unix.c

来自「一个基于linux的TCP/IP协议栈的实现」· C语言 代码 · 共 43 行

/* unix.c
 * [e-mail]
 * 2006-10-20
 */

#include "util.h"
#include "net-support.h"

#include <linux/socket.h>
#include <stdio.h>
#include <string.h>

static char *UNSPEC_print(unsigned char *ptr)
{
	static char buff[64];
	char *pos;
	unsigned int i;

	pos = buff;
	for (i = 0; i < sizeof(struct sockaddr); i++) {
		pos += sprintf(pos, "%02X-", (*ptr++ & 0377));
	}
	buff[strlen(buff) - 1] = '\0';
	return (buff);
}

static char *UNSPEC_sprint(struct sockaddr *sap, int numeric)
{
	static char buf[64];

	if (sap->sa_family == 0xFFFF || sap->sa_family == 0)
		return safe_strncpy( buf, "[NONE SET]", sizeof(buf) );
	return ( UNSPEC_print((unsigned char *)sap->sa_data) );
}

struct aftype unspec_aftype =
{
	"unspec", NULL, AF_UNSPEC, 0,
	UNSPEC_print, UNSPEC_sprint, NULL, NULL,
	NULL,
};