update contact information and project URL

[chaz/thecheat] / main.m

diff --git a/main.m b/main.m
index 7075d5dff800dfcd9b569558a32c3f2185b07d99..a984ac26dadd4cd138b9e3e182adc88a8ac34b66 100644 (file)
--- a/main.m
+++ b/main.m
@@ -1,29 +1,28 @@
 
-// **********************************************************************
-// The Cheat - A universal game cheater for Mac OS X
-// (C) 2003-2005 Chaz McGarvey (BrokenZipper)
-// 
-// This program is free software; you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 1, or (at your option)
-// any later version.
-// 
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-// 
-// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-// 
+/*
+ * The Cheat - The legendary universal game trainer for Mac OS X.
+ * http://www.brokenzipper.com/trac/wiki/TheCheat
+ *
+ * Copyright (c) 2003-2011, Charles McGarvey et al.
+ *
+ * Distributable under the terms and conditions of the 2-clause BSD
+ * license; see the file COPYING for the legal text of the license.
+ */
 
 #import <Cocoa/Cocoa.h>
 #import <Foundation/foundation.h>
 #import <SecurityFoundation/SFAuthorization.h>
 #import <Security/AuthorizationTags.h>
 #include "ChazLog.h"
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
 
+
+/*
+ * I think this function was ripped from the iHaxGamez project, so it
+ * remains licensed under the GPL.
+ */
 void authMe(char * FullPathToMe)
 {
        // get authorization as root
@@ -74,13 +73,29 @@ void authMe(char * FullPathToMe)
        }
 }
 
+/*
+ * I think this function was ripped from the iHaxGamez project, so it
+ * remains licensed under the GPL.
+ */
+bool checkExecutablePermissions(void)
+{
+       NSDictionary    *applicationAttributes = [[NSFileManager defaultManager] fileAttributesAtPath:[[NSBundle mainBundle] executablePath] traverseLink: YES];
+       
+       // We expect 2755 as octal (1517 as decimal, -rwxr-sr-x as extended notation)
+       return ([applicationAttributes filePosixPermissions] == 1517 && [[applicationAttributes fileGroupOwnerAccountName] isEqualToString: @"procmod"]);
+}
+
+/*
+ * I think this function was ripped from the iHaxGamez project, so it
+ * remains licensed under the GPL.
+ */
 bool amIWorthy(void)
 {
        // running as root?
        AuthorizationRef myAuthRef;
        OSStatus stat = AuthorizationCopyPrivilegedReference(&myAuthRef,kAuthorizationFlagDefaults);
        
-       return stat == errAuthorizationSuccess;
+       return stat == errAuthorizationSuccess || checkExecutablePermissions();
 }
 
 int main( int argc, char *argv[] )
@@ -92,20 +107,33 @@ int main( int argc, char *argv[] )
        ChazDebugSetup();
        ChazMapLogToDebug();
        
-       [pool release];
+#ifdef __ppc__
+       // PPC machines whose operating system is below leopard do not need authorization
+       SInt32 osxMajorVersion;
+       Gestalt(gestaltSystemVersionMinor, &osxMajorVersion);
+       if (osxMajorVersion < 5)
+       {
+               [pool release];
+               return NSApplicationMain(argc,  (const char **) argv);
+       }
+#endif
        
        if (amIWorthy())
        {
-               printf("Don't forget to flush! ;-) "); // signal back to close caller           
+#ifndef _DEBUG
+               printf("Don't forget to flush! ;-) "); // signal back to close caller
+#endif
                fflush(stdout);
                
+               [pool release];
                return NSApplicationMain(argc,  (const char **) argv);
        }
        else
        {
                authMe(argv[0]);
+               [pool release];
                return 0;
        }
        
        ChazDebugCleanup();
-}
\ No newline at end of file
+}