2 * Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static char copyright[] =
36 "@(#) Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)login.c 8.4 (Berkeley) 4/2/94";
44 static const char rcsid[] =
45 "$FreeBSD: src/usr.bin/login/login.c,v 1.51.2.15 2003/04/29 14:10:41 des Exp $";
50 * login -h hostname (for telnetd, etc.)
51 * login -f name (for pre-authenticated login: datakit, xterm, etc.)
54 #include <sys/copyright.h>
55 #include <sys/param.h>
57 #include <sys/socket.h>
59 #include <sys/resource.h>
61 #include <netinet/in.h>
62 #include <arpa/inet.h>
68 #include <login_cap.h>
82 #include <security/pam_appl.h>
83 #include <security/pam_misc.h>
87 #include "pathnames.h"
89 /* wrapper for KAME-special getnameinfo() */
90 #ifndef NI_WITHSCOPEID
91 #define NI_WITHSCOPEID 0
94 void badlogin __P((char *));
95 void checknologin __P((void));
96 void dolastlog __P((int));
97 void getloginname __P((void));
98 void motd __P((char *));
99 int rootterm __P((char *));
100 void sigint __P((int));
101 void sleepexit __P((int));
102 void refused __P((char *,char *,int));
103 char *stypeof __P((char *));
104 void timedout __P((int));
105 int login_access __P((char *, char *));
106 void login_fbtab __P((char *, uid_t, gid_t));
109 static int auth_pam __P((void));
110 static int export_pam_environment __P((void));
111 static int ok_to_export __P((const char *));
113 static pam_handle_t *pamh = NULL;
114 static char **environ_pam;
117 if ((e = pam_setcred(pamh, PAM_DELETE_CRED)) != PAM_SUCCESS) \
118 syslog(LOG_ERR, "pam_setcred: %s", pam_strerror(pamh, e)); \
119 if ((e = pam_close_session(pamh,0)) != PAM_SUCCESS) \
120 syslog(LOG_ERR, "pam_close_session: %s", pam_strerror(pamh, e)); \
121 if ((e = pam_end(pamh, e)) != PAM_SUCCESS) \
122 syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e)); \
125 static int auth_traditional __P((void));
126 extern void login __P((struct utmp *));
127 static void usage __P((void));
129 #define TTYGRPNAME "tty" /* name of group to own ttys */
130 #define DEFAULT_BACKOFF 3
131 #define DEFAULT_RETRIES 10
132 #define DEFAULT_PROMPT "login: "
133 #define DEFAULT_PASSWD_PROMPT "Password:"
136 * This bounds the time given to login. Not a define so it can
137 * be patched on machines where it's too small.
141 /* Buffer for signal handling of timeout */
146 char *term, *envinit[1], *hostname, *passwd_prompt, *prompt, *tty, *username;
147 char full_hostname[MAXHOSTNAMELEN];
154 extern char **environ;
159 int rootok, retries, backoff;
160 int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval;
166 char tbuf[MAXPATHLEN + 2];
167 char tname[sizeof(_PATH_TTY) + 10];
169 login_cap_t *lc = NULL;
175 (void)signal(SIGQUIT, SIG_IGN);
176 (void)signal(SIGINT, SIG_IGN);
177 (void)signal(SIGHUP, SIG_IGN);
178 if (setjmp(timeout_buf)) {
181 (void)fprintf(stderr, "Login timed out after %d seconds\n",
185 (void)signal(SIGALRM, timedout);
186 (void)alarm(timeout);
187 (void)setpriority(PRIO_PROCESS, 0, 0);
189 openlog("login", LOG_ODELAY, LOG_AUTH);
192 * -p is used by getty to tell login not to destroy the environment
193 * -f is used to skip a second login authentication
194 * -h is used by other servers to pass the name of the remote
195 * host to login so that it may be placed in utmp and wtmp
197 *full_hostname = '\0';
200 fflag = hflag = pflag = 0;
204 while ((ch = getopt(argc, argv, "fh:p")) != -1)
211 errx(1, "-h option: %s", strerror(EPERM));
213 if (strlcpy(full_hostname, optarg,
214 sizeof(full_hostname)) >= sizeof(full_hostname))
215 errx(1, "-h option: %s: exceeds maximum "
216 "hostname size", optarg);
218 trimdomain(optarg, UT_HOSTSIZE);
220 if (strlen(optarg) > UT_HOSTSIZE) {
221 struct addrinfo hints, *res;
224 memset(&hints, 0, sizeof(hints));
225 hints.ai_family = AF_UNSPEC;
226 ga_err = getaddrinfo(optarg, NULL, &hints,
229 char hostbuf[MAXHOSTNAMELEN];
231 getnameinfo(res->ai_addr,
234 sizeof(hostbuf), NULL, 0,
237 optarg = strdup(hostbuf);
238 if (optarg == NULL) {
244 optarg = "invalid hostname";
256 syslog(LOG_ERR, "invalid flag %c", ch);
268 setproctitle("-%s", getprogname());
270 for (cnt = getdtablesize(); cnt > 2; cnt--)
273 ttyn = ttyname(STDIN_FILENO);
274 if (ttyn == NULL || *ttyn == '\0') {
275 (void)snprintf(tname, sizeof(tname), "%s??", _PATH_TTY);
278 if ((tty = strrchr(ttyn, '/')) != NULL)
284 * Get "login-retries" & "login-backoff" from default class
286 lc = login_getclass(NULL);
287 prompt = login_getcapstr(lc, "login_prompt",
288 DEFAULT_PROMPT, DEFAULT_PROMPT);
289 passwd_prompt = login_getcapstr(lc, "passwd_prompt",
290 DEFAULT_PASSWD_PROMPT, DEFAULT_PASSWD_PROMPT);
291 retries = login_getcapnum(lc, "login-retries", DEFAULT_RETRIES,
293 backoff = login_getcapnum(lc, "login-backoff", DEFAULT_BACKOFF,
298 for (cnt = 0;; ask = 1) {
304 rootok = rootterm(tty); /* Default (auth may change) */
306 if (strlen(username) > UT_NAMESIZE)
307 username[UT_NAMESIZE] = '\0';
310 * Note if trying multiple user names; log failures for
311 * previous user name, but don't bother logging one failure
312 * for nonexistent name (mistyped username).
314 if (failures && strcmp(tbuf, username)) {
315 if (failures > (pwd ? 0 : 1))
318 (void)strlcpy(tbuf, username, sizeof(tbuf));
320 pwd = getpwnam(username);
323 * if we have a valid account name, and it doesn't have a
324 * password, or the -f option was specified and the caller
325 * is root or the caller isn't changing their uid, don't
329 if (pwd->pw_uid == 0)
332 if (fflag && (uid == (uid_t)0 ||
333 uid == (uid_t)pwd->pw_uid)) {
334 /* already authenticated */
336 } else if (pwd->pw_passwd[0] == '\0') {
337 if (!rootlogin || rootok) {
338 /* pretend password okay */
347 (void)setpriority(PRIO_PROCESS, 0, -4);
351 * Try to authenticate using PAM. If a PAM system error
352 * occurs, perhaps because of a botched configuration,
353 * then fall back to using traditional Unix authentication.
355 if ((rval = auth_pam()) == -1)
357 rval = auth_traditional();
359 (void)setpriority(PRIO_PROCESS, 0, 0);
363 * PAM authentication may have changed "pwd" to the
364 * entry for the template user. Check again to see if
365 * this is a root login after all.
367 if (pwd != NULL && pwd->pw_uid == 0)
373 * If trying to log in as root without Kerberos,
374 * but with insecure terminal, refuse the login attempt.
377 if (rootlogin && !rootok)
378 refused(NULL, "NOROOT", 0);
379 else /* valid password & authenticated */
383 (void)printf("Login incorrect\n");
387 * we allow up to 'retry' (10) tries,
388 * but after 'backoff' (3) we start backing off
390 if (++cnt > backoff) {
391 if (cnt >= retries) {
395 sleep((u_int)((cnt - backoff) * 5));
399 /* committed to login -- turn off timeout */
400 (void)alarm((u_int)0);
401 (void)signal(SIGHUP, SIG_DFL);
406 * Establish the login class.
408 lc = login_getpwclass(pwd);
410 /* if user not super-user, check for disabled logins */
412 auth_checknologin(lc);
414 quietlog = login_getcapbool(lc, "hushlogin", 0);
415 /* Switching needed for NFS with root access disabled */
416 (void)setegid(pwd->pw_gid);
417 (void)seteuid(rootlogin ? 0 : pwd->pw_uid);
418 if (!*pwd->pw_dir || chdir(pwd->pw_dir) < 0) {
419 if (login_getcapbool(lc, "requirehome", 0))
420 refused("Home directory not available", "HOMEDIR", 1);
422 refused("Cannot find root directory", "ROOTDIR", 1);
423 if (!quietlog || *pwd->pw_dir)
424 printf("No home directory.\nLogging in with home = \"/\".\n");
430 quietlog = access(_PATH_HUSHLOGIN, F_OK) == 0;
432 if (pwd->pw_change || pwd->pw_expire)
433 (void)gettimeofday(&tp, (struct timezone *)NULL);
435 #define DEFAULT_WARN (2L * 7L * 86400L) /* Two weeks */
437 warntime = login_getcaptime(lc, "warnexpire", DEFAULT_WARN,
440 if (pwd->pw_expire) {
441 if (tp.tv_sec >= pwd->pw_expire) {
442 refused("Sorry -- your account has expired", "EXPIRED",
444 } else if (pwd->pw_expire - tp.tv_sec < warntime && !quietlog)
445 (void)printf("Warning: your account expires on %s",
446 ctime(&pwd->pw_expire));
449 warntime = login_getcaptime(lc, "warnpassword", DEFAULT_WARN,
453 if (pwd->pw_change) {
454 if (tp.tv_sec >= pwd->pw_change) {
455 (void)printf("Sorry -- your password has expired.\n");
457 syslog(LOG_INFO, "%s Password expired - forcing change",
459 } else if (pwd->pw_change - tp.tv_sec < warntime && !quietlog)
460 (void)printf("Warning: your password expires on %s",
461 ctime(&pwd->pw_change));
466 struct addrinfo hints, *res;
469 memset(&hints, 0, sizeof(hints));
470 hints.ai_family = AF_UNSPEC;
471 ga_err = getaddrinfo(full_hostname, NULL, &hints,
474 char hostbuf[MAXHOSTNAMELEN];
476 getnameinfo(res->ai_addr, res->ai_addrlen,
477 hostbuf, sizeof(hostbuf), NULL, 0,
478 NI_NUMERICHOST|NI_WITHSCOPEID);
479 if ((optarg = strdup(hostbuf)) == NULL) {
480 syslog(LOG_NOTICE, "strdup(): %m");
487 if (!auth_hostok(lc, full_hostname, optarg))
488 refused("Permission denied", "HOST", 1);
491 if (!auth_ttyok(lc, tty))
492 refused("Permission denied", "TTY", 1);
494 if (!auth_timeok(lc, time(NULL)))
495 refused("Logins not available right now", "TIME", 1);
497 shell = login_getcapstr(lc, "shell", pwd->pw_shell, pwd->pw_shell);
498 if (*pwd->pw_shell == '\0')
499 pwd->pw_shell = _PATH_BSHELL;
500 if (*shell == '\0') /* Not overridden */
501 shell = pwd->pw_shell;
502 if ((shell = strdup(shell)) == NULL) {
503 syslog(LOG_NOTICE, "strdup(): %m");
508 if (login_access(pwd->pw_name, hostname ? full_hostname : tty) == 0)
509 refused("Permission denied", "ACCESS", 1);
510 #endif /* LOGIN_ACCESS */
512 /* Nothing else left to fail -- really log in. */
513 memset((void *)&utmp, 0, sizeof(utmp));
514 (void)time(&utmp.ut_time);
515 (void)strncpy(utmp.ut_name, username, sizeof(utmp.ut_name));
517 (void)strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host));
518 (void)strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line));
524 * Set device protections, depending on what terminal the
525 * user is logged in. This feature is used on Suns to give
526 * console users better privacy.
528 login_fbtab(tty, pwd->pw_uid, pwd->pw_gid);
531 * Clear flags of the tty. None should be set, and when the
532 * user sets them otherwise, this can cause the chown to fail.
533 * Since it isn't clear that flags are useful on character
534 * devices, we just clear them.
536 if (ttyn != tname && chflags(ttyn, 0) && errno != EOPNOTSUPP)
537 syslog(LOG_ERR, "chflags(%s): %m", ttyn);
538 if (ttyn != tname && chown(ttyn, pwd->pw_uid,
539 (gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid))
540 syslog(LOG_ERR, "chmod(%s): %m", ttyn);
544 * Preserve TERM if it happens to be already set.
546 if ((term = getenv("TERM")) != NULL) {
547 if ((term = strdup(term)) == NULL) {
555 * Exclude cons/vt/ptys only, assume dialup otherwise
556 * TODO: Make dialup tty determination a library call
557 * for consistency (finger etc.)
559 if (hostname==NULL && isdialuptty(tty))
560 syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name);
564 * Syslog each successful login, so we don't have to watch hundreds
565 * of wtmp or lastlogin files.
568 syslog(LOG_INFO, "login from %s on %s as %s",
569 full_hostname, tty, pwd->pw_name);
571 syslog(LOG_INFO, "login on %s as %s",
576 * If fflag is on, assume caller/authenticator has logged root login.
578 if (rootlogin && fflag == 0)
581 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
582 username, tty, full_hostname);
584 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s",
589 * Destroy environment unless user has requested its preservation.
590 * We need to do this before setusercontext() because that may
591 * set or reset some environment variables.
597 * PAM modules might add supplementary groups during pam_setcred().
599 if (setusercontext(lc, pwd, pwd->pw_uid, LOGIN_SETGROUP) != 0) {
600 syslog(LOG_ERR, "setusercontext() failed - exiting");
606 if ((e = pam_open_session(pamh, 0)) != PAM_SUCCESS) {
607 syslog(LOG_ERR, "pam_open_session: %s",
608 pam_strerror(pamh, e));
609 } else if ((e = pam_setcred(pamh, PAM_ESTABLISH_CRED))
611 syslog(LOG_ERR, "pam_setcred: %s",
612 pam_strerror(pamh, e));
616 * Add any environmental variables that the
617 * PAM modules may have set.
618 * Call *after* opening session!
621 environ_pam = pam_getenvlist(pamh);
623 export_pam_environment();
627 * We must fork() before setuid() because we need to call
628 * pam_close_session() as root.
636 /* parent - wait for child to finish, then cleanup
638 setproctitle("-%s [pam]", getprogname());
643 if ((e = pam_end(pamh, PAM_DATA_SILENT)) != PAM_SUCCESS)
644 syslog(LOG_ERR, "pam_end: %s",
645 pam_strerror(pamh, e));
651 * We don't need to be root anymore, so
652 * set the user and session context
654 if (setlogin(username) != 0) {
655 syslog(LOG_ERR, "setlogin(%s): %m - exiting", username);
658 if (setusercontext(lc, pwd, pwd->pw_uid,
659 LOGIN_SETALL & ~(LOGIN_SETLOGIN|LOGIN_SETGROUP)) != 0) {
660 syslog(LOG_ERR, "setusercontext() failed - exiting");
664 (void)setenv("SHELL", pwd->pw_shell, 1);
665 (void)setenv("HOME", pwd->pw_dir, 1);
666 if (term != NULL && *term != '\0')
667 (void)setenv("TERM", term, 1); /* Preset overrides */
669 (void)setenv("TERM", stypeof(tty), 0); /* Fallback doesn't */
671 (void)setenv("LOGNAME", username, 1);
672 (void)setenv("USER", username, 1);
673 (void)setenv("PATH", rootlogin ? _PATH_STDPATH : _PATH_DEFPATH, 0);
678 cw = login_getcapstr(lc, "copyright", NULL, NULL);
679 if (cw != NULL && access(cw, F_OK) == 0)
682 (void)printf("%s\n\t%s %s\n",
683 "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994",
684 "The Regents of the University of California. ",
685 "All rights reserved.");
689 cw = login_getcapstr(lc, "welcome", NULL, NULL);
690 if (cw == NULL || access(cw, F_OK) != 0)
694 cw = getenv("MAIL"); /* $MAIL may have been set by class */
696 strlcpy(tbuf, cw, sizeof(tbuf));
698 snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_MAILDIR,
700 if (stat(tbuf, &st) == 0 && st.st_size != 0)
701 (void)printf("You have %smail.\n",
702 (st.st_mtime > st.st_atime) ? "new " : "");
707 (void)signal(SIGALRM, SIG_DFL);
708 (void)signal(SIGQUIT, SIG_DFL);
709 (void)signal(SIGINT, SIG_DFL);
710 (void)signal(SIGTSTP, SIG_IGN);
713 if (system(_PATH_CHPASS) != 0)
718 * Login shells have a leading '-' in front of argv[0]
720 if (snprintf(tbuf, sizeof(tbuf), "-%s",
721 (p = strrchr(pwd->pw_shell, '/')) ? p + 1 : pwd->pw_shell) >=
723 syslog(LOG_ERR, "user: %s: shell exceeds maximum pathname size",
725 errx(1, "shell exceeds maximum pathname size");
728 execlp(shell, tbuf, (char *)0);
741 salt = pwd != NULL ? pwd->pw_passwd : "xx";
743 p = getpass(passwd_prompt);
747 if (!p[0] && pwd->pw_passwd[0])
749 if (strcmp(ep, pwd->pw_passwd) == 0)
753 /* clear entered password */
754 memset(p, 0, strlen(p));
760 * Attempt to authenticate the user using PAM. Returns 0 if the user is
761 * authenticated, or 1 if not authenticated. If some sort of PAM system
762 * error occurs (e.g., the "/etc/pam.conf" file is missing) then this
763 * function returns -1. This can be used as an indication that we should
764 * fall back to a different authentication mechanism.
769 const char *tmpl_user;
773 static struct pam_conv conv = { misc_conv, NULL };
775 if ((e = pam_start("login", username, &conv, &pamh)) != PAM_SUCCESS) {
776 syslog(LOG_ERR, "pam_start: %s", pam_strerror(pamh, e));
779 if ((e = pam_set_item(pamh, PAM_TTY, tty)) != PAM_SUCCESS) {
780 syslog(LOG_ERR, "pam_set_item(PAM_TTY): %s",
781 pam_strerror(pamh, e));
784 if (hostname != NULL &&
785 (e = pam_set_item(pamh, PAM_RHOST, full_hostname)) != PAM_SUCCESS) {
786 syslog(LOG_ERR, "pam_set_item(PAM_RHOST): %s",
787 pam_strerror(pamh, e));
790 e = pam_authenticate(pamh, 0);
795 * With PAM we support the concept of a "template"
796 * user. The user enters a login name which is
797 * authenticated by PAM, usually via a remote service
798 * such as RADIUS or TACACS+. If authentication
799 * succeeds, a different but related "template" name
800 * is used for setting the credentials, shell, and
801 * home directory. The name the user enters need only
802 * exist on the remote authentication server, but the
803 * template name must be present in the local password
806 * This is supported by two various mechanisms in the
807 * individual modules. However, from the application's
808 * point of view, the template user is always passed
809 * back as a changed value of the PAM_USER item.
811 if ((e = pam_get_item(pamh, PAM_USER, &item)) ==
813 tmpl_user = (const char *) item;
814 if (strcmp(username, tmpl_user) != 0)
815 pwd = getpwnam(tmpl_user);
817 syslog(LOG_ERR, "Couldn't get PAM_USER: %s",
818 pam_strerror(pamh, e));
823 case PAM_USER_UNKNOWN:
829 syslog(LOG_ERR, "pam_authenticate: %s", pam_strerror(pamh, e));
835 e = pam_acct_mgmt(pamh, 0);
836 if (e == PAM_NEW_AUTHTOK_REQD) {
837 e = pam_chauthtok(pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
838 if (e != PAM_SUCCESS) {
839 syslog(LOG_ERR, "pam_chauthtok: %s",
840 pam_strerror(pamh, e));
843 } else if (e != PAM_SUCCESS) {
849 if ((e = pam_end(pamh, e)) != PAM_SUCCESS) {
850 syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e));
858 export_pam_environment()
862 for (pp = environ_pam; *pp != NULL; pp++) {
863 if (ok_to_export(*pp))
871 * Sanity checks on PAM environmental variables:
872 * - Make sure there is an '=' in the string.
873 * - Make sure the string doesn't run on too long.
874 * - Do not export certain variables. This list was taken from the
875 * Solaris pam_putenv(3) man page.
881 static const char *noexport[] = {
882 "SHELL", "HOME", "LOGNAME", "MAIL", "CDPATH",
888 if (strlen(s) > 1024 || strchr(s, '=') == NULL)
890 if (strncmp(s, "LD_", 3) == 0)
892 for (pp = noexport; *pp != NULL; pp++) {
894 if (s[n] == '=' && strncmp(s, *pp, n) == 0)
905 (void)fprintf(stderr, "usage: login [-fp] [-h hostname] [username]\n");
910 * Allow for authentication style and/or kerberos instance
913 #define NBUFSIZ UT_NAMESIZE + 64
920 static char nbuf[NBUFSIZ];
923 (void)printf("%s", prompt);
924 for (p = nbuf; (ch = getchar()) != '\n'; ) {
929 if (p < nbuf + (NBUFSIZ - 1))
934 (void)fprintf(stderr,
935 "login names may not start with '-'.\n");
951 return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
954 volatile int motdinterrupt;
971 if ((fd = open(motdfile, O_RDONLY, 0)) < 0)
974 oldint = signal(SIGINT, sigint);
975 while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0 && !motdinterrupt)
976 (void)write(fileno(stdout), tbuf, nchars);
977 (void)signal(SIGINT, oldint);
987 longjmp(timeout_buf, signo);
998 if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) {
999 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
1001 if (read(fd, (char *)&ll, sizeof(ll)) == sizeof(ll) &&
1003 (void)printf("Last login: %.*s ",
1004 24-5, (char *)ctime(&ll.ll_time));
1005 if (*ll.ll_host != '\0')
1006 (void)printf("from %.*s\n",
1007 (int)sizeof(ll.ll_host),
1010 (void)printf("on %.*s\n",
1011 (int)sizeof(ll.ll_line),
1014 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
1016 memset((void *)&ll, 0, sizeof(ll));
1017 (void)time(&ll.ll_time);
1018 (void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
1020 (void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
1021 (void)write(fd, (char *)&ll, sizeof(ll));
1024 syslog(LOG_ERR, "cannot open %s: %m", _PATH_LASTLOG);
1036 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s",
1037 failures, failures > 1 ? "S" : "", full_hostname);
1038 syslog(LOG_AUTHPRIV|LOG_NOTICE,
1039 "%d LOGIN FAILURE%s FROM %s, %s",
1040 failures, failures > 1 ? "S" : "", full_hostname, name);
1042 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s",
1043 failures, failures > 1 ? "S" : "", tty);
1044 syslog(LOG_AUTHPRIV|LOG_NOTICE,
1045 "%d LOGIN FAILURE%s ON %s, %s",
1046 failures, failures > 1 ? "S" : "", tty, name);
1052 #define UNKNOWN "su"
1060 if (ttyid != NULL && *ttyid != '\0') {
1061 t = getttynam(ttyid);
1062 if (t != NULL && t->ty_type != NULL)
1063 return (t->ty_type);
1069 refused(msg, rtype, lout)
1076 printf("%s.\n", msg);
1078 syslog(LOG_NOTICE, "LOGIN %s REFUSED (%s) FROM %s ON TTY %s",
1079 pwd->pw_name, rtype, full_hostname, tty);
1081 syslog(LOG_NOTICE, "LOGIN %s REFUSED (%s) ON TTY %s",
1082 pwd->pw_name, rtype, tty);