author Josh Aas <>
Fri, 26 Feb 2010 14:18:12 -0600
changeset 38766 1e30b2e41326c982ca849f751dc4c633d30dfc13
parent 36532 641a22b4100a85a21b610eb207617515880cbe25
permissions -rw-r--r--
Fix memory leaks in Mac OS X CoreWLAN code. b=548796 r=smichaud

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is Geolocation.
 * The Initial Developer of the Original Code is Mozilla Foundation
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 *  Doug Turner <>  (Original Author)
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#import <Cocoa/Cocoa.h>

#include <mach-o/dyld.h>
#include <dlfcn.h>
#include <unistd.h>

#include <objc/objc.h>
#include <objc/objc-runtime.h>

#include "nsObjCExceptions.h"
#include "nsAutoPtr.h"
#include "nsCOMArray.h"
#include "nsWifiMonitor.h"
#include "nsWifiAccessPoint.h"

BOOL UsingSnowLeopard() {
  static PRInt32 gOSXVersion = 0x0;
  if (gOSXVersion == 0x0) {
    Gestalt(gestaltSystemVersion, (SInt32*)&gOSXVersion);
  return (gOSXVersion >= 0x00001060);

GetAccessPointsFromWLAN(nsCOMArray<nsWifiAccessPoint> &accessPoints)

  if (!UsingSnowLeopard())


  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

  @try {
    NSBundle * bundle = [[[NSBundle alloc] initWithPath:@"/System/Library/Frameworks/CoreWLAN.framework"] autorelease];
    if (!bundle) {
      [pool release];

    Class CWI_class = [bundle classNamed:@"CWInterface"];
    if (!CWI_class) {
      [pool release];

    id scanResult = [[CWI_class interface] scanForNetworksWithParameters:nil error:nil];
    if (!scanResult) {
      [pool release];

    NSArray* scan = [NSMutableArray arrayWithArray:scanResult];
    NSEnumerator *enumerator = [scan objectEnumerator];

    while (id anObject = [enumerator nextObject]) {
      nsWifiAccessPoint* ap = new nsWifiAccessPoint();
      if (!ap) {
        [pool release];
        return NS_ERROR_OUT_OF_MEMORY;
      NSData* data = [anObject bssidData];
      ap->setMac((unsigned char*)[data bytes]);
      ap->setSignal([[anObject rssi] intValue]);
      ap->setSSID([[anObject ssid] UTF8String], 32);

  @catch(NSException *_exn) {
    [pool release];

  [pool release];

  return NS_OK;