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功能描述:此程序是用于检测局域网连接状况,通过ping网关来实现
问题描述:程序运行来Ping进程就卡死在这里,根本没有进入while循环的判断,也没有跳过while循环执行后面的程序,也就是说只是打印出000000000000000000000000000。同时我在系统里面用ps查看发现ping进程始终没有消失(按理说ping 3次几秒钟就完事了啊)。如果单独将此程序放在linux下gcc编译运行,发现能正常运行ping进程也正常结束。但是一加入公司工程里面去去运行就卡死。是否是我还有某些细节没有注意到啊?请大家指点指点!谢谢
int Network_LAN_Connection_Detect(void)
{
BOOL lanStatus = FALSE;
FILE* fpout = NULL;
char buf[20];
memset(buf,'\0',sizeof(buf));
printf("0000000000000000000000000000000000\n");
if(TRUE == Network_Detect_Eth0_NetworkCable_State()) //check wheather TV is connected with NetworkCable
{
if( (fpout = popen("ping -c3 192.168.0.1","r")) == NULL)
{
printf("pclose error!\n");
exit(1);
}
while(fgets(buf,20,fpout))
{
printf("111111111111111111111111111111111\n");
if(strstr(buf,"100%"))
{
printf(" All packets Loss \n");
lanStatus = 0;
printf(" lanStatus is = %d\n",lanStatus);
break;
}
else if(strstr(buf,"0%"))
{
printf(" No packets Loss\n");
lanStatus = 1;
printf(" lanStatus is = %d\n",lanStatus);
break;
}
}
printf("222222222222222222222222222222222\n");
if(pclose(fpout) == -1)
printf("pclose error too!\n");
printf("33333333333333333333333333333333333\n");
}
else
{
printf("TV is not connected with NetworkCable!\n");
printf("LanStatus is = %d\n",lanStatus);
lanStatus = FALSE;
}
printf("44444444444444444444444444444444444444444444\n");
return 0;
}
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