Support up to 16 characters for the username and password of SOCKS5.

examples/client/client.cpp

@@ -75,7 +75,7 @@ public:
 			return false;
 
 		//without following setting, socks4::client_socket will be downgraded to normal client_socket
-		//socket_ptr->set_target_addr(6000, "127.0.0.1"); //target server address, original server address becomes SOCK4 server address
+		//socket_ptr->set_target_addr(9527, "172.27.0.14"); //target server address, original server address becomes SOCK4 server address
 		return socket_ptr->send_msg(std::move(msg));
 	}
 
@@ -126,7 +126,7 @@ int main(int argc, const char* argv[])
 
 	client.set_server_addr(port, ip);
 	//without following setting, socks5::single_client will be downgraded to normal single_client
-	//client.set_target_addr(6000, "127.0.0.1"); //target server address, original server address becomes SOCK4 server address
+	//client.set_target_addr(9527, "172.27.0.14"); //target server address, original server address becomes SOCK5 server address
 	//client.set_auth("ascs", "ascs"); //can be omitted if the SOCKS5 server support non-auth
 	client2.set_server_addr(port + 100, ip);
 

include/ascs/tcp/proxy/socks.h

@@ -176,11 +176,11 @@ private:
 		res_len = 0;
 
 		req[0] = 1;
-		req[1] = (char) std::min(username.size(), (size_t) 8);
+		req[1] = (char) std::min(username.size(), (size_t) 16);
 		memcpy(std::next(req, 2), username.data(), (size_t) req[1]);
-		req[2 + req[1]] = (char) std::min(password.size(), (size_t) 8);
+		req[2 + req[1]] = (char) std::min(password.size(), (size_t) 16);
 		memcpy(std::next(req, 3 + req[1]), password.data(), (size_t) req[2 + req[1]]);
-		req_len = 2 + req[1] + 1 + req[2 + req[1]];
+		req_len = 1 + 1 + req[1] + 1 + req[2 + req[1]];
 
 		asio::async_write(this->next_layer(), asio::buffer(req, req_len),
 			this->make_handler_error_size([this](const asio::error_code& ec, size_t bytes_transferred) {this->send_handler(ec, bytes_transferred);}));
@@ -331,7 +331,7 @@ private:
 	}
 
 private:
-	char req[24], res[24];
+	char req[40], res[24];
 	size_t req_len, res_len;
 	int step;