pw_user.c revision 273779
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 273779 2014-10-28 14:19:17Z 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 <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 53static char locked_str[] = "*LOCKED*"; 54 55static int print_user(struct passwd * pwd, int pretty, int v7); 56static uid_t pw_uidpolicy(struct userconf * cnf, struct cargs * args); 57static uid_t pw_gidpolicy(struct userconf * cnf, 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 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 99int 100pw_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 } 325 326 /* 327 * Update, delete & print require that the user exists 328 */ 329 if (mode == M_UPDATE || mode == M_DELETE || 330 mode == M_PRINT || mode == M_LOCK || mode == M_UNLOCK) { 331 332 if (a_name == NULL && pwd == NULL) /* Try harder */ 333 pwd = GETPWUID(atoi(a_uid->val)); 334 335 if (pwd == NULL) { 336 if (mode == M_PRINT && getarg(args, 'F')) { 337 fakeuser.pw_name = a_name ? a_name->val : "nouser"; 338 fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1; 339 return print_user(&fakeuser, 340 getarg(args, 'P') != NULL, 341 getarg(args, '7') != NULL); 342 } 343 if (a_name == NULL) 344 errx(EX_NOUSER, "no such uid `%s'", a_uid->val); 345 errx(EX_NOUSER, "no such user `%s'", a_name->val); 346 } 347 348 if (a_name == NULL) /* May be needed later */ 349 a_name = addarg(args, 'n', newstr(pwd->pw_name)); 350 351 /* 352 * The M_LOCK and M_UNLOCK functions simply add or remove 353 * a "*LOCKED*" prefix from in front of the password to 354 * prevent it decoding correctly, and therefore prevents 355 * access. Of course, this only prevents access via 356 * password authentication (not ssh, kerberos or any 357 * other method that does not use the UNIX password) but 358 * that is a known limitation. 359 */ 360 361 if (mode == M_LOCK) { 362 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) == 0) 363 errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name); 364 passtmp = malloc(strlen(pwd->pw_passwd) + sizeof(locked_str)); 365 if (passtmp == NULL) /* disaster */ 366 errx(EX_UNAVAILABLE, "out of memory"); 367 strcpy(passtmp, locked_str); 368 strcat(passtmp, pwd->pw_passwd); 369 pwd->pw_passwd = passtmp; 370 edited = 1; 371 } else if (mode == M_UNLOCK) { 372 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) != 0) 373 errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name); 374 pwd->pw_passwd += sizeof(locked_str)-1; 375 edited = 1; 376 } else if (mode == M_DELETE) { 377 /* 378 * Handle deletions now 379 */ 380 char file[MAXPATHLEN]; 381 char home[MAXPATHLEN]; 382 uid_t uid = pwd->pw_uid; 383 struct group *gr; 384 char grname[LOGNAMESIZE]; 385 386 if (strcmp(pwd->pw_name, "root") == 0) 387 errx(EX_DATAERR, "cannot remove user 'root'"); 388 389 if (!PWALTDIR()) { 390 /* 391 * Remove opie record from /etc/opiekeys 392 */ 393 394 rmopie(pwd->pw_name); 395 396 /* 397 * Remove crontabs 398 */ 399 snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name); 400 if (access(file, F_OK) == 0) { 401 sprintf(file, "crontab -u %s -r", pwd->pw_name); 402 system(file); 403 } 404 } 405 /* 406 * Save these for later, since contents of pwd may be 407 * invalidated by deletion 408 */ 409 sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 410 strlcpy(home, pwd->pw_dir, sizeof(home)); 411 gr = GETGRGID(pwd->pw_gid); 412 if (gr != NULL) 413 strlcpy(grname, gr->gr_name, LOGNAMESIZE); 414 else 415 grname[0] = '\0'; 416 417 rc = delpwent(pwd); 418 if (rc == -1) 419 err(EX_IOERR, "user '%s' does not exist", pwd->pw_name); 420 else if (rc != 0) { 421 warn("passwd update"); 422 return EX_IOERR; 423 } 424 425 if (cnf->nispasswd && *cnf->nispasswd=='/') { 426 rc = delnispwent(cnf->nispasswd, a_name->val); 427 if (rc == -1) 428 warnx("WARNING: user '%s' does not exist in NIS passwd", pwd->pw_name); 429 else if (rc != 0) 430 warn("WARNING: NIS passwd update"); 431 /* non-fatal */ 432 } 433 434 grp = GETGRNAM(a_name->val); 435 if (grp != NULL && 436 (grp->gr_mem == NULL || *grp->gr_mem == NULL) && 437 strcmp(a_name->val, grname) == 0) 438 delgrent(GETGRNAM(a_name->val)); 439 SETGRENT(); 440 while ((grp = GETGRENT()) != NULL) { 441 int i, j; 442 char group[MAXLOGNAME]; 443 if (grp->gr_mem != NULL) { 444 for (i = 0; grp->gr_mem[i] != NULL; i++) { 445 if (!strcmp(grp->gr_mem[i], a_name->val)) { 446 for (j = i; grp->gr_mem[j] != NULL; j++) 447 grp->gr_mem[j] = grp->gr_mem[j+1]; 448 strlcpy(group, grp->gr_name, MAXLOGNAME); 449 chggrent(group, grp); 450 } 451 } 452 } 453 } 454 ENDGRENT(); 455 456 pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid); 457 458 if (!PWALTDIR()) { 459 /* 460 * Remove mail file 461 */ 462 remove(file); 463 464 /* 465 * Remove at jobs 466 */ 467 if (getpwuid(uid) == NULL) 468 rmat(uid); 469 470 /* 471 * Remove home directory and contents 472 */ 473 if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) { 474 if (stat(home, &st) != -1) { 475 rm_r(home, uid); 476 pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved", 477 a_name->val, (long) uid, home, 478 stat(home, &st) == -1 ? "" : "not completely "); 479 } 480 } 481 } 482 return EXIT_SUCCESS; 483 } else if (mode == M_PRINT) 484 return print_user(pwd, 485 getarg(args, 'P') != NULL, 486 getarg(args, '7') != NULL); 487 488 /* 489 * The rest is edit code 490 */ 491 if ((arg = getarg(args, 'l')) != NULL) { 492 if (strcmp(pwd->pw_name, "root") == 0) 493 errx(EX_DATAERR, "can't rename `root' account"); 494 pwd->pw_name = pw_checkname((u_char *)arg->val, 0); 495 edited = 1; 496 } 497 498 if ((arg = getarg(args, 'u')) != NULL && isdigit((unsigned char)*arg->val)) { 499 pwd->pw_uid = (uid_t) atol(arg->val); 500 edited = 1; 501 if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 502 errx(EX_DATAERR, "can't change uid of `root' account"); 503 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 504 warnx("WARNING: account `%s' will have a uid of 0 (superuser access!)", pwd->pw_name); 505 } 506 507 if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) { /* Already checked this */ 508 gid_t newgid = (gid_t) GETGRNAM(cnf->default_group)->gr_gid; 509 if (newgid != pwd->pw_gid) { 510 edited = 1; 511 pwd->pw_gid = newgid; 512 } 513 } 514 515 if ((arg = getarg(args, 'p')) != NULL) { 516 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 517 if (pwd->pw_change != 0) { 518 pwd->pw_change = 0; 519 edited = 1; 520 } 521 } 522 else { 523 time_t now = time(NULL); 524 time_t expire = parse_date(now, arg->val); 525 526 if (pwd->pw_change != expire) { 527 pwd->pw_change = expire; 528 edited = 1; 529 } 530 } 531 } 532 533 if ((arg = getarg(args, 'e')) != NULL) { 534 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 535 if (pwd->pw_expire != 0) { 536 pwd->pw_expire = 0; 537 edited = 1; 538 } 539 } 540 else { 541 time_t now = time(NULL); 542 time_t expire = parse_date(now, arg->val); 543 544 if (pwd->pw_expire != expire) { 545 pwd->pw_expire = expire; 546 edited = 1; 547 } 548 } 549 } 550 551 if ((arg = getarg(args, 's')) != NULL) { 552 char *shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 553 if (shell == NULL) 554 shell = ""; 555 if (strcmp(shell, pwd->pw_shell) != 0) { 556 pwd->pw_shell = shell; 557 edited = 1; 558 } 559 } 560 561 if (getarg(args, 'L')) { 562 if (cnf->default_class == NULL) 563 cnf->default_class = ""; 564 if (strcmp(pwd->pw_class, cnf->default_class) != 0) { 565 pwd->pw_class = cnf->default_class; 566 edited = 1; 567 } 568 } 569 570 if ((arg = getarg(args, 'd')) != NULL) { 571 if (strcmp(pwd->pw_dir, arg->val)) 572 edited = 1; 573 if (stat(pwd->pw_dir = arg->val, &st) == -1) { 574 if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0) 575 warnx("WARNING: home `%s' does not exist", pwd->pw_dir); 576 } else if (!S_ISDIR(st.st_mode)) 577 warnx("WARNING: home `%s' is not a directory", pwd->pw_dir); 578 } 579 580 if ((arg = getarg(args, 'w')) != NULL && 581 getarg(args, 'h') == NULL && getarg(args, 'H') == NULL) { 582 login_cap_t *lc; 583 584 lc = login_getpwclass(pwd); 585 if (lc == NULL || 586 login_setcryptfmt(lc, "sha512", NULL) == NULL) 587 warn("setting crypt(3) format"); 588 login_close(lc); 589 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 590 edited = 1; 591 } 592 593 } else { 594 login_cap_t *lc; 595 596 /* 597 * Add code 598 */ 599 600 if (a_name == NULL) /* Required */ 601 errx(EX_DATAERR, "login name required"); 602 else if ((pwd = GETPWNAM(a_name->val)) != NULL) /* Exists */ 603 errx(EX_DATAERR, "login name `%s' already exists", a_name->val); 604 605 /* 606 * Now, set up defaults for a new user 607 */ 608 pwd = &fakeuser; 609 pwd->pw_name = a_name->val; 610 pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 611 pwd->pw_uid = pw_uidpolicy(cnf, args); 612 pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid); 613 pwd->pw_change = pw_pwdpolicy(cnf, args); 614 pwd->pw_expire = pw_exppolicy(cnf, args); 615 pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 616 pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 617 lc = login_getpwclass(pwd); 618 if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 619 warn("setting crypt(3) format"); 620 login_close(lc); 621 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 622 edited = 1; 623 624 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 625 warnx("WARNING: new account `%s' has a uid of 0 (superuser access!)", pwd->pw_name); 626 } 627 628 /* 629 * Shared add/edit code 630 */ 631 if ((arg = getarg(args, 'c')) != NULL) { 632 char *gecos = pw_checkname((u_char *)arg->val, 1); 633 if (strcmp(pwd->pw_gecos, gecos) != 0) { 634 pwd->pw_gecos = gecos; 635 edited = 1; 636 } 637 } 638 639 if ((arg = getarg(args, 'h')) != NULL || 640 (arg = getarg(args, 'H')) != NULL) { 641 if (strcmp(arg->val, "-") == 0) { 642 if (!pwd->pw_passwd || *pwd->pw_passwd != '*') { 643 pwd->pw_passwd = "*"; /* No access */ 644 edited = 1; 645 } 646 } else { 647 int fd = atoi(arg->val); 648 int precrypt = (arg->ch == 'H'); 649 int b; 650 int istty = isatty(fd); 651 struct termios t; 652 login_cap_t *lc; 653 654 if (istty) { 655 if (tcgetattr(fd, &t) == -1) 656 istty = 0; 657 else { 658 struct termios n = t; 659 660 /* Disable echo */ 661 n.c_lflag &= ~(ECHO); 662 tcsetattr(fd, TCSANOW, &n); 663 printf("%s%spassword for user %s:", 664 (mode == M_UPDATE) ? "new " : "", 665 precrypt ? "encrypted " : "", 666 pwd->pw_name); 667 fflush(stdout); 668 } 669 } 670 b = read(fd, line, sizeof(line) - 1); 671 if (istty) { /* Restore state */ 672 tcsetattr(fd, TCSANOW, &t); 673 fputc('\n', stdout); 674 fflush(stdout); 675 } 676 if (b < 0) { 677 warn("-%c file descriptor", precrypt ? 'H' : 678 'h'); 679 return EX_IOERR; 680 } 681 line[b] = '\0'; 682 if ((p = strpbrk(line, "\r\n")) != NULL) 683 *p = '\0'; 684 if (!*line) 685 errx(EX_DATAERR, "empty password read on file descriptor %d", fd); 686 if (precrypt) { 687 if (strchr(line, ':') != NULL) 688 return EX_DATAERR; 689 pwd->pw_passwd = line; 690 } else { 691 lc = login_getpwclass(pwd); 692 if (lc == NULL || 693 login_setcryptfmt(lc, "sha512", NULL) == NULL) 694 warn("setting crypt(3) format"); 695 login_close(lc); 696 pwd->pw_passwd = pw_pwcrypt(line); 697 } 698 edited = 1; 699 } 700 } 701 702 /* 703 * Special case: -N only displays & exits 704 */ 705 if (getarg(args, 'N') != NULL) 706 return print_user(pwd, 707 getarg(args, 'P') != NULL, 708 getarg(args, '7') != NULL); 709 710 if (mode == M_ADD) { 711 edited = 1; /* Always */ 712 rc = addpwent(pwd); 713 if (rc == -1) { 714 warnx("user '%s' already exists", pwd->pw_name); 715 return EX_IOERR; 716 } else if (rc != 0) { 717 warn("passwd file update"); 718 return EX_IOERR; 719 } 720 if (cnf->nispasswd && *cnf->nispasswd=='/') { 721 rc = addnispwent(cnf->nispasswd, pwd); 722 if (rc == -1) 723 warnx("User '%s' already exists in NIS passwd", pwd->pw_name); 724 else 725 warn("NIS passwd update"); 726 /* NOTE: we treat NIS-only update errors as non-fatal */ 727 } 728 } else if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) { 729 if (edited) { /* Only updated this if required */ 730 rc = chgpwent(a_name->val, pwd); 731 if (rc == -1) { 732 warnx("user '%s' does not exist (NIS?)", pwd->pw_name); 733 return EX_IOERR; 734 } else if (rc != 0) { 735 warn("passwd file update"); 736 return EX_IOERR; 737 } 738 if ( cnf->nispasswd && *cnf->nispasswd=='/') { 739 rc = chgnispwent(cnf->nispasswd, a_name->val, pwd); 740 if (rc == -1) 741 warn("User '%s' not found in NIS passwd", pwd->pw_name); 742 else 743 warn("NIS passwd update"); 744 /* NOTE: NIS-only update errors are not fatal */ 745 } 746 } 747 } 748 749 /* 750 * Ok, user is created or changed - now edit group file 751 */ 752 753 if (mode == M_ADD || getarg(args, 'G') != NULL) { 754 int i, j; 755 /* First remove the user from all group */ 756 SETGRENT(); 757 while ((grp = GETGRENT()) != NULL) { 758 char group[MAXLOGNAME]; 759 if (grp->gr_mem == NULL) 760 continue; 761 for (i = 0; grp->gr_mem[i] != NULL; i++) { 762 if (strcmp(grp->gr_mem[i] , pwd->pw_name) != 0) 763 continue; 764 for (j = i; grp->gr_mem[j] != NULL ; j++) 765 grp->gr_mem[j] = grp->gr_mem[j+1]; 766 strlcpy(group, grp->gr_name, MAXLOGNAME); 767 chggrent(group, grp); 768 } 769 } 770 ENDGRENT(); 771 772 /* now add to group where needed */ 773 for (i = 0; cnf->groups[i] != NULL; i++) { 774 grp = GETGRNAM(cnf->groups[i]); 775 grp = gr_add(grp, pwd->pw_name); 776 /* 777 * grp can only be NULL in 2 cases: 778 * - the new member is already a member 779 * - a problem with memory occurs 780 * in both cases we want to skip now. 781 */ 782 if (grp == NULL) 783 continue; 784 chggrent(cnf->groups[i], grp); 785 free(grp); 786 } 787 } 788 789 790 /* go get a current version of pwd */ 791 pwd = GETPWNAM(a_name->val); 792 if (pwd == NULL) { 793 /* This will fail when we rename, so special case that */ 794 if (mode == M_UPDATE && (arg = getarg(args, 'l')) != NULL) { 795 a_name->val = arg->val; /* update new name */ 796 pwd = GETPWNAM(a_name->val); /* refetch renamed rec */ 797 } 798 } 799 if (pwd == NULL) /* can't go on without this */ 800 errx(EX_NOUSER, "user '%s' disappeared during update", a_name->val); 801 802 grp = GETGRGID(pwd->pw_gid); 803 pw_log(cnf, mode, W_USER, "%s(%ld):%s(%ld):%s:%s:%s", 804 pwd->pw_name, (long) pwd->pw_uid, 805 grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1), 806 pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 807 808 /* 809 * If adding, let's touch and chown the user's mail file. This is not 810 * strictly necessary under BSD with a 0755 maildir but it also 811 * doesn't hurt anything to create the empty mailfile 812 */ 813 if (mode == M_ADD) { 814 if (!PWALTDIR()) { 815 sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 816 close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 817 * mtime */ 818 chown(line, pwd->pw_uid, pwd->pw_gid); 819 } 820 } 821 822 /* 823 * Let's create and populate the user's home directory. Note 824 * that this also `works' for editing users if -m is used, but 825 * existing files will *not* be overwritten. 826 */ 827 if (!PWALTDIR() && getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 828 copymkdir(pwd->pw_dir, cnf->dotdir, cnf->homemode, pwd->pw_uid, pwd->pw_gid); 829 pw_log(cnf, mode, W_USER, "%s(%ld) home %s made", 830 pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir); 831 } 832 833 834 /* 835 * Finally, send mail to the new user as well, if we are asked to 836 */ 837 if (mode == M_ADD && !PWALTDIR() && cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 838 FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 839 840 if (pfp == NULL) 841 warn("sendmail"); 842 else { 843 fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 844 while (fgets(line, sizeof(line), fp) != NULL) { 845 /* Do substitutions? */ 846 fputs(line, pfp); 847 } 848 pclose(pfp); 849 pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent", 850 pwd->pw_name, (long) pwd->pw_uid); 851 } 852 fclose(fp); 853 } 854 855 return EXIT_SUCCESS; 856} 857 858 859static uid_t 860pw_uidpolicy(struct userconf * cnf, struct cargs * args) 861{ 862 struct passwd *pwd; 863 uid_t uid = (uid_t) - 1; 864 struct carg *a_uid = getarg(args, 'u'); 865 866 /* 867 * Check the given uid, if any 868 */ 869 if (a_uid != NULL) { 870 uid = (uid_t) atol(a_uid->val); 871 872 if ((pwd = GETPWUID(uid)) != NULL && getarg(args, 'o') == NULL) 873 errx(EX_DATAERR, "uid `%ld' has already been allocated", (long) pwd->pw_uid); 874 } else { 875 struct bitmap bm; 876 877 /* 878 * We need to allocate the next available uid under one of 879 * two policies a) Grab the first unused uid b) Grab the 880 * highest possible unused uid 881 */ 882 if (cnf->min_uid >= cnf->max_uid) { /* Sanity 883 * claus^H^H^H^Hheck */ 884 cnf->min_uid = 1000; 885 cnf->max_uid = 32000; 886 } 887 bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 888 889 /* 890 * Now, let's fill the bitmap from the password file 891 */ 892 SETPWENT(); 893 while ((pwd = GETPWENT()) != NULL) 894 if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid) 895 bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 896 ENDPWENT(); 897 898 /* 899 * Then apply the policy, with fallback to reuse if necessary 900 */ 901 if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 902 uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 903 904 /* 905 * Another sanity check 906 */ 907 if (uid < cnf->min_uid || uid > cnf->max_uid) 908 errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used"); 909 bm_dealloc(&bm); 910 } 911 return uid; 912} 913 914 915static uid_t 916pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer) 917{ 918 struct group *grp; 919 gid_t gid = (uid_t) - 1; 920 struct carg *a_gid = getarg(args, 'g'); 921 922 /* 923 * If no arg given, see if default can help out 924 */ 925 if (a_gid == NULL && cnf->default_group && *cnf->default_group) 926 a_gid = addarg(args, 'g', cnf->default_group); 927 928 /* 929 * Check the given gid, if any 930 */ 931 SETGRENT(); 932 if (a_gid != NULL) { 933 if ((grp = GETGRNAM(a_gid->val)) == NULL) { 934 gid = (gid_t) atol(a_gid->val); 935 if ((gid == 0 && !isdigit((unsigned char)*a_gid->val)) || (grp = GETGRGID(gid)) == NULL) 936 errx(EX_NOUSER, "group `%s' is not defined", a_gid->val); 937 } 938 gid = grp->gr_gid; 939 } else if ((grp = GETGRNAM(nam)) != NULL && 940 (grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) { 941 gid = grp->gr_gid; /* Already created? Use it anyway... */ 942 } else { 943 struct cargs grpargs; 944 char tmp[32]; 945 946 LIST_INIT(&grpargs); 947 addarg(&grpargs, 'n', nam); 948 949 /* 950 * We need to auto-create a group with the user's name. We 951 * can send all the appropriate output to our sister routine 952 * bit first see if we can create a group with gid==uid so we 953 * can keep the user and group ids in sync. We purposely do 954 * NOT check the gid range if we can force the sync. If the 955 * user's name dups an existing group, then the group add 956 * function will happily handle that case for us and exit. 957 */ 958 if (GETGRGID(prefer) == NULL) { 959 sprintf(tmp, "%lu", (unsigned long) prefer); 960 addarg(&grpargs, 'g', tmp); 961 } 962 if (getarg(args, 'N')) 963 { 964 addarg(&grpargs, 'N', NULL); 965 addarg(&grpargs, 'q', NULL); 966 gid = pw_group(cnf, M_NEXT, &grpargs); 967 } 968 else 969 { 970 pw_group(cnf, M_ADD, &grpargs); 971 if ((grp = GETGRNAM(nam)) != NULL) 972 gid = grp->gr_gid; 973 } 974 a_gid = LIST_FIRST(&grpargs); 975 while (a_gid != NULL) { 976 struct carg *t = LIST_NEXT(a_gid, list); 977 LIST_REMOVE(a_gid, list); 978 a_gid = t; 979 } 980 } 981 ENDGRENT(); 982 return gid; 983} 984 985 986static time_t 987pw_pwdpolicy(struct userconf * cnf, struct cargs * args) 988{ 989 time_t result = 0; 990 time_t now = time(NULL); 991 struct carg *arg = getarg(args, 'p'); 992 993 if (arg != NULL) { 994 if ((result = parse_date(now, arg->val)) == now) 995 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 996 } else if (cnf->password_days > 0) 997 result = now + ((long) cnf->password_days * 86400L); 998 return result; 999} 1000 1001 1002static time_t 1003pw_exppolicy(struct userconf * cnf, struct cargs * args) 1004{ 1005 time_t result = 0; 1006 time_t now = time(NULL); 1007 struct carg *arg = getarg(args, 'e'); 1008 1009 if (arg != NULL) { 1010 if ((result = parse_date(now, arg->val)) == now) 1011 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 1012 } else if (cnf->expire_days > 0) 1013 result = now + ((long) cnf->expire_days * 86400L); 1014 return result; 1015} 1016 1017 1018static char * 1019pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 1020{ 1021 struct carg *arg = getarg(args, 'd'); 1022 1023 if (arg) 1024 return arg->val; 1025 else { 1026 static char home[128]; 1027 1028 if (cnf->home == NULL || *cnf->home == '\0') 1029 errx(EX_CONFIG, "no base home directory set"); 1030 sprintf(home, "%s/%s", cnf->home, user); 1031 return home; 1032 } 1033} 1034 1035static char * 1036shell_path(char const * path, char *shells[], char *sh) 1037{ 1038 if (sh != NULL && (*sh == '/' || *sh == '\0')) 1039 return sh; /* specified full path or forced none */ 1040 else { 1041 char *p; 1042 char paths[_UC_MAXLINE]; 1043 1044 /* 1045 * We need to search paths 1046 */ 1047 strlcpy(paths, path, sizeof(paths)); 1048 for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 1049 int i; 1050 static char shellpath[256]; 1051 1052 if (sh != NULL) { 1053 sprintf(shellpath, "%s/%s", p, sh); 1054 if (access(shellpath, X_OK) == 0) 1055 return shellpath; 1056 } else 1057 for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 1058 sprintf(shellpath, "%s/%s", p, shells[i]); 1059 if (access(shellpath, X_OK) == 0) 1060 return shellpath; 1061 } 1062 } 1063 if (sh == NULL) 1064 errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh); 1065 errx(EX_CONFIG, "no default shell available or defined"); 1066 return NULL; 1067 } 1068} 1069 1070 1071static char * 1072pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 1073{ 1074 char *sh = newshell; 1075 struct carg *arg = getarg(args, 's'); 1076 1077 if (newshell == NULL && arg != NULL) 1078 sh = arg->val; 1079 return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 1080} 1081 1082#define SALTSIZE 32 1083 1084static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./"; 1085 1086char * 1087pw_pwcrypt(char *password) 1088{ 1089 int i; 1090 char salt[SALTSIZE + 1]; 1091 char *cryptpw; 1092 1093 static char buf[256]; 1094 1095 /* 1096 * Calculate a salt value 1097 */ 1098 for (i = 0; i < SALTSIZE; i++) 1099 salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)]; 1100 salt[SALTSIZE] = '\0'; 1101 1102 cryptpw = crypt(password, salt); 1103 if (cryptpw == NULL) 1104 errx(EX_CONFIG, "crypt(3) failure"); 1105 return strcpy(buf, cryptpw); 1106} 1107 1108 1109static char * 1110pw_password(struct userconf * cnf, struct cargs * args, char const * user) 1111{ 1112 int i, l; 1113 char pwbuf[32]; 1114 1115 switch (cnf->default_password) { 1116 case -1: /* Random password */ 1117 l = (arc4random() % 8 + 8); /* 8 - 16 chars */ 1118 for (i = 0; i < l; i++) 1119 pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)]; 1120 pwbuf[i] = '\0'; 1121 1122 /* 1123 * We give this information back to the user 1124 */ 1125 if (getarg(args, 'h') == NULL && getarg(args, 'H') == NULL && 1126 getarg(args, 'N') == NULL) { 1127 if (isatty(STDOUT_FILENO)) 1128 printf("Password for '%s' is: ", user); 1129 printf("%s\n", pwbuf); 1130 fflush(stdout); 1131 } 1132 break; 1133 1134 case -2: /* No password at all! */ 1135 return ""; 1136 1137 case 0: /* No login - default */ 1138 default: 1139 return "*"; 1140 1141 case 1: /* user's name */ 1142 strlcpy(pwbuf, user, sizeof(pwbuf)); 1143 break; 1144 } 1145 return pw_pwcrypt(pwbuf); 1146} 1147 1148 1149static int 1150print_user(struct passwd * pwd, int pretty, int v7) 1151{ 1152 if (!pretty) { 1153 char *buf; 1154 1155 if (!v7) 1156 pwd->pw_passwd = (pwd->pw_passwd == NULL) ? "" : "*"; 1157 1158 buf = v7 ? pw_make_v7(pwd) : pw_make(pwd); 1159 printf("%s\n", buf); 1160 free(buf); 1161 } else { 1162 int j; 1163 char *p; 1164 struct group *grp = GETGRGID(pwd->pw_gid); 1165 char uname[60] = "User &", office[60] = "[None]", 1166 wphone[60] = "[None]", hphone[60] = "[None]"; 1167 char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 1168 struct tm * tptr; 1169 1170 if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 1171 strlcpy(uname, p, sizeof(uname)); 1172 if ((p = strtok(NULL, ",")) != NULL) { 1173 strlcpy(office, p, sizeof(office)); 1174 if ((p = strtok(NULL, ",")) != NULL) { 1175 strlcpy(wphone, p, sizeof(wphone)); 1176 if ((p = strtok(NULL, "")) != NULL) { 1177 strlcpy(hphone, p, 1178 sizeof(hphone)); 1179 } 1180 } 1181 } 1182 } 1183 /* 1184 * Handle '&' in gecos field 1185 */ 1186 if ((p = strchr(uname, '&')) != NULL) { 1187 int l = strlen(pwd->pw_name); 1188 int m = strlen(p); 1189 1190 memmove(p + l, p + 1, m); 1191 memmove(p, pwd->pw_name, l); 1192 *p = (char) toupper((unsigned char)*p); 1193 } 1194 if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 1195 strftime(acexpire, sizeof acexpire, "%c", tptr); 1196 if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL) 1197 strftime(pwexpire, sizeof pwexpire, "%c", tptr); 1198 printf("Login Name: %-15s #%-12ld Group: %-15s #%ld\n" 1199 " Full Name: %s\n" 1200 " Home: %-26.26s Class: %s\n" 1201 " Shell: %-26.26s Office: %s\n" 1202 "Work Phone: %-26.26s Home Phone: %s\n" 1203 "Acc Expire: %-26.26s Pwd Expire: %s\n", 1204 pwd->pw_name, (long) pwd->pw_uid, 1205 grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid, 1206 uname, pwd->pw_dir, pwd->pw_class, 1207 pwd->pw_shell, office, wphone, hphone, 1208 acexpire, pwexpire); 1209 SETGRENT(); 1210 j = 0; 1211 while ((grp=GETGRENT()) != NULL) 1212 { 1213 int i = 0; 1214 if (grp->gr_mem != NULL) { 1215 while (grp->gr_mem[i] != NULL) 1216 { 1217 if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 1218 { 1219 printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 1220 break; 1221 } 1222 ++i; 1223 } 1224 } 1225 } 1226 ENDGRENT(); 1227 printf("%s", j ? "\n" : ""); 1228 } 1229 return EXIT_SUCCESS; 1230} 1231 1232char * 1233pw_checkname(u_char *name, int gecos) 1234{ 1235 char showch[8]; 1236 u_char const *badchars, *ch, *showtype; 1237 int reject; 1238 1239 ch = name; 1240 reject = 0; 1241 if (gecos) { 1242 /* See if the name is valid as a gecos (comment) field. */ 1243 badchars = ":!@"; 1244 showtype = "gecos field"; 1245 } else { 1246 /* See if the name is valid as a userid or group. */ 1247 badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\""; 1248 showtype = "userid/group name"; 1249 /* Userids and groups can not have a leading '-'. */ 1250 if (*ch == '-') 1251 reject = 1; 1252 } 1253 if (!reject) { 1254 while (*ch) { 1255 if (strchr(badchars, *ch) != NULL || *ch < ' ' || 1256 *ch == 127) { 1257 reject = 1; 1258 break; 1259 } 1260 /* 8-bit characters are only allowed in GECOS fields */ 1261 if (!gecos && (*ch & 0x80)) { 1262 reject = 1; 1263 break; 1264 } 1265 ch++; 1266 } 1267 } 1268 /* 1269 * A `$' is allowed as the final character for userids and groups, 1270 * mainly for the benefit of samba. 1271 */ 1272 if (reject && !gecos) { 1273 if (*ch == '$' && *(ch + 1) == '\0') { 1274 reject = 0; 1275 ch++; 1276 } 1277 } 1278 if (reject) { 1279 snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127) 1280 ? "`%c'" : "0x%02x", *ch); 1281 errx(EX_DATAERR, "invalid character %s at position %td in %s", 1282 showch, (ch - name), showtype); 1283 } 1284 if (!gecos && (ch - name) > LOGNAMESIZE) 1285 errx(EX_DATAERR, "name too long `%s' (max is %d)", name, 1286 LOGNAMESIZE); 1287 return (char *)name; 1288} 1289 1290 1291static void 1292rmat(uid_t uid) 1293{ 1294 DIR *d = opendir("/var/at/jobs"); 1295 1296 if (d != NULL) { 1297 struct dirent *e; 1298 1299 while ((e = readdir(d)) != NULL) { 1300 struct stat st; 1301 1302 if (strncmp(e->d_name, ".lock", 5) != 0 && 1303 stat(e->d_name, &st) == 0 && 1304 !S_ISDIR(st.st_mode) && 1305 st.st_uid == uid) { 1306 char tmp[MAXPATHLEN]; 1307 1308 sprintf(tmp, "/usr/bin/atrm %s", e->d_name); 1309 system(tmp); 1310 } 1311 } 1312 closedir(d); 1313 } 1314} 1315 1316static void 1317rmopie(char const * name) 1318{ 1319 static const char etcopie[] = "/etc/opiekeys"; 1320 FILE *fp = fopen(etcopie, "r+"); 1321 1322 if (fp != NULL) { 1323 char tmp[1024]; 1324 off_t atofs = 0; 1325 int length = strlen(name); 1326 1327 while (fgets(tmp, sizeof tmp, fp) != NULL) { 1328 if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') { 1329 if (fseek(fp, atofs, SEEK_SET) == 0) { 1330 fwrite("#", 1, 1, fp); /* Comment username out */ 1331 } 1332 break; 1333 } 1334 atofs = ftell(fp); 1335 } 1336 /* 1337 * If we got an error of any sort, don't update! 1338 */ 1339 fclose(fp); 1340 } 1341} 1342 1343