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