@@ -16,11 +16,31 @@
 #import "OFObject.h"
 #import "OFString.h"
 
 OF_ASSUME_NONNULL_BEGIN
 
+@class OFDictionary OF_GENERIC(KeyType, ObjectType);
 @class OFIRI;
+
+#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+/**
+ * @brief A key in the per-interface dictionary returned by
+ *	  @ref networkInterfaces.
+ *
+ * Possible keys are:
+ *
+ *   * @ref OFNetworkInterfaceAddresses
+ */
+typedef OFString *OFNetworkInterfaceInfoKey;
+
+/**
+ * @brief The addresses of a network interface.
+ *
+ * This maps to an @ref OFData of @ref OFSocketAddress.
+ */
+extern const OFConstantString *OFNetworkInterfaceAddresses;
+#endif
 
 /**
  * @class OFSystemInfo OFSystemInfo.h ObjFW/OFSystemInfo.h
  *
  * @brief A class for querying information about the system.
@@ -59,10 +79,15 @@
 # if defined(OF_POWERPC) || defined(OF_POWERPC64) || defined(DOXYGEN)
 @property (class, readonly, nonatomic) bool supportsAltiVec;
 # endif
 # ifdef OF_WINDOWS
 @property (class, readonly, nonatomic, getter=isWindowsNT) bool windowsNT;
+# endif
+# if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+@property (class, readonly, nonatomic) OFDictionary OF_GENERIC(OFString *,
+    OFDictionary OF_GENERIC(OFNetworkInterfaceInfoKey, id) *)
+    *networkInterfaces;
 # endif
 #endif
 
 /**
  * @brief Returns the size of a page.
@@ -335,11 +360,22 @@
  *
  * @return Whether the application is running on Windows NT
  */
 + (bool)isWindowsNT;
 #endif
+
+#if defined(OF_HAVE_SOCKETS) && defined(OF_HAVE_GETIFADDRS)
+/**
+ * @brief Returns the available (though not necessarily configured) network
+ *	  interfaces and information about them.
+ *
+ * @return The available network interfaces and information about them
+ */
++ (OFDictionary OF_GENERIC(OFString *, OFDictionary
+    OF_GENERIC(OFNetworkInterfaceInfoKey, id) *) *)networkInterfaces;
+#endif
 
 + (instancetype)alloc OF_UNAVAILABLE;
 - (instancetype)init OF_UNAVAILABLE;
 @end
 
 OF_ASSUME_NONNULL_END