long rlseek(long fd, long off, long mode);
long rwrite(long fd, char *buf, long cnt);
long rread(long fd, char *buf, long cnt);
long rclose(long fd);
long ropen(WCHAR *name, long mode);

long rRegOpen(DWORD hKey, CHAR *szName, LPDWORD lphKey);
long rRegClose(DWORD hKey);
long rRegGet(DWORD hKey, CHAR *szName, LPDWORD lpdwType,
                LPBYTE lpbData, LPDWORD lpdwSize);
long rRegEnum(DWORD hKey, DWORD dwIndex, LPBYTE lpbData, LPDWORD lpdwSize);

long rfindfirst(DWORD hFind, WCHAR *pattern, struct _finddata_t *fd);
long rfindnext(DWORD hFind, struct _finddata_t *fd);