# HG changeset patch
# User Rob Landley <rob@landley.net>
# Date 1345173870 18000
# Node ID 2364ace48ab121cdc377f2575064663f59e5b5a9
# Parent  131571cf708c03065d1f1f4417c0bea27b4bcae2
Bugfix from Avery Pennarun: getpriority() uses a different range than nice(), so follow thenice man page and zero errno then check it if nice returns -1.

diff -r 131571cf708c -r 2364ace48ab1 toys/nice.c
--- a/toys/nice.c	Wed Aug 15 12:53:54 2012 +0200
+++ b/toys/nice.c	Thu Aug 16 22:24:30 2012 -0500
@@ -34,9 +34,8 @@
 {
 	if (!toys.optflags) TT.priority = 10;
 
-	nice(TT.priority);
-	if (getpriority(PRIO_PROCESS, getpid()) != TT.priority)
-		perror_exit("Can't set priority");
+	errno = 0;
+	if (nice(TT.priority)==-1 && errno) perror_exit("Can't set priority");
 
 	xexec(toys.optargs);
 }