int patch_options(void *address, uint32_t size, uint8_t options, enum types type)
{
if (options & patch_option_keyx) {
print("Patch option: Adding keyX");
if (read_file(fcram_temp, PATH_SLOT0X25KEYX, AES_BLOCK_SIZE) != 0) {
print("Failed to load keyX");
draw_message("Failed to load keyX", "Make sure the keyX is\n located at /slot0x25keyX.bin");
return 1;
}
void *pos = memsearch(address, "slot0x25keyXhere", size, AES_BLOCK_SIZE);
if (pos) {
memcpy32(pos, fcram_temp, AES_BLOCK_SIZE);
} else {
print("I don't know where to add keyX.\n Ignoring...");
}
}
if (options & patch_option_emunand) {
print("Patch option: Setting emuNAND offsets");
uint32_t offset = 0;
uint32_t header = 0;
if (get_emunand_offsets(config->emunand_location, &offset, &header)) {
print("Failed to get the emuNAND offsets");
draw_message("Failed to get the emuNAND offsets",
"There's 3 possible causes for this error:\n"
" - You don't even have an emuNAND installed\n"
" - Your SD card can't be read\n"
" - You're using an unsupported emuNAND format");
return 1;
}
uint32_t *pos_offset = memsearch(address, "NAND", size, 4);
uint32_t *pos_header = memsearch(address, "NCSD", size, 4);
if (pos_offset && pos_header) {
*pos_offset = offset;
*pos_header = header;
} else {
print("I don't know where to set the offsets.\n"
" Ignoring...");
}
}
if (options & patch_option_save && type == NATIVE_FIRM) {
print("Patch option: Save firm");
save_firm = 1;
// This absolutely requires the -fshort-wchar option to be enabled.
char *offset = address + size;
memcpy(offset, L"sdmc:", 10);
memcpy(offset + 10, L"" PATH_PATCHED_FIRMWARE, sizeof(PATH_PATCHED_FIRMWARE) * 2);
}
return 0;
}
void menu_emunand()
{
char emunands[MAX_OPTIONS][0x20]; // We have a max size for the strings...
char unnamed[] = "emuNAND #";
uint32_t gap;
if (getMMCDevice(0)->total_size > 0x200000) {
gap = 0x400000;
} else {
gap = 0x200000;
}
// Scan for available emuNANDS. Assume they're placed right behind eachother.
int count;
for (count = 0; count <= MAX_OPTIONS; count++) {
if (get_emunand_offsets(count * gap, NULL, NULL) == 0) {
if (sdmmc_sdcard_readsectors(count * gap, 1, fcram_temp) == 0 &&
memcmp(fcram_temp + 11, "NAME", 4) == 0) {
memcpy(emunands[count], fcram_temp + 15, 0x1F);
emunands[count][0x1F] = 0;
} else {
memcpy(emunands[count], unnamed, sizeof(unnamed));
emunands[count][sizeof(unnamed) - 1] = '1' + count;
emunands[count][sizeof(unnamed)] = 0;
}
continue;
}
break;
}
if (count <= 0) {
print("Failed to find any emuNAND");
draw_message("Failed to find any emuNAND",
"There's 3 possible causes for this error:\n"
" - You don't even have an emuNAND installed\n"
" - Your SD card can't be read\n"
" - You're using an unsupported emuNAND format");
return;
}
// Make the pointer array
char *options[count];
for (int x = 0; x <= count; x++) options[x] = emunands[x];
int result = draw_menu("Select emuNAND", 1, count, options);
if (result == -1) return;
config->emunand_location = result * gap;
patches_modified = 1;
}
