Qt5 QUdpSocket and setsockopt
Hi
I have the following code to set up a QUdpSocket that i wish to apply a setsockopt to be able to IPPROTO_IP and IP_MULTICAST_IF. Code will not compile on the setsockopt call with the following error
Code:
error: expected primary-expression before 'char'
int result = setsockopt(udpSocket->socketDescriptor(), IPPROTO_IP, IP_MULTICAST_IF, char*(&multicastInterface), sizeof(struct in_addr));
^
Can I not do a setsockopt on the socketdescriptor of a QUdpSocket, or have I made another basic C mistake that I can't see? Or to do this do I just to create a C socket and not use QUdpSocket - or can I link them together somehow??
My reason for needing to try this is I have a problem similar to this post
https://serverfault.com/questions/81...ple-interfaces
Thanks!
Tara
Code:
struct servent *serv;
serv = getservbyname("data_in", "udp");
quint16 port = qFromBigEndian(uint16_t(serv->s_port));
{
struct in_addr multicastInterface;
multicastInterface.s_addr =inet_addr("230.70.10.10");
int result = setsockopt(udpSocket->socketDescriptor(), IPPROTO_IP, IP_MULTICAST_IF, char*(&multicastInterface), sizeof(struct in_addr));
}