BSD 4.4 Lite Usr.bin Sources

3 files changed, 298 insertions, 0 deletions

diff --git a/usr.bin/lock/Makefile b/usr.bin/lock/Makefile
new file mode 100644
index 0000000..9403206
--- /dev/null
+++ b/usr.bin/lock/Makefile
@@ -0,0 +1,7 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	lock
+BINOWN= root
+BINMODE=4555
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/lock/lock.1 b/usr.bin/lock/lock.1
new file mode 100644
index 0000000..ad8575c
--- /dev/null
+++ b/usr.bin/lock/lock.1
@@ -0,0 +1,68 @@
+.\" Copyright (c) 1987, 1990, 1993
+.\"	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.
+.\"
+.\"	@(#)lock.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt LOCK 1
+.Os
+.Sh NAME
+.Nm lock
+.Nd reserve a terminal
+.Sh SYNOPSIS
+.Nm lock
+.Op Fl p
+.Op Fl t Ar timeout
+.Sh DESCRIPTION
+.Nm Lock
+requests a password from the user, reads it again for verification
+and then will normally not relinquish the terminal until the password is
+repeated.
+There are two other conditions under which it will terminate: it
+will timeout after some interval of time and it may be killed by someone
+with the appropriate permission.
+.Pp
+Options:
+.Pp
+.Bl -tag -width Fl
+.It Fl p
+A password is not requested, instead the user's current login password
+is used.
+.It Fl t Ar timeout 
+The time limit (default 15 minutes) is changed to
+.Ar timeout
+minutes.
+.El
+.Sh HISTORY
+The
+.Nm lock
+command appeared in
+.Bx 3.0 .
diff --git a/usr.bin/lock/lock.c b/usr.bin/lock/lock.c
new file mode 100644
index 0000000..774ebc9
--- /dev/null
+++ b/usr.bin/lock/lock.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 1980, 1987, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Bob Toxen.
+ *
+ * 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, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)lock.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+/*
+ * Lock a terminal up until the given key is entered, until the root
+ * password is entered, or the given interval times out.
+ *
+ * Timeout interval is by default TIMEOUT, it can be changed with
+ * an argument of the form -time where time is in minutes
+ */
+
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/signal.h>
+#include <sgtty.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+
+#define	TIMEOUT	15
+
+void quit(), bye(), hi();
+
+struct timeval	timeout;
+struct timeval	zerotime;
+struct sgttyb	tty, ntty;
+long	nexttime;			/* keep the timeout time */
+
+/*ARGSUSED*/
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	extern char *optarg;
+	extern int errno, optind;
+	struct passwd *pw;
+	struct timeval timval;
+	struct itimerval ntimer, otimer;
+	struct tm *timp;
+	int ch, sectimeout, usemine;
+	char *ap, *mypw, *ttynam, *tzn;
+	char hostname[MAXHOSTNAMELEN], s[BUFSIZ], s1[BUFSIZ];
+	char *crypt(), *ttyname();
+
+	sectimeout = TIMEOUT;
+	mypw = NULL;
+	usemine = 0;
+	while ((ch = getopt(argc, argv, "pt:")) != EOF)
+		switch((char)ch) {
+		case 't':
+			if ((sectimeout = atoi(optarg)) <= 0) {
+				(void)fprintf(stderr,
+				    "lock: illegal timeout value.\n");
+				exit(1);
+			}
+			break;
+		case 'p':
+			usemine = 1;
+			if (!(pw = getpwuid(getuid()))) {
+				(void)fprintf(stderr,
+				    "lock: unknown uid %d.\n", getuid());
+				exit(1);
+			}
+			mypw = strdup(pw->pw_passwd);
+			break;
+		case '?':
+		default:
+			(void)fprintf(stderr,
+			    "usage: lock [-p] [-t timeout]\n");
+			exit(1);
+	}
+	timeout.tv_sec = sectimeout * 60;
+
+	setuid(getuid());		/* discard privs */
+
+	if (ioctl(0, TIOCGETP, &tty))	/* get information for header */
+		exit(1);
+	gethostname(hostname, sizeof(hostname));
+	if (!(ttynam = ttyname(0))) {
+		(void)printf("lock: not a terminal?\n");
+		exit(1);
+	}
+	if (gettimeofday(&timval, (struct timezone *)NULL)) {
+		(void)fprintf(stderr,
+		    "lock: gettimeofday: %s\n", strerror(errno));
+		exit(1);
+	}
+	nexttime = timval.tv_sec + (sectimeout * 60);
+	timp = localtime(&timval.tv_sec);
+	ap = asctime(timp);
+	tzn = timp->tm_zone;
+
+	(void)signal(SIGINT, quit);
+	(void)signal(SIGQUIT, quit);
+	ntty = tty; ntty.sg_flags &= ~ECHO;
+	(void)ioctl(0, TIOCSETP, &ntty);
+
+	if (!mypw) {
+		/* get key and check again */
+		(void)printf("Key: ");
+		if (!fgets(s, sizeof(s), stdin) || *s == '\n')
+			quit();
+		(void)printf("\nAgain: ");
+		/*
+		 * Don't need EOF test here, if we get EOF, then s1 != s
+		 * and the right things will happen.
+		 */
+		(void)fgets(s1, sizeof(s1), stdin);
+		(void)putchar('\n');
+		if (strcmp(s1, s)) {
+			(void)printf("\07lock: passwords didn't match.\n");
+			ioctl(0, TIOCSETP, &tty);
+			exit(1);
+		}
+		s[0] = NULL;
+		mypw = s1;
+	}
+
+	/* set signal handlers */
+	(void)signal(SIGINT, hi);
+	(void)signal(SIGQUIT, hi);
+	(void)signal(SIGTSTP, hi);
+	(void)signal(SIGALRM, bye);
+
+	ntimer.it_interval = zerotime;
+	ntimer.it_value = timeout;
+	setitimer(ITIMER_REAL, &ntimer, &otimer);
+
+	/* header info */
+(void)printf("lock: %s on %s. timeout in %d minutes\ntime now is %.20s%s%s",
+	    ttynam, hostname, sectimeout, ap, tzn, ap + 19);
+
+	for (;;) {
+		(void)printf("Key: ");
+		if (!fgets(s, sizeof(s), stdin)) {
+			clearerr(stdin);
+			hi();
+			continue;
+		}
+		if (usemine) {
+			s[strlen(s) - 1] = '\0';
+			if (!strcmp(mypw, crypt(s, mypw)))
+				break;
+		}
+		else if (!strcmp(s, s1))
+			break;
+		(void)printf("\07\n");
+		if (ioctl(0, TIOCGETP, &ntty))
+			exit(1);
+	}
+	quit();
+}
+
+void
+hi()
+{
+	struct timeval timval;
+
+	if (!gettimeofday(&timval, (struct timezone *)NULL))
+(void)printf("lock: type in the unlock key. timeout in %ld:%ld minutes\n",
+	    (nexttime - timval.tv_sec) / 60, (nexttime - timval.tv_sec) % 60);
+}
+
+void
+quit()
+{
+	(void)putchar('\n');
+	(void)ioctl(0, TIOCSETP, &tty);
+	exit(0);
+}
+
+void
+bye()
+{
+	(void)ioctl(0, TIOCSETP, &tty);
+	(void)printf("lock: timeout\n");
+	exit(1);
+}