Hacking Post your WiiU cheat codes here!

[HackingNewbie]

Yeah, I have a github. https://github.com/HackingNewbie

 

[BullyWiiPlaza]

@HackingNewbie:
I will do the PC part with gctu writing

 

[HackingNewbie]

OK I've already forked your tcpgecko, gonna start working on it now

--------------------- MERGED ---------------------------

So you know to convert codes to ascii and then put it into the .gctu file? With no newlines, spaces or anything? I'm guessing spaces and newlines aren't written to 0x10015000, because that would be a waste of RAM?

 

[BullyWiiPlaza]

OK I've already forked your tcpgecko, gonna start working on it now

--------------------- MERGED ---------------------------

So you know to convert codes to ascii and then put it into the .gctu file? With no newlines, spaces or anything? I'm guessing spaces and newlines aren't written to 0x10015000, because that would be a waste of RAM?

Only the codes are written, nothing else. It would confuse the code handler.

 

[HackingNewbie]

So if you put "D0000000 DEADCAFE" into your program, it will convert it to "Ð...Þ.Êþ" then put that into the .gctu file? Then when my code writes it to 0x10015000 "D0000000DEADCAFE" will appear in memory.

 

[BullyWiiPlaza]

So if you put "D0000000 DEADCAFE" into your program, it will convert it to "Ð...Þ.Êþ" then put that into the .gctu file? Then when my code writes it to 0x10015000 "D0000000DEADCAFE" will appear in memory.

 

[HackingNewbie]

Wait, what game is that? Doesn't OSGetTitleID() return values without dashes?

 

[BullyWiiPlaza]

Wait, what game is that? Doesn't OSGetTitleID() return values without dashes?

Yeah, also this is the Wii U menu. Let's do it without the dash then.

 

[HackingNewbie]

Yeah. Then I can go like:

#include <inttypes.h>
#include <string.h>
...
uint64_t titleIDNum = OSGetTitleID();
char titleID[17];
sprintf(titleID, "%" PRIu64, titleIDNum);
char fileName[24];
strncat(fileName, titleID, 16);
strncat(fileName, ".gctu", 5);

This puts the target filename in the char array fileName.

 

[HackingNewbie]

@BullyWiiPlaza would that work?

 

[HackingNewbie]

Nvm, tested and worked

 

[BullyWiiPlaza]

Nvm, tested and worked

Write the full code and you helped with it. The GCTU generation is fully done.

 

[HackingNewbie]

Nice had to mess around with the array sizes to finally get it to work; if the two char arrays are any other sizes, the target filename will be gibberish.

 

[HackingNewbie]

OK guys, I finished the tcpgecko installer code! I have sent a pull request.

 

[BullyWiiPlaza]

OK guys, I finished the tcpgecko installer code! I have sent a pull request.

You didn't even test because it's clearly wrong in many ways. The code list address is different and you didn't use the right function for loading from the SD card...

 

[HackingNewbie]

The cheat table doesn't begin at 0x10015000?

 

[BullyWiiPlaza]

The cheat table doesn't begin at 0x10015000?

Nope, RIP. More luck next time buddy. Still thanks for trying. It wasn't too bad. I implemented the code now but it's untested.

#define EXTENSION_SIZE 6
#define SD_FILE_PATH_HEADER_LENGTH 10
#define TITLE_ID_LEADING_ZEROS 3
#define TITLE_ID_LENGTH 16
#define CODES_FILE_PATH_SIZE (SD_FILE_PATH_HEADER_LENGTH + TITLE_ID_LENGTH + EXTENSION_SIZE)

void applyCheatCodes() {
   unsigned char filePath[CODES_FILE_PATH_SIZE];
   memset(filePath, '0', sizeof(filePath));
   memcpy(filePath, "sd:/codes/", SD_FILE_PATH_HEADER_LENGTH); // File path header
   u64 titleID = OSGetTitleID();
   char asciiTitleID[TITLE_ID_LENGTH];
   snprintf(asciiTitleID, TITLE_ID_LENGTH, "%llX", titleID);
   memcpy(filePath + SD_FILE_PATH_HEADER_LENGTH + TITLE_ID_LEADING_ZEROS, asciiTitleID, TITLE_ID_LENGTH); // Title ID
   memcpy(filePath + SD_FILE_PATH_HEADER_LENGTH + TITLE_ID_LENGTH, ".gctu", EXTENSION_SIZE); // Extension
   filePath[CODES_FILE_PATH_SIZE - 1] = '\0'; // Null-terminated

   unsigned char *codes = NULL;
   unsigned int codesSize = 0;
   int result = LoadFileToMem((const char *) filePath, &codes, &codesSize);

   if (result < 0) {
      // Error, we won't write any codes
      return;
   }

   kernelCopyData((unsigned char *) 0x01133000, codes, codesSize);
}

It probably works but I'll test it tomorrow.

 

[HackingNewbie]

Bit embarrasing, I've got to say. Well, thanks for the encouragement, probably not even old enough to understand computing like you.

 

[cearp]

Bit embarrasing, I've got to say. Well, thanks for the encouragement, probably not even old enough to understand computing like you.

yes you are young, but that doesn't mean you don't have to be so good, if you keep trying from where you are now, you will be fantastic when you are 18!
it's not about age, just experience. so don't be disheartened!
even if some/all of your code works, if it's not in a way the maintainer of the project likes, your pull request can still get denied.
if you didn't get there first and if i had a go, maybe my code wouldn't have been good enough too

@BullyWiiPlaza i'm curious why you are using memcpy/c char arrays, when the project is in c++ and you could use std::string which is more readable and easier to use?
is it something about performance? some preference? not a criticism at all, i want to know so I can learn a little

thanks for the work on this, did not one else request/mention it until i asked a few days ago?
it's much more convenient now, yeah 99% of people have a computer to run jgecko with the wiiu - but having everything on the console is much neater. i appreciate it

 

[BullyWiiPlaza]

@BullyWiiPlaza i'm curious why you are using memcpy/c char arrays, when the project is in c++ and you could use std::string which is more readable and easier to use?
is it something about performance? some preference? not a criticism at all, i want to know so I can learn a little

I'm just more familiar with C. That's the only reason since performance doesn't even matter.

EDIT: It doesn't work, yet. :/

I'm getting the following error when I try to mount the SD card with FSGetMountSource():

#define FS_STATUS_END                   (FS_STATUS_ERROR_BASE-2)    /* Indicates end of file / directory entry */

FS_STATUS_END There are no more available mount sources.

This is why programming the Wii U is garbage. Stuff like that happens way too often. I hope someone finds a solution. I pushed the almost working code.