usbloadergx/source/patches/patchcode.c
strtoul 54fc7320f9 *added new feature to force aspec ratio on games/channels (global and per game setting) (thx giantpune for help with disassemble)
*added refresh of partition size when activating wii games mode from none wii games mode
*fixed playback of some BNS banner sounds
*moved every allocation used during or after apploader to mem2 (fixes some memory overwrites problems by the apploader)
*improved detection of game partition when starting the loader without configs (fresh start)
*fixed remove of unused cached titles on wiitdb load
2011-12-23 15:48:20 +00:00

857 lines
22 KiB
C

/*
* Copyright (C) 2008 Nuke (wiinuke@gmail.com)
*
* this file is part of GeckoOS for USB Gecko
* http://www.usbgecko.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gccore.h>
#include <sys/unistd.h>
#include "codehandler.h"
#include "codehandleronly.h"
#include "codehandlerslota.h"
#include "multidol.h"
#include "defaultgameconfig.h"
#include "usbloader/apploader.h"
#include "patchcode.h"
#include "settings/SettingsEnums.h"
#include "FileOperations/fileops.h"
#include "memory/mem2.h"
#include "memory/memory.h"
#include "gecko.h"
static u8 *codelistend = (u8 *) 0x80003000;
static u8 *codelist = (u8 *) 0x800022A8;
static u8 *code_buf = NULL;
static int code_size = 0;
static u32 gameconfsize = 0;
static u32 *gameconf = NULL;
static u32 tempgameconfsize = 0;
static u8 *tempgameconf = NULL;
extern void patchhook(u32 address, u32 len);
extern void multidolhook(u32 address);
extern void langvipatch(u32 address, u32 len, u8 langbyte);
extern void vipatch(u32 address, u32 len);
static const u32 multidolpatch1[2] = {
0x3C03FFB4,0x28004F43
};
static const u32 healthcheckhook[2] = {
0x41810010,0x881D007D
};
static const u32 updatecheckhook[3] = {
0x80650050,0x80850054,0xA0A50058
};
static const u32 multidolpatch2[2] = {
0x3F608000, 0x807B0018
};
static const u32 recoveryhooks[3] = {
0xA00100AC,0x5400073E,0x2C00000F
};
static const u32 nocopyflag1[3] = {
0x540007FF, 0x4182001C, 0x80630068
};
static const u32 nocopyflag2[3] = {
0x540007FF, 0x41820024, 0x387E12E2
};
// this one is for the GH3 and VC saves
//static const u32 nocopyflag3[5] = {
// 0x2C030000, 0x40820010, 0x88010020, 0x28000002, 0x41820234
//};
static const u32 nocopyflag3[5] = {
0x2C030000, 0x41820200,0x48000058,0x38610100
};
// this removes the display warning for no copy VC and GH3 saves
static const u32 nocopyflag4[4] = {
0x80010008, 0x2C000000, 0x4182000C, 0x3BE00001
};
static const u32 nocopyflag5[3] = {
0x801D0024,0x540007FF,0x41820024
};
static const u32 movedvdpatch[3] = {
0x2C040000, 0x41820120, 0x3C608109
};
static const u32 regionfreehooks[5] = {
0x7C600774, 0x2C000001, 0x41820030,0x40800010,0x2C000000
};
static const u32 cIOScode[16] = {
0x7f06c378, 0x7f25cb78, 0x387e02c0, 0x4cc63182
};
static const u32 cIOSblock[16] = {
0x2C1800F9, 0x40820008, 0x3B000024
};
static const u32 fwritepatch[8] = {
0x9421FFD0,0x7C0802A6,0x90010034,0xBF210014,0x7C9B2378,0x7CDC3378,0x7C7A1B78,0x7CB92B78 // bushing fwrite
};
static const u32 vipatchcode[3] = {
0x4182000C,0x4180001C,0x48000018
};
static const u32 viwiihooks[4] = {
0x7CE33B78,0x38870034,0x38A70038,0x38C7004C
};
static const u32 kpadhooks[4] = {
0x9A3F005E,0x38AE0080,0x389FFFFC,0x7E0903A6
};
static const u32 kpadoldhooks[6] = {
0x801D0060, 0x901E0060, 0x801D0064, 0x901E0064, 0x801D0068, 0x901E0068
};
static const u32 joypadhooks[4] = {
0x3AB50001, 0x3A73000C, 0x2C150004, 0x3B18000C
};
static const u32 gxdrawhooks[4] = {
0x3CA0CC01, 0x38000061, 0x3C804500, 0x98058000
};
static const u32 gxflushhooks[4] = {
0x90010014, 0x800305FC, 0x2C000000, 0x41820008
};
static const u32 ossleepthreadhooks[4] = {
0x90A402E0, 0x806502E4, 0x908502E4, 0x2C030000
};
static const u32 axnextframehooks[4] = {
0x3800000E, 0x7FE3FB78, 0xB0050000, 0x38800080
};
static const u32 wpadbuttonsdownhooks[4] = {
0x7D6B4A14, 0x816B0010, 0x7D635B78, 0x4E800020
};
static const u32 wpadbuttonsdown2hooks[4] = {
0x7D6B4A14, 0x800B0010, 0x7C030378, 0x4E800020
};
static const u32 multidolhooks[4] = {
0x7C0004AC, 0x4C00012C, 0x7FE903A6, 0x4E800420
};
static const u32 multidolchanhooks[4] = {
0x4200FFF4, 0x48000004, 0x38800000, 0x4E800020
};
static const u32 langpatch[3] = {
0x7C600775, 0x40820010, 0x38000000
};
static const u32 oldpatch002[3] = {
0x2C000000, 0x40820214, 0x3C608000
};
static const u32 newpatch002[3] = {
0x2C000000, 0x48000214, 0x3C608000
};
static const u32 dczeropatch[4] = {
0x7C001FEC, 0x38630020, 0x4200FFF8, 0x4E800020
};
//---------------------------------------------------------------------------------
void dogamehooks(u32 hooktype, void *addr, u32 len)
//---------------------------------------------------------------------------------
{
if(hooktype == 0x00)
return;
void *addr_start = addr;
void *addr_end = addr+len;
while(addr_start < addr_end)
{
switch(hooktype)
{
default:
case 0x00:
break;
case 0x01:
if(memcmp(addr_start, viwiihooks, sizeof(viwiihooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x02:
if(memcmp(addr_start, kpadhooks, sizeof(kpadhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, kpadoldhooks, sizeof(kpadoldhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x03:
if(memcmp(addr_start, joypadhooks, sizeof(joypadhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x04:
if(memcmp(addr_start, gxdrawhooks, sizeof(gxdrawhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x05:
if(memcmp(addr_start, gxflushhooks, sizeof(gxflushhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x06:
if(memcmp(addr_start, ossleepthreadhooks, sizeof(ossleepthreadhooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
case 0x07:
if(memcmp(addr_start, axnextframehooks, sizeof(axnextframehooks))==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
/*
case 0x08:
if(memcmp(addr_start, customhook, customhooksize)==0){
patchhook((u32)addr_start, len);
}
if(memcmp(addr_start, multidolhooks, sizeof(multidolhooks))==0){
multidolhook((u32)addr_start+sizeof(multidolhooks)-4);
}
break;
*/
}
addr_start += 4;
}
}
//---------------------------------------------------------------------------------
void app_pokevalues()
//---------------------------------------------------------------------------------
{
u32 i, *codeaddr, *codeaddr2, *addrfound = NULL;
if (gameconfsize != 0)
{
for (i = 0; i < gameconfsize / 4; i++)
{
if (*(gameconf + i) == 0)
{
if (((u32 *) (*(gameconf + i + 1))) == NULL || *((u32 *) (*(gameconf + i + 1))) == *(gameconf + i + 2))
{
*((u32 *) (*(gameconf + i + 3))) = *(gameconf + i + 4);
DCFlushRange((void *) *(gameconf + i + 3), 4);
}
i += 4;
}
else
{
codeaddr = (u32 *) *(gameconf + i + *(gameconf + i) + 1);
codeaddr2 = (u32 *) *(gameconf + i + *(gameconf + i) + 2);
if (codeaddr == 0 && addrfound != NULL)
codeaddr = addrfound;
else if (codeaddr == 0 && codeaddr2 != 0)
codeaddr = (u32 *) ((((u32) codeaddr2) >> 28) << 28);
else if (codeaddr == 0 && codeaddr2 == 0)
{
i += *(gameconf + i) + 4;
continue;
}
if (codeaddr2 == 0) codeaddr2 = codeaddr + *(gameconf + i);
addrfound = NULL;
while (codeaddr <= (codeaddr2 - *(gameconf + i)))
{
if (memcmp(codeaddr, gameconf + i + 1, (*(gameconf + i)) * 4) == 0)
{
*(codeaddr + ((*(gameconf + i + *(gameconf + i) + 3)) / 4)) = *(gameconf + i + *(gameconf + i)
+ 4);
if (addrfound == NULL) addrfound = codeaddr;
}
codeaddr++;
}
i += *(gameconf + i) + 4;
}
}
}
}
//---------------------------------------------------------------------------------
static void app_loadgameconfig()
//---------------------------------------------------------------------------------
{
if (gameconf == NULL)
{
gameconf = (u32*) MEM2_alloc(65536);
if (gameconf == NULL)
return;
}
const char *discid = (const char *) Disc_ID;
if(!tempgameconf)
{
tempgameconf = (u8 *) defaultgameconfig;
tempgameconfsize = defaultgameconfig_size;
}
u32 ret;
s32 gameidmatch, maxgameidmatch = -1, maxgameidmatch2 = -1;
u32 i, numnonascii, parsebufpos;
u32 codeaddr, codeval, codeaddr2, codeval2, codeoffset;
u32 temp, tempoffset = 0;
char parsebuffer[18];
// Remove non-ASCII characters
numnonascii = 0;
for (i = 0; i < tempgameconfsize; i++)
{
if (tempgameconf[i] < 9 || tempgameconf[i] > 126)
numnonascii++;
else
tempgameconf[i - numnonascii] = tempgameconf[i];
}
tempgameconfsize -= numnonascii;
*(tempgameconf + tempgameconfsize) = 0;
//gameconf = (tempgameconf + tempgameconfsize) + (4 - (((u32) (tempgameconf + tempgameconfsize)) % 4));
for (maxgameidmatch = 0; maxgameidmatch <= 6; maxgameidmatch++)
{
i = 0;
while (i < tempgameconfsize)
{
maxgameidmatch2 = -1;
while (maxgameidmatch != maxgameidmatch2)
{
while (i != tempgameconfsize && tempgameconf[i] != ':')
i++;
if (i == tempgameconfsize) break;
while ((tempgameconf[i] != 10 && tempgameconf[i] != 13) && (i != 0))
i--;
if (i != 0) i++;
parsebufpos = 0;
gameidmatch = 0;
while (tempgameconf[i] != ':')
{
if (tempgameconf[i] == '?')
{
parsebuffer[parsebufpos] = discid[parsebufpos];
parsebufpos++;
gameidmatch--;
i++;
}
else if (tempgameconf[i] != 0 && tempgameconf[i] != ' ')
parsebuffer[parsebufpos++] = tempgameconf[i++];
else if (tempgameconf[i] == ' ')
break;
else i++;
if (parsebufpos == 8) break;
}
parsebuffer[parsebufpos] = 0;
if (strncasecmp("DEFAULT", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 7)
{
gameidmatch = 0;
goto idmatch;
}
if (strncasecmp(discid, parsebuffer, strlen(parsebuffer)) == 0)
{
gameidmatch += strlen(parsebuffer);
idmatch: if (gameidmatch > maxgameidmatch2)
{
maxgameidmatch2 = gameidmatch;
}
}
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
i++;
}
while (i != tempgameconfsize && tempgameconf[i] != ':')
{
parsebufpos = 0;
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
{
if (tempgameconf[i] != 0 && tempgameconf[i] != ' ' && tempgameconf[i] != '(' && tempgameconf[i]
!= ':')
parsebuffer[parsebufpos++] = tempgameconf[i++];
else if (tempgameconf[i] == ' ' || tempgameconf[i] == '(' || tempgameconf[i] == ':')
break;
else i++;
if (parsebufpos == 17) break;
}
parsebuffer[parsebufpos] = 0;
//if (!autobootcheck)
{
if (strncasecmp("codeliststart", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer)
== 13)
{
sscanf((char *) (tempgameconf + i), " = %x", (unsigned int *) &codelist);
}
if (strncasecmp("codelistend", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 11)
{
sscanf((char *) (tempgameconf + i), " = %x", (unsigned int *) &codelistend);
}
if (strncasecmp("poke", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 4)
{
ret = sscanf((char *) tempgameconf + i, "( %x , %x", &codeaddr, &codeval);
if (ret == 2)
{
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 8;
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
DCFlushRange((void *) (gameconf + (gameconfsize / 4) - 5), 20);
}
}
if (strncasecmp("pokeifequal", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer) == 11)
{
ret = sscanf((char *) (tempgameconf + i), "( %x , %x , %x , %x", &codeaddr, &codeval,
&codeaddr2, &codeval2);
if (ret == 4)
{
*(gameconf + (gameconfsize / 4)) = 0;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr2;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval2;
gameconfsize += 4;
DCFlushRange((void *) (gameconf + (gameconfsize / 4) - 5), 20);
}
}
if (strncasecmp("searchandpoke", parsebuffer, strlen(parsebuffer)) == 0 && strlen(parsebuffer)
== 13)
{
ret = sscanf((char *) (tempgameconf + i), "( %x%n", &codeval, &tempoffset);
if (ret == 1)
{
gameconfsize += 4;
temp = 0;
while (ret == 1)
{
*(gameconf + (gameconfsize / 4)) = codeval;
gameconfsize += 4;
temp++;
i += tempoffset;
ret = sscanf((char *) (tempgameconf + i), " %x%n", &codeval, &tempoffset);
}
*(gameconf + (gameconfsize / 4) - temp - 1) = temp;
ret = sscanf((char *) (tempgameconf + i), " , %x , %x , %x , %x", &codeaddr, &codeaddr2,
&codeoffset, &codeval2);
if (ret == 4)
{
*(gameconf + (gameconfsize / 4)) = codeaddr;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeaddr2;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeoffset;
gameconfsize += 4;
*(gameconf + (gameconfsize / 4)) = codeval2;
gameconfsize += 4;
DCFlushRange((void *) (gameconf + (gameconfsize / 4) - temp - 5), temp * 4 + 20);
}
else gameconfsize -= temp * 4 + 4;
}
}
}
if (tempgameconf[i] != ':')
{
while ((i != tempgameconfsize) && (tempgameconf[i] != 10 && tempgameconf[i] != 13))
i++;
if (i != tempgameconfsize) i++;
}
}
if (i != tempgameconfsize) while ((tempgameconf[i] != 10 && tempgameconf[i] != 13) && (i != 0))
i--;
}
}
if(tempgameconf != defaultgameconfig)
free(tempgameconf);
}
//---------------------------------------------------------------------------------
void load_handler(u32 hooktype, u32 debugger, u32 pauseAtStart)
//---------------------------------------------------------------------------------
{
if (hooktype != 0x00)
{
if (debugger == 0x01)
codelist = (u8 *) 0x800028B8;
codelistend = (u8 *) 0x80003000;
app_loadgameconfig();
if (debugger == 0x01)
{
//! Prefer Slot B
if(usb_isgeckoalive(EXI_CHANNEL_1))
{
// slot B
memset((void*)0x80001800,0,codehandler_size);
memcpy((void*)0x80001800,codehandler,codehandler_size);
if (pauseAtStart == 0x01)
*(u32*)0x80002774 = 1;
memcpy((void*)0x80001CDE, &codelist, 2);
memcpy((void*)0x80001CE2, ((u8*) &codelist) + 2, 2);
memcpy((void*)0x80001F5A, &codelist, 2);
memcpy((void*)0x80001F5E, ((u8*) &codelist) + 2, 2);
DCFlushRange((void*)0x80001800,codehandler_size);
}
else
{
// Slot A
memset((void*)0x80001800,0,codehandlerslota_size);
memcpy((void*)0x80001800,codehandlerslota,codehandlerslota_size);
if (pauseAtStart == 0x01)
*(u32*)0x80002774 = 1;
memcpy((void*)0x80001CDE, &codelist, 2);
memcpy((void*)0x80001CE2, ((u8*) &codelist) + 2, 2);
memcpy((void*)0x80001F5A, &codelist, 2);
memcpy((void*)0x80001F5E, ((u8*) &codelist) + 2, 2);
DCFlushRange((void*)0x80001800,codehandlerslota_size);
}
}
else
{
memset((void*)0x80001800,0,codehandleronly_size);
memcpy((void*)0x80001800,codehandleronly,codehandleronly_size);
memcpy((void*)0x80001906, &codelist, 2);
memcpy((void*)0x8000190A, ((u8*) &codelist) + 2, 2);
DCFlushRange((void*)0x80001800,codehandleronly_size);
}
// Load multidol handler
memset((void*)0x80001000,0,multidol_size);
memcpy((void*)0x80001000,multidol,multidol_size);
DCFlushRange((void*)0x80001000,multidol_size);
switch(hooktype)
{
default:
break;
case 0x01:
memcpy((void*)0x8000119C,viwiihooks,12);
memcpy((void*)0x80001198,viwiihooks+3,4);
break;
case 0x02:
memcpy((void*)0x8000119C,kpadhooks,12);
memcpy((void*)0x80001198,kpadhooks+3,4);
break;
case 0x03:
memcpy((void*)0x8000119C,joypadhooks,12);
memcpy((void*)0x80001198,joypadhooks+3,4);
break;
case 0x04:
memcpy((void*)0x8000119C,gxdrawhooks,12);
memcpy((void*)0x80001198,gxdrawhooks+3,4);
break;
case 0x05:
memcpy((void*)0x8000119C,gxflushhooks,12);
memcpy((void*)0x80001198,gxflushhooks+3,4);
break;
case 0x06:
memcpy((void*)0x8000119C,ossleepthreadhooks,12);
memcpy((void*)0x80001198,ossleepthreadhooks+3,4);
break;
case 0x07:
memcpy((void*)0x8000119C,axnextframehooks,12);
memcpy((void*)0x80001198,axnextframehooks+3,4);
break;
/*
case 0x08:
if (customhooksize == 16)
{
memcpy((void*)0x8000119C,customhook,12);
memcpy((void*)0x80001198,customhook+3,4);
}
break;
*/
case 0x09:
memcpy((void*)0x8000119C,wpadbuttonsdownhooks,12);
memcpy((void*)0x80001198,wpadbuttonsdownhooks+3,4);
break;
case 0x0A:
memcpy((void*)0x8000119C,wpadbuttonsdown2hooks,12);
memcpy((void*)0x80001198,wpadbuttonsdown2hooks+3,4);
break;
}
DCFlushRange((void*)0x80001198,16);
memcpy((void *) 0x80001800, (void*) Disc_ID, 6); // For Wiird
DCFlushRange((void *) 0x80001800, 6);
}
//Copy the codes
if (code_buf && code_size > 0)
{
memset(codelist, 0, (u32) codelistend - (u32) codelist);
memcpy(codelist, code_buf, code_size);
DCFlushRange(codelist, (u32) codelistend - (u32) codelist);
free(code_buf);
code_buf = NULL;
}
if(hooktype != 0x00)
{
//This needs to be done after loading the .dol into memory
app_pokevalues();
}
}
static int LoadGameConfig(const char *CheatFilepath)
{
int filesize = 0;
tempgameconf = (u8 *) defaultgameconfig;
tempgameconfsize = defaultgameconfig_size;
gameconfsize = 0;
FILE* fp;
char filepath[200];
snprintf(filepath, sizeof(filepath), "%s/gameconfig.txt", CheatFilepath);
fp = fopen(filepath, "rb");
if (!fp)
{
snprintf(filepath, sizeof(filepath), "sd:/gameconfig.txt");
fp = fopen(filepath, "rb");
int i;
for(i = 1; i <= 8; ++i)
{
if(fp) break;
snprintf(filepath, sizeof(filepath), "usb%i:/gameconfig.txt", i);
fp = fopen(filepath, "rb");
}
}
if (!fp)
return 0;
fseek(fp, 0, SEEK_END);
filesize = ftell(fp);
fseek(fp, 0, SEEK_SET);
tempgameconf = (u8*) MEM2_alloc(filesize);
if (tempgameconf == NULL) {
tempgameconf = (u8 *) defaultgameconfig;
fclose(fp);
return -1;
}
int ret = fread((void*) tempgameconf, 1, filesize, fp);
fclose(fp);
if (ret != filesize)
{
MEM2_free(tempgameconf);
tempgameconf = (u8 *) defaultgameconfig;
return -1;
}
tempgameconfsize = filesize;
return 0;
}
int ocarina_load_code(const char *CheatFilepath, u8 *gameid)
{
char filepath[150];
char id[7];
memset(id, 0, sizeof(id));
memcpy(id, gameid, 6);
snprintf(filepath, sizeof(filepath), "%s%s.gct", CheatFilepath, id);
gprintf("Ocarina: Searching codes...%s\n", filepath);
FILE * fp = fopen(filepath, "rb");
if (!fp)
{
gprintf("Ocarina: No codes found");
printf("\n");
return 0;
}
fseek(fp, 0, SEEK_END);
u32 filesize = ftell(fp);
rewind(fp);
code_buf = (u8*) MEM2_alloc(filesize);
if (!code_buf)
{
gprintf("Ocarina: Not enough memory\n");
fclose(fp);
return 0;
}
code_size = fread(code_buf, 1, filesize, fp);
fclose(fp);
if (code_size <= 0)
{
gprintf("Ocarina: could not read file.\n");
MEM2_free(code_buf);
code_buf = NULL;
code_size = 0;
return 0;
}
if (code_size > (s32) codelistend - (s32) codelist)
{
gprintf("Ocarina: Too many codes found\n");
MEM2_free(code_buf);
code_buf = NULL;
code_size = 0;
return 0;
}
gprintf("Ocarina: Codes found.\n");
LoadGameConfig(CheatFilepath);
return code_size;
}
void langpatcher(void *addr, u32 len, u8 languageChoice)
{
u8 ocarinaLangPatchByte = 1;
switch (languageChoice)
{
case JAPANESE:
ocarinaLangPatchByte = 0x00;
break;
case ENGLISH:
ocarinaLangPatchByte = 0x01;
break;
case GERMAN:
ocarinaLangPatchByte = 0x02;
break;
case FRENCH:
ocarinaLangPatchByte = 0x03;
break;
case SPANISH:
ocarinaLangPatchByte = 0x04;
break;
case ITALIAN:
ocarinaLangPatchByte = 0x05;
break;
case DUTCH:
ocarinaLangPatchByte = 0x06;
break;
case S_CHINESE:
ocarinaLangPatchByte = 0x07;
break;
case T_CHINESE:
ocarinaLangPatchByte = 0x08;
break;
case KOREAN:
ocarinaLangPatchByte = 0x09;
break;
default:
return;
}
u8 * addr_start = addr;
u8 * addr_end = addr + len;
while (addr_start < addr_end)
{
if (memcmp(addr_start, langpatch, sizeof(langpatch)) == 0)
{
langvipatch((u32) addr_start, len, ocarinaLangPatchByte);
}
addr_start += 4;
}
}
void vidolpatcher(void *addr, u32 len)
{
void *addr_start = addr;
void *addr_end = addr + len;
while (addr_start < addr_end)
{
if (memcmp(addr_start, vipatchcode, sizeof(vipatchcode)) == 0)
{
vipatch((u32) addr_start, len);
}
addr_start += 4;
}
}