MAX_HDR
if (hlen > MAX_HDR || hlen > buflen)
char csu_hdr[MAX_HDR];
MAX_HDR
if (hlen > MAX_HDR)
char csu_hdr[MAX_HDR];
u_char work[MAX_HDR + MAX_VJHEADER]; /* enough to hold TCP/IP header */
bufp = work + MAX_HDR;