network.h,v

来自「TCP-IP红宝书源代码」· H,V 代码 · 共 98 行

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date	97.09.21.19.26.19;	author dls;	state Dist;
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date	94.05.10.20.48.46;	author dls;	state Old;
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@/* network.h */

/* All includes needed for the network */

#include <lereg.h>    
#include <ip.h>
#include <ether.h>
#include <ipreass.h>
#include <icmp.h>
#include <udp.h>
#include <tcp.h>
#include <tcpfsm.h>
#include <tcpstat.h>
#include <tcb.h>
#include <net.h>
#include <dgram.h>
#include <arp.h>
#include <fserver.h>
#include <rfile.h>
#include <domain.h>
#include <dma.h>
#include <netif.h>
#include <route.h>
#ifdef	RIP
#include <rip.h>
#endif	/* RIP */
#include <daemon.h>
#include <snmpvars.h>

/* Declarations data conversion and checksum routines */

extern	unsigned short 	cksum();    /* 1s comp of 16-bit 1s comp sum*/

#if	BYTE_ORDER == LITTLE_ENDIAN
#define hs2net(x) (unsigned) ((((x)>>8) &0xff) | (((x) & 0xff)<<8))
#define	net2hs(x) hs2net(x)

#define hl2net(x)	(((((x)& 0xff)<<24) | ((x)>>24) & 0xff) | \
	(((x) & 0xff0000)>>8) | (((x) & 0xff00)<<8))
#define net2hl(x) hl2net(x)
#endif

#if	BYTE_ORDER == BIG_ENDIAN
#define hs2net(x) (x)
#define net2hs(x) (x)
#define hl2net(x) (x)
#define net2hl(x) (x)
#endif

/* network macros */
#define hi8(x)   (unsigned char)  (((long) (x) >> 16) & 0x00ff)
#define low16(x) (unsigned short) ((long) (x) & 0xffff)

#define	BYTE(x, y)	((x)[(y)]&0xff)	/* get byte "y" from ptr "x" */
@


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#define hs2net(x) (unsigned) ((unsigned) ((x)>>8) + (unsigned)((x)<<8))
#define net2hs(x) (unsigned) ((unsigned) ((x)>>8) + (unsigned)((x)<<8))
@