pw_user.c revision 285403
1/*- 2 * Copyright (C) 1996 3 * David L. Nugent. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28#ifndef lint 29static const char rcsid[] = 30 "$FreeBSD: head/usr.sbin/pw/pw_user.c 285403 2015-07-11 19:14:09Z bapt $"; 31#endif /* not lint */ 32 33#include <ctype.h> 34#include <err.h> 35#include <fcntl.h> 36#include <sys/param.h> 37#include <dirent.h> 38#include <paths.h> 39#include <termios.h> 40#include <sys/types.h> 41#include <sys/time.h> 42#include <sys/resource.h> 43#include <login_cap.h> 44#include <pwd.h> 45#include <grp.h> 46#include <libutil.h> 47#include "pw.h" 48#include "bitmap.h" 49 50#define LOGNAMESIZE (MAXLOGNAME-1) 51 52static char locked_str[] = "*LOCKED*"; 53 54static int pw_userdel(char *name, long id); 55static int print_user(struct passwd * pwd); 56static uid_t pw_uidpolicy(struct userconf * cnf, long id); 57static uid_t pw_gidpolicy(struct cargs * args, char *nam, gid_t prefer); 58static time_t pw_pwdpolicy(struct userconf * cnf, struct cargs * args); 59static time_t pw_exppolicy(struct userconf * cnf, struct cargs * args); 60static char *pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user); 61static char *pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell); 62static char *pw_password(struct userconf * cnf, struct cargs * args, char const * user); 63static char *shell_path(char const * path, char *shells[], char *sh); 64static void rmat(uid_t uid); 65static void rmopie(char const * name); 66 67static void 68create_and_populate_homedir(struct passwd *pwd) 69{ 70 char *homedir, *dotdir; 71 struct userconf *cnf = conf.userconf; 72 73 homedir = dotdir = NULL; 74 75 if (conf.rootdir[0] != '\0') { 76 asprintf(&homedir, "%s/%s", conf.rootdir, pwd->pw_dir); 77 if (homedir == NULL) 78 errx(EX_OSERR, "out of memory"); 79 asprintf(&dotdir, "%s/%s", conf.rootdir, cnf->dotdir); 80 } 81 82 copymkdir(homedir ? homedir : pwd->pw_dir, dotdir ? dotdir: cnf->dotdir, 83 cnf->homemode, pwd->pw_uid, pwd->pw_gid); 84 pw_log(cnf, M_ADD, W_USER, "%s(%u) home %s made", pwd->pw_name, 85 pwd->pw_uid, pwd->pw_dir); 86} 87 88static int 89set_passwd(struct passwd *pwd, bool update) 90{ 91 int b, istty; 92 struct termios t, n; 93 login_cap_t *lc; 94 char line[_PASSWORD_LEN+1]; 95 char *p; 96 97 if (conf.fd == '-') { 98 if (!pwd->pw_passwd || *pwd->pw_passwd != '*') { 99 pwd->pw_passwd = "*"; /* No access */ 100 return (1); 101 } 102 return (0); 103 } 104 105 if ((istty = isatty(conf.fd))) { 106 if (tcgetattr(conf.fd, &t) == -1) 107 istty = 0; 108 else { 109 n = t; 110 n.c_lflag &= ~(ECHO); 111 tcsetattr(conf.fd, TCSANOW, &n); 112 printf("%s%spassword for user %s:", 113 update ? "new " : "", 114 conf.precrypted ? "encrypted " : "", 115 pwd->pw_name); 116 fflush(stdout); 117 } 118 } 119 b = read(conf.fd, line, sizeof(line) - 1); 120 if (istty) { /* Restore state */ 121 tcsetattr(conf.fd, TCSANOW, &t); 122 fputc('\n', stdout); 123 fflush(stdout); 124 } 125 126 if (b < 0) 127 err(EX_IOERR, "-%c file descriptor", 128 conf.precrypted ? 'H' : 'h'); 129 line[b] = '\0'; 130 if ((p = strpbrk(line, "\r\n")) != NULL) 131 *p = '\0'; 132 if (!*line) 133 errx(EX_DATAERR, "empty password read on file descriptor %d", 134 conf.fd); 135 if (conf.precrypted) { 136 if (strchr(line, ':') != NULL) 137 errx(EX_DATAERR, "bad encrypted password"); 138 pwd->pw_passwd = line; 139 } else { 140 lc = login_getpwclass(pwd); 141 if (lc == NULL || 142 login_setcryptfmt(lc, "sha512", NULL) == NULL) 143 warn("setting crypt(3) format"); 144 login_close(lc); 145 pwd->pw_passwd = pw_pwcrypt(line); 146 } 147 return (1); 148} 149 150int 151pw_usernext(struct userconf *cnf, bool quiet) 152{ 153 uid_t next = pw_uidpolicy(cnf, -1); 154 155 if (quiet) 156 return (next); 157 158 printf("%u:", next); 159 pw_groupnext(cnf, quiet); 160 161 return (EXIT_SUCCESS); 162} 163 164static int 165pw_usershow(char *name, long id, struct passwd *fakeuser) 166{ 167 struct passwd *pwd = NULL; 168 169 if (id < 0 && name == NULL && !conf.all) 170 errx(EX_DATAERR, "username or id or '-a' required"); 171 172 if (conf.all) { 173 SETPWENT(); 174 while ((pwd = GETPWENT()) != NULL) 175 print_user(pwd); 176 ENDPWENT(); 177 return (EXIT_SUCCESS); 178 } 179 180 pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 181 if (pwd == NULL) { 182 if (conf.force) { 183 pwd = fakeuser; 184 } else { 185 if (name == NULL) 186 errx(EX_NOUSER, "no such uid `%ld'", id); 187 errx(EX_NOUSER, "no such user `%s'", name); 188 } 189 } 190 191 return (print_user(pwd)); 192} 193 194/*- 195 * -C config configuration file 196 * -q quiet operation 197 * -n name login name 198 * -u uid user id 199 * -c comment user name/comment 200 * -d directory home directory 201 * -e date account expiry date 202 * -p date password expiry date 203 * -g grp primary group 204 * -G grp1,grp2 additional groups 205 * -m [ -k dir ] create and set up home 206 * -s shell name of login shell 207 * -o duplicate uid ok 208 * -L class user class 209 * -l name new login name 210 * -h fd password filehandle 211 * -H fd encrypted password filehandle 212 * -F force print or add 213 * Setting defaults: 214 * -D set user defaults 215 * -b dir default home root dir 216 * -e period default expiry period 217 * -p period default password change period 218 * -g group default group 219 * -G grp1,grp2.. default additional groups 220 * -L class default login class 221 * -k dir default home skeleton 222 * -s shell default shell 223 * -w method default password method 224 */ 225 226int 227pw_user(int mode, char *name, long id, struct cargs * args) 228{ 229 int rc, edited = 0; 230 char *p = NULL; 231 char *passtmp; 232 struct carg *arg; 233 struct passwd *pwd = NULL; 234 struct group *grp; 235 struct stat st; 236 struct userconf *cnf; 237 char line[_PASSWORD_LEN+1]; 238 char path[MAXPATHLEN]; 239 FILE *fp; 240 char *dmode_c; 241 void *set = NULL; 242 243 static struct passwd fakeuser = 244 { 245 "nouser", 246 "*", 247 -1, 248 -1, 249 0, 250 "", 251 "User &", 252 "/nonexistent", 253 "/bin/sh", 254 0 255#if defined(__FreeBSD__) 256 ,0 257#endif 258 }; 259 260 cnf = conf.userconf; 261 262 if (mode == M_NEXT) 263 return (pw_usernext(cnf, conf.quiet)); 264 265 if (mode == M_PRINT) 266 return (pw_usershow(name, id, &fakeuser)); 267 268 if (mode == M_DELETE) 269 return (pw_userdel(name, id)); 270 271 /* 272 * We can do all of the common legwork here 273 */ 274 275 if ((arg = getarg(args, 'b')) != NULL) { 276 cnf->home = arg->val; 277 } 278 279 if ((arg = getarg(args, 'M')) != NULL) { 280 dmode_c = arg->val; 281 if ((set = setmode(dmode_c)) == NULL) 282 errx(EX_DATAERR, "invalid directory creation mode '%s'", 283 dmode_c); 284 cnf->homemode = getmode(set, _DEF_DIRMODE); 285 free(set); 286 } 287 288 /* 289 * If we'll need to use it or we're updating it, 290 * then create the base home directory if necessary 291 */ 292 if (arg != NULL || getarg(args, 'm') != NULL) { 293 int l = strlen(cnf->home); 294 295 if (l > 1 && cnf->home[l-1] == '/') /* Shave off any trailing path delimiter */ 296 cnf->home[--l] = '\0'; 297 298 if (l < 2 || *cnf->home != '/') /* Check for absolute path name */ 299 errx(EX_DATAERR, "invalid base directory for home '%s'", cnf->home); 300 301 if (stat(cnf->home, &st) == -1) { 302 char dbuf[MAXPATHLEN]; 303 304 /* 305 * This is a kludge especially for Joerg :) 306 * If the home directory would be created in the root partition, then 307 * we really create it under /usr which is likely to have more space. 308 * But we create a symlink from cnf->home -> "/usr" -> cnf->home 309 */ 310 if (strchr(cnf->home+1, '/') == NULL) { 311 snprintf(dbuf, MAXPATHLEN, "/usr%s", cnf->home); 312 if (mkdir(dbuf, _DEF_DIRMODE) != -1 || errno == EEXIST) { 313 chown(dbuf, 0, 0); 314 /* 315 * Skip first "/" and create symlink: 316 * /home -> usr/home 317 */ 318 symlink(dbuf+1, cnf->home); 319 } 320 /* If this falls, fall back to old method */ 321 } 322 strlcpy(dbuf, cnf->home, sizeof(dbuf)); 323 p = dbuf; 324 if (stat(dbuf, &st) == -1) { 325 while ((p = strchr(p + 1, '/')) != NULL) { 326 *p = '\0'; 327 if (stat(dbuf, &st) == -1) { 328 if (mkdir(dbuf, _DEF_DIRMODE) == -1) 329 goto direrr; 330 chown(dbuf, 0, 0); 331 } else if (!S_ISDIR(st.st_mode)) 332 errx(EX_OSFILE, "'%s' (root home parent) is not a directory", dbuf); 333 *p = '/'; 334 } 335 } 336 if (stat(dbuf, &st) == -1) { 337 if (mkdir(dbuf, _DEF_DIRMODE) == -1) { 338 direrr: err(EX_OSFILE, "mkdir '%s'", dbuf); 339 } 340 chown(dbuf, 0, 0); 341 } 342 } else if (!S_ISDIR(st.st_mode)) 343 errx(EX_OSFILE, "root home `%s' is not a directory", cnf->home); 344 } 345 346 if ((arg = getarg(args, 'e')) != NULL) 347 cnf->expire_days = atoi(arg->val); 348 349 if ((arg = getarg(args, 'y')) != NULL) 350 cnf->nispasswd = arg->val; 351 352 if ((arg = getarg(args, 'p')) != NULL && arg->val) 353 cnf->password_days = atoi(arg->val); 354 355 if ((arg = getarg(args, 'g')) != NULL) { 356 if (!*(p = arg->val)) /* Handle empty group list specially */ 357 cnf->default_group = ""; 358 else { 359 if ((grp = GETGRNAM(p)) == NULL) { 360 if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL) 361 errx(EX_NOUSER, "group `%s' does not exist", p); 362 } 363 cnf->default_group = newstr(grp->gr_name); 364 } 365 } 366 if ((arg = getarg(args, 'L')) != NULL) 367 cnf->default_class = pw_checkname(arg->val, 0); 368 369 if ((arg = getarg(args, 'G')) != NULL && arg->val) { 370 int i = 0; 371 372 for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) { 373 if ((grp = GETGRNAM(p)) == NULL) { 374 if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL) 375 errx(EX_NOUSER, "group `%s' does not exist", p); 376 } 377 if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1) 378 cnf->groups[i++] = newstr(grp->gr_name); 379 } 380 while (i < cnf->numgroups) 381 cnf->groups[i++] = NULL; 382 } 383 384 if ((arg = getarg(args, 'k')) != NULL) { 385 if (stat(cnf->dotdir = arg->val, &st) == -1 || !S_ISDIR(st.st_mode)) 386 errx(EX_OSFILE, "skeleton `%s' is not a directory or does not exist", cnf->dotdir); 387 } 388 389 if ((arg = getarg(args, 's')) != NULL) 390 cnf->shell_default = arg->val; 391 392 if ((arg = getarg(args, 'w')) != NULL) 393 cnf->default_password = boolean_val(arg->val, cnf->default_password); 394 if (mode == M_ADD && getarg(args, 'D')) { 395 if (name != NULL) 396 errx(EX_DATAERR, "can't combine `-D' with `-n name'"); 397 if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 398 if ((cnf->min_uid = (uid_t) atoi(p)) == 0) 399 cnf->min_uid = 1000; 400 if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid) 401 cnf->max_uid = 32000; 402 } 403 if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 404 if ((cnf->min_gid = (gid_t) atoi(p)) == 0) 405 cnf->min_gid = 1000; 406 if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid) 407 cnf->max_gid = 32000; 408 } 409 410 if (write_userconfig(conf.config)) 411 return (EXIT_SUCCESS); 412 err(EX_IOERR, "config udpate"); 413 } 414 415 if (name != NULL) 416 pwd = GETPWNAM(pw_checkname(name, 0)); 417 418 if (id < 0 && name == NULL) 419 errx(EX_DATAERR, "user name or id required"); 420 421 /* 422 * Update require that the user exists 423 */ 424 if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) { 425 426 if (name == NULL && pwd == NULL) /* Try harder */ 427 pwd = GETPWUID(id); 428 429 if (pwd == NULL) { 430 if (name == NULL) 431 errx(EX_NOUSER, "no such uid `%ld'", id); 432 errx(EX_NOUSER, "no such user `%s'", name); 433 } 434 435 if (name == NULL) 436 name = pwd->pw_name; 437 438 /* 439 * The M_LOCK and M_UNLOCK functions simply add or remove 440 * a "*LOCKED*" prefix from in front of the password to 441 * prevent it decoding correctly, and therefore prevents 442 * access. Of course, this only prevents access via 443 * password authentication (not ssh, kerberos or any 444 * other method that does not use the UNIX password) but 445 * that is a known limitation. 446 */ 447 448 if (mode == M_LOCK) { 449 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) == 0) 450 errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name); 451 asprintf(&passtmp, "%s%s", locked_str, pwd->pw_passwd); 452 if (passtmp == NULL) /* disaster */ 453 errx(EX_UNAVAILABLE, "out of memory"); 454 pwd->pw_passwd = passtmp; 455 edited = 1; 456 } else if (mode == M_UNLOCK) { 457 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) != 0) 458 errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name); 459 pwd->pw_passwd += sizeof(locked_str)-1; 460 edited = 1; 461 } 462 463 /* 464 * The rest is edit code 465 */ 466 if (conf.newname != NULL) { 467 if (strcmp(pwd->pw_name, "root") == 0) 468 errx(EX_DATAERR, "can't rename `root' account"); 469 pwd->pw_name = pw_checkname(conf.newname, 0); 470 edited = 1; 471 } 472 473 if (id > 0 && isdigit((unsigned char)*arg->val)) { 474 pwd->pw_uid = (uid_t)id; 475 edited = 1; 476 if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 477 errx(EX_DATAERR, "can't change uid of `root' account"); 478 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 479 warnx("WARNING: account `%s' will have a uid of 0 (superuser access!)", pwd->pw_name); 480 } 481 482 if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) { /* Already checked this */ 483 gid_t newgid = (gid_t) GETGRNAM(cnf->default_group)->gr_gid; 484 if (newgid != pwd->pw_gid) { 485 edited = 1; 486 pwd->pw_gid = newgid; 487 } 488 } 489 490 if ((arg = getarg(args, 'p')) != NULL) { 491 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 492 if (pwd->pw_change != 0) { 493 pwd->pw_change = 0; 494 edited = 1; 495 } 496 } 497 else { 498 time_t now = time(NULL); 499 time_t expire = parse_date(now, arg->val); 500 501 if (pwd->pw_change != expire) { 502 pwd->pw_change = expire; 503 edited = 1; 504 } 505 } 506 } 507 508 if ((arg = getarg(args, 'e')) != NULL) { 509 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 510 if (pwd->pw_expire != 0) { 511 pwd->pw_expire = 0; 512 edited = 1; 513 } 514 } 515 else { 516 time_t now = time(NULL); 517 time_t expire = parse_date(now, arg->val); 518 519 if (pwd->pw_expire != expire) { 520 pwd->pw_expire = expire; 521 edited = 1; 522 } 523 } 524 } 525 526 if ((arg = getarg(args, 's')) != NULL) { 527 char *shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 528 if (shell == NULL) 529 shell = ""; 530 if (strcmp(shell, pwd->pw_shell) != 0) { 531 pwd->pw_shell = shell; 532 edited = 1; 533 } 534 } 535 536 if (getarg(args, 'L')) { 537 if (cnf->default_class == NULL) 538 cnf->default_class = ""; 539 if (strcmp(pwd->pw_class, cnf->default_class) != 0) { 540 pwd->pw_class = cnf->default_class; 541 edited = 1; 542 } 543 } 544 545 if ((arg = getarg(args, 'd')) != NULL) { 546 if (strcmp(pwd->pw_dir, arg->val)) 547 edited = 1; 548 if (stat(pwd->pw_dir = arg->val, &st) == -1) { 549 if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0) 550 warnx("WARNING: home `%s' does not exist", pwd->pw_dir); 551 } else if (!S_ISDIR(st.st_mode)) 552 warnx("WARNING: home `%s' is not a directory", pwd->pw_dir); 553 } 554 555 if ((arg = getarg(args, 'w')) != NULL && conf.fd == -1) { 556 login_cap_t *lc; 557 558 lc = login_getpwclass(pwd); 559 if (lc == NULL || 560 login_setcryptfmt(lc, "sha512", NULL) == NULL) 561 warn("setting crypt(3) format"); 562 login_close(lc); 563 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 564 edited = 1; 565 } 566 567 } else { 568 login_cap_t *lc; 569 570 /* 571 * Add code 572 */ 573 574 if (name == NULL) /* Required */ 575 errx(EX_DATAERR, "login name required"); 576 else if ((pwd = GETPWNAM(name)) != NULL) /* Exists */ 577 errx(EX_DATAERR, "login name `%s' already exists", name); 578 579 /* 580 * Now, set up defaults for a new user 581 */ 582 pwd = &fakeuser; 583 pwd->pw_name = name; 584 pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 585 pwd->pw_uid = pw_uidpolicy(cnf, id); 586 pwd->pw_gid = pw_gidpolicy(args, pwd->pw_name, (gid_t) pwd->pw_uid); 587 pwd->pw_change = pw_pwdpolicy(cnf, args); 588 pwd->pw_expire = pw_exppolicy(cnf, args); 589 pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 590 pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 591 lc = login_getpwclass(pwd); 592 if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 593 warn("setting crypt(3) format"); 594 login_close(lc); 595 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 596 edited = 1; 597 598 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 599 warnx("WARNING: new account `%s' has a uid of 0 (superuser access!)", pwd->pw_name); 600 } 601 602 /* 603 * Shared add/edit code 604 */ 605 if ((arg = getarg(args, 'c')) != NULL) { 606 char *gecos = pw_checkname(arg->val, 1); 607 if (strcmp(pwd->pw_gecos, gecos) != 0) { 608 pwd->pw_gecos = gecos; 609 edited = 1; 610 } 611 } 612 613 if (conf.fd != -1) 614 edited = set_passwd(pwd, mode == M_UPDATE); 615 616 /* 617 * Special case: -N only displays & exits 618 */ 619 if (conf.dryrun) 620 return print_user(pwd); 621 622 if (mode == M_ADD) { 623 edited = 1; /* Always */ 624 rc = addpwent(pwd); 625 if (rc == -1) 626 errx(EX_IOERR, "user '%s' already exists", 627 pwd->pw_name); 628 else if (rc != 0) 629 err(EX_IOERR, "passwd file update"); 630 if (cnf->nispasswd && *cnf->nispasswd=='/') { 631 rc = addnispwent(cnf->nispasswd, pwd); 632 if (rc == -1) 633 warnx("User '%s' already exists in NIS passwd", pwd->pw_name); 634 else 635 warn("NIS passwd update"); 636 /* NOTE: we treat NIS-only update errors as non-fatal */ 637 } 638 } else if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) { 639 if (edited) { /* Only updated this if required */ 640 rc = chgpwent(name, pwd); 641 if (rc == -1) 642 errx(EX_IOERR, "user '%s' does not exist (NIS?)", pwd->pw_name); 643 else if (rc != 0) 644 err(EX_IOERR, "passwd file update"); 645 if ( cnf->nispasswd && *cnf->nispasswd=='/') { 646 rc = chgnispwent(cnf->nispasswd, name, pwd); 647 if (rc == -1) 648 warn("User '%s' not found in NIS passwd", pwd->pw_name); 649 else 650 warn("NIS passwd update"); 651 /* NOTE: NIS-only update errors are not fatal */ 652 } 653 } 654 } 655 656 /* 657 * Ok, user is created or changed - now edit group file 658 */ 659 660 if (mode == M_ADD || getarg(args, 'G') != NULL) { 661 int i, j; 662 /* First remove the user from all group */ 663 SETGRENT(); 664 while ((grp = GETGRENT()) != NULL) { 665 char group[MAXLOGNAME]; 666 if (grp->gr_mem == NULL) 667 continue; 668 for (i = 0; grp->gr_mem[i] != NULL; i++) { 669 if (strcmp(grp->gr_mem[i] , pwd->pw_name) != 0) 670 continue; 671 for (j = i; grp->gr_mem[j] != NULL ; j++) 672 grp->gr_mem[j] = grp->gr_mem[j+1]; 673 strlcpy(group, grp->gr_name, MAXLOGNAME); 674 chggrent(group, grp); 675 } 676 } 677 ENDGRENT(); 678 679 /* now add to group where needed */ 680 for (i = 0; cnf->groups[i] != NULL; i++) { 681 grp = GETGRNAM(cnf->groups[i]); 682 grp = gr_add(grp, pwd->pw_name); 683 /* 684 * grp can only be NULL in 2 cases: 685 * - the new member is already a member 686 * - a problem with memory occurs 687 * in both cases we want to skip now. 688 */ 689 if (grp == NULL) 690 continue; 691 chggrent(cnf->groups[i], grp); 692 free(grp); 693 } 694 } 695 696 697 /* go get a current version of pwd */ 698 pwd = GETPWNAM(name); 699 if (pwd == NULL) { 700 /* This will fail when we rename, so special case that */ 701 if (mode == M_UPDATE && conf.newname != NULL) { 702 name = conf.newname; /* update new name */ 703 pwd = GETPWNAM(name); /* refetch renamed rec */ 704 } 705 } 706 if (pwd == NULL) /* can't go on without this */ 707 errx(EX_NOUSER, "user '%s' disappeared during update", name); 708 709 grp = GETGRGID(pwd->pw_gid); 710 pw_log(cnf, mode, W_USER, "%s(%u):%s(%u):%s:%s:%s", 711 pwd->pw_name, pwd->pw_uid, 712 grp ? grp->gr_name : "unknown", (grp ? grp->gr_gid : (uid_t)-1), 713 pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 714 715 /* 716 * If adding, let's touch and chown the user's mail file. This is not 717 * strictly necessary under BSD with a 0755 maildir but it also 718 * doesn't hurt anything to create the empty mailfile 719 */ 720 if (mode == M_ADD) { 721 if (PWALTDIR() != PWF_ALT) { 722 arg = getarg(args, 'R'); 723 snprintf(path, sizeof(path), "%s%s/%s", 724 arg ? arg->val : "", _PATH_MAILDIR, pwd->pw_name); 725 close(open(path, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 726 * mtime */ 727 chown(path, pwd->pw_uid, pwd->pw_gid); 728 } 729 } 730 731 /* 732 * Let's create and populate the user's home directory. Note 733 * that this also `works' for editing users if -m is used, but 734 * existing files will *not* be overwritten. 735 */ 736 if (PWALTDIR() != PWF_ALT && getarg(args, 'm') != NULL && pwd->pw_dir && 737 *pwd->pw_dir == '/' && pwd->pw_dir[1]) 738 create_and_populate_homedir(pwd); 739 740 /* 741 * Finally, send mail to the new user as well, if we are asked to 742 */ 743 if (mode == M_ADD && !PWALTDIR() && cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 744 FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 745 746 if (pfp == NULL) 747 warn("sendmail"); 748 else { 749 fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 750 while (fgets(line, sizeof(line), fp) != NULL) { 751 /* Do substitutions? */ 752 fputs(line, pfp); 753 } 754 pclose(pfp); 755 pw_log(cnf, mode, W_USER, "%s(%u) new user mail sent", 756 pwd->pw_name, pwd->pw_uid); 757 } 758 fclose(fp); 759 } 760 761 return EXIT_SUCCESS; 762} 763 764 765static uid_t 766pw_uidpolicy(struct userconf * cnf, long id) 767{ 768 struct passwd *pwd; 769 uid_t uid = (uid_t) - 1; 770 771 /* 772 * Check the given uid, if any 773 */ 774 if (id > 0) { 775 uid = (uid_t) id; 776 777 if ((pwd = GETPWUID(uid)) != NULL && conf.checkduplicate) 778 errx(EX_DATAERR, "uid `%u' has already been allocated", pwd->pw_uid); 779 } else { 780 struct bitmap bm; 781 782 /* 783 * We need to allocate the next available uid under one of 784 * two policies a) Grab the first unused uid b) Grab the 785 * highest possible unused uid 786 */ 787 if (cnf->min_uid >= cnf->max_uid) { /* Sanity 788 * claus^H^H^H^Hheck */ 789 cnf->min_uid = 1000; 790 cnf->max_uid = 32000; 791 } 792 bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 793 794 /* 795 * Now, let's fill the bitmap from the password file 796 */ 797 SETPWENT(); 798 while ((pwd = GETPWENT()) != NULL) 799 if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid) 800 bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 801 ENDPWENT(); 802 803 /* 804 * Then apply the policy, with fallback to reuse if necessary 805 */ 806 if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 807 uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 808 809 /* 810 * Another sanity check 811 */ 812 if (uid < cnf->min_uid || uid > cnf->max_uid) 813 errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used"); 814 bm_dealloc(&bm); 815 } 816 return uid; 817} 818 819 820static uid_t 821pw_gidpolicy(struct cargs * args, char *nam, gid_t prefer) 822{ 823 struct group *grp; 824 gid_t gid = (uid_t) - 1; 825 struct carg *a_gid = getarg(args, 'g'); 826 struct userconf *cnf = conf.userconf; 827 828 /* 829 * If no arg given, see if default can help out 830 */ 831 if (a_gid == NULL && cnf->default_group && *cnf->default_group) 832 a_gid = addarg(args, 'g', cnf->default_group); 833 834 /* 835 * Check the given gid, if any 836 */ 837 SETGRENT(); 838 if (a_gid != NULL) { 839 if ((grp = GETGRNAM(a_gid->val)) == NULL) { 840 gid = (gid_t) atol(a_gid->val); 841 if ((gid == 0 && !isdigit((unsigned char)*a_gid->val)) || (grp = GETGRGID(gid)) == NULL) 842 errx(EX_NOUSER, "group `%s' is not defined", a_gid->val); 843 } 844 gid = grp->gr_gid; 845 } else if ((grp = GETGRNAM(nam)) != NULL && 846 (grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) { 847 gid = grp->gr_gid; /* Already created? Use it anyway... */ 848 } else { 849 struct cargs grpargs; 850 char tmp[32]; 851 852 LIST_INIT(&grpargs); 853 854 /* 855 * We need to auto-create a group with the user's name. We 856 * can send all the appropriate output to our sister routine 857 * bit first see if we can create a group with gid==uid so we 858 * can keep the user and group ids in sync. We purposely do 859 * NOT check the gid range if we can force the sync. If the 860 * user's name dups an existing group, then the group add 861 * function will happily handle that case for us and exit. 862 */ 863 if (GETGRGID(prefer) == NULL) { 864 snprintf(tmp, sizeof(tmp), "%u", prefer); 865 addarg(&grpargs, 'g', tmp); 866 } 867 if (conf.dryrun) { 868 gid = pw_groupnext(cnf, true); 869 } else { 870 pw_group(M_ADD, nam, -1, &grpargs); 871 if ((grp = GETGRNAM(nam)) != NULL) 872 gid = grp->gr_gid; 873 } 874 a_gid = LIST_FIRST(&grpargs); 875 while (a_gid != NULL) { 876 struct carg *t = LIST_NEXT(a_gid, list); 877 LIST_REMOVE(a_gid, list); 878 a_gid = t; 879 } 880 } 881 ENDGRENT(); 882 return gid; 883} 884 885 886static time_t 887pw_pwdpolicy(struct userconf * cnf, struct cargs * args) 888{ 889 time_t result = 0; 890 time_t now = time(NULL); 891 struct carg *arg = getarg(args, 'p'); 892 893 if (arg != NULL) { 894 if ((result = parse_date(now, arg->val)) == now) 895 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 896 } else if (cnf->password_days > 0) 897 result = now + ((long) cnf->password_days * 86400L); 898 return result; 899} 900 901 902static time_t 903pw_exppolicy(struct userconf * cnf, struct cargs * args) 904{ 905 time_t result = 0; 906 time_t now = time(NULL); 907 struct carg *arg = getarg(args, 'e'); 908 909 if (arg != NULL) { 910 if ((result = parse_date(now, arg->val)) == now) 911 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 912 } else if (cnf->expire_days > 0) 913 result = now + ((long) cnf->expire_days * 86400L); 914 return result; 915} 916 917 918static char * 919pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 920{ 921 struct carg *arg = getarg(args, 'd'); 922 static char home[128]; 923 924 if (arg) 925 return (arg->val); 926 927 if (cnf->home == NULL || *cnf->home == '\0') 928 errx(EX_CONFIG, "no base home directory set"); 929 snprintf(home, sizeof(home), "%s/%s", cnf->home, user); 930 931 return (home); 932} 933 934static char * 935shell_path(char const * path, char *shells[], char *sh) 936{ 937 if (sh != NULL && (*sh == '/' || *sh == '\0')) 938 return sh; /* specified full path or forced none */ 939 else { 940 char *p; 941 char paths[_UC_MAXLINE]; 942 943 /* 944 * We need to search paths 945 */ 946 strlcpy(paths, path, sizeof(paths)); 947 for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 948 int i; 949 static char shellpath[256]; 950 951 if (sh != NULL) { 952 snprintf(shellpath, sizeof(shellpath), "%s/%s", p, sh); 953 if (access(shellpath, X_OK) == 0) 954 return shellpath; 955 } else 956 for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 957 snprintf(shellpath, sizeof(shellpath), "%s/%s", p, shells[i]); 958 if (access(shellpath, X_OK) == 0) 959 return shellpath; 960 } 961 } 962 if (sh == NULL) 963 errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh); 964 errx(EX_CONFIG, "no default shell available or defined"); 965 return NULL; 966 } 967} 968 969 970static char * 971pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 972{ 973 char *sh = newshell; 974 struct carg *arg = getarg(args, 's'); 975 976 if (newshell == NULL && arg != NULL) 977 sh = arg->val; 978 return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 979} 980 981#define SALTSIZE 32 982 983static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./"; 984 985char * 986pw_pwcrypt(char *password) 987{ 988 int i; 989 char salt[SALTSIZE + 1]; 990 char *cryptpw; 991 992 static char buf[256]; 993 994 /* 995 * Calculate a salt value 996 */ 997 for (i = 0; i < SALTSIZE; i++) 998 salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)]; 999 salt[SALTSIZE] = '\0'; 1000 1001 cryptpw = crypt(password, salt); 1002 if (cryptpw == NULL) 1003 errx(EX_CONFIG, "crypt(3) failure"); 1004 return strcpy(buf, cryptpw); 1005} 1006 1007 1008static char * 1009pw_password(struct userconf * cnf, struct cargs * args, char const * user) 1010{ 1011 int i, l; 1012 char pwbuf[32]; 1013 1014 switch (cnf->default_password) { 1015 case -1: /* Random password */ 1016 l = (arc4random() % 8 + 8); /* 8 - 16 chars */ 1017 for (i = 0; i < l; i++) 1018 pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)]; 1019 pwbuf[i] = '\0'; 1020 1021 /* 1022 * We give this information back to the user 1023 */ 1024 if (conf.fd == -1 && !conf.dryrun) { 1025 if (isatty(STDOUT_FILENO)) 1026 printf("Password for '%s' is: ", user); 1027 printf("%s\n", pwbuf); 1028 fflush(stdout); 1029 } 1030 break; 1031 1032 case -2: /* No password at all! */ 1033 return ""; 1034 1035 case 0: /* No login - default */ 1036 default: 1037 return "*"; 1038 1039 case 1: /* user's name */ 1040 strlcpy(pwbuf, user, sizeof(pwbuf)); 1041 break; 1042 } 1043 return pw_pwcrypt(pwbuf); 1044} 1045 1046static int 1047pw_userdel(char *name, long id) 1048{ 1049 struct passwd *pwd = NULL; 1050 char file[MAXPATHLEN]; 1051 char home[MAXPATHLEN]; 1052 uid_t uid; 1053 struct group *gr, *grp; 1054 char grname[LOGNAMESIZE]; 1055 int rc; 1056 struct stat st; 1057 1058 if (id < 0 && name == NULL) 1059 errx(EX_DATAERR, "username or id required"); 1060 1061 pwd = (name != NULL) ? GETPWNAM(pw_checkname(name, 0)) : GETPWUID(id); 1062 if (pwd == NULL) { 1063 if (name == NULL) 1064 errx(EX_NOUSER, "no such uid `%ld'", id); 1065 errx(EX_NOUSER, "no such user `%s'", name); 1066 } 1067 uid = pwd->pw_uid; 1068 if (name == NULL) 1069 name = pwd->pw_name; 1070 1071 if (strcmp(pwd->pw_name, "root") == 0) 1072 errx(EX_DATAERR, "cannot remove user 'root'"); 1073 1074 if (!PWALTDIR()) { 1075 /* 1076 * Remove opie record from /etc/opiekeys 1077 */ 1078 1079 rmopie(pwd->pw_name); 1080 1081 /* 1082 * Remove crontabs 1083 */ 1084 snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name); 1085 if (access(file, F_OK) == 0) { 1086 snprintf(file, sizeof(file), "crontab -u %s -r", pwd->pw_name); 1087 system(file); 1088 } 1089 } 1090 /* 1091 * Save these for later, since contents of pwd may be 1092 * invalidated by deletion 1093 */ 1094 snprintf(file, sizeof(file), "%s/%s", _PATH_MAILDIR, pwd->pw_name); 1095 strlcpy(home, pwd->pw_dir, sizeof(home)); 1096 gr = GETGRGID(pwd->pw_gid); 1097 if (gr != NULL) 1098 strlcpy(grname, gr->gr_name, LOGNAMESIZE); 1099 else 1100 grname[0] = '\0'; 1101 1102 rc = delpwent(pwd); 1103 if (rc == -1) 1104 err(EX_IOERR, "user '%s' does not exist", pwd->pw_name); 1105 else if (rc != 0) 1106 err(EX_IOERR, "passwd update"); 1107 1108 if (conf.userconf->nispasswd && *conf.userconf->nispasswd=='/') { 1109 rc = delnispwent(conf.userconf->nispasswd, name); 1110 if (rc == -1) 1111 warnx("WARNING: user '%s' does not exist in NIS passwd", 1112 pwd->pw_name); 1113 else if (rc != 0) 1114 warn("WARNING: NIS passwd update"); 1115 /* non-fatal */ 1116 } 1117 1118 grp = GETGRNAM(name); 1119 if (grp != NULL && 1120 (grp->gr_mem == NULL || *grp->gr_mem == NULL) && 1121 strcmp(name, grname) == 0) 1122 delgrent(GETGRNAM(name)); 1123 SETGRENT(); 1124 while ((grp = GETGRENT()) != NULL) { 1125 int i, j; 1126 char group[MAXLOGNAME]; 1127 if (grp->gr_mem == NULL) 1128 continue; 1129 1130 for (i = 0; grp->gr_mem[i] != NULL; i++) { 1131 if (strcmp(grp->gr_mem[i], name) != 0) 1132 continue; 1133 1134 for (j = i; grp->gr_mem[j] != NULL; j++) 1135 grp->gr_mem[j] = grp->gr_mem[j+1]; 1136 strlcpy(group, grp->gr_name, MAXLOGNAME); 1137 chggrent(group, grp); 1138 } 1139 } 1140 ENDGRENT(); 1141 1142 pw_log(conf.userconf, M_DELETE, W_USER, "%s(%u) account removed", name, 1143 uid); 1144 1145 if (!PWALTDIR()) { 1146 /* 1147 * Remove mail file 1148 */ 1149 remove(file); 1150 1151 /* 1152 * Remove at jobs 1153 */ 1154 if (getpwuid(uid) == NULL) 1155 rmat(uid); 1156 1157 /* 1158 * Remove home directory and contents 1159 */ 1160 if (conf.deletehome && *home == '/' && getpwuid(uid) == NULL && 1161 stat(home, &st) != -1) { 1162 rm_r(home, uid); 1163 pw_log(conf.userconf, M_DELETE, W_USER, "%s(%u) home '%s' %sremoved", 1164 name, uid, home, 1165 stat(home, &st) == -1 ? "" : "not completely "); 1166 } 1167 } 1168 1169 return (EXIT_SUCCESS); 1170} 1171 1172static int 1173print_user(struct passwd * pwd) 1174{ 1175 if (!conf.pretty) { 1176 char *buf; 1177 1178 buf = conf.v7 ? pw_make_v7(pwd) : pw_make(pwd); 1179 printf("%s\n", buf); 1180 free(buf); 1181 } else { 1182 int j; 1183 char *p; 1184 struct group *grp = GETGRGID(pwd->pw_gid); 1185 char uname[60] = "User &", office[60] = "[None]", 1186 wphone[60] = "[None]", hphone[60] = "[None]"; 1187 char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 1188 struct tm * tptr; 1189 1190 if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 1191 strlcpy(uname, p, sizeof(uname)); 1192 if ((p = strtok(NULL, ",")) != NULL) { 1193 strlcpy(office, p, sizeof(office)); 1194 if ((p = strtok(NULL, ",")) != NULL) { 1195 strlcpy(wphone, p, sizeof(wphone)); 1196 if ((p = strtok(NULL, "")) != NULL) { 1197 strlcpy(hphone, p, 1198 sizeof(hphone)); 1199 } 1200 } 1201 } 1202 } 1203 /* 1204 * Handle '&' in gecos field 1205 */ 1206 if ((p = strchr(uname, '&')) != NULL) { 1207 int l = strlen(pwd->pw_name); 1208 int m = strlen(p); 1209 1210 memmove(p + l, p + 1, m); 1211 memmove(p, pwd->pw_name, l); 1212 *p = (char) toupper((unsigned char)*p); 1213 } 1214 if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 1215 strftime(acexpire, sizeof acexpire, "%c", tptr); 1216 if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL) 1217 strftime(pwexpire, sizeof pwexpire, "%c", tptr); 1218 printf("Login Name: %-15s #%-12u Group: %-15s #%u\n" 1219 " Full Name: %s\n" 1220 " Home: %-26.26s Class: %s\n" 1221 " Shell: %-26.26s Office: %s\n" 1222 "Work Phone: %-26.26s Home Phone: %s\n" 1223 "Acc Expire: %-26.26s Pwd Expire: %s\n", 1224 pwd->pw_name, pwd->pw_uid, 1225 grp ? grp->gr_name : "(invalid)", pwd->pw_gid, 1226 uname, pwd->pw_dir, pwd->pw_class, 1227 pwd->pw_shell, office, wphone, hphone, 1228 acexpire, pwexpire); 1229 SETGRENT(); 1230 j = 0; 1231 while ((grp=GETGRENT()) != NULL) 1232 { 1233 int i = 0; 1234 if (grp->gr_mem != NULL) { 1235 while (grp->gr_mem[i] != NULL) 1236 { 1237 if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 1238 { 1239 printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 1240 break; 1241 } 1242 ++i; 1243 } 1244 } 1245 } 1246 ENDGRENT(); 1247 printf("%s", j ? "\n" : ""); 1248 } 1249 return EXIT_SUCCESS; 1250} 1251 1252char * 1253pw_checkname(char *name, int gecos) 1254{ 1255 char showch[8]; 1256 const char *badchars, *ch, *showtype; 1257 int reject; 1258 1259 ch = name; 1260 reject = 0; 1261 if (gecos) { 1262 /* See if the name is valid as a gecos (comment) field. */ 1263 badchars = ":!@"; 1264 showtype = "gecos field"; 1265 } else { 1266 /* See if the name is valid as a userid or group. */ 1267 badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\""; 1268 showtype = "userid/group name"; 1269 /* Userids and groups can not have a leading '-'. */ 1270 if (*ch == '-') 1271 reject = 1; 1272 } 1273 if (!reject) { 1274 while (*ch) { 1275 if (strchr(badchars, *ch) != NULL || *ch < ' ' || 1276 *ch == 127) { 1277 reject = 1; 1278 break; 1279 } 1280 /* 8-bit characters are only allowed in GECOS fields */ 1281 if (!gecos && (*ch & 0x80)) { 1282 reject = 1; 1283 break; 1284 } 1285 ch++; 1286 } 1287 } 1288 /* 1289 * A `$' is allowed as the final character for userids and groups, 1290 * mainly for the benefit of samba. 1291 */ 1292 if (reject && !gecos) { 1293 if (*ch == '$' && *(ch + 1) == '\0') { 1294 reject = 0; 1295 ch++; 1296 } 1297 } 1298 if (reject) { 1299 snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127) 1300 ? "`%c'" : "0x%02x", *ch); 1301 errx(EX_DATAERR, "invalid character %s at position %td in %s", 1302 showch, (ch - name), showtype); 1303 } 1304 if (!gecos && (ch - name) > LOGNAMESIZE) 1305 errx(EX_DATAERR, "name too long `%s' (max is %d)", name, 1306 LOGNAMESIZE); 1307 1308 return (name); 1309} 1310 1311 1312static void 1313rmat(uid_t uid) 1314{ 1315 DIR *d = opendir("/var/at/jobs"); 1316 1317 if (d != NULL) { 1318 struct dirent *e; 1319 1320 while ((e = readdir(d)) != NULL) { 1321 struct stat st; 1322 1323 if (strncmp(e->d_name, ".lock", 5) != 0 && 1324 stat(e->d_name, &st) == 0 && 1325 !S_ISDIR(st.st_mode) && 1326 st.st_uid == uid) { 1327 char tmp[MAXPATHLEN]; 1328 1329 snprintf(tmp, sizeof(tmp), "/usr/bin/atrm %s", e->d_name); 1330 system(tmp); 1331 } 1332 } 1333 closedir(d); 1334 } 1335} 1336 1337static void 1338rmopie(char const * name) 1339{ 1340 static const char etcopie[] = "/etc/opiekeys"; 1341 FILE *fp = fopen(etcopie, "r+"); 1342 1343 if (fp != NULL) { 1344 char tmp[1024]; 1345 off_t atofs = 0; 1346 int length = strlen(name); 1347 1348 while (fgets(tmp, sizeof tmp, fp) != NULL) { 1349 if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') { 1350 if (fseek(fp, atofs, SEEK_SET) == 0) { 1351 fwrite("#", 1, 1, fp); /* Comment username out */ 1352 } 1353 break; 1354 } 1355 atofs = ftell(fp); 1356 } 1357 /* 1358 * If we got an error of any sort, don't update! 1359 */ 1360 fclose(fp); 1361 } 1362} 1363 1364