pw_user.c revision 24214
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 * 2624214Sache * $Id: pw_user.c,v 1.18 1997/03/11 14:11:43 ache 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> 3922394Sdavidn#include <utmp.h> 4022394Sdavidn#if defined(USE_MD5RAND) 4120555Sdavidn#include <md5.h> 4222394Sdavidn#endif 4320253Sjoerg#include "pw.h" 4420253Sjoerg#include "bitmap.h" 4520253Sjoerg#include "pwupd.h" 4620253Sjoerg 4723318Sache#if (MAXLOGNAME-1) > UT_NAMESIZE 4822394Sdavidn#define LOGNAMESIZE UT_NAMESIZE 4922394Sdavidn#else 5023318Sache#define LOGNAMESIZE (MAXLOGNAME-1) 5122394Sdavidn#endif 5222394Sdavidn 5324214Sachestatic randinit; 5424214Sache 5520253Sjoergstatic int print_user(struct passwd * pwd, int pretty); 5620253Sjoergstatic uid_t pw_uidpolicy(struct userconf * cnf, struct cargs * args); 5720253Sjoergstatic uid_t pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer); 5820253Sjoergstatic time_t pw_pwdpolicy(struct userconf * cnf, struct cargs * args); 5920253Sjoergstatic time_t pw_exppolicy(struct userconf * cnf, struct cargs * args); 6020253Sjoergstatic char *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user); 6120253Sjoergstatic char *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell); 6220253Sjoergstatic char *pw_password(struct userconf * cnf, struct cargs * args, char const * user); 6320253Sjoergstatic char *shell_path(char const * path, char *shells[], char *sh); 6420253Sjoergstatic void rmat(uid_t uid); 6520747Sdavidnstatic void rmskey(char const * name); 6620253Sjoerg 6720253Sjoerg/*- 6820253Sjoerg * -C config configuration file 6920253Sjoerg * -q quiet operation 7020253Sjoerg * -n name login name 7120253Sjoerg * -u uid user id 7220253Sjoerg * -c comment user name/comment 7320253Sjoerg * -d directory home directory 7420253Sjoerg * -e date account expiry date 7520253Sjoerg * -p date password expiry date 7620253Sjoerg * -g grp primary group 7720253Sjoerg * -G grp1,grp2 additional groups 7820253Sjoerg * -m [ -k dir ] create and set up home 7920253Sjoerg * -s shell name of login shell 8020253Sjoerg * -o duplicate uid ok 8120253Sjoerg * -L class user class 8220253Sjoerg * -l name new login name 8320253Sjoerg * -h fd password filehandle 8420253Sjoerg * -F force print or add 8520253Sjoerg * Setting defaults: 8620253Sjoerg * -D set user defaults 8720253Sjoerg * -b dir default home root dir 8820253Sjoerg * -e period default expiry period 8920253Sjoerg * -p period default password change period 9020253Sjoerg * -g group default group 9120253Sjoerg * -G grp1,grp2.. default additional groups 9220253Sjoerg * -L class default login class 9320253Sjoerg * -k dir default home skeleton 9420253Sjoerg * -s shell default shell 9520253Sjoerg * -w method default password method 9620253Sjoerg */ 9720253Sjoerg 9820253Sjoergint 9920253Sjoergpw_user(struct userconf * cnf, int mode, struct cargs * args) 10020253Sjoerg{ 10121330Sdavidn int r, r1; 10220253Sjoerg char *p = NULL; 10320253Sjoerg struct carg *a_name; 10420253Sjoerg struct carg *a_uid; 10520253Sjoerg struct carg *arg; 10620253Sjoerg struct passwd *pwd = NULL; 10720253Sjoerg struct group *grp; 10820253Sjoerg struct stat st; 10920747Sdavidn char line[_PASSWORD_LEN+1]; 11020253Sjoerg 11120253Sjoerg static struct passwd fakeuser = 11220253Sjoerg { 11320253Sjoerg NULL, 11420253Sjoerg "*", 11520253Sjoerg -1, 11620253Sjoerg -1, 11720253Sjoerg 0, 11820253Sjoerg "", 11920253Sjoerg "User &", 12020253Sjoerg "/bin/sh", 12120253Sjoerg 0, 12220253Sjoerg 0 12320253Sjoerg }; 12420253Sjoerg 12520253Sjoerg /* 12620267Sjoerg * With M_NEXT, we only need to return the 12720267Sjoerg * next uid to stdout 12820267Sjoerg */ 12920267Sjoerg if (mode == M_NEXT) 13020267Sjoerg { 13120267Sjoerg uid_t next = pw_uidpolicy(cnf, args); 13220267Sjoerg if (getarg(args, 'q')) 13320267Sjoerg return next; 13420267Sjoerg printf("%ld:", (long)next); 13520267Sjoerg pw_group(cnf, mode, args); 13620267Sjoerg return EXIT_SUCCESS; 13720267Sjoerg } 13820267Sjoerg 13920267Sjoerg /* 14020253Sjoerg * We can do all of the common legwork here 14120253Sjoerg */ 14220253Sjoerg 14320253Sjoerg if ((arg = getarg(args, 'b')) != NULL) { 14420267Sjoerg cnf->home = arg->val; 14520253Sjoerg } 14621052Sdavidn 14721052Sdavidn /* 14821052Sdavidn * If we'll need to use it or we're updating it, 14921052Sdavidn * then create the base home directory if necessary 15021052Sdavidn */ 15121052Sdavidn if (arg != NULL || getarg(args, 'm') != NULL) { 15221052Sdavidn int l = strlen(cnf->home); 15321052Sdavidn 15421052Sdavidn if (l > 1 && cnf->home[l-1] == '/') /* Shave off any trailing path delimiter */ 15521052Sdavidn cnf->home[--l] = '\0'; 15621052Sdavidn 15721052Sdavidn if (l < 2 || *cnf->home != '/') /* Check for absolute path name */ 15821052Sdavidn cmderr(EX_DATAERR, "invalid base directory for home '%s'\n", cnf->home); 15921052Sdavidn 16021052Sdavidn if (stat(cnf->home, &st) == -1) { 16121052Sdavidn char dbuf[MAXPATHLEN]; 16221052Sdavidn 16321242Sdavidn /* 16421242Sdavidn * This is a kludge especially for Joerg :) 16521242Sdavidn * If the home directory would be created in the root partition, then 16621242Sdavidn * we really create it under /usr which is likely to have more space. 16721242Sdavidn * But we create a symlink from cnf->home -> "/usr" -> cnf->home 16821242Sdavidn */ 16921242Sdavidn if (strchr(cnf->home+1, '/') == NULL) { 17021242Sdavidn strcpy(dbuf, "/usr"); 17121242Sdavidn strncat(dbuf, cnf->home, MAXPATHLEN-5); 17221242Sdavidn if (mkdir(dbuf, 0755) != -1 || errno == EEXIST) { 17321242Sdavidn chown(dbuf, 0, 0); 17421242Sdavidn symlink(dbuf, cnf->home); 17521242Sdavidn } 17621242Sdavidn /* If this falls, fall back to old method */ 17721242Sdavidn } 17821052Sdavidn p = strncpy(dbuf, cnf->home, sizeof dbuf); 17921052Sdavidn dbuf[MAXPATHLEN-1] = '\0'; 18021242Sdavidn if (stat(dbuf, &st) == -1) { 18121242Sdavidn while ((p = strchr(++p, '/')) != NULL) { 18221242Sdavidn *p = '\0'; 18321242Sdavidn if (stat(dbuf, &st) == -1) { 18421242Sdavidn if (mkdir(dbuf, 0755) == -1) 18521242Sdavidn goto direrr; 18621242Sdavidn chown(dbuf, 0, 0); 18721242Sdavidn } else if (!S_ISDIR(st.st_mode)) 18821242Sdavidn cmderr(EX_OSFILE, "'%s' (root home parent) is not a directory\n", dbuf); 18921242Sdavidn *p = '/'; 19021242Sdavidn } 19121052Sdavidn } 19221242Sdavidn if (stat(dbuf, &st) == -1) { 19321052Sdavidn if (mkdir(dbuf, 0755) == -1) { 19421052Sdavidn direrr: cmderr(EX_OSFILE, "mkdir '%s': %s\n", dbuf, strerror(errno)); 19521052Sdavidn } 19621052Sdavidn chown(dbuf, 0, 0); 19721052Sdavidn } 19821052Sdavidn } else if (!S_ISDIR(st.st_mode)) 19921052Sdavidn cmderr(EX_OSFILE, "root home `%s' is not a directory\n", cnf->home); 20021052Sdavidn } 20121052Sdavidn 20221052Sdavidn 20320253Sjoerg if ((arg = getarg(args, 'e')) != NULL) 20420253Sjoerg cnf->expire_days = atoi(arg->val); 20520253Sjoerg 20621330Sdavidn if ((arg = getarg(args, 'y')) != NULL) 20721330Sdavidn cnf->nispasswd = arg->val; 20821330Sdavidn 20920253Sjoerg if ((arg = getarg(args, 'p')) != NULL && arg->val) 21020253Sjoerg cnf->password_days = atoi(arg->val); 21120253Sjoerg 21220253Sjoerg if ((arg = getarg(args, 'g')) != NULL) { 21320253Sjoerg p = arg->val; 21420253Sjoerg if ((grp = getgrnam(p)) == NULL) { 21520253Sjoerg if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 21620267Sjoerg cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 21720253Sjoerg } 21820253Sjoerg cnf->default_group = newstr(grp->gr_name); 21920253Sjoerg } 22020253Sjoerg if ((arg = getarg(args, 'L')) != NULL) 22120679Sdavidn cnf->default_class = pw_checkname((u_char *)arg->val, 0); 22220253Sjoerg 22320253Sjoerg if ((arg = getarg(args, 'G')) != NULL && arg->val) { 22420253Sjoerg int i = 0; 22520253Sjoerg 22620747Sdavidn for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) { 22720253Sjoerg if ((grp = getgrnam(p)) == NULL) { 22820253Sjoerg if (!isdigit(*p) || (grp = getgrgid((gid_t) atoi(p))) == NULL) 22920267Sjoerg cmderr(EX_NOUSER, "group `%s' does not exist\n", p); 23020253Sjoerg } 23120747Sdavidn if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1) 23220747Sdavidn cnf->groups[i++] = newstr(grp->gr_name); 23320253Sjoerg } 23420747Sdavidn while (i < cnf->numgroups) 23520253Sjoerg cnf->groups[i++] = NULL; 23620253Sjoerg } 23720253Sjoerg if ((arg = getarg(args, 'k')) != NULL) { 23820253Sjoerg if (stat(cnf->dotdir = arg->val, &st) == -1 || S_ISDIR(st.st_mode)) 23920267Sjoerg cmderr(EX_OSFILE, "skeleton `%s' is not a directory or does not exist\n", cnf->dotdir); 24020253Sjoerg } 24120253Sjoerg if ((arg = getarg(args, 's')) != NULL) 24220253Sjoerg cnf->shell_default = arg->val; 24320253Sjoerg 24420253Sjoerg if (mode == M_ADD && getarg(args, 'D')) { 24520253Sjoerg if (getarg(args, 'n') != NULL) 24620267Sjoerg cmderr(EX_DATAERR, "can't combine `-D' with `-n name'\n"); 24720253Sjoerg if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 24820253Sjoerg if ((cnf->min_uid = (uid_t) atoi(p)) == 0) 24920253Sjoerg cnf->min_uid = 1000; 25020253Sjoerg if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid) 25120253Sjoerg cnf->max_uid = 32000; 25220253Sjoerg } 25320253Sjoerg if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 25420253Sjoerg if ((cnf->min_gid = (gid_t) atoi(p)) == 0) 25520253Sjoerg cnf->min_gid = 1000; 25620253Sjoerg if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid) 25720253Sjoerg cnf->max_gid = 32000; 25820253Sjoerg } 25920253Sjoerg if ((arg = getarg(args, 'w')) != NULL) 26020253Sjoerg cnf->default_password = boolean_val(arg->val, cnf->default_password); 26120253Sjoerg 26220253Sjoerg arg = getarg(args, 'C'); 26320253Sjoerg if (write_userconfig(arg ? arg->val : NULL)) 26420267Sjoerg return EXIT_SUCCESS; 26520253Sjoerg perror("config update"); 26620267Sjoerg return EX_IOERR; 26720253Sjoerg } 26820253Sjoerg if (mode == M_PRINT && getarg(args, 'a')) { 26920267Sjoerg int pretty = getarg(args, 'P') != NULL; 27020253Sjoerg 27120253Sjoerg setpwent(); 27220253Sjoerg while ((pwd = getpwent()) != NULL) 27320253Sjoerg print_user(pwd, pretty); 27420253Sjoerg endpwent(); 27520267Sjoerg return EXIT_SUCCESS; 27620253Sjoerg } 27720253Sjoerg if ((a_name = getarg(args, 'n')) != NULL) 27820679Sdavidn pwd = getpwnam(pw_checkname((u_char *)a_name->val, 0)); 27920253Sjoerg a_uid = getarg(args, 'u'); 28020253Sjoerg 28120253Sjoerg if (a_uid == NULL) { 28220253Sjoerg if (a_name == NULL) 28320267Sjoerg cmderr(EX_DATAERR, "user name or id required\n"); 28420253Sjoerg 28520253Sjoerg /* 28620253Sjoerg * Determine whether 'n' switch is name or uid - we don't 28720253Sjoerg * really don't really care which we have, but we need to 28820253Sjoerg * know. 28920253Sjoerg */ 29020253Sjoerg if (mode != M_ADD && pwd == NULL && isdigit(*a_name->val) && atoi(a_name->val) > 0) { /* Assume uid */ 29120253Sjoerg (a_uid = a_name)->ch = 'u'; 29220253Sjoerg a_name = NULL; 29320253Sjoerg } 29420253Sjoerg } 29520253Sjoerg /* 29620253Sjoerg * Update, delete & print require that the user exists 29720253Sjoerg */ 29820253Sjoerg if (mode == M_UPDATE || mode == M_DELETE || mode == M_PRINT) { 29920253Sjoerg if (a_name == NULL && pwd == NULL) /* Try harder */ 30020253Sjoerg pwd = getpwuid(atoi(a_uid->val)); 30120253Sjoerg 30220253Sjoerg if (pwd == NULL) { 30320253Sjoerg if (mode == M_PRINT && getarg(args, 'F')) { 30420253Sjoerg fakeuser.pw_name = a_name ? a_name->val : "nouser"; 30520253Sjoerg fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1; 30620267Sjoerg return print_user(&fakeuser, getarg(args, 'P') != NULL); 30720253Sjoerg } 30820253Sjoerg if (a_name == NULL) 30920267Sjoerg cmderr(EX_NOUSER, "no such uid `%s'\n", a_uid->val); 31020267Sjoerg cmderr(EX_NOUSER, "no such user `%s'\n", a_name->val); 31120253Sjoerg } 31220253Sjoerg if (a_name == NULL) /* May be needed later */ 31320253Sjoerg a_name = addarg(args, 'n', newstr(pwd->pw_name)); 31420253Sjoerg 31520253Sjoerg /* 31620253Sjoerg * Handle deletions now 31720253Sjoerg */ 31820253Sjoerg if (mode == M_DELETE) { 31920253Sjoerg char file[MAXPATHLEN]; 32020253Sjoerg char home[MAXPATHLEN]; 32120253Sjoerg uid_t uid = pwd->pw_uid; 32220253Sjoerg 32320253Sjoerg if (strcmp(pwd->pw_name, "root") == 0) 32420267Sjoerg cmderr(EX_DATAERR, "cannot remove user 'root'\n"); 32520253Sjoerg 32620253Sjoerg /* 32720747Sdavidn * Remove skey record from /etc/skeykeys 32820747Sdavidn */ 32920747Sdavidn 33020747Sdavidn rmskey(pwd->pw_name); 33120747Sdavidn 33220747Sdavidn /* 33320253Sjoerg * Remove crontabs 33420253Sjoerg */ 33520253Sjoerg sprintf(file, "/var/cron/tabs/%s", pwd->pw_name); 33620253Sjoerg if (access(file, F_OK) == 0) { 33720253Sjoerg sprintf(file, "crontab -u %s -r", pwd->pw_name); 33820253Sjoerg system(file); 33920253Sjoerg } 34020253Sjoerg /* 34120253Sjoerg * Save these for later, since contents of pwd may be 34220253Sjoerg * invalidated by deletion 34320253Sjoerg */ 34420253Sjoerg sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 34520253Sjoerg strncpy(home, pwd->pw_dir, sizeof home); 34620253Sjoerg home[sizeof home - 1] = '\0'; 34720253Sjoerg 34820253Sjoerg if (!delpwent(pwd)) 34920267Sjoerg cmderr(EX_IOERR, "Error updating passwd file: %s\n", strerror(errno)); 35021330Sdavidn 35121330Sdavidn if (cnf->nispasswd && *cnf->nispasswd=='/' && !delnispwent(cnf->nispasswd, a_name->val)) 35221330Sdavidn perror("WARNING: NIS passwd update"); 35321330Sdavidn 35420253Sjoerg editgroups(a_name->val, NULL); 35520253Sjoerg 35620253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid); 35720253Sjoerg 35820253Sjoerg /* 35920253Sjoerg * Remove mail file 36020253Sjoerg */ 36120253Sjoerg remove(file); 36220253Sjoerg 36320253Sjoerg /* 36420253Sjoerg * Remove at jobs 36520253Sjoerg */ 36620253Sjoerg if (getpwuid(uid) == NULL) 36720253Sjoerg rmat(uid); 36820253Sjoerg 36920253Sjoerg /* 37020253Sjoerg * Remove home directory and contents 37120253Sjoerg */ 37220253Sjoerg if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) { 37320253Sjoerg if (stat(home, &st) != -1) { 37420253Sjoerg rm_r(home, uid); 37520253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved", 37620253Sjoerg a_name->val, (long) uid, home, 37720253Sjoerg stat(home, &st) == -1 ? "" : "not completely "); 37820253Sjoerg } 37920253Sjoerg } 38020267Sjoerg return EXIT_SUCCESS; 38120253Sjoerg } else if (mode == M_PRINT) 38220267Sjoerg return print_user(pwd, getarg(args, 'P') != NULL); 38320253Sjoerg 38420253Sjoerg /* 38520253Sjoerg * The rest is edit code 38620253Sjoerg */ 38720253Sjoerg if ((arg = getarg(args, 'l')) != NULL) { 38820253Sjoerg if (strcmp(pwd->pw_name, "root") == 0) 38920267Sjoerg cmderr(EX_DATAERR, "can't rename `root' account\n"); 39020679Sdavidn pwd->pw_name = pw_checkname((u_char *)arg->val, 0); 39120253Sjoerg } 39220253Sjoerg if ((arg = getarg(args, 'u')) != NULL && isdigit(*arg->val)) { 39320253Sjoerg pwd->pw_uid = (uid_t) atol(arg->val); 39420253Sjoerg if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 39520267Sjoerg cmderr(EX_DATAERR, "can't change uid of `root' account\n"); 39620253Sjoerg if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 39720253Sjoerg fprintf(stderr, "WARNING: account `%s' will have a uid of 0 (superuser access!)\n", pwd->pw_name); 39820253Sjoerg } 39920253Sjoerg if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) /* Already checked this */ 40020253Sjoerg pwd->pw_gid = (gid_t) getgrnam(cnf->default_group)->gr_gid; 40120253Sjoerg 40220253Sjoerg if ((arg = getarg(args, 'p')) != NULL) { 40320253Sjoerg if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 40420253Sjoerg pwd->pw_change = 0; 40520253Sjoerg else { 40620253Sjoerg time_t now = time(NULL); 40720253Sjoerg time_t expire = parse_date(now, arg->val); 40820253Sjoerg 40920253Sjoerg if (now == expire) 41020267Sjoerg cmderr(EX_DATAERR, "Invalid password change date `%s'\n", arg->val); 41120253Sjoerg pwd->pw_change = expire; 41220253Sjoerg } 41320253Sjoerg } 41420267Sjoerg if ((arg = getarg(args, 'e')) != NULL) { 41520253Sjoerg if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) 41620253Sjoerg pwd->pw_expire = 0; 41720253Sjoerg else { 41820253Sjoerg time_t now = time(NULL); 41920253Sjoerg time_t expire = parse_date(now, arg->val); 42020253Sjoerg 42120253Sjoerg if (now == expire) 42220267Sjoerg cmderr(EX_DATAERR, "Invalid account expiry date `%s'\n", arg->val); 42320253Sjoerg pwd->pw_expire = expire; 42420253Sjoerg } 42520253Sjoerg } 42620253Sjoerg if ((arg = getarg(args, 's')) != NULL) 42720253Sjoerg pwd->pw_shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 42820253Sjoerg 42920253Sjoerg if (getarg(args, 'L')) 43020253Sjoerg pwd->pw_class = cnf->default_class; 43120253Sjoerg 43220747Sdavidn if ((arg = getarg(args, 'd')) != NULL) { 43320747Sdavidn if (stat(pwd->pw_dir = arg->val, &st) == -1) { 43420747Sdavidn if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0) 43520747Sdavidn fprintf(stderr, "WARNING: home `%s' does not exist\n", pwd->pw_dir); 43620747Sdavidn } else if (!S_ISDIR(st.st_mode)) 43720747Sdavidn fprintf(stderr, "WARNING: home `%s' is not a directory\n", pwd->pw_dir); 43820747Sdavidn } 43920747Sdavidn 44020267Sjoerg if ((arg = getarg(args, 'w')) != NULL && getarg(args, 'h') == NULL) 44120267Sjoerg pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 44220267Sjoerg 44320253Sjoerg } else { 44420253Sjoerg if (a_name == NULL) /* Required */ 44520267Sjoerg cmderr(EX_DATAERR, "login name required\n"); 44620253Sjoerg else if ((pwd = getpwnam(a_name->val)) != NULL) /* Exists */ 44720267Sjoerg cmderr(EX_DATAERR, "login name `%s' already exists\n", a_name->val); 44820253Sjoerg 44920253Sjoerg /* 45020253Sjoerg * Now, set up defaults for a new user 45120253Sjoerg */ 45220253Sjoerg pwd = &fakeuser; 45320253Sjoerg pwd->pw_name = a_name->val; 45420253Sjoerg pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 45520253Sjoerg pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 45620253Sjoerg pwd->pw_uid = pw_uidpolicy(cnf, args); 45720253Sjoerg pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid); 45820253Sjoerg pwd->pw_change = pw_pwdpolicy(cnf, args); 45920253Sjoerg pwd->pw_expire = pw_exppolicy(cnf, args); 46020253Sjoerg pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 46120253Sjoerg pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 46220253Sjoerg 46320253Sjoerg if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 46420253Sjoerg fprintf(stderr, "WARNING: new account `%s' has a uid of 0 (superuser access!)\n", pwd->pw_name); 46520253Sjoerg } 46620253Sjoerg 46720253Sjoerg /* 46820253Sjoerg * Shared add/edit code 46920253Sjoerg */ 47020253Sjoerg if ((arg = getarg(args, 'c')) != NULL) 47120679Sdavidn pwd->pw_gecos = pw_checkname((u_char *)arg->val, 1); 47220253Sjoerg 47320253Sjoerg if ((arg = getarg(args, 'h')) != NULL) { 47420253Sjoerg if (strcmp(arg->val, "-") == 0) 47520253Sjoerg pwd->pw_passwd = "*"; /* No access */ 47620253Sjoerg else { 47720253Sjoerg int fd = atoi(arg->val); 47820253Sjoerg int b; 47920253Sjoerg int istty = isatty(fd); 48020253Sjoerg struct termios t; 48120253Sjoerg 48220253Sjoerg if (istty) { 48320253Sjoerg if (tcgetattr(fd, &t) == -1) 48420253Sjoerg istty = 0; 48520253Sjoerg else { 48620253Sjoerg struct termios n = t; 48720253Sjoerg 48820253Sjoerg /* Disable echo */ 48920253Sjoerg n.c_lflag &= ~(ECHO); 49020253Sjoerg tcsetattr(fd, TCSANOW, &n); 49120253Sjoerg printf("%sassword for user %s:", (mode == M_UPDATE) ? "New p" : "P", pwd->pw_name); 49220253Sjoerg fflush(stdout); 49320253Sjoerg } 49420253Sjoerg } 49520253Sjoerg b = read(fd, line, sizeof(line) - 1); 49620253Sjoerg if (istty) { /* Restore state */ 49720253Sjoerg tcsetattr(fd, TCSANOW, &t); 49820253Sjoerg fputc('\n', stdout); 49920253Sjoerg fflush(stdout); 50020253Sjoerg } 50120253Sjoerg if (b < 0) { 50220253Sjoerg perror("-h file descriptor"); 50320267Sjoerg return EX_IOERR; 50420253Sjoerg } 50520253Sjoerg line[b] = '\0'; 50620253Sjoerg if ((p = strpbrk(line, " \t\r\n")) != NULL) 50720253Sjoerg *p = '\0'; 50820253Sjoerg if (!*line) 50920267Sjoerg cmderr(EX_DATAERR, "empty password read on file descriptor %d\n", fd); 51020253Sjoerg pwd->pw_passwd = pw_pwcrypt(line); 51120253Sjoerg } 51220253Sjoerg } 51320267Sjoerg 51420267Sjoerg /* 51520267Sjoerg * Special case: -N only displays & exits 51620267Sjoerg */ 51720267Sjoerg if (getarg(args, 'N') != NULL) 51820267Sjoerg return print_user(pwd, getarg(args, 'P') != NULL); 51920267Sjoerg 52021330Sdavidn r = r1 = 1; 52121330Sdavidn if (mode == M_ADD) { 52221330Sdavidn r = addpwent(pwd); 52321330Sdavidn if (r && cnf->nispasswd && *cnf->nispasswd=='/') 52421330Sdavidn r1 = addnispwent(cnf->nispasswd, pwd); 52521330Sdavidn } else if (mode == M_UPDATE) { 52621330Sdavidn r = chgpwent(a_name->val, pwd); 52721330Sdavidn if (r && cnf->nispasswd && *cnf->nispasswd=='/') 52821330Sdavidn r1 = chgnispwent(cnf->nispasswd, a_name->val, pwd); 52921330Sdavidn } 53021330Sdavidn 53121330Sdavidn if (!r) { 53220253Sjoerg perror("password update"); 53320267Sjoerg return EX_IOERR; 53421330Sdavidn } else if (!r1) { 53521330Sdavidn perror("WARNING: NIS password update"); 53621330Sdavidn /* Keep on trucking */ 53720253Sjoerg } 53821330Sdavidn 53920253Sjoerg /* 54020253Sjoerg * Ok, user is created or changed - now edit group file 54120253Sjoerg */ 54220253Sjoerg 54320253Sjoerg if (mode == M_ADD || getarg(args, 'G') != NULL) 54420253Sjoerg editgroups(pwd->pw_name, cnf->groups); 54520253Sjoerg 54620253Sjoerg /* pwd may have been invalidated */ 54720253Sjoerg if ((pwd = getpwnam(a_name->val)) == NULL) 54820267Sjoerg cmderr(EX_NOUSER, "user '%s' disappeared during update\n", a_name->val); 54920253Sjoerg 55020253Sjoerg grp = getgrgid(pwd->pw_gid); 55120253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld):%s(%d):%s:%s:%s", 55220253Sjoerg pwd->pw_name, (long) pwd->pw_uid, 55320253Sjoerg grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1), 55420253Sjoerg pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 55520253Sjoerg 55620253Sjoerg /* 55720253Sjoerg * If adding, let's touch and chown the user's mail file. This is not 55820253Sjoerg * strictly necessary under BSD with a 0755 maildir but it also 55920253Sjoerg * doesn't hurt anything to create the empty mailfile 56020253Sjoerg */ 56120253Sjoerg if (mode == M_ADD) { 56220253Sjoerg FILE *fp; 56320253Sjoerg 56420253Sjoerg sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 56520253Sjoerg close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 56620253Sjoerg * mtime */ 56720253Sjoerg chown(line, pwd->pw_uid, pwd->pw_gid); 56820253Sjoerg 56920253Sjoerg /* 57020253Sjoerg * Send mail to the new user as well, if we are asked to 57120253Sjoerg */ 57220253Sjoerg if (cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 57320253Sjoerg FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 57420253Sjoerg 57520253Sjoerg if (pfp == NULL) 57620253Sjoerg perror("sendmail"); 57720253Sjoerg else { 57820253Sjoerg fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 57920253Sjoerg while (fgets(line, sizeof(line), fp) != NULL) { 58020253Sjoerg /* Do substitutions? */ 58120253Sjoerg fputs(line, pfp); 58220253Sjoerg } 58320253Sjoerg pclose(pfp); 58420253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent", 58520253Sjoerg pwd->pw_name, (long) pwd->pw_uid); 58620253Sjoerg } 58720253Sjoerg fclose(fp); 58820253Sjoerg } 58920253Sjoerg } 59020253Sjoerg /* 59120253Sjoerg * Finally, let's create and populate the user's home directory. Note 59220253Sjoerg * that this also `works' for editing users if -m is used, but 59320253Sjoerg * existing files will *not* be overwritten. 59420253Sjoerg */ 59520253Sjoerg if (getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 59620253Sjoerg copymkdir(pwd->pw_dir, cnf->dotdir, 0755, pwd->pw_uid, pwd->pw_gid); 59720253Sjoerg pw_log(cnf, mode, W_USER, "%s(%ld) home %s made", 59820253Sjoerg pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir); 59920253Sjoerg } 60020267Sjoerg return EXIT_SUCCESS; 60120253Sjoerg} 60220253Sjoerg 60320253Sjoerg 60420253Sjoergstatic uid_t 60520253Sjoergpw_uidpolicy(struct userconf * cnf, struct cargs * args) 60620253Sjoerg{ 60720253Sjoerg struct passwd *pwd; 60820253Sjoerg uid_t uid = (uid_t) - 1; 60920253Sjoerg struct carg *a_uid = getarg(args, 'u'); 61020253Sjoerg 61120253Sjoerg /* 61220253Sjoerg * Check the given uid, if any 61320253Sjoerg */ 61420253Sjoerg if (a_uid != NULL) { 61520253Sjoerg uid = (uid_t) atol(a_uid->val); 61620253Sjoerg 61720253Sjoerg if ((pwd = getpwuid(uid)) != NULL && getarg(args, 'o') == NULL) 61820267Sjoerg cmderr(EX_DATAERR, "uid `%ld' has already been allocated\n", (long) pwd->pw_uid); 61920253Sjoerg } else { 62020253Sjoerg struct bitmap bm; 62120253Sjoerg 62220253Sjoerg /* 62320253Sjoerg * We need to allocate the next available uid under one of 62420253Sjoerg * two policies a) Grab the first unused uid b) Grab the 62520253Sjoerg * highest possible unused uid 62620253Sjoerg */ 62720253Sjoerg if (cnf->min_uid >= cnf->max_uid) { /* Sanity 62820253Sjoerg * claus^H^H^H^Hheck */ 62920253Sjoerg cnf->min_uid = 1000; 63020253Sjoerg cnf->max_uid = 32000; 63120253Sjoerg } 63220253Sjoerg bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 63320253Sjoerg 63420253Sjoerg /* 63520253Sjoerg * Now, let's fill the bitmap from the password file 63620253Sjoerg */ 63720253Sjoerg setpwent(); 63820253Sjoerg while ((pwd = getpwent()) != NULL) 63920253Sjoerg if (pwd->pw_uid >= (int) cnf->min_uid && pwd->pw_uid <= (int) cnf->max_uid) 64020253Sjoerg bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 64120253Sjoerg endpwent(); 64220253Sjoerg 64320253Sjoerg /* 64420253Sjoerg * Then apply the policy, with fallback to reuse if necessary 64520253Sjoerg */ 64620253Sjoerg if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 64720253Sjoerg uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 64820253Sjoerg 64920253Sjoerg /* 65020253Sjoerg * Another sanity check 65120253Sjoerg */ 65220253Sjoerg if (uid < cnf->min_uid || uid > cnf->max_uid) 65320267Sjoerg cmderr(EX_SOFTWARE, "unable to allocate a new uid - range fully used\n"); 65420253Sjoerg bm_dealloc(&bm); 65520253Sjoerg } 65620253Sjoerg return uid; 65720253Sjoerg} 65820253Sjoerg 65920253Sjoerg 66020253Sjoergstatic uid_t 66120253Sjoergpw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer) 66220253Sjoerg{ 66320253Sjoerg struct group *grp; 66420253Sjoerg gid_t gid = (uid_t) - 1; 66520253Sjoerg struct carg *a_gid = getarg(args, 'g'); 66620253Sjoerg 66720253Sjoerg /* 66820253Sjoerg * If no arg given, see if default can help out 66920253Sjoerg */ 67020253Sjoerg if (a_gid == NULL && cnf->default_group && *cnf->default_group) 67120253Sjoerg a_gid = addarg(args, 'g', cnf->default_group); 67220253Sjoerg 67320253Sjoerg /* 67420253Sjoerg * Check the given gid, if any 67520253Sjoerg */ 67620267Sjoerg setgrent(); 67720253Sjoerg if (a_gid != NULL) { 67820253Sjoerg if ((grp = getgrnam(a_gid->val)) == NULL) { 67920253Sjoerg gid = (gid_t) atol(a_gid->val); 68020253Sjoerg if ((gid == 0 && !isdigit(*a_gid->val)) || (grp = getgrgid(gid)) == NULL) 68120267Sjoerg cmderr(EX_NOUSER, "group `%s' is not defined\n", a_gid->val); 68220253Sjoerg } 68320253Sjoerg gid = grp->gr_gid; 68420267Sjoerg } else if ((grp = getgrnam(nam)) != NULL && grp->gr_mem[0] == NULL) { 68520267Sjoerg gid = grp->gr_gid; /* Already created? Use it anyway... */ 68620253Sjoerg } else { 68720253Sjoerg struct cargs grpargs; 68820253Sjoerg char tmp[32]; 68920253Sjoerg 69020253Sjoerg LIST_INIT(&grpargs); 69120253Sjoerg addarg(&grpargs, 'n', nam); 69220253Sjoerg 69320253Sjoerg /* 69420253Sjoerg * We need to auto-create a group with the user's name. We 69520253Sjoerg * can send all the appropriate output to our sister routine 69620253Sjoerg * bit first see if we can create a group with gid==uid so we 69720253Sjoerg * can keep the user and group ids in sync. We purposely do 69820253Sjoerg * NOT check the gid range if we can force the sync. If the 69920253Sjoerg * user's name dups an existing group, then the group add 70020253Sjoerg * function will happily handle that case for us and exit. 70120253Sjoerg */ 70220253Sjoerg if (getgrgid(prefer) == NULL) { 70320253Sjoerg sprintf(tmp, "%lu", (unsigned long) prefer); 70420253Sjoerg addarg(&grpargs, 'g', tmp); 70520253Sjoerg } 70620267Sjoerg if (getarg(args, 'N')) 70720267Sjoerg { 70820267Sjoerg addarg(&grpargs, 'N', NULL); 70920267Sjoerg addarg(&grpargs, 'q', NULL); 71020267Sjoerg gid = pw_group(cnf, M_NEXT, &grpargs); 71120267Sjoerg } 71220267Sjoerg else 71320267Sjoerg { 71420267Sjoerg pw_group(cnf, M_ADD, &grpargs); 71520267Sjoerg if ((grp = getgrnam(nam)) != NULL) 71620267Sjoerg gid = grp->gr_gid; 71720267Sjoerg } 71820253Sjoerg a_gid = grpargs.lh_first; 71920253Sjoerg while (a_gid != NULL) { 72020253Sjoerg struct carg *t = a_gid->list.le_next; 72120253Sjoerg LIST_REMOVE(a_gid, list); 72220253Sjoerg a_gid = t; 72320253Sjoerg } 72420253Sjoerg } 72520267Sjoerg endgrent(); 72620253Sjoerg return gid; 72720253Sjoerg} 72820253Sjoerg 72920253Sjoerg 73020253Sjoergstatic time_t 73120253Sjoergpw_pwdpolicy(struct userconf * cnf, struct cargs * args) 73220253Sjoerg{ 73320253Sjoerg time_t result = 0; 73420253Sjoerg time_t now = time(NULL); 73520253Sjoerg struct carg *arg = getarg(args, 'e'); 73620253Sjoerg 73720253Sjoerg if (arg != NULL) { 73820253Sjoerg if ((result = parse_date(now, arg->val)) == now) 73920267Sjoerg cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 74020253Sjoerg } else if (cnf->password_days > 0) 74120253Sjoerg result = now + ((long) cnf->password_days * 86400L); 74220253Sjoerg return result; 74320253Sjoerg} 74420253Sjoerg 74520253Sjoerg 74620253Sjoergstatic time_t 74720253Sjoergpw_exppolicy(struct userconf * cnf, struct cargs * args) 74820253Sjoerg{ 74920253Sjoerg time_t result = 0; 75020253Sjoerg time_t now = time(NULL); 75120253Sjoerg struct carg *arg = getarg(args, 'e'); 75220253Sjoerg 75320253Sjoerg if (arg != NULL) { 75420253Sjoerg if ((result = parse_date(now, arg->val)) == now) 75520267Sjoerg cmderr(EX_DATAERR, "invalid date/time `%s'\n", arg->val); 75620253Sjoerg } else if (cnf->expire_days > 0) 75720253Sjoerg result = now + ((long) cnf->expire_days * 86400L); 75820253Sjoerg return result; 75920253Sjoerg} 76020253Sjoerg 76120253Sjoerg 76220253Sjoergstatic char * 76320253Sjoergpw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 76420253Sjoerg{ 76520253Sjoerg struct carg *arg = getarg(args, 'd'); 76620253Sjoerg 76720253Sjoerg if (arg) 76820253Sjoerg return arg->val; 76920253Sjoerg else { 77020253Sjoerg static char home[128]; 77120253Sjoerg 77220253Sjoerg if (cnf->home == NULL || *cnf->home == '\0') 77320267Sjoerg cmderr(EX_CONFIG, "no base home directory set\n"); 77420253Sjoerg sprintf(home, "%s/%s", cnf->home, user); 77520253Sjoerg return home; 77620253Sjoerg } 77720253Sjoerg} 77820253Sjoerg 77920253Sjoergstatic char * 78020253Sjoergshell_path(char const * path, char *shells[], char *sh) 78120253Sjoerg{ 78220253Sjoerg if (sh != NULL && (*sh == '/' || *sh == '\0')) 78320253Sjoerg return sh; /* specified full path or forced none */ 78420253Sjoerg else { 78520253Sjoerg char *p; 78620253Sjoerg char paths[_UC_MAXLINE]; 78720253Sjoerg 78820253Sjoerg /* 78920253Sjoerg * We need to search paths 79020253Sjoerg */ 79120253Sjoerg strncpy(paths, path, sizeof paths); 79220253Sjoerg paths[sizeof paths - 1] = '\0'; 79320253Sjoerg for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 79420253Sjoerg int i; 79520253Sjoerg static char shellpath[256]; 79620253Sjoerg 79720253Sjoerg if (sh != NULL) { 79820253Sjoerg sprintf(shellpath, "%s/%s", p, sh); 79920253Sjoerg if (access(shellpath, X_OK) == 0) 80020253Sjoerg return shellpath; 80120253Sjoerg } else 80220253Sjoerg for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 80320253Sjoerg sprintf(shellpath, "%s/%s", p, shells[i]); 80420253Sjoerg if (access(shellpath, X_OK) == 0) 80520253Sjoerg return shellpath; 80620253Sjoerg } 80720253Sjoerg } 80820253Sjoerg if (sh == NULL) 80920267Sjoerg cmderr(EX_OSFILE, "can't find shell `%s' in shell paths\n", sh); 81020267Sjoerg cmderr(EX_CONFIG, "no default shell available or defined\n"); 81120253Sjoerg return NULL; 81220253Sjoerg } 81320253Sjoerg} 81420253Sjoerg 81520253Sjoerg 81620253Sjoergstatic char * 81720253Sjoergpw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 81820253Sjoerg{ 81920253Sjoerg char *sh = newshell; 82020253Sjoerg struct carg *arg = getarg(args, 's'); 82120253Sjoerg 82220253Sjoerg if (newshell == NULL && arg != NULL) 82320253Sjoerg sh = arg->val; 82420253Sjoerg return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 82520253Sjoerg} 82620253Sjoerg 82720253Sjoergstatic char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ."; 82820253Sjoerg 82920253Sjoergchar * 83020253Sjoergpw_pwcrypt(char *password) 83120253Sjoerg{ 83220253Sjoerg int i; 83320253Sjoerg char salt[12]; 83420253Sjoerg 83520253Sjoerg static char buf[256]; 83620253Sjoerg 83720253Sjoerg /* 83820253Sjoerg * Calculate a salt value 83920253Sjoerg */ 84024214Sache if (!randinit) { 84124214Sache randinit = 1; 84224214Sache#ifdef __FreeBSD__ 84324214Sache if (srandomdev() < 0) 84424214Sache#endif 84524214Sache srandom((unsigned long) (time(NULL) ^ getpid())); 84624214Sache } 84720253Sjoerg for (i = 0; i < 8; i++) 84820253Sjoerg salt[i] = chars[random() % 63]; 84920253Sjoerg salt[i] = '\0'; 85020253Sjoerg 85120253Sjoerg return strcpy(buf, crypt(password, salt)); 85220253Sjoerg} 85320253Sjoerg 85420590Sdavidn#if defined(USE_MD5RAND) 85520555Sdavidnu_char * 85620590Sdavidnpw_getrand(u_char *buf, int len) /* cryptographically secure rng */ 85720555Sdavidn{ 85820590Sdavidn int i; 85920590Sdavidn for (i=0;i<len;i+=16) { 86020590Sdavidn u_char ubuf[16]; 86120590Sdavidn 86220590Sdavidn MD5_CTX md5_ctx; 86320590Sdavidn struct timeval tv, tvo; 86420590Sdavidn struct rusage ru; 86520590Sdavidn int n=0; 86620590Sdavidn int t; 86720590Sdavidn 86820590Sdavidn MD5Init (&md5_ctx); 86920590Sdavidn t=getpid(); 87020590Sdavidn MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 87120590Sdavidn t=getppid(); 87220590Sdavidn MD5Update (&md5_ctx, (u_char*)&t, sizeof t); 87320590Sdavidn gettimeofday (&tvo, NULL); 87420590Sdavidn do { 87520590Sdavidn getrusage (RUSAGE_SELF, &ru); 87620590Sdavidn MD5Update (&md5_ctx, (u_char*)&ru, sizeof ru); 87720590Sdavidn gettimeofday (&tv, NULL); 87820590Sdavidn MD5Update (&md5_ctx, (u_char*)&tv, sizeof tv); 87920590Sdavidn } while (n++<20 || tv.tv_usec-tvo.tv_usec<100*1000); 88020590Sdavidn MD5Final (ubuf, &md5_ctx); 88120590Sdavidn memcpy(buf+i, ubuf, MIN(16, len-n)); 88220590Sdavidn } 88320590Sdavidn return buf; 88420555Sdavidn} 88520253Sjoerg 88620590Sdavidn#else /* Portable version */ 88720590Sdavidn 88820590Sdavidnstatic u_char * 88920590Sdavidnpw_getrand(u_char *buf, int len) 89020590Sdavidn{ 89120590Sdavidn int i; 89220590Sdavidn 89320590Sdavidn for (i = 0; i < len; i++) { 89424214Sache unsigned long val = random(); 89520590Sdavidn /* Use all bits in the random value */ 89620590Sdavidn buf[i]=(u_char)((val >> 24) ^ (val >> 16) ^ (val >> 8) ^ val); 89720590Sdavidn } 89820590Sdavidn return buf; 89920590Sdavidn} 90020590Sdavidn 90120590Sdavidn#endif 90220590Sdavidn 90320253Sjoergstatic char * 90420253Sjoergpw_password(struct userconf * cnf, struct cargs * args, char const * user) 90520253Sjoerg{ 90620253Sjoerg int i, l; 90720253Sjoerg char pwbuf[32]; 90820555Sdavidn u_char rndbuf[sizeof pwbuf]; 90920253Sjoerg 91020253Sjoerg switch (cnf->default_password) { 91120253Sjoerg case -1: /* Random password */ 91224214Sache if (!randinit) { 91324214Sache randinit = 1; 91424214Sache#ifdef __FreeBSD__ 91524214Sache if (srandomdev() < 0) 91624214Sache#endif 91724214Sache srandom((unsigned long) (time(NULL) ^ getpid())); 91824214Sache } 91920253Sjoerg l = (random() % 8 + 8); /* 8 - 16 chars */ 92020555Sdavidn pw_getrand(rndbuf, l); 92120253Sjoerg for (i = 0; i < l; i++) 92220555Sdavidn pwbuf[i] = chars[rndbuf[i] % sizeof(chars)]; 92320253Sjoerg pwbuf[i] = '\0'; 92420253Sjoerg 92520253Sjoerg /* 92620253Sjoerg * We give this information back to the user 92720253Sjoerg */ 92820267Sjoerg if (getarg(args, 'h') == NULL && getarg(args, 'N') == NULL) { 92920712Sdavidn if (isatty(1)) 93020712Sdavidn printf("Password for '%s' is: ", user); 93120253Sjoerg printf("%s\n", pwbuf); 93220253Sjoerg fflush(stdout); 93320253Sjoerg } 93420253Sjoerg break; 93520253Sjoerg 93620253Sjoerg case -2: /* No password at all! */ 93720253Sjoerg return ""; 93820253Sjoerg 93920253Sjoerg case 0: /* No login - default */ 94020253Sjoerg default: 94120253Sjoerg return "*"; 94220253Sjoerg 94320253Sjoerg case 1: /* user's name */ 94420253Sjoerg strncpy(pwbuf, user, sizeof pwbuf); 94520253Sjoerg pwbuf[sizeof pwbuf - 1] = '\0'; 94620253Sjoerg break; 94720253Sjoerg } 94820253Sjoerg return pw_pwcrypt(pwbuf); 94920253Sjoerg} 95020253Sjoerg 95120253Sjoerg 95220253Sjoergstatic int 95320253Sjoergprint_user(struct passwd * pwd, int pretty) 95420253Sjoerg{ 95520253Sjoerg if (!pretty) { 95620253Sjoerg char buf[_UC_MAXLINE]; 95720253Sjoerg 95820253Sjoerg fmtpwent(buf, pwd); 95920253Sjoerg fputs(buf, stdout); 96020253Sjoerg } else { 96120267Sjoerg int j; 96220253Sjoerg char *p; 96320253Sjoerg struct group *grp = getgrgid(pwd->pw_gid); 96420253Sjoerg char uname[60] = "User &", office[60] = "[None]", 96520253Sjoerg wphone[60] = "[None]", hphone[60] = "[None]"; 96620590Sdavidn char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 96720590Sdavidn struct tm * tptr; 96820253Sjoerg 96920253Sjoerg if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 97020253Sjoerg strncpy(uname, p, sizeof uname); 97120253Sjoerg uname[sizeof uname - 1] = '\0'; 97220253Sjoerg if ((p = strtok(NULL, ",")) != NULL) { 97320253Sjoerg strncpy(office, p, sizeof office); 97420253Sjoerg office[sizeof office - 1] = '\0'; 97520253Sjoerg if ((p = strtok(NULL, ",")) != NULL) { 97620253Sjoerg strncpy(wphone, p, sizeof wphone); 97720253Sjoerg wphone[sizeof wphone - 1] = '\0'; 97820253Sjoerg if ((p = strtok(NULL, "")) != NULL) { 97920253Sjoerg strncpy(hphone, p, sizeof hphone); 98020253Sjoerg hphone[sizeof hphone - 1] = '\0'; 98120253Sjoerg } 98220253Sjoerg } 98320253Sjoerg } 98420253Sjoerg } 98520253Sjoerg /* 98620253Sjoerg * Handle '&' in gecos field 98720253Sjoerg */ 98820253Sjoerg if ((p = strchr(uname, '&')) != NULL) { 98920253Sjoerg int l = strlen(pwd->pw_name); 99020253Sjoerg int m = strlen(p); 99120253Sjoerg 99220253Sjoerg memmove(p + l, p + 1, m); 99320253Sjoerg memmove(p, pwd->pw_name, l); 99420253Sjoerg *p = (char) toupper(*p); 99520253Sjoerg } 99620590Sdavidn if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 99720590Sdavidn strftime(acexpire, sizeof acexpire, "%c", tptr); 99820590Sdavidn if (pwd->pw_change > (time_t)9 && (tptr = localtime(&pwd->pw_change)) != NULL) 99920590Sdavidn strftime(pwexpire, sizeof pwexpire, "%c", tptr); 100022394Sdavidn printf("Login Name: %-15s #%-12ld Group: %-15s #%ld\n" 100120747Sdavidn " Full Name: %s\n" 100220747Sdavidn " Home: %-26.26s Class: %s\n" 100320747Sdavidn " Shell: %-26.26s Office: %s\n" 100420747Sdavidn "Work Phone: %-26.26s Home Phone: %s\n" 100520747Sdavidn "Acc Expire: %-26.26s Pwd Expire: %s\n", 100620253Sjoerg pwd->pw_name, (long) pwd->pw_uid, 100720253Sjoerg grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid, 100820253Sjoerg uname, pwd->pw_dir, pwd->pw_class, 100920590Sdavidn pwd->pw_shell, office, wphone, hphone, 101020590Sdavidn acexpire, pwexpire); 101120267Sjoerg setgrent(); 101220267Sjoerg j = 0; 101320267Sjoerg while ((grp=getgrent()) != NULL) 101420267Sjoerg { 101520267Sjoerg int i = 0; 101620747Sdavidn while (grp->gr_mem[i] != NULL) 101720267Sjoerg { 101820267Sjoerg if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 101920267Sjoerg { 102020747Sdavidn printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 102120267Sjoerg break; 102220267Sjoerg } 102320267Sjoerg ++i; 102420267Sjoerg } 102520267Sjoerg } 102620267Sjoerg endgrent(); 102720267Sjoerg printf("%s\n", j ? "\n" : ""); 102820253Sjoerg } 102920267Sjoerg return EXIT_SUCCESS; 103020253Sjoerg} 103120253Sjoerg 103220679Sdavidnchar * 103320679Sdavidnpw_checkname(u_char *name, int gecos) 103420253Sjoerg{ 103520253Sjoerg int l = 0; 103621052Sdavidn char const *notch = gecos ? ":!@" : " ,\t:+&#%$^()!@~*?<>=|\\/\""; 103720253Sjoerg 103820253Sjoerg while (name[l]) { 103921052Sdavidn if (strchr(notch, name[l]) != NULL || name[l] < ' ' || name[l] == 127 || 104021052Sdavidn (!gecos && l==0 && name[l] == '-') || /* leading '-' */ 104121052Sdavidn (!gecos && name[l] & 0x80)) /* 8-bit */ 104221052Sdavidn cmderr(EX_DATAERR, (name[l] >= ' ' && name[l] < 127) 104320325Sjoerg ? "invalid character `%c' in field\n" 104421052Sdavidn : "invalid character 0x%02x in field\n", 104520325Sjoerg name[l]); 104620253Sjoerg ++l; 104720253Sjoerg } 104822394Sdavidn if (!gecos && l > LOGNAMESIZE) 104920267Sjoerg cmderr(EX_DATAERR, "name too long `%s'\n", name); 105020679Sdavidn return (char *)name; 105120253Sjoerg} 105220253Sjoerg 105320253Sjoerg 105420253Sjoergstatic void 105520253Sjoergrmat(uid_t uid) 105620253Sjoerg{ 105720253Sjoerg DIR *d = opendir("/var/at/jobs"); 105820253Sjoerg 105920253Sjoerg if (d != NULL) { 106020253Sjoerg struct dirent *e; 106120253Sjoerg 106220253Sjoerg while ((e = readdir(d)) != NULL) { 106320253Sjoerg struct stat st; 106420253Sjoerg 106520253Sjoerg if (strncmp(e->d_name, ".lock", 5) != 0 && 106620253Sjoerg stat(e->d_name, &st) == 0 && 106720253Sjoerg !S_ISDIR(st.st_mode) && 106820253Sjoerg st.st_uid == uid) { 106920253Sjoerg char tmp[MAXPATHLEN]; 107020253Sjoerg 107120253Sjoerg sprintf(tmp, "/usr/bin/atrm %s", e->d_name); 107220253Sjoerg system(tmp); 107320253Sjoerg } 107420253Sjoerg } 107520253Sjoerg closedir(d); 107620253Sjoerg } 107720253Sjoerg} 107820747Sdavidn 107920747Sdavidnstatic void 108020747Sdavidnrmskey(char const * name) 108120747Sdavidn{ 108220747Sdavidn static const char etcskey[] = "/etc/skeykeys"; 108321052Sdavidn FILE *fp = fopen(etcskey, "r+"); 108420747Sdavidn 108521052Sdavidn if (fp != NULL) { 108621052Sdavidn char tmp[1024]; 108721052Sdavidn off_t atofs = 0; 108821052Sdavidn int length = strlen(name); 108920747Sdavidn 109021052Sdavidn while (fgets(tmp, sizeof tmp, fp) != NULL) { 109121052Sdavidn if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') { 109221052Sdavidn if (fseek(fp, atofs, SEEK_SET) == 0) { 109321052Sdavidn fwrite("#", 1, 1, fp); /* Comment username out */ 109421052Sdavidn } 109521052Sdavidn break; 109620747Sdavidn } 109721052Sdavidn atofs = ftell(fp); 109820747Sdavidn } 109921052Sdavidn /* 110021052Sdavidn * If we got an error of any sort, don't update! 110121052Sdavidn */ 110221052Sdavidn fclose(fp); 110320747Sdavidn } 110420747Sdavidn} 110520747Sdavidn 1106