#include <netinet/udp.h>
BSD / POSIX › Networking

netinet/udp.h

includes: sys/appleapiopts.h, sys/types.h
1 struct · 1 macro

structudphdr

Udp protocol header. Per RFC 768, September, 1981.
size 8, align 2
u_shortuh_sportsource port
u_shortuh_dportdestination port
u_shortuh_ulenudp length
u_shortuh_sumudp checksum

macroUDP_NOCKSUM

User-settable options (used with setsockopt).
#define UDP_NOCKSUM 0x01
don't checksum outbound payloads