Add os module and getHostname

Author: mscdex

cmake/node_build.cmake

@@ -32,6 +32,7 @@ set(node_sources
   src/node_stdio.cc
   src/node_timer.cc
   src/node_script.cc
+  src/node_os.cc
   src/node_natives.h
   ${node_extra_src})
 

doc/api/_toc.markdown

@@ -28,6 +28,7 @@
 * [Child Processes](child_processes.html)
 * [Assertion Testing](assert.html)
 * [TTY](tty.html)
+* [OS](os.html)
 * Appendixes
   * [Appendix 1: Recommended Third-party Modules](appendix_1.html)
   * [Appendix 2: Deprecated API's](appendix_2.html)

doc/api/os.markdown

@@ -0,0 +1,7 @@
+## os Module
+
+Use `require('os')` to access this module.
+
+### tls.getHostname
+
+Returns the hostname of the operating system.

lib/os.js

@@ -0,0 +1,3 @@
+var binding = process.binding('os');
+
+exports.getHostname = binding.getHostname;

src/node_extensions.h

@@ -12,5 +12,6 @@ NODE_EXT_LIST_ITEM(node_net)
 NODE_EXT_LIST_ITEM(node_http_parser)
 NODE_EXT_LIST_ITEM(node_signal_watcher)
 NODE_EXT_LIST_ITEM(node_stdio)
+NODE_EXT_LIST_ITEM(node_os)
 NODE_EXT_LIST_END
 

src/node_os.cc

@@ -0,0 +1,34 @@
+#include <node_os.h>
+
+#include <node.h>
+#include <v8.h>
+
+#include <errno.h>
+#include <unistd.h>  // gethostname
+
+namespace node {
+
+using namespace v8;
+
+static Handle<Value> GetHostname(const Arguments& args) {
+  HandleScope scope;
+  char s[255];
+  int r = gethostname(s, 255);
+
+  if (r < 0) {
+    return ThrowException(ErrnoException(errno, "gethostname"));
+  }
+
+  return scope.Close(String::New(s));
+}
+
+void OS::Initialize(v8::Handle<v8::Object> target) {
+  HandleScope scope;
+
+  NODE_SET_METHOD(target, "getHostname", GetHostname);
+}
+
+
+}  // namespace node
+
+NODE_MODULE(node_os, node::OS::Initialize);

src/node_os.h

@@ -0,0 +1,17 @@
+#ifndef node_os_h
+#define node_os_h
+
+#include <node.h>
+#include <v8.h>
+
+namespace node {
+
+class OS {
+public:
+  static void Initialize (v8::Handle<v8::Object> target);
+};
+
+
+}  // namespace node
+
+#endif  // node_os_h

test/simple/test-os-hostname.js

@@ -0,0 +1,5 @@
+var common = require('../common');
+var assert = require('assert');
+var os = require('os');
+
+assert.ok(os.getHostname().length > 0);

wscript

@@ -598,6 +598,7 @@ def build(bld):
     src/node_stdio.cc
     src/node_timer.cc
     src/node_script.cc
+    src/node_os.cc
   """
   node.source += bld.env["PLATFORM_FILE"]
   if not product_type_is_lib: