pw_user.c revision 282683
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 282683 2015-05-09 19:09:34Z 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 snprintf(dbuf, MAXPATHLEN, "/usr%s", cnf->home); 189 if (mkdir(dbuf, _DEF_DIRMODE) != -1 || errno == EEXIST) { 190 chown(dbuf, 0, 0); 191 /* 192 * Skip first "/" and create symlink: 193 * /home -> usr/home 194 */ 195 symlink(dbuf+1, cnf->home); 196 } 197 /* If this falls, fall back to old method */ 198 } 199 strlcpy(dbuf, cnf->home, sizeof(dbuf)); 200 p = dbuf; 201 if (stat(dbuf, &st) == -1) { 202 while ((p = strchr(p + 1, '/')) != NULL) { 203 *p = '\0'; 204 if (stat(dbuf, &st) == -1) { 205 if (mkdir(dbuf, _DEF_DIRMODE) == -1) 206 goto direrr; 207 chown(dbuf, 0, 0); 208 } else if (!S_ISDIR(st.st_mode)) 209 errx(EX_OSFILE, "'%s' (root home parent) is not a directory", dbuf); 210 *p = '/'; 211 } 212 } 213 if (stat(dbuf, &st) == -1) { 214 if (mkdir(dbuf, _DEF_DIRMODE) == -1) { 215 direrr: err(EX_OSFILE, "mkdir '%s'", dbuf); 216 } 217 chown(dbuf, 0, 0); 218 } 219 } else if (!S_ISDIR(st.st_mode)) 220 errx(EX_OSFILE, "root home `%s' is not a directory", cnf->home); 221 } 222 223 if ((arg = getarg(args, 'e')) != NULL) 224 cnf->expire_days = atoi(arg->val); 225 226 if ((arg = getarg(args, 'y')) != NULL) 227 cnf->nispasswd = arg->val; 228 229 if ((arg = getarg(args, 'p')) != NULL && arg->val) 230 cnf->password_days = atoi(arg->val); 231 232 if ((arg = getarg(args, 'g')) != NULL) { 233 if (!*(p = arg->val)) /* Handle empty group list specially */ 234 cnf->default_group = ""; 235 else { 236 if ((grp = GETGRNAM(p)) == NULL) { 237 if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL) 238 errx(EX_NOUSER, "group `%s' does not exist", p); 239 } 240 cnf->default_group = newstr(grp->gr_name); 241 } 242 } 243 if ((arg = getarg(args, 'L')) != NULL) 244 cnf->default_class = pw_checkname((u_char *)arg->val, 0); 245 246 if ((arg = getarg(args, 'G')) != NULL && arg->val) { 247 int i = 0; 248 249 for (p = strtok(arg->val, ", \t"); p != NULL; p = strtok(NULL, ", \t")) { 250 if ((grp = GETGRNAM(p)) == NULL) { 251 if (!isdigit((unsigned char)*p) || (grp = GETGRGID((gid_t) atoi(p))) == NULL) 252 errx(EX_NOUSER, "group `%s' does not exist", p); 253 } 254 if (extendarray(&cnf->groups, &cnf->numgroups, i + 2) != -1) 255 cnf->groups[i++] = newstr(grp->gr_name); 256 } 257 while (i < cnf->numgroups) 258 cnf->groups[i++] = NULL; 259 } 260 261 if ((arg = getarg(args, 'k')) != NULL) { 262 if (stat(cnf->dotdir = arg->val, &st) == -1 || !S_ISDIR(st.st_mode)) 263 errx(EX_OSFILE, "skeleton `%s' is not a directory or does not exist", cnf->dotdir); 264 } 265 266 if ((arg = getarg(args, 's')) != NULL) 267 cnf->shell_default = arg->val; 268 269 if ((arg = getarg(args, 'w')) != NULL) 270 cnf->default_password = boolean_val(arg->val, cnf->default_password); 271 if (mode == M_ADD && getarg(args, 'D')) { 272 if (getarg(args, 'n') != NULL) 273 errx(EX_DATAERR, "can't combine `-D' with `-n name'"); 274 if ((arg = getarg(args, 'u')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 275 if ((cnf->min_uid = (uid_t) atoi(p)) == 0) 276 cnf->min_uid = 1000; 277 if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_uid = (uid_t) atoi(p)) < cnf->min_uid) 278 cnf->max_uid = 32000; 279 } 280 if ((arg = getarg(args, 'i')) != NULL && (p = strtok(arg->val, ", \t")) != NULL) { 281 if ((cnf->min_gid = (gid_t) atoi(p)) == 0) 282 cnf->min_gid = 1000; 283 if ((p = strtok(NULL, " ,\t")) == NULL || (cnf->max_gid = (gid_t) atoi(p)) < cnf->min_gid) 284 cnf->max_gid = 32000; 285 } 286 287 arg = getarg(args, 'C'); 288 if (write_userconfig(arg ? arg->val : NULL)) 289 return EXIT_SUCCESS; 290 warn("config update"); 291 return EX_IOERR; 292 } 293 294 if (mode == M_PRINT && getarg(args, 'a')) { 295 int pretty = getarg(args, 'P') != NULL; 296 int v7 = getarg(args, '7') != NULL; 297 SETPWENT(); 298 while ((pwd = GETPWENT()) != NULL) 299 print_user(pwd, pretty, v7); 300 ENDPWENT(); 301 return EXIT_SUCCESS; 302 } 303 304 if ((a_name = getarg(args, 'n')) != NULL) 305 pwd = GETPWNAM(pw_checkname((u_char *)a_name->val, 0)); 306 a_uid = getarg(args, 'u'); 307 308 if (a_uid == NULL) { 309 if (a_name == NULL) 310 errx(EX_DATAERR, "user name or id required"); 311 312 /* 313 * Determine whether 'n' switch is name or uid - we don't 314 * really don't really care which we have, but we need to 315 * know. 316 */ 317 if (mode != M_ADD && pwd == NULL 318 && strspn(a_name->val, "0123456789") == strlen(a_name->val) 319 && *a_name->val) { 320 (a_uid = a_name)->ch = 'u'; 321 a_name = NULL; 322 } 323 } else { 324 if (strspn(a_uid->val, "0123456789") != strlen(a_uid->val)) 325 errx(EX_USAGE, "-u expects a number"); 326 } 327 328 /* 329 * Update, delete & print require that the user exists 330 */ 331 if (mode == M_UPDATE || mode == M_DELETE || 332 mode == M_PRINT || mode == M_LOCK || mode == M_UNLOCK) { 333 334 if (a_name == NULL && pwd == NULL) /* Try harder */ 335 pwd = GETPWUID(atoi(a_uid->val)); 336 337 if (pwd == NULL) { 338 if (mode == M_PRINT && getarg(args, 'F')) { 339 fakeuser.pw_name = a_name ? a_name->val : "nouser"; 340 fakeuser.pw_uid = a_uid ? (uid_t) atol(a_uid->val) : -1; 341 return print_user(&fakeuser, 342 getarg(args, 'P') != NULL, 343 getarg(args, '7') != NULL); 344 } 345 if (a_name == NULL) 346 errx(EX_NOUSER, "no such uid `%s'", a_uid->val); 347 errx(EX_NOUSER, "no such user `%s'", a_name->val); 348 } 349 350 if (a_name == NULL) /* May be needed later */ 351 a_name = addarg(args, 'n', newstr(pwd->pw_name)); 352 353 /* 354 * The M_LOCK and M_UNLOCK functions simply add or remove 355 * a "*LOCKED*" prefix from in front of the password to 356 * prevent it decoding correctly, and therefore prevents 357 * access. Of course, this only prevents access via 358 * password authentication (not ssh, kerberos or any 359 * other method that does not use the UNIX password) but 360 * that is a known limitation. 361 */ 362 363 if (mode == M_LOCK) { 364 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) == 0) 365 errx(EX_DATAERR, "user '%s' is already locked", pwd->pw_name); 366 passtmp = malloc(strlen(pwd->pw_passwd) + sizeof(locked_str)); 367 if (passtmp == NULL) /* disaster */ 368 errx(EX_UNAVAILABLE, "out of memory"); 369 strcpy(passtmp, locked_str); 370 strcat(passtmp, pwd->pw_passwd); 371 pwd->pw_passwd = passtmp; 372 edited = 1; 373 } else if (mode == M_UNLOCK) { 374 if (strncmp(pwd->pw_passwd, locked_str, sizeof(locked_str)-1) != 0) 375 errx(EX_DATAERR, "user '%s' is not locked", pwd->pw_name); 376 pwd->pw_passwd += sizeof(locked_str)-1; 377 edited = 1; 378 } else if (mode == M_DELETE) { 379 /* 380 * Handle deletions now 381 */ 382 char file[MAXPATHLEN]; 383 char home[MAXPATHLEN]; 384 uid_t uid = pwd->pw_uid; 385 struct group *gr; 386 char grname[LOGNAMESIZE]; 387 388 if (strcmp(pwd->pw_name, "root") == 0) 389 errx(EX_DATAERR, "cannot remove user 'root'"); 390 391 if (!PWALTDIR()) { 392 /* 393 * Remove opie record from /etc/opiekeys 394 */ 395 396 rmopie(pwd->pw_name); 397 398 /* 399 * Remove crontabs 400 */ 401 snprintf(file, sizeof(file), "/var/cron/tabs/%s", pwd->pw_name); 402 if (access(file, F_OK) == 0) { 403 sprintf(file, "crontab -u %s -r", pwd->pw_name); 404 system(file); 405 } 406 } 407 /* 408 * Save these for later, since contents of pwd may be 409 * invalidated by deletion 410 */ 411 sprintf(file, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 412 strlcpy(home, pwd->pw_dir, sizeof(home)); 413 gr = GETGRGID(pwd->pw_gid); 414 if (gr != NULL) 415 strlcpy(grname, gr->gr_name, LOGNAMESIZE); 416 else 417 grname[0] = '\0'; 418 419 rc = delpwent(pwd); 420 if (rc == -1) 421 err(EX_IOERR, "user '%s' does not exist", pwd->pw_name); 422 else if (rc != 0) { 423 warn("passwd update"); 424 return EX_IOERR; 425 } 426 427 if (cnf->nispasswd && *cnf->nispasswd=='/') { 428 rc = delnispwent(cnf->nispasswd, a_name->val); 429 if (rc == -1) 430 warnx("WARNING: user '%s' does not exist in NIS passwd", pwd->pw_name); 431 else if (rc != 0) 432 warn("WARNING: NIS passwd update"); 433 /* non-fatal */ 434 } 435 436 grp = GETGRNAM(a_name->val); 437 if (grp != NULL && 438 (grp->gr_mem == NULL || *grp->gr_mem == NULL) && 439 strcmp(a_name->val, grname) == 0) 440 delgrent(GETGRNAM(a_name->val)); 441 SETGRENT(); 442 while ((grp = GETGRENT()) != NULL) { 443 int i, j; 444 char group[MAXLOGNAME]; 445 if (grp->gr_mem != NULL) { 446 for (i = 0; grp->gr_mem[i] != NULL; i++) { 447 if (!strcmp(grp->gr_mem[i], a_name->val)) { 448 for (j = i; grp->gr_mem[j] != NULL; j++) 449 grp->gr_mem[j] = grp->gr_mem[j+1]; 450 strlcpy(group, grp->gr_name, MAXLOGNAME); 451 chggrent(group, grp); 452 } 453 } 454 } 455 } 456 ENDGRENT(); 457 458 pw_log(cnf, mode, W_USER, "%s(%ld) account removed", a_name->val, (long) uid); 459 460 if (!PWALTDIR()) { 461 /* 462 * Remove mail file 463 */ 464 remove(file); 465 466 /* 467 * Remove at jobs 468 */ 469 if (getpwuid(uid) == NULL) 470 rmat(uid); 471 472 /* 473 * Remove home directory and contents 474 */ 475 if (getarg(args, 'r') != NULL && *home == '/' && getpwuid(uid) == NULL) { 476 if (stat(home, &st) != -1) { 477 rm_r(home, uid); 478 pw_log(cnf, mode, W_USER, "%s(%ld) home '%s' %sremoved", 479 a_name->val, (long) uid, home, 480 stat(home, &st) == -1 ? "" : "not completely "); 481 } 482 } 483 } 484 return EXIT_SUCCESS; 485 } else if (mode == M_PRINT) 486 return print_user(pwd, 487 getarg(args, 'P') != NULL, 488 getarg(args, '7') != NULL); 489 490 /* 491 * The rest is edit code 492 */ 493 if ((arg = getarg(args, 'l')) != NULL) { 494 if (strcmp(pwd->pw_name, "root") == 0) 495 errx(EX_DATAERR, "can't rename `root' account"); 496 pwd->pw_name = pw_checkname((u_char *)arg->val, 0); 497 edited = 1; 498 } 499 500 if ((arg = getarg(args, 'u')) != NULL && isdigit((unsigned char)*arg->val)) { 501 pwd->pw_uid = (uid_t) atol(arg->val); 502 edited = 1; 503 if (pwd->pw_uid != 0 && strcmp(pwd->pw_name, "root") == 0) 504 errx(EX_DATAERR, "can't change uid of `root' account"); 505 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 506 warnx("WARNING: account `%s' will have a uid of 0 (superuser access!)", pwd->pw_name); 507 } 508 509 if ((arg = getarg(args, 'g')) != NULL && pwd->pw_uid != 0) { /* Already checked this */ 510 gid_t newgid = (gid_t) GETGRNAM(cnf->default_group)->gr_gid; 511 if (newgid != pwd->pw_gid) { 512 edited = 1; 513 pwd->pw_gid = newgid; 514 } 515 } 516 517 if ((arg = getarg(args, 'p')) != NULL) { 518 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 519 if (pwd->pw_change != 0) { 520 pwd->pw_change = 0; 521 edited = 1; 522 } 523 } 524 else { 525 time_t now = time(NULL); 526 time_t expire = parse_date(now, arg->val); 527 528 if (pwd->pw_change != expire) { 529 pwd->pw_change = expire; 530 edited = 1; 531 } 532 } 533 } 534 535 if ((arg = getarg(args, 'e')) != NULL) { 536 if (*arg->val == '\0' || strcmp(arg->val, "0") == 0) { 537 if (pwd->pw_expire != 0) { 538 pwd->pw_expire = 0; 539 edited = 1; 540 } 541 } 542 else { 543 time_t now = time(NULL); 544 time_t expire = parse_date(now, arg->val); 545 546 if (pwd->pw_expire != expire) { 547 pwd->pw_expire = expire; 548 edited = 1; 549 } 550 } 551 } 552 553 if ((arg = getarg(args, 's')) != NULL) { 554 char *shell = shell_path(cnf->shelldir, cnf->shells, arg->val); 555 if (shell == NULL) 556 shell = ""; 557 if (strcmp(shell, pwd->pw_shell) != 0) { 558 pwd->pw_shell = shell; 559 edited = 1; 560 } 561 } 562 563 if (getarg(args, 'L')) { 564 if (cnf->default_class == NULL) 565 cnf->default_class = ""; 566 if (strcmp(pwd->pw_class, cnf->default_class) != 0) { 567 pwd->pw_class = cnf->default_class; 568 edited = 1; 569 } 570 } 571 572 if ((arg = getarg(args, 'd')) != NULL) { 573 if (strcmp(pwd->pw_dir, arg->val)) 574 edited = 1; 575 if (stat(pwd->pw_dir = arg->val, &st) == -1) { 576 if (getarg(args, 'm') == NULL && strcmp(pwd->pw_dir, "/nonexistent") != 0) 577 warnx("WARNING: home `%s' does not exist", pwd->pw_dir); 578 } else if (!S_ISDIR(st.st_mode)) 579 warnx("WARNING: home `%s' is not a directory", pwd->pw_dir); 580 } 581 582 if ((arg = getarg(args, 'w')) != NULL && 583 getarg(args, 'h') == NULL && getarg(args, 'H') == NULL) { 584 login_cap_t *lc; 585 586 lc = login_getpwclass(pwd); 587 if (lc == NULL || 588 login_setcryptfmt(lc, "sha512", NULL) == NULL) 589 warn("setting crypt(3) format"); 590 login_close(lc); 591 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 592 edited = 1; 593 } 594 595 } else { 596 login_cap_t *lc; 597 598 /* 599 * Add code 600 */ 601 602 if (a_name == NULL) /* Required */ 603 errx(EX_DATAERR, "login name required"); 604 else if ((pwd = GETPWNAM(a_name->val)) != NULL) /* Exists */ 605 errx(EX_DATAERR, "login name `%s' already exists", a_name->val); 606 607 /* 608 * Now, set up defaults for a new user 609 */ 610 pwd = &fakeuser; 611 pwd->pw_name = a_name->val; 612 pwd->pw_class = cnf->default_class ? cnf->default_class : ""; 613 pwd->pw_uid = pw_uidpolicy(cnf, args); 614 pwd->pw_gid = pw_gidpolicy(cnf, args, pwd->pw_name, (gid_t) pwd->pw_uid); 615 pwd->pw_change = pw_pwdpolicy(cnf, args); 616 pwd->pw_expire = pw_exppolicy(cnf, args); 617 pwd->pw_dir = pw_homepolicy(cnf, args, pwd->pw_name); 618 pwd->pw_shell = pw_shellpolicy(cnf, args, NULL); 619 lc = login_getpwclass(pwd); 620 if (lc == NULL || login_setcryptfmt(lc, "sha512", NULL) == NULL) 621 warn("setting crypt(3) format"); 622 login_close(lc); 623 pwd->pw_passwd = pw_password(cnf, args, pwd->pw_name); 624 edited = 1; 625 626 if (pwd->pw_uid == 0 && strcmp(pwd->pw_name, "root") != 0) 627 warnx("WARNING: new account `%s' has a uid of 0 (superuser access!)", pwd->pw_name); 628 } 629 630 /* 631 * Shared add/edit code 632 */ 633 if ((arg = getarg(args, 'c')) != NULL) { 634 char *gecos = pw_checkname((u_char *)arg->val, 1); 635 if (strcmp(pwd->pw_gecos, gecos) != 0) { 636 pwd->pw_gecos = gecos; 637 edited = 1; 638 } 639 } 640 641 if ((arg = getarg(args, 'h')) != NULL || 642 (arg = getarg(args, 'H')) != NULL) { 643 if (strcmp(arg->val, "-") == 0) { 644 if (!pwd->pw_passwd || *pwd->pw_passwd != '*') { 645 pwd->pw_passwd = "*"; /* No access */ 646 edited = 1; 647 } 648 } else { 649 int fd = atoi(arg->val); 650 int precrypt = (arg->ch == 'H'); 651 int b; 652 int istty = isatty(fd); 653 struct termios t; 654 login_cap_t *lc; 655 656 if (istty) { 657 if (tcgetattr(fd, &t) == -1) 658 istty = 0; 659 else { 660 struct termios n = t; 661 662 /* Disable echo */ 663 n.c_lflag &= ~(ECHO); 664 tcsetattr(fd, TCSANOW, &n); 665 printf("%s%spassword for user %s:", 666 (mode == M_UPDATE) ? "new " : "", 667 precrypt ? "encrypted " : "", 668 pwd->pw_name); 669 fflush(stdout); 670 } 671 } 672 b = read(fd, line, sizeof(line) - 1); 673 if (istty) { /* Restore state */ 674 tcsetattr(fd, TCSANOW, &t); 675 fputc('\n', stdout); 676 fflush(stdout); 677 } 678 if (b < 0) { 679 warn("-%c file descriptor", precrypt ? 'H' : 680 'h'); 681 return EX_IOERR; 682 } 683 line[b] = '\0'; 684 if ((p = strpbrk(line, "\r\n")) != NULL) 685 *p = '\0'; 686 if (!*line) 687 errx(EX_DATAERR, "empty password read on file descriptor %d", fd); 688 if (precrypt) { 689 if (strchr(line, ':') != NULL) 690 return EX_DATAERR; 691 pwd->pw_passwd = line; 692 } else { 693 lc = login_getpwclass(pwd); 694 if (lc == NULL || 695 login_setcryptfmt(lc, "sha512", NULL) == NULL) 696 warn("setting crypt(3) format"); 697 login_close(lc); 698 pwd->pw_passwd = pw_pwcrypt(line); 699 } 700 edited = 1; 701 } 702 } 703 704 /* 705 * Special case: -N only displays & exits 706 */ 707 if (getarg(args, 'N') != NULL) 708 return print_user(pwd, 709 getarg(args, 'P') != NULL, 710 getarg(args, '7') != NULL); 711 712 if (mode == M_ADD) { 713 edited = 1; /* Always */ 714 rc = addpwent(pwd); 715 if (rc == -1) { 716 warnx("user '%s' already exists", pwd->pw_name); 717 return EX_IOERR; 718 } else if (rc != 0) { 719 warn("passwd file update"); 720 return EX_IOERR; 721 } 722 if (cnf->nispasswd && *cnf->nispasswd=='/') { 723 rc = addnispwent(cnf->nispasswd, pwd); 724 if (rc == -1) 725 warnx("User '%s' already exists in NIS passwd", pwd->pw_name); 726 else 727 warn("NIS passwd update"); 728 /* NOTE: we treat NIS-only update errors as non-fatal */ 729 } 730 } else if (mode == M_UPDATE || mode == M_LOCK || mode == M_UNLOCK) { 731 if (edited) { /* Only updated this if required */ 732 rc = chgpwent(a_name->val, pwd); 733 if (rc == -1) { 734 warnx("user '%s' does not exist (NIS?)", pwd->pw_name); 735 return EX_IOERR; 736 } else if (rc != 0) { 737 warn("passwd file update"); 738 return EX_IOERR; 739 } 740 if ( cnf->nispasswd && *cnf->nispasswd=='/') { 741 rc = chgnispwent(cnf->nispasswd, a_name->val, pwd); 742 if (rc == -1) 743 warn("User '%s' not found in NIS passwd", pwd->pw_name); 744 else 745 warn("NIS passwd update"); 746 /* NOTE: NIS-only update errors are not fatal */ 747 } 748 } 749 } 750 751 /* 752 * Ok, user is created or changed - now edit group file 753 */ 754 755 if (mode == M_ADD || getarg(args, 'G') != NULL) { 756 int i, j; 757 /* First remove the user from all group */ 758 SETGRENT(); 759 while ((grp = GETGRENT()) != NULL) { 760 char group[MAXLOGNAME]; 761 if (grp->gr_mem == NULL) 762 continue; 763 for (i = 0; grp->gr_mem[i] != NULL; i++) { 764 if (strcmp(grp->gr_mem[i] , pwd->pw_name) != 0) 765 continue; 766 for (j = i; grp->gr_mem[j] != NULL ; j++) 767 grp->gr_mem[j] = grp->gr_mem[j+1]; 768 strlcpy(group, grp->gr_name, MAXLOGNAME); 769 chggrent(group, grp); 770 } 771 } 772 ENDGRENT(); 773 774 /* now add to group where needed */ 775 for (i = 0; cnf->groups[i] != NULL; i++) { 776 grp = GETGRNAM(cnf->groups[i]); 777 grp = gr_add(grp, pwd->pw_name); 778 /* 779 * grp can only be NULL in 2 cases: 780 * - the new member is already a member 781 * - a problem with memory occurs 782 * in both cases we want to skip now. 783 */ 784 if (grp == NULL) 785 continue; 786 chggrent(cnf->groups[i], grp); 787 free(grp); 788 } 789 } 790 791 792 /* go get a current version of pwd */ 793 pwd = GETPWNAM(a_name->val); 794 if (pwd == NULL) { 795 /* This will fail when we rename, so special case that */ 796 if (mode == M_UPDATE && (arg = getarg(args, 'l')) != NULL) { 797 a_name->val = arg->val; /* update new name */ 798 pwd = GETPWNAM(a_name->val); /* refetch renamed rec */ 799 } 800 } 801 if (pwd == NULL) /* can't go on without this */ 802 errx(EX_NOUSER, "user '%s' disappeared during update", a_name->val); 803 804 grp = GETGRGID(pwd->pw_gid); 805 pw_log(cnf, mode, W_USER, "%s(%ld):%s(%ld):%s:%s:%s", 806 pwd->pw_name, (long) pwd->pw_uid, 807 grp ? grp->gr_name : "unknown", (long) (grp ? grp->gr_gid : -1), 808 pwd->pw_gecos, pwd->pw_dir, pwd->pw_shell); 809 810 /* 811 * If adding, let's touch and chown the user's mail file. This is not 812 * strictly necessary under BSD with a 0755 maildir but it also 813 * doesn't hurt anything to create the empty mailfile 814 */ 815 if (mode == M_ADD) { 816 if (!PWALTDIR()) { 817 sprintf(line, "%s/%s", _PATH_MAILDIR, pwd->pw_name); 818 close(open(line, O_RDWR | O_CREAT, 0600)); /* Preserve contents & 819 * mtime */ 820 chown(line, pwd->pw_uid, pwd->pw_gid); 821 } 822 } 823 824 /* 825 * Let's create and populate the user's home directory. Note 826 * that this also `works' for editing users if -m is used, but 827 * existing files will *not* be overwritten. 828 */ 829 if (!PWALTDIR() && getarg(args, 'm') != NULL && pwd->pw_dir && *pwd->pw_dir == '/' && pwd->pw_dir[1]) { 830 copymkdir(pwd->pw_dir, cnf->dotdir, cnf->homemode, pwd->pw_uid, pwd->pw_gid); 831 pw_log(cnf, mode, W_USER, "%s(%ld) home %s made", 832 pwd->pw_name, (long) pwd->pw_uid, pwd->pw_dir); 833 } 834 835 836 /* 837 * Finally, send mail to the new user as well, if we are asked to 838 */ 839 if (mode == M_ADD && !PWALTDIR() && cnf->newmail && *cnf->newmail && (fp = fopen(cnf->newmail, "r")) != NULL) { 840 FILE *pfp = popen(_PATH_SENDMAIL " -t", "w"); 841 842 if (pfp == NULL) 843 warn("sendmail"); 844 else { 845 fprintf(pfp, "From: root\n" "To: %s\n" "Subject: Welcome!\n\n", pwd->pw_name); 846 while (fgets(line, sizeof(line), fp) != NULL) { 847 /* Do substitutions? */ 848 fputs(line, pfp); 849 } 850 pclose(pfp); 851 pw_log(cnf, mode, W_USER, "%s(%ld) new user mail sent", 852 pwd->pw_name, (long) pwd->pw_uid); 853 } 854 fclose(fp); 855 } 856 857 return EXIT_SUCCESS; 858} 859 860 861static uid_t 862pw_uidpolicy(struct userconf * cnf, struct cargs * args) 863{ 864 struct passwd *pwd; 865 uid_t uid = (uid_t) - 1; 866 struct carg *a_uid = getarg(args, 'u'); 867 868 /* 869 * Check the given uid, if any 870 */ 871 if (a_uid != NULL) { 872 uid = (uid_t) atol(a_uid->val); 873 874 if ((pwd = GETPWUID(uid)) != NULL && getarg(args, 'o') == NULL) 875 errx(EX_DATAERR, "uid `%ld' has already been allocated", (long) pwd->pw_uid); 876 } else { 877 struct bitmap bm; 878 879 /* 880 * We need to allocate the next available uid under one of 881 * two policies a) Grab the first unused uid b) Grab the 882 * highest possible unused uid 883 */ 884 if (cnf->min_uid >= cnf->max_uid) { /* Sanity 885 * claus^H^H^H^Hheck */ 886 cnf->min_uid = 1000; 887 cnf->max_uid = 32000; 888 } 889 bm = bm_alloc(cnf->max_uid - cnf->min_uid + 1); 890 891 /* 892 * Now, let's fill the bitmap from the password file 893 */ 894 SETPWENT(); 895 while ((pwd = GETPWENT()) != NULL) 896 if (pwd->pw_uid >= (uid_t) cnf->min_uid && pwd->pw_uid <= (uid_t) cnf->max_uid) 897 bm_setbit(&bm, pwd->pw_uid - cnf->min_uid); 898 ENDPWENT(); 899 900 /* 901 * Then apply the policy, with fallback to reuse if necessary 902 */ 903 if (cnf->reuse_uids || (uid = (uid_t) (bm_lastset(&bm) + cnf->min_uid + 1)) > cnf->max_uid) 904 uid = (uid_t) (bm_firstunset(&bm) + cnf->min_uid); 905 906 /* 907 * Another sanity check 908 */ 909 if (uid < cnf->min_uid || uid > cnf->max_uid) 910 errx(EX_SOFTWARE, "unable to allocate a new uid - range fully used"); 911 bm_dealloc(&bm); 912 } 913 return uid; 914} 915 916 917static uid_t 918pw_gidpolicy(struct userconf * cnf, struct cargs * args, char *nam, gid_t prefer) 919{ 920 struct group *grp; 921 gid_t gid = (uid_t) - 1; 922 struct carg *a_gid = getarg(args, 'g'); 923 924 /* 925 * If no arg given, see if default can help out 926 */ 927 if (a_gid == NULL && cnf->default_group && *cnf->default_group) 928 a_gid = addarg(args, 'g', cnf->default_group); 929 930 /* 931 * Check the given gid, if any 932 */ 933 SETGRENT(); 934 if (a_gid != NULL) { 935 if ((grp = GETGRNAM(a_gid->val)) == NULL) { 936 gid = (gid_t) atol(a_gid->val); 937 if ((gid == 0 && !isdigit((unsigned char)*a_gid->val)) || (grp = GETGRGID(gid)) == NULL) 938 errx(EX_NOUSER, "group `%s' is not defined", a_gid->val); 939 } 940 gid = grp->gr_gid; 941 } else if ((grp = GETGRNAM(nam)) != NULL && 942 (grp->gr_mem == NULL || grp->gr_mem[0] == NULL)) { 943 gid = grp->gr_gid; /* Already created? Use it anyway... */ 944 } else { 945 struct cargs grpargs; 946 char tmp[32]; 947 948 LIST_INIT(&grpargs); 949 addarg(&grpargs, 'n', nam); 950 951 /* 952 * We need to auto-create a group with the user's name. We 953 * can send all the appropriate output to our sister routine 954 * bit first see if we can create a group with gid==uid so we 955 * can keep the user and group ids in sync. We purposely do 956 * NOT check the gid range if we can force the sync. If the 957 * user's name dups an existing group, then the group add 958 * function will happily handle that case for us and exit. 959 */ 960 if (GETGRGID(prefer) == NULL) { 961 sprintf(tmp, "%lu", (unsigned long) prefer); 962 addarg(&grpargs, 'g', tmp); 963 } 964 if (getarg(args, 'N')) 965 { 966 addarg(&grpargs, 'N', NULL); 967 addarg(&grpargs, 'q', NULL); 968 gid = pw_group(cnf, M_NEXT, &grpargs); 969 } 970 else 971 { 972 pw_group(cnf, M_ADD, &grpargs); 973 if ((grp = GETGRNAM(nam)) != NULL) 974 gid = grp->gr_gid; 975 } 976 a_gid = LIST_FIRST(&grpargs); 977 while (a_gid != NULL) { 978 struct carg *t = LIST_NEXT(a_gid, list); 979 LIST_REMOVE(a_gid, list); 980 a_gid = t; 981 } 982 } 983 ENDGRENT(); 984 return gid; 985} 986 987 988static time_t 989pw_pwdpolicy(struct userconf * cnf, struct cargs * args) 990{ 991 time_t result = 0; 992 time_t now = time(NULL); 993 struct carg *arg = getarg(args, 'p'); 994 995 if (arg != NULL) { 996 if ((result = parse_date(now, arg->val)) == now) 997 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 998 } else if (cnf->password_days > 0) 999 result = now + ((long) cnf->password_days * 86400L); 1000 return result; 1001} 1002 1003 1004static time_t 1005pw_exppolicy(struct userconf * cnf, struct cargs * args) 1006{ 1007 time_t result = 0; 1008 time_t now = time(NULL); 1009 struct carg *arg = getarg(args, 'e'); 1010 1011 if (arg != NULL) { 1012 if ((result = parse_date(now, arg->val)) == now) 1013 errx(EX_DATAERR, "invalid date/time `%s'", arg->val); 1014 } else if (cnf->expire_days > 0) 1015 result = now + ((long) cnf->expire_days * 86400L); 1016 return result; 1017} 1018 1019 1020static char * 1021pw_homepolicy(struct userconf * cnf, struct cargs * args, char const * user) 1022{ 1023 struct carg *arg = getarg(args, 'd'); 1024 1025 if (arg) 1026 return arg->val; 1027 else { 1028 static char home[128]; 1029 1030 if (cnf->home == NULL || *cnf->home == '\0') 1031 errx(EX_CONFIG, "no base home directory set"); 1032 sprintf(home, "%s/%s", cnf->home, user); 1033 return home; 1034 } 1035} 1036 1037static char * 1038shell_path(char const * path, char *shells[], char *sh) 1039{ 1040 if (sh != NULL && (*sh == '/' || *sh == '\0')) 1041 return sh; /* specified full path or forced none */ 1042 else { 1043 char *p; 1044 char paths[_UC_MAXLINE]; 1045 1046 /* 1047 * We need to search paths 1048 */ 1049 strlcpy(paths, path, sizeof(paths)); 1050 for (p = strtok(paths, ": \t\r\n"); p != NULL; p = strtok(NULL, ": \t\r\n")) { 1051 int i; 1052 static char shellpath[256]; 1053 1054 if (sh != NULL) { 1055 sprintf(shellpath, "%s/%s", p, sh); 1056 if (access(shellpath, X_OK) == 0) 1057 return shellpath; 1058 } else 1059 for (i = 0; i < _UC_MAXSHELLS && shells[i] != NULL; i++) { 1060 sprintf(shellpath, "%s/%s", p, shells[i]); 1061 if (access(shellpath, X_OK) == 0) 1062 return shellpath; 1063 } 1064 } 1065 if (sh == NULL) 1066 errx(EX_OSFILE, "can't find shell `%s' in shell paths", sh); 1067 errx(EX_CONFIG, "no default shell available or defined"); 1068 return NULL; 1069 } 1070} 1071 1072 1073static char * 1074pw_shellpolicy(struct userconf * cnf, struct cargs * args, char *newshell) 1075{ 1076 char *sh = newshell; 1077 struct carg *arg = getarg(args, 's'); 1078 1079 if (newshell == NULL && arg != NULL) 1080 sh = arg->val; 1081 return shell_path(cnf->shelldir, cnf->shells, sh ? sh : cnf->shell_default); 1082} 1083 1084#define SALTSIZE 32 1085 1086static char const chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ./"; 1087 1088char * 1089pw_pwcrypt(char *password) 1090{ 1091 int i; 1092 char salt[SALTSIZE + 1]; 1093 char *cryptpw; 1094 1095 static char buf[256]; 1096 1097 /* 1098 * Calculate a salt value 1099 */ 1100 for (i = 0; i < SALTSIZE; i++) 1101 salt[i] = chars[arc4random_uniform(sizeof(chars) - 1)]; 1102 salt[SALTSIZE] = '\0'; 1103 1104 cryptpw = crypt(password, salt); 1105 if (cryptpw == NULL) 1106 errx(EX_CONFIG, "crypt(3) failure"); 1107 return strcpy(buf, cryptpw); 1108} 1109 1110 1111static char * 1112pw_password(struct userconf * cnf, struct cargs * args, char const * user) 1113{ 1114 int i, l; 1115 char pwbuf[32]; 1116 1117 switch (cnf->default_password) { 1118 case -1: /* Random password */ 1119 l = (arc4random() % 8 + 8); /* 8 - 16 chars */ 1120 for (i = 0; i < l; i++) 1121 pwbuf[i] = chars[arc4random_uniform(sizeof(chars)-1)]; 1122 pwbuf[i] = '\0'; 1123 1124 /* 1125 * We give this information back to the user 1126 */ 1127 if (getarg(args, 'h') == NULL && getarg(args, 'H') == NULL && 1128 getarg(args, 'N') == NULL) { 1129 if (isatty(STDOUT_FILENO)) 1130 printf("Password for '%s' is: ", user); 1131 printf("%s\n", pwbuf); 1132 fflush(stdout); 1133 } 1134 break; 1135 1136 case -2: /* No password at all! */ 1137 return ""; 1138 1139 case 0: /* No login - default */ 1140 default: 1141 return "*"; 1142 1143 case 1: /* user's name */ 1144 strlcpy(pwbuf, user, sizeof(pwbuf)); 1145 break; 1146 } 1147 return pw_pwcrypt(pwbuf); 1148} 1149 1150 1151static int 1152print_user(struct passwd * pwd, int pretty, int v7) 1153{ 1154 if (!pretty) { 1155 char *buf; 1156 1157 if (!v7) 1158 pwd->pw_passwd = (pwd->pw_passwd == NULL) ? "" : "*"; 1159 1160 buf = v7 ? pw_make_v7(pwd) : pw_make(pwd); 1161 printf("%s\n", buf); 1162 free(buf); 1163 } else { 1164 int j; 1165 char *p; 1166 struct group *grp = GETGRGID(pwd->pw_gid); 1167 char uname[60] = "User &", office[60] = "[None]", 1168 wphone[60] = "[None]", hphone[60] = "[None]"; 1169 char acexpire[32] = "[None]", pwexpire[32] = "[None]"; 1170 struct tm * tptr; 1171 1172 if ((p = strtok(pwd->pw_gecos, ",")) != NULL) { 1173 strlcpy(uname, p, sizeof(uname)); 1174 if ((p = strtok(NULL, ",")) != NULL) { 1175 strlcpy(office, p, sizeof(office)); 1176 if ((p = strtok(NULL, ",")) != NULL) { 1177 strlcpy(wphone, p, sizeof(wphone)); 1178 if ((p = strtok(NULL, "")) != NULL) { 1179 strlcpy(hphone, p, 1180 sizeof(hphone)); 1181 } 1182 } 1183 } 1184 } 1185 /* 1186 * Handle '&' in gecos field 1187 */ 1188 if ((p = strchr(uname, '&')) != NULL) { 1189 int l = strlen(pwd->pw_name); 1190 int m = strlen(p); 1191 1192 memmove(p + l, p + 1, m); 1193 memmove(p, pwd->pw_name, l); 1194 *p = (char) toupper((unsigned char)*p); 1195 } 1196 if (pwd->pw_expire > (time_t)0 && (tptr = localtime(&pwd->pw_expire)) != NULL) 1197 strftime(acexpire, sizeof acexpire, "%c", tptr); 1198 if (pwd->pw_change > (time_t)0 && (tptr = localtime(&pwd->pw_change)) != NULL) 1199 strftime(pwexpire, sizeof pwexpire, "%c", tptr); 1200 printf("Login Name: %-15s #%-12ld Group: %-15s #%ld\n" 1201 " Full Name: %s\n" 1202 " Home: %-26.26s Class: %s\n" 1203 " Shell: %-26.26s Office: %s\n" 1204 "Work Phone: %-26.26s Home Phone: %s\n" 1205 "Acc Expire: %-26.26s Pwd Expire: %s\n", 1206 pwd->pw_name, (long) pwd->pw_uid, 1207 grp ? grp->gr_name : "(invalid)", (long) pwd->pw_gid, 1208 uname, pwd->pw_dir, pwd->pw_class, 1209 pwd->pw_shell, office, wphone, hphone, 1210 acexpire, pwexpire); 1211 SETGRENT(); 1212 j = 0; 1213 while ((grp=GETGRENT()) != NULL) 1214 { 1215 int i = 0; 1216 if (grp->gr_mem != NULL) { 1217 while (grp->gr_mem[i] != NULL) 1218 { 1219 if (strcmp(grp->gr_mem[i], pwd->pw_name)==0) 1220 { 1221 printf(j++ == 0 ? " Groups: %s" : ",%s", grp->gr_name); 1222 break; 1223 } 1224 ++i; 1225 } 1226 } 1227 } 1228 ENDGRENT(); 1229 printf("%s", j ? "\n" : ""); 1230 } 1231 return EXIT_SUCCESS; 1232} 1233 1234char * 1235pw_checkname(u_char *name, int gecos) 1236{ 1237 char showch[8]; 1238 u_char const *badchars, *ch, *showtype; 1239 int reject; 1240 1241 ch = name; 1242 reject = 0; 1243 if (gecos) { 1244 /* See if the name is valid as a gecos (comment) field. */ 1245 badchars = ":!@"; 1246 showtype = "gecos field"; 1247 } else { 1248 /* See if the name is valid as a userid or group. */ 1249 badchars = " ,\t:+&#%$^()!@~*?<>=|\\/\""; 1250 showtype = "userid/group name"; 1251 /* Userids and groups can not have a leading '-'. */ 1252 if (*ch == '-') 1253 reject = 1; 1254 } 1255 if (!reject) { 1256 while (*ch) { 1257 if (strchr(badchars, *ch) != NULL || *ch < ' ' || 1258 *ch == 127) { 1259 reject = 1; 1260 break; 1261 } 1262 /* 8-bit characters are only allowed in GECOS fields */ 1263 if (!gecos && (*ch & 0x80)) { 1264 reject = 1; 1265 break; 1266 } 1267 ch++; 1268 } 1269 } 1270 /* 1271 * A `$' is allowed as the final character for userids and groups, 1272 * mainly for the benefit of samba. 1273 */ 1274 if (reject && !gecos) { 1275 if (*ch == '$' && *(ch + 1) == '\0') { 1276 reject = 0; 1277 ch++; 1278 } 1279 } 1280 if (reject) { 1281 snprintf(showch, sizeof(showch), (*ch >= ' ' && *ch < 127) 1282 ? "`%c'" : "0x%02x", *ch); 1283 errx(EX_DATAERR, "invalid character %s at position %td in %s", 1284 showch, (ch - name), showtype); 1285 } 1286 if (!gecos && (ch - name) > LOGNAMESIZE) 1287 errx(EX_DATAERR, "name too long `%s' (max is %d)", name, 1288 LOGNAMESIZE); 1289 return (char *)name; 1290} 1291 1292 1293static void 1294rmat(uid_t uid) 1295{ 1296 DIR *d = opendir("/var/at/jobs"); 1297 1298 if (d != NULL) { 1299 struct dirent *e; 1300 1301 while ((e = readdir(d)) != NULL) { 1302 struct stat st; 1303 1304 if (strncmp(e->d_name, ".lock", 5) != 0 && 1305 stat(e->d_name, &st) == 0 && 1306 !S_ISDIR(st.st_mode) && 1307 st.st_uid == uid) { 1308 char tmp[MAXPATHLEN]; 1309 1310 sprintf(tmp, "/usr/bin/atrm %s", e->d_name); 1311 system(tmp); 1312 } 1313 } 1314 closedir(d); 1315 } 1316} 1317 1318static void 1319rmopie(char const * name) 1320{ 1321 static const char etcopie[] = "/etc/opiekeys"; 1322 FILE *fp = fopen(etcopie, "r+"); 1323 1324 if (fp != NULL) { 1325 char tmp[1024]; 1326 off_t atofs = 0; 1327 int length = strlen(name); 1328 1329 while (fgets(tmp, sizeof tmp, fp) != NULL) { 1330 if (strncmp(name, tmp, length) == 0 && tmp[length]==' ') { 1331 if (fseek(fp, atofs, SEEK_SET) == 0) { 1332 fwrite("#", 1, 1, fp); /* Comment username out */ 1333 } 1334 break; 1335 } 1336 atofs = ftell(fp); 1337 } 1338 /* 1339 * If we got an error of any sort, don't update! 1340 */ 1341 fclose(fp); 1342 } 1343} 1344 1345