src, lib: deduplicate errnoException

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/util.js b/lib/util.js
index 4f9d06943e..f02aa8f6a4 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -601,3 +601,15 @@ exports.pump = exports.deprecate(function(readStream, writeStream, callback) {
     call(err);
   });
 }, 'util.pump(): Use readableStream.pipe() instead');
+
+
+var uv;
+exports._errnoException = function(err, syscall) {
+  if (typeof uv === 'undefined') uv = process.binding('uv');
+  var errname = uv.errname(err);
+  var e = new Error(syscall + ' ' + errname);
+  e.code = errname;
+  e.errno = errname;
+  e.syscall = syscall;
+  return e;
+};