libcoap: add coap client and server packages

Client package adds the CoAP client allowing to communicate with 6LoWPAN
devices via the CoAP protocol.
Server package adss the CoAP server and the CoAP Resource Directory server.
The CoAP server allows to simulate 6LoWPAN devices which can be addressed
via the CoAP protocol while the CoAP Resource Directory server can handle
resource registrations using the CoAP protocol.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>

libs/libcoap/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libcoap
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/obgm/libcoap
@@ -39,10 +39,32 @@ define Package/libcoap/description
   Constrained Application Protocol (RFC 7252) library
 endef
 
+define Package/coap-client
+  SECTION:=utils
+  CATEGORY:=Utilities
+  DEPENDS:=+libcoap
+  TITLE:=CoAP (RFC 7252) client tool
+endef
+
+define Package/coap-client/description
+  Constrained Application Protocol (RFC7252) client tool
+endef
+
+define Package/coap-server
+  SECTION:=net
+  CATEGORY:=Network
+  DEPENDS:=+libcoap
+  TITLE:=CoAP (RFC 7252) server programs
+endef
+
+define Package/coap-server/description
+  Constrained Application Protocol (RFC 7252) server and resource directory server
+endef
+
 TARGET_CFLAGS += $(FPIC)
 
 CONFIGURE_ARGS += \
-	--disable-examples \
+	--enable-examples \
 	--disable-documentation
 
 ifeq ($(CONFIG_BIG_ENDIAN),y)
@@ -62,4 +84,17 @@ define Package/libcoap/install
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libcoap-1.so* $(1)/usr/lib/
 endef
 
+define Package/coap-client/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/coap-client $(1)/usr/bin/
+endef
+
+define Package/coap-server/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/coap-server $(1)/usr/bin/
+	$(CP) $(PKG_INSTALL_DIR)/usr/bin/coap-rd $(1)/usr/bin/
+endef
+
 $(eval $(call BuildPackage,libcoap))
+$(eval $(call BuildPackage,coap-client))
+$(eval $(call BuildPackage,coap-server))