===================================================================
RCS file: /cvs/prex-old/usr/lib/posix/process/getpgid.c,v
retrieving revision 1.1.1.1
retrieving revision 1.1.1.1.2.1
diff -u -r1.1.1.1 -r1.1.1.1.2.1
--- prex-old/usr/lib/posix/process/getpgid.c	2008/06/03 10:38:50	1.1.1.1
+++ prex-old/usr/lib/posix/process/getpgid.c	2008/08/13 17:12:40	1.1.1.1.2.1
@@ -41,10 +41,9 @@
 	struct msg m;
 
 	m.hdr.code = PS_GETPGID;
-	m.data[0] = pid ? pid : getpid();
-	__posix_call(__proc_obj, &m, sizeof(m), 1);
-
-	/* XXX: getpigid() does not return error */
+	m.data[0] = pid;
+	if (__posix_call(__proc_obj, &m, sizeof(m), 1))
+		return -1;
 
 	return m.data[0];
 }