example fix

Author: atomlin-git

README.md

@@ -4,16 +4,16 @@
 
 ```cpp
 // announce callbacks:
-callback<udp_callback_t> udp_callback;
+ep::callback<udp_callback_t> udp_callback;
 
 // install detour functions:
-udp_callback.install([&](client* person, unsigned int& source_ip, unsigned int& dest_ip, unsigned short& source_port, unsigned short& dest_port, proxys::data* buf) -> bool {
-    printf("[%s -> %s | %d -> %d] length: %d\n\n", utils::dip_to_strip(source_ip).c_str(), utils::dip_to_strip(dest_ip).c_str(), source_port, dest_port, buf->length);
+udp_callback.install([&](ep::client* person, unsigned int& source_ip, unsigned int& dest_ip, unsigned short& source_port, unsigned short& dest_port, ep::buffer* buf) -> bool {
+    printf("[%s -> %s | %d -> %d] length: %d\n\n", ep::utils::dip_to_strip(source_ip).c_str(), ep::utils::dip_to_strip(dest_ip).c_str(), source_port, dest_port, buf->length);
     return true;
 });
 
 // enable callbacks treatment:
-server.callback_enable(proxys::callback_udp, &udp_callback);
+proxy.callback_enable(ep::callback_t::udp, &udp_callback);
 ```
 ###### due to the peculiarities of the TCP/IP protocol, the dest IP and port cannot be changed on the go, because of this, the TCP callback has a different structure: ```(client* person, std::string source_ip, std::string dest_ip, proxys::data* buf)```
 ###### one-header solution available in "one-header" branch