Fix examples/wget build

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1649 42af7a65-404d-4744-a932-0658087f49c3

examples/README.txt

@@ -308,7 +308,7 @@ examples/usbserial
   serial messages.
 
 examples/usbstorage
-^^^^^^^^^^^^^^^^^^
+^^^^^^^^^^^^^^^^^^^
 
   This example registers a block device driver, then exports the block
   the device using the USB storage class driver.  Configuration options:
@@ -347,3 +347,37 @@ examples/usbstorage
 
   Error results are always shown in the trace output
 
+examples/wget
+^^^^^^^^^^^^^
+
+  A simple web client example.  It will obtain a file from a server using the HTTP
+  protocol.  Settings unique to this example include:
+
+    CONFIG_EXAMPLE_WGET_HOSTNAME  - The host that serves the file
+    CONFIG_EXAMPLE_WGET_FILENAME  - The name of the file to get (with leading '/')
+    CONFIG_EXAMPLE_WGET_NOMAC     - (May be defined to use software assigned MAC)
+    CONFIG_EXAMPLE_WGET_IPADDR    - Target IP address
+    CONFIG_EXAMPLE_WGET_DRIPADDR  - Default router IP addess
+    CONFIG_EXAMPLE_WGET_NETMASK   - Network mask
+
+  This example uses netutils/webclient.  Additional configuration settings apply
+  to that code as follows (but built-in defaults are probably OK):
+
+    CONFIG_WEBCLIENT_GETMIMETYPE, CONFIG_WEBCLIENT_MAXHTTPLINE,
+    CONFIG_WEBCLIENT_MAXMIMESIZE, CONFIG_WEBCLIENT_MAXHOSTNAME,
+    CONFIG_WEBCLIENT_MAXFILENAME
+
+  Of course, the example also requires other settings including CONFIG_NET and
+  CONFIG_NET_TCP.  The example also uses the uIP resolver which requires CONFIG_UDP.
+
+  WARNNG: As of this writing, wget is untested on the target platform.  At present
+  it has been tested only in the host-based configuration described in the following
+  note.  The primary difference is that the target version will rely on the also
+  untested uIP name resolver.
+
+  NOTE: For test purposes, this example can be built as a host-based wget function.
+  This can be built as follows:
+
+    cd examples/wget
+    make -f Makefile.host
+

examples/wget/Makefile.host

@@ -40,7 +40,7 @@ include $(TOPDIR)/Make.defs
 OBJS		= host.o1 webclient.o1
 BIN		= wget
 
-HOSTCFLAGS	+= -DCONFIG_NETUTILS_WEBCLIENT_HOST=1
+HOSTCFLAGS	+= -DCONFIG_WEBCLIENT_HOST=1
 HOSTCFLAGS	+= -I. -include hostdefs.h
 VPATH		= $(TOPDIR)/netutils/webclient:.
 

examples/wget/target.c

@@ -40,6 +40,7 @@
 #include <nuttx/config.h>
 
 #include <sys/types.h>
+#include <unistd.h>
 
 #include <netinet/in.h>
 #include <arpa/inet.h>
@@ -86,6 +87,21 @@
 
 static char g_iobuffer[512];
 
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+/****************************************************************************
+ * Name: callback
+ ****************************************************************************/
+
+static void callback(FAR char **buffer, int offset, int datend, FAR int *buflen)
+{
+  (void)write(1, &((*buffer)[offset]), datend - offset);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
 /****************************************************************************
  * user_initialize
  ****************************************************************************/
@@ -106,7 +122,6 @@ void user_initialize(void)
 int user_start(int argc, char *argv[])
 {
   struct in_addr addr;
-  static uip_ipaddr_t addr;
 #if defined(CONFIG_EXAMPLE_WGET_NOMAC)
   uint8 mac[IFHWADDRLEN];
 #endif