mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-07-01 23:46:08 +02:00
b753af6d4d
added functions to mess with the "return to" stub. everything should be working right, but if i messed up, it may cause you not to be able to exit the program (it could just keep restarting itself). now when booting homebrew, they should exit back to this program if you have a channel installed as UNEO or ULNR. priority is given to UNEO if both are present.
123 lines
2.3 KiB
C
123 lines
2.3 KiB
C
//functions for manipulating the HBC stub by giantpune
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#include <string.h>
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#include <ogcsys.h>
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#include <malloc.h>
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#include <stdio.h>
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#include "lstub.h"
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#include "stub_bin.h"
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#define TITLE_1(x) ((u8)((x) >> 8))
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#define TITLE_2(x) ((u8)((x) >> 16))
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#define TITLE_3(x) ((u8)((x) >> 24))
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#define TITLE_4(x) ((u8)((x) >> 32))
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#define TITLE_5(x) ((u8)((x) >> 40))
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#define TITLE_6(x) ((u8)((x) >> 48))
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#define TITLE_7(x) ((u8)((x) >> 56))
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#define TITLE_ID(x,y) (((u64)(x) << 32) | (y))
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s32 Set_Stub(u64 reqID)
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{
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u32 tmdsize;
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u64 tid = 0;
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u64 *list;
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u32 titlecount;
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s32 ret;
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u32 i;
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ret = ES_GetNumTitles(&titlecount);
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if(ret < 0)
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return WII_EINTERNAL;
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list = memalign(32, titlecount * sizeof(u64) + 32);
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ret = ES_GetTitles(list, titlecount);
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if(ret < 0) {
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free(list);
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return WII_EINTERNAL;
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}
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for(i=0; i<titlecount; i++) {
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if (list[i]==reqID)
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{
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tid = list[i];
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break;
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}
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}
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free(list);
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if(!tid)
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return -69;//id to stub is not installed
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if(ES_GetStoredTMDSize(tid, &tmdsize) < 0)
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return WII_EINSTALL;
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char *stub = (char *)0x800024C6;
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stub[0] = TITLE_7(reqID);
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stub[1] = TITLE_6(reqID);
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stub[8] = TITLE_5(reqID);
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stub[9] = TITLE_4(reqID);
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stub[4] = TITLE_3(reqID);
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stub[5] = TITLE_2(reqID);
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stub[12] = TITLE_1(reqID);
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stub[13] = ((u8)(reqID));
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return 1;
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}
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s32 Set_Stub_Split(u32 type, const char* reqID)
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{
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char tmp[4];
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u32 lower;
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sprintf(tmp,"%c%c%c%c",reqID[0],reqID[1],reqID[2],reqID[3]);
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memcpy(&lower, tmp, 4);
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u64 reqID64 = TITLE_ID(type, lower);
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return Set_Stub(reqID64);
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}
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void loadStub()
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{
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char *stubLoc = (char *)0x80001800;
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memcpy(stubLoc, stub_bin, stub_bin_size);
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}
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u64 getStubDest()
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{
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char * sig = (char *)0x80001804;
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if (!(
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sig[0] == 'S' &&
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sig[1] == 'T' &&
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sig[2] == 'U' &&
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sig[3] == 'B' &&
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sig[4] == 'H' &&
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sig[5] == 'A' &&
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sig[6] == 'X' &&
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sig[7] == 'X'))
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return 0;
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char *stub = (char *)0x800024C6;
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char ret[8];
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u64 retu =0;
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ret[0] = stub[0];
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ret[1] = stub[1];
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ret[2] = stub[8];
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ret[3] = stub[9];
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ret[4] = stub[4];
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ret[5] = stub[5];
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ret[6] = stub[12];
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ret[7] = stub[13];
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ret[8] = 0x00;
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memcpy(&retu, ret, 8);
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return retu;
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}
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