mirror of https://github.com/GnoConsortium/gno.git
732 lines
17 KiB
C
732 lines
17 KiB
C
/*-
|
||
* 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, with or without
|
||
* modification, are permitted provided that the following conditions
|
||
* are met:
|
||
* 1. Redistributions of source code must retain the above copyright
|
||
* notice, this list of conditions and the following disclaimer.
|
||
* 2. Redistributions in binary form must reproduce the above copyright
|
||
* notice, this list of conditions and the following disclaimer in the
|
||
* documentation and/or other materials provided with the distribution.
|
||
* 3. All advertising materials mentioning features or use of this software
|
||
* must display the following acknowledgement:
|
||
* This product includes software developed by the University of
|
||
* California, Berkeley and its contributors.
|
||
* 4. Neither the name of the University nor the names of its contributors
|
||
* may be used to endorse or promote products derived from this software
|
||
* without specific prior written permission.
|
||
*
|
||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
* SUCH DAMAGE.
|
||
*/
|
||
|
||
#ifndef lint
|
||
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 8.4 (Berkeley) 4/2/94";
|
||
#endif /* not lint */
|
||
|
||
/*
|
||
* login [ name ]
|
||
* login -h hostname (for telnetd, etc.)
|
||
* login -f name (for pre-authenticated login: datakit, xterm, etc.)
|
||
*/
|
||
|
||
#include <sys/param.h>
|
||
#include <sys/stat.h>
|
||
#include <sys/time.h>
|
||
#ifndef __GNO__
|
||
#include <sys/resource.h>
|
||
#endif
|
||
#include <sys/file.h>
|
||
|
||
#include <err.h>
|
||
#include <errno.h>
|
||
#include <grp.h>
|
||
#include <pwd.h>
|
||
#include <setjmp.h>
|
||
#include <signal.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <syslog.h>
|
||
#include <ttyent.h>
|
||
#include <unistd.h>
|
||
#include <utmp.h>
|
||
|
||
#ifdef SKEY
|
||
#include <skey.h>
|
||
#endif
|
||
|
||
#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, int));
|
||
void sleepexit __P((int));
|
||
char *stypeof __P((char *));
|
||
void timedout __P((int, int));
|
||
void login_fbtab __P((char *, uid_t, gid_t));
|
||
#ifdef KERBEROS
|
||
int klogin __P((struct passwd *, char *, char *, char *));
|
||
#endif
|
||
|
||
extern void login __P((struct utmp *));
|
||
|
||
#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.
|
||
*/
|
||
u_int timeout = 300;
|
||
|
||
#ifdef KERBEROS
|
||
int notickets = 1;
|
||
int noticketsdontcomplain = 1;
|
||
char *instance;
|
||
char *krbtkfile_env;
|
||
int authok;
|
||
#endif
|
||
|
||
struct passwd *pwd;
|
||
int failures;
|
||
char term[64], *envinit[1], *hostname, *username, *tty;
|
||
|
||
int
|
||
main(int argc, char **argv)
|
||
{
|
||
extern char **environ;
|
||
struct group *gr;
|
||
static struct stat st;
|
||
struct timeval tp;
|
||
static struct utmp utmp;
|
||
int ask, ch, cnt, fflag, hflag, pflag, quietlog, rootlogin, rval;
|
||
#ifndef __GNO__
|
||
int changepass;
|
||
#endif
|
||
uid_t uid;
|
||
char *domain, *p, *ep, *salt, *ttyn;
|
||
static char tbuf[MAXPATHLEN + 2];
|
||
#ifdef __GNO__
|
||
static char tname[15];
|
||
#else
|
||
static char tname[sizeof(_PATH_TTY) + 10];
|
||
#endif
|
||
static char localhost[MAXHOSTNAMELEN];
|
||
static char full_hostname[MAXHOSTNAMELEN];
|
||
#ifdef SKEY
|
||
int permit_passwd = 0;
|
||
#endif
|
||
|
||
(void)signal(SIGALRM, timedout);
|
||
(void)alarm(timeout);
|
||
(void)signal(SIGQUIT, SIG_IGN);
|
||
(void)signal(SIGINT, SIG_IGN);
|
||
#ifndef __GNO__
|
||
(void)setpriority(PRIO_PROCESS, 0, 0);
|
||
#endif
|
||
|
||
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
|
||
* -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
|
||
*
|
||
* The TMTerm NDA expects the GNO 2.0.4 multi-user update login.
|
||
* The commandline passed is:
|
||
* login -Ph TMTERM root TERM=vt100
|
||
*
|
||
* -P Suppress the password prompt and log the user in without one.
|
||
* This switch will have no effect unless a user name is given on
|
||
* the command line and the user has root priviledges or is logging
|
||
* in as himself.
|
||
*
|
||
* this is equivalent to -f
|
||
*/
|
||
*full_hostname = '\0';
|
||
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;
|
||
uid = getuid();
|
||
while ((ch = getopt(argc, argv, "fh:pP")) != EOF)
|
||
switch (ch) {
|
||
#ifdef __GNO__
|
||
case 'P':
|
||
#endif
|
||
case 'f':
|
||
fflag = 1;
|
||
break;
|
||
case 'h':
|
||
if (uid)
|
||
errx(1, "-h option: %s", strerror(EPERM));
|
||
hflag = 1;
|
||
strncpy(full_hostname, optarg, sizeof(full_hostname)-1);
|
||
if (domain && (p = strchr(optarg, '.')) &&
|
||
strcasecmp(p, domain) == 0)
|
||
*p = 0;
|
||
hostname = optarg;
|
||
break;
|
||
case 'p':
|
||
pflag = 1;
|
||
break;
|
||
|
||
case '?':
|
||
default:
|
||
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;
|
||
|
||
#ifdef __GNO__
|
||
for (cnt = 32; cnt > STDERR_FILENO; cnt--)
|
||
#else
|
||
for (cnt = getdtablesize(); cnt > 2; cnt--)
|
||
#endif
|
||
(void)close(cnt);
|
||
|
||
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;
|
||
|
||
for (cnt = 0;; ask = 1) {
|
||
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
|
||
* for nonexistent name (mistyped username).
|
||
*/
|
||
if (failures && strcmp(tbuf, username)) {
|
||
if (failures > (pwd ? 0 : 1))
|
||
badlogin(tbuf);
|
||
failures = 0;
|
||
}
|
||
(void)strcpy(tbuf, username);
|
||
|
||
if (pwd = getpwnam(username))
|
||
salt = pwd->pw_passwd;
|
||
else
|
||
salt = "xx";
|
||
|
||
/*
|
||
* 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 (pwd) {
|
||
if (pwd->pw_uid == 0)
|
||
rootlogin = 1;
|
||
|
||
if (fflag && (uid == 0 || uid == pwd->pw_uid)) {
|
||
/* already authenticated */
|
||
break;
|
||
} else if (pwd->pw_passwd[0] == '\0') {
|
||
/* pretend password okay */
|
||
rval = 0;
|
||
goto ttycheck;
|
||
}
|
||
}
|
||
|
||
fflag = 0;
|
||
|
||
#ifndef __GNO__
|
||
(void)setpriority(PRIO_PROCESS, 0, -4);
|
||
#endif
|
||
|
||
#ifdef SKEY
|
||
permit_passwd = skeyaccess(username, tty,
|
||
hostname ? full_hostname : NULL,
|
||
NULL);
|
||
p = skey_getpass("Password:", pwd, permit_passwd);
|
||
ep = skey_crypt(p, salt, pwd, permit_passwd);
|
||
#else
|
||
p = getpass("Password:");
|
||
ep = crypt(p, salt);
|
||
#endif
|
||
|
||
if (pwd) {
|
||
#ifdef KERBEROS
|
||
#ifdef SKEY
|
||
/*
|
||
* Do not allow user to type in kerberos password
|
||
* over the net (actually, this is ok for encrypted
|
||
* links, but we have no way of determining if the
|
||
* link is encrypted.
|
||
*/
|
||
if (!permit_passwd) {
|
||
rval = 1; /* failed */
|
||
} else
|
||
#endif
|
||
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(ep, pwd->pw_passwd);
|
||
#else
|
||
rval = strcmp(ep, pwd->pw_passwd);
|
||
#endif
|
||
}
|
||
memset(p, 0, strlen(p));
|
||
|
||
#ifndef __GNO__
|
||
(void)setpriority(PRIO_PROCESS, 0, 0);
|
||
#endif
|
||
|
||
ttycheck:
|
||
/*
|
||
* If trying to log in as root without Kerberos,
|
||
* but with insecure terminal, refuse the login attempt.
|
||
*/
|
||
#ifdef KERBEROS
|
||
if (authok == 0)
|
||
#endif
|
||
if (pwd && !rval && 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;
|
||
}
|
||
|
||
if (pwd && !rval)
|
||
break;
|
||
|
||
(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);
|
||
sleepexit(1);
|
||
}
|
||
sleep((u_int)((cnt - 3) * 5));
|
||
}
|
||
}
|
||
|
||
/* committed to login -- turn off timeout */
|
||
(void)alarm((u_int)0);
|
||
|
||
endpwent();
|
||
|
||
/* if user not super-user, check for disabled logins */
|
||
if (!rootlogin)
|
||
checknologin();
|
||
|
||
if (chdir(pwd->pw_dir) < 0) {
|
||
(void)printf("No home directory %s!\n", pwd->pw_dir);
|
||
if (chdir("/"))
|
||
exit(0);
|
||
pwd->pw_dir = "/";
|
||
(void)printf("Logging in with home = \"/\".\n");
|
||
}
|
||
|
||
quietlog = access(_PATH_HUSHLOGIN, F_OK) == 0;
|
||
|
||
#ifndef __GNO__
|
||
if (pwd->pw_change || pwd->pw_expire)
|
||
(void)gettimeofday(&tp, (struct timezone *)NULL);
|
||
|
||
changepass=0;
|
||
if (pwd->pw_change)
|
||
if (tp.tv_sec >= pwd->pw_change) {
|
||
(void)printf("Sorry -- your password has expired.\n");
|
||
changepass=1;
|
||
} else if (pwd->pw_change - tp.tv_sec <
|
||
2 * 7 * 86400 && !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 * 7 * 86400 && !quietlog)
|
||
(void)printf("Warning: your account expires on %s",
|
||
ctime(&pwd->pw_expire));
|
||
#endif
|
||
|
||
/* 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);
|
||
|
||
dolastlog(quietlog);
|
||
|
||
#ifndef __GNO__
|
||
/*
|
||
* Set device protections, depending on what terminal the
|
||
* user is logged in. This feature is used on Suns to give
|
||
* console users better privacy.
|
||
*/
|
||
login_fbtab(tty, pwd->pw_uid, pwd->pw_gid);
|
||
|
||
(void)chown(ttyn, pwd->pw_uid,
|
||
(gr = getgrnam(TTYGRPNAME)) ? gr->gr_gid : pwd->pw_gid);
|
||
#endif
|
||
(void)setgid(pwd->pw_gid);
|
||
|
||
#ifndef __GNO__
|
||
initgroups(username, pwd->pw_gid);
|
||
#endif
|
||
|
||
if (*pwd->pw_shell == '\0')
|
||
pwd->pw_shell = _PATH_BSHELL;
|
||
|
||
/* Destroy environment unless user has requested its preservation. */
|
||
if (!pflag)
|
||
environ = envinit;
|
||
|
||
#ifdef __GNO__
|
||
// set parameters from the command line.
|
||
for (cnt = 1; cnt < argc; ++cnt)
|
||
{
|
||
(void)putenv(argv[cnt]);
|
||
}
|
||
#endif
|
||
|
||
(void)setenv("HOME", pwd->pw_dir, 1);
|
||
(void)setenv("SHELL", pwd->pw_shell, 1);
|
||
if (term[0] == '\0')
|
||
(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", _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 fflag is on, assume caller/authenticator has logged root login. */
|
||
if (rootlogin && fflag == 0)
|
||
if (hostname)
|
||
syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s FROM %s",
|
||
username, tty, hostname);
|
||
else
|
||
syslog(LOG_NOTICE, "ROOT LOGIN (%s) ON %s", username, tty);
|
||
|
||
#ifdef KERBEROS
|
||
if (!quietlog && notickets == 1 && !noticketsdontcomplain)
|
||
(void)printf("Warning: no Kerberos tickets issued.\n");
|
||
#endif
|
||
|
||
#ifdef LOGALL
|
||
/*
|
||
* Syslog each successful login, so we don't have to watch hundreds
|
||
* of wtmp or lastlogin files.
|
||
*/
|
||
if (hostname) {
|
||
syslog(LOG_INFO, "login from %s as %s", hostname, pwd->pw_name);
|
||
} else {
|
||
syslog(LOG_INFO, "login on %s as %s", tty, pwd->pw_name);
|
||
}
|
||
#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)snprintf(tbuf, sizeof(tbuf),
|
||
"%s/%s", _PATH_MAILDIR, pwd->pw_name);
|
||
if (stat(tbuf, &st) == 0 && st.st_size != 0)
|
||
(void)printf("You have %smail.\n",
|
||
(st.st_mtime > st.st_atime) ? "new " : "");
|
||
}
|
||
|
||
#ifdef LOGIN_ACCESS
|
||
if (login_access(pwd->pw_name, hostname ? full_hostname : tty) == 0) {
|
||
printf("Permission denied\n");
|
||
if (hostname)
|
||
syslog(LOG_NOTICE, "%s LOGIN REFUSED FROM %s",
|
||
pwd->pw_name, hostname);
|
||
else
|
||
syslog(LOG_NOTICE, "%s LOGIN REFUSED ON %s",
|
||
pwd->pw_name, tty);
|
||
sleepexit(1);
|
||
}
|
||
#endif
|
||
|
||
(void)signal(SIGALRM, SIG_DFL);
|
||
(void)signal(SIGQUIT, SIG_DFL);
|
||
(void)signal(SIGINT, SIG_DFL);
|
||
(void)signal(SIGTSTP, SIG_IGN);
|
||
|
||
tbuf[0] = '-';
|
||
(void)strcpy(tbuf + 1, (p = strrchr(pwd->pw_shell, '/')) ?
|
||
p + 1 : pwd->pw_shell);
|
||
|
||
#ifndef __GNO__
|
||
if (setlogin(pwd->pw_name) < 0)
|
||
syslog(LOG_ERR, "setlogin() failure: %m");
|
||
#endif
|
||
|
||
/* Discard permissions last so can't get killed and drop core. */
|
||
if (rootlogin)
|
||
(void) setuid(0);
|
||
else
|
||
(void) setuid(pwd->pw_uid);
|
||
|
||
#ifndef __GNO__
|
||
if (changepass) {
|
||
int res;
|
||
if ((res=system(_PATH_CHPASS)))
|
||
sleepexit(1);
|
||
}
|
||
#endif
|
||
|
||
execlp(pwd->pw_shell, tbuf, 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(void)
|
||
{
|
||
int ch;
|
||
char *p;
|
||
static char nbuf[NBUFSIZ];
|
||
|
||
for (;;) {
|
||
(void)printf("login: ");
|
||
for (p = nbuf; (ch = getchar()) != '\n'; ) {
|
||
if (ch == EOF) {
|
||
badlogin(username);
|
||
exit(0);
|
||
}
|
||
if (p < nbuf + (NBUFSIZ - 1))
|
||
*p++ = ch;
|
||
}
|
||
if (p > nbuf)
|
||
if (nbuf[0] == '-')
|
||
(void)fprintf(stderr,
|
||
"login names may not start with '-'.\n");
|
||
else {
|
||
*p = '\0';
|
||
username = nbuf;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
int
|
||
rootterm(char *ttyn)
|
||
{
|
||
struct ttyent *t;
|
||
|
||
return ((t = getttynam(ttyn)) && t->ty_status & TTY_SECURE);
|
||
}
|
||
|
||
jmp_buf motdinterrupt;
|
||
static char tbuf[8192];
|
||
|
||
void
|
||
motd(void)
|
||
{
|
||
int fd, nchars;
|
||
sig_t oldint;
|
||
|
||
#ifdef __ORCAC__
|
||
if ((fd = open(_PATH_MOTDFILE, O_RDONLY)) < 0)
|
||
#else
|
||
if ((fd = open(_PATH_MOTDFILE, O_RDONLY, 0)) < 0)
|
||
#endif
|
||
return;
|
||
oldint = signal(SIGINT, sigint);
|
||
if (setjmp(motdinterrupt) == 0)
|
||
while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0)
|
||
(void)write(fileno(stdout), tbuf, nchars);
|
||
(void)signal(SIGINT, oldint);
|
||
(void)close(fd);
|
||
}
|
||
|
||
#pragma databank 1
|
||
/* ARGSUSED */
|
||
void
|
||
sigint(int signo, int code)
|
||
{
|
||
longjmp(motdinterrupt, 1);
|
||
}
|
||
|
||
/* ARGSUSED */
|
||
void
|
||
timedout(int signo, int code)
|
||
{
|
||
(void)fprintf(stderr, "Login timed out after %d seconds\n", timeout);
|
||
exit(0);
|
||
}
|
||
#pragma databank 0
|
||
|
||
void
|
||
checknologin(void)
|
||
{
|
||
int fd, nchars;
|
||
|
||
#ifdef __ORCAC__
|
||
if ((fd = open(_PATH_NOLOGIN, O_RDONLY)) >= 0) {
|
||
#else
|
||
if ((fd = open(_PATH_NOLOGIN, O_RDONLY, 0)) >= 0) {
|
||
#endif
|
||
while ((nchars = read(fd, tbuf, sizeof(tbuf))) > 0)
|
||
(void)write(fileno(stdout), tbuf, nchars);
|
||
sleepexit(0);
|
||
}
|
||
}
|
||
|
||
void
|
||
dolastlog(int quiet)
|
||
{
|
||
static struct lastlog ll;
|
||
int fd;
|
||
|
||
#ifdef __ORCAC__
|
||
if ((fd = open(_PATH_LASTLOG, O_RDWR)) >= 0) {
|
||
#else
|
||
if ((fd = open(_PATH_LASTLOG, O_RDWR, 0)) >= 0) {
|
||
#endif
|
||
(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) {
|
||
(void)printf("Last login: %.*s ",
|
||
24-5, (char *)ctime(&ll.ll_time));
|
||
if (*ll.ll_host != '\0')
|
||
(void)printf("from %.*s\n",
|
||
(int)sizeof(ll.ll_host),
|
||
ll.ll_host);
|
||
else
|
||
(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);
|
||
}
|
||
memset((void *)&ll, 0, sizeof(ll));
|
||
(void)time(&ll.ll_time);
|
||
(void)strncpy(ll.ll_line, tty, sizeof(ll.ll_line));
|
||
if (hostname)
|
||
(void)strncpy(ll.ll_host, hostname, sizeof(ll.ll_host));
|
||
(void)write(fd, (char *)&ll, sizeof(ll));
|
||
(void)close(fd);
|
||
}
|
||
}
|
||
|
||
void
|
||
badlogin(char *name)
|
||
{
|
||
if (failures == 0)
|
||
return;
|
||
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",
|
||
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
|
||
#define UNKNOWN "su"
|
||
|
||
char *
|
||
stypeof(char *ttyid)
|
||
{
|
||
struct ttyent *t;
|
||
|
||
return (ttyid && (t = getttynam(ttyid)) ? t->ty_type : UNKNOWN);
|
||
}
|
||
|
||
void
|
||
sleepexit(int eval)
|
||
{
|
||
(void)sleep(5);
|
||
exit(eval);
|
||
}
|
||
|
||
|