mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-07-04 00:46:10 +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.
152 lines
3.1 KiB
C
152 lines
3.1 KiB
C
#include <gccore.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 <string.h>
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#include <unistd.h>
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#include <ogc/machine/processor.h>
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#include <wiiuse/wpad.h>
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#include "../lstub.h"
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#include "fatmounter.h"
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#include "dolloader.h"
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#include "elfloader.h"
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void *innetbuffer = NULL;
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int AllocHomebrewMemory(u32 filesize) {
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innetbuffer = malloc(filesize);
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if (!innetbuffer)
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return -1;
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return 1;
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}
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void FreeHomebrewBuffer() {
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free(innetbuffer);
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innetbuffer = NULL;
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}
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void CopyHomebrewMemory(u32 read, u8 *temp, u32 len) {
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memcpy(((u8 *) innetbuffer)+read, temp, len);
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}
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int BootHomebrew(char * path) {
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loadStub();
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if (Set_Stub_Split(0x00010001,"UNEO")<0)
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Set_Stub_Split(0x00010001,"ULNR");
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void *buffer = NULL;
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u32 filesize = 0;
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entrypoint entry;
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u32 cpu_isr;
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FILE * file = fopen(path, "rb");
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if (!file) SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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fseek (file, 0, SEEK_END);
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filesize = ftell(file);
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rewind(file);
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buffer = malloc(filesize);
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if (fread (buffer, 1, filesize, file) != filesize) {
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fclose (file);
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free(buffer);
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SDCard_deInit();
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USBDevice_deInit();
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SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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}
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fclose (file);
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struct __argv args;
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bzero(&args, sizeof(args));
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args.argvMagic = ARGV_MAGIC;
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args.length = strlen(path) + 2;
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args.commandLine = (char*)malloc(args.length);
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if (!args.commandLine) SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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strcpy(args.commandLine, path);
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args.commandLine[args.length - 1] = '\0';
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args.argc = 1;
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args.argv = &args.commandLine;
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args.endARGV = args.argv + 1;
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int ret = valid_elf_image(buffer);
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if (ret == 1)
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entry = (entrypoint) load_elf_image(buffer);
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else
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entry = (entrypoint) load_dol(buffer, &args);
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free(buffer);
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if (!entry) {
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SDCard_deInit();
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USBDevice_deInit();
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SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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}
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SDCard_deInit();
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USBDevice_deInit();
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WPAD_Flush(0);
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WPAD_Disconnect(0);
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WPAD_Shutdown();
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SYS_ResetSystem(SYS_SHUTDOWN, 0, 0);
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_CPU_ISR_Disable (cpu_isr);
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__exception_closeall();
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entry();
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_CPU_ISR_Restore (cpu_isr);
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return 0;
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}
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int BootHomebrewFromMem() {
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loadStub();
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if (Set_Stub_Split(0x00010001,"UNEO")<0)
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Set_Stub_Split(0x00010001,"ULNR");
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entrypoint entry;
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u32 cpu_isr;
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if (!innetbuffer) {
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SDCard_deInit();
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USBDevice_deInit();
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SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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}
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struct __argv args;
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int ret = valid_elf_image(innetbuffer);
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if (ret == 1)
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entry = (entrypoint) load_elf_image(innetbuffer);
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else
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entry = (entrypoint) load_dol(innetbuffer, &args);
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free(innetbuffer);
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if (!entry) {
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SDCard_deInit();
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USBDevice_deInit();
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SYS_ResetSystem(SYS_RETURNTOMENU, 0, 0);
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}
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SDCard_deInit();
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USBDevice_deInit();
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WPAD_Flush(0);
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WPAD_Disconnect(0);
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WPAD_Shutdown();
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SYS_ResetSystem(SYS_SHUTDOWN, 0, 0);
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_CPU_ISR_Disable (cpu_isr);
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__exception_closeall();
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entry();
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_CPU_ISR_Restore (cpu_isr);
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return 0;
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}
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