initial population

2 files changed, 243 insertions, 0 deletions

diff --git a/usr.bin/nice/nice.1 b/usr.bin/nice/nice.1
new file mode 100644
index 0000000..87c211a
--- /dev/null
+++ b/usr.bin/nice/nice.1
@@ -0,0 +1,120 @@
+.\"	$NetBSD: nice.1,v 1.15 2012/03/22 07:58:19 wiz 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.
+.\"
+.\"	@(#)nice.1	8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt NICE 1
+.Os
+.Sh NAME
+.Nm nice
+.Nd execute a utility with an altered scheduling priority
+.Sh SYNOPSIS
+.Nm
+.Op Fl n Ar increment
+.Ar utility
+.Op Ar argument ...
+.Sh DESCRIPTION
+.Nm
+runs
+.Ar utility
+at an altered scheduling priority.
+If an
+.Ar increment
+is given, it is used; otherwise
+an increment of 10 is assumed.
+The super-user can run utilities with priorities higher than normal by using
+a negative
+.Ar increment .
+The priority can be adjusted over a
+range of -20 (the highest) to 20 (the lowest).
+A priority of 19 or 20
+will prevent a process from taking any cycles from others at nice 0 or
+better.
+.Pp
+Available options:
+.Bl -tag -width indent
+.It Fl n Ar increment
+A positive or negative decimal integer used to modify the system scheduling
+priority of
+.Ar utility .
+.El
+.Sh EXIT STATUS
+The
+.Nm
+utility exits with one of the following values:
+.Bl -tag -width indent
+.It 1-125
+An error occurred in the
+.Nm
+utility.
+.It 126
+The
+.Ar utility
+was found but could not be invoked.
+.It 127
+The
+.Ar utility
+could not be found.
+.El
+.Pp
+Otherwise, the exit status of
+.Nm
+will be that of
+.Ar utility .
+.Sh COMPATIBILITY
+The historic
+.Fl Ns Ar increment
+option has been deprecated but is still supported in this implementation.
+.Sh SEE ALSO
+.Xr csh 1 ,
+.Xr getpriority 2 ,
+.Xr setpriority 2 ,
+.Xr renice 8
+.Sh STANDARDS
+The
+.Nm
+utility conforms to
+.St -p1003.2-92 .
+.Sh HISTORY
+A
+.Nm
+utility appeared in
+.At v6 .
+.Sh BUGS
+.Nm
+is built into
+.Xr csh 1
+with a slightly different syntax than described here.
+The form
+.Ql nice +10
+nices to positive nice, and
+.Ql nice \-10
+can be used
+by the super-user to give a process more of the processor.
diff --git a/usr.bin/nice/nice.c b/usr.bin/nice/nice.c
new file mode 100644
index 0000000..de5fe5b
--- /dev/null
+++ b/usr.bin/nice/nice.c
@@ -0,0 +1,123 @@
+/*	$NetBSD: nice.c,v 1.15 2008/07/21 14:19:24 lukem Exp $	*/
+
+/*
+ * Copyright (c) 1989 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) 1989\
+ The Regents of the University of California.  All rights reserved.");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)nice.c	5.4 (Berkeley) 6/1/90";
+#endif
+__RCSID("$NetBSD: nice.c,v 1.15 2008/07/21 14:19:24 lukem Exp $");
+#endif /* not lint */
+
+#include <sys/time.h>
+#include <sys/resource.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <locale.h>
+#include <ctype.h>
+#include <errno.h>
+#include <err.h>
+#include <unistd.h>
+
+#define	DEFNICE	10
+
+static void usage(void) __dead;
+
+int
+main(int argc, char **argv)
+{
+	char *ep;
+	int niceness = DEFNICE;
+	int c;
+	long tmp;
+
+	setprogname(argv[0]);
+	(void)setlocale(LC_ALL, "");
+
+        /* handle obsolete -number syntax */
+        if (argc > 1 && argv[1][0] == '-' &&
+	    isdigit((unsigned char)argv[1][1])) {
+		niceness = atoi (argv[1] + 1);
+                argc--; argv++;
+        }
+
+	while ((c = getopt (argc, argv, "n:")) != -1) {
+		switch (c) {
+		case 'n':
+			errno = 0;
+			tmp = strtol(optarg, &ep, 10);
+			if (*ep != '\0' || tmp < INT_MIN || tmp > INT_MAX)
+				errx(EXIT_FAILURE, "invalid argument: `%s'",
+				    optarg);
+			niceness = (int)tmp;
+			break;
+		default:
+			usage();
+			break;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0)
+		usage();
+
+	errno = 0;
+	niceness += getpriority(PRIO_PROCESS, 0);
+	if (errno) {
+		err(EXIT_FAILURE, "getpriority");
+		/* NOTREACHED */
+	}
+	if (setpriority(PRIO_PROCESS, 0, niceness) == -1) {
+		warn("setpriority");
+	}
+
+	(void)execvp(argv[0], &argv[0]);
+	err((errno == ENOENT || errno == ENOTDIR) ? 127 : 126, "%s", argv[0]);
+	/* NOTREACHED */
+}
+
+static void
+usage(void)
+{
+	(void)fprintf(stderr,
+	    "Usage: %s [ -n increment ] utility [ argument ...]\n",
+	    getprogname());
+	exit(EXIT_FAILURE);
+}