setpgrp.c.patch   [plain text]

--- setpgrp.c.orig	2006-09-17 12:11:20.000000000 -0700
+++ setpgrp.c	2006-09-24 16:13:25.000000000 -0700
@@ -40,8 +40,13 @@
 #include <sys/types.h>
 #include <unistd.h>
 
-int
-setpgrp(pid_t pid, pid_t pgid)
+/* UNIX03 only */
+pid_t
+setpgrp(void)
 {
-	return(setpgid(pid, pgid));
+	pid_t pgid = getpgrp();
+	pid_t pid = getpid();
+	if (pgid != pid)
+	    setpgid(pid, pid);
+	return pid;
 }