scanc
ce = cc - scanc((u_int)cc, cp, char_type,
int scanc(u_int, const u_char *, const u_char *, int);
loc = scanc((u_int)len,
loc = scanc((u_int)len,
loc = scanc((u_int)len,
loc = scanc((u_int)len,
static int scanc(u_int, const u_char *, const u_char *, int);