Build/test framework for the Zmodem sz and rz commands which are on their way

10 files changed, 632 insertions, 1 deletions

diff --git a/apps/ChangeLog.txt b/apps/ChangeLog.txt
index bcfaf8087..08d2cca32 100644
--- a/apps/ChangeLog.txt
+++ b/apps/ChangeLog.txt
@@ -601,3 +601,6 @@
 	* apps/examples/composite/composite_main.c:  SourceForge But Ticket #19.
 	  Change to prevent some false alarm debug assertions (From Chia Cheng
 	  Tao, 2013-7-9).
+	* apps/system/zmodem:  Add configuration support and a build framework
+	  for the Zmodem sz and rz command (which don't actually exist yet).
+	  (2013-7-12).
diff --git a/apps/include/zmodem.h b/apps/include/zmodem.h
new file mode 100644
index 000000000..5ba938254
--- /dev/null
+++ b/apps/include/zmodem.h
@@ -0,0 +1,254 @@
+/****************************************************************************
+ * apps/include/zmodem.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * References:
+ *   "The ZMODEM Inter Application File Transfer Protocol", Chuck Forsberg,
+ *    Omen Technology Inc., October 14, 1988
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_INCLUDE_ZMODEM_H
+#define __APPS_INCLUDE_ZMODEM_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+/* The size of one buffer used to read data from the remote peer */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_RCVBUFSIZE
+#  define CONFIG_SYSTEM_ZMODEM_RCVBUFSIZE 512
+#endif
+
+/* Data may be received in gulps of varying size and alignment.  Received
+ * packets data is properly packed into a packet buffer of this size.
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_PKTBUFSIZE
+#  define CONFIG_SYSTEM_ZMODEM_PKTBUFSIZE 512
+#endif
+
+/* The size of one transmit buffer used for composing messages sent to the
+ * remote peer.
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_SNDBUFSIZE
+#  define CONFIG_SYSTEM_ZMODEM_SNDBUFSIZE 512
+#endif
+
+/* Absolute pathes are not accepted.  This configuration value must be
+ * set to provide the path to the file storage directory (such as a
+ * mountpoint directory).
+ */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MOUNTPOINT
+#  define CONFIG_SYSTEM_ZMODEM_MOUNTPOINT "/tmp"
+#endif
+
+/* Response time for sender to respond to requests */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_RESPTIME
+#  define CONFIG_SYSTEM_ZMODEM_RESPTIME 10
+#endif
+
+/* Receiver serial number */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_SERIALNO
+#  define CONFIG_SYSTEM_ZMODEM_SERIALNO 1
+#endif
+
+/* Max receive errors before canceling the transfer */
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MAXERRORS
+#  define CONFIG_SYSTEM_ZMODEM_MAXERRORS 20
+#endif
+
+#ifndef CONFIG_SYSTEM_ZMODEM_MOUNTPOINT
+#  define CONFIG_SYSTEM_ZMODEM_MOUNTPOINT "/tmp"
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+/* Opaque handles returned by initialization functions */
+
+typedef FAR void *ZMHANDLE;
+typedef FAR void *ZMRHANDLE;
+typedef FAR void *ZMSHANDLE;
+
+/* Enumerations describing arguments to zms_initialize() */
+
+enum zm_xfertype_e
+{
+  XM_XFERTYPE_NORMAL = 0,    /* Normal file transfer */
+  XM_XFERTYPE_BINARY = 1,    /* Binary transfer */
+  XM_XFERTYPE_ASCII  = 2,    /* Convert \n to local EOL convention */
+  XM_XFERTYPE_RESUME = 3     /* Resume interrupted transfer or append to file. */
+};
+
+enum zm_option_e
+{
+  XM_OPTION_NONE     = 0,    /* Transfer if source newer or longer */
+  XM_OPTION_NEWL     = 1,    /* Transfer if source newer or longer */
+  XM_OPTION_CRC      = 2,    /* Transfer if different CRC or length */
+  XM_OPTION_APPEND   = 3,    /* Append to existing file, if any */
+  XM_OPTION_REPLACE  = 4,    /* Replace existing file */
+  XM_OPTION_NEW      = 5,    /* Transfer if source is newer */
+  XM_OPTION_DIFF     = 6,    /* Transfer if dates or lengths different */
+  XM_OPTION_CREATE   = 7,    /* Protect: transfer only if dest doesn't exist */
+  XM_OPTION_RENAME   = 8     /* Change filename if destination exists */
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: zmr_initialize
+ *
+ * Description:
+ *   Initialize for Zmodem receive operation
+ *
+ * Input Parameters:
+ *   remfd - The R/W file/socket descriptor to use for communication with the
+ *      remote peer.
+ *
+ ****************************************************************************/
+
+ZMRHANDLE zmr_initialize(int remfd);
+
+/****************************************************************************
+ * Name: zmr_release
+ *
+ * Description:
+ *   Called by the user when there are no more files to receive.
+ *
+ ****************************************************************************/
+
+int zmr_release(ZMRHANDLE);
+
+/****************************************************************************
+ * Name: zms_initialize
+ *
+ * Description:
+ *   Initialize for Zmodem send operation.  The overall usage is as follows:
+ *
+ *   1) Call zms_initialize() to create the partially initialized struct
+ *      zm_state_s instance.
+ *   2) Make any custom settings in the struct zms_state_s instance.
+ *   3) Create a stream instance to get the "file" to transmit and add
+ *      the filename to pzms
+ *   4) Call zms_upload() to transfer the file.
+ *   5) Repeat 3) and 4) to transfer as many files as desired.
+ *   6) Call zms_release() when the final file has been transferred.
+ *
+ * Input Parameters:
+ *   remfd - The R/W file/socket descriptor to use for communication with the
+ *      remote peer.
+ *
+ ****************************************************************************/
+
+ZMSHANDLE zms_initialize(int remfd);
+
+/****************************************************************************
+ * Name: zms_send
+ *
+ * Description:
+ *   Send a file.
+ *
+ * Input Parameters:
+ *   handle - Handle previoulsy returned by xms_initialize()
+ *   filename - The name of the local file to transfer
+ *   rfilename - The name of the remote file name to create
+ *   option - Describes optional transfer behavior
+ *   f1 - The F1 transfer flags
+ *   skip - True:  Skip if file not present at receiving end.
+ *
+ ****************************************************************************/
+
+int zms_send(ZMSHANDLE handle, FAR const char *filename,
+             FAR const char *rfilename, enum zm_xfertype_e xfertype,
+             enum zm_option_e option,  bool skip);
+
+/****************************************************************************
+ * Name: zms_release
+ *
+ * Description:
+ *   Called by the user when there are no more files to send.
+ *
+ ****************************************************************************/
+
+int zms_release(ZMSHANDLE handle);
+
+/****************************************************************************
+ * Name: zms_hwflowcontrol
+ *
+ * Description:
+ *   If CONFIG_SYSTEM_ZMODEM_FULLSTREAMING is defined, then the system
+ *   must provide the following interface in order to enable/disable hardware
+ *   flow control on the device used to communicate with the remote peer.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_SYSTEM_ZMODEM_FULLSTREAMING
+int zms_hwflowcontrol(int remfd, bool enable);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __APPS_INCLUDE_ZMODEM_H */
diff --git a/apps/system/Kconfig b/apps/system/Kconfig
index f683ac00a..5b36a43bf 100644
--- a/apps/system/Kconfig
+++ b/apps/system/Kconfig
@@ -46,3 +46,7 @@ endmenu
 menu "USB Monitor"
 source "$APPSDIR/system/usbmonitor/Kconfig"
 endmenu
+
+menu "Zmodem Commands"
+source "$APPSDIR/system/zmodem/Kconfig"
+endmenu
diff --git a/apps/system/Make.defs b/apps/system/Make.defs
index d27479599..337bde5a6 100644
--- a/apps/system/Make.defs
+++ b/apps/system/Make.defs
@@ -77,3 +77,7 @@ endif
 ifeq ($(CONFIG_SYSTEM_USBMONITOR),y)
 CONFIGURED_APPS += system/usbmonitor
 endif
+
+ifeq ($(CONFIG_SYSTEM_ZMODEM),y)
+CONFIGURED_APPS += system/zmodem
+endif
diff --git a/apps/system/Makefile b/apps/system/Makefile
index b998bf166..a8cb5a338 100644
--- a/apps/system/Makefile
+++ b/apps/system/Makefile
@@ -38,7 +38,7 @@
 # Sub-directories containing system task
 
 SUBDIRS  = flash_eraseall free i2c install poweroff ramtest ramtron readline
-SUBDIRS += sdcard sysinfo usbmonitor
+SUBDIRS += sdcard sysinfo usbmonitor zmodem
 
 # Create the list of installed runtime modules (INSTALLED_DIRS)
 
diff --git a/apps/system/zmodem/.gitignore b/apps/system/zmodem/.gitignore
new file mode 100644
index 000000000..fa1ec7579
--- /dev/null
+++ b/apps/system/zmodem/.gitignore
@@ -0,0 +1,11 @@
+/Make.dep
+/.depend
+/.built
+/*.asm
+/*.obj
+/*.rel
+/*.lst
+/*.sym
+/*.adb
+/*.lib
+/*.src
diff --git a/apps/system/zmodem/Kconfig b/apps/system/zmodem/Kconfig
new file mode 100644
index 000000000..570429485
--- /dev/null
+++ b/apps/system/zmodem/Kconfig
@@ -0,0 +1,104 @@
+#
+# For a description of the syntax of this configuration file,
+# see misc/tools/kconfig-language.txt.
+#
+
+config SYSTEM_ZMODEM
+	bool "Zmodem commands"
+	default n
+	---help---
+		This selection enables the 'sz' and 'rz' NSH commands.
+
+if SYSTEM_ZMODEM
+
+config SYSTEM_ZMODEM_RCVBUFSIZE
+	int "Receive buffer size"
+	default 512
+	---help---
+		The size of one buffer used to read data from the remote peer.
+
+config SYSTEM_ZMODEM_PKTBUFSIZE
+	int "Maximum packet size"
+	default 512
+	---help---
+		Data may be received in gulps of varying size and alignment.
+		Received packets data is properly packed into a packet buffer of
+		this size.
+
+config SYSTEM_ZMODEM_SNDBUFSIZE
+	int "Send buffer size"
+	default 512
+	---help---
+		The size of one transmit buffer used for composing messages sent to
+		the remote peer.
+
+config SYSTEM_ZMODEM_MOUNTPOINT
+	string "Zmodem sandbox"
+	default "/tmp"
+	---help---
+		Absolute pathes are not accepted.  This configuration value must be
+		set to provide the path to the file storage directory (such as a
+		mountpoint directory).
+
+config SYSTEM_ZMODEM_SENDSAMPLE
+	bool "Reverse channel"
+	default y
+	---help---
+		Sender can sample reverse channel
+
+config SYSTEM_ZMODEM_SENDATTN
+	bool "Attn interrupt"
+	default y
+	---help---
+		Sender can be interrupted with ATTN
+
+config SYSTEM_ZMODEM_ALWAYSSINT
+	bool "Send ZSINIT"
+	default y
+	---help---
+		Always send ZSINIT header
+
+config SYSTEM_ZMODEM_TIMESTAMPS
+	bool "File timestamps"
+	default y
+	depends on RTC
+	---help---
+		File timestamps may be supported
+
+config SYSTEM_ZMODEM_SENDATTN
+	bool "Send Attn string"
+	default n
+	---help---
+		Send attention string not yet supported
+
+config SYSTEM_ZMODEM_FULLSTREAMING
+	bool "Full streaming"
+	default n
+	---help---
+		Full streaming is not yet supported
+
+config SYSTEM_ZMODEM_SENDBRAK
+	bool "Can break"
+	default n
+	---help---
+		Can not yet send BREAK
+
+config SYSTEM_ZMODEM_RESPTIME
+	bool "Response time"
+	default 10
+	---help---
+		Response time for sender to respond to requests.
+
+config SYSTEM_ZMODEM_SERIALNO
+	int "Serial number"
+	default 0
+	---help---
+		Receiver serial number
+
+config SYSTEM_ZMODEM_MAXERRORS
+	int "Max error"
+	default 20
+	---help---
+		Max receive errors before canceling the transfer.
+
+endif
diff --git a/apps/system/zmodem/Makefile b/apps/system/zmodem/Makefile
new file mode 100644
index 000000000..f62aa818d
--- /dev/null
+++ b/apps/system/zmodem/Makefile
@@ -0,0 +1,117 @@
+############################################################################
+# apps/system/zmodem/Makefile
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/.config
+-include $(TOPDIR)/Make.defs
+include $(APPDIR)/Make.defs
+
+ifeq ($(WINTOOL),y)
+INCDIROPT	= -w
+endif
+
+# Zmodem sz and rz commands
+
+PRIORITY	= SCHED_PRIORITY_DEFAULT
+STACKSIZE	= 768
+
+ASRCS		=
+CSRCS		= sz_main.c rz_main.c
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ifeq ($(CONFIG_WINDOWS_NATIVE),y)
+  BIN		= ..\..\libapps$(LIBEXT)
+else
+ifeq ($(WINTOOL),y)
+  BIN		= ..\\..\\libapps$(LIBEXT)
+else
+  BIN		= ../../libapps$(LIBEXT)
+endif
+endif
+
+ROOTDEPPATH	= --dep-path .
+
+# Common build
+
+VPATH		= 
+
+all:	.built
+.PHONY: context depend clean distclean
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+.built: $(OBJS)
+	$(call ARCHIVE, $(BIN), $(OBJS))
+	$(Q) touch .built
+
+# Register application
+
+ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
+$(BUILTIN_REGISTRY)$(DELIM)sz.bdat: $(DEPCONFIG) Makefile
+	$(call REGISTER,"sz",$(PRIORITY),$(STACKSIZE),sz_main)
+
+$(BUILTIN_REGISTRY)$(DELIM)rz.bdat: $(DEPCONFIG) Makefile
+	$(call REGISTER,"rz",$(PRIORITY),$(STACKSIZE),rz_main)
+
+context: $(BUILTIN_REGISTRY)$(DELIM)sz.bdat $(BUILTIN_REGISTRY)$(DELIM)rz.bdat
+else
+context:
+endif
+
+# Create dependencies
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, .built)
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep
diff --git a/apps/system/zmodem/rz_main.c b/apps/system/zmodem/rz_main.c
new file mode 100644
index 000000000..752d51349
--- /dev/null
+++ b/apps/system/zmodem/rz_main.c
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * system/xmodem/rz_main.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+
+#include <apps/zmodem.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: rz_main
+ ****************************************************************************/
+
+int rz_main(int argc, char *argv[])
+{
+  printf("Not yet implemented!!\n");
+  return 0;
+}
+
diff --git a/apps/system/zmodem/sz_main.c b/apps/system/zmodem/sz_main.c
new file mode 100644
index 000000000..6f77042c1
--- /dev/null
+++ b/apps/system/zmodem/sz_main.c
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * system/xmodem/sz_main.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+
+#include <apps/zmodem.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sz_main
+ ****************************************************************************/
+
+int sz_main(int argc, char *argv[])
+{
+  printf("Not yet implemented!!\n");
+  return 0;
+}
+