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