From 976926376d249a92ee95cf585d58c31ccdd85545 Mon Sep 17 00:00:00 2001
From: Elijah Insua <tmpvar@gmail.com>
Date: Thu, 13 May 2010 12:42:17 -0700
Subject: [PATCH] Handle empty files with fs.readFile

---
 lib/fs.js                             |  4 ++++
 test/fixtures/empty.txt               |  0
 test/simple/test-fs-readfile-empty.js | 10 ++++++++++
 3 files changed, 14 insertions(+)
 create mode 100644 test/fixtures/empty.txt
 create mode 100644 test/simple/test-fs-readfile-empty.js

diff --git a/lib/fs.js b/lib/fs.js
index 033b8b7a14..fcb89d29f5 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -51,6 +51,10 @@ fs.readFile = function (path, encoding_, callback) {
       var buffer = new Buffer(size);
       var offset = 0;
       function doRead() {
+        if (size < 1) {
+          callback(null, buffer);
+          return;
+        }
         // position is offset or null so we can read files on unseekable mediums
         binding.read(fd, buffer, offset, size - offset, offset || null, function (err, amount) {
           if (err) {
diff --git a/test/fixtures/empty.txt b/test/fixtures/empty.txt
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/test/simple/test-fs-readfile-empty.js b/test/simple/test-fs-readfile-empty.js
new file mode 100644
index 0000000000..8073fb5938
--- /dev/null
+++ b/test/simple/test-fs-readfile-empty.js
@@ -0,0 +1,10 @@
+require('../common');
+
+var
+  path = require('path'),
+  fs = require('fs'),
+  fn = path.join(fixturesDir, 'empty.txt');
+
+fs.readFile(fn, function(err, data) {
+  assert.ok(data);
+});
\ No newline at end of file