Added additional code to easysock library

includes/easysock.hpp

@@ -12,24 +12,26 @@
 	#include <arpa/inet.h>
 #endif
 
-#include <cstring>
-#include <cstdlib>
-#include <cstdio>
-#include <cerrno>
-
 #ifndef _WIN_32
 	typedef int SOCKET;
 #endif
 
+/* Constants that can be used in place of characters, when specifying
+the transport layer protocol */
+const char ES_TCP 'T';
+const char ES_UDP 'U';
+
 /* This function takes:
 a layer 3 - network layer - integer, which must be '4' for IPv4
-and 6 for IPv6; and
+and 6 for IPv6;
 a layer 4 - transport layer - character, which must be 'T' for
-TCP or 'U' for UDP.
+TCP or 'U' for UDP; and
+a bool that indicates whether the socket should be blocking or non-blocking.
+
 
 It returns the created socket, or -1 if the socket creation failed.*/
 
-SOCKET create_socket(int network, char transport);
+SOCKET create_socket(int network, char transport, bool is_blocking = false);
 
 
 /* This function fills in the sockaddr struct 'dest' based on the given information.
@@ -51,7 +53,7 @@ same as above.
 
 It prints the error returned by 'bind' if something went wrong, and returns ( -1 * errno ).*/
 
-SOCKET create_local (int network, char transport, char* address, int port,struct sockaddr* addr_struct);
+SOCKET create_local (int network, char transport, char* address, int port,struct sockaddr* addr_struct, bool is_blocking = false);
 
 
 /* This function utilizes the same functions as 'create_local' but _connects_ to the
@@ -60,7 +62,7 @@ as above. This function needs an empty 'sockaddr *' structure passed to it, whic
 
 If something goes wrong, this function returns with ( -1 * errno ). */
 
-SOCKET create_remote (int network,char transport,char* address,int port,struct sockaddr* remote_addr_struct);
+SOCKET create_remote (int network,char transport,char* address,int port,struct sockaddr* remote_addr_struct, bool is_blocking = false);
 
 /* check_ip_ver - This function checks if the given string is an IPv4 address (returns 4), 
 IPv6 address (returns 6) or neither (returns -1). */