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#include "dolphin/card.h"
extern u8 __CARDPermMask;
extern CARDDir* __CARDGetDirBlock(CARDControl* card);
BOOL __CARDCompareFileName(CARDDir* ent, const char* fileName) {
char* entName = (char*)ent->fileName;
char c1;
char c2;
int n = CARD_FILENAME_MAX;
while (--n >= 0) {
if ((c1 = *entName++) != (c2 = *fileName++))
return FALSE;
else if (c2 == '\0')
return TRUE;
}
if (*fileName == '\0')
return TRUE;
return FALSE;
}
s32 __CARDAccess(CARDControl* card, CARDDir* ent) {
if (ent->gameName[0] == 0xFF)
return CARD_RESULT_NOFILE;
if (card->diskID == &__CARDDiskNone
|| (memcmp(ent->gameName, card->diskID->game_name, sizeof(ent->gameName)) == 0
&& memcmp(ent->company, card->diskID->company, sizeof(ent->company)) == 0))
return CARD_RESULT_READY;
return CARD_RESULT_NOPERM;
}
s32 __CARDIsPublic(CARDDir* ent) {
if (ent->gameName[0] == 0xFF)
return CARD_RESULT_NOFILE;
if (ent->permission & 4)
return CARD_RESULT_READY;
return CARD_RESULT_NOPERM;
}
s32 __CARDGetFileNo(CARDControl* card, const char* fileName, s32* pfileNo) {
CARDDir* dir;
CARDDir* ent;
s32 fileNo;
s32 result;
if (!card->attached)
return CARD_RESULT_NOCARD;
dir = __CARDGetDirBlock(card);
for (fileNo = 0; fileNo < CARD_MAX_FILE; fileNo++) {
ent = &dir[fileNo];
result = __CARDAccess(card, ent);
if (result < 0)
continue;
if (__CARDCompareFileName(ent, fileName)) {
*pfileNo = fileNo;
return CARD_RESULT_READY;
}
}
return CARD_RESULT_NOFILE;
}
s32 CARDOpen(s32 chan, const char* fileName, CARDFileInfo* fileInfo) {
CARDControl* card;
s32 fileNo;
s32 result;
CARDDir* dir;
CARDDir* ent;
ASSERTLINE(336, 0 <= chan && chan < 2);
fileInfo->chan = -1;
result = __CARDGetControlBlock(chan, &card);
if (result < 0)
return result;
result = __CARDGetFileNo(card, fileName, &fileNo);
if (result >= 0) {
dir = __CARDGetDirBlock(card);
ent = &dir[fileNo];
if (!CARDIsValidBlockNo(card, ent->startBlock))
result = CARD_RESULT_BROKEN;
else {
fileInfo->chan = chan;
fileInfo->fileNo = fileNo;
fileInfo->offset = 0;
fileInfo->iBlock = ent->startBlock;
}
}
return __CARDPutControlBlock(card, result);
}
s32 CARDClose(CARDFileInfo* fileInfo) {
CARDControl* card;
s32 result;
ASSERTLINE(380, 0 <= fileInfo->chan && fileInfo->chan < 2);
ASSERTLINE(381, 0 <= fileInfo->fileNo && fileInfo->fileNo < CARD_MAX_FILE);
result = __CARDGetControlBlock(fileInfo->chan, &card);
if (result < 0)
return result;
fileInfo->chan = -1;
return __CARDPutControlBlock(card, CARD_RESULT_READY);
}
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