pw_user.c revision 21052
120253Sjoerg/*- 220302Sjoerg * Copyright (C) 1996 320302Sjoerg * David L. Nugent. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1720302Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2420253Sjoerg * SUCH DAMAGE. 2520253Sjoerg * 2621052Sdavidn * $Id: pw_user.c,v 1.9 1996/12/23 02:27:29 davidn Exp $ 2720253Sjoerg */ 2820253Sjoerg 2920253Sjoerg#include <unistd.h> 3020253Sjoerg#include <fcntl.h> 3120253Sjoerg#include <ctype.h> 3220253Sjoerg#include <paths.h> 3320253Sjoerg#include <sys/param.h> 3420253Sjoerg#include <dirent.h> 3520253Sjoerg#include <termios.h> 3620555Sdavidn#include <sys/types.h> 3720555Sdavidn#include <sys/time.h> 3820555Sdavidn#include <sys/resource.h> 3920555Sdavidn#include <md5.h> 4020253Sjoerg#include "pw.h" 4120253Sjoerg#include "bitmap.h" 4220253Sjoerg#include "pwupd.h" 4320253Sjoerg 4420253Sjoergstatic int print_user(struct passwd * pwd, int pretty); 4520253Sjoergstatic uid_t pw_uidpolicy(struct userconf * cnf, struct cargs * args); 4620253Sjoergstatic uid_t pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer); 4720253Sjoergstatic time_t pw_pwdpolicy(struct userconf * cnf, struct cargs * args); 4820253Sjoergstatic time_t pw_exppolicy(struct userconf * cnf, struct cargs * args); 4920253Sjoergstatic char *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user); 5020253Sjoergstatic char *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell); 5120253Sjoergstatic char *pw_password(struct userconf * cnf, struct cargs * args, char const * user); 5220253Sjoergstatic char *shell_path(char const * path, char *shells[], char *sh); 5320253Sjoergstatic void rmat(uid_t uid); 5420747Sdavidnstatic void rmskey(char const * name); 5520253Sjoerg 5620253Sjoerg/*- 5720253Sjoerg * -C config configuration file 5820253Sjoerg * -q quiet operation 5920253Sjoerg * -n name login name 6020253Sjoerg * -u uid user id 6120253Sjoerg * -c comment user name/comment 6220253Sjoerg * -d directory home directory 6320253Sjoerg * -e date account expiry date 6420253Sjoerg * -p date password expiry date 6520253Sjoerg * -g grp primary group 6620253Sjoerg * -G grp1,grp2 additional groups 6720253Sjoerg * -m [ -k dir ] create and set up home 6820253Sjoerg * -s shell name of login shell 6920253Sjoerg * -o duplicate uid ok 7020253Sjoerg * -L class user class 7120253Sjoerg * -l name new login name 7220253Sjoerg * -h fd password filehandle 7320253Sjoerg * -F force print or add 7420253Sjoerg * Setting defaults: 7520253Sjoerg * -D set user defaults 7620253Sjoerg * -b dir default home root dir 7720253Sjoerg * -e period default expiry period 7820253Sjoerg * -p period default password change period 7920253Sjoerg * -g group default group 8020253Sjoerg * -G grp1,grp2.. default additional groups 8120253Sjoerg * -L class default login class 8220253Sjoerg * -k dir default home skeleton 8320253Sjoerg * -s shell default shell 8420253Sjoerg * -w method default password method 8520253Sjoerg */ 8620253Sjoerg 8720253Sjoergint 8820253Sjoergpw_user(struct userconf * cnf, int mode, struct cargs * args) 8920253Sjoerg{ 9020253Sjoerg char *p = NULL; 9120253Sjoerg struct carg *a_name; 9220253Sjoerg struct carg *a_uid; 9320253Sjoerg struct carg *arg; 9420253Sjoerg struct passwd *pwd = NULL; 9520253Sjoerg struct group *grp; 9620253Sjoerg struct stat st; 9720747Sdavidn char line[_PASSWORD_LEN+1]; 9820253Sjoerg 9920253Sjoerg static struct passwd fakeuser = 10020253Sjoerg { 10120253Sjoerg NULL, 10220253Sjoerg "*", 10320253Sjoerg -1, 10420253Sjoerg -1, 10520253Sjoerg 0, 10620253Sjoerg "", 10720253Sjoerg "User &", 10820253Sjoerg "/bin/sh", 10920253Sjoerg 0, 11020253Sjoerg 0 11120253Sjoerg }; 11220253Sjoerg 11320253Sjoerg /* 11420267Sjoerg * With M_NEXT, we only need to return the 11520267Sjoerg * next uid to stdout 11620267Sjoerg */ 11720267Sjoerg if (mode == M_NEXT) 11820267Sjoerg { 11920267Sjoerg uid_t next = pw_uidpolicy(cnf, args); 12020267Sjoerg if (getarg(args, 'q')) 12120267Sjoerg return next; 12220267Sjoerg printf("%ld:", (long)next); 12320267Sjoerg pw_group(cnf, mode, args); 12420267Sjoerg return EXIT_SUCCESS; 12520267Sjoerg } 12620267Sjoerg 12720267Sjoerg /* 12820253Sjoerg * We can do all of the common legwork here 12920253Sjoerg */ 13020253Sjoerg 13120253Sjoerg if ((arg = getarg(args, 'b')) != NULL) { 13220267Sjoerg cnf->home = arg->val; 13320253Sjoerg } 13421052Sdavidn 13521052Sdavidn /* 13621052Sdavidn * If we'll need to use it or we're updating it, 13721052Sdavidn * then create the base home directory if necessary 13821052Sdavidn */ 13921052Sdavidn if (arg != NULL || getarg(args, 'm') != NULL) { 14021052Sdavidn int l = strlen(cnf->home); 14121052Sdavidn 14221052Sdavidn if (l > 1 && cnf->home[l-1] == '/') /* Shave off any trailing path delimiter */ 14321052Sdavidn cnf->home[--l] = '\0'; 14421052Sdavidn 14521052Sdavidn if (l < 2 || *cnf->home != '/') /* Check for absolute path name */ 14621052Sdavidn cmderr(EX_DATAERR, "invalid base directory for home '%s'\n", cnf->home); 14721052Sdavidn 14821052Sdavidn if (stat(cnf->home, &st) == -1) { 14921052Sdavidn char dbuf[MAXPATHLEN]; 15021052Sdavidn 15121052Sdavidn p = strncpy(dbuf, cnf->home, sizeof dbuf); 15221052Sdavidn dbuf[MAXPATHLEN-1] = '\0'; 15321052Sdavidn while ((p = strchr(++p, '/')) != NULL) { 15421052Sdavidn *p = '\0'; 15521052Sdavidn if (stat(dbuf, &st) == -1) { 15621052Sdavidn if (mkdir(dbuf, 0755) == -1) 15721052Sdavidn goto direrr; 15821052Sdavidn chown(dbuf, 0, 0); 15921052Sdavidn } else if (!S_ISDIR(st.st_mode)) 16021052Sdavidn cmderr(EX_OSFILE, "'%s' (root home parent) is not a directory\n", dbuf); 16121052Sdavidn *p = '/'; 16221052Sdavidn } 16321052Sdavidn if (stat(dbuf, &st) == -1) { /* Should not be strictly necessary */ 16421052Sdavidn if (mkdir(dbuf, 0755) == -1) { 16521052Sdavidn direrr: cmderr(EX_OSFILE, "mkdir '%s': %s\n", dbuf, strerror(errno)); 16621052Sdavidn } 16721052Sdavidn chown(dbuf, 0, 0); 16821052Sdavidn } 16921052Sdavidn } else if (!S_ISDIR(st.st_mode)) 17021052Sdavidn cmderr(EX_OSFILE, "root home `%s' is not a directory\n", cnf->home); 17121052Sdavidn } 17221052Sdavidn 17321052Sdavidn 17420253Sjoerg if ((arg = getarg(args, 'e')) != NULL) 17520253Sjoerg cnf->expire_days = atoi(arg->val); 17620253Sjoerg 17720253Sjoerg if ((arg = getarg(args, 'p')) != NULL && arg->val) 17820253Sjoerg cnf->password_days = atoi(arg->val); 17920253Sjoerg 18020253Sjoerg if ((arg = getarg(args, 'g')) != NULL) { 18120253Sjoerg p = arg->val; 18220253Sjoerg if ((grp = getgrnam(p)) == NULL) { 18320253Sjoerg if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 18420267Sjoerg cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 18520253Sjoerg } 18620253Sjoerg cnf->default_group = newstr(grp->gr_name); 18720253Sjoerg } 18820253Sjoerg if ((arg = getarg(args, 'L')) != NULL) 18920679Sdavidn cnf->default_class = pw_checkname((u_char *)arg->val, 0); 19020253Sjoerg 19120253Sjoerg if ((arg = getarg(args, 'G')) != NULL && arg->val) { 19220253Sjoerg int i = 0; 19320253Sjoerg 19420747Sdavidn for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) { 19520253Sjoerg if ((grp = getgrnam(p)) == NULL) { 19620253Sjoerg if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 19720267Sjoerg cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 19820253Sjoerg } 19920747Sdavidn if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1) 20020747Sdavidn cnf->groups[i++] = newstr(grp->gr_name); 20120253Sjoerg } 20220747Sdavidn while (i < cnf->numgroups) 20320253Sjoerg cnf->groups[i++] = NULL; 20420253Sjoerg } 20520253Sjoerg if ((arg = getarg(args, 'k')) != NULL) { 20620253Sjoerg if (stat(cnf->dotdir = arg->val, &st) == -1 || S_ISDIR(st.st_mode)) 20720267Sjoerg cmderr(EX_OSFILE, "skeleton `%s' is not a directory or does not exist\n", cnf->dotdir); 20820253Sjoerg } 20920253Sjoerg if ((arg = getarg(args, 's')) != NULL) 21020253Sjoerg cnf->shell_default = arg->val; 21120253Sjoerg 21220253Sjoerg if (mode == M_ADD && getarg(args, 'D')) { 21320253Sjoerg if (getarg(args, 'n') != NULL) 21420267Sjoerg cmderr(EX_DATAERR, "can't combine `-D' with `-n name'\n"); 21520253Sjoerg if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 21620253Sjoerg if ((cnf->min_uid = (uid_t) atoi(p)) == 0) 21720253Sjoerg cnf->min_uid = 1000; 21820253Sjoerg if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid) 21920253Sjoerg cnf->max_uid = 32000; 22020253Sjoerg } 22120253Sjoerg if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 22220253Sjoerg if ((cnf->min_gid = (gid_t) atoi(p)) == 0) 22320253Sjoerg cnf->min_gid = 1000; 22420253Sjoerg if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid) 22520253Sjoerg cnf->max_gid = 32000; 22620253Sjoerg } 22720253Sjoerg if ((arg = getarg(args, 'w')) != NULL) 22820253Sjoerg cnf->default_password = boolean_val(arg->val, cnf->default_password); 22920253Sjoerg 23020253Sjoerg arg = getarg(args, 'C'); 23120253Sjoerg if (write_userconfig(arg ? arg->val : NULL)) 23220267Sjoerg return EXIT_SUCCESS; 23320253Sjoerg perror("config update"); 23420267Sjoerg return EX_IOERR; 23520253Sjoerg } 23620253Sjoerg if (mode == M_PRINT && getarg(args, 'a')) { 23720267Sjoerg int pretty = getarg(args, 'P') != NULL; 23820253Sjoerg 23920253Sjoerg setpwent(); 24020253Sjoerg while ((pwd = getpwent()) != NULL) 24120253Sjoerg print_user(pwd, pretty); 24220253Sjoerg endpwent(); 24320267Sjoerg return EXIT_SUCCESS; 24420253Sjoerg } 24520253Sjoerg if ((a_name = getarg(args, 'n')) != NULL) 24620679Sdavidn pwd = getpwnam(pw_checkname((u_char *)a_name->val, 0)); 24720253Sjoerg a_uid = getarg(args, 'u'); 24820253Sjoerg 24920253Sjoerg if (a_uid == NULL) { 25020253Sjoerg if (a_name == NULL) 25120267Sjoerg cmderr(EX_DATAERR, "user name or id required\n"); 25220253Sjoerg 25320253Sjoerg /* 25420253Sjoerg * Determine whether 'n' switch is name or uid - we don't 25520253Sjoerg * really don't really care which we have, but we need to 25620253Sjoerg * know. 25720253Sjoerg */ 25820253Sjoerg if (mode != M_ADD && pwd == NULL && isdigit(*a_name->val) && atoi(a_name->val) > 0) { /* Assume uid */ 25920253Sjoerg (a_uid = a_name)->ch = 'u'; 26020253Sjoerg a_name = NULL; 26120253Sjoerg } 26220253Sjoerg } 26320253Sjoerg /* 26420253Sjoerg * Update, delete & print require that the user exists 26520253Sjoerg */ 26620253Sjoerg if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) { 26720253Sjoerg if (a_name == NULL && pwd == NULL) /* Try harder */ 26820253Sjoerg pwd = getpwuid(atoi(a_uid->val)); 26920253Sjoerg 27020253Sjoerg if (pwd == NULL) { 27120253Sjoerg if (mode == M_PRINT && getarg(args, 'F')) { 27220253Sjoerg fakeuser.pw_name = a_name ? a_name->val : "nouser"; 27320253Sjoerg fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1; 27420267Sjoerg return print_user(&fakeuser, getarg(args, 'P') != NULL); 27520253Sjoerg } 27620253Sjoerg if (a_name == NULL) 27720267Sjoerg cmderr(EX_NOUSER, "no such uid `%s'\n", a_uid->val); 27820267Sjoerg cmderr(EX_NOUSER, "no such user `%s'\n", a_name->val); 27920253Sjoerg } 28020253Sjoerg if (a_name == NULL) /* May be needed later */ 28120253Sjoerg a_name = addarg(args, 'n', newstr(pwd->pw_name)); 28220253Sjoerg 28320253Sjoerg /* 28420253Sjoerg * Handle deletions now 28520253Sjoerg */ 28620253Sjoerg if (mode == M_DELETE) { 28720253Sjoerg char file[MAXPATHLEN]; 28820253Sjoerg char home[MAXPATHLEN]; 28920253Sjoerg uid_t uid = pwd->pw_uid; 29020253Sjoerg 29120253Sjoerg if (strcmp(pwd->pw_name, "root") == 0) 29220267Sjoerg cmderr(EX_DATAERR, "cannot remove user 'root'\n"); 29320253Sjoerg 29420253Sjoerg /* 29520747Sdavidn * Remove skey record from /etc/skeykeys 29620747Sdavidn */ 29720747Sdavidn 29820747Sdavidn rmskey(pwd->pw_name); 29920747Sdavidn 30020747Sdavidn /* 30120253Sjoerg * Remove crontabs 30220253Sjoerg */ 30320253Sjoerg sprintf(file, "/var/cron/tabs/%s", pwd->pw_name); 30420253Sjoerg if (access(file, F_OK) == 0) { 30520253Sjoerg sprintf(file, "crontab -u %s -r", pwd->pw_name); 30620253Sjoerg system(file); 30720253Sjoerg } 30820253Sjoerg /* 30920253Sjoerg * Save these for later, since contents of pwd may be 31020253Sjoerg * invalidated by deletion 31120253Sjoerg */ 31220253Sjoerg sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 31320253Sjoerg strncpy(home, pwd->pw_dir, sizeof home); 31420253Sjoerg home[sizeof home - 1] = '\0'; 31520253Sjoerg 31620253Sjoerg if (!delpwent(pwd)) 31720267Sjoerg cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno)); 31820253Sjoerg editgroups(a_name->val, NULL); 31920253Sjoerg 32020253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid); 32120253Sjoerg 32220253Sjoerg /* 32320253Sjoerg * Remove mail file 32420253Sjoerg */ 32520253Sjoerg remove(file); 32620253Sjoerg 32720253Sjoerg /* 32820253Sjoerg * Remove at jobs 32920253Sjoerg */ 33020253Sjoerg if (getpwuid(uid) == NULL) 33120253Sjoerg rmat(uid); 33220253Sjoerg 33320253Sjoerg /* 33420253Sjoerg * Remove home directory and contents 33520253Sjoerg */ 33620253Sjoerg if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) { 33720253Sjoerg if (stat(home, &st) != -1) { 33820253Sjoerg rm_r(home, uid); 33920253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved", 34020253Sjoerg a_name->val, (long) uid, home, 34120253Sjoerg stat(home, &st) == -1 ? "" : "not completely "); 34220253Sjoerg } 34320253Sjoerg } 34420267Sjoerg return EXIT_SUCCESS; 34520253Sjoerg } else if (mode == M_PRINT) 34620267Sjoerg return print_user(pwd, getarg(args, 'P') != NULL); 34720253Sjoerg 34820253Sjoerg /* 34920253Sjoerg * The rest is edit code 35020253Sjoerg */ 35120253Sjoerg if ((arg = getarg(args, 'l')) != NULL) { 35220253Sjoerg if (strcmp(pwd->pw_name, "root") == 0) 35320267Sjoerg cmderr(EX_DATAERR, "can't rename `root' account\n"); 35420679Sdavidn pwd->pw_name = pw_checkname((u_char *)arg->val, 0); 35520253Sjoerg } 35620253Sjoerg if ((arg = getarg(args, 'u')) != NULL && isdigit(*arg->val)) { 35720253Sjoerg pwd->pw_uid = (uid_t) atol(arg->val); 35820253Sjoerg if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 35920267Sjoerg cmderr(EX_DATAERR, "can't change uid of `root' account\n"); 36020253Sjoerg if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 36120253Sjoerg fprintf(stderr, "WARNING: account `%s' will have a uid of 0 (superuser access!)\n", pwd->pw_name); 36220253Sjoerg } 36320253Sjoerg if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) /* Already checked this */ 36420253Sjoerg pwd->pw_gid = (gid_t) getgrnam(cnf->default_group)->gr_gid; 36520253Sjoerg 36620253Sjoerg if ((arg = getarg(args, 'p')) != NULL) { 36720253Sjoerg if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 36820253Sjoerg pwd->pw_change = 0; 36920253Sjoerg else { 37020253Sjoerg time_t now = time(NULL); 37120253Sjoerg time_t expire = parse_date(now, arg->val); 37220253Sjoerg 37320253Sjoerg if (now == expire) 37420267Sjoerg cmderr(EX_DATAERR, "Invalid password change date `%s'\n", arg->val); 37520253Sjoerg pwd->pw_change = expire; 37620253Sjoerg } 37720253Sjoerg } 37820267Sjoerg if ((arg = getarg(args, 'e')) != NULL) { 37920253Sjoerg if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 38020253Sjoerg pwd->pw_expire = 0; 38120253Sjoerg else { 38220253Sjoerg time_t now = time(NULL); 38320253Sjoerg time_t expire = parse_date(now, arg->val); 38420253Sjoerg 38520253Sjoerg if (now == expire) 38620267Sjoerg cmderr(EX_DATAERR, "Invalid account expiry date `%s'\n", arg->val); 38720253Sjoerg pwd->pw_expire = expire; 38820253Sjoerg } 38920253Sjoerg } 39020253Sjoerg if ((arg = getarg(args, 's')) != NULL) 39120253Sjoerg pwd->pw_shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 39220253Sjoerg 39320253Sjoerg if (getarg(args, 'L')) 39420253Sjoerg pwd->pw_class = cnf->default_class; 39520253Sjoerg 39620747Sdavidn if ((arg = getarg(args, 'd')) != NULL) { 39720747Sdavidn if (stat(pwd->pw_dir = arg->val, &st) == -1) { 39820747Sdavidn if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0) 39920747Sdavidn fprintf(stderr, "WARNING: home `%s' does not exist\n", pwd->pw_dir); 40020747Sdavidn } else if (!S_ISDIR(st.st_mode)) 40120747Sdavidn fprintf(stderr, "WARNING: home `%s' is not a directory\n", pwd->pw_dir); 40220747Sdavidn } 40320747Sdavidn 40420267Sjoerg if ((arg = getarg(args, 'w')) != NULL && getarg(args, 'h') == NULL) 40520267Sjoerg pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 40620267Sjoerg 40720253Sjoerg } else { 40820253Sjoerg if (a_name == NULL) /* Required */ 40920267Sjoerg cmderr(EX_DATAERR, "login name required\n"); 41020253Sjoerg else if ((pwd = getpwnam(a_name->val)) != NULL) /* Exists */ 41120267Sjoerg cmderr(EX_DATAERR, "login name `%s' already exists\n", a_name->val); 41220253Sjoerg 41320253Sjoerg /* 41420253Sjoerg * Now, set up defaults for a new user 41520253Sjoerg */ 41620253Sjoerg pwd = &fakeuser; 41720253Sjoerg pwd->pw_name = a_name->val; 41820253Sjoerg pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 41920253Sjoerg pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 42020253Sjoerg pwd->pw_uid = pw_uidpolicy(cnf, args); 42120253Sjoerg pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid); 42220253Sjoerg pwd->pw_change = pw_pwdpolicy(cnf, args); 42320253Sjoerg pwd->pw_expire = pw_exppolicy(cnf, args); 42420253Sjoerg pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 42520253Sjoerg pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 42620253Sjoerg 42720253Sjoerg if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 42820253Sjoerg fprintf(stderr, "WARNING: new account `%s' has a uid of 0 (superuser access!)\n", pwd->pw_name); 42920253Sjoerg } 43020253Sjoerg 43120253Sjoerg /* 43220253Sjoerg * Shared add/edit code 43320253Sjoerg */ 43420253Sjoerg if ((arg = getarg(args, 'c')) != NULL) 43520679Sdavidn pwd->pw_gecos = pw_checkname((u_char *)arg->val, 1); 43620253Sjoerg 43720253Sjoerg if ((arg = getarg(args, 'h')) != NULL) { 43820253Sjoerg if (strcmp(arg->val, "-") == 0) 43920253Sjoerg pwd->pw_passwd = "*"; /* No access */ 44020253Sjoerg else { 44120253Sjoerg int fd = atoi(arg->val); 44220253Sjoerg int b; 44320253Sjoerg int istty = isatty(fd); 44420253Sjoerg struct termios t; 44520253Sjoerg 44620253Sjoerg if (istty) { 44720253Sjoerg if (tcgetattr(fd, &t) == -1) 44820253Sjoerg istty = 0; 44920253Sjoerg else { 45020253Sjoerg struct termios n = t; 45120253Sjoerg 45220253Sjoerg /* Disable echo */ 45320253Sjoerg n.c_lflag &= ~(ECHO); 45420253Sjoerg tcsetattr(fd, TCSANOW, &n); 45520253Sjoerg printf("%sassword for user %s:", (mode == M_UPDATE) ? "New p" : "P", pwd->pw_name); 45620253Sjoerg fflush(stdout); 45720253Sjoerg } 45820253Sjoerg } 45920253Sjoerg b = read(fd, line, sizeof(line) - 1); 46020253Sjoerg if (istty) { /* Restore state */ 46120253Sjoerg tcsetattr(fd, TCSANOW, &t); 46220253Sjoerg fputc('\n', stdout); 46320253Sjoerg fflush(stdout); 46420253Sjoerg } 46520253Sjoerg if (b < 0) { 46620253Sjoerg perror("-h file descriptor"); 46720267Sjoerg return EX_IOERR; 46820253Sjoerg } 46920253Sjoerg line[b] = '\0'; 47020253Sjoerg if ((p = strpbrk(line, " \t\r\n")) != NULL) 47120253Sjoerg *p = '\0'; 47220253Sjoerg if (!*line) 47320267Sjoerg cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd); 47420253Sjoerg pwd->pw_passwd = pw_pwcrypt(line); 47520253Sjoerg } 47620253Sjoerg } 47720267Sjoerg 47820267Sjoerg /* 47920267Sjoerg * Special case: -N only displays & exits 48020267Sjoerg */ 48120267Sjoerg if (getarg(args, 'N') != NULL) 48220267Sjoerg return print_user(pwd, getarg(args, 'P') != NULL); 48320267Sjoerg 48420253Sjoerg if ((mode == M_ADD && !addpwent(pwd)) || 48520253Sjoerg (mode == M_UPDATE && !chgpwent(a_name->val, pwd))) { 48620253Sjoerg perror("password update"); 48720267Sjoerg return EX_IOERR; 48820253Sjoerg } 48920253Sjoerg /* 49020253Sjoerg * Ok, user is created or changed - now edit group file 49120253Sjoerg */ 49220253Sjoerg 49320253Sjoerg if (mode == M_ADD || getarg(args, 'G') != NULL) 49420253Sjoerg editgroups(pwd->pw_name, cnf->groups); 49520253Sjoerg 49620253Sjoerg /* pwd may have been invalidated */ 49720253Sjoerg if ((pwd = getpwnam(a_name->val)) == NULL) 49820267Sjoerg cmderr(EX_NOUSER, "user '%s' disappeared during update\n", a_name->val); 49920253Sjoerg 50020253Sjoerg grp = getgrgid(pwd->pw_gid); 50120253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld):%s(%d):%s:%s:%s", 50220253Sjoerg pwd->pw_name, (long) pwd->pw_uid, 50320253Sjoerg grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1), 50420253Sjoerg pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 50520253Sjoerg 50620253Sjoerg /* 50720253Sjoerg * If adding, let's touch and chown the user's mail file. This is not 50820253Sjoerg * strictly necessary under BSD with a 0755 maildir but it also 50920253Sjoerg * doesn't hurt anything to create the empty mailfile 51020253Sjoerg */ 51120253Sjoerg if (mode == M_ADD) { 51220253Sjoerg FILE *fp; 51320253Sjoerg 51420253Sjoerg sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 51520253Sjoerg close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 51620253Sjoerg * mtime */ 51720253Sjoerg chown(line, pwd->pw_uid, pwd->pw_gid); 51820253Sjoerg 51920253Sjoerg /* 52020253Sjoerg * Send mail to the new user as well, if we are asked to 52120253Sjoerg */ 52220253Sjoerg if (cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 52320253Sjoerg FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 52420253Sjoerg 52520253Sjoerg if (pfp == NULL) 52620253Sjoerg perror("sendmail"); 52720253Sjoerg else { 52820253Sjoerg fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 52920253Sjoerg while (fgets(line, sizeof(line), fp) != NULL) { 53020253Sjoerg /* Do substitutions? */ 53120253Sjoerg fputs(line, pfp); 53220253Sjoerg } 53320253Sjoerg pclose(pfp); 53420253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent", 53520253Sjoerg pwd->pw_name, (long) pwd->pw_uid); 53620253Sjoerg } 53720253Sjoerg fclose(fp); 53820253Sjoerg } 53920253Sjoerg } 54020253Sjoerg /* 54120253Sjoerg * Finally, let's create and populate the user's home directory. Note 54220253Sjoerg * that this also `works' for editing users if -m is used, but 54320253Sjoerg * existing files will *not* be overwritten. 54420253Sjoerg */ 54520253Sjoerg if (getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 54620253Sjoerg copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid); 54720253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) home %s made", 54820253Sjoerg pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir); 54920253Sjoerg } 55020267Sjoerg return EXIT_SUCCESS; 55120253Sjoerg} 55220253Sjoerg 55320253Sjoerg 55420253Sjoergstatic uid_t 55520253Sjoergpw_uidpolicy(struct userconf * cnf, struct cargs * args) 55620253Sjoerg{ 55720253Sjoerg struct passwd *pwd; 55820253Sjoerg uid_t uid = (uid_t) - 1; 55920253Sjoerg struct carg *a_uid = getarg(args, 'u'); 56020253Sjoerg 56120253Sjoerg /* 56220253Sjoerg * Check the given uid, if any 56320253Sjoerg */ 56420253Sjoerg if (a_uid != NULL) { 56520253Sjoerg uid = (uid_t) atol(a_uid->val); 56620253Sjoerg 56720253Sjoerg if ((pwd = getpwuid(uid)) != NULL && getarg(args, 'o') == NULL) 56820267Sjoerg cmderr(EX_DATAERR, "uid `%ld' has already been allocated\n", (long) pwd->pw_uid); 56920253Sjoerg } else { 57020253Sjoerg struct bitmap bm; 57120253Sjoerg 57220253Sjoerg /* 57320253Sjoerg * We need to allocate the next available uid under one of 57420253Sjoerg * two policies a) Grab the first unused uid b) Grab the 57520253Sjoerg * highest possible unused uid 57620253Sjoerg */ 57720253Sjoerg if (cnf->min_uid >= cnf->max_uid) { /* Sanity 57820253Sjoerg * claus^H^H^H^Hheck */ 57920253Sjoerg cnf->min_uid = 1000; 58020253Sjoerg cnf->max_uid = 32000; 58120253Sjoerg } 58220253Sjoerg bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 58320253Sjoerg 58420253Sjoerg /* 58520253Sjoerg * Now, let's fill the bitmap from the password file 58620253Sjoerg */ 58720253Sjoerg setpwent(); 58820253Sjoerg while ((pwd = getpwent()) != NULL) 58920253Sjoerg if (pwd->pw_uid >= (int) cnf->min_uid && pwd->pw_uid <= (int) cnf->max_uid) 59020253Sjoerg bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 59120253Sjoerg endpwent(); 59220253Sjoerg 59320253Sjoerg /* 59420253Sjoerg * Then apply the policy, with fallback to reuse if necessary 59520253Sjoerg */ 59620253Sjoerg if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 59720253Sjoerg uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 59820253Sjoerg 59920253Sjoerg /* 60020253Sjoerg * Another sanity check 60120253Sjoerg */ 60220253Sjoerg if (uid < cnf->min_uid || uid > cnf->max_uid) 60320267Sjoerg cmderr(EX_SOFTWARE, "unable to allocate a new uid - range fully used\n"); 60420253Sjoerg bm_dealloc(&bm); 60520253Sjoerg } 60620253Sjoerg return uid; 60720253Sjoerg} 60820253Sjoerg 60920253Sjoerg 61020253Sjoergstatic uid_t 61120253Sjoergpw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer) 61220253Sjoerg{ 61320253Sjoerg struct group *grp; 61420253Sjoerg gid_t gid = (uid_t) - 1; 61520253Sjoerg struct carg *a_gid = getarg(args, 'g'); 61620253Sjoerg 61720253Sjoerg /* 61820253Sjoerg * If no arg given, see if default can help out 61920253Sjoerg */ 62020253Sjoerg if (a_gid == NULL && cnf->default_group && *cnf->default_group) 62120253Sjoerg a_gid = addarg(args, 'g', cnf->default_group); 62220253Sjoerg 62320253Sjoerg /* 62420253Sjoerg * Check the given gid, if any 62520253Sjoerg */ 62620267Sjoerg setgrent(); 62720253Sjoerg if (a_gid != NULL) { 62820253Sjoerg if ((grp = getgrnam(a_gid->val)) == NULL) { 62920253Sjoerg gid = (gid_t) atol(a_gid->val); 63020253Sjoerg if ((gid == 0 && !isdigit(*a_gid->val)) || (grp = getgrgid(gid)) == NULL) 63120267Sjoerg cmderr(EX_NOUSER, "group `%s' is not defined\n", a_gid->val); 63220253Sjoerg } 63320253Sjoerg gid = grp->gr_gid; 63420267Sjoerg } else if ((grp = getgrnam(nam)) != NULL && grp->gr_mem[0] == NULL) { 63520267Sjoerg gid = grp->gr_gid; /* Already created? Use it anyway... */ 63620253Sjoerg } else { 63720253Sjoerg struct cargs grpargs; 63820253Sjoerg char tmp[32]; 63920253Sjoerg 64020253Sjoerg LIST_INIT(&grpargs); 64120253Sjoerg addarg(&grpargs, 'n', nam); 64220253Sjoerg 64320253Sjoerg /* 64420253Sjoerg * We need to auto-create a group with the user's name. We 64520253Sjoerg * can send all the appropriate output to our sister routine 64620253Sjoerg * bit first see if we can create a group with gid==uid so we 64720253Sjoerg * can keep the user and group ids in sync. We purposely do 64820253Sjoerg * NOT check the gid range if we can force the sync. If the 64920253Sjoerg * user's name dups an existing group, then the group add 65020253Sjoerg * function will happily handle that case for us and exit. 65120253Sjoerg */ 65220253Sjoerg if (getgrgid(prefer) == NULL) { 65320253Sjoerg sprintf(tmp, "%lu", (unsigned long) prefer); 65420253Sjoerg addarg(&grpargs, 'g', tmp); 65520253Sjoerg } 65620267Sjoerg if (getarg(args, 'N')) 65720267Sjoerg { 65820267Sjoerg addarg(&grpargs, 'N', NULL); 65920267Sjoerg addarg(&grpargs, 'q', NULL); 66020267Sjoerg gid = pw_group(cnf, M_NEXT, &grpargs); 66120267Sjoerg } 66220267Sjoerg else 66320267Sjoerg { 66420267Sjoerg pw_group(cnf, M_ADD, &grpargs); 66520267Sjoerg if ((grp = getgrnam(nam)) != NULL) 66620267Sjoerg gid = grp->gr_gid; 66720267Sjoerg } 66820253Sjoerg a_gid = grpargs.lh_first; 66920253Sjoerg while (a_gid != NULL) { 67020253Sjoerg struct carg *t = a_gid->list.le_next; 67120253Sjoerg LIST_REMOVE(a_gid, list); 67220253Sjoerg a_gid = t; 67320253Sjoerg } 67420253Sjoerg } 67520267Sjoerg endgrent(); 67620253Sjoerg return gid; 67720253Sjoerg} 67820253Sjoerg 67920253Sjoerg 68020253Sjoergstatic time_t 68120253Sjoergpw_pwdpolicy(struct userconf * cnf, struct cargs * args) 68220253Sjoerg{ 68320253Sjoerg time_t result = 0; 68420253Sjoerg time_t now = time(NULL); 68520253Sjoerg struct carg *arg = getarg(args, 'e'); 68620253Sjoerg 68720253Sjoerg if (arg != NULL) { 68820253Sjoerg if ((result = parse_date(now, arg->val)) == now) 68920267Sjoerg cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 69020253Sjoerg } else if (cnf->password_days > 0) 69120253Sjoerg result = now + ((long) cnf->password_days * 86400L); 69220253Sjoerg return result; 69320253Sjoerg} 69420253Sjoerg 69520253Sjoerg 69620253Sjoergstatic time_t 69720253Sjoergpw_exppolicy(struct userconf * cnf, struct cargs * args) 69820253Sjoerg{ 69920253Sjoerg time_t result = 0; 70020253Sjoerg time_t now = time(NULL); 70120253Sjoerg struct carg *arg = getarg(args, 'e'); 70220253Sjoerg 70320253Sjoerg if (arg != NULL) { 70420253Sjoerg if ((result = parse_date(now, arg->val)) == now) 70520267Sjoerg cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 70620253Sjoerg } else if (cnf->expire_days > 0) 70720253Sjoerg result = now + ((long) cnf->expire_days * 86400L); 70820253Sjoerg return result; 70920253Sjoerg} 71020253Sjoerg 71120253Sjoerg 71220253Sjoergstatic char * 71320253Sjoergpw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 71420253Sjoerg{ 71520253Sjoerg struct carg *arg = getarg(args, 'd'); 71620253Sjoerg 71720253Sjoerg if (arg) 71820253Sjoerg return arg->val; 71920253Sjoerg else { 72020253Sjoerg static char home[128]; 72120253Sjoerg 72220253Sjoerg if (cnf->home == NULL || *cnf->home == '\0') 72320267Sjoerg cmderr(EX_CONFIG, "no base home directory set\n"); 72420253Sjoerg sprintf(home, "%s/%s", cnf->home, user); 72520253Sjoerg return home; 72620253Sjoerg } 72720253Sjoerg} 72820253Sjoerg 72920253Sjoergstatic char * 73020253Sjoergshell_path(char const * path, char *shells[], char *sh) 73120253Sjoerg{ 73220253Sjoerg if (sh != NULL && (*sh == '/' || *sh == '\0')) 73320253Sjoerg return sh; /* specified full path or forced none */ 73420253Sjoerg else { 73520253Sjoerg char *p; 73620253Sjoerg char paths[_UC_MAXLINE]; 73720253Sjoerg 73820253Sjoerg /* 73920253Sjoerg * We need to search paths 74020253Sjoerg */ 74120253Sjoerg strncpy(paths, path, sizeof paths); 74220253Sjoerg paths[sizeof paths - 1] = '\0'; 74320253Sjoerg for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 74420253Sjoerg int i; 74520253Sjoerg static char shellpath[256]; 74620253Sjoerg 74720253Sjoerg if (sh != NULL) { 74820253Sjoerg sprintf(shellpath, "%s/%s", p, sh); 74920253Sjoerg if (access(shellpath, X_OK) == 0) 75020253Sjoerg return shellpath; 75120253Sjoerg } else 75220253Sjoerg for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 75320253Sjoerg sprintf(shellpath, "%s/%s", p, shells[i]); 75420253Sjoerg if (access(shellpath, X_OK) == 0) 75520253Sjoerg return shellpath; 75620253Sjoerg } 75720253Sjoerg } 75820253Sjoerg if (sh == NULL) 75920267Sjoerg cmderr(EX_OSFILE, "can't find shell `%s' in shell paths\n", sh); 76020267Sjoerg cmderr(EX_CONFIG, "no default shell available or defined\n"); 76120253Sjoerg return NULL; 76220253Sjoerg } 76320253Sjoerg} 76420253Sjoerg 76520253Sjoerg 76620253Sjoergstatic char * 76720253Sjoergpw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 76820253Sjoerg{ 76920253Sjoerg char *sh = newshell; 77020253Sjoerg struct carg *arg = getarg(args, 's'); 77120253Sjoerg 77220253Sjoerg if (newshell == NULL && arg != NULL) 77320253Sjoerg sh = arg->val; 77420253Sjoerg return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 77520253Sjoerg} 77620253Sjoerg 77720253Sjoergstatic char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ."; 77820253Sjoerg 77920253Sjoergchar * 78020253Sjoergpw_pwcrypt(char *password) 78120253Sjoerg{ 78220253Sjoerg int i; 78320253Sjoerg char salt[12]; 78420253Sjoerg 78520253Sjoerg static char buf[256]; 78620253Sjoerg 78720253Sjoerg /* 78820253Sjoerg * Calculate a salt value 78920253Sjoerg */ 79020555Sdavidn srandom((unsigned) (time(NULL) ^ getpid())); 79120253Sjoerg for (i = 0; i < 8; i++) 79220253Sjoerg salt[i] = chars[random() % 63]; 79320253Sjoerg salt[i] = '\0'; 79420253Sjoerg 79520253Sjoerg return strcpy(buf, crypt(password, salt)); 79620253Sjoerg} 79720253Sjoerg 79820590Sdavidn#if defined(__FreeBSD__) 79920590Sdavidn 80020590Sdavidn#if defined(USE_MD5RAND) 80120555Sdavidnu_char * 80220590Sdavidnpw_getrand(u_char *buf, int len) /* cryptographically secure rng */ 80320555Sdavidn{ 80420590Sdavidn int i; 80520590Sdavidn for (i=0;i<len;i+=16) { 80620590Sdavidn u_char ubuf[16]; 80720590Sdavidn 80820590Sdavidn MD5_CTX md5_ctx; 80920590Sdavidn struct timeval tv, tvo; 81020590Sdavidn struct rusage ru; 81120590Sdavidn int n=0; 81220590Sdavidn int t; 81320590Sdavidn 81420590Sdavidn MD5Init (&md5_ctx); 81520590Sdavidn t=getpid(); 81620590Sdavidn MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 81720590Sdavidn t=getppid(); 81820590Sdavidn MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 81920590Sdavidn gettimeofday (&tvo, NULL); 82020590Sdavidn do { 82120590Sdavidn getrusage (RUSAGE_SELF, &ru); 82220590Sdavidn MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru); 82320590Sdavidn gettimeofday (&tv, NULL); 82420590Sdavidn MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv); 82520590Sdavidn } while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000); 82620590Sdavidn MD5Final (ubuf, &md5_ctx); 82720590Sdavidn memcpy(buf+i, ubuf, MIN(16, len-n)); 82820590Sdavidn } 82920590Sdavidn return buf; 83020555Sdavidn} 83120253Sjoerg 83220590Sdavidn#else /* Use random device (preferred) */ 83320590Sdavidn 83420555Sdavidnstatic u_char * 83520555Sdavidnpw_getrand(u_char *buf, int len) 83620555Sdavidn{ 83720555Sdavidn int fd; 83820555Sdavidn fd = open("/dev/urandom", O_RDONLY); 83920590Sdavidn if (fd==-1) 84020590Sdavidn cmderr(EX_OSFILE, "can't open /dev/urandom: %s\n", strerror(errno)); 84120590Sdavidn else if (read(fd, buf, len)!=len) 84220590Sdavidn cmderr(EX_IOERR, "read error on /dev/urandom\n"); 84320555Sdavidn close(fd); 84420555Sdavidn return buf; 84520555Sdavidn} 84620555Sdavidn 84720590Sdavidn#endif 84820590Sdavidn 84920590Sdavidn#else /* Portable version */ 85020590Sdavidn 85120590Sdavidnstatic u_char * 85220590Sdavidnpw_getrand(u_char *buf, int len) 85320590Sdavidn{ 85420590Sdavidn int i; 85520590Sdavidn 85620590Sdavidn for (i = 0; i < len; i++) { 85720590Sdavidn unsigned val = random(); 85820590Sdavidn /* Use all bits in the random value */ 85920590Sdavidn buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val); 86020590Sdavidn } 86120590Sdavidn return buf; 86220590Sdavidn} 86320590Sdavidn 86420590Sdavidn#endif 86520590Sdavidn 86620253Sjoergstatic char * 86720253Sjoergpw_password(struct userconf * cnf, struct cargs * args, char const * user) 86820253Sjoerg{ 86920253Sjoerg int i, l; 87020253Sjoerg char pwbuf[32]; 87120555Sdavidn u_char rndbuf[sizeof pwbuf]; 87220253Sjoerg 87320253Sjoerg switch (cnf->default_password) { 87420253Sjoerg case -1: /* Random password */ 87520555Sdavidn srandom((unsigned) (time(NULL) ^ getpid())); 87620253Sjoerg l = (random() % 8 + 8); /* 8 - 16 chars */ 87720555Sdavidn pw_getrand(rndbuf, l); 87820253Sjoerg for (i = 0; i < l; i++) 87920555Sdavidn pwbuf[i] = chars[rndbuf[i] % sizeof(chars)]; 88020253Sjoerg pwbuf[i] = '\0'; 88120253Sjoerg 88220253Sjoerg /* 88320253Sjoerg * We give this information back to the user 88420253Sjoerg */ 88520267Sjoerg if (getarg(args, 'h') == NULL && getarg(args, 'N') == NULL) { 88620712Sdavidn if (isatty(1)) 88720712Sdavidn printf("Password for '%s' is: ", user); 88820253Sjoerg printf("%s\n", pwbuf); 88920253Sjoerg fflush(stdout); 89020253Sjoerg } 89120253Sjoerg break; 89220253Sjoerg 89320253Sjoerg case -2: /* No password at all! */ 89420253Sjoerg return ""; 89520253Sjoerg 89620253Sjoerg case 0: /* No login - default */ 89720253Sjoerg default: 89820253Sjoerg return "*"; 89920253Sjoerg 90020253Sjoerg case 1: /* user's name */ 90120253Sjoerg strncpy(pwbuf, user, sizeof pwbuf); 90220253Sjoerg pwbuf[sizeof pwbuf - 1] = '\0'; 90320253Sjoerg break; 90420253Sjoerg } 90520253Sjoerg return pw_pwcrypt(pwbuf); 90620253Sjoerg} 90720253Sjoerg 90820253Sjoerg 90920253Sjoergstatic int 91020253Sjoergprint_user(struct passwd * pwd, int pretty) 91120253Sjoerg{ 91220253Sjoerg if (!pretty) { 91320253Sjoerg char buf[_UC_MAXLINE]; 91420253Sjoerg 91520253Sjoerg fmtpwent(buf, pwd); 91620253Sjoerg fputs(buf, stdout); 91720253Sjoerg } else { 91820267Sjoerg int j; 91920253Sjoerg char *p; 92020253Sjoerg struct group *grp = getgrgid(pwd->pw_gid); 92120253Sjoerg char uname[60] = "User &", office[60] = "[None]", 92220253Sjoerg wphone[60] = "[None]", hphone[60] = "[None]"; 92320590Sdavidn char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 92420590Sdavidn struct tm * tptr; 92520253Sjoerg 92620253Sjoerg if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 92720253Sjoerg strncpy(uname, p, sizeof uname); 92820253Sjoerg uname[sizeof uname - 1] = '\0'; 92920253Sjoerg if ((p = strtok(NULL, ",")) != NULL) { 93020253Sjoerg strncpy(office, p, sizeof office); 93120253Sjoerg office[sizeof office - 1] = '\0'; 93220253Sjoerg if ((p = strtok(NULL, ",")) != NULL) { 93320253Sjoerg strncpy(wphone, p, sizeof wphone); 93420253Sjoerg wphone[sizeof wphone - 1] = '\0'; 93520253Sjoerg if ((p = strtok(NULL, "")) != NULL) { 93620253Sjoerg strncpy(hphone, p, sizeof hphone); 93720253Sjoerg hphone[sizeof hphone - 1] = '\0'; 93820253Sjoerg } 93920253Sjoerg } 94020253Sjoerg } 94120253Sjoerg } 94220253Sjoerg /* 94320253Sjoerg * Handle '&' in gecos field 94420253Sjoerg */ 94520253Sjoerg if ((p = strchr(uname, '&')) != NULL) { 94620253Sjoerg int l = strlen(pwd->pw_name); 94720253Sjoerg int m = strlen(p); 94820253Sjoerg 94920253Sjoerg memmove(p + l, p + 1, m); 95020253Sjoerg memmove(p, pwd->pw_name, l); 95120253Sjoerg *p = (char) toupper(*p); 95220253Sjoerg } 95320590Sdavidn if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 95420590Sdavidn strftime(acexpire, sizeof acexpire, "%c", tptr); 95520590Sdavidn if (pwd->pw_change > (time_t)9 && (tptr = localtime(&pwd->pw_change)) != NULL) 95620590Sdavidn strftime(pwexpire, sizeof pwexpire, "%c", tptr); 95720747Sdavidn printf("Login Name: %-10s #%-16ld Group: %-10s #%ld\n" 95820747Sdavidn " Full Name: %s\n" 95920747Sdavidn " Home: %-26.26s Class: %s\n" 96020747Sdavidn " Shell: %-26.26s Office: %s\n" 96120747Sdavidn "Work Phone: %-26.26s Home Phone: %s\n" 96220747Sdavidn "Acc Expire: %-26.26s Pwd Expire: %s\n", 96320253Sjoerg pwd->pw_name, (long) pwd->pw_uid, 96420253Sjoerg grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid, 96520253Sjoerg uname, pwd->pw_dir, pwd->pw_class, 96620590Sdavidn pwd->pw_shell, office, wphone, hphone, 96720590Sdavidn acexpire, pwexpire); 96820267Sjoerg setgrent(); 96920267Sjoerg j = 0; 97020267Sjoerg while ((grp=getgrent()) != NULL) 97120267Sjoerg { 97220267Sjoerg int i = 0; 97320747Sdavidn while (grp->gr_mem[i] != NULL) 97420267Sjoerg { 97520267Sjoerg if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 97620267Sjoerg { 97720747Sdavidn printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 97820267Sjoerg break; 97920267Sjoerg } 98020267Sjoerg ++i; 98120267Sjoerg } 98220267Sjoerg } 98320267Sjoerg endgrent(); 98420267Sjoerg printf("%s\n", j ? "\n" : ""); 98520253Sjoerg } 98620267Sjoerg return EXIT_SUCCESS; 98720253Sjoerg} 98820253Sjoerg 98920679Sdavidnchar * 99020679Sdavidnpw_checkname(u_char *name, int gecos) 99120253Sjoerg{ 99220253Sjoerg int l = 0; 99321052Sdavidn char const *notch = gecos ? ":!@" : " ,\t:+&#%$^()!@~*?<>=|\\/\""; 99420253Sjoerg 99520253Sjoerg while (name[l]) { 99621052Sdavidn if (strchr(notch, name[l]) != NULL || name[l] < ' ' || name[l] == 127 || 99721052Sdavidn (!gecos && l==0 && name[l] == '-') || /* leading '-' */ 99821052Sdavidn (!gecos && name[l] & 0x80)) /* 8-bit */ 99921052Sdavidn cmderr(EX_DATAERR, (name[l] >= ' ' && name[l] < 127) 100020325Sjoerg ? "invalid character `%c' in field\n" 100121052Sdavidn : "invalid character 0x%02x in field\n", 100220325Sjoerg name[l]); 100320253Sjoerg ++l; 100420253Sjoerg } 100520325Sjoerg if (!gecos && l > MAXLOGNAME) 100620267Sjoerg cmderr(EX_DATAERR, "name too long `%s'\n", name); 100720679Sdavidn return (char *)name; 100820253Sjoerg} 100920253Sjoerg 101020253Sjoerg 101120253Sjoergstatic void 101220253Sjoergrmat(uid_t uid) 101320253Sjoerg{ 101420253Sjoerg DIR *d = opendir("/var/at/jobs"); 101520253Sjoerg 101620253Sjoerg if (d != NULL) { 101720253Sjoerg struct dirent *e; 101820253Sjoerg 101920253Sjoerg while ((e = readdir(d)) != NULL) { 102020253Sjoerg struct stat st; 102120253Sjoerg 102220253Sjoerg if (strncmp(e->d_name, ".lock", 5) != 0 && 102320253Sjoerg stat(e->d_name, &st) == 0 && 102420253Sjoerg !S_ISDIR(st.st_mode) && 102520253Sjoerg st.st_uid == uid) { 102620253Sjoerg char tmp[MAXPATHLEN]; 102720253Sjoerg 102820253Sjoerg sprintf(tmp, "/usr/bin/atrm %s", e->d_name); 102920253Sjoerg system(tmp); 103020253Sjoerg } 103120253Sjoerg } 103220253Sjoerg closedir(d); 103320253Sjoerg } 103420253Sjoerg} 103520747Sdavidn 103620747Sdavidnstatic void 103720747Sdavidnrmskey(char const * name) 103820747Sdavidn{ 103920747Sdavidn static const char etcskey[] = "/etc/skeykeys"; 104021052Sdavidn FILE *fp = fopen(etcskey, "r+"); 104120747Sdavidn 104221052Sdavidn if (fp != NULL) { 104321052Sdavidn char tmp[1024]; 104421052Sdavidn off_t atofs = 0; 104521052Sdavidn int length = strlen(name); 104620747Sdavidn 104721052Sdavidn while (fgets(tmp, sizeof tmp, fp) != NULL) { 104821052Sdavidn if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') { 104921052Sdavidn if (fseek(fp, atofs, SEEK_SET) == 0) { 105021052Sdavidn fwrite("#", 1, 1, fp); /* Comment username out */ 105121052Sdavidn } 105221052Sdavidn break; 105320747Sdavidn } 105421052Sdavidn atofs = ftell(fp); 105520747Sdavidn } 105621052Sdavidn /* 105721052Sdavidn * If we got an error of any sort, don't update! 105821052Sdavidn */ 105921052Sdavidn fclose(fp); 106020747Sdavidn } 106120747Sdavidn} 106220747Sdavidn 1063