// ////////////////////////////////////////////////////////////////////////////
IpAddressGeneric ParseIpAddressFromString(const char *in_string, bool ipv6_ok,
bool mc_ok, bool require_mc)
{
IpAddressGeneric tmp_datum;
try {
if ((in_string == NULL) || (!(*in_string))) {
in_string = "";
MLB::Utility::ThrowInvalidArgument("The IP address string is empty.");
}
tmp_datum = IpAddressGeneric::from_string(in_string);
if ((!ipv6_ok) && tmp_datum.is_v6()) {
if (!tmp_datum.to_v6().is_v4_compatible())
MLB::Utility::ThrowInvalidArgument("The address is an IPv6 "
"address which is not convertible to an IPv4 equivalent.");
tmp_datum = tmp_datum.to_v6().to_v4();
}
if ((!mc_ok) && IsMulticastIP(tmp_datum))
MLB::Utility::ThrowInvalidArgument("The address is a multicast group "
"which was not specified as desireable in this context.");
if (require_mc)
CheckIsMulticastIP(tmp_datum);
}
catch (const std::exception &except) {
MLB::Utility::Rethrow(except, "The " +
std::string((require_mc) ? " multicast group " : " ip address ") +
"specification string '" + std::string(in_string) +
"' is invalid: " + std::string(except.what()));
}
return(tmp_datum);
}
int main(int argc, char **argv)
{
usage();
if(argc != 3)
{
return -1;
}
string ip_str = argv[1];
uint32_t ip;
uint16_t port = atoi(argv[2]);
int fd;
int ec;
struct sockaddr_in sockaddr;
fd = socket(AF_INET, SOCK_DGRAM, 0);
ec = fd;
EC_CHECK_RETURN(ec);
ip = Str2IP(ip_str);
if(IsMulticastIP(ip))
{
struct ip_mreq mreq;
memset(&mreq, 0, sizeof(mreq));
inet_aton(ip_str.c_str(), &mreq.imr_multiaddr);
ec = setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP, &mreq,sizeof(mreq));
EC_CHECK_RETURN(ec);
}
sockaddr.sin_family=AF_INET;
sockaddr.sin_addr.s_addr=htonl(ip);
sockaddr.sin_port=htons(port);
// ec = connect(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr));
EC_CHECK_RETURN(ec);
char data[1536];
int length, data_length = 1024;
while(true)
{
length = sendto(fd, (void *)data, data_length, 0,
(struct sockaddr *)&sockaddr, sizeof(struct sockaddr));
if(length < 0)
{
if(errno != EAGAIN)
{
cout << "Failed to send data, errno: " << errno << "," << strerror(errno) << endl;
break;
}
}
cout << "send data length " << length << endl;
usleep(10 * 1000);
}
return 0;
}
