print_user(pwd, getarg(args, 'P') != NULL); 43048aee7f3SJoerg Wunsch 431d6f907dcSJoerg Wunsch if ((mode == M_ADD && !addpwent(pwd)) || 432d6f907dcSJoerg Wunsch (mode == M_UPDATE && !chgpwent(a_name->val, pwd))) { 433d6f907dcSJoerg Wunsch perror("password update"); 43448aee7f3SJoerg Wunsch return EX_IOERR; 435d6f907dcSJoerg Wunsch } 436d6f907dcSJoerg Wunsch /* 437d6f907dcSJoerg Wunsch * Ok, user is created or changed - now edit group file 438d6f907dcSJoerg Wunsch */ 439d6f907dcSJoerg Wunsch 440d6f907dcSJoerg Wunsch if (mode == M_ADD || getarg(args, 'G') != NULL) 441d6f907dcSJoerg Wunsch editgroups(pwd->pw_name, cnf->groups); 442d6f907dcSJoerg Wunsch 443d6f907dcSJoerg Wunsch /* pwd may have been invalidated */ 444d6f907dcSJoerg Wunsch if ((pwd = getpwnam(a_name->val)) == NULL) 44548aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "user '%s' disappeared during update\n", a_name->val); 446d6f907dcSJoerg Wunsch 447d6f907dcSJoerg Wunsch grp = getgrgid(pwd->pw_gid); 448d6f907dcSJoerg Wunsch pw_log(cnf, mode, W_USER, "%s(%ld):%s(%d):%s:%s:%s", 449d6f907dcSJoerg Wunsch pwd->pw_name, (long) pwd->pw_uid, 450d6f907dcSJoerg Wunsch grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1), 451d6f907dcSJoerg Wunsch pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 452d6f907dcSJoerg Wunsch 453d6f907dcSJoerg Wunsch /* 454d6f907dcSJoerg Wunsch * If adding, let's touch and chown the user's mail file. This is not 455d6f907dcSJoerg Wunsch * strictly necessary under BSD with a 0755 maildir but it also 456d6f907dcSJoerg Wunsch * doesn't hurt anything to create the empty mailfile 457d6f907dcSJoerg Wunsch */ 458d6f907dcSJoerg Wunsch if (mode == M_ADD) { 459d6f907dcSJoerg Wunsch FILE *fp; 460d6f907dcSJoerg Wunsch 461d6f907dcSJoerg Wunsch sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 462d6f907dcSJoerg Wunsch close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 463d6f907dcSJoerg Wunsch * mtime */ 464d6f907dcSJoerg Wunsch chown(line, pwd->pw_uid, pwd->pw_gid); 465d6f907dcSJoerg Wunsch 466d6f907dcSJoerg Wunsch /* 467d6f907dcSJoerg Wunsch * Send mail to the new user as well, if we are asked to 468d6f907dcSJoerg Wunsch */ 469d6f907dcSJoerg Wunsch if (cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 470d6f907dcSJoerg Wunsch FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 471d6f907dcSJoerg Wunsch 472d6f907dcSJoerg Wunsch if (pfp == NULL) 473d6f907dcSJoerg Wunsch perror("sendmail"); 474d6f907dcSJoerg Wunsch else { 475d6f907dcSJoerg Wunsch fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 476d6f907dcSJoerg Wunsch while (fgets(line, sizeof(line), fp) != NULL) { 477d6f907dcSJoerg Wunsch /* Do substitutions? */ 478d6f907dcSJoerg Wunsch fputs(line, pfp); 479d6f907dcSJoerg Wunsch } 480d6f907dcSJoerg Wunsch pclose(pfp); 481d6f907dcSJoerg Wunsch pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent", 482d6f907dcSJoerg Wunsch pwd->pw_name, (long) pwd->pw_uid); 483d6f907dcSJoerg Wunsch } 484d6f907dcSJoerg Wunsch fclose(fp); 485d6f907dcSJoerg Wunsch } 486d6f907dcSJoerg Wunsch } 487d6f907dcSJoerg Wunsch /* 488d6f907dcSJoerg Wunsch * Finally, let's create and populate the user's home directory. Note 489d6f907dcSJoerg Wunsch * that this also `works' for editing users if -m is used, but 490d6f907dcSJoerg Wunsch * existing files will *not* be overwritten. 491d6f907dcSJoerg Wunsch */ 492d6f907dcSJoerg Wunsch if (getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 493d6f907dcSJoerg Wunsch copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid); 494d6f907dcSJoerg Wunsch pw_log(cnf, mode, W_USER, "%s(%ld) home %s made", 495d6f907dcSJoerg Wunsch pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir); 496d6f907dcSJoerg Wunsch } 49748aee7f3SJoerg Wunsch return EXIT_SUCCESS; 498d6f907dcSJoerg Wunsch } 499d6f907dcSJoerg Wunsch 500d6f907dcSJoerg Wunsch 501d6f907dcSJoerg Wunsch static uid_t 502d6f907dcSJoerg Wunsch pw_uidpolicy(struct userconf * cnf, struct cargs * args) 503d6f907dcSJoerg Wunsch { 504d6f907dcSJoerg Wunsch struct passwd *pwd; 505d6f907dcSJoerg Wunsch uid_t uid = (uid_t) - 1; 506d6f907dcSJoerg Wunsch struct carg *a_uid = getarg(args, 'u'); 507d6f907dcSJoerg Wunsch 508d6f907dcSJoerg Wunsch /* 509d6f907dcSJoerg Wunsch * Check the given uid, if any 510d6f907dcSJoerg Wunsch */ 511d6f907dcSJoerg Wunsch if (a_uid != NULL) { 512d6f907dcSJoerg Wunsch uid = (uid_t) atol(a_uid->val); 513d6f907dcSJoerg Wunsch 514d6f907dcSJoerg Wunsch if ((pwd = getpwuid(uid)) != NULL && getarg(args, 'o') == NULL) 51548aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "uid `%ld' has already been allocated\n", (long) pwd->pw_uid); 516d6f907dcSJoerg Wunsch } else { 517d6f907dcSJoerg Wunsch struct bitmap bm; 518d6f907dcSJoerg Wunsch 519d6f907dcSJoerg Wunsch /* 520d6f907dcSJoerg Wunsch * We need to allocate the next available uid under one of 521d6f907dcSJoerg Wunsch * two policies a) Grab the first unused uid b) Grab the 522d6f907dcSJoerg Wunsch * highest possible unused uid 523d6f907dcSJoerg Wunsch */ 524d6f907dcSJoerg Wunsch if (cnf->min_uid >= cnf->max_uid) { /* Sanity 525d6f907dcSJoerg Wunsch * claus^H^H^H^Hheck */ 526d6f907dcSJoerg Wunsch cnf->min_uid = 1000; 527d6f907dcSJoerg Wunsch cnf->max_uid = 32000; 528d6f907dcSJoerg Wunsch } 529d6f907dcSJoerg Wunsch bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 530d6f907dcSJoerg Wunsch 531d6f907dcSJoerg Wunsch /* 532d6f907dcSJoerg Wunsch * Now, let's fill the bitmap from the password file 533d6f907dcSJoerg Wunsch */ 534d6f907dcSJoerg Wunsch setpwent(); 535d6f907dcSJoerg Wunsch while ((pwd = getpwent()) != NULL) 536d6f907dcSJoerg Wunsch if (pwd->pw_uid >= (int) cnf->min_uid && pwd->pw_uid <= (int) cnf->max_uid) 537d6f907dcSJoerg Wunsch bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 538d6f907dcSJoerg Wunsch endpwent(); 539d6f907dcSJoerg Wunsch 540d6f907dcSJoerg Wunsch /* 541d6f907dcSJoerg Wunsch * Then apply the policy, with fallback to reuse if necessary 542d6f907dcSJoerg Wunsch */ 543d6f907dcSJoerg Wunsch if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 544d6f907dcSJoerg Wunsch uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 545d6f907dcSJoerg Wunsch 546d6f907dcSJoerg Wunsch /* 547d6f907dcSJoerg Wunsch * Another sanity check 548d6f907dcSJoerg Wunsch */ 549d6f907dcSJoerg Wunsch if (uid < cnf->min_uid || uid > cnf->max_uid) 55048aee7f3SJoerg Wunsch cmderr(EX_SOFTWARE, "unable to allocate a new uid - range fully used\n"); 551d6f907dcSJoerg Wunsch bm_dealloc(&bm); 552d6f907dcSJoerg Wunsch } 553d6f907dcSJoerg Wunsch return uid; 554d6f907dcSJoerg Wunsch } 555d6f907dcSJoerg Wunsch 556d6f907dcSJoerg Wunsch 557d6f907dcSJoerg Wunsch static uid_t 558d6f907dcSJoerg Wunsch pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer) 559d6f907dcSJoerg Wunsch { 560d6f907dcSJoerg Wunsch struct group *grp; 561d6f907dcSJoerg Wunsch gid_t gid = (uid_t) - 1; 562d6f907dcSJoerg Wunsch struct carg *a_gid = getarg(args, 'g'); 563d6f907dcSJoerg Wunsch 564d6f907dcSJoerg Wunsch /* 565d6f907dcSJoerg Wunsch * If no arg given, see if default can help out 566d6f907dcSJoerg Wunsch */ 567d6f907dcSJoerg Wunsch if (a_gid == NULL && cnf->default_group && *cnf->default_group) 568d6f907dcSJoerg Wunsch a_gid = addarg(args, 'g', cnf->default_group); 569d6f907dcSJoerg Wunsch 570d6f907dcSJoerg Wunsch /* 571d6f907dcSJoerg Wunsch * Check the given gid, if any 572d6f907dcSJoerg Wunsch */ 573d6f907dcSJoerg Wunsch setgrent(); 57448aee7f3SJoerg Wunsch if (a_gid != NULL) { 575d6f907dcSJoerg Wunsch if ((grp = getgrnam(a_gid->val)) == NULL) { 576d6f907dcSJoerg Wunsch gid = (gid_t) atol(a_gid->val); 577d6f907dcSJoerg Wunsch if ((gid == 0 && !isdigit(*a_gid->val)) || (grp = getgrgid(gid)) == NULL) 57848aee7f3SJoerg Wunsch cmderr(EX_NOUSER, "group `%s' is not defined\n", a_gid->val); 579d6f907dcSJoerg Wunsch } 580d6f907dcSJoerg Wunsch gid = grp->gr_gid; 58148aee7f3SJoerg Wunsch } else if ((grp = getgrnam(nam)) != NULL && grp->gr_mem[0] == NULL) { 58248aee7f3SJoerg Wunsch gid = grp->gr_gid; /* Already created? Use it anyway... */ 583d6f907dcSJoerg Wunsch } else { 584d6f907dcSJoerg Wunsch struct cargs grpargs; 585d6f907dcSJoerg Wunsch char tmp[32]; 586d6f907dcSJoerg Wunsch 587d6f907dcSJoerg Wunsch LIST_INIT(&grpargs); 588d6f907dcSJoerg Wunsch addarg(&grpargs, 'n', nam); 589d6f907dcSJoerg Wunsch 590d6f907dcSJoerg Wunsch /* 591d6f907dcSJoerg Wunsch * We need to auto-create a group with the user's name. We 592d6f907dcSJoerg Wunsch * can send all the appropriate output to our sister routine 593d6f907dcSJoerg Wunsch * bit first see if we can create a group with gid==uid so we 594d6f907dcSJoerg Wunsch * can keep the user and group ids in sync. We purposely do 595d6f907dcSJoerg Wunsch * NOT check the gid range if we can force the sync. If the 596d6f907dcSJoerg Wunsch * user's name dups an existing group, then the group add 597d6f907dcSJoerg Wunsch * function will happily handle that case for us and exit. 598d6f907dcSJoerg Wunsch */ 599d6f907dcSJoerg Wunsch if (getgrgid(prefer) == NULL) { 600d6f907dcSJoerg Wunsch sprintf(tmp, "%lu", (unsigned long) prefer); 601d6f907dcSJoerg Wunsch addarg(&grpargs, 'g', tmp); 602d6f907dcSJoerg Wunsch } 60348aee7f3SJoerg Wunsch if (getarg(args, 'N')) 60448aee7f3SJoerg Wunsch { 60548aee7f3SJoerg Wunsch addarg(&grpargs, 'N', NULL); 60648aee7f3SJoerg Wunsch addarg(&grpargs, 'q', NULL); 60748aee7f3SJoerg Wunsch gid = pw_group(cnf, M_NEXT, &grpargs); 608d6f907dcSJoerg Wunsch } 60948aee7f3SJoerg Wunsch else 61048aee7f3SJoerg Wunsch { 61148aee7f3SJoerg Wunsch pw_group(cnf, M_ADD, &grpargs); 612d6f907dcSJoerg Wunsch if ((grp = getgrnam(nam)) != NULL) 613d6f907dcSJoerg Wunsch gid = grp->gr_gid; 614d6f907dcSJoerg Wunsch } 61548aee7f3SJoerg Wunsch a_gid = grpargs.lh_first; 61648aee7f3SJoerg Wunsch while (a_gid != NULL) { 61748aee7f3SJoerg Wunsch struct carg *t = a_gid->list.le_next; 61848aee7f3SJoerg Wunsch LIST_REMOVE(a_gid, list); 61948aee7f3SJoerg Wunsch a_gid = t; 62048aee7f3SJoerg Wunsch } 62148aee7f3SJoerg Wunsch } 62248aee7f3SJoerg Wunsch endgrent(); 623d6f907dcSJoerg Wunsch return gid; 624d6f907dcSJoerg Wunsch } 625d6f907dcSJoerg Wunsch 626d6f907dcSJoerg Wunsch 627d6f907dcSJoerg Wunsch static time_t 628d6f907dcSJoerg Wunsch pw_pwdpolicy(struct userconf * cnf, struct cargs * args) 629d6f907dcSJoerg Wunsch { 630d6f907dcSJoerg Wunsch time_t result = 0; 631d6f907dcSJoerg Wunsch time_t now = time(NULL); 632d6f907dcSJoerg Wunsch struct carg *arg = getarg(args, 'e'); 633d6f907dcSJoerg Wunsch 634d6f907dcSJoerg Wunsch if (arg != NULL) { 635d6f907dcSJoerg Wunsch if ((result = parse_date(now, arg->val)) == now) 63648aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 637d6f907dcSJoerg Wunsch } else if (cnf->password_days > 0) 638d6f907dcSJoerg Wunsch result = now + ((long) cnf->password_days * 86400L); 639d6f907dcSJoerg Wunsch return result; 640d6f907dcSJoerg Wunsch } 641d6f907dcSJoerg Wunsch 642d6f907dcSJoerg Wunsch 643d6f907dcSJoerg Wunsch static time_t 644d6f907dcSJoerg Wunsch pw_exppolicy(struct userconf * cnf, struct cargs * args) 645d6f907dcSJoerg Wunsch { 646d6f907dcSJoerg Wunsch time_t result = 0; 647d6f907dcSJoerg Wunsch time_t now = time(NULL); 648d6f907dcSJoerg Wunsch struct carg *arg = getarg(args, 'e'); 649d6f907dcSJoerg Wunsch 650d6f907dcSJoerg Wunsch if (arg != NULL) { 651d6f907dcSJoerg Wunsch if ((result = parse_date(now, arg->val)) == now) 65248aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 653d6f907dcSJoerg Wunsch } else if (cnf->expire_days > 0) 654d6f907dcSJoerg Wunsch result = now + ((long) cnf->expire_days * 86400L); 655d6f907dcSJoerg Wunsch return result; 656d6f907dcSJoerg Wunsch } 657d6f907dcSJoerg Wunsch 658d6f907dcSJoerg Wunsch 659d6f907dcSJoerg Wunsch static char * 660d6f907dcSJoerg Wunsch pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 661d6f907dcSJoerg Wunsch { 662d6f907dcSJoerg Wunsch struct carg *arg = getarg(args, 'd'); 663d6f907dcSJoerg Wunsch 664d6f907dcSJoerg Wunsch if (arg) 665d6f907dcSJoerg Wunsch return arg->val; 666d6f907dcSJoerg Wunsch else { 667d6f907dcSJoerg Wunsch static char home[128]; 668d6f907dcSJoerg Wunsch 669d6f907dcSJoerg Wunsch if (cnf->home == NULL || *cnf->home == '\0') 67048aee7f3SJoerg Wunsch cmderr(EX_CONFIG, "no base home directory set\n"); 671d6f907dcSJoerg Wunsch sprintf(home, "%s/%s", cnf->home, user); 672d6f907dcSJoerg Wunsch return home; 673d6f907dcSJoerg Wunsch } 674d6f907dcSJoerg Wunsch } 675d6f907dcSJoerg Wunsch 676d6f907dcSJoerg Wunsch static char * 677d6f907dcSJoerg Wunsch shell_path(char const * path, char *shells[], char *sh) 678d6f907dcSJoerg Wunsch { 679d6f907dcSJoerg Wunsch if (sh != NULL && (*sh == '/' || *sh == '\0')) 680d6f907dcSJoerg Wunsch return sh; /* specified full path or forced none */ 681d6f907dcSJoerg Wunsch else { 682d6f907dcSJoerg Wunsch char *p; 683d6f907dcSJoerg Wunsch char paths[_UC_MAXLINE]; 684d6f907dcSJoerg Wunsch 685d6f907dcSJoerg Wunsch /* 686d6f907dcSJoerg Wunsch * We need to search paths 687d6f907dcSJoerg Wunsch */ 688d6f907dcSJoerg Wunsch strncpy(paths, path, sizeof paths); 689d6f907dcSJoerg Wunsch paths[sizeof paths - 1] = '\0'; 690d6f907dcSJoerg Wunsch for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 691d6f907dcSJoerg Wunsch int i; 692d6f907dcSJoerg Wunsch static char shellpath[256]; 693d6f907dcSJoerg Wunsch 694d6f907dcSJoerg Wunsch if (sh != NULL) { 695d6f907dcSJoerg Wunsch sprintf(shellpath, "%s/%s", p, sh); 696d6f907dcSJoerg Wunsch if (access(shellpath, X_OK) == 0) 697d6f907dcSJoerg Wunsch return shellpath; 698d6f907dcSJoerg Wunsch } else 699d6f907dcSJoerg Wunsch for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 700d6f907dcSJoerg Wunsch sprintf(shellpath, "%s/%s", p, shells[i]); 701d6f907dcSJoerg Wunsch if (access(shellpath, X_OK) == 0) 702d6f907dcSJoerg Wunsch return shellpath; 703d6f907dcSJoerg Wunsch } 704d6f907dcSJoerg Wunsch } 705d6f907dcSJoerg Wunsch if (sh == NULL) 70648aee7f3SJoerg Wunsch cmderr(EX_OSFILE, "can't find shell `%s' in shell paths\n", sh); 70748aee7f3SJoerg Wunsch cmderr(EX_CONFIG, "no default shell available or defined\n"); 708d6f907dcSJoerg Wunsch return NULL; 709d6f907dcSJoerg Wunsch } 710d6f907dcSJoerg Wunsch } 711d6f907dcSJoerg Wunsch 712d6f907dcSJoerg Wunsch 713d6f907dcSJoerg Wunsch static char * 714d6f907dcSJoerg Wunsch pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 715d6f907dcSJoerg Wunsch { 716d6f907dcSJoerg Wunsch char *sh = newshell; 717d6f907dcSJoerg Wunsch struct carg *arg = getarg(args, 's'); 718d6f907dcSJoerg Wunsch 719d6f907dcSJoerg Wunsch if (newshell == NULL && arg != NULL) 720d6f907dcSJoerg Wunsch sh = arg->val; 721d6f907dcSJoerg Wunsch return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 722d6f907dcSJoerg Wunsch } 723d6f907dcSJoerg Wunsch 724d6f907dcSJoerg Wunsch static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ."; 725d6f907dcSJoerg Wunsch 726d6f907dcSJoerg Wunsch char * 727d6f907dcSJoerg Wunsch pw_pwcrypt(char *password) 728d6f907dcSJoerg Wunsch { 729d6f907dcSJoerg Wunsch int i; 730d6f907dcSJoerg Wunsch char salt[12]; 731d6f907dcSJoerg Wunsch 732d6f907dcSJoerg Wunsch static char buf[256]; 733d6f907dcSJoerg Wunsch 734d6f907dcSJoerg Wunsch /* 735d6f907dcSJoerg Wunsch * Calculate a salt value 736d6f907dcSJoerg Wunsch */ 737b7d2ba7cSDavid Nugent srandom((unsigned) (time(NULL) ^ getpid())); 738d6f907dcSJoerg Wunsch for (i = 0; i < 8; i++) 739d6f907dcSJoerg Wunsch salt[i] = chars[random() % 63]; 740d6f907dcSJoerg Wunsch salt[i] = '\0'; 741d6f907dcSJoerg Wunsch 742d6f907dcSJoerg Wunsch return strcpy(buf, crypt(password, salt)); 743d6f907dcSJoerg Wunsch } 744d6f907dcSJoerg Wunsch 7452e3db6fbSDavid Nugent #if defined(__FreeBSD__) 7462e3db6fbSDavid Nugent 7472e3db6fbSDavid Nugent #if defined(USE_MD5RAND) 748b7d2ba7cSDavid Nugent u_char * 7492e3db6fbSDavid Nugent pw_getrand(u_char *buf, int len) /* cryptographically secure rng */ 750b7d2ba7cSDavid Nugent { 7512e3db6fbSDavid Nugent int i; 7522e3db6fbSDavid Nugent for (i=0;i<len;i+=16) { 7532e3db6fbSDavid Nugent u_char ubuf[16]; 7542e3db6fbSDavid Nugent 755b7d2ba7cSDavid Nugent MD5_CTX md5_ctx; 756b7d2ba7cSDavid Nugent struct timeval tv, tvo; 757b7d2ba7cSDavid Nugent struct rusage ru; 758b7d2ba7cSDavid Nugent int n=0; 759b7d2ba7cSDavid Nugent int t; 7602e3db6fbSDavid Nugent 761b7d2ba7cSDavid Nugent MD5Init (&md5_ctx); 762b7d2ba7cSDavid Nugent t=getpid(); 763b7d2ba7cSDavid Nugent MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 764b7d2ba7cSDavid Nugent t=getppid(); 765b7d2ba7cSDavid Nugent MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 766b7d2ba7cSDavid Nugent gettimeofday (&tvo, NULL); 767b7d2ba7cSDavid Nugent do { 768b7d2ba7cSDavid Nugent getrusage (RUSAGE_SELF, &ru); 769b7d2ba7cSDavid Nugent MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru); 770b7d2ba7cSDavid Nugent gettimeofday (&tv, NULL); 771b7d2ba7cSDavid Nugent MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv); 772b7d2ba7cSDavid Nugent } while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000); 7732e3db6fbSDavid Nugent MD5Final (ubuf, &md5_ctx); 7742e3db6fbSDavid Nugent memcpy(buf+i, ubuf, MIN(16, len-n)); 775b7d2ba7cSDavid Nugent } 7762e3db6fbSDavid Nugent return buf; 7772e3db6fbSDavid Nugent } 7782e3db6fbSDavid Nugent 7792e3db6fbSDavid Nugent #else /* Use random device (preferred) */ 780b7d2ba7cSDavid Nugent 781b7d2ba7cSDavid Nugent static u_char * 782b7d2ba7cSDavid Nugent pw_getrand(u_char *buf, int len) 783b7d2ba7cSDavid Nugent { 784b7d2ba7cSDavid Nugent int fd; 785b7d2ba7cSDavid Nugent fd = open("/dev/urandom", O_RDONLY); 7862e3db6fbSDavid Nugent if (fd==-1) 7872e3db6fbSDavid Nugent cmderr(EX_OSFILE, "can't open /dev/urandom: %s\n", strerror(errno)); 7882e3db6fbSDavid Nugent else if (read(fd, buf, len)!=len) 7892e3db6fbSDavid Nugent cmderr(EX_IOERR, "read error on /dev/urandom\n"); 790b7d2ba7cSDavid Nugent close(fd); 791b7d2ba7cSDavid Nugent return buf; 792b7d2ba7cSDavid Nugent } 793d6f907dcSJoerg Wunsch 7942e3db6fbSDavid Nugent #endif 7952e3db6fbSDavid Nugent 7962e3db6fbSDavid Nugent #else /* Portable version */ 7972e3db6fbSDavid Nugent 7982e3db6fbSDavid Nugent static u_char * 7992e3db6fbSDavid Nugent pw_getrand(u_char *buf, int len) 8002e3db6fbSDavid Nugent { 8012e3db6fbSDavid Nugent int i; 8022e3db6fbSDavid Nugent 8032e3db6fbSDavid Nugent for (i = 0; i < len; i++) { 8042e3db6fbSDavid Nugent unsigned val = random(); 8052e3db6fbSDavid Nugent /* Use all bits in the random value */ 8062e3db6fbSDavid Nugent buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val); 8072e3db6fbSDavid Nugent } 8082e3db6fbSDavid Nugent return buf; 8092e3db6fbSDavid Nugent } 8102e3db6fbSDavid Nugent 8112e3db6fbSDavid Nugent #endif 8122e3db6fbSDavid Nugent 813d6f907dcSJoerg Wunsch static char * 814d6f907dcSJoerg Wunsch pw_password(struct userconf * cnf, struct cargs * args, char const * user) 815d6f907dcSJoerg Wunsch { 816d6f907dcSJoerg Wunsch int i, l; 817d6f907dcSJoerg Wunsch char pwbuf[32]; 818b7d2ba7cSDavid Nugent u_char rndbuf[sizeof pwbuf]; 819d6f907dcSJoerg Wunsch 820d6f907dcSJoerg Wunsch switch (cnf->default_password) { 821d6f907dcSJoerg Wunsch case -1: /* Random password */ 822b7d2ba7cSDavid Nugent srandom((unsigned) (time(NULL) ^ getpid())); 823d6f907dcSJoerg Wunsch l = (random() % 8 + 8); /* 8 - 16 chars */ 824b7d2ba7cSDavid Nugent pw_getrand(rndbuf, l); 825d6f907dcSJoerg Wunsch for (i = 0; i < l; i++) 826b7d2ba7cSDavid Nugent pwbuf[i] = chars[rndbuf[i] % sizeof(chars)]; 827d6f907dcSJoerg Wunsch pwbuf[i] = '\0'; 828d6f907dcSJoerg Wunsch 829d6f907dcSJoerg Wunsch /* 830d6f907dcSJoerg Wunsch * We give this information back to the user 831d6f907dcSJoerg Wunsch */ 83248aee7f3SJoerg Wunsch if (getarg(args, 'h') == NULL && getarg(args, 'N') == NULL) { 833d6f907dcSJoerg Wunsch if (isatty(0)) 834d6f907dcSJoerg Wunsch printf("Password is: "); 835d6f907dcSJoerg Wunsch printf("%s\n", pwbuf); 836d6f907dcSJoerg Wunsch fflush(stdout); 837d6f907dcSJoerg Wunsch } 838d6f907dcSJoerg Wunsch break; 839d6f907dcSJoerg Wunsch 840d6f907dcSJoerg Wunsch case -2: /* No password at all! */ 841d6f907dcSJoerg Wunsch return ""; 842d6f907dcSJoerg Wunsch 843d6f907dcSJoerg Wunsch case 0: /* No login - default */ 844d6f907dcSJoerg Wunsch default: 845d6f907dcSJoerg Wunsch return "*"; 846d6f907dcSJoerg Wunsch 847d6f907dcSJoerg Wunsch case 1: /* user's name */ 848d6f907dcSJoerg Wunsch strncpy(pwbuf, user, sizeof pwbuf); 849d6f907dcSJoerg Wunsch pwbuf[sizeof pwbuf - 1] = '\0'; 850d6f907dcSJoerg Wunsch break; 851d6f907dcSJoerg Wunsch } 852d6f907dcSJoerg Wunsch return pw_pwcrypt(pwbuf); 853d6f907dcSJoerg Wunsch } 854d6f907dcSJoerg Wunsch 855d6f907dcSJoerg Wunsch 856d6f907dcSJoerg Wunsch static int 857d6f907dcSJoerg Wunsch print_user(struct passwd * pwd, int pretty) 858d6f907dcSJoerg Wunsch { 859d6f907dcSJoerg Wunsch if (!pretty) { 860d6f907dcSJoerg Wunsch char buf[_UC_MAXLINE]; 861d6f907dcSJoerg Wunsch 862d6f907dcSJoerg Wunsch fmtpwent(buf, pwd); 863d6f907dcSJoerg Wunsch fputs(buf, stdout); 864d6f907dcSJoerg Wunsch } else { 86548aee7f3SJoerg Wunsch int j; 866d6f907dcSJoerg Wunsch char *p; 867d6f907dcSJoerg Wunsch struct group *grp = getgrgid(pwd->pw_gid); 868d6f907dcSJoerg Wunsch char uname[60] = "User &", office[60] = "[None]", 869d6f907dcSJoerg Wunsch wphone[60] = "[None]", hphone[60] = "[None]"; 8702e3db6fbSDavid Nugent char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 8712e3db6fbSDavid Nugent struct tm * tptr; 872d6f907dcSJoerg Wunsch 873d6f907dcSJoerg Wunsch if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 874d6f907dcSJoerg Wunsch strncpy(uname, p, sizeof uname); 875d6f907dcSJoerg Wunsch uname[sizeof uname - 1] = '\0'; 876d6f907dcSJoerg Wunsch if ((p = strtok(NULL, ",")) != NULL) { 877d6f907dcSJoerg Wunsch strncpy(office, p, sizeof office); 878d6f907dcSJoerg Wunsch office[sizeof office - 1] = '\0'; 879d6f907dcSJoerg Wunsch if ((p = strtok(NULL, ",")) != NULL) { 880d6f907dcSJoerg Wunsch strncpy(wphone, p, sizeof wphone); 881d6f907dcSJoerg Wunsch wphone[sizeof wphone - 1] = '\0'; 882d6f907dcSJoerg Wunsch if ((p = strtok(NULL, "")) != NULL) { 883d6f907dcSJoerg Wunsch strncpy(hphone, p, sizeof hphone); 884d6f907dcSJoerg Wunsch hphone[sizeof hphone - 1] = '\0'; 885d6f907dcSJoerg Wunsch } 886d6f907dcSJoerg Wunsch } 887d6f907dcSJoerg Wunsch } 888d6f907dcSJoerg Wunsch } 889d6f907dcSJoerg Wunsch /* 890d6f907dcSJoerg Wunsch * Handle '&' in gecos field 891d6f907dcSJoerg Wunsch */ 892d6f907dcSJoerg Wunsch if ((p = strchr(uname, '&')) != NULL) { 893d6f907dcSJoerg Wunsch int l = strlen(pwd->pw_name); 894d6f907dcSJoerg Wunsch int m = strlen(p); 895d6f907dcSJoerg Wunsch 896d6f907dcSJoerg Wunsch memmove(p + l, p + 1, m); 897d6f907dcSJoerg Wunsch memmove(p, pwd->pw_name, l); 898d6f907dcSJoerg Wunsch *p = (char) toupper(*p); 899d6f907dcSJoerg Wunsch } 9002e3db6fbSDavid Nugent if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 9012e3db6fbSDavid Nugent strftime(acexpire, sizeof acexpire, "%c", tptr); 9022e3db6fbSDavid Nugent if (pwd->pw_change > (time_t)9 && (tptr = localtime(&pwd->pw_change)) != NULL) 9032e3db6fbSDavid Nugent strftime(pwexpire, sizeof pwexpire, "%c", tptr); 904d6f907dcSJoerg Wunsch printf("Login Name : %-10s #%-22ld Group : %-10s #%ld\n" 905d6f907dcSJoerg Wunsch " Full Name : %s\n" 906d6f907dcSJoerg Wunsch " Home : %-32.32s Class : %s\n" 907d6f907dcSJoerg Wunsch " Shell : %-32.32s Office : %s\n" 9082e3db6fbSDavid Nugent "Work Phone : %-32.32s Home Phone : %s\n" 9092e3db6fbSDavid Nugent "Acc Expire : %-32.32s Pwd Expire : %s\n", 910d6f907dcSJoerg Wunsch pwd->pw_name, (long) pwd->pw_uid, 911d6f907dcSJoerg Wunsch grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid, 912d6f907dcSJoerg Wunsch uname, pwd->pw_dir, pwd->pw_class, 9132e3db6fbSDavid Nugent pwd->pw_shell, office, wphone, hphone, 9142e3db6fbSDavid Nugent acexpire, pwexpire); 91548aee7f3SJoerg Wunsch setgrent(); 91648aee7f3SJoerg Wunsch j = 0; 91748aee7f3SJoerg Wunsch while ((grp=getgrent()) != NULL) 91848aee7f3SJoerg Wunsch { 91948aee7f3SJoerg Wunsch int i = 0; 92048aee7f3SJoerg Wunsch while (i < _UC_MAXGROUPS && grp->gr_mem[i] != NULL) 92148aee7f3SJoerg Wunsch { 92248aee7f3SJoerg Wunsch if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 92348aee7f3SJoerg Wunsch { 92448aee7f3SJoerg Wunsch printf(j++ == 0 ? " Groups : %s" : ",%s", grp->gr_name); 92548aee7f3SJoerg Wunsch break; 926d6f907dcSJoerg Wunsch } 92748aee7f3SJoerg Wunsch ++i; 92848aee7f3SJoerg Wunsch } 92948aee7f3SJoerg Wunsch } 93048aee7f3SJoerg Wunsch endgrent(); 93148aee7f3SJoerg Wunsch printf("%s\n", j ? "\n" : ""); 93248aee7f3SJoerg Wunsch } 93348aee7f3SJoerg Wunsch return EXIT_SUCCESS; 934d6f907dcSJoerg Wunsch } 935d6f907dcSJoerg Wunsch 936d6f907dcSJoerg Wunsch static char * 937d6f907dcSJoerg Wunsch pw_checkname(char *name, int gecos) 938d6f907dcSJoerg Wunsch { 939d6f907dcSJoerg Wunsch int l = 0; 940669d2046SJoerg Wunsch char const *notch = gecos ? ":" : " ,\t:+-&#%$^()!@~*?<>=|\\/\""; 941d6f907dcSJoerg Wunsch 942d6f907dcSJoerg Wunsch while (name[l]) { 943669d2046SJoerg Wunsch if (strchr(notch, name[l]) != NULL || name[l] < ' ' || name[l] > 126) 944669d2046SJoerg Wunsch cmderr(EX_DATAERR, (name[l]<' ' || (unsigned char)name[l] > 126) 945669d2046SJoerg Wunsch ? "invalid character `%c' in field\n" 946669d2046SJoerg Wunsch : "invalid character 0x$02x in field\n", 947669d2046SJoerg Wunsch name[l]); 948d6f907dcSJoerg Wunsch ++l; 949d6f907dcSJoerg Wunsch } 950669d2046SJoerg Wunsch if (!gecos && l > MAXLOGNAME) 95148aee7f3SJoerg Wunsch cmderr(EX_DATAERR, "name too long `%s'\n", name); 952d6f907dcSJoerg Wunsch return name; 953d6f907dcSJoerg Wunsch } 954d6f907dcSJoerg Wunsch 955d6f907dcSJoerg Wunsch 956d6f907dcSJoerg Wunsch static void 957d6f907dcSJoerg Wunsch rmat(uid_t uid) 958d6f907dcSJoerg Wunsch { 959d6f907dcSJoerg Wunsch DIR *d = opendir("/var/at/jobs"); 960d6f907dcSJoerg Wunsch 961d6f907dcSJoerg Wunsch if (d != NULL) { 962d6f907dcSJoerg Wunsch struct dirent *e; 963d6f907dcSJoerg Wunsch 964d6f907dcSJoerg Wunsch while ((e = readdir(d)) != NULL) { 965d6f907dcSJoerg Wunsch struct stat st; 966d6f907dcSJoerg Wunsch 967d6f907dcSJoerg Wunsch if (strncmp(e->d_name, ".lock", 5) != 0 && 968d6f907dcSJoerg Wunsch stat(e->d_name, &st) == 0 && 969d6f907dcSJoerg Wunsch !S_ISDIR(st.st_mode) && 970d6f907dcSJoerg Wunsch st.st_uid == uid) { 971d6f907dcSJoerg Wunsch char tmp[MAXPATHLEN]; 972d6f907dcSJoerg Wunsch 973d6f907dcSJoerg Wunsch sprintf(tmp, "/usr/bin/atrm %s", e->d_name); 974d6f907dcSJoerg Wunsch system(tmp); 975d6f907dcSJoerg Wunsch } 976d6f907dcSJoerg Wunsch } 977d6f907dcSJoerg Wunsch closedir(d); 978d6f907dcSJoerg Wunsch } 979d6f907dcSJoerg Wunsch } 980