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| static boolean GetIP(uint32 *retIP, uint32 *netMask, char *iface)
{
int s, ret;
struct ifreq buffer;
struct sockaddr *sa;
if ( retIP == NULL || netMask == NULL )
{
return false;
}
/* Open a socket */
s = socket(PF_INET, SOCK_DGRAM, 0);
if ( s < 0 )
{
return false;
}
/* Set up the interface request buffer for wlan0. */
memset(&buffer, 0x00, sizeof(buffer));
strlcpy(buffer.ifr_name, iface, IFNAMSIZ);
/* Call the ioctl to get the address. */
ret = ioctl(s, SIOCGIFADDR, &buffer);
if ( ret < 0 )
{
/* Close the socket handle. */
close(s);
return false;
}
/* Copy out the ip address for the interface. */
sa = (struct sockaddr *)&(buffer.ifr_addr);
*retIP = ((struct sockaddr_in *)sa)->sin_addr.s_addr;
/* Set up the interface request buffer for wlan0. */
memset(&buffer, 0x00, sizeof(buffer));
strlcpy(buffer.ifr_name, iface, IFNAMSIZ);
/* Call the ioctl to get the address. */
ret = ioctl(s, SIOCGIFNETMASK, &buffer);
if ( ret < 0 )
{
/* Close the socket handle. */
close(s);
return false;
}
/* Copy out the netmask for the interface. */
sa = (struct sockaddr *)&(buffer.ifr_netmask);
*netMask = ((struct sockaddr_in *)sa)->sin_addr.s_addr;
/* Close the socket handle. */
close(s);
return true;
}
|