X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=main.m;h=a984ac26dadd4cd138b9e3e182adc88a8ac34b66;hb=refs%2Fheads%2Fmaster;hp=6c98a2ddcb9f1043f7428e938fb1890bb0fe3607;hpb=d27548f80fe411fda2ee69c74a24eab4292267e9;p=chaz%2Fthecheat

diff --git a/main.m b/main.m
index 6c98a2d..a984ac2 100644
--- a/main.m
+++ b/main.m
@@ -1,28 +1,104 @@
 
-// **********************************************************************
-// 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>
 
 
-int main( int argc, const char *argv[] )
+/*
+ * 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
+
+	OSStatus myStatus;
+	
+	// set up Authorization Item
+	AuthorizationItem myItems[1];
+	myItems[0].name = kAuthorizationRightExecute;
+	myItems[0].valueLength = 0;
+	myItems[0].value = NULL;
+	myItems[0].flags = 0;
+	
+	// Set up Authorization Rights
+	AuthorizationRights myRights;
+	myRights.count = sizeof (myItems) / sizeof (myItems[0]);
+	myRights.items = myItems;
+	
+	// set up Authorization Flags
+	AuthorizationFlags myFlags;
+	myFlags =
+		kAuthorizationFlagDefaults |
+		kAuthorizationFlagInteractionAllowed |
+		kAuthorizationFlagExtendRights;
+	
+	// Create an Authorization Ref using Objects above. NOTE: Login bod comes up with this call.
+	AuthorizationRef myAuthorizationRef;
+	myStatus = AuthorizationCreate (&myRights, kAuthorizationEmptyEnvironment, myFlags, &myAuthorizationRef);
+	
+	if (myStatus == errAuthorizationSuccess)
+	{
+		// prepare communication path - used to signal that process is loaded
+		FILE *myCommunicationsPipe = NULL;
+		char myReadBuffer[] = " ";
+
+		// run this app in GOD mode by passing authorization ref and comm pipe (asynchoronous call to external application)
+		myStatus = AuthorizationExecuteWithPrivileges(myAuthorizationRef,FullPathToMe,kAuthorizationFlagDefaults,nil,&myCommunicationsPipe);
+
+		// external app is running asynchronously - it will send to stdout when loaded
+		if (myStatus == errAuthorizationSuccess)
+		{
+			read (fileno (myCommunicationsPipe), myReadBuffer, sizeof (myReadBuffer));
+			fclose(myCommunicationsPipe);
+		}
+		
+		// release authorization reference
+		myStatus = AuthorizationFree (myAuthorizationRef, kAuthorizationFlagDestroyRights);
+	}
+}
+
+/*
+ * 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 || checkExecutablePermissions();
+}
+
+int main( int argc, char *argv[] )
 {
 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 	
@@ -31,9 +107,33 @@ int main( int argc, const 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
 	
-    return NSApplicationMain( argc, (const char **) argv );
+	if (amIWorthy())
+	{
+#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
+}