Importing usr.bin/leave

No Minix-specific changes needed.

Change-Id: I2cd3f75255168a553ec5f9dd722ba1c51c09a0c1

distrib/sets/lists/minix/mi

@@ -364,6 +364,7 @@
 ./usr/bin/last				minix-sys
 ./usr/bin/ld				minix-sys	binutils
 ./usr/bin/ldd				minix-sys
+./usr/bin/leave				minix-sys
 ./usr/bin/less				minix-sys
 ./usr/bin/lessecho			minix-sys
 ./usr/bin/lesskey			minix-sys
@@ -1933,6 +1934,7 @@
 ./usr/man/man1/ld.1			minix-sys	binutils
 ./usr/man/man1/ldd.1			minix-sys
 ./usr/man/man1/ld.elf_so.1		minix-sys
+./usr/man/man1/leave.1			minix-sys
 ./usr/man/man1/less.1			minix-sys
 ./usr/man/man1/lesskey.1		minix-sys
 ./usr/man/man1/lex.1			minix-sys

releasetools/nbsd_ports

@@ -170,6 +170,7 @@
 2012/10/17 12:00:00,usr.bin/infocmp
 2012/10/17 12:00:00,usr.bin/join
 2011/01/17 18:11:10,usr.bin/ldd
+2013/10/18 12:00:00,usr.bin/leave
 2012/02/10 16:16:12,usr.bin/login
 2013/05/30 12:00:00,usr.bin/logname
 2012/10/17 12:00:00,usr.bin/lorder

usr.bin/Makefile

@@ -13,7 +13,7 @@ SUBDIR= \
 	finger from \
 	ftp genassym getopt \
 	head indent infocmp join \
-	ldd \
+	ldd leave \
 	login logname lorder m4 \
 	machine make man \
 	mkdep mktemp \

usr.bin/leave/Makefile

@@ -0,0 +1,6 @@
+#	$NetBSD: Makefile,v 1.5 1997/10/19 03:44:24 lukem Exp $
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+
+PROG=	leave
+
+.include <bsd.prog.mk>

usr.bin/leave/leave.1

@@ -0,0 +1,117 @@
+.\"	$NetBSD: leave.1,v 1.12 2012/02/21 15:01:51 njoly Exp $
+.\"
+.\" Copyright (c) 1980, 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. 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.
+.\"
+.\"	@(#)leave.1	8.3 (Berkeley) 4/28/95
+.\"
+.Dd January 19, 2002
+.Dt LEAVE 1
+.Os
+.Sh NAME
+.Nm leave
+.Nd remind you when you have to leave
+.Sh SYNOPSIS
+.Nm
+.Sm off
+.Oo
+.Op Cm \&+
+.Ns Ar hhmm
+.Oc
+.Sm on
+.Sh DESCRIPTION
+.Nm
+waits until the specified time (within the next 12 hours), then
+reminds you that you have to leave by writing to the TTY that you
+executed
+.Nm
+on.
+.Pp
+You are reminded 5 minutes and 1 minute before the actual
+time, at the time, and every minute thereafter.
+When you log off,
+.Nm
+exits just before it would have
+printed the next message.
+.Sh OPTIONS
+.Bl -tag -width flag
+.It Ar hhmm
+The time of day is in the form
+.Ar hhmm
+where
+.Ar hh
+is a time in
+hours (on a 12 or 24 hour clock), and
+.Ar mm
+are minutes.
+.Pp
+However, all times are converted to a 12 hour clock, and assumed to
+be in the next 12 hours.
+An attempt to set an alarm for farther into the future will be truncated
+to within the next 12 hours.
+.It Cm \&+
+If the time is preceded by
+.Ql Cm \&+ ,
+the alarm will go off in hours and minutes
+from the current time.
+.El
+.Pp
+If no argument is given,
+.Nm
+prompts with "When do you have to leave?".
+A reply of newline causes
+.Nm
+to exit,
+otherwise the reply is assumed to be a time.
+This form is suitable for inclusion in a
+.Pa ~/.login
+or
+.Pa ~/.profile .
+.Sh SEE ALSO
+.Xr calendar 1 ,
+.Xr csh 1 ,
+.Xr sh 1
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 3.0 .
+.Sh BUGS
+In the modern age with
+.Xr X 7
+and window multiplexing programs like
+.Xr tmux 1
+and
+.Xr screen 1 ,
+the
+.Nm
+command's reminders and admonitions might not be seen if the user
+has the window where
+.Nm
+was started minimized or obscured.
+.Pp
+This all begs for a more general user notifications system to be implemented.

usr.bin/leave/leave.c

@@ -0,0 +1,185 @@
+/*	$NetBSD: leave.c,v 1.15 2011/09/16 15:39:27 joerg Exp $	*/
+
+/*
+ * Copyright (c) 1980, 1988, 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. 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.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)leave.c	8.1 (Berkeley) 6/6/93";
+#else
+__RCSID("$NetBSD: leave.c,v 1.15 2011/09/16 15:39:27 joerg Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <sys/time.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <err.h>
+#include <unistd.h>
+
+#define	SECOND	1
+#define MINUTE	(SECOND * 60)
+#define	HOUR	(MINUTE * 60) 
+
+/*
+ * leave [[+]hhmm]
+ *
+ * Reminds you when you have to leave.
+ * Leave prompts for input and goes away if you hit return.
+ * It nags you like a mother hen.
+ */
+
+__dead static void doalarm(u_int);
+__dead static void usage(void);
+
+int
+main(int argc, char **argv)
+{
+	u_int secs;
+	int hours, minutes;
+	char c, *cp;
+	struct tm *t = NULL;
+	time_t now;
+	int plusnow;
+	char buf[50];
+
+	if (setvbuf(stdout, NULL, _IONBF, 0) != 0)
+		errx(1, "Cannot set stdout to unbuffered.");
+
+	if (argc < 2) {
+		(void)puts("When do you have to leave? ");
+		cp = fgets(buf, sizeof(buf), stdin);
+		if (cp == NULL || *cp == '\n')
+			exit(0);
+	} else
+		cp = argv[1];
+
+	if (*cp == '+') {
+		plusnow = 1;
+		++cp;
+	} else {
+		plusnow = 0;
+		(void)time(&now);
+		t = localtime(&now);
+	}
+
+	for (hours = 0; (c = *cp) && c != '\n'; ++cp) {
+		if (!isdigit((unsigned char)c))
+			usage();
+		hours = hours * 10 + (c - '0');
+	}
+	minutes = hours % 100;
+	hours /= 100;
+
+	if (minutes < 0 || minutes > 59)
+		usage();
+	if (plusnow)
+		secs = (hours * HOUR) + (minutes * MINUTE);
+	else {
+		if (hours > 23)
+			usage();
+		if (t->tm_hour >= 12)
+			t->tm_hour -= 12;
+		if (hours >= 12)
+			hours -= 12;
+		if (t->tm_hour > hours ||
+		    (t->tm_hour == hours && minutes <= t->tm_min))
+			hours += 12;
+		secs = (hours - t->tm_hour) * HOUR;
+		secs += (minutes - t->tm_min) * MINUTE;
+	}
+	doalarm(secs);
+	exit(0);
+}
+
+static void
+doalarm(u_int secs)
+{
+	int bother;
+	time_t daytime;
+
+	switch (fork()) {
+	case 0:
+		break;
+	case -1:
+		err(1, "Fork failed");
+		/*NOTREACHED*/
+	default:
+		exit(0);
+	}
+
+	(void)time(&daytime);
+	daytime += secs;
+	printf("Alarm set for %.16s. (pid %u)\n",
+	    ctime(&daytime), (unsigned)getpid());
+
+	/*
+	 * if write fails, we've lost the terminal through someone else
+	 * causing a vhangup by logging in.
+	 */
+#define	FIVEMIN	(5 * MINUTE)
+	if (secs >= FIVEMIN) {
+		sleep(secs - FIVEMIN);
+		if (puts("\07\07You have to leave in 5 minutes.\n") == EOF)
+			exit(0);
+		secs = FIVEMIN;
+	}
+
+#define	ONEMIN	(MINUTE)
+	if (secs >= ONEMIN) {
+		sleep(secs - ONEMIN);
+		if (puts("\07\07Just one more minute!\n") == EOF)
+			exit(0);
+	}
+
+	for (bother = 10; bother--;) {
+		sleep((u_int)ONEMIN);
+		if (puts("\07\07Time to leave!\n") == EOF)
+			exit(0);
+	}
+
+	(void)puts("\07\07That was the last time I'll tell you.  Bye.\n");
+	exit(0);
+}
+
+static void
+usage(void)
+{
+	(void)fprintf(stderr, "usage: %s [[+]hhmm]\n", getprogname());
+	exit(1);
+}