-fixed memory leak in download manager

-keep AHBPROT patched out on channel load
-only if no cIOS is found boot a real nand channel with a normal IOS

source/booter/external_booter.cpp

@@ -73,7 +73,7 @@ void WiiFlow_ExternalBooter(u8 vidMode, bool vipatch, bool countryString, u8 pat
 	normalCFG.wip_list = get_wip_list();
 	normalCFG.wip_count = get_wip_count();
 
-	ShutdownBeforeExit();
+	ShutdownBeforeExit(BootType == TYPE_CHANNEL);
 	/* Copy CFG into new memory region */
 	memcpy(BooterConfig, &normalCFG, sizeof(the_CFG));
 	DCFlushRange(BooterConfig, sizeof(the_CFG));
@@ -103,9 +103,9 @@ void ExternalBooter_ChannelSetup(u64 title)
 	memcpy(&normalCFG.title, &title, sizeof(u64));
 }
 
-void ShutdownBeforeExit()
+void ShutdownBeforeExit(bool KeepPatches)
 {
 	DeviceHandle.UnMountAll();
-	NandHandle.DeInit_ISFS();
+	NandHandle.DeInit_ISFS(KeepPatches);
 	WDVD_Close();
 }

source/booter/external_booter.hpp

@@ -32,6 +32,6 @@ void WiiFlow_ExternalBooter(u8 vidMode, bool vipatch, bool countryString, u8 pat
 							int aspectRatio, u32 returnTo, u8 BootType);
 void ExternalBooter_ChannelSetup(u64 title);
 void ExternalBooter_WiiGameSetup(bool wbfs, bool dvd, const char *ID);
-void ShutdownBeforeExit();
+void ShutdownBeforeExit(bool KeepPatches = false);
 
 #endif

source/channel/channel_launcher.cpp

@@ -11,6 +11,7 @@
 #include "loader/fs.h"
 #include "loader/fst.h"
 #include "loader/utils.h"
+#include "loader/sys.h"
 #include "memory/mem2.hpp"
 #include "memory/memory.h"
 #include "unzip/lz77.h"
@@ -105,7 +106,7 @@ bool Identify(u64 titleid)
 				break;
 		}
 	}
-	gprintf("Key ID: %u\n", keyId);
+	gprintf("AHBPROT: %d, Key ID: %u\n", AHBRPOT_Patched(), keyId);
 	free(tmdBuffer);
 	free(tikBuffer);
 	free(certBuffer);

source/channel/nand.cpp

@@ -1073,11 +1073,11 @@ void Nand::Init_ISFS()
 	}
 }
 
-void Nand::DeInit_ISFS()
+void Nand::DeInit_ISFS(bool KeepPatches)
 {
 	gprintf("Deinit ISFS\n");
 	ISFS_Deinitialize();
-	if(AccessPatched)
+	if(AccessPatched && !KeepPatches)
 	{
 		Disable_ISFS_Patches();
 		AccessPatched = false;

source/channel/nand.hpp

@@ -69,7 +69,7 @@ public:
 
 	void Patch_AHB();
 	void Init_ISFS();
-	void DeInit_ISFS();
+	void DeInit_ISFS(bool KeepPatches = false);
 
 	const char * Get_NandPath(void) { return NandPath; };
 	u32 Get_Partition(void) { return Partition; };

source/menu/menu_download.cpp

@@ -349,8 +349,10 @@ int CMenu::_coverDownloaderMissing(CMenu *m)
 
 static bool checkPNGBuf(u8 *data)
 {
-	PNGUPROP imgProp;
+	if(data == NULL)
+		return false;
 
+	PNGUPROP imgProp;
 	IMGCTX ctx = PNGU_SelectImageFromBuffer(data);
 	if (ctx == NULL)
 		return false;
@@ -363,18 +365,22 @@ static bool checkPNGFile(const char *filename)
 {
 	u8 *buffer = NULL;
 	FILE *file = fopen(filename, "rb");
-	if (file == NULL) return false;
+	if(file == NULL)
+		return false;
 	fseek(file, 0, SEEK_END);
-	long fileSize = ftell(file);
+	u32 fileSize = ftell(file);
 	fseek(file, 0, SEEK_SET);
-	if (fileSize > 0)
+	if(fileSize > 0)
 	{
 		buffer = (u8*)MEM2_alloc(fileSize);
 		if(buffer != NULL)
 			fread(buffer, 1, fileSize, file);
 	}
 	fclose(file);
-	return buffer == NULL ? false : checkPNGBuf(buffer);
+	bool ret = checkPNGBuf(buffer);
+	if(buffer != NULL)
+		MEM2_free(buffer);
+	return ret;
 }
 
 void CMenu::_initAsyncNetwork()

source/menu/menu_game.cpp

@@ -947,7 +947,7 @@ void CMenu::_launchHomebrew(const char *filepath, vector<string> arguments)
 int CMenu::_loadIOS(u8 gameIOS, int userIOS, string id, bool RealNAND_Channels)
 {
 	gprintf("Game ID# %s requested IOS %d.  User selected %d\n", id.c_str(), gameIOS, userIOS);
-	if(neek2o() || RealNAND_Channels)
+	if(neek2o() || (RealNAND_Channels && IOS_GetType(mainIOS) == IOS_TYPE_STUB))
 	{
 		if(!loadIOS(gameIOS, false))
 		{
@@ -1132,6 +1132,7 @@ void CMenu::_launchChannel(dir_discHdr *hdr)
 		setLanguage(language);
 		ocarina_load_code(cheatFile, cheatSize);
 		Patch_Channel_Boot(); /* Patch for everything */
+		NandHandle.Patch_AHB(); /* Identify may takes it */
 		Identify(gameTitle);
 		ExternalBooter_ChannelSetup(gameTitle);
 		WiiFlow_ExternalBooter(videoMode, vipatch, countryPatch, patchVidMode, aspectRatio, 0, TYPE_CHANNEL);