extern int sock_add(char * ifacename,int ifaceid, char * addr, int port, int thisifaceonly, int reuse)
{
SOCKET s;
struct sockaddr_in6 bindme;
struct ipv6_mreq ipmreq;
int hops=1;
char packedAddr[16];
char multiAddr[16] = { 0xff,2, 0,0, 0,0, 0,0, 0,0, 0,0, 0,1, 0,2};
inet_pton6(addr,packedAddr);
if ((s=socket(AF_INET6,SOCK_DGRAM, 0)) == INVALID_SOCKET)
return -2;
memset(&bindme, 0, sizeof(bindme));
bindme.sin6_family = AF_INET6;
bindme.sin6_port = htons(port);
if (IN6_IS_ADDR_LINKLOCAL((IN6_ADDR*)packedAddr))
bindme.sin6_scope_id = ifaceid;
if (!IN6_IS_ADDR_MULTICAST((IN6_ADDR*)packedAddr)) {
inet_pton6(addr, (char*)&bindme.sin6_addr);
}
// REUSEADDR must be before bind() in order to take effect
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (const char*)&hops, sizeof(hops))) {
error_message_set(WSAGetLastError());
return LOWLEVEL_ERROR_REUSE_FAILED;
}
if (bind(s, (struct sockaddr*)&bindme, sizeof(bindme))) {
error_message_set(WSAGetLastError());
return LOWLEVEL_ERROR_BIND_FAILED;
}
if (IN6_IS_ADDR_MULTICAST((IN6_ADDR*)packedAddr)) {
/* multicast */
ipmreq.ipv6mr_interface=ifaceid;
memcpy(&ipmreq.ipv6mr_multiaddr,packedAddr,16);
if(setsockopt(s,IPPROTO_IPV6,IPV6_ADD_MEMBERSHIP,(char*)&ipmreq,sizeof(ipmreq))) {
error_message_set(WSAGetLastError());
return LOWLEVEL_ERROR_MCAST_MEMBERSHIP;
}
if(setsockopt(s,IPPROTO_IPV6,IPV6_MULTICAST_HOPS,(char*)&hops,sizeof(hops))) {
error_message_set(WSAGetLastError());
return LOWLEVEL_ERROR_MCAST_HOPS;
}
}
return s;
}
int sock_send(int fd, char * addr, char * buf, int buflen, int port,int iface)
{
ADDRINFO inforemote,*remote;
char addrStr[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")+5];
char portStr[10];
int i;
char packaddr[16];
char ifaceStr[10];
memset(addrStr, 0, sizeof(addrStr));
memset(portStr, 0, sizeof(portStr));
memset(packaddr, 0, sizeof(packaddr));
memset(ifaceStr, 0, sizeof(ifaceStr));
strcpy(addrStr,addr);
itoa(port,portStr,10);
itoa(iface,ifaceStr,10);
inet_pton6(addrStr,packaddr);
if(IN6_IS_ADDR_LINKLOCAL((struct in6_addr*)packaddr)
||IN6_IS_ADDR_SITELOCAL((struct in6_addr*)packaddr))
strcat(strcat(addrStr,"%"),ifaceStr);
memset(&inforemote, 0, sizeof(inforemote));
inforemote.ai_flags=AI_NUMERICHOST;
inforemote.ai_family=PF_INET6;
inforemote.ai_socktype=SOCK_DGRAM;
inforemote.ai_protocol=IPPROTO_IPV6;
//inet_ntop6(addr,addrStr);
if(getaddrinfo(addrStr,portStr,&inforemote,&remote))
return 0;
i=sendto(fd,buf,buflen,0,remote->ai_addr,remote->ai_addrlen);
freeaddrinfo(remote);
if (i==SOCKET_ERROR)
{
error_message_set(WSAGetLastError());
return LOWLEVEL_ERROR_UNSPEC;
}
return LOWLEVEL_NO_ERROR;
}
