Declaration for ipovly from NetLib:netinet.h.ip_var
(Struct)
/*
* Overlay for ip header used by other protocols (tcp, udp).
*/
struct ipovly {
caddr_t ih_next, ih_prev; /* for protocol sequence q's */
u_char ih_x1; /* (unused) */
u_char ih_pr; /* protocol */
short ih_len; /* protocol length */
struct in_addr ih_src; /* source internet address */
struct in_addr ih_dst; /* destination internet address */
};
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