Importing usr.bin/renice

No Minix-specific changes needed.

Change-Id: Ib698cef1dfa6b386cf658b6026409e0336a8b1c4

distrib/sets/lists/minix/mi

@@ -454,6 +454,7 @@
 ./usr/bin/remsync			minix-sys
 ./usr/bin/repartition                   minix-sys
 ./usr/bin/restore			minix-sys
+./usr/bin/renice			minix-sys
 ./usr/bin/rev				minix-sys
 ./usr/bin/rget				minix-sys
 ./usr/bin/rlogin			minix-sys
@@ -4449,6 +4450,7 @@
 ./usr/man/man8/rdate.8					minix-sys
 ./usr/man/man8/readclock.8					minix-sys
 ./usr/man/man8/reboot.8					minix-sys
+./usr/man/man8/renice.8					minix-sys
 ./usr/man/man8/repartition.8					minix-sys
 ./usr/man/man8/rshd.8					minix-sys
 ./usr/man/man8/screendump.8					minix-sys

releasetools/nbsd_ports

@@ -194,6 +194,7 @@
 2013/10/17 12:00:00,usr.bin/printenv
 2012/10/17 12:00:00,usr.bin/printf
 2013/10/24 12:00:00,usr.bin/pwhash
+2012/10/17 12:00:00,usr.bin/renice
 2013/09/28 12:00:00,usr.bin/rev
 2010/02/19 16:35:27,usr.bin/sed
 2010/05/27 08:40:19,usr.bin/seq

usr.bin/Makefile

@@ -21,7 +21,7 @@ SUBDIR= \
 	nbperf newgrp nice nl nohup nvi \
 	passwd pr \
 	printenv printf pwhash \
-	rev \
+	renice rev \
 	\
 	shuffle sed seq \
 	sort stat su \

usr.bin/renice/Makefile

@@ -0,0 +1,7 @@
+#	$NetBSD: Makefile,v 1.5 1997/01/09 14:39:10 tls Exp $
+#	from: @(#)Makefile	8.1 (Berkeley) 6/9/93
+
+PROG=	renice
+MAN=	renice.8
+
+.include <bsd.prog.mk>

usr.bin/renice/renice.8

@@ -0,0 +1,151 @@
+.\"	$NetBSD: renice.8,v 1.13 2009/04/08 13:20:23 joerg Exp $
+.\"
+.\" Copyright (c) 1983, 1991, 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.
+.\"
+.\"     from: @(#)renice.8	8.1 (Berkeley) 6/9/93
+.\"	$NetBSD: renice.8,v 1.13 2009/04/08 13:20:23 joerg Exp $
+.\"
+.Dd June 9, 1993
+.Dt RENICE 8
+.Os
+.Sh NAME
+.Nm renice
+.Nd alter priority of running processes
+.Sh SYNOPSIS
+.Nm
+.Ar priority
+.Oo
+.Op Fl p
+.Ar pid ...
+.Oc
+.Oo
+.Fl g
+.Ar pgrp ...
+.Oc
+.Oo
+.Fl u
+.Ar user ...
+.Oc
+.Nm
+.Fl n
+.Ar increment
+.Oo
+.Op Fl p
+.Ar pid ...
+.Oc
+.Oo
+.Fl g
+.Ar pgrp ...
+.Oc
+.Oo
+.Fl u
+.Ar user ...
+.Oc
+.Sh DESCRIPTION
+.Nm
+alters the
+scheduling priority of one or more running processes.
+The following
+.Ar who
+parameters are interpreted as process ID's, process group
+ID's, or user names.
+.Nm Ns 'ing
+a process group causes all processes in the process group
+to have their scheduling priority altered.
+.Nm Ns 'ing
+a user causes all processes owned by the user to have
+their scheduling priority altered.
+By default, the processes to be affected are specified by
+their process ID's.
+.Pp
+Options supported by
+.Nm :
+.Bl -tag -width Ds
+.It Fl g
+Force
+.Ar who
+parameters to be interpreted as process group ID's.
+.It Fl n
+Instead of changing the specified processes to the given priority,
+interpret the following argument as an increment to be applied to
+the current priority of each process.
+.It Fl u
+Force the
+.Ar who
+parameters to be interpreted as user names.
+.It Fl p
+Resets the
+.Ar who
+interpretation to be (the default) process ID's.
+.El
+.Pp
+For example,
+.Bd -literal -offset indent
+renice +1 987 -u daemon root -p 32
+.Ed
+.Pp
+would change the priority of process ID's 987 and 32, and
+all processes owned by users daemon and root.
+.Pp
+Users other than the super-user may only alter the priority of
+processes they own,
+and can only monotonically increase their ``nice value''
+within the range 0 to
+.Dv PRIO_MAX
+(20).
+(This prevents overriding administrative fiats.)
+The super-user
+may alter the priority of any process
+and set the priority to any value in the range
+.Dv PRIO_MIN
+(\-20)
+to
+.Dv PRIO_MAX .
+.Pp
+Useful priorities are:
+0, the ``base'' scheduling priority;
+20, the affected processes will run only when nothing at the base priority
+wants to;
+anything negative, the processes will receive a scheduling preference.
+.Sh FILES
+.Bl -tag -width /etc/passwd -compact
+.It Pa /etc/passwd
+to map user names to user ID's
+.El
+.Sh SEE ALSO
+.Xr nice 1 ,
+.Xr getpriority 2 ,
+.Xr setpriority 2
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.0 .
+.Sh BUGS
+Non super-users can not increase scheduling priorities of their own processes,
+even if they were the ones that decreased the priorities in the first place.

usr.bin/renice/renice.c

@@ -0,0 +1,181 @@
+/*	$NetBSD: renice.c,v 1.18 2008/07/21 14:19:25 lukem Exp $	*/
+
+/*
+ * Copyright (c) 1983, 1989, 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) 1983, 1989, 1993\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+/*static char sccsid[] = "from: @(#)renice.c	8.1 (Berkeley) 6/9/93";*/
+__RCSID("$NetBSD: renice.c,v 1.18 2008/07/21 14:19:25 lukem Exp $");
+#endif /* not lint */
+
+#include <sys/resource.h>
+
+#include <err.h>
+#include <errno.h>
+#include <limits.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+
+static int	getnum(const char *, const char *, int *);
+static int	donice(int, id_t, int, int);
+static void	usage(void) __dead;
+
+/*
+ * Change the priority (nice) of processes
+ * or groups of processes which are already
+ * running.
+ */
+int
+main(int argc, char **argv)
+{
+	int which = PRIO_PROCESS;
+	int prio, errs = 0, incr = 0;
+	id_t who = 0;
+
+	argc--, argv++;
+	if (argc < 2)
+		usage();
+	if (strcmp(*argv, "-n") == 0) {
+		incr = 1;
+		argc--, argv++;
+		if (argc == 0)
+			usage();
+	}
+	if (getnum("priority", *argv, &prio))
+		return 1;
+	argc--, argv++;
+	for (; argc > 0; argc--, argv++) {
+		if (strcmp(*argv, "-g") == 0) {
+			which = PRIO_PGRP;
+			continue;
+		}
+		if (strcmp(*argv, "-u") == 0) {
+			which = PRIO_USER;
+			continue;
+		}
+		if (strcmp(*argv, "-p") == 0) {
+			which = PRIO_PROCESS;
+			continue;
+		}
+		if (which == PRIO_USER) {
+			struct passwd *pwd = getpwnam(*argv);
+			
+			if (pwd == NULL) {
+				warnx("%s: unknown user", *argv);
+				errs++;
+				continue;
+			}
+			who = (id_t)pwd->pw_uid;
+		} else {
+			int twho;
+			if (getnum("pid", *argv, &twho)) {
+				errs++;
+				continue;
+			}
+			if (twho < 0) {
+				warnx("%s: bad value", *argv);
+				errs++;
+				continue;
+			}
+			who = (id_t)twho;
+		}
+		errs += donice(which, who, prio, incr);
+	}
+	return errs == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+static int
+getnum(const char *com, const char *str, int *val)
+{
+	long v;
+	char *ep;
+
+	errno = 0;
+	v = strtol(str, &ep, 0);
+
+	if (*ep) {
+		warnx("Bad %s argument: %s", com, str);
+		return 1;
+	}
+	if ((v == LONG_MIN || v == LONG_MAX) && errno == ERANGE) {
+		warn("Invalid %s argument: %s", com, str);
+		return 1;
+	}
+
+	*val = (int)v;
+	return 0;
+}
+
+static int
+donice(int which, id_t who, int prio, int incr)
+{
+	int oldprio;
+
+	errno = 0;
+	if ((oldprio = getpriority(which, who)) == -1 && errno != 0) {
+		warn("%d: getpriority", who);
+		return 1;
+	}
+
+	if (incr)
+		prio = oldprio + prio;
+
+	if (prio > PRIO_MAX)
+		prio = PRIO_MAX;
+	if (prio < PRIO_MIN)
+		prio = PRIO_MIN;
+
+	if (setpriority(which, who, prio) == -1) {
+		warn("%d: setpriority", who);
+		return 1;
+	}
+	(void)printf("%d: old priority %d, new priority %d\n",
+	    who, oldprio, prio);
+	return 0;
+}
+
+static void
+usage(void)
+{
+
+	(void)fprintf(stderr, "Usage: %s [<priority> | -n <incr>] ",
+	    getprogname());
+	(void)fprintf(stderr, "[[-p] <pids>...] [-g <pgrp>...] ");
+	(void)fprintf(stderr, "[-u <user>...]\n");
+	exit(1);
+}