su.c revision 1.64
1 /* $NetBSD: su.c,v 1.64 2005/01/10 03:11:50 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 __COPYRIGHT( 35 "@(#) Copyright (c) 1988 The Regents of the University of California.\n\ 36 All rights reserved.\n"); 37 #endif /* not lint */ 38 39 #ifndef lint 40 #if 0 41 static char sccsid[] = "@(#)su.c 8.3 (Berkeley) 4/2/94";*/ 42 #else 43 __RCSID("$NetBSD: su.c,v 1.64 2005/01/10 03:11:50 christos Exp $"); 44 #endif 45 #endif /* not lint */ 46 47 #include <sys/param.h> 48 #include <sys/time.h> 49 #include <sys/resource.h> 50 #include <err.h> 51 #include <errno.h> 52 #include <grp.h> 53 #include <paths.h> 54 #include <pwd.h> 55 #include <stdio.h> 56 #ifdef SKEY 57 #include <skey.h> 58 #endif 59 #include <stdlib.h> 60 #include <string.h> 61 #include <syslog.h> 62 #include <time.h> 63 #include <tzfile.h> 64 #include <unistd.h> 65 66 #ifdef LOGIN_CAP 67 #include <login_cap.h> 68 #endif 69 70 #ifdef KERBEROS 71 #include <des.h> 72 #include <krb.h> 73 #include <netdb.h> 74 75 static int kerberos(char *, char *, int); 76 static int koktologin(char *, char *, char *); 77 78 #endif 79 80 #ifdef KERBEROS5 81 #include <krb5.h> 82 83 static int kerberos5(char *, char *, int); 84 85 #endif 86 87 #if defined(KERBEROS) || defined(KERBEROS5) 88 89 #define ARGSTRX "-Kdflm" 90 91 int use_kerberos = 1; 92 93 #else 94 #define ARGSTRX "-dflm" 95 #endif 96 97 #ifndef SU_GROUP 98 #define SU_GROUP "wheel" 99 #endif 100 101 #ifdef LOGIN_CAP 102 #define ARGSTR ARGSTRX "c:" 103 #else 104 #define ARGSTR ARGSTRX 105 #endif 106 107 static int chshell(const char *); 108 static char *ontty(void); 109 static int check_ingroup(int, const char *, const char *, int); 110 111 int main(int, char **); 112 113 int 114 main(int argc, char **argv) 115 { 116 extern char **environ; 117 struct passwd *pwd; 118 char *p; 119 #ifdef BSD4_4 120 struct timeval tp; 121 #endif 122 uid_t ruid; 123 int asme, ch, asthem, fastlogin, prio, gohome; 124 enum { UNSET, YES, NO } iscsh = UNSET; 125 char *user, *shell, *avshell, *username, **np; 126 char *userpass, *class; 127 char shellbuf[MAXPATHLEN], avshellbuf[MAXPATHLEN]; 128 time_t pw_warntime = _PASSWORD_WARNDAYS * SECSPERDAY; 129 #ifdef LOGIN_CAP 130 login_cap_t *lc; 131 #endif 132 133 asme = asthem = fastlogin = 0; 134 gohome = 1; 135 shell = class = NULL; 136 while ((ch = getopt(argc, argv, ARGSTR)) != -1) 137 switch((char)ch) { 138 #if defined(KERBEROS) || defined(KERBEROS5) 139 case 'K': 140 use_kerberos = 0; 141 break; 142 #endif 143 #ifdef LOGIN_CAP 144 case 'c': 145 class = optarg; 146 break; 147 #endif 148 case 'd': 149 asme = 0; 150 asthem = 1; 151 gohome = 0; 152 break; 153 case 'f': 154 fastlogin = 1; 155 break; 156 case '-': 157 case 'l': 158 asme = 0; 159 asthem = 1; 160 break; 161 case 'm': 162 asme = 1; 163 asthem = 0; 164 break; 165 case '?': 166 default: 167 (void)fprintf(stderr, 168 "usage: %s [%s] [login [shell arguments]]\n", 169 getprogname(), ARGSTR); 170 exit(1); 171 } 172 argv += optind; 173 174 /* Lower the priority so su runs faster */ 175 errno = 0; 176 prio = getpriority(PRIO_PROCESS, 0); 177 if (errno) 178 prio = 0; 179 if (prio > -2) 180 (void)setpriority(PRIO_PROCESS, 0, -2); 181 openlog("su", 0, LOG_AUTH); 182 183 /* get current login name and shell */ 184 ruid = getuid(); 185 username = getlogin(); 186 if (username == NULL || (pwd = getpwnam(username)) == NULL || 187 pwd->pw_uid != ruid) 188 pwd = getpwuid(ruid); 189 if (pwd == NULL) 190 errx(1, "who are you?"); 191 username = strdup(pwd->pw_name); 192 userpass = strdup(pwd->pw_passwd); 193 if (username == NULL || userpass == NULL) 194 err(1, "strdup"); 195 196 197 if (asme) { 198 if (pwd->pw_shell && *pwd->pw_shell) { 199 strlcpy(shellbuf, pwd->pw_shell, sizeof(shellbuf)); 200 shell = shellbuf; 201 } else { 202 shell = _PATH_BSHELL; 203 iscsh = NO; 204 } 205 } 206 /* get target login information, default to root */ 207 user = *argv ? *argv : "root"; 208 np = *argv ? argv : argv-1; 209 210 if ((pwd = getpwnam(user)) == NULL) 211 errx(1, "unknown login %s", user); 212 213 #ifdef LOGIN_CAP 214 /* force the usage of specified class */ 215 if (class) { 216 if (ruid) 217 errx(1, "Only root may use -c"); 218 219 pwd->pw_class = class; 220 } 221 if ((lc = login_getclass(pwd->pw_class)) == NULL) 222 errx(1, "Unknown class %s\n", pwd->pw_class); 223 224 pw_warntime = login_getcaptime(lc, "password-warn", 225 _PASSWORD_WARNDAYS * SECSPERDAY, 226 _PASSWORD_WARNDAYS * SECSPERDAY); 227 #endif 228 229 if (ruid 230 #ifdef KERBEROS5 231 && (!use_kerberos || kerberos5(username, user, pwd->pw_uid)) 232 #endif 233 #ifdef KERBEROS 234 && (!use_kerberos || kerberos(username, user, pwd->pw_uid)) 235 #endif 236 ) { 237 char *pass = pwd->pw_passwd; 238 int ok = pwd->pw_uid != 0; 239 240 #ifdef SU_ROOTAUTH 241 /* 242 * Allow those in group rootauth to su to root, by supplying 243 * their own password. 244 */ 245 if (!ok) { 246 if ((ok = check_ingroup(-1, SU_ROOTAUTH, username, 0))) { 247 pass = userpass; 248 user = username; 249 } 250 } 251 #endif 252 /* 253 * Only allow those in group SU_GROUP to su to root, 254 * but only if that group has any members. 255 * If SU_GROUP has no members, allow anyone to su root 256 */ 257 if (!ok) { 258 ok = check_ingroup(-1, SU_GROUP, username, 1); 259 } 260 if (!ok) 261 errx(1, 262 "you are not listed in the correct secondary group (%s) to su %s.", 263 SU_GROUP, user); 264 /* if target requires a password, verify it */ 265 if (*pass) { 266 p = getpass("Password:"); 267 #ifdef SKEY 268 if (strcasecmp(p, "s/key") == 0) { 269 if (skey_haskey(user)) 270 errx(1, "Sorry, you have no s/key."); 271 else { 272 if (skey_authenticate(user)) { 273 goto badlogin; 274 } 275 } 276 277 } else 278 #endif 279 if (strcmp(pass, crypt(p, pass))) { 280 #ifdef SKEY 281 badlogin: 282 #endif 283 fprintf(stderr, "Sorry\n"); 284 syslog(LOG_WARNING, 285 "BAD SU %s to %s%s", username, 286 pwd->pw_name, ontty()); 287 exit(1); 288 } 289 } 290 } 291 292 if (asme) { 293 /* if asme and non-standard target shell, must be root */ 294 if (!chshell(pwd->pw_shell) && ruid) 295 errx(1,"permission denied (shell)."); 296 } else if (pwd->pw_shell && *pwd->pw_shell) { 297 shell = pwd->pw_shell; 298 iscsh = UNSET; 299 } else { 300 shell = _PATH_BSHELL; 301 iscsh = NO; 302 } 303 304 if ((p = strrchr(shell, '/')) != NULL) 305 avshell = p+1; 306 else 307 avshell = shell; 308 309 /* if we're forking a csh, we want to slightly muck the args */ 310 if (iscsh == UNSET) 311 iscsh = strstr(avshell, "csh") ? YES : NO; 312 313 /* set permissions */ 314 #ifdef LOGIN_CAP 315 if (setusercontext(lc, pwd, pwd->pw_uid, 316 (asthem ? (LOGIN_SETPRIORITY | LOGIN_SETUMASK) : 0) | 317 LOGIN_SETRESOURCES | LOGIN_SETGROUP | LOGIN_SETUSER)) 318 err(1, "setting user context"); 319 #else 320 if (setgid(pwd->pw_gid) < 0) 321 err(1, "setgid"); 322 if (initgroups(user, pwd->pw_gid)) 323 errx(1, "initgroups failed"); 324 if (setuid(pwd->pw_uid) < 0) 325 err(1, "setuid"); 326 #endif 327 328 if (!asme) { 329 if (asthem) { 330 p = getenv("TERM"); 331 /* Create an empty environment */ 332 if ((environ = malloc(sizeof(char *))) == NULL) 333 err(1, NULL); 334 environ[0] = NULL; 335 #ifdef LOGIN_CAP 336 if (setusercontext(lc, pwd, pwd->pw_uid, LOGIN_SETPATH)) 337 err(1, "setting user context"); 338 #else 339 (void)setenv("PATH", _PATH_DEFPATH, 1); 340 #endif 341 if (p) 342 (void)setenv("TERM", p, 1); 343 if (gohome && chdir(pwd->pw_dir) < 0) 344 errx(1, "no directory"); 345 } 346 347 if (asthem || pwd->pw_uid) 348 (void)setenv("USER", pwd->pw_name, 1); 349 (void)setenv("HOME", pwd->pw_dir, 1); 350 (void)setenv("SHELL", shell, 1); 351 } 352 (void)setenv("SU_FROM", username, 1); 353 354 if (iscsh == YES) { 355 if (fastlogin) 356 *np-- = "-f"; 357 if (asme) 358 *np-- = "-m"; 359 } else { 360 if (fastlogin) 361 unsetenv("ENV"); 362 } 363 364 if (asthem) { 365 avshellbuf[0] = '-'; 366 (void)strlcpy(avshellbuf+1, avshell, sizeof(avshellbuf) - 1); 367 avshell = avshellbuf; 368 } else if (iscsh == YES) { 369 /* csh strips the first character... */ 370 avshellbuf[0] = '_'; 371 (void)strlcpy(avshellbuf+1, avshell, sizeof(avshellbuf) - 1); 372 avshell = avshellbuf; 373 } 374 *np = avshell; 375 376 #ifdef BSD4_4 377 if (pwd->pw_change || pwd->pw_expire) 378 (void)gettimeofday(&tp, (struct timezone *)NULL); 379 if (pwd->pw_change) { 380 if (tp.tv_sec >= pwd->pw_change) { 381 (void)printf("%s -- %s's password has expired.\n", 382 (ruid ? "Sorry" : "Note"), user); 383 if (ruid != 0) 384 exit(1); 385 } else if (pwd->pw_change - tp.tv_sec < pw_warntime) 386 (void)printf("Warning: %s's password expires on %s", 387 user, ctime(&pwd->pw_change)); 388 } 389 if (pwd->pw_expire) { 390 if (tp.tv_sec >= pwd->pw_expire) { 391 (void)printf("%s -- %s's account has expired.\n", 392 (ruid ? "Sorry" : "Note"), user); 393 if (ruid != 0) 394 exit(1); 395 } else if (pwd->pw_expire - tp.tv_sec < 396 _PASSWORD_WARNDAYS * SECSPERDAY) 397 (void)printf("Warning: %s's account expires on %s", 398 user, ctime(&pwd->pw_expire)); 399 } 400 #endif 401 if (ruid != 0) 402 syslog(LOG_NOTICE, "%s to %s%s", 403 username, pwd->pw_name, ontty()); 404 405 /* Raise our priority back to what we had before */ 406 (void)setpriority(PRIO_PROCESS, 0, prio); 407 408 execv(shell, np); 409 err(1, "%s", shell); 410 /* NOTREACHED */ 411 } 412 413 414 static int 415 chshell(const char *sh) 416 { 417 const char *cp; 418 419 setusershell(); 420 while ((cp = getusershell()) != NULL) 421 if (!strcmp(cp, sh)) 422 return 1; 423 return 0; 424 } 425 426 static char * 427 ontty(void) 428 { 429 char *p; 430 static char buf[MAXPATHLEN + 4]; 431 432 buf[0] = 0; 433 if ((p = ttyname(STDERR_FILENO)) != NULL) 434 (void)snprintf(buf, sizeof buf, " on %s", p); 435 return buf; 436 } 437 438 #ifdef KERBEROS5 439 static int 440 kerberos5(char *username, char *user, int uid) 441 { 442 krb5_error_code ret; 443 krb5_context context; 444 krb5_principal princ = NULL; 445 krb5_ccache ccache, ccache2; 446 char *cc_name; 447 const char *filename; 448 449 ret = krb5_init_context(&context); 450 if (ret) 451 return (1); 452 453 if (strcmp (user, "root") == 0) 454 ret = krb5_make_principal(context, &princ, 455 NULL, username, "root", NULL); 456 else 457 ret = krb5_make_principal(context, &princ, 458 NULL, user, NULL); 459 if (ret) 460 goto fail; 461 if (!krb5_kuserok(context, princ, user) && !uid) { 462 warnx ("kerberos5: not in %s's ACL.", user); 463 goto fail; 464 } 465 ret = krb5_cc_gen_new(context, &krb5_mcc_ops, &ccache); 466 if (ret) 467 goto fail; 468 ret = krb5_verify_user_lrealm(context, princ, ccache, NULL, TRUE, 469 NULL); 470 if (ret) { 471 krb5_cc_destroy(context, ccache); 472 switch (ret) { 473 case KRB5_LIBOS_PWDINTR : 474 break; 475 case KRB5KRB_AP_ERR_BAD_INTEGRITY: 476 case KRB5KRB_AP_ERR_MODIFIED: 477 krb5_warnx(context, "Password incorrect"); 478 break; 479 default : 480 krb5_warn(context, ret, "krb5_verify_user"); 481 break; 482 } 483 goto fail; 484 } 485 ret = krb5_cc_gen_new(context, &krb5_fcc_ops, &ccache2); 486 if (ret) { 487 krb5_cc_destroy(context, ccache); 488 goto fail; 489 } 490 ret = krb5_cc_copy_cache(context, ccache, ccache2); 491 if (ret) { 492 krb5_cc_destroy(context, ccache); 493 krb5_cc_destroy(context, ccache2); 494 goto fail; 495 } 496 497 filename = krb5_cc_get_name(context, ccache2); 498 asprintf(&cc_name, "%s:%s", krb5_cc_get_type(context, ccache2), 499 filename); 500 if (chown (filename, uid, -1) < 0) { 501 warn("chown %s", filename); 502 free(cc_name); 503 krb5_cc_destroy(context, ccache); 504 krb5_cc_destroy(context, ccache2); 505 goto fail; 506 } 507 508 setenv("KRB5CCNAME", cc_name, 1); 509 free(cc_name); 510 krb5_cc_close(context, ccache2); 511 krb5_cc_destroy(context, ccache); 512 return (0); 513 514 fail: 515 if (princ != NULL) 516 krb5_free_principal (context, princ); 517 krb5_free_context (context); 518 return (1); 519 } 520 #endif 521 522 #ifdef KERBEROS 523 static int 524 kerberos(char *username, char *user, int uid) 525 { 526 KTEXT_ST ticket; 527 AUTH_DAT authdata; 528 struct hostent *hp; 529 int kerno; 530 u_long faddr; 531 char lrealm[REALM_SZ], krbtkfile[MAXPATHLEN]; 532 char hostname[MAXHOSTNAMELEN + 1], savehost[MAXHOSTNAMELEN + 1]; 533 534 if (krb_get_lrealm(lrealm, 1) != KSUCCESS) 535 return (1); 536 if (koktologin(username, lrealm, user) && !uid) { 537 warnx("kerberos: not in %s's ACL.", user); 538 return (1); 539 } 540 (void)snprintf(krbtkfile, sizeof krbtkfile, "%s_%s_%d", TKT_ROOT, 541 user, getuid()); 542 543 (void)setenv("KRBTKFILE", krbtkfile, 1); 544 (void)krb_set_tkt_string(krbtkfile); 545 /* 546 * Set real as well as effective ID to 0 for the moment, 547 * to make the kerberos library do the right thing. 548 */ 549 if (setuid(0) < 0) { 550 warn("setuid"); 551 return (1); 552 } 553 554 /* 555 * Little trick here -- if we are su'ing to root, 556 * we need to get a ticket for "xxx.root", where xxx represents 557 * the name of the person su'ing. Otherwise (non-root case), 558 * we need to get a ticket for "yyy.", where yyy represents 559 * the name of the person being su'd to, and the instance is null 560 * 561 * We should have a way to set the ticket lifetime, 562 * with a system default for root. 563 */ 564 { 565 char prompt[128]; 566 char passw[256]; 567 568 (void)snprintf (prompt, sizeof(prompt), 569 "%s's Password: ", 570 krb_unparse_name_long ((uid == 0 ? username : user), 571 (uid == 0 ? "root" : ""), 572 lrealm)); 573 if (des_read_pw_string (passw, sizeof (passw), prompt, 0)) { 574 memset (passw, 0, sizeof (passw)); 575 return (1); 576 } 577 if (strlen(passw) == 0) 578 return (1); /* Empty passwords are not allowed */ 579 580 kerno = krb_get_pw_in_tkt((uid == 0 ? username : user), 581 (uid == 0 ? "root" : ""), lrealm, 582 KRB_TICKET_GRANTING_TICKET, 583 lrealm, 584 DEFAULT_TKT_LIFE, 585 passw); 586 memset (passw, 0, strlen (passw)); 587 } 588 589 if (kerno != KSUCCESS) { 590 if (kerno == KDC_PR_UNKNOWN) { 591 warnx("kerberos: principal unknown: %s.%s@%s", 592 (uid == 0 ? username : user), 593 (uid == 0 ? "root" : ""), lrealm); 594 return (1); 595 } 596 warnx("kerberos: unable to su: %s", krb_err_txt[kerno]); 597 syslog(LOG_WARNING, 598 "BAD Kerberos SU: %s to %s%s: %s", 599 username, user, ontty(), krb_err_txt[kerno]); 600 return (1); 601 } 602 603 if (chown(krbtkfile, uid, -1) < 0) { 604 warn("chown"); 605 (void)unlink(krbtkfile); 606 return (1); 607 } 608 609 (void)setpriority(PRIO_PROCESS, 0, -2); 610 611 if (gethostname(hostname, sizeof(hostname)) == -1) { 612 warn("gethostname"); 613 dest_tkt(); 614 return (1); 615 } 616 hostname[sizeof(hostname) - 1] = '\0'; 617 618 (void)strlcpy(savehost, krb_get_phost(hostname), sizeof(savehost)); 619 savehost[sizeof(savehost) - 1] = '\0'; 620 621 kerno = krb_mk_req(&ticket, "rcmd", savehost, lrealm, 33); 622 623 if (kerno == KDC_PR_UNKNOWN) { 624 warnx("Warning: TGT not verified."); 625 syslog(LOG_WARNING, 626 "%s to %s%s, TGT not verified (%s); %s.%s not registered?", 627 username, user, ontty(), krb_err_txt[kerno], 628 "rcmd", savehost); 629 } else if (kerno != KSUCCESS) { 630 warnx("Unable to use TGT: %s", krb_err_txt[kerno]); 631 syslog(LOG_WARNING, "failed su: %s to %s%s: %s", 632 username, user, ontty(), krb_err_txt[kerno]); 633 dest_tkt(); 634 return (1); 635 } else { 636 if (!(hp = gethostbyname(hostname))) { 637 warnx("can't get addr of %s", hostname); 638 dest_tkt(); 639 return (1); 640 } 641 memmove((char *)&faddr, (char *)hp->h_addr, sizeof(faddr)); 642 643 if ((kerno = krb_rd_req(&ticket, "rcmd", savehost, faddr, 644 &authdata, "")) != KSUCCESS) { 645 warnx("kerberos: unable to verify rcmd ticket: %s", 646 krb_err_txt[kerno]); 647 syslog(LOG_WARNING, 648 "failed su: %s to %s%s: %s", username, 649 user, ontty(), krb_err_txt[kerno]); 650 dest_tkt(); 651 return (1); 652 } 653 } 654 return (0); 655 } 656 657 static int 658 koktologin(char *name, char *realm, char *toname) 659 { 660 return krb_kuserok(name, 661 strcmp (toname, "root") == 0 ? "root" : "", 662 realm, 663 toname); 664 } 665 #endif 666 667 static int 668 check_ingroup (int gid, const char *gname, const char *user, int ifempty) 669 { 670 struct group *gr; 671 char **g; 672 #ifdef SU_INDIRECT_GROUP 673 char **gr_mem; 674 int n = 0; 675 int i = 0; 676 #endif 677 int ok = 0; 678 679 if (gname == NULL) 680 gr = getgrgid((gid_t) gid); 681 else 682 gr = getgrnam(gname); 683 684 /* 685 * XXX we are relying on the fact that we only set ifempty when 686 * calling to check for SU_GROUP and that is the only time a 687 * missing group is acceptable. 688 */ 689 if (gr == NULL) 690 return ifempty; 691 if (!*gr->gr_mem) /* empty */ 692 return ifempty; 693 694 /* 695 * Ok, first see if user is in gr_mem 696 */ 697 for (g = gr->gr_mem; *g; ++g) { 698 if (strcmp(*g, user) == 0) 699 return 1; /* ok */ 700 #ifdef SU_INDIRECT_GROUP 701 ++n; /* count them */ 702 #endif 703 } 704 #ifdef SU_INDIRECT_GROUP 705 /* 706 * No. 707 * Now we need to duplicate the gr_mem list, and recurse for 708 * each member to see if it is a group, and if so whether user is 709 * in it. 710 */ 711 gr_mem = malloc((n + 1) * sizeof (char *)); 712 for (g = gr->gr_mem, i = 0; *g; ++g) { 713 gr_mem[i] = strdup(*g); 714 if (!gr_mem[i]) 715 err(1, "strdup"); 716 i++; 717 } 718 gr_mem[i++] = NULL; 719 720 for (g = gr_mem; ok == 0 && *g; ++g) { 721 /* 722 * If we get this far we don't accept empty/missing groups. 723 */ 724 ok = check_ingroup(-1, *g, user, 0); 725 } 726 for (g = gr_mem; *g; ++g) { 727 free(*g); 728 } 729 free(gr_mem); 730 #endif 731 return ok; 732 } 733
Indexes created Fri Sep 26 20:09:58 GMT 2025