From: Karel Zak <kzak@redhat.com>
Date: Mon, 9 Mar 2009 20:09:50 +0000 (+0100)
Subject: renice: add -n option for compatibility with POSIX
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7cfbafda9c484a8cadefc47ee115086e803d9391;p=util-linux

renice: add -n option for compatibility with POSIX

The -n option is required by POSIX.1-200x.

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/sys-utils/renice.1 b/sys-utils/renice.1
index 3c20d6eb..32a23e14 100644
--- a/sys-utils/renice.1
+++ b/sys-utils/renice.1
@@ -29,7 +29,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     @(#)renice.8	8.1 (Berkeley) 6/9/93
+.\"     @(#)renice.8   8.1 (Berkeley) 6/9/93
 .\"
 .Dd June 9, 1993
 .Dt RENICE 1
@@ -39,6 +39,7 @@
 .Nd alter priority of running processes
 .Sh SYNOPSIS
 .Nm renice
+.Op Fl n
 .Ar priority
 .Oo
 .Op Fl p
@@ -74,6 +75,10 @@ their process ID's.
 Options supported by
 .Nm renice :
 .Bl -tag -width Ds
+.It Fl n, Fl Fl priority
+The scheduling
+.Ar priority
+of the process, process group, or user.
 .It Fl g, Fl Fl pgrp
 Force 
 .Ar who
diff --git a/sys-utils/renice.c b/sys-utils/renice.c
index ac05d258..879e8bd9 100644
--- a/sys-utils/renice.c
+++ b/sys-utils/renice.c
@@ -51,14 +51,15 @@ int donice(int,int,int);
 void usage(int rc)
 {
 	printf( _("\nUsage:\n"
-		" renice priority [-p|--pid] pid [... pid]\n"
-		" renice priority  -g|--pgrp pgrp [... pgrp]\n"
-		" renice priority  -u|--user user [... user]\n"
+		" renice [-n] priority [-p|--pid] pid  [... pid]\n"
+		" renice [-n] priority  -g|--pgrp pgrp [... pgrp]\n"
+		" renice [-n] priority  -u|--user user [... user]\n"
 		" renice -h | --help\n"
 		" renice -v | --version\n\n"));
 
 	exit(rc);
 }
+
 /*
  * Change the priority (nice) of processes
  * or groups of processes which are already
@@ -93,6 +94,11 @@ main(int argc, char **argv)
 	if (argc < 2)
 		usage(EXIT_FAILURE);
 
+	if (strcmp(*argv, "-n") == 0 || strcmp(*argv, "--priority") == 0) {
+		argc--;
+		argv++;
+	}
+
 	prio = strtol(*argv, &endptr, 10);
 	if (*endptr)
 		usage(EXIT_FAILURE);