Add NetworkInterface::is_up and NetworkInterface::info.

include/tins/network_interface.h

@@ -130,11 +130,20 @@ public:
     /**
      * \brief Retrieve this interface's addresses.
      * 
+     * This method is deprecated. You should use NetworkInterface::info (this
+     * is just a naming deprecation, NetworkInterface::info is equivalent).
+     * \deprecated
+     */
+    Info addresses() const;
+
+    /**
+     * \brief Retrieve this interface's information.
+     * 
      * This method iterates through all the interface's until the 
      * correct one is found. Therefore it's O(N), being N the amount
      * of interfaces in the system.
      */
-    Info addresses() const;
+    Info info() const;
     
     /**
      * \brief Tests whether this is a valid interface;
@@ -151,7 +160,15 @@ public:
      * @return true iff this is a loopback device.
      */
     bool is_loopback() const;
-    
+
+    /**
+     * \brief Indicates whether this interface is up.
+     *
+     * This is equivalent to getting the interface info and checking for the is_up 
+     * attribute.
+     */
+    bool is_up() const;
+
     /**
      * \brief Compares this interface for equality.
      * 

src/network_interface.cpp

@@ -120,7 +120,7 @@ struct InterfaceInfoCollector {
                 info->ip_addr = IPv4Address(((const struct sockaddr_in *)unicast->Address.lpSockaddr)->sin_addr.s_addr);
                 info->netmask = IPv4Address(host_to_be<uint32_t>(0xffffffff << (32 - unicast->OnLinkPrefixLength)));
                 info->bcast_addr = IPv4Address((info->ip_addr & info->netmask) | ~info->netmask);
-                info->is_up = (iface->Flags & IP_ADAPTER_IPV4_ENABLED);
+                info->is_up = (iface->Flags & IP_ADAPTER_IPV4_ENABLED) != 0;
                 found_ip = true;
                 found_hw = true;
             }
@@ -215,6 +215,10 @@ std::string NetworkInterface::name() const {
 }
 
 NetworkInterface::Info NetworkInterface::addresses() const {
+    return info();
+}
+
+NetworkInterface::Info NetworkInterface::info() const {
     const std::string &iface_name = name();
     Info info;
     InterfaceInfoCollector collector(&info, iface_id, iface_name.c_str());
@@ -231,6 +235,10 @@ bool NetworkInterface::is_loopback() const {
     return addresses().ip_addr.is_loopback();
 }
 
+bool NetworkInterface::is_up() const {
+    return addresses().is_up;
+}
+
 NetworkInterface::id_type NetworkInterface::resolve_index(const char *name) {
     #ifndef WIN32
     id_type id = if_nametoindex(name);