linux、windows断网判断机制
#include <linux/sockios.h>#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/if.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define ETHTOOL_GLINK 0x0000000a /* Get link status (ethtool_value) */
typedef enum { IFSTATUS_UP, IFSTATUS_DOWN, IFSTATUS_ERR } interface_status_t;
typedef signed int u32;
/* for passing single values */
struct ethtool_value
{
u32 cmd;
u32 data;
};
interface_status_t interface_detect_beat_ethtool(int fd, char *iface)
{
struct ifreq ifr;
struct ethtool_value edata;
memset(&ifr, 0,>
strncpy(ifr.ifr_name, iface,> edata.cmd = ETHTOOL_GLINK;
ifr.ifr_data = (caddr_t) &edata;
if (ioctl(fd, SIOCETHTOOL, &ifr) == -1)
{
// perror("ETHTOOL_GLINK failed ");
return IFSTATUS_ERR;
}
return edata.data ? IFSTATUS_UP : IFSTATUS_DOWN;
}
int main (int argc, char *argv[])
{
FILE *fp;
interface_status_t status;
char buf = {'\0'};
char hw_name = {'\0'};
char *token = NULL;
/* 获取活动网卡名称 */
int fd_eth;
int interfaceNum = 0;
struct ifreq buf_eth;
struct ifconf ifc_eth;
struct ifreq ifrcopy_eth;
if ((fd_eth = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
perror("socket");
close(fd_eth);
return -1;
}
ifc_eth.ifc_len => ifc_eth.ifc_buf = (caddr_t)buf_eth;
if (!ioctl(fd_eth, SIOCGIFCONF, (char *)&ifc_eth))
{
interfaceNum = ifc_eth.ifc_len /> // printf("interface num = %d\n", interfaceNum);
while (interfaceNum-- > 0)
{
if(strstr(buf_eth.ifr_name,"eth") != NULL)
{
printf("device name:@@@@@@@@@@@\n");
printf("device name: %s\n", buf_eth.ifr_name);
strncpy(hw_name,buf_eth.ifr_name, strlen(buf_eth.ifr_name));
}
}
}
//判断是否插入网线
int fd;
if((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
perror("socket ");
exit(0);
}
me/yckj/Desktop/linux上svn的使用.docx'
status = interface_detect_beat_ethtool(fd, hw_name);
close(fd);
switch (status)
{
case IFSTATUS_UP:
printf("%s : link up\n", hw_name);
break;
case IFSTATUS_DOWN:
printf("%s : link up\n", hw_name);
break;
default:
printf("Detect Error\n");
break;
}
return 0;
} 这是什么语言写的 为赚金币回复你
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