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[] =
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/openpam.h>
87 #include "pathnames.h"
89 void badlogin(char *);
90 void checknologin(void);
92 void getloginname(void);
93 void motd(const char *);
97 void refused(char *,char *,int);
98 char *stypeof(char *);
100 int login_access(char *, char *);
101 void login_fbtab(char *, uid_t, gid_t);
104 static int auth_pam(void);
105 static int export_pam_environment(void);
106 static int ok_to_export(const char *);
108 static pam_handle_t *pamh = NULL;
109 static char **environ_pam;
112 if ((e = pam_setcred(pamh, PAM_DELETE_CRED)) != PAM_SUCCESS) \
113 syslog(LOG_ERR, "pam_setcred: %s", pam_strerror(pamh, e)); \
114 if ((e = pam_close_session(pamh,0)) != PAM_SUCCESS) \
115 syslog(LOG_ERR, "pam_close_session: %s", pam_strerror(pamh, e)); \
116 if ((e = pam_end(pamh, e)) != PAM_SUCCESS) \
117 syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e)); \
121 static int auth_traditional(void);
122 extern void login(struct utmp *);
123 static void usage(void);
125 #define TTYGRPNAME "tty" /* name of group to own ttys */
126 #define DEFAULT_BACKOFF 3
127 #define DEFAULT_RETRIES 10
128 #define DEFAULT_PROMPT "login: "
129 #define DEFAULT_PASSWD_PROMPT "Password:"
132 * This bounds the time given to login. Not a define so it can
133 * be patched on machines where it's too small.
137 /* Buffer for signal handling of timeout */
142 char *term, *envinit[1], *hostname, *tty, *username;
143 const char *passwd_prompt, *prompt;
144 char full_hostname[MAXHOSTNAMELEN];
151 extern char **environ;
156 int rootok, retries, backoff;
157 int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval;
163 char tbuf[MAXPATHLEN + 2];
164 char tname[sizeof(_PATH_TTY) + 10];
165 const char *shell = NULL;
166 login_cap_t *lc = NULL;
172 (void)signal(SIGQUIT, SIG_IGN);
173 (void)signal(SIGINT, SIG_IGN);
174 (void)signal(SIGHUP, SIG_IGN);
175 if (setjmp(timeout_buf)) {
178 (void)fprintf(stderr, "Login timed out after %d seconds\n",
182 (void)signal(SIGALRM, timedout);
183 (void)alarm(timeout);
184 (void)setpriority(PRIO_PROCESS, 0, 0);
186 openlog("login", LOG_ODELAY, LOG_AUTH);
189 * -p is used by getty to tell login not to destroy the environment
190 * -f is used to skip a second login authentication
191 * -h is used by other servers to pass the name of the remote
192 * host to login so that it may be placed in utmp and wtmp
194 *full_hostname = '\0';
197 fflag = hflag = pflag = 0;
201 while ((ch = getopt(argc, argv, "fh:p")) != -1)
208 errx(1, "-h option: %s", strerror(EPERM));
210 if (strlcpy(full_hostname, optarg,
211 sizeof(full_hostname)) >= sizeof(full_hostname))
212 errx(1, "-h option: %s: exceeds maximum "
213 "hostname size", optarg);
215 trimdomain(optarg, UT_HOSTSIZE);
217 if (strlen(optarg) > UT_HOSTSIZE) {
218 struct addrinfo hints, *res;
221 memset(&hints, 0, sizeof(hints));
222 hints.ai_family = AF_UNSPEC;
223 ga_err = getaddrinfo(optarg, NULL, &hints,
226 char hostbuf[MAXHOSTNAMELEN];
228 getnameinfo(res->ai_addr,
231 sizeof(hostbuf), NULL, 0,
233 optarg = strdup(hostbuf);
234 if (optarg == NULL) {
240 optarg = "invalid hostname";
252 syslog(LOG_ERR, "invalid flag %c", ch);
264 for (cnt = getdtablesize(); cnt > 2; cnt--)
267 ttyn = ttyname(STDIN_FILENO);
268 if (ttyn == NULL || *ttyn == '\0') {
269 (void)snprintf(tname, sizeof(tname), "%s??", _PATH_TTY);
272 if ((tty = strrchr(ttyn, '/')) != NULL)
278 * Get "login-retries" & "login-backoff" from default class
280 lc = login_getclass(NULL);
281 prompt = login_getcapstr(lc, "prompt", DEFAULT_PROMPT, DEFAULT_PROMPT);
282 passwd_prompt = login_getcapstr(lc, "passwd_prompt",
283 DEFAULT_PASSWD_PROMPT, DEFAULT_PASSWD_PROMPT);
284 retries = login_getcapnum(lc, "login-retries", DEFAULT_RETRIES,
286 backoff = login_getcapnum(lc, "login-backoff", DEFAULT_BACKOFF,
291 for (cnt = 0;; ask = 1) {
297 rootok = rootterm(tty); /* Default (auth may change) */
299 if (strlen(username) > UT_NAMESIZE)
300 username[UT_NAMESIZE] = '\0';
303 * Note if trying multiple user names; log failures for
304 * previous user name, but don't bother logging one failure
305 * for nonexistent name (mistyped username).
307 if (failures && strcmp(tbuf, username)) {
308 if (failures > (pwd ? 0 : 1))
311 (void)strlcpy(tbuf, username, sizeof(tbuf));
313 pwd = getpwnam(username);
316 * if we have a valid account name, and it doesn't have a
317 * password, or the -f option was specified and the caller
318 * is root or the caller isn't changing their uid, don't
322 if (pwd->pw_uid == 0)
325 if (fflag && (uid == (uid_t)0 ||
326 uid == (uid_t)pwd->pw_uid)) {
327 /* already authenticated */
329 } else if (pwd->pw_passwd[0] == '\0') {
330 if (!rootlogin || rootok) {
331 /* pretend password okay */
340 (void)setpriority(PRIO_PROCESS, 0, -4);
344 * Try to authenticate using PAM. If a PAM system error
345 * occurs, perhaps because of a botched configuration,
346 * then fall back to using traditional Unix authentication.
348 if ((rval = auth_pam()) == -1)
350 rval = auth_traditional();
352 (void)setpriority(PRIO_PROCESS, 0, 0);
356 * PAM authentication may have changed "pwd" to the
357 * entry for the template user. Check again to see if
358 * this is a root login after all.
360 if (pwd != NULL && pwd->pw_uid == 0)
366 * If trying to log in as root without Kerberos,
367 * but with insecure terminal, refuse the login attempt.
370 if (rootlogin && !rootok)
371 refused(NULL, "NOROOT", 0);
372 else /* valid password & authenticated */
376 (void)printf("Login incorrect\n");
380 * we allow up to 'retry' (10) tries,
381 * but after 'backoff' (3) we start backing off
383 if (++cnt > backoff) {
384 if (cnt >= retries) {
388 sleep((u_int)((cnt - backoff) * 5));
392 /* committed to login -- turn off timeout */
393 (void)alarm((u_int)0);
394 (void)signal(SIGHUP, SIG_DFL);
399 * Establish the login class.
401 lc = login_getpwclass(pwd);
403 /* if user not super-user, check for disabled logins */
405 auth_checknologin(lc);
407 quietlog = login_getcapbool(lc, "hushlogin", 0);
409 * Switching needed for NFS with root access disabled.
411 * XXX: This change fails to modify the additional groups for the
412 * process, and as such, may restrict rights normally granted
413 * through those groups.
415 (void)setegid(pwd->pw_gid);
416 (void)seteuid(rootlogin ? 0 : pwd->pw_uid);
417 if (!*pwd->pw_dir || chdir(pwd->pw_dir) < 0) {
418 if (login_getcapbool(lc, "requirehome", 0))
419 refused("Home directory not available", "HOMEDIR", 1);
421 refused("Cannot find root directory", "ROOTDIR", 1);
422 if (!quietlog || *pwd->pw_dir)
423 printf("No home directory.\nLogging in with home = \"/\".\n");
429 quietlog = access(_PATH_HUSHLOGIN, F_OK) == 0;
431 if (pwd->pw_change || pwd->pw_expire)
432 (void)gettimeofday(&tp, (struct timezone *)NULL);
434 #define DEFAULT_WARN (2L * 7L * 86400L) /* Two weeks */
436 warntime = login_getcaptime(lc, "warnexpire", DEFAULT_WARN,
439 if (pwd->pw_expire) {
440 if (tp.tv_sec >= pwd->pw_expire) {
441 refused("Sorry -- your account has expired", "EXPIRED",
443 } else if (pwd->pw_expire - tp.tv_sec < warntime && !quietlog)
444 (void)printf("Warning: your account expires on %s",
445 ctime(&pwd->pw_expire));
448 warntime = login_getcaptime(lc, "warnpassword", DEFAULT_WARN,
452 if (pwd->pw_change) {
453 if (tp.tv_sec >= pwd->pw_change) {
454 (void)printf("Sorry -- your password has expired.\n");
456 syslog(LOG_INFO, "%s Password expired - forcing change",
458 } else if (pwd->pw_change - tp.tv_sec < warntime && !quietlog)
459 (void)printf("Warning: your password expires on %s",
460 ctime(&pwd->pw_change));
465 struct addrinfo hints, *res;
468 memset(&hints, 0, sizeof(hints));
469 hints.ai_family = AF_UNSPEC;
470 ga_err = getaddrinfo(full_hostname, NULL, &hints,
473 char hostbuf[MAXHOSTNAMELEN];
475 getnameinfo(res->ai_addr, res->ai_addrlen,
476 hostbuf, sizeof(hostbuf), NULL, 0,
478 if ((optarg = strdup(hostbuf)) == NULL) {
479 syslog(LOG_NOTICE, "strdup(): %m");
486 if (!auth_hostok(lc, full_hostname, optarg))
487 refused("Permission denied", "HOST", 1);
490 if (!auth_ttyok(lc, tty))
491 refused("Permission denied", "TTY", 1);
493 if (!auth_timeok(lc, time(NULL)))
494 refused("Logins not available right now", "TIME", 1);
496 shell = login_getcapstr(lc, "shell", pwd->pw_shell, pwd->pw_shell);
497 if (*pwd->pw_shell == '\0')
498 pwd->pw_shell = _PATH_BSHELL;
499 if (*shell == '\0') /* Not overridden */
500 shell = pwd->pw_shell;
501 if ((shell = strdup(shell)) == NULL) {
502 syslog(LOG_NOTICE, "strdup(): %m");
507 if (login_access(pwd->pw_name, hostname ? full_hostname : tty) == 0)
508 refused("Permission denied", "ACCESS", 1);
509 #endif /* LOGIN_ACCESS */
511 /* Nothing else left to fail -- really log in. */
512 memset((void *)&utmp, 0, sizeof(utmp));
513 (void)time(&utmp.ut_time);
514 (void)strncpy(utmp.ut_name, username, sizeof(utmp.ut_name));
516 (void)strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host));
517 (void)strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line));
523 * Set device protections, depending on what terminal the
524 * user is logged in. This feature is used on Suns to give
525 * console users better privacy.
527 login_fbtab(tty, pwd->pw_uid, pwd->pw_gid);
530 * Clear flags of the tty. None should be set, and when the
531 * user sets them otherwise, this can cause the chown to fail.
532 * Since it isn't clear that flags are useful on character
533 * devices, we just clear them.
535 if (chflags(ttyn, 0) && errno != EOPNOTSUPP)
536 syslog(LOG_ERR, "chmod(%s): %m", ttyn);
537 if (chown(ttyn, pwd->pw_uid,
538 (gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid))
539 syslog(LOG_ERR, "chmod(%s): %m", ttyn);
543 * Preserve TERM if it happens to be already set.
545 if ((term = getenv("TERM")) != NULL) {
546 if ((term = strdup(term)) == NULL) {
554 * Exclude cons/vt/ptys only, assume dialup otherwise
555 * TODO: Make dialup tty determination a library call
556 * for consistency (finger etc.)
558 if (hostname==NULL && isdialuptty(tty))
559 syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name);
563 * Syslog each successful login, so we don't have to watch hundreds
564 * of wtmp or lastlogin files.
567 syslog(LOG_INFO, "login from %s on %s as %s",
568 full_hostname, tty, pwd->pw_name);
570 syslog(LOG_INFO, "login on %s as %s",
575 * If fflag is on, assume caller/authenticator has logged root login.
577 if (rootlogin && fflag == 0)
580 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
581 username, tty, full_hostname);
583 syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s",
588 * Destroy environment unless user has requested its preservation.
589 * We need to do this before setusercontext() because that may
590 * set or reset some environment variables.
596 * PAM modules might add supplementary groups during pam_setcred().
598 if (setusercontext(lc, pwd, pwd->pw_uid, LOGIN_SETGROUP) != 0) {
599 syslog(LOG_ERR, "setusercontext() failed - exiting");
605 if ((e = pam_open_session(pamh, 0)) != PAM_SUCCESS) {
606 syslog(LOG_ERR, "pam_open_session: %s",
607 pam_strerror(pamh, e));
608 } else if ((e = pam_setcred(pamh, PAM_ESTABLISH_CRED))
610 syslog(LOG_ERR, "pam_setcred: %s",
611 pam_strerror(pamh, e));
615 * Add any environmental variables that the
616 * PAM modules may have set.
617 * Call *after* opening session!
620 environ_pam = pam_getenvlist(pamh);
622 export_pam_environment();
626 * We must fork() before setuid() because we need to call
627 * pam_close_session() as root.
635 /* parent - wait for child to finish, then cleanup
641 if ((e = pam_end(pamh, 0)) != PAM_SUCCESS)
642 syslog(LOG_ERR, "pam_end: %s",
643 pam_strerror(pamh, e));
649 * We don't need to be root anymore, so
650 * set the user and session context
652 if (setlogin(username) != 0) {
653 syslog(LOG_ERR, "setlogin(%s): %m - exiting", username);
656 if (setusercontext(lc, pwd, pwd->pw_uid,
657 LOGIN_SETALL & ~(LOGIN_SETLOGIN|LOGIN_SETGROUP)) != 0) {
658 syslog(LOG_ERR, "setusercontext() failed - exiting");
662 (void)setenv("SHELL", pwd->pw_shell, 1);
663 (void)setenv("HOME", pwd->pw_dir, 1);
664 if (term != NULL && *term != '\0')
665 (void)setenv("TERM", term, 1); /* Preset overrides */
667 (void)setenv("TERM", stypeof(tty), 0); /* Fallback doesn't */
669 (void)setenv("LOGNAME", username, 1);
670 (void)setenv("USER", username, 1);
671 (void)setenv("PATH", rootlogin ? _PATH_STDPATH : _PATH_DEFPATH, 0);
676 cw = login_getcapstr(lc, "copyright", NULL, NULL);
677 if (cw != NULL && access(cw, F_OK) == 0)
680 (void)printf("%s\n\t%s %s\n",
681 "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994",
682 "The Regents of the University of California. ",
683 "All rights reserved.");
687 cw = login_getcapstr(lc, "welcome", NULL, NULL);
688 if (cw == NULL || access(cw, F_OK) != 0)
692 cw = getenv("MAIL"); /* $MAIL may have been set by class */
694 strlcpy(tbuf, cw, sizeof(tbuf));
696 snprintf(tbuf, sizeof(tbuf), "%s/%s", _PATH_MAILDIR,
698 if (stat(tbuf, &st) == 0 && st.st_size != 0)
699 (void)printf("You have %smail.\n",
700 (st.st_mtime > st.st_atime) ? "new " : "");
705 (void)signal(SIGALRM, SIG_DFL);
706 (void)signal(SIGQUIT, SIG_DFL);
707 (void)signal(SIGINT, SIG_DFL);
708 (void)signal(SIGTSTP, SIG_IGN);
711 * Login shells have a leading '-' in front of argv[0]
713 if (snprintf(tbuf, sizeof(tbuf), "-%s",
714 (p = strrchr(pwd->pw_shell, '/')) ? p + 1 : pwd->pw_shell) >=
716 syslog(LOG_ERR, "user: %s: shell exceeds maximum pathname size",
718 errx(1, "shell exceeds maximum pathname size");
721 execlp(shell, tbuf, (char *)0);
734 salt = pwd != NULL ? pwd->pw_passwd : "xx";
736 p = getpass(passwd_prompt);
740 if (!p[0] && pwd->pw_passwd[0])
742 if (strcmp(ep, pwd->pw_passwd) == 0)
746 /* clear entered password */
747 memset(p, 0, strlen(p));
753 * Attempt to authenticate the user using PAM. Returns 0 if the user is
754 * authenticated, or 1 if not authenticated. If some sort of PAM system
755 * error occurs (e.g., the "/etc/pam.conf" file is missing) then this
756 * function returns -1. This can be used as an indication that we should
757 * fall back to a different authentication mechanism.
762 const char *tmpl_user;
766 static struct pam_conv conv = { openpam_ttyconv, NULL };
768 if ((e = pam_start("login", username, &conv, &pamh)) != PAM_SUCCESS) {
769 syslog(LOG_ERR, "pam_start: %s", pam_strerror(pamh, e));
772 if ((e = pam_set_item(pamh, PAM_TTY, tty)) != PAM_SUCCESS) {
773 syslog(LOG_ERR, "pam_set_item(PAM_TTY): %s",
774 pam_strerror(pamh, e));
777 if (hostname != NULL &&
778 (e = pam_set_item(pamh, PAM_RHOST, full_hostname)) != PAM_SUCCESS) {
779 syslog(LOG_ERR, "pam_set_item(PAM_RHOST): %s",
780 pam_strerror(pamh, e));
783 e = pam_authenticate(pamh, 0);
788 * With PAM we support the concept of a "template"
789 * user. The user enters a login name which is
790 * authenticated by PAM, usually via a remote service
791 * such as RADIUS or TACACS+. If authentication
792 * succeeds, a different but related "template" name
793 * is used for setting the credentials, shell, and
794 * home directory. The name the user enters need only
795 * exist on the remote authentication server, but the
796 * template name must be present in the local password
799 * This is supported by two various mechanisms in the
800 * individual modules. However, from the application's
801 * point of view, the template user is always passed
802 * back as a changed value of the PAM_USER item.
804 if ((e = pam_get_item(pamh, PAM_USER, &item)) ==
806 tmpl_user = (const char *) item;
807 if (strcmp(username, tmpl_user) != 0)
808 pwd = getpwnam(tmpl_user);
810 syslog(LOG_ERR, "Couldn't get PAM_USER: %s",
811 pam_strerror(pamh, e));
816 case PAM_USER_UNKNOWN:
822 syslog(LOG_ERR, "pam_authenticate: %s", pam_strerror(pamh, e));
828 e = pam_acct_mgmt(pamh, 0);
829 if (e == PAM_NEW_AUTHTOK_REQD) {
830 e = pam_chauthtok(pamh, PAM_CHANGE_EXPIRED_AUTHTOK);
831 if (e != PAM_SUCCESS) {
832 syslog(LOG_ERR, "pam_chauthtok: %s",
833 pam_strerror(pamh, e));
836 } else if (e != PAM_SUCCESS) {
842 if ((e = pam_end(pamh, e)) != PAM_SUCCESS) {
843 syslog(LOG_ERR, "pam_end: %s", pam_strerror(pamh, e));
851 export_pam_environment()
855 for (pp = environ_pam; *pp != NULL; pp++) {
856 if (ok_to_export(*pp))
864 * Sanity checks on PAM environmental variables:
865 * - Make sure there is an '=' in the string.
866 * - Make sure the string doesn't run on too long.
867 * - Do not export certain variables. This list was taken from the
868 * Solaris pam_putenv(3) man page.
874 static const char *noexport[] = {
875 "SHELL", "HOME", "LOGNAME", "MAIL", "CDPATH",
881 if (strlen(s) > 1024 || strchr(s, '=') == NULL)
883 if (strncmp(s, "LD_", 3) == 0)
885 for (pp = noexport; *pp != NULL; pp++) {
887 if (s[n] == '=' && strncmp(s, *pp, n) == 0)
898 (void)fprintf(stderr, "usage: login [-fp] [-h hostname] [username]\n");
903 * Allow for authentication style and/or kerberos instance
906 #define NBUFSIZ UT_NAMESIZE + 64
913 static char nbuf[NBUFSIZ];
916 (void)printf("%s", prompt);
917 for (p = nbuf; (ch = getchar()) != '\n'; ) {
922 if (p < nbuf + (NBUFSIZ - 1))
927 (void)fprintf(stderr,
928 "login names may not start with '-'.\n");
944 return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
947 volatile int motdinterrupt;
958 const char *motdfile;
964 if ((fd = open(motdfile, O_RDONLY, 0)) < 0)
967 oldint = signal(SIGINT, sigint);
968 while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0 && !motdinterrupt)
969 (void)write(fileno(stdout), tbuf, nchars);
970 (void)signal(SIGINT, oldint);
980 longjmp(timeout_buf, signo);
991 if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) {
992 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
994 if (read(fd, (char *)&ll, sizeof(ll)) == sizeof(ll) &&
996 (void)printf("Last login: %.*s ",
997 24-5, (char *)ctime(&ll.ll_time));
998 if (*ll.ll_host != '\0')
999 (void)printf("from %.*s\n",
1000 (int)sizeof(ll.ll_host),
1003 (void)printf("on %.*s\n",
1004 (int)sizeof(ll.ll_line),
1007 (void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
1009 memset((void *)&ll, 0, sizeof(ll));
1010 (void)time(&ll.ll_time);
1011 (void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
1013 (void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
1014 (void)write(fd, (char *)&ll, sizeof(ll));
1017 syslog(LOG_ERR, "cannot open %s: %m", _PATH_LASTLOG);
1029 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s",
1030 failures, failures > 1 ? "S" : "", full_hostname);
1031 syslog(LOG_AUTHPRIV|LOG_NOTICE,
1032 "%d LOGIN FAILURE%s FROM %s, %s",
1033 failures, failures > 1 ? "S" : "", full_hostname, name);
1035 syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s",
1036 failures, failures > 1 ? "S" : "", tty);
1037 syslog(LOG_AUTHPRIV|LOG_NOTICE,
1038 "%d LOGIN FAILURE%s ON %s, %s",
1039 failures, failures > 1 ? "S" : "", tty, name);
1045 #define UNKNOWN "su"
1053 if (ttyid != NULL && *ttyid != '\0') {
1054 t = getttynam(ttyid);
1055 if (t != NULL && t->ty_type != NULL)
1056 return (t->ty_type);
1062 refused(msg, rtype, lout)
1069 printf("%s.\n", msg);
1071 syslog(LOG_NOTICE, "LOGIN %s REFUSED (%s) FROM %s ON TTY %s",
1072 pwd->pw_name, rtype, full_hostname, tty);
1074 syslog(LOG_NOTICE, "LOGIN %s REFUSED (%s) ON TTY %s",
1075 pwd->pw_name, rtype, tty);