tcpiss.c

来自「TCP-IP红宝书源代码」· C语言 代码 · 共 24 行

C
24
字号
/* tcpiss.c - tcpiss */

#include <conf.h>
#include <kernel.h>
#include <network.h>

#define	TCPINCR		904

/*------------------------------------------------------------------------
 *  tcpiss -  set the ISS for a new connection
 *------------------------------------------------------------------------
 */
int
tcpiss(void)
{
	static	int	seq = 0;
	extern	long	clktime;		/* the system ticker	*/

	if (seq == 0)
		seq = clktime;
	seq += TCPINCR;
	return seq;
}

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