// All of ElfObjects functions.
ElfObject::ElfObject(const wxString& srcfile, IsoFile& isofile)
: data( wxULongLong(isofile.getLength()).GetLo(), L"ELF headers" )
, proghead( NULL )
, secthead( NULL )
, filename( srcfile )
, header( *(ELF_HEADER*)data.GetPtr() )
{
isCdvd = true;
checkElfSize(data.GetSizeInBytes());
readIso(isofile);
initElfHeaders();
}
static void readIso(FILE *fp, int block, int flags) {
if (block < 0) {
uint8_t buf[128];
fread(buf, sizeof(buf), 1, fp);
if (buf[0] == 1 && memcmp(buf + 40, "CD-ROM", 6) == 0) {
const int offset = readUint32BE(buf + 100);
readIso(fp, offset, 0);
}
} else {
uint32_t attr = 0;
do {
fseek(fp, block * BLOCK_SIZE + 20, SEEK_SET);
do {
uint8_t buf[72];
fread(buf, sizeof(buf), 1, fp);
attr = readUint32BE(buf);
const char *name = (const char *)buf + 32;
const uint32_t count = readUint32BE(buf + 64);
const uint32_t offset = readUint32BE(buf + 68);
fseek(fp, count * 4, SEEK_CUR);
switch (attr & 255) {
case 2:
if (flags & 1) {
const int pos = ftell(fp);
dumpGameData(name, fp, offset * BLOCK_SIZE, readUint32BE(buf + 16));
fseek(fp, pos, SEEK_SET);
}
break;
case 7:
if (strcmp(name, GAMEDATA_DIRECTORY) == 0) {
readIso(fp, offset, 1);
}
break;
}
} while (attr < 256);
++block;
} while ((attr >> 24) == 0x40);
}
}
int extractOperaIso(FILE *fp) {
readIso(fp, -1, 0);
return 0;
}
