-/*
- * Copyright (c) 1980, 1987, 1988 The Regents of the University of California.
- * All rights reserved.
+/*-
+ * Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
*
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * %sccs.include.redist.c%
*/
#ifndef lint
-char copyright[] =
-"@(#) Copyright (c) 1980, 1987, 1988 The Regents of the University of California.\n\
- All rights reserved.\n";
+static char copyright[] =
+"@(#) Copyright (c) 1980, 1987, 1988, 1991, 1993, 1994\n\
+ The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
-static char sccsid[] = "@(#)login.c 5.32.1.1 (Berkeley) %G%";
+static char sccsid[] = "@(#)login.c 8.4 (Berkeley) %G%";
#endif /* not lint */
/*
* login [ name ]
+ * login -r hostname (for rlogind)
* login -h hostname (for telnetd, etc.)
* login -f name (for pre-authenticated login: datakit, xterm, etc.)
*/
#include <sys/param.h>
-#include <sys/quota.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/file.h>
-#include <sys/ioctl.h>
-#include <utmp.h>
-#include <signal.h>
-#include <lastlog.h>
+#include <err.h>
#include <errno.h>
-#include <ttyent.h>
-#include <syslog.h>
#include <grp.h>
#include <pwd.h>
#include <setjmp.h>
+#include <signal.h>
#include <stdio.h>
-#include <strings.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <ttyent.h>
+#include <tzfile.h>
+#include <unistd.h>
+#include <utmp.h>
-#define TTYGRPNAME "tty" /* name of group to own ttys */
+#include "pathnames.h"
+
+void badlogin __P((char *));
+void checknologin __P((void));
+void dolastlog __P((int));
+void getloginname __P((void));
+void motd __P((void));
+int rootterm __P((char *));
+void sigint __P((int));
+void sleepexit __P((int));
+char *stypeof __P((char *));
+void timedout __P((int));
+#ifdef KERBEROS
+int klogin __P((struct passwd *, char *, char *, char *));
+#endif
+
+extern void login __P((struct utmp *));
-#define MOTDFILE "/etc/motd"
-#define MAILDIR "/usr/spool/mail"
-#define NOLOGIN "/etc/nologin"
-#define HUSHLOGIN ".hushlogin"
-#define LASTLOG "/usr/adm/lastlog"
-#define BSHELL "/bin/sh"
+#define TTYGRPNAME "tty" /* name of group to own ttys */
/*
* This bounds the time given to login. Not a define so it can
* be patched on machines where it's too small.
*/
-int timeout = 300;
+u_int timeout = 300;
+
+#ifdef KERBEROS
+int notickets = 1;
+char *instance;
+char *krbtkfile_env;
+int authok;
+#endif
struct passwd *pwd;
int failures;
-char term[64], *hostname, *username, *tty;
+char term[64], *envinit[1], *hostname, *username, *tty;
-struct sgttyb sgttyb;
-struct tchars tc = {
- CINTR, CQUIT, CSTART, CSTOP, CEOT, CBRK
-};
-struct ltchars ltc = {
- CSUSP, CDSUSP, CRPRNT, CFLUSH, CWERASE, CLNEXT
-};
+int
+char *months[] =
+ { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug",
+ "Sep", "Oct", "Nov", "Dec" };
main(argc, argv)
int argc;
- char **argv;
+ char *argv[];
{
- extern int errno, optind;
- extern char *optarg, **environ;
+ extern char **environ;
struct group *gr;
- register int ch;
- register char *p;
- int ask, fflag, hflag, pflag, cnt;
- int quietlog, passwd_req, ioctlval, timedout();
- char *domain, *salt, *envinit[1], *ttyn, *pp;
- char tbuf[MAXPATHLEN + 2];
- char *ttyname(), *stypeof(), *crypt(), *getpass();
- time_t time();
- off_t lseek();
+ struct stat st;
+ struct timeval tp;
+ struct utmp utmp;
+ int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval;
+ uid_t uid;
+ char *domain, *p, *salt, *ttyn;
+ char tbuf[MAXPATHLEN + 2], tname[sizeof(_PATH_TTY) + 10];
+ char localhost[MAXHOSTNAMELEN];
(void)signal(SIGALRM, timedout);
- (void)alarm((u_int)timeout);
+ (void)alarm(timeout);
(void)signal(SIGQUIT, SIG_IGN);
(void)signal(SIGINT, SIG_IGN);
(void)setpriority(PRIO_PROCESS, 0, 0);
- (void)quota(Q_SETUID, 0, 0, 0);
+
+ openlog("login", LOG_ODELAY, LOG_AUTH);
/*
* -p is used by getty to tell login not to destroy the environment
- * -f is used to skip a second login authentication
+ * -r is used by rlogind to cause the autologin protocol;
+ * -f is used to skip a second login authentication
* -h is used by other servers to pass the name of the remote
* host to login so that it may be placed in utmp and wtmp
*/
- (void)gethostname(tbuf, sizeof(tbuf));
- domain = index(tbuf, '.');
+ domain = NULL;
+ if (gethostname(localhost, sizeof(localhost)) < 0)
+ syslog(LOG_ERR, "couldn't get local hostname: %m");
+ else
+ domain = strchr(localhost, '.');
- fflag = hflag = pflag = 0;
- passwd_req = 1;
- while ((ch = getopt(argc, argv, "fh:p")) != EOF)
+ fflag = hflag = pflag = rflag = 0;
+ uid = getuid();
+ while ((ch = getopt(argc, argv, "fh:pr:")) != EOF)
switch (ch) {
case 'f':
+ if (rflag) {
+ fprintf(stderr,
+ "login: only one of -r and -f allowed.\n");
+ exit(1);
+ }
fflag = 1;
break;
case 'h':
- if (getuid()) {
+ if (uid)
+ errx(1, "-h option: %s", strerror(EPERM));
+ if (rflag) {
fprintf(stderr,
- "login: -h for super-user only.\n");
+ "login: only one of -r and -h allowed.\n");
exit(1);
}
hflag = 1;
- if (domain && (p = index(optarg, '.')) &&
+ if (domain && (p = strchr(optarg, '.')) &&
strcasecmp(p, domain) == 0)
*p = 0;
hostname = optarg;
case 'p':
pflag = 1;
break;
+ case 'r':
+ if (hflag || fflag) {
+ fprintf(stderr,
+ "login: -f and -h not allowed with -r.\n");
+ exit(1);
+ }
+ if (getuid()) {
+ fprintf(stderr,
+ "login: -r for super-user only.\n");
+ exit(1);
+ }
+ /* "-r hostname" must be last args */
+ if (optind != argc) {
+ fprintf(stderr, "Syntax error.\n");
+ exit(1);
+ }
+ rflag = 1;
+ passwd_req = (doremotelogin(optarg) == -1);
+ if (domain && (p = index(optarg, '.')) &&
+ !strcmp(p, domain))
+ *p = '\0';
+ hostname = optarg;
+ break;
case '?':
default:
- fprintf(stderr, "usage: login [-fp] [username]\n");
+ if (!uid)
+ syslog(LOG_ERR, "invalid flag %c", ch);
+ (void)fprintf(stderr,
+ "usage: login [-fp] [-h hostname] [username]\n");
exit(1);
}
argc -= optind;
argv += optind;
+
if (*argv) {
username = *argv;
ask = 0;
} else
ask = 1;
-
- ioctlval = 0;
- (void)ioctl(0, TIOCLSET, &ioctlval);
- (void)ioctl(0, TIOCNXCL, 0);
- (void)fcntl(0, F_SETFL, ioctlval);
- (void)ioctl(0, TIOCGETP, &sgttyb);
- sgttyb.sg_erase = CERASE;
- sgttyb.sg_kill = CKILL;
- (void)ioctl(0, TIOCSLTC, <c);
- (void)ioctl(0, TIOCSETC, &tc);
- (void)ioctl(0, TIOCSETP, &sgttyb);
+ if (rflag)
+ ask = 0;
for (cnt = getdtablesize(); cnt > 2; cnt--)
- close(cnt);
+ (void)close(cnt);
- ttyn = ttyname(0);
- if (ttyn == NULL || *ttyn == '\0')
- ttyn = "/dev/tty??";
- if (tty = rindex(ttyn, '/'))
+ ttyn = ttyname(STDIN_FILENO);
+ if (ttyn == NULL || *ttyn == '\0') {
+ (void)snprintf(tname, sizeof(tname), "%s??", _PATH_TTY);
+ ttyn = tname;
+ }
+ if (tty = strrchr(ttyn, '/'))
++tty;
else
tty = ttyn;
- openlog("login", LOG_ODELAY, LOG_AUTH);
-
for (cnt = 0;; ask = 1) {
- ioctlval = 0;
- (void)ioctl(0, TIOCSETD, &ioctlval);
-
if (ask) {
fflag = 0;
getloginname();
}
+ rootlogin = 0;
+#ifdef KERBEROS
+ if ((instance = strchr(username, '.')) != NULL) {
+ if (strncmp(instance, ".root", 5) == 0)
+ rootlogin = 1;
+ *instance++ = '\0';
+ } else
+ instance = "";
+#endif
+ if (strlen(username) > UT_NAMESIZE)
+ username[UT_NAMESIZE] = '\0';
+
/*
- * Note if trying multiple user names;
- * log failures for previous user name,
- * but don't bother logging one failure
+ * Note if trying multiple user names; log failures for
+ * previous user name, but don't bother logging one failure
* for nonexistent name (mistyped username).
*/
if (failures && strcmp(tbuf, username)) {
failures = 0;
}
(void)strcpy(tbuf, username);
+
if (pwd = getpwnam(username))
salt = pwd->pw_passwd;
else
salt = "xx";
- /* if user not super-user, check for disabled logins */
- if (pwd == NULL || pwd->pw_uid)
- checknologin();
-
/*
- * Disallow automatic login to root; if not invoked by
- * root, disallow if the uid's differ.
+ * if we have a valid account name, and it doesn't have a
+ * password, or the -f option was specified and the caller
+ * is root or the caller isn't changing their uid, don't
+ * authenticate.
*/
- if (fflag && pwd) {
- int uid = getuid();
-
- passwd_req = pwd->pw_uid == 0 ||
- (uid && uid != pwd->pw_uid);
+ if (pwd && (*pwd->pw_passwd == '\0' ||
+ fflag && (uid == 0 || uid == pwd->pw_uid)))
+ break;
+ fflag = 0;
+ if (pwd && pwd->pw_uid == 0)
+ rootlogin = 1;
+
+ (void)setpriority(PRIO_PROCESS, 0, -4);
+
+ p = getpass("Password:");
+
+ if (pwd) {
+#ifdef KERBEROS
+ rval = klogin(pwd, instance, localhost, p);
+ if (rval != 0 && rootlogin && pwd->pw_uid != 0)
+ rootlogin = 0;
+ if (rval == 0)
+ authok = 1;
+ else if (rval == 1)
+ rval = strcmp(crypt(p, salt), pwd->pw_passwd);
+#else
+ rval = strcmp(crypt(p, salt), pwd->pw_passwd);
+#endif
}
+ memset(p, 0, strlen(p));
+
+ (void)setpriority(PRIO_PROCESS, 0, 0);
/*
- * If no pre-authentication and a password exists
- * for this user, prompt for one and verify it.
+ * If trying to log in as root without Kerberos,
+ * but with insecure terminal, refuse the login attempt.
*/
- if (!passwd_req || (pwd && !*pwd->pw_passwd))
- break;
-
- setpriority(PRIO_PROCESS, 0, -4);
- pp = getpass("Password:");
- p = crypt(pp, salt);
- setpriority(PRIO_PROCESS, 0, 0);
+#ifdef KERBEROS
+ if (authok == 0)
+#endif
+ if (pwd && rootlogin && !rootterm(tty)) {
+ (void)fprintf(stderr,
+ "%s login refused on this terminal.\n",
+ pwd->pw_name);
+ if (hostname)
+ syslog(LOG_NOTICE,
+ "LOGIN %s REFUSED FROM %s ON TTY %s",
+ pwd->pw_name, hostname, tty);
+ else
+ syslog(LOG_NOTICE,
+ "LOGIN %s REFUSED ON TTY %s",
+ pwd->pw_name, tty);
+ continue;
+ }
- (void) bzero(pp, strlen(pp));
- if (pwd && !strcmp(p, pwd->pw_passwd))
+ if (pwd && !rval)
break;
- printf("Login incorrect\n");
+ (void)printf("Login incorrect\n");
failures++;
/* we allow 10 tries, but after 3 we start backing off */
if (++cnt > 3) {
if (cnt >= 10) {
badlogin(username);
- (void)ioctl(0, TIOCHPCL, (struct sgttyb *)NULL);
sleepexit(1);
}
sleep((u_int)((cnt - 3) * 5));
/* committed to login -- turn off timeout */
(void)alarm((u_int)0);
- /*
- * If valid so far and root is logging in, see if root logins on
- * this terminal are permitted.
- */
- if (pwd->pw_uid == 0 && !rootterm(tty)) {
- if (hostname)
- syslog(LOG_NOTICE, "ROOT LOGIN REFUSED FROM %s",
- hostname);
- else
- syslog(LOG_NOTICE, "ROOT LOGIN REFUSED ON %s", tty);
- printf("Login incorrect\n");
- sleepexit(1);
- }
+ endpwent();
- if (quota(Q_SETUID, pwd->pw_uid, 0, 0) < 0 && errno != EINVAL) {
- switch(errno) {
- case EUSERS:
- fprintf(stderr,
- "Too many users logged on already.\nTry again later.\n");
- break;
- case EPROCLIM:
- fprintf(stderr,
- "You have too many processes running.\n");
- break;
- default:
- perror("quota (Q_SETUID)");
- }
- sleepexit(0);
- }
+ /* if user not super-user, check for disabled logins */
+ if (!rootlogin)
+ checknologin();
if (chdir(pwd->pw_dir) < 0) {
- printf("No directory %s!\n", pwd->pw_dir);
+ (void)printf("No home directory %s!\n", pwd->pw_dir);
if (chdir("/"))
exit(0);
pwd->pw_dir = "/";
- printf("Logging in with home = \"/\".\n");
+ (void)printf("Logging in with home = \"/\".\n");
}
+#define TWOWEEKS (14*24*60*60)
+ if (pwd->pw_change || pwd->pw_expire)
+ (void)gettimeofday(&tp, (struct timezone *)NULL);
+ if (pwd->pw_change)
+ if (tp.tv_sec >= pwd->pw_change) {
+ printf("Sorry -- your password has expired.\n");
+ sleepexit(1);
+ }
+ else if (tp.tv_sec - pwd->pw_change < TWOWEEKS) {
+ ttp = localtime(&pwd->pw_change);
+ printf("Warning: your password expires on %s %d, 19%d\n",
+ months[ttp->tm_mon], ttp->tm_mday, ttp->tm_year);
+ }
+ if (pwd->pw_expire)
+ if (tp.tv_sec >= pwd->pw_expire) {
+ printf("Sorry -- your account has expired.\n");
+ sleepexit(1);
+ }
+ else if (tp.tv_sec - pwd->pw_expire < TWOWEEKS) {
+ ttp = localtime(&pwd->pw_expire);
+ printf("Warning: your account expires on %s %d, 19%d\n",
+ months[ttp->tm_mon], ttp->tm_mday, ttp->tm_year);
+ }
- /* nothing else left to fail -- really log in */
- {
- struct utmp utmp;
-
- bzero((char *)&utmp, sizeof(utmp));
- (void)time(&utmp.ut_time);
- strncpy(utmp.ut_name, username, sizeof(utmp.ut_name));
- if (hostname)
- strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host));
- strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line));
- login(&utmp);
- }
+ if (pwd->pw_change || pwd->pw_expire)
+ (void)gettimeofday(&tp, (struct timezone *)NULL);
+ if (pwd->pw_change)
+ if (tp.tv_sec >= pwd->pw_change) {
+ (void)printf("Sorry -- your password has expired.\n");
+ sleepexit(1);
+ } else if (pwd->pw_change - tp.tv_sec <
+ 2 * DAYSPERWEEK * SECSPERDAY && !quietlog)
+ (void)printf("Warning: your password expires on %s",
+ ctime(&pwd->pw_change));
+ if (pwd->pw_expire)
+ if (tp.tv_sec >= pwd->pw_expire) {
+ (void)printf("Sorry -- your account has expired.\n");
+ sleepexit(1);
+ } else if (pwd->pw_expire - tp.tv_sec <
+ 2 * DAYSPERWEEK * SECSPERDAY && !quietlog)
+ (void)printf("Warning: your account expires on %s",
+ ctime(&pwd->pw_expire));
+
+ /* Nothing else left to fail -- really log in. */
+ memset((void *)&utmp, 0, sizeof(utmp));
+ (void)time(&utmp.ut_time);
+ (void)strncpy(utmp.ut_name, username, sizeof(utmp.ut_name));
+ if (hostname)
+ (void)strncpy(utmp.ut_host, hostname, sizeof(utmp.ut_host));
+ (void)strncpy(utmp.ut_line, tty, sizeof(utmp.ut_line));
+ login(&utmp);
- quietlog = access(HUSHLOGIN, F_OK) == 0;
dolastlog(quietlog);
- if (!hflag) { /* XXX */
- static struct winsize win = { 0, 0, 0, 0 };
-
- (void)ioctl(0, TIOCSWINSZ, &win);
- }
-
(void)chown(ttyn, pwd->pw_uid,
(gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid);
- (void)chmod(ttyn, 0620);
(void)setgid(pwd->pw_gid);
initgroups(username, pwd->pw_gid);
- quota(Q_DOWARN, pwd->pw_uid, (dev_t)-1, 0);
- (void)setuid(pwd->pw_uid);
-
if (*pwd->pw_shell == '\0')
- pwd->pw_shell = BSHELL;
- /* turn on new line discipline for the csh */
- else if (!strcmp(pwd->pw_shell, "/bin/csh")) {
- ioctlval = NTTYDISC;
- (void)ioctl(0, TIOCSETD, &ioctlval);
- }
+ pwd->pw_shell = _PATH_BSHELL;
- /* destroy environment unless user has requested preservation */
+ /* Destroy environment unless user has requested its preservation. */
if (!pflag)
environ = envinit;
(void)setenv("HOME", pwd->pw_dir, 1);
(void)setenv("SHELL", pwd->pw_shell, 1);
if (term[0] == '\0')
- strncpy(term, stypeof(tty), sizeof(term));
+ (void)strncpy(term, stypeof(tty), sizeof(term));
(void)setenv("TERM", term, 0);
+ (void)setenv("LOGNAME", pwd->pw_name, 1);
(void)setenv("USER", pwd->pw_name, 1);
- (void)setenv("PATH", "/usr/ucb:/bin:/usr/bin:", 0);
+ (void)setenv("PATH", _PATH_DEFPATH, 0);
+#ifdef KERBEROS
+ if (krbtkfile_env)
+ (void)setenv("KRBTKFILE", krbtkfile_env, 1);
+#endif
if (tty[sizeof("tty")-1] == 'd')
syslog(LOG_INFO, "DIALUP %s, %s", tty, pwd->pw_name);
- if (pwd->pw_uid == 0)
+
+ /* If fflag is on, assume caller/authenticator has logged root login. */
+ if (rootlogin && fflag == 0)
if (hostname)
- syslog(LOG_NOTICE, "ROOT LOGIN ON %s FROM %s",
- tty, hostname);
+ syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
+ username, tty, hostname);
else
- syslog(LOG_NOTICE, "ROOT LOGIN ON %s", tty);
+ syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s", username, tty);
- if (!quietlog) {
- struct stat st;
+#ifdef KERBEROS
+ if (!quietlog && notickets == 1)
+ (void)printf("Warning: no Kerberos tickets issued.\n");
+#endif
+ if (!quietlog) {
+ (void)printf("%s\n\t%s %s\n\n",
+ "Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994",
+ "The Regents of the University of California. ",
+ "All rights reserved.");
motd();
- (void)sprintf(tbuf, "%s/%s", MAILDIR, pwd->pw_name);
+ (void)snprintf(tbuf,
+ sizeof(tbuf), "%s/%s", _PATH_MAILDIR, pwd->pw_name);
if (stat(tbuf, &st) == 0 && st.st_size != 0)
- printf("You have %smail.\n",
+ (void)printf("You have %smail.\n",
(st.st_mtime > st.st_atime) ? "new " : "");
}
(void)signal(SIGTSTP, SIG_IGN);
tbuf[0] = '-';
- strcpy(tbuf + 1, (p = rindex(pwd->pw_shell, '/')) ?
+ (void)strcpy(tbuf + 1, (p = strrchr(pwd->pw_shell, '/')) ?
p + 1 : pwd->pw_shell);
+
+ if (setlogin(pwd->pw_name) < 0)
+ syslog(LOG_ERR, "setlogin() failure: %m");
+
+ /* Discard permissions last so can't get killed and drop core. */
+ if (rootlogin)
+ (void) setuid(0);
+ else
+ (void) setuid(pwd->pw_uid);
+
execlp(pwd->pw_shell, tbuf, 0);
- fprintf(stderr, "login: no shell: ");
- perror(pwd->pw_shell);
- exit(0);
+ err(1, "%s", pwd->pw_shell);
}
+#ifdef KERBEROS
+#define NBUFSIZ (UT_NAMESIZE + 1 + 5) /* .root suffix */
+#else
+#define NBUFSIZ (UT_NAMESIZE + 1)
+#endif
+
+void
getloginname()
{
- register int ch;
- register char *p;
- static char nbuf[UT_NAMESIZE + 1];
+ int ch;
+ char *p;
+ static char nbuf[NBUFSIZ];
for (;;) {
- printf("login: ");
+ (void)printf("login: ");
for (p = nbuf; (ch = getchar()) != '\n'; ) {
if (ch == EOF) {
badlogin(username);
exit(0);
}
- if (p < nbuf + UT_NAMESIZE)
+ if (p < nbuf + (NBUFSIZ - 1))
*p++ = ch;
}
if (p > nbuf)
if (nbuf[0] == '-')
- fprintf(stderr,
+ (void)fprintf(stderr,
"login names may not start with '-'.\n");
else {
*p = '\0';
}
}
-timedout()
-{
- fprintf(stderr, "Login timed out after %d seconds\n", timeout);
- exit(0);
-}
-
+int
rootterm(ttyn)
char *ttyn;
{
struct ttyent *t;
- return((t = getttynam(ttyn)) && t->ty_status&TTY_SECURE);
+ return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
}
jmp_buf motdinterrupt;
+void
motd()
{
- register int fd, nchars;
- int (*oldint)(), sigint();
+ int fd, nchars;
+ sig_t oldint;
char tbuf[8192];
- if ((fd = open(MOTDFILE, O_RDONLY, 0)) < 0)
+ if ((fd = open(_PATH_MOTDFILE, O_RDONLY, 0)) < 0)
return;
oldint = signal(SIGINT, sigint);
if (setjmp(motdinterrupt) == 0)
(void)close(fd);
}
-sigint()
+/* ARGSUSED */
+void
+sigint(signo)
+ int signo;
{
+
longjmp(motdinterrupt, 1);
}
+/* ARGSUSED */
+void
+timedout(signo)
+ int signo;
+{
+
+ (void)fprintf(stderr, "Login timed out after %d seconds\n", timeout);
+ exit(0);
+}
+
+void
checknologin()
{
- register int fd, nchars;
+ int fd, nchars;
char tbuf[8192];
- if ((fd = open(NOLOGIN, O_RDONLY, 0)) >= 0) {
+ if ((fd = open(_PATH_NOLOGIN, O_RDONLY, 0)) >= 0) {
while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0)
(void)write(fileno(stdout), tbuf, nchars);
sleepexit(0);
}
}
+void
dolastlog(quiet)
int quiet;
{
struct lastlog ll;
int fd;
+ char *ctime();
- if ((fd = open(LASTLOG, O_RDWR, 0)) >= 0) {
+ if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) {
(void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
if (!quiet) {
if (read(fd, (char *)&ll, sizeof(ll)) == sizeof(ll) &&
ll.ll_time != 0) {
- printf("Last login: %.*s ",
+ (void)printf("Last login: %.*s ",
24-5, (char *)ctime(&ll.ll_time));
if (*ll.ll_host != '\0')
- printf("from %.*s\n",
- sizeof(ll.ll_host), ll.ll_host);
+ (void)printf("from %.*s\n",
+ (int)sizeof(ll.ll_host),
+ ll.ll_host);
else
- printf("on %.*s\n",
- sizeof(ll.ll_line), ll.ll_line);
+ (void)printf("on %.*s\n",
+ (int)sizeof(ll.ll_line),
+ ll.ll_line);
}
(void)lseek(fd, (off_t)pwd->pw_uid * sizeof(ll), L_SET);
}
- bzero((char *)&ll, sizeof(ll));
+ memset((void *)&ll, 0, sizeof(ll));
(void)time(&ll.ll_time);
- strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
+ (void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
if (hostname)
- strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
+ (void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
(void)write(fd, (char *)&ll, sizeof(ll));
(void)close(fd);
}
}
+void
badlogin(name)
char *name;
{
+
if (failures == 0)
return;
- if (hostname)
- syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s, %s",
+ if (hostname) {
+ syslog(LOG_NOTICE, "%d LOGIN FAILURE%s FROM %s",
+ failures, failures > 1 ? "S" : "", hostname);
+ syslog(LOG_AUTHPRIV|LOG_NOTICE,
+ "%d LOGIN FAILURE%s FROM %s, %s",
failures, failures > 1 ? "S" : "", hostname, name);
- else
- syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s, %s",
+ } else {
+ syslog(LOG_NOTICE, "%d LOGIN FAILURE%s ON %s",
+ failures, failures > 1 ? "S" : "", tty);
+ syslog(LOG_AUTHPRIV|LOG_NOTICE,
+ "%d LOGIN FAILURE%s ON %s, %s",
failures, failures > 1 ? "S" : "", tty, name);
+ }
}
#undef UNKNOWN
{
struct ttyent *t;
- return(ttyid && (t = getttynam(ttyid)) ? t->ty_type : UNKNOWN);
+ return (ttyid && (t = getttynam(ttyid)) ? t->ty_type : UNKNOWN);
}
-getstr(buf, cnt, err)
- char *buf, *err;
- int cnt;
+void
+sleepexit(eval)
+ int eval;
{
- char ch;
- do {
- if (read(0, &ch, sizeof(ch)) != sizeof(ch))
- exit(1);
- if (--cnt < 0) {
- fprintf(stderr, "%s too long\r\n", err);
- sleepexit(1);
- }
- *buf++ = ch;
- } while (ch);
+ (void)sleep(5);
+ exit(eval);
}
-sleepexit(eval)
- int eval;
+doremotelogin(host)
+ char *host;
{
- sleep((u_int)5);
- exit(eval);
+ static char lusername[UT_NAMESIZE+1];
+ char rusername[UT_NAMESIZE+1];
+
+ getstr(rusername, sizeof(rusername), "remuser");
+ getstr(lusername, sizeof(lusername), "locuser");
+ getstr(term, sizeof(term), "Terminal type");
+ username = lusername;
+ pwd = getpwnam(username);
+ if (pwd == NULL)
+ return(-1);
+ return(ruserok(host, (pwd->pw_uid == 0), rusername, username));
+}
+
+char *speeds[] = {
+ "0", "50", "75", "110", "134", "150", "200", "300", "600",
+ "1200", "1800", "2400", "4800", "9600", "19200", "38400",
+};
+#define NSPEEDS (sizeof(speeds) / sizeof(speeds[0]))
+
+doremoteterm(tp)
+ struct sgttyb *tp;
+{
+ register char *cp = index(term, '/'), **cpp;
+ char *speed;
+
+ if (cp) {
+ *cp++ = '\0';
+ speed = cp;
+ cp = index(speed, '/');
+ if (cp)
+ *cp++ = '\0';
+ for (cpp = speeds; cpp < &speeds[NSPEEDS]; cpp++)
+ if (strcmp(*cpp, speed) == 0) {
+ tp->sg_ispeed = tp->sg_ospeed = cpp-speeds;
+ break;
+ }
+ }
+ tp->sg_flags = ECHO|CRMOD|ANYP|XTABS;
}