siocgifname.c

来自「一个基于linux的TCP/IP协议栈的实现」· C语言 代码 · 共 28 行

/* SIOCGIFNAME.c
 * [e-mail]
 * 2006-10-25
 */

#include "log.h"
#include "SIOCGIFNAME.h"

#include <sys/ioctl.h>
#include <sys/socket.h>
#include <linux/if.h>
#include <stdio.h>
#include <stdlib.h>

void test_gifname( int sock_fd )
{
	struct ifreq ifr;
	PR_NOTICE( "test SIOCGIFNAME...\n" );
	ifr.ifr_ifindex = 1;
	fprintf( stdout, "interface index	name\n" );
	while( 1 ){
		if( ioctl( sock_fd, SIOCGIFNAME, &ifr ) < 0 )
			break;
		fprintf( stdout, "           %d	%s\n", ifr.ifr_ifindex, ifr.ifr_name );
		ifr.ifr_ifindex++;
	}
}