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Add support for SOCKS proxies

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This is still raw and experimental.
To connect through a SOCKS proxy, set ZMQ_SOCKS_PROXY socket option on
socket before issuing a connect call, e.g.:

    zmq_setsockopt (s, ZMQ_SOCKS_PROXY,
        "127.0.0.1:22222", strlen ("127.0.0.1:22222"));
    zmq_connect (s, "tcp://127.0.0.1:5555");

Known limitations:
- only SOCKS version 5 supported
- authentication not supported
- new option is still undocumented
This commit is contained in:
Martin Hurton
2014-06-22 10:32:22 +02:00
parent 8b80197207
commit f06ca69ae9
13 changed files with 1176 additions and 119 deletions
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21
src/options.cpp
View File

@@ -206,6 +206,19 @@ int zmq::options_t::setsockopt (int option_, const void *optval_,
}
break;
case ZMQ_SOCKS_PROXY:
if (optval_ == NULL && optvallen_ == 0) {
socks_proxy_address.clear ();
return 0;
}
else
if (optval_ != NULL && optvallen_ > 0 ) {
socks_proxy_address =
std::string ((const char *) optval_, optvallen_);
return 0;
}
break;
case ZMQ_TCP_KEEPALIVE:
if (is_int && (value == -1 || value == 0 || value == 1)) {
tcp_keepalive = value;
@@ -618,6 +631,14 @@ int zmq::options_t::getsockopt (int option_, void *optval_, size_t *optvallen_)
}
break;
case ZMQ_SOCKS_PROXY:
if (*optvallen_ >= socks_proxy_address.size () + 1) {
memcpy (optval_, socks_proxy_address.c_str (), socks_proxy_address.size () + 1);
*optvallen_ = socks_proxy_address.size () + 1;
return 0;
}
break;
case ZMQ_TCP_KEEPALIVE:
if (is_int) {
*value = tcp_keepalive;