ffi, dynamic_library: export the dlfcn.h flags from the C layer

Author: TooTallNate

lib/dynamic_library.js

@@ -6,7 +6,8 @@
 var ForeignFunction = require('./foreign_function')
   , assert = require('assert')
   , debug = require('debug')('ffi:DynamicLibrary')
-  , funcs = require('./bindings').StaticFunctions
+  , bindings = require('./bindings')
+  , funcs = bindings.StaticFunctions
   , ref = require('ref')
   , read  = require('fs').readFileSync
 
@@ -76,15 +77,15 @@ function DynamicLibrary (path, mode) {
 module.exports = DynamicLibrary
 
 /**
- * See "dlfcn.h"
+ * Set the exported flags from "dlfcn.h"
  */
 
-DynamicLibrary.FLAGS = {
-    'RTLD_LAZY':   0x1
-  , 'RTLD_NOW':    0x2
-  , 'RTLD_LOCAL':  0x4
-  , 'RTLD_GLOBAL': 0x8
-}
+DynamicLibrary.FLAGS = {};
+Object.keys(bindings).forEach(function (k) {
+  if (!/^RTLD_/.test(k)) return;
+  DynamicLibrary.FLAGS[k] = bindings[k];
+});
+
 
 /**
  * Close this library, returns the result of the dlclose() system function.

lib/ffi.js

@@ -17,7 +17,9 @@ var bindings = require('./bindings')
 , 'FFI_OK', 'FFI_BAD_TYPEDEF', 'FFI_BAD_ABI'
 , 'FFI_DEFAULT_ABI', 'FFI_FIRST_ABI', 'FFI_LAST_ABI', 'FFI_SYSV', 'FFI_UNIX64'
 , 'FFI_WIN64', 'FFI_VFP', 'FFI_STDCALL', 'FFI_THISCALL', 'FFI_FASTCALL'
-, 'FFI_MS_CDECL'].forEach(function (prop) {
+, 'RTLD_LAZY', 'RTLD_NOW', 'RTLD_LOCAL', 'RTLD_GLOBAL', 'RTLD_NOLOAD'
+, 'RTLD_NODELETE', 'RTLD_FIRST', 'RTLD_NEXT', 'RTLD_DEFAULT', 'RTLD_SELF'
+, 'RTLD_MAIN_ONLY', 'FFI_MS_CDECL'].forEach(function (prop) {
   if (!bindings.hasOwnProperty(prop)) {
     return debug('skipping exporting of non-existant property', prop)
   }