added CFMessagePort IPC

SpringBoardAccess/Makefile.in

@@ -1,20 +1,26 @@
 NAME = SpringBoardAccess
 
+CC = @CC@
 OBJC     = @OBJC@
 LDFLAGS  = @LDFLAGS@
 CPPFLAGS = @CPPFLAGS@
 
-LDFLAGS += -lobjc \
-		  -multiply_defined suppress \
-		  -framework CoreFoundation \
-		  -framework Foundation \
-		  -framework UIKit \
-		  -L../3rdparty -lsubstrate
+LIB_LDFLAGS = -lobjc \
+              -multiply_defined suppress \
+			  -framework CoreFoundation \
+			  -framework Foundation \
+			  -framework UIKit \
+			  -L../3rdparty -lsubstrate
 
-all: $(NAME).dylib
+APP_LDFLAGS = -framework CoreFoundation
+
+all: $(NAME).dylib $(NAME)-test
 
 clean:
 	rm -f $(NAME).dylib
 	
-$(NAME).dylib: $(NAME).m
-	$(OBJC) $(CPPFLAGS) -dynamiclib -o $@ $(NAME).m -init _$(NAME)Initialize $(LDFLAGS)
+$(NAME).dylib: $(NAME).mm
+	$(OBJC) $(CPPFLAGS) -dynamiclib -o $@ $(NAME).mm -init _$(NAME)Initialize $(LDFLAGS) $(LIB_LDFLAGS)
+
+$(NAME)-test: $(NAME)-test.c
+	$(OBJC) $(CPPFLAGS) -o $@ $(NAME)-test.c $(LDFLAGS) $(APP_LDFLAGS)

SpringBoardAccess/SpringBoardAccess-test.c

@@ -0,0 +1,20 @@
+#import <CoreFoundation/CoreFoundation.h>
+
+main() {
+	CFMessagePortRef remote = CFMessagePortCreateRemote(NULL, CFSTR("SpringBoardAccess"));
+	if (!remote) {
+		printf("Failed to get remote port\n");
+		exit(10);
+	}
+	char *message = "Hello, world!";
+	CFDataRef data, returnData = NULL;
+	data = CFDataCreate(NULL, (const UInt8 *)message, strlen(message)+1);
+	if (kCFMessagePortSuccess == CFMessagePortSendRequest(remote, 0, data, 1, 1, kCFRunLoopDefaultMode, &returnData) && NULL != returnData) {
+		printf("here is our return data: %s\n", 
+			   CFDataGetBytePtr(returnData));
+		CFRelease(returnData);
+	}
+	CFRelease(data);
+	CFRelease(remote);
+}
+

SpringBoardAccess/SpringBoardAccess.m

@@ -1,14 +0,0 @@
-//
-//  SpringBoardAccess.m
-//
-//  Created by Matthias Ringwald on 9/15/09.
-//
-
-#import <Foundation/Foundation.h>
-#import <CoreFoundation/CoreFoundation.h>
-
-#import "../3rdparty/substrate.h"
-
-void SpringBoardAccessInitialize(){
-	NSLog(@"SpringBoardAccessInitialize called!");
-}

SpringBoardAccess/SpringBoardAccess.mm

@@ -0,0 +1,66 @@
+//
+//  SpringBoardAccess.m
+//
+//  Created by Matthias Ringwald on 9/15/09.
+//
+
+#import <Foundation/Foundation.h>
+#import <CoreFoundation/CoreFoundation.h>
+
+#import "../3rdparty/substrate.h"
+#import "../3rdparty/SpringBoard.h"
+
+#define HOOK(class, name, type, args...) \
+static type (*_ ## class ## $ ## name)(class *self, SEL sel, ## args); \
+static type $ ## class ## $ ## name(class *self, SEL sel, ## args)
+
+#define CALL_ORIG(class, name, args...) \
+_ ## class ## $ ## name(self, sel, ## args)
+
+
+CFDataRef myCallBack(CFMessagePortRef local, SInt32 msgid, CFDataRef data, void *info) {
+	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+
+	
+	
+	char *message = "Thanks for calling!";
+	CFDataRef returnData = CFDataCreate(NULL, (const UInt8 *) message, strlen(message)+1);
+	NSLog(@"here is our received data: %s\n", CFDataGetBytePtr(data));
+	
+	[pool release]; 
+
+	return returnData;  // as stated in header, both data and returnData will be released for us after callback returns
+}
+
+//______________________________________________________________________________
+
+HOOK(SpringBoard, applicationDidFinishLaunching$, void, id app) {
+	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+
+    CALL_ORIG(SpringBoard, applicationDidFinishLaunching$, app);
+	
+	CFMessagePortRef local = CFMessagePortCreateLocal(NULL, CFSTR("SpringBoardAccess"), myCallBack, NULL, false);
+	CFRunLoopSourceRef source = CFMessagePortCreateRunLoopSource(NULL, local, 0);
+	CFRunLoopAddSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
+	
+    [pool release]; 
+}
+//______________________________________________________________________________
+
+extern "C" void SpringBoardAccessInitialize(){
+	NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
+	
+    // NOTE: This library should only be loaded for SpringBoard
+    NSString *identifier = [[NSBundle mainBundle] bundleIdentifier];
+    if (![identifier isEqualToString:@"com.apple.springboard"])
+        return;
+
+	NSLog(@"SpringBoardAccessInitialize called for SpringBoard!");
+	
+    // Setup hooks
+    Class $SpringBoard(objc_getClass("SpringBoard"));
+    _SpringBoard$applicationDidFinishLaunching$ =
+	MSHookMessage($SpringBoard, @selector(applicationDidFinishLaunching:), &$SpringBoard$applicationDidFinishLaunching$);
+
+    [pool release]; 
+}