From bfdc421ddadd35b2ea5de07a756a52b881c7a981 Mon Sep 17 00:00:00 2001
From: Ryan Dahl <ry@tinyclouds.org>
Date: Sat, 20 Mar 2010 03:01:17 -0700
Subject: [PATCH] Don't kill negative PIDs

Fixes issue GH-79.
---
 src/node_child_process.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/node_child_process.cc b/src/node_child_process.cc
index 870269f5fd..c1f6237c8e 100644
--- a/src/node_child_process.cc
+++ b/src/node_child_process.cc
@@ -129,6 +129,10 @@ Handle<Value> ChildProcess::Kill(const Arguments& args) {
   ChildProcess *child = ObjectWrap::Unwrap<ChildProcess>(args.Holder());
   assert(child);
 
+  if (child->pid_ < 1) {
+    return ThrowException(Exception::Error(String::New("No such process")));
+  }
+
   int sig = SIGTERM;
 
   if (args.Length() > 0) {
@@ -266,6 +270,7 @@ void ChildProcess::OnExit(int code) {
 
 
 int ChildProcess::Kill(int sig) {
+  if (pid_ > 0) return -1;
   return kill(pid_, sig);
 }