login.c revision 1.22
1 /* $NetBSD: login.c,v 1.22 1997/06/29 02:38:25 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994 5 * The Regents of the University of California. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef lint 37 static char copyright[] = 38 "@(#) Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94"; 45 #endif 46 static char rcsid[] = "$NetBSD: login.c,v 1.22 1997/06/29 02:38:25 lukem Exp $"; 47 #endif /* not lint */ 48 49 /* 50 * login [ name ] 51 * login -h hostname (for telnetd, etc.) 52 * login -f name (for pre-authenticated login: datakit, xterm, etc.) 53 */ 54 55 #include <sys/param.h> 56 #include <sys/stat.h> 57 #include <sys/time.h> 58 #include <sys/resource.h> 59 #include <sys/file.h> 60 61 #include <err.h> 62 #include <errno.h> 63 #include <grp.h> 64 #include <pwd.h> 65 #include <setjmp.h> 66 #include <signal.h> 67 #include <stdio.h> 68 #include <skey.h> 69 #include <stdlib.h> 70 #include <string.h> 71 #include <syslog.h> 72 #include <ttyent.h> 73 #include <tzfile.h> 74 #include <unistd.h> 75 #include <utmp.h> 76 #include <util.h> 77 78 #include "pathnames.h" 79 80 void badlogin __P((char *)); 81 void checknologin __P((void)); 82 void dolastlog __P((int)); 83 void getloginname __P((void)); 84 void motd __P((void)); 85 int rootterm __P((char *)); 86 void sigint __P((int)); 87 void sleepexit __P((int)); 88 char *stypeof __P((char *)); 89 void timedout __P((int)); 90 int pwcheck __P((char *, char *, char *, char *)); 91 #if defined(KERBEROS) || defined(KERBEROS5) 92 int klogin __P((struct passwd *, char *, char *, char *)); 93 void kdestroy __P((void)); 94 void dofork __P((void)); 95 #endif 96 97 extern void login __P((struct utmp *)); 98 99 #define TTYGRPNAME "tty" /* name of group to own ttys */ 100 101 /* 102 * This bounds the time given to login. Not a define so it can 103 * be patched on machines where it's too small. 104 */ 105 u_int timeout = 300; 106 107 #if defined(KERBEROS) || defined(KERBEROS5) 108 int notickets = 1; 109 char *instance; 110 char *krbtkfile_env; 111 int authok; 112 #endif 113 114 struct passwd *pwd; 115 int failures; 116 char term[64], *envinit[1], *hostname, *username, *tty; 117 #ifdef SKEY 118 int used_skey = 0; 119 int require_skey = 0; 120 char skeypw[] = "s/key"; 121 #endif 122 123 int 124 main(argc, argv) 125 int argc; 126 char *argv[]; 127 { 128 extern char **environ; 129 struct group *gr; 130 struct stat st; 131 struct timeval tp; 132 struct utmp utmp; 133 int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval; 134 uid_t uid; 135 char *domain, *p, *salt, *ttyn, *pwprompt; 136 char tbuf[MAXPATHLEN + 2], tname[sizeof(_PATH_TTY) + 10]; 137 char localhost[MAXHOSTNAMELEN]; 138 139 tbuf[0] = '\0'; 140 rval = 0; 141 pwprompt = NULL; 142 143 (void)signal(SIGALRM, timedout); 144 (void)alarm(timeout); 145 (void)signal(SIGQUIT, SIG_IGN); 146 (void)signal(SIGINT, SIG_IGN); 147 (void)setpriority(PRIO_PROCESS, 0, 0); 148 149 openlog("login", LOG_ODELAY, LOG_AUTH); 150 151 /* 152 * -p is used by getty to tell login not to destroy the environment 153 * -f is used to skip a second login authentication 154 * -h is used by other servers to pass the name of the remote 155 * host to login so that it may be placed in utmp and wtmp 156 * -s is used to force use of S/Key or equivalent. 157 */ 158 domain = NULL; 159 if (gethostname(localhost, sizeof(localhost)) < 0) 160 syslog(LOG_ERR, "couldn't get local hostname: %m"); 161 else 162 domain = strchr(localhost, '.'); 163 164 fflag = hflag = pflag = 0; 165 uid = getuid(); 166 while ((ch = getopt(argc, argv, "fh:ps")) != EOF) 167 switch (ch) { 168 case 'f': 169 fflag = 1; 170 break; 171 case 'h': 172 if (uid) 173 errx(1, "-h option: %s", strerror(EPERM)); 174 hflag = 1; 175 if (domain && (p = strchr(optarg, '.')) && 176 strcasecmp(p, domain) == 0) 177 *p = 0; 178 hostname = optarg; 179 break; 180 case 'p': 181 pflag = 1; 182 break; 183 case 's': 184 #ifdef SKEY 185 /* 186 * If -s given twice, use S/Key or no login 187 * otherwise just insist on S/Key if user has one. 188 */ 189 require_skey++; 190 #endif 191 break; 192 case '?': 193 default: 194 if (!uid) 195 syslog(LOG_ERR, "invalid flag %c", ch); 196 (void)fprintf(stderr, 197 "usage: login [-fp] [-h hostname] [username]\n"); 198 exit(1); 199 } 200 argc -= optind; 201 argv += optind; 202 203 if (*argv) { 204 username = *argv; 205 ask = 0; 206 } else 207 ask = 1; 208 209 for (cnt = getdtablesize(); cnt > 2; cnt--) 210 (void)close(cnt); 211 212 ttyn = ttyname(STDIN_FILENO); 213 if (ttyn == NULL || *ttyn == '\0') { 214 (void)snprintf(tname, sizeof(tname), "%s??", _PATH_TTY); 215 ttyn = tname; 216 } 217 if ((tty = strrchr(ttyn, '/'))) 218 ++tty; 219 else 220 tty = ttyn; 221 222 for (cnt = 0;; ask = 1) { 223 #ifdef SKEY 224 used_skey = 0; 225 #endif 226 #if defined(KERBEROS) || defined(KERBEROS5) 227 kdestroy(); 228 #endif 229 if (ask) { 230 fflag = 0; 231 getloginname(); 232 } 233 rootlogin = 0; 234 #ifdef KERBEROS 235 if ((instance = strchr(username, '.')) != NULL) { 236 if (strncmp(instance, ".root", 5) == 0) 237 rootlogin = 1; 238 *instance++ = '\0'; 239 } else 240 instance = ""; 241 #endif 242 #ifdef KERBEROS5 243 if ((instance = strchr(username, '/')) != NULL) { 244 if (strncmp(instance, "/root", 5) == 0) 245 rootlogin = 1; 246 *instance++ = '\0'; 247 } else 248 instance = ""; 249 #endif 250 if (strlen(username) > MAXLOGNAME) 251 username[MAXLOGNAME] = '\0'; 252 253 /* 254 * Note if trying multiple user names; log failures for 255 * previous user name, but don't bother logging one failure 256 * for nonexistent name (mistyped username). 257 */ 258 if (failures && strcmp(tbuf, username)) { 259 if (failures > (pwd ? 0 : 1)) 260 badlogin(tbuf); 261 failures = 0; 262 } 263 (void)strncpy(tbuf, username, sizeof(tbuf) - 1); 264 265 if ((pwd = getpwnam(username))) 266 salt = pwd->pw_passwd; 267 else 268 salt = "xx"; 269 270 /* 271 * if we have a valid account name, and it doesn't have a 272 * password, or the -f option was specified and the caller 273 * is root or the caller isn't changing their uid, don't 274 * authenticate. 275 */ 276 if (pwd) { 277 if (pwd->pw_uid == 0) 278 rootlogin = 1; 279 280 if (fflag && (uid == 0 || uid == pwd->pw_uid)) { 281 /* already authenticated */ 282 break; 283 } else if (pwd->pw_passwd[0] == '\0') { 284 /* pretend password okay */ 285 rval = 0; 286 goto ttycheck; 287 } 288 } 289 290 fflag = 0; 291 292 (void)setpriority(PRIO_PROCESS, 0, -4); 293 294 #ifdef SKEY 295 p = NULL; 296 pwprompt = "Password:"; 297 298 if (require_skey > 1) /* -s -s */ 299 p = skeypw; 300 else if (skey_haskey(username) == 0) { 301 if (require_skey > 0) /* -s */ 302 p = skeypw; 303 else { 304 extern char *skey_keyinfo(); 305 static char skprompt[80]; 306 char *skinfo = skey_keyinfo(username); 307 308 (void)snprintf(skprompt, sizeof(skprompt)-1, 309 "Password [%s]:", skinfo); 310 pwprompt = skprompt; 311 } 312 } 313 if (p == NULL) 314 #endif 315 p = getpass(pwprompt); 316 317 if (pwd) { 318 #if defined(KERBEROS) || defined(KERBEROS5) 319 rval = klogin(pwd, instance, localhost, p); 320 if (rval != 0 && rootlogin && pwd->pw_uid != 0) 321 rootlogin = 0; 322 if (rval == 0) 323 authok = 1; 324 else if (rval == 1) { 325 if (pwd->pw_uid != 0) 326 rootlogin = 0; 327 rval = pwcheck(username, p, salt, pwd->pw_passwd); 328 } 329 #else 330 rval = pwcheck(username, p, salt, pwd->pw_passwd); 331 #endif 332 } 333 #ifdef SKEY 334 if (used_skey == 0 && p != skeypw) 335 #endif 336 memset(p, 0, strlen(p)); 337 338 (void)setpriority(PRIO_PROCESS, 0, 0); 339 340 ttycheck: 341 /* 342 * If trying to log in as root without Kerberos, 343 * but with insecure terminal, refuse the login attempt. 344 */ 345 #if defined(KERBEROS) || defined(KERBEROS5) 346 if (authok == 0) 347 #endif 348 if (pwd && !rval && rootlogin && !rootterm(tty)) { 349 (void)fprintf(stderr, 350 "%s login refused on this terminal.\n", 351 pwd->pw_name); 352 if (hostname) 353 syslog(LOG_NOTICE, 354 "LOGIN %s REFUSED FROM %s ON TTY %s", 355 pwd->pw_name, hostname, tty); 356 else 357 syslog(LOG_NOTICE, 358 "LOGIN %s REFUSED ON TTY %s", 359 pwd->pw_name, tty); 360 continue; 361 } 362 363 if (pwd && !rval) 364 break; 365 366 (void)printf("Login incorrect\n"); 367 failures++; 368 /* we allow 10 tries, but after 3 we start backing off */ 369 if (++cnt > 3) { 370 if (cnt >= 10) { 371 badlogin(username); 372 sleepexit(1); 373 } 374 sleep((u_int)((cnt - 3) * 5)); 375 } 376 } 377 378 /* committed to login -- turn off timeout */ 379 (void)alarm((u_int)0); 380 381 endpwent(); 382 383 /* if user not super-user, check for disabled logins */ 384 if (!rootlogin) 385 checknologin(); 386 387 if (chdir(pwd->pw_dir) < 0) { 388 (void)printf("No home directory %s!\n", pwd->pw_dir); 389 if (chdir("/")) 390 exit(0); 391 pwd->pw_dir = "/"; 392 (void)printf("Logging in with home = \"/\".\n"); 393 } 394 395 quietlog = access(_PATH_HUSHLOGIN, F_OK) == 0; 396 397 if (pwd->pw_change || pwd->pw_expire) 398 (void)gettimeofday(&tp, (struct timezone *)NULL); 399 if (pwd->pw_change) 400 if (tp.tv_sec >= pwd->pw_change) { 401 (void)printf("Sorry -- your password has expired.\n"); 402 sleepexit(1); 403 } else if (pwd->pw_change - tp.tv_sec < 404 _PASSWORD_WARNDAYS * SECSPERDAY && !quietlog) 405 (void)printf("Warning: your password expires on %s", 406 ctime(&pwd->pw_change)); 407 if (pwd->pw_expire) 408 if (tp.tv_sec >= pwd->pw_expire) { 409 (void)printf("Sorry -- your account has expired.\n"); 410 sleepexit(1); 411 } else if (pwd->pw_expire - tp.tv_sec < 412 _PASSWORD_WARNDAYS * SECSPERDAY && !quietlog) 413 (void)printf("Warning: your account expires on %s", 414 ctime(&pwd->pw_expire)); 415 416 /* Nothing else left to fail -- really log in. */ 417 memset((void *)&utmp, 0, sizeof(utmp)); 418 (void)time(&utmp.ut_time); 419 (void)strncpy(utmp.ut_name, username, sizeof(utmp.ut_name)); 420 if (hostname) 421 (void)strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host)); 422 (void)strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line)); 423 login(&utmp); 424 425 dolastlog(quietlog); 426 427 (void)chown(ttyn, pwd->pw_uid, 428 (gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid); 429 430 if (ttyaction(ttyn, "login", pwd->pw_name)) 431 (void)printf("Warning: ttyaction failed.\n"); 432 433 #if defined(KERBEROS) || defined(KERBEROS5) 434 /* Fork so that we can call kdestroy */ 435 if (krbtkfile_env) 436 dofork(); 437 #endif 438 (void)setgid(pwd->pw_gid); 439 440 initgroups(username, pwd->pw_gid); 441 442 if (*pwd->pw_shell == '\0') 443 pwd->pw_shell = _PATH_BSHELL; 444 445 /* Destroy environment unless user has requested its preservation. */ 446 if (!pflag) 447 environ = envinit; 448 (void)setenv("HOME", pwd->pw_dir, 1); 449 (void)setenv("SHELL", pwd->pw_shell, 1); 450 if (term[0] == '\0') 451 (void)strncpy(term, stypeof(tty), sizeof(term)); 452 (void)setenv("TERM", term, 0); 453 (void)setenv("LOGNAME", pwd->pw_name, 1); 454 (void)setenv("USER", pwd->pw_name, 1); 455 (void)setenv("PATH", _PATH_DEFPATH, 0); 456 #ifdef KERBEROS 457 if (krbtkfile_env) 458 (void)setenv("KRBTKFILE", krbtkfile_env, 1); 459 #endif 460 #ifdef KERBEROS5 461 if (krbtkfile_env) 462 (void)setenv("KRB5CCNAME", krbtkfile_env, 1); 463 #endif 464 465 if (tty[sizeof("tty")-1] == 'd') 466 syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name); 467 468 /* If fflag is on, assume caller/authenticator has logged root login. */ 469 if (rootlogin && fflag == 0) 470 if (hostname) 471 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s", 472 username, tty, hostname); 473 else 474 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s", username, tty); 475 476 #if defined(KERBEROS) || defined(KERBEROS5) 477 if (!quietlog && notickets == 1) 478 (void)printf("Warning: no Kerberos tickets issued.\n"); 479 #endif 480 481 if (!quietlog) { 482 (void)printf("%s\n\t%s %s\n\n", 483 "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994", 484 "The Regents of the University of California. ", 485 "All rights reserved."); 486 motd(); 487 (void)snprintf(tbuf, 488 sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pwd->pw_name); 489 if (stat(tbuf, &st) == 0 && st.st_size != 0) 490 (void)printf("You have %smail.\n", 491 (st.st_mtime > st.st_atime) ? "new " : ""); 492 } 493 494 (void)signal(SIGALRM, SIG_DFL); 495 (void)signal(SIGQUIT, SIG_DFL); 496 (void)signal(SIGINT, SIG_DFL); 497 (void)signal(SIGTSTP, SIG_IGN); 498 499 tbuf[0] = '-'; 500 (void)strncpy(tbuf + 1, (p = strrchr(pwd->pw_shell, '/')) ? 501 p + 1 : pwd->pw_shell, sizeof(tbuf) - 2); 502 503 if (setlogin(pwd->pw_name) < 0) 504 syslog(LOG_ERR, "setlogin() failure: %m"); 505 506 /* Discard permissions last so can't get killed and drop core. */ 507 if (rootlogin) 508 (void) setuid(0); 509 else 510 (void) setuid(pwd->pw_uid); 511 512 execlp(pwd->pw_shell, tbuf, 0); 513 err(1, "%s", pwd->pw_shell); 514 } 515 516 int 517 pwcheck(user, p, salt, passwd) 518 char *user, *p, *salt, *passwd; 519 { 520 int sts = strcmp(crypt(p, salt), passwd); 521 522 #ifdef SKEY 523 if (sts) { /* wasn't passwd */ 524 if (skey_haskey(user)) { 525 if (strcasecmp(p, skeypw) == 0) 526 return 1; 527 } else { 528 if (strcasecmp(p, skeypw) == 0) { 529 sts = skey_authenticate(user); 530 } else { 531 if ((sts = skey_passcheck(user, p)) != -1) { 532 sts = 0; /* ok */ 533 } 534 } 535 } 536 if (sts == 0) 537 used_skey = 1; 538 } 539 #endif 540 return sts; 541 } 542 543 #if defined(KERBEROS) || defined(KERBEROS5) 544 #define NBUFSIZ (MAXLOGNAME + 1 + 5) /* .root suffix */ 545 #else 546 #define NBUFSIZ (MAXLOGNAME + 1) 547 #endif 548 549 #if defined(KERBEROS) || defined(KERBEROS5) 550 /* 551 * This routine handles cleanup stuff, and the like. 552 * It exists only in the child process. 553 */ 554 #include <sys/wait.h> 555 void 556 dofork() 557 { 558 int child; 559 560 if (!(child = fork())) 561 return; /* Child process */ 562 563 /* Setup stuff? This would be things we could do in parallel with login */ 564 (void) chdir("/"); /* Let's not keep the fs busy... */ 565 566 /* If we're the parent, watch the child until it dies */ 567 while (wait(0) != child) 568 ; 569 570 /* Cleanup stuff */ 571 /* Run kdestroy to destroy tickets */ 572 kdestroy(); 573 574 /* Leave */ 575 exit(0); 576 } 577 #endif 578 579 void 580 getloginname() 581 { 582 int ch; 583 char *p; 584 static char nbuf[NBUFSIZ]; 585 586 for (;;) { 587 (void)printf("login: "); 588 for (p = nbuf; (ch = getchar()) != '\n'; ) { 589 if (ch == EOF) { 590 badlogin(username); 591 exit(0); 592 } 593 if (p < nbuf + (NBUFSIZ - 1)) 594 *p++ = ch; 595 } 596 if (p > nbuf) 597 if (nbuf[0] == '-') 598 (void)fprintf(stderr, 599 "login names may not start with '-'.\n"); 600 else { 601 *p = '\0'; 602 username = nbuf; 603 break; 604 } 605 } 606 } 607 608 int 609 rootterm(ttyn) 610 char *ttyn; 611 { 612 struct ttyent *t; 613 614 return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE); 615 } 616 617 jmp_buf motdinterrupt; 618 619 void 620 motd() 621 { 622 int fd, nchars; 623 sig_t oldint; 624 char tbuf[8192]; 625 626 if ((fd = open(_PATH_MOTDFILE, O_RDONLY, 0)) < 0) 627 return; 628 oldint = signal(SIGINT, sigint); 629 if (setjmp(motdinterrupt) == 0) 630 while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0) 631 (void)write(fileno(stdout), tbuf, nchars); 632 (void)signal(SIGINT, oldint); 633 (void)close(fd); 634 } 635 636 /* ARGSUSED */ 637 void 638 sigint(signo) 639 int signo; 640 { 641 longjmp(motdinterrupt, 1); 642 } 643 644 /* ARGSUSED */ 645 void 646 timedout(signo) 647 int signo; 648 { 649 (void)fprintf(stderr, "Login timed out after %d seconds\n", timeout); 650 exit(0); 651 } 652 653 void 654 checknologin() 655 { 656 int fd, nchars; 657 char tbuf[8192]; 658 659 if ((fd = open(_PATH_NOLOGIN, O_RDONLY, 0)) >= 0) { 660 while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0) 661 (void)write(fileno(stdout), tbuf, nchars); 662 sleepexit(0); 663 } 664 } 665 666 void 667 dolastlog(quiet) 668 int quiet; 669 { 670 struct lastlog ll; 671 int fd; 672 673 if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) { 674 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET); 675 if (!quiet) { 676 if (read(fd, (char *)&ll, sizeof(ll)) == sizeof(ll) && 677 ll.ll_time != 0) { 678 (void)printf("Last login: %.*s ", 679 24-5, (char *)ctime(&ll.ll_time)); 680 if (*ll.ll_host != '\0') 681 (void)printf("from %.*s\n", 682 (int)sizeof(ll.ll_host), 683 ll.ll_host); 684 else 685 (void)printf("on %.*s\n", 686 (int)sizeof(ll.ll_line), 687 ll.ll_line); 688 } 689 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET); 690 } 691 memset((void *)&ll, 0, sizeof(ll)); 692 (void)time(&ll.ll_time); 693 (void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line)); 694 if (hostname) 695 (void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host)); 696 (void)write(fd, (char *)&ll, sizeof(ll)); 697 (void)close(fd); 698 } 699 } 700 701 void 702 badlogin(name) 703 char *name; 704 { 705 if (failures == 0) 706 return; 707 if (hostname) { 708 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s", 709 failures, failures > 1 ? "S" : "", hostname); 710 syslog(LOG_AUTHPRIV|LOG_NOTICE, 711 "%d LOGIN FAILURE%s FROM %s, %s", 712 failures, failures > 1 ? "S" : "", hostname, name); 713 } else { 714 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s", 715 failures, failures > 1 ? "S" : "", tty); 716 syslog(LOG_AUTHPRIV|LOG_NOTICE, 717 "%d LOGIN FAILURE%s ON %s, %s", 718 failures, failures > 1 ? "S" : "", tty, name); 719 } 720 } 721 722 #undef UNKNOWN 723 #define UNKNOWN "su" 724 725 char * 726 stypeof(ttyid) 727 char *ttyid; 728 { 729 struct ttyent *t; 730 731 return (ttyid && (t = getttynam(ttyid)) ? t->ty_type : UNKNOWN); 732 } 733 734 void 735 sleepexit(eval) 736 int eval; 737 { 738 (void)sleep(5); 739 exit(eval); 740 } 741
Indexes created Wed Oct 01 13:09:50 GMT 2025