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properly make the DSi NAND instance-unique

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This commit is contained in:
Arisotura
2022-09-23 22:53:23 +02:00
parent fc11258071
commit 86786738cc
6 changed files with 80 additions and 44 deletions
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49
src/DSi_NAND.cpp
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@ -49,8 +49,48 @@ UINT FF_ReadNAND(BYTE* buf, LBA_t sector, UINT num);
UINT FF_WriteNAND(BYTE* buf, LBA_t sector, UINT num);
bool Init(FILE* nandfile, u8* es_keyY)
bool Init(u8* es_keyY)
{
CurFile = nullptr;
std::string nandpath = Platform::GetConfigString(Platform::DSi_NANDPath);
std::string instnand = nandpath + Platform::InstanceFileSuffix();
FILE* nandfile = Platform::OpenLocalFile(instnand, "r+b");
if ((!nandfile) && (Platform::InstanceID() > 0))
{
FILE* orig = Platform::OpenLocalFile(nandpath, "rb");
if (!orig)
{
printf("Failed to open DSi NAND\n");
return false;
}
fseek(orig, 0, SEEK_END);
long len = ftell(orig);
fseek(orig, 0, SEEK_SET);
nandfile = Platform::OpenLocalFile(instnand, "w+b");
if (nandfile)
{
u8* tmpbuf = new u8[0x10000];
for (long i = 0; i < len; i+=0x10000)
{
long blklen = 0x10000;
if ((i+blklen) > len) blklen = len-i;
fread(tmpbuf, blklen, 1, orig);
fwrite(tmpbuf, blklen, 1, nandfile);
}
delete[] tmpbuf;
}
fclose(orig);
fclose(nandfile);
nandfile = Platform::OpenLocalFile(instnand, "r+b");
}
if (!nandfile)
return false;
@ -138,10 +178,17 @@ void DeInit()
f_unmount("0:");
ff_disk_close();
if (CurFile) fclose(CurFile);
CurFile = nullptr;
}
FILE* GetFile()
{
return CurFile;
}
void GetIDs(u8* emmc_cid, u64& consoleid)
{
memcpy(emmc_cid, eMMC_CID, 16);