I made some improvements that will make it much easier to use with less confusion

.gitignore

@@ -1,2 +1,4 @@
 build/
-PushMeBaby.xcodeproj/xcuserdata/
+PushMeBaby.xcodeproj/xcuserdata/
+PushMeBaby.xcodeproj/project.xcworkspace/
+PushMeBaby.xcodeproj/TemplateIcon.icns

Classes/ApplicationDelegate.h

@@ -17,7 +17,9 @@
 	SecKeychainRef keychain;
 	SecCertificateRef certificate;
 	SecIdentityRef identity;
+    NSWindow* window;
 }
+@property (nonatomic, retain) IBOutlet NSWindow* window;
 #pragma mark IBAction
 - (IBAction)push:(id)sender;
 @end

Classes/ApplicationDelegate.m

@@ -4,10 +4,22 @@
 //
 //  Created by Stefan Hafeneger on 07.04.09.
 //  Copyright 2009 __MyCompanyName__. All rights reserved.
+//  Modified by jlott on 01.01.2012
 //
 
 #import "ApplicationDelegate.h"
 
+// apple gateway must be production if using a production certificate, else if using a developer certificate, then use sandbox
+#define kApplePushGateway "gateway.push.apple.com" //"gateway.sandbox.push.apple.com"
+
+// Device token should be 32 bytes
+// The push text box requires there to be spaces in the token between every 8 characters.  There is code to check and fix this at runtime.
+#define kDeviceToken @"1111111122222222aaaaaaaabbbbbbbbccccccccddddddddeeeeeeeeffffffff"
+
+// name the cert to whatever you want.  Make sure the cert is bundled with app (check the Copy Bundle Resources build phase)
+// cert should be of extension ".cer"  and should NOT contain the private key, just the cert by itself.
+#define kPushCertificate @"Push_Notification_Certificate_Production.cer"
+
 @interface ApplicationDelegate ()
 #pragma mark Properties
 @property(nonatomic, retain) NSString *deviceToken, *payload, *certificate;
@@ -17,15 +29,17 @@ - (void)disconnect;
 @end
 
 @implementation ApplicationDelegate
+@synthesize window;
 
 #pragma mark Allocation
 
 - (id)init {
 	self = [super init];
 	if(self != nil) {
-		self.deviceToken = @"";
-		self.payload = @"{\"aps\":{\"alert\":\"This is some fancy message.\",\"badge\":1}}";
-		self.certificate = [[NSBundle mainBundle] pathForResource:@"apns" ofType:@"cer"];
+		self.deviceToken = kDeviceToken;
+		self.payload = @"{\"aps\":{\"alert\":\"This is some fancy message.\",\"badge\":1,\"sound\" : \"bingbong.aiff\"}}";
+        NSString* certificateName = kPushCertificate;
+		self.certificate = [[NSBundle mainBundle] pathForResource:[certificateName stringByDeletingPathExtension] ofType:[certificateName pathExtension]];
 	}
 	return self;
 }
@@ -76,41 +90,41 @@ - (void)connect {
 
 	// Establish connection to server.
 	PeerSpec peer;
-	result = MakeServerConnection("gateway.sandbox.push.apple.com", 2195, &socket, &peer);// NSLog(@"MakeServerConnection(): %d", result);
+	result = MakeServerConnection(kApplePushGateway, 2195, &socket, &peer); NSLog(@"MakeServerConnection(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Create new SSL context.
-	result = SSLNewContext(false, &context);// NSLog(@"SSLNewContext(): %d", result);
+	result = SSLNewContext(false, &context); NSLog(@"SSLNewContext(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Set callback functions for SSL context.
-	result = SSLSetIOFuncs(context, SocketRead, SocketWrite);// NSLog(@"SSLSetIOFuncs(): %d", result);
+	result = SSLSetIOFuncs(context, SocketRead, SocketWrite); NSLog(@"SSLSetIOFuncs(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Set SSL context connection.
-	result = SSLSetConnection(context, socket);// NSLog(@"SSLSetConnection(): %d", result);
+	result = SSLSetConnection(context, socket); NSLog(@"SSLSetConnection(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Set server domain name.
-	result = SSLSetPeerDomainName(context, "gateway.sandbox.push.apple.com", 30);// NSLog(@"SSLSetPeerDomainName(): %d", result);
-	
+	result = SSLSetPeerDomainName(context, kApplePushGateway, [[NSString stringWithUTF8String:kApplePushGateway] length]); NSLog(@"SSLSetPeerDomainName(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
+
 	// Open keychain.
-	result = SecKeychainCopyDefault(&keychain);// NSLog(@"SecKeychainOpen(): %d", result);
+	result = SecKeychainCopyDefault(&keychain); NSLog(@"SecKeychainOpen(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Create certificate.
 	NSData *certificateData = [NSData dataWithContentsOfFile:self.certificate];
 	CSSM_DATA data;
 	data.Data = (uint8 *)[certificateData bytes];
 	data.Length = [certificateData length];
-	result = SecCertificateCreateFromData(&data, CSSM_CERT_X_509v3, CSSM_CERT_ENCODING_BER, &certificate);// NSLog(@"SecCertificateCreateFromData(): %d", result);
+	result = SecCertificateCreateFromData(&data, CSSM_CERT_X_509v3, CSSM_CERT_ENCODING_BER, &certificate); NSLog(@"SecCertificateCreateFromData(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Create identity.
-	result = SecIdentityCreateWithCertificate(keychain, certificate, &identity);// NSLog(@"SecIdentityCreateWithCertificate(): %d", result);
+	result = SecIdentityCreateWithCertificate(keychain, certificate, &identity); NSLog(@"SecIdentityCreateWithCertificate(): %d [%s]- %@", result, (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Set client certificate.
 	CFArrayRef certificates = CFArrayCreate(NULL, (const void **)&identity, 1, NULL);
-	result = SSLSetCertificate(context, certificates);// NSLog(@"SSLSetCertificate(): %d", result);
+	result = SSLSetCertificate(context, certificates); NSLog(@"SSLSetCertificate(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 	CFRelease(certificates);
 
 	// Perform SSL handshake.
 	do {
-		result = SSLHandshake(context);// NSLog(@"SSLHandshake(): %d", result);
+		result = SSLHandshake(context); NSLog(@"SSLHandshake(): %d", result);NSLog(@"SSLHandshake(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 	} while(result == errSSLWouldBlock);
 
 }
@@ -125,7 +139,7 @@ - (void)disconnect {
 	OSStatus result;
 
 	// Close SSL session.
-	result = SSLClose(context);// NSLog(@"SSLClose(): %d", result);
+	result = SSLClose(context);// NSLog(@"SSLClose(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 	// Release identity.
 	CFRelease(identity);
@@ -140,34 +154,59 @@ - (void)disconnect {
 	close((int)socket);
 
 	// Delete SSL context.
-	result = SSLDisposeContext(context);// NSLog(@"SSLDisposeContext(): %d", result);
+	result = SSLDisposeContext(context);// NSLog(@"SSLDisposeContext(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
 
 }
 
 #pragma mark IBAction
 
 - (IBAction)push:(id)sender {
 
-	if(self.certificate == nil) {
-        NSLog(@"you need the APNS Certificate for the app to work");
-        exit(1);
+	if(! self.certificate) {
+        NSString* message = @"you need the APNS Certificate for the app to work";
+		NSLog(@"%@", message);
+        NSAlert *alert = [[[NSAlert alloc] init] autorelease];
+        [alert setMessageText:message];
+        [alert beginSheetModalForWindow:window
+                          modalDelegate:self
+                         didEndSelector:nil
+                            contextInfo:nil];
+		return;
 	}
 
 	// Validate input.
 	if(self.deviceToken == nil || self.payload == nil) {
 		return;
 	}
+    else if(![self.deviceToken rangeOfString:@" "].length)
+    {
+        //put in spaces in device token
+        NSMutableString* tempString =  [NSMutableString stringWithString:self.deviceToken];
+        int offset = 0;
+        for(int i = 0; i < tempString.length; i++)
+        {
+            if(i%8 == 0 && i != 0 && i+offset < tempString.length-1)
+            {
+                //NSLog(@"i = %d + offset[%d] = %d", i, offset, i+offset);
+                [tempString insertString:@" " atIndex:i+offset];
+                offset++;
+            }
+        }
+        NSLog(@" device token string after adding spaces = '%@'", tempString);
+        self.deviceToken = tempString;
+    }
 
 	// Convert string into device token data.
 	NSMutableData *deviceToken = [NSMutableData data];
 	unsigned value;
 	NSScanner *scanner = [NSScanner scannerWithString:self.deviceToken];
 	while(![scanner isAtEnd]) {
 		[scanner scanHexInt:&value];
+        //NSLog(@"scanned value %x", value);
 		value = htonl(value);
 		[deviceToken appendBytes:&value length:sizeof(value)];
 	}
-
+	NSLog(@"device token data %@, length = %ld", deviceToken, deviceToken.length);
 	// Create C input variables.
 	char *deviceTokenBinary = (char *)[deviceToken bytes];
 	char *payloadBinary = (char *)[self.payload UTF8String];
@@ -192,10 +231,12 @@ - (IBAction)push:(id)sender {
 	memcpy(pointer, payloadBinary, payloadLength);
 	pointer += payloadLength;
 
+	NSLog(@"pointer - message- %ld", (pointer -message));
 	// Send message over SSL.
 	size_t processed = 0;
 	OSStatus result = SSLWrite(context, &message, (pointer - message), &processed);// NSLog(@"SSLWrite(): %d %d", result, processed);
-
+	NSLog(@"SSLWrite(): [%s]- %@", (char *)GetMacOSStatusErrorString(result),[NSString stringWithUTF8String:(char *) GetMacOSStatusCommentString(result)] );
+    NSLog(@"SSLWrite(): %d %ld", result, processed);
 }
 
 @end

Classes/ioSock.c

@@ -288,7 +288,7 @@ OSStatus AcceptClientConnection(
 {  
 	struct sockaddr_in  addr;
 	int					sock;
-    int                 len;
+    socklen_t           len;
 
     len = sizeof(struct sockaddr_in);
     sock = accept((int)listenSock, (struct sockaddr *) &addr, &len);
@@ -325,12 +325,12 @@ OSStatus SocketRead(
 	 									 * RETURNED */
 	size_t 				*dataLength)	/* IN/OUT */ 
 {
-	UInt32			bytesToGo = *dataLength;
-	UInt32 			initLen = bytesToGo;
+	size_t			bytesToGo = *dataLength;
+	size_t 			initLen = bytesToGo;
 	UInt8			*currData = (UInt8 *)data;
 	int				sock = (int)connection;
 	OSStatus		rtn = noErr;
-	UInt32			bytesRead;
+	size_t			bytesRead;
 	int				rrtn;
 
 	*dataLength = 0;
@@ -403,17 +403,17 @@ OSStatus SocketWrite(
 	const void	 		*data, 
 	size_t 				*dataLength)	/* IN/OUT */ 
 {
-	UInt32		bytesSent = 0;
+	size_t		bytesSent = 0;
 	int			sock = (int)connection;
 	int 		length;
-	UInt32		dataLen = *dataLength;
+	size_t		dataLen = *dataLength;
 	const UInt8 *dataPtr = (UInt8 *)data;
 	OSStatus	ortn;
 
 	if(oneAtATime && (*dataLength > 1)) {
-		UInt32 i;
-		UInt32 outLen;
-		UInt32 thisMove;
+		size_t i;
+		size_t outLen;
+		size_t thisMove;
 
 		outLen = 0;
 		for(i=0; i<dataLen; i++) {