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1.11 ! millert 1: /* $OpenBSD: login.c,v 1.10 1996/11/05 18:23:49 deraadt Exp $ */
1.3 deraadt 2: /* $NetBSD: login.c,v 1.13 1996/05/15 23:50:16 jtc Exp $ */
1.1 deraadt 3:
4: /*-
5: * Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: static char copyright[] =
39: "@(#) Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994\n\
40: The Regents of the University of California. All rights reserved.\n";
41: #endif /* not lint */
42:
43: #ifndef lint
44: #if 0
45: static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94";
46: #endif
1.11 ! millert 47: static char rcsid[] = "$OpenBSD: login.c,v 1.10 1996/11/05 18:23:49 deraadt Exp $";
1.1 deraadt 48: #endif /* not lint */
49:
50: /*
51: * login [ name ]
52: * login -h hostname (for telnetd, etc.)
53: * login -f name (for pre-authenticated login: datakit, xterm, etc.)
54: */
55:
56: #include <sys/param.h>
57: #include <sys/stat.h>
58: #include <sys/time.h>
59: #include <sys/resource.h>
60: #include <sys/file.h>
1.11 ! millert 61: #include <sys/wait.h>
1.1 deraadt 62:
63: #include <err.h>
64: #include <errno.h>
65: #include <grp.h>
66: #include <pwd.h>
67: #include <setjmp.h>
68: #include <signal.h>
69: #include <stdio.h>
70: #include <stdlib.h>
71: #include <string.h>
72: #include <syslog.h>
73: #include <ttyent.h>
74: #include <tzfile.h>
75: #include <unistd.h>
76: #include <utmp.h>
1.3 deraadt 77: #include <util.h>
1.1 deraadt 78:
79: #include "pathnames.h"
80:
81: void badlogin __P((char *));
82: void checknologin __P((void));
83: void dolastlog __P((int));
84: void getloginname __P((void));
85: void motd __P((void));
86: int rootterm __P((char *));
87: void sigint __P((int));
1.11 ! millert 88: void sighup __P((int));
1.1 deraadt 89: void sleepexit __P((int));
90: char *stypeof __P((char *));
91: void timedout __P((int));
92: int pwcheck __P((char *, char *, char *, char *));
93: #if defined(KERBEROS) || defined(KERBEROS5)
94: int klogin __P((struct passwd *, char *, char *, char *));
95: void kdestroy __P((void));
96: void dofork __P((void));
97: #endif
98:
99: extern void login __P((struct utmp *));
100:
101: #define TTYGRPNAME "tty" /* name of group to own ttys */
102:
103: /*
104: * This bounds the time given to login. Not a define so it can
105: * be patched on machines where it's too small.
106: */
107: u_int timeout = 300;
108:
109: #if defined(KERBEROS) || defined(KERBEROS5)
110: int notickets = 1;
111: char *instance;
112: char *krbtkfile_env;
113: int authok;
114: #endif
115:
116: struct passwd *pwd;
117: int failures;
118: char term[64], *envinit[1], *hostname, *username, *tty;
119:
120: int
121: main(argc, argv)
122: int argc;
123: char *argv[];
124: {
125: extern char **environ;
126: struct group *gr;
127: struct stat st;
128: struct timeval tp;
129: struct utmp utmp;
130: int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval;
131: uid_t uid;
132: char *domain, *p, *salt, *ttyn;
133: char tbuf[MAXPATHLEN + 2], tname[sizeof(_PATH_TTY) + 10];
134: char localhost[MAXHOSTNAMELEN];
135:
136: (void)signal(SIGALRM, timedout);
137: (void)alarm(timeout);
138: (void)signal(SIGQUIT, SIG_IGN);
139: (void)signal(SIGINT, SIG_IGN);
1.11 ! millert 140: (void)signal(SIGHUP, sighup);
1.1 deraadt 141: (void)setpriority(PRIO_PROCESS, 0, 0);
142:
143: openlog("login", LOG_ODELAY, LOG_AUTH);
144:
145: /*
146: * -p is used by getty to tell login not to destroy the environment
147: * -f is used to skip a second login authentication
148: * -h is used by other servers to pass the name of the remote
149: * host to login so that it may be placed in utmp and wtmp
150: */
151: domain = NULL;
152: if (gethostname(localhost, sizeof(localhost)) < 0)
153: syslog(LOG_ERR, "couldn't get local hostname: %m");
154: else
155: domain = strchr(localhost, '.');
156:
157: fflag = hflag = pflag = 0;
158: uid = getuid();
159: while ((ch = getopt(argc, argv, "fh:p")) != EOF)
160: switch (ch) {
161: case 'f':
162: fflag = 1;
163: break;
164: case 'h':
165: if (uid)
166: errx(1, "-h option: %s", strerror(EPERM));
167: hflag = 1;
168: if (domain && (p = strchr(optarg, '.')) &&
169: strcasecmp(p, domain) == 0)
170: *p = 0;
171: hostname = optarg;
172: break;
173: case 'p':
174: pflag = 1;
175: break;
176: case '?':
177: default:
178: if (!uid)
179: syslog(LOG_ERR, "invalid flag %c", ch);
180: (void)fprintf(stderr,
181: "usage: login [-fp] [-h hostname] [username]\n");
182: exit(1);
183: }
184: argc -= optind;
185: argv += optind;
186:
187: if (*argv) {
188: username = *argv;
189: ask = 0;
190: } else
191: ask = 1;
192:
193: for (cnt = getdtablesize(); cnt > 2; cnt--)
194: (void)close(cnt);
195:
196: ttyn = ttyname(STDIN_FILENO);
197: if (ttyn == NULL || *ttyn == '\0') {
198: (void)snprintf(tname, sizeof(tname), "%s??", _PATH_TTY);
199: ttyn = tname;
200: }
201: if (tty = strrchr(ttyn, '/'))
202: ++tty;
203: else
204: tty = ttyn;
205:
206: for (cnt = 0;; ask = 1) {
207: #if defined(KERBEROS) || defined(KERBEROS5)
208: kdestroy();
209: #endif
210: if (ask) {
211: fflag = 0;
212: getloginname();
213: }
214: rootlogin = 0;
215: #ifdef KERBEROS
216: if ((instance = strchr(username, '.')) != NULL) {
217: if (strncmp(instance, ".root", 5) == 0)
218: rootlogin = 1;
219: *instance++ = '\0';
220: } else
221: instance = "";
222: #endif
223: #ifdef KERBEROS5
224: if ((instance = strchr(username, '/')) != NULL) {
225: if (strncmp(instance, "/root", 5) == 0)
226: rootlogin = 1;
227: *instance++ = '\0';
228: } else
229: instance = "";
230: #endif
231: if (strlen(username) > UT_NAMESIZE)
232: username[UT_NAMESIZE] = '\0';
233:
234: /*
235: * Note if trying multiple user names; log failures for
236: * previous user name, but don't bother logging one failure
237: * for nonexistent name (mistyped username).
238: */
239: if (failures && strcmp(tbuf, username)) {
240: if (failures > (pwd ? 0 : 1))
241: badlogin(tbuf);
242: failures = 0;
243: }
244: (void)strcpy(tbuf, username);
245:
246: if (pwd = getpwnam(username))
247: salt = pwd->pw_passwd;
248: else
249: salt = "xx";
250:
251: /*
252: * if we have a valid account name, and it doesn't have a
253: * password, or the -f option was specified and the caller
254: * is root or the caller isn't changing their uid, don't
255: * authenticate.
256: */
257: if (pwd) {
258: if (pwd->pw_uid == 0)
259: rootlogin = 1;
260:
261: if (fflag && (uid == 0 || uid == pwd->pw_uid)) {
262: /* already authenticated */
263: break;
264: } else if (pwd->pw_passwd[0] == '\0') {
265: /* pretend password okay */
266: rval = 0;
267: goto ttycheck;
268: }
269: }
270:
271: fflag = 0;
272:
273: (void)setpriority(PRIO_PROCESS, 0, -4);
274:
275: p = getpass("Password:");
276:
277: if (pwd) {
278: #if defined(KERBEROS) || defined(KERBEROS5)
279: rval = klogin(pwd, instance, localhost, p);
280: if (rval != 0 && rootlogin && pwd->pw_uid != 0)
281: rootlogin = 0;
282: if (rval == 0)
283: authok = 1;
284: else if (rval == 1) {
285: if (pwd->pw_uid != 0)
286: rootlogin = 0;
287: rval = pwcheck(username, p, salt, pwd->pw_passwd);
288: }
289: #else
290: rval = pwcheck(username, p, salt, pwd->pw_passwd);
291: #endif
292: }
293: memset(p, 0, strlen(p));
294:
295: (void)setpriority(PRIO_PROCESS, 0, 0);
296:
297: ttycheck:
298: /*
299: * If trying to log in as root without Kerberos,
300: * but with insecure terminal, refuse the login attempt.
301: */
302: #if defined(KERBEROS) || defined(KERBEROS5)
303: if (authok == 0)
304: #endif
305: if (pwd && !rval && rootlogin && !rootterm(tty)) {
306: (void)fprintf(stderr,
307: "%s login refused on this terminal.\n",
308: pwd->pw_name);
309: if (hostname)
310: syslog(LOG_NOTICE,
311: "LOGIN %s REFUSED FROM %s ON TTY %s",
312: pwd->pw_name, hostname, tty);
313: else
314: syslog(LOG_NOTICE,
315: "LOGIN %s REFUSED ON TTY %s",
316: pwd->pw_name, tty);
317: continue;
318: }
319:
320: if (pwd && !rval)
321: break;
322:
323: (void)printf("Login incorrect\n");
324: failures++;
325: /* we allow 10 tries, but after 3 we start backing off */
326: if (++cnt > 3) {
327: if (cnt >= 10) {
328: badlogin(username);
329: sleepexit(1);
330: }
331: sleep((u_int)((cnt - 3) * 5));
332: }
333: }
334:
335: /* committed to login -- turn off timeout */
336: (void)alarm((u_int)0);
337:
338: endpwent();
339:
340: /* if user not super-user, check for disabled logins */
341: if (!rootlogin)
342: checknologin();
343:
1.5 deraadt 344: setegid(pwd->pw_gid);
345: seteuid(pwd->pw_uid);
346:
1.1 deraadt 347: if (chdir(pwd->pw_dir) < 0) {
348: (void)printf("No home directory %s!\n", pwd->pw_dir);
349: if (chdir("/"))
350: exit(0);
351: pwd->pw_dir = "/";
352: (void)printf("Logging in with home = \"/\".\n");
353: }
354:
355: quietlog = access(_PATH_HUSHLOGIN, F_OK) == 0;
1.5 deraadt 356:
357: seteuid(0);
358: setegid(0); /* XXX use a saved gid instead? */
1.1 deraadt 359:
360: if (pwd->pw_change || pwd->pw_expire)
361: (void)gettimeofday(&tp, (struct timezone *)NULL);
362: if (pwd->pw_change)
363: if (tp.tv_sec >= pwd->pw_change) {
364: (void)printf("Sorry -- your password has expired.\n");
365: sleepexit(1);
366: } else if (pwd->pw_change - tp.tv_sec <
367: 2 * DAYSPERWEEK * SECSPERDAY && !quietlog)
368: (void)printf("Warning: your password expires on %s",
369: ctime(&pwd->pw_change));
370: if (pwd->pw_expire)
371: if (tp.tv_sec >= pwd->pw_expire) {
372: (void)printf("Sorry -- your account has expired.\n");
373: sleepexit(1);
374: } else if (pwd->pw_expire - tp.tv_sec <
375: 2 * DAYSPERWEEK * SECSPERDAY && !quietlog)
376: (void)printf("Warning: your account expires on %s",
377: ctime(&pwd->pw_expire));
378:
379: /* Nothing else left to fail -- really log in. */
1.11 ! millert 380: (void)signal(SIGHUP, SIG_DFL);
1.1 deraadt 381: memset((void *)&utmp, 0, sizeof(utmp));
382: (void)time(&utmp.ut_time);
383: (void)strncpy(utmp.ut_name, username, sizeof(utmp.ut_name));
384: if (hostname)
385: (void)strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host));
386: (void)strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line));
387: login(&utmp);
388:
389: dolastlog(quietlog);
1.6 deraadt 390:
391: login_fbtab(tty, pwd->pw_uid, pwd->pw_gid);
1.1 deraadt 392:
393: (void)chown(ttyn, pwd->pw_uid,
394: (gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid);
395: #if defined(KERBEROS) || defined(KERBEROS5)
396: /* Fork so that we can call kdestroy */
397: if (krbtkfile_env)
398: dofork();
399: #endif
400: (void)setgid(pwd->pw_gid);
401:
402: initgroups(username, pwd->pw_gid);
403:
404: if (*pwd->pw_shell == '\0')
405: pwd->pw_shell = _PATH_BSHELL;
406:
407: /* Destroy environment unless user has requested its preservation. */
408: if (!pflag)
409: environ = envinit;
1.9 millert 410: else {
411: char **cpp, **cpp2;
412:
413: for (cpp2 = cpp = environ; *cpp; cpp++) {
414: if (strncmp(*cpp, "LD_", 3) &&
415: strncmp(*cpp, "IFS=", 4))
416: *cpp2++ = *cpp;
417: }
418: *cpp2 = 0;
419: }
1.1 deraadt 420: (void)setenv("HOME", pwd->pw_dir, 1);
421: (void)setenv("SHELL", pwd->pw_shell, 1);
422: if (term[0] == '\0')
423: (void)strncpy(term, stypeof(tty), sizeof(term));
424: (void)setenv("TERM", term, 0);
425: (void)setenv("LOGNAME", pwd->pw_name, 1);
426: (void)setenv("USER", pwd->pw_name, 1);
427: (void)setenv("PATH", _PATH_DEFPATH, 0);
428: #ifdef KERBEROS
429: if (krbtkfile_env)
430: (void)setenv("KRBTKFILE", krbtkfile_env, 1);
431: #endif
432: #ifdef KERBEROS5
433: if (krbtkfile_env)
434: (void)setenv("KRB5CCNAME", krbtkfile_env, 1);
435: #endif
436:
437: /* If fflag is on, assume caller/authenticator has logged root login. */
438: if (rootlogin && fflag == 0)
439: if (hostname)
440: syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
441: username, tty, hostname);
442: else
443: syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s", username, tty);
444:
445: #if defined(KERBEROS) || defined(KERBEROS5)
446: if (!quietlog && notickets == 1)
447: (void)printf("Warning: no Kerberos tickets issued.\n");
448: #endif
449:
450: if (!quietlog) {
1.2 deraadt 451: #if 0
1.1 deraadt 452: (void)printf("%s\n\t%s %s\n\n",
453: "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994",
454: "The Regents of the University of California. ",
455: "All rights reserved.");
1.2 deraadt 456: #endif
1.1 deraadt 457: motd();
458: (void)snprintf(tbuf,
459: sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pwd->pw_name);
460: if (stat(tbuf, &st) == 0 && st.st_size != 0)
461: (void)printf("You have %smail.\n",
462: (st.st_mtime > st.st_atime) ? "new " : "");
463: }
464:
465: (void)signal(SIGALRM, SIG_DFL);
466: (void)signal(SIGQUIT, SIG_DFL);
467: (void)signal(SIGINT, SIG_DFL);
468: (void)signal(SIGTSTP, SIG_IGN);
469:
470: tbuf[0] = '-';
471: (void)strcpy(tbuf + 1, (p = strrchr(pwd->pw_shell, '/')) ?
472: p + 1 : pwd->pw_shell);
473:
474: if (setlogin(pwd->pw_name) < 0)
475: syslog(LOG_ERR, "setlogin() failure: %m");
476:
477: /* Discard permissions last so can't get killed and drop core. */
478: if (rootlogin)
479: (void) setuid(0);
480: else
481: (void) setuid(pwd->pw_uid);
482:
483: execlp(pwd->pw_shell, tbuf, 0);
484: err(1, "%s", pwd->pw_shell);
485: }
486:
487: int
488: pwcheck(user, p, salt, passwd)
489: char *user, *p, *salt, *passwd;
490: {
491: #ifdef SKEY
1.8 millert 492: if (strcasecmp(p, "s/key") == 0)
1.7 deraadt 493: return skey_authenticate(user);
1.1 deraadt 494: #endif
495: return strcmp(crypt(p, salt), passwd);
496: }
497:
498: #if defined(KERBEROS) || defined(KERBEROS5)
499: #define NBUFSIZ (UT_NAMESIZE + 1 + 5) /* .root suffix */
500: #else
501: #define NBUFSIZ (UT_NAMESIZE + 1)
502: #endif
503:
504: #if defined(KERBEROS) || defined(KERBEROS5)
505: /*
506: * This routine handles cleanup stuff, and the like.
507: * It exists only in the child process.
508: */
509: #include <sys/wait.h>
510: void
511: dofork()
512: {
513: int child;
514:
515: if (!(child = fork()))
516: return; /* Child process */
517:
518: /* Setup stuff? This would be things we could do in parallel with login */
519: (void) chdir("/"); /* Let's not keep the fs busy... */
520:
521: /* If we're the parent, watch the child until it dies */
522: while (wait(0) != child)
523: ;
524:
525: /* Cleanup stuff */
526: /* Run kdestroy to destroy tickets */
527: kdestroy();
528:
529: /* Leave */
530: exit(0);
531: }
532: #endif
533:
534: void
535: getloginname()
536: {
537: int ch;
538: char *p;
539: static char nbuf[NBUFSIZ];
540:
541: for (;;) {
542: (void)printf("login: ");
543: for (p = nbuf; (ch = getchar()) != '\n'; ) {
544: if (ch == EOF) {
545: badlogin(username);
546: exit(0);
547: }
548: if (p < nbuf + (NBUFSIZ - 1))
549: *p++ = ch;
550: }
551: if (p > nbuf)
552: if (nbuf[0] == '-')
553: (void)fprintf(stderr,
554: "login names may not start with '-'.\n");
555: else {
556: *p = '\0';
557: username = nbuf;
558: break;
559: }
560: }
561: }
562:
563: int
564: rootterm(ttyn)
565: char *ttyn;
566: {
567: struct ttyent *t;
568:
569: return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
570: }
571:
572: jmp_buf motdinterrupt;
573:
574: void
575: motd()
576: {
577: int fd, nchars;
578: sig_t oldint;
579: char tbuf[8192];
580:
581: if ((fd = open(_PATH_MOTDFILE, O_RDONLY, 0)) < 0)
582: return;
583: oldint = signal(SIGINT, sigint);
584: if (setjmp(motdinterrupt) == 0)
585: while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0)
586: (void)write(fileno(stdout), tbuf, nchars);
587: (void)signal(SIGINT, oldint);
588: (void)close(fd);
589: }
590:
591: /* ARGSUSED */
592: void
593: sigint(signo)
594: int signo;
595: {
596: longjmp(motdinterrupt, 1);
597: }
598:
599: /* ARGSUSED */
600: void
601: timedout(signo)
602: int signo;
603: {
604: (void)fprintf(stderr, "Login timed out after %d seconds\n", timeout);
605: exit(0);
606: }
607:
608: void
609: checknologin()
610: {
611: int fd, nchars;
612: char tbuf[8192];
613:
614: if ((fd = open(_PATH_NOLOGIN, O_RDONLY, 0)) >= 0) {
615: while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0)
616: (void)write(fileno(stdout), tbuf, nchars);
617: sleepexit(0);
618: }
619: }
620:
621: void
622: dolastlog(quiet)
623: int quiet;
624: {
625: struct lastlog ll;
626: int fd;
627:
628: if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) {
629: (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
630: if (!quiet) {
631: if (read(fd, (char *)&ll, sizeof(ll)) == sizeof(ll) &&
632: ll.ll_time != 0) {
633: (void)printf("Last login: %.*s ",
634: 24-5, (char *)ctime(&ll.ll_time));
635: if (*ll.ll_host != '\0')
636: (void)printf("from %.*s\n",
637: (int)sizeof(ll.ll_host),
638: ll.ll_host);
639: else
640: (void)printf("on %.*s\n",
641: (int)sizeof(ll.ll_line),
642: ll.ll_line);
643: }
644: (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
645: }
646: memset((void *)&ll, 0, sizeof(ll));
647: (void)time(&ll.ll_time);
648: (void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
649: if (hostname)
650: (void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
651: (void)write(fd, (char *)&ll, sizeof(ll));
652: (void)close(fd);
653: }
654: }
655:
656: void
657: badlogin(name)
658: char *name;
659: {
660: if (failures == 0)
661: return;
662: if (hostname) {
663: syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s",
664: failures, failures > 1 ? "S" : "", hostname);
665: syslog(LOG_AUTHPRIV|LOG_NOTICE,
666: "%d LOGIN FAILURE%s FROM %s, %s",
667: failures, failures > 1 ? "S" : "", hostname, name);
668: } else {
669: syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s",
670: failures, failures > 1 ? "S" : "", tty);
671: syslog(LOG_AUTHPRIV|LOG_NOTICE,
672: "%d LOGIN FAILURE%s ON %s, %s",
673: failures, failures > 1 ? "S" : "", tty, name);
674: }
675: }
676:
677: #undef UNKNOWN
678: #define UNKNOWN "su"
679:
680: char *
681: stypeof(ttyid)
682: char *ttyid;
683: {
684: struct ttyent *t;
685:
686: return (ttyid && (t = getttynam(ttyid)) ? t->ty_type : UNKNOWN);
687: }
688:
689: void
690: sleepexit(eval)
691: int eval;
692: {
693: (void)sleep(5);
694: exit(eval);
1.11 ! millert 695: }
! 696:
! 697: void
! 698: sighup(signum)
! 699: int signum;
! 700: {
! 701: if (username)
! 702: badlogin(username);
! 703:
! 704: exit(W_EXITCODE(0, signum));
1.1 deraadt 705: }