Source code of Windows XP (NT5)
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/*
* * Modifications: $Header: W:/LCS/ARCHIVES/preboot/lsa2/inc/ip.h_v 1.3 Apr 04 1997 13:57:08 GRGUSTAF $ * * Copyright(c) 1997 by Intel Corporation. All Rights Reserved. * */
#ifndef _IP_H
#define _IP_H
#define IPLEN 4 /* length of an IP address */
#define PROTUDP 17 /* IP package type is UDP */
#define PROTIGMP 2 /* .. is IGMP */
#define FR_MF 0x2000 /* .. fragment bit */
#define FR_OFS 0x1fff /* .. fragment offset */
/* Internet Protocol (IP) header */typedef struct iph {
UINT8 version; /* version and hdr length */ /* each half is four bits */ UINT8 service; /* type of service for IP */ UINT16 length, /* total length of IP packet */ ident, /* transaction identification */ frags; /* combination of flags and value */
UINT8 ttl, /* time to live */ protocol; /* higher level protocol type */
UINT16 chksum; /* header checksum */
UINT8 source[IPLEN], /* IP addresses */ dest[IPLEN];
} IPLAYER;
struct in_addr { /* INTERNET address */ UINT32 s_addr;};
#endif /* _IP_H */
/* EOF - $Workfile: ip.h $ */
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