ÔÚlinuxÏ »ñÈ¡£¬ÐÞ¸Ä×ÓÍøÑÚÂëNETMASKµÄÁ½¸öº¯Êý
//»ñÈ¡×ÓÍøÑÚÂëµÄº¯ÊýQString GetLocalNetMask()
{
int sock_netmask;
char netmask_addr[50];
struct ifreq ifr_mask;
struct sockaddr_in *net_mask;
sock_netmask = socket( AF_INET, SOCK_STREAM, 0 );
if( sock_netmask == -1)
{
perror("create socket failture...GetLocalNetMask\n");
return "";
}
memset(&ifr_mask, 0, sizeof(ifr_mask));
strncpy(ifr_mask.ifr_name, ifname, sizeof(ifr_mask.ifr_name )-1);
if( (ioctl( sock_netmask, SIOCGIFNETMASK, &ifr_mask ) ) < 0 )
{
printf("mac ioctl error\n");
return "";
}
net_mask = ( struct sockaddr_in * )&( ifr_mask.ifr_netmask );
strcpy( netmask_addr, inet_ntoa( net_mask -> sin_addr ) );
printf("local netmask:%s\n",netmask_addr);
close( sock_netmask );
return QString( netmask_addr );
}
//ÐÞ¸Ä×ÓNETMASKµÄº¯Êý
QString SetLocalNetMask(const char *szNetMask)
{
int sock_netmask;
char netmask_addr[32];
struct ifreq ifr_mask;
struct sockaddr_in *sin_net_mask;
sock_netmask = socket( AF_INET, SOCK_STREAM, 0 );
if( sock_netmask == -1)
{
perror("Not create network socket connect\n");
return "";
}
memset(&ifr_mask, 0, sizeof(ifr_mask));
strncpy(ifr_mask.ifr_name, "eth0", sizeof(ifr_mask.ifr_name )-1);
sin_net_mask = (struct sockaddr_in *)&ifr_mask.ifr_addr;
sin_net_mask -> sin_family = AF_INET;
inet_pton(AF_INET, szNetMask, &sin_net_mask ->sin_addr);
if(ioctl(sock_netmask, SIOCSIFNETMASK, &ifr_mask ) < 0)
{
printf("sock_netmask ioctl error\n");
return "";
}
}
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sudo ifconfig eth0 up
sudo /etc/init.d/dhcp3-server restart
sudo /etc/init.d/networking restart
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