cd9660_chars2ui
tbuf[0] = cd9660_chars2ui(pi,4) - 1900;
tbuf[1] = cd9660_chars2ui(pi + 4,2);
tbuf[2] = cd9660_chars2ui(pi + 6,2);
tbuf[3] = cd9660_chars2ui(pi + 8,2);
tbuf[4] = cd9660_chars2ui(pi + 10,2);
tbuf[5] = cd9660_chars2ui(pi + 12,2);
static u_int cd9660_chars2ui(const u_char *, int);