diff --git a/tools/Makefile b/tools/Makefile
index f5be9bb5c44..272c6254351 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -16,6 +16,7 @@ endif
 tools-y += m4 autoconf automake bison pkg-config sed mklibs
 tools-y += sstrip ipkg-utils genext2fs mtd-utils mkimage
 tools-y += firmware-utils patch-cmdline quilt yaffs2
+tools-y += wrt350nv2-builder
 ifneq ($(CONFIG_LINUX_2_4)$(CONFIG_LINUX_2_6_21)$(CONFIG_LINUX_2_6_25)$(CONFIG_LINUX_2_6_28),)
 tools-y += squashfs lzma-old
 else
diff --git a/tools/wrt350nv2-builder/Makefile b/tools/wrt350nv2-builder/Makefile
new file mode 100644
index 00000000000..648dd84db9c
--- /dev/null
+++ b/tools/wrt350nv2-builder/Makefile
@@ -0,0 +1,33 @@
+# 
+# Copyright (C) 2006-2009 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=wrt350nv2-builder
+PKG_VERSION:=2.0
+
+HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/${PKG_NAME}-$(PKG_VERSION)
+
+include $(INCLUDE_DIR)/host-build.mk
+
+define Host/Compile
+	$(HOSTCC) $(HOST_CFLAGS) -c src/md5.c -o $(HOST_BUILD_DIR)/md5.o
+	$(HOSTCC) $(HOST_CFLAGS) -c src/ioapi.c -o $(HOST_BUILD_DIR)/ioapi.o
+	$(HOSTCC) $(HOST_CFLAGS) -c src/wrt350nv2-builder.c -o $(HOST_BUILD_DIR)/wrt350nv2-builder.o
+	$(HOSTCC) $(HOST_CFLAGS) -o $(HOST_BUILD_DIR)/wrt350nv2-builder $(HOST_BUILD_DIR)/wrt350nv2-builder.o $(HOST_BUILD_DIR)/md5.o $(HOST_BUILD_DIR)/ioapi.o
+endef
+
+define Host/Install
+	$(INSTALL_DIR) $(STAGING_DIR_HOST)/bin
+	$(INSTALL_BIN) $(HOST_BUILD_DIR)/wrt350nv2-builder $(STAGING_DIR_HOST)/bin/
+endef
+
+define Host/Clean
+	rm -f $(STAGING_DIR_HOST)/bin/wrt350nv2-builder
+endef
+
+$(eval $(call HostBuild))
diff --git a/tools/wrt350nv2-builder/src/crypt.h b/tools/wrt350nv2-builder/src/crypt.h
new file mode 100644
index 00000000000..622f4bc2ec4
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/crypt.h
@@ -0,0 +1,132 @@
+/* crypt.h -- base code for crypt/uncrypt ZIPfile
+
+
+   Version 1.01e, February 12th, 2005
+
+   Copyright (C) 1998-2005 Gilles Vollant
+
+   This code is a modified version of crypting code in Infozip distribution
+
+   The encryption/decryption parts of this source code (as opposed to the
+   non-echoing password parts) were originally written in Europe.  The
+   whole source package can be freely distributed, including from the USA.
+   (Prior to January 2000, re-export from the US was a violation of US law.)
+
+   This encryption code is a direct transcription of the algorithm from
+   Roger Schlafly, described by Phil Katz in the file appnote.txt.  This
+   file (appnote.txt) is distributed with the PKZIP program (even in the
+   version without encryption capabilities).
+
+   If you don't need crypting in your application, just define symbols
+   NOCRYPT and NOUNCRYPT.
+
+   This code support the "Traditional PKWARE Encryption".
+
+   The new AES encryption added on Zip format by Winzip (see the page
+   http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
+   Encryption is not supported.
+*/
+
+#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
+
+/***********************************************************************
+ * Return the next byte in the pseudo-random sequence
+ */
+static int decrypt_byte(unsigned long* pkeys, const unsigned long* pcrc_32_tab)
+{
+    unsigned temp;  /* POTENTIAL BUG:  temp*(temp^1) may overflow in an
+                     * unpredictable manner on 16-bit systems; not a problem
+                     * with any known compiler so far, though */
+
+    temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
+    return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
+}
+
+/***********************************************************************
+ * Update the encryption keys with the next byte of plain text
+ */
+static int update_keys(unsigned long* pkeys,const unsigned long* pcrc_32_tab,int c)
+{
+    (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
+    (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
+    (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
+    {
+      register int keyshift = (int)((*(pkeys+1)) >> 24);
+      (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
+    }
+    return c;
+}
+
+
+/***********************************************************************
+ * Initialize the encryption keys and the random header according to
+ * the given password.
+ */
+static void init_keys(const char* passwd,unsigned long* pkeys,const unsigned long* pcrc_32_tab)
+{
+    *(pkeys+0) = 305419896L;
+    *(pkeys+1) = 591751049L;
+    *(pkeys+2) = 878082192L;
+    while (*passwd != '\0') {
+        update_keys(pkeys,pcrc_32_tab,(int)*passwd);
+        passwd++;
+    }
+}
+
+#define zdecode(pkeys,pcrc_32_tab,c) \
+    (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
+
+#define zencode(pkeys,pcrc_32_tab,c,t) \
+    (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
+
+#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
+
+#define RAND_HEAD_LEN  12
+   /* "last resort" source for second part of crypt seed pattern */
+#  ifndef ZCR_SEED2
+#    define ZCR_SEED2 3141592654UL     /* use PI as default pattern */
+#  endif
+
+static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
+    const char *passwd;         /* password string */
+    unsigned char *buf;         /* where to write header */
+    int bufSize;
+    unsigned long* pkeys;
+    const unsigned long* pcrc_32_tab;
+    unsigned long crcForCrypting;
+{
+    int n;                       /* index in random header */
+    int t;                       /* temporary */
+    int c;                       /* random byte */
+    unsigned char header[RAND_HEAD_LEN-2]; /* random header */
+    static unsigned calls = 0;   /* ensure different random header each time */
+
+    if (bufSize<RAND_HEAD_LEN)
+      return 0;
+
+    /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
+     * output of rand() to get less predictability, since rand() is
+     * often poorly implemented.
+     */
+    if (++calls == 1)
+    {
+        srand((unsigned)(time(NULL) ^ ZCR_SEED2));
+    }
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        c = (rand() >> 7) & 0xff;
+        header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
+    }
+    /* Encrypt random header (last two bytes is high word of crc) */
+    init_keys(passwd, pkeys, pcrc_32_tab);
+    for (n = 0; n < RAND_HEAD_LEN-2; n++)
+    {
+        buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
+    }
+    buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
+    buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
+    return n;
+}
+
+#endif
diff --git a/tools/wrt350nv2-builder/src/ioapi.c b/tools/wrt350nv2-builder/src/ioapi.c
new file mode 100644
index 00000000000..f1bee23e64b
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/ioapi.c
@@ -0,0 +1,177 @@
+/* ioapi.c -- IO base function header for compress/uncompress .zip
+   files using zlib + zip or unzip API
+
+   Version 1.01e, February 12th, 2005
+
+   Copyright (C) 1998-2005 Gilles Vollant
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "zlib.h"
+#include "ioapi.h"
+
+
+
+/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
+
+#ifndef SEEK_CUR
+#define SEEK_CUR    1
+#endif
+
+#ifndef SEEK_END
+#define SEEK_END    2
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET    0
+#endif
+
+voidpf ZCALLBACK fopen_file_func OF((
+   voidpf opaque,
+   const char* filename,
+   int mode));
+
+uLong ZCALLBACK fread_file_func OF((
+   voidpf opaque,
+   voidpf stream,
+   void* buf,
+   uLong size));
+
+uLong ZCALLBACK fwrite_file_func OF((
+   voidpf opaque,
+   voidpf stream,
+   const void* buf,
+   uLong size));
+
+long ZCALLBACK ftell_file_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+long ZCALLBACK fseek_file_func OF((
+   voidpf opaque,
+   voidpf stream,
+   uLong offset,
+   int origin));
+
+int ZCALLBACK fclose_file_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+int ZCALLBACK ferror_file_func OF((
+   voidpf opaque,
+   voidpf stream));
+
+
+voidpf ZCALLBACK fopen_file_func (opaque, filename, mode)
+   voidpf opaque;
+   const char* filename;
+   int mode;
+{
+    FILE* file = NULL;
+    const char* mode_fopen = NULL;
+    if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+        mode_fopen = "rb";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+        mode_fopen = "r+b";
+    else
+    if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+        mode_fopen = "wb";
+
+    if ((filename!=NULL) && (mode_fopen != NULL))
+        file = fopen(filename, mode_fopen);
+    return file;
+}
+
+
+uLong ZCALLBACK fread_file_func (opaque, stream, buf, size)
+   voidpf opaque;
+   voidpf stream;
+   void* buf;
+   uLong size;
+{
+    uLong ret;
+    ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+
+uLong ZCALLBACK fwrite_file_func (opaque, stream, buf, size)
+   voidpf opaque;
+   voidpf stream;
+   const void* buf;
+   uLong size;
+{
+    uLong ret;
+    ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+    return ret;
+}
+
+long ZCALLBACK ftell_file_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    long ret;
+    ret = ftell((FILE *)stream);
+    return ret;
+}
+
+long ZCALLBACK fseek_file_func (opaque, stream, offset, origin)
+   voidpf opaque;
+   voidpf stream;
+   uLong offset;
+   int origin;
+{
+    int fseek_origin=0;
+    long ret;
+    switch (origin)
+    {
+    case ZLIB_FILEFUNC_SEEK_CUR :
+        fseek_origin = SEEK_CUR;
+        break;
+    case ZLIB_FILEFUNC_SEEK_END :
+        fseek_origin = SEEK_END;
+        break;
+    case ZLIB_FILEFUNC_SEEK_SET :
+        fseek_origin = SEEK_SET;
+        break;
+    default: return -1;
+    }
+    ret = 0;
+    fseek((FILE *)stream, offset, fseek_origin);
+    return ret;
+}
+
+int ZCALLBACK fclose_file_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    int ret;
+    ret = fclose((FILE *)stream);
+    return ret;
+}
+
+int ZCALLBACK ferror_file_func (opaque, stream)
+   voidpf opaque;
+   voidpf stream;
+{
+    int ret;
+    ret = ferror((FILE *)stream);
+    return ret;
+}
+
+void fill_fopen_filefunc (pzlib_filefunc_def)
+  zlib_filefunc_def* pzlib_filefunc_def;
+{
+    pzlib_filefunc_def->zopen_file = fopen_file_func;
+    pzlib_filefunc_def->zread_file = fread_file_func;
+    pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+    pzlib_filefunc_def->ztell_file = ftell_file_func;
+    pzlib_filefunc_def->zseek_file = fseek_file_func;
+    pzlib_filefunc_def->zclose_file = fclose_file_func;
+    pzlib_filefunc_def->zerror_file = ferror_file_func;
+    pzlib_filefunc_def->opaque = NULL;
+}
diff --git a/tools/wrt350nv2-builder/src/ioapi.h b/tools/wrt350nv2-builder/src/ioapi.h
new file mode 100644
index 00000000000..7d457baab34
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/ioapi.h
@@ -0,0 +1,75 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   files using zlib + zip or unzip API
+
+   Version 1.01e, February 12th, 2005
+
+   Copyright (C) 1998-2005 Gilles Vollant
+*/
+
+#ifndef _ZLIBIOAPI_H
+#define _ZLIBIOAPI_H
+
+
+#define ZLIB_FILEFUNC_SEEK_CUR (1)
+#define ZLIB_FILEFUNC_SEEK_END (2)
+#define ZLIB_FILEFUNC_SEEK_SET (0)
+
+#define ZLIB_FILEFUNC_MODE_READ      (1)
+#define ZLIB_FILEFUNC_MODE_WRITE     (2)
+#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
+
+#define ZLIB_FILEFUNC_MODE_EXISTING (4)
+#define ZLIB_FILEFUNC_MODE_CREATE   (8)
+
+
+#ifndef ZCALLBACK
+
+#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
+#define ZCALLBACK CALLBACK
+#else
+#define ZCALLBACK
+#endif
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
+typedef uLong  (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+typedef uLong  (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
+typedef long   (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
+typedef long   (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
+typedef int    (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
+typedef int    (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
+
+typedef struct zlib_filefunc_def_s
+{
+    open_file_func      zopen_file;
+    read_file_func      zread_file;
+    write_file_func     zwrite_file;
+    tell_file_func      ztell_file;
+    seek_file_func      zseek_file;
+    close_file_func     zclose_file;
+    testerror_file_func zerror_file;
+    voidpf              opaque;
+} zlib_filefunc_def;
+
+
+
+void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
+
+#define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
+#define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
+#define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
+#define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
+#define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
+#define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/tools/wrt350nv2-builder/src/md5.c b/tools/wrt350nv2-builder/src/md5.c
new file mode 100644
index 00000000000..c35d96c5ef5
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/md5.c
@@ -0,0 +1,381 @@
+/*
+  Copyright (C) 1999, 2000, 2002 Aladdin Enterprises.  All rights reserved.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  L. Peter Deutsch
+  ghost@aladdin.com
+
+ */
+/* $Id: md5.c,v 1.6 2002/04/13 19:20:28 lpd Exp $ */
+/*
+  Independent implementation of MD5 (RFC 1321).
+
+  This code implements the MD5 Algorithm defined in RFC 1321, whose
+  text is available at
+	http://www.ietf.org/rfc/rfc1321.txt
+  The code is derived from the text of the RFC, including the test suite
+  (section A.5) but excluding the rest of Appendix A.  It does not include
+  any code or documentation that is identified in the RFC as being
+  copyrighted.
+
+  The original and principal author of md5.c is L. Peter Deutsch
+  <ghost@aladdin.com>.  Other authors are noted in the change history
+  that follows (in reverse chronological order):
+
+  2002-04-13 lpd Clarified derivation from RFC 1321; now handles byte order
+	either statically or dynamically; added missing #include <string.h>
+	in library.
+  2002-03-11 lpd Corrected argument list for main(), and added int return
+	type, in test program and T value program.
+  2002-02-21 lpd Added missing #include <stdio.h> in test program.
+  2000-07-03 lpd Patched to eliminate warnings about "constant is
+	unsigned in ANSI C, signed in traditional"; made test program
+	self-checking.
+  1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+  1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
+  1999-05-03 lpd Original version.
+ */
+
+#include "md5.h"
+#include <string.h>
+
+#undef BYTE_ORDER	/* 1 = big-endian, -1 = little-endian, 0 = unknown */
+#ifdef ARCH_IS_BIG_ENDIAN
+#  define BYTE_ORDER (ARCH_IS_BIG_ENDIAN ? 1 : -1)
+#else
+#  define BYTE_ORDER 0
+#endif
+
+#define T_MASK ((md5_word_t)~0)
+#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
+#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
+#define T3    0x242070db
+#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
+#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
+#define T6    0x4787c62a
+#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
+#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
+#define T9    0x698098d8
+#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
+#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
+#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
+#define T13    0x6b901122
+#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
+#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
+#define T16    0x49b40821
+#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
+#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
+#define T19    0x265e5a51
+#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
+#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
+#define T22    0x02441453
+#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
+#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
+#define T25    0x21e1cde6
+#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
+#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
+#define T28    0x455a14ed
+#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
+#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
+#define T31    0x676f02d9
+#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
+#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
+#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
+#define T35    0x6d9d6122
+#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
+#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
+#define T38    0x4bdecfa9
+#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
+#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
+#define T41    0x289b7ec6
+#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
+#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
+#define T44    0x04881d05
+#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
+#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
+#define T47    0x1fa27cf8
+#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
+#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
+#define T50    0x432aff97
+#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
+#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
+#define T53    0x655b59c3
+#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
+#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
+#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
+#define T57    0x6fa87e4f
+#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
+#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
+#define T60    0x4e0811a1
+#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
+#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
+#define T63    0x2ad7d2bb
+#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
+
+
+static void
+md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)
+{
+    md5_word_t
+	a = pms->abcd[0], b = pms->abcd[1],
+	c = pms->abcd[2], d = pms->abcd[3];
+    md5_word_t t;
+#if BYTE_ORDER > 0
+    /* Define storage only for big-endian CPUs. */
+    md5_word_t X[16];
+#else
+    /* Define storage for little-endian or both types of CPUs. */
+    md5_word_t xbuf[16];
+    const md5_word_t *X;
+#endif
+
+    {
+#if BYTE_ORDER == 0
+	/*
+	 * Determine dynamically whether this is a big-endian or
+	 * little-endian machine, since we can use a more efficient
+	 * algorithm on the latter.
+	 */
+	static const int w = 1;
+
+	if (*((const md5_byte_t *)&w)) /* dynamic little-endian */
+#endif
+#if BYTE_ORDER <= 0		/* little-endian */
+	{
+	    /*
+	     * On little-endian machines, we can process properly aligned
+	     * data without copying it.
+	     */
+	    if (!((data - (const md5_byte_t *)0) & 3)) {
+		/* data are properly aligned */
+		X = (const md5_word_t *)data;
+	    } else {
+		/* not aligned */
+		memcpy(xbuf, data, 64);
+		X = xbuf;
+	    }
+	}
+#endif
+#if BYTE_ORDER == 0
+	else			/* dynamic big-endian */
+#endif
+#if BYTE_ORDER >= 0		/* big-endian */
+	{
+	    /*
+	     * On big-endian machines, we must arrange the bytes in the
+	     * right order.
+	     */
+	    const md5_byte_t *xp = data;
+	    int i;
+
+#  if BYTE_ORDER == 0
+	    X = xbuf;		/* (dynamic only) */
+#  else
+#    define xbuf X		/* (static only) */
+#  endif
+	    for (i = 0; i < 16; ++i, xp += 4)
+		xbuf[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
+	}
+#endif
+    }
+
+#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
+
+    /* Round 1. */
+    /* Let [abcd k s i] denote the operation
+       a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
+#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
+#define SET(a, b, c, d, k, s, Ti)\
+  t = a + F(b,c,d) + X[k] + Ti;\
+  a = ROTATE_LEFT(t, s) + b
+    /* Do the following 16 operations. */
+    SET(a, b, c, d,  0,  7,  T1);
+    SET(d, a, b, c,  1, 12,  T2);
+    SET(c, d, a, b,  2, 17,  T3);
+    SET(b, c, d, a,  3, 22,  T4);
+    SET(a, b, c, d,  4,  7,  T5);
+    SET(d, a, b, c,  5, 12,  T6);
+    SET(c, d, a, b,  6, 17,  T7);
+    SET(b, c, d, a,  7, 22,  T8);
+    SET(a, b, c, d,  8,  7,  T9);
+    SET(d, a, b, c,  9, 12, T10);
+    SET(c, d, a, b, 10, 17, T11);
+    SET(b, c, d, a, 11, 22, T12);
+    SET(a, b, c, d, 12,  7, T13);
+    SET(d, a, b, c, 13, 12, T14);
+    SET(c, d, a, b, 14, 17, T15);
+    SET(b, c, d, a, 15, 22, T16);
+#undef SET
+
+     /* Round 2. */
+     /* Let [abcd k s i] denote the operation
+          a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
+#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+  t = a + G(b,c,d) + X[k] + Ti;\
+  a = ROTATE_LEFT(t, s) + b
+     /* Do the following 16 operations. */
+    SET(a, b, c, d,  1,  5, T17);
+    SET(d, a, b, c,  6,  9, T18);
+    SET(c, d, a, b, 11, 14, T19);
+    SET(b, c, d, a,  0, 20, T20);
+    SET(a, b, c, d,  5,  5, T21);
+    SET(d, a, b, c, 10,  9, T22);
+    SET(c, d, a, b, 15, 14, T23);
+    SET(b, c, d, a,  4, 20, T24);
+    SET(a, b, c, d,  9,  5, T25);
+    SET(d, a, b, c, 14,  9, T26);
+    SET(c, d, a, b,  3, 14, T27);
+    SET(b, c, d, a,  8, 20, T28);
+    SET(a, b, c, d, 13,  5, T29);
+    SET(d, a, b, c,  2,  9, T30);
+    SET(c, d, a, b,  7, 14, T31);
+    SET(b, c, d, a, 12, 20, T32);
+#undef SET
+
+     /* Round 3. */
+     /* Let [abcd k s t] denote the operation
+          a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
+#define H(x, y, z) ((x) ^ (y) ^ (z))
+#define SET(a, b, c, d, k, s, Ti)\
+  t = a + H(b,c,d) + X[k] + Ti;\
+  a = ROTATE_LEFT(t, s) + b
+     /* Do the following 16 operations. */
+    SET(a, b, c, d,  5,  4, T33);
+    SET(d, a, b, c,  8, 11, T34);
+    SET(c, d, a, b, 11, 16, T35);
+    SET(b, c, d, a, 14, 23, T36);
+    SET(a, b, c, d,  1,  4, T37);
+    SET(d, a, b, c,  4, 11, T38);
+    SET(c, d, a, b,  7, 16, T39);
+    SET(b, c, d, a, 10, 23, T40);
+    SET(a, b, c, d, 13,  4, T41);
+    SET(d, a, b, c,  0, 11, T42);
+    SET(c, d, a, b,  3, 16, T43);
+    SET(b, c, d, a,  6, 23, T44);
+    SET(a, b, c, d,  9,  4, T45);
+    SET(d, a, b, c, 12, 11, T46);
+    SET(c, d, a, b, 15, 16, T47);
+    SET(b, c, d, a,  2, 23, T48);
+#undef SET
+
+     /* Round 4. */
+     /* Let [abcd k s t] denote the operation
+          a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
+#define I(x, y, z) ((y) ^ ((x) | ~(z)))
+#define SET(a, b, c, d, k, s, Ti)\
+  t = a + I(b,c,d) + X[k] + Ti;\
+  a = ROTATE_LEFT(t, s) + b
+     /* Do the following 16 operations. */
+    SET(a, b, c, d,  0,  6, T49);
+    SET(d, a, b, c,  7, 10, T50);
+    SET(c, d, a, b, 14, 15, T51);
+    SET(b, c, d, a,  5, 21, T52);
+    SET(a, b, c, d, 12,  6, T53);
+    SET(d, a, b, c,  3, 10, T54);
+    SET(c, d, a, b, 10, 15, T55);
+    SET(b, c, d, a,  1, 21, T56);
+    SET(a, b, c, d,  8,  6, T57);
+    SET(d, a, b, c, 15, 10, T58);
+    SET(c, d, a, b,  6, 15, T59);
+    SET(b, c, d, a, 13, 21, T60);
+    SET(a, b, c, d,  4,  6, T61);
+    SET(d, a, b, c, 11, 10, T62);
+    SET(c, d, a, b,  2, 15, T63);
+    SET(b, c, d, a,  9, 21, T64);
+#undef SET
+
+     /* Then perform the following additions. (That is increment each
+        of the four registers by the value it had before this block
+        was started.) */
+    pms->abcd[0] += a;
+    pms->abcd[1] += b;
+    pms->abcd[2] += c;
+    pms->abcd[3] += d;
+}
+
+void
+md5_init(md5_state_t *pms)
+{
+    pms->count[0] = pms->count[1] = 0;
+    pms->abcd[0] = 0x67452301;
+    pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
+    pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
+    pms->abcd[3] = 0x10325476;
+}
+
+void
+md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
+{
+    const md5_byte_t *p = data;
+    int left = nbytes;
+    int offset = (pms->count[0] >> 3) & 63;
+    md5_word_t nbits = (md5_word_t)(nbytes << 3);
+
+    if (nbytes <= 0)
+	return;
+
+    /* Update the message length. */
+    pms->count[1] += nbytes >> 29;
+    pms->count[0] += nbits;
+    if (pms->count[0] < nbits)
+	pms->count[1]++;
+
+    /* Process an initial partial block. */
+    if (offset) {
+	int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
+
+	memcpy(pms->buf + offset, p, copy);
+	if (offset + copy < 64)
+	    return;
+	p += copy;
+	left -= copy;
+	md5_process(pms, pms->buf);
+    }
+
+    /* Process full blocks. */
+    for (; left >= 64; p += 64, left -= 64)
+	md5_process(pms, p);
+
+    /* Process a final partial block. */
+    if (left)
+	memcpy(pms->buf, p, left);
+}
+
+void
+md5_finish(md5_state_t *pms, md5_byte_t digest[16])
+{
+    static const md5_byte_t pad[64] = {
+	0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    };
+    md5_byte_t data[8];
+    int i;
+
+    /* Save the length before padding. */
+    for (i = 0; i < 8; ++i)
+	data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
+    /* Pad to 56 bytes mod 64. */
+    md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
+    /* Append the length. */
+    md5_append(pms, data, 8);
+    for (i = 0; i < 16; ++i)
+	digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
+}
diff --git a/tools/wrt350nv2-builder/src/md5.h b/tools/wrt350nv2-builder/src/md5.h
new file mode 100644
index 00000000000..698c995d8f4
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/md5.h
@@ -0,0 +1,91 @@
+/*
+  Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+  L. Peter Deutsch
+  ghost@aladdin.com
+
+ */
+/* $Id: md5.h,v 1.4 2002/04/13 19:20:28 lpd Exp $ */
+/*
+  Independent implementation of MD5 (RFC 1321).
+
+  This code implements the MD5 Algorithm defined in RFC 1321, whose
+  text is available at
+	http://www.ietf.org/rfc/rfc1321.txt
+  The code is derived from the text of the RFC, including the test suite
+  (section A.5) but excluding the rest of Appendix A.  It does not include
+  any code or documentation that is identified in the RFC as being
+  copyrighted.
+
+  The original and principal author of md5.h is L. Peter Deutsch
+  <ghost@aladdin.com>.  Other authors are noted in the change history
+  that follows (in reverse chronological order):
+
+  2002-04-13 lpd Removed support for non-ANSI compilers; removed
+	references to Ghostscript; clarified derivation from RFC 1321;
+	now handles byte order either statically or dynamically.
+  1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+  1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
+	added conditionalization for C++ compilation from Martin
+	Purschke <purschke@bnl.gov>.
+  1999-05-03 lpd Original version.
+ */
+
+#ifndef md5_INCLUDED
+#  define md5_INCLUDED
+
+/*
+ * This package supports both compile-time and run-time determination of CPU
+ * byte order.  If ARCH_IS_BIG_ENDIAN is defined as 0, the code will be
+ * compiled to run only on little-endian CPUs; if ARCH_IS_BIG_ENDIAN is
+ * defined as non-zero, the code will be compiled to run only on big-endian
+ * CPUs; if ARCH_IS_BIG_ENDIAN is not defined, the code will be compiled to
+ * run on either big- or little-endian CPUs, but will run slightly less
+ * efficiently on either one than if ARCH_IS_BIG_ENDIAN is defined.
+ */
+
+typedef unsigned char md5_byte_t; /* 8-bit byte */
+typedef unsigned int md5_word_t; /* 32-bit word */
+
+/* Define the state of the MD5 Algorithm. */
+typedef struct md5_state_s {
+    md5_word_t count[2];	/* message length in bits, lsw first */
+    md5_word_t abcd[4];		/* digest buffer */
+    md5_byte_t buf[64];		/* accumulate block */
+} md5_state_t;
+
+#ifdef __cplusplus
+extern "C" 
+{
+#endif
+
+/* Initialize the algorithm. */
+void md5_init(md5_state_t *pms);
+
+/* Append a string to the message. */
+void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
+
+/* Finish the message and return the digest. */
+void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
+
+#ifdef __cplusplus
+}  /* end extern "C" */
+#endif
+
+#endif /* md5_INCLUDED */
diff --git a/tools/wrt350nv2-builder/src/upgrade.h b/tools/wrt350nv2-builder/src/upgrade.h
new file mode 100644
index 00000000000..2b5953acc8e
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/upgrade.h
@@ -0,0 +1,77 @@
+#ifndef _UPGRADE_H_
+#define _UPGRADE_H_
+
+#define FLASH_END_ADDR       0xffffffff 
+#define FLASH_ADDR_BASE      0xff800000
+#define BOOT_ADDR_BASE			 0xfffc0000
+#define BOOT_ADDR_BASE_OFF   0x7c0000
+#define FLASH_SIZE           0x800000
+#define BOOT_SIZE            0x40000
+//NVRAM in boot area
+//#define NVRAM_ADDR_BASE      0xfff90000
+//#define NVRAM_ADDR_BASE_OFF  0x790000
+//#define NVRAM_SIZE           0x10000
+
+#define PID_OFFSET         (BOOT_SIZE- 0x46)
+#define NODE_ADDRESS       (BOOT_SIZE-0x60)
+#define NODE_BASE_OFF   (FLASH_SIZE-0x60)
+#define PIN_ADDRESS         (BOOT_SIZE-0x70)//WPS PIN,8bytes
+#define PIN_OFF 				(FLASH_SIZE-0x70)
+#define KERNEL_CODE_OFFSET      0         
+#define SN_ADDRESS (BOOT_SIZE-0x80) //12bytes
+#define SN_OFF (FLASH_SIZE-0x80)
+
+
+#define UPGRADE_START_OFFSET  0
+#define UPGRADE_END_OFFSET    0x7A0000
+#define PRODUCT_ID_OFFSET     0x75ffe0//(UPGRADE_END_OFFSET  - 0x10)
+#define PROTOCOL_ID_OFFSET   (PRODUCT_ID_OFFSET + 0x02)
+#define FW_VERSION_OFFSET    (PRODUCT_ID_OFFSET + 0x04)
+#define SIGN_OFFSET          (PRODUCT_ID_OFFSET + 0x08)   /* eRcOmM */
+
+//#define LANG_UPGRADE
+#ifdef LANG_UPGRADE
+#define LANGBUF_BEGIN   0x1300000
+#define LANGBUF_END     0x1f00000
+#define LANGBUF_LENTH   (LANGBUF_END - LANGBUF_BEGIN)
+#endif
+#ifndef ERROR
+#define ERROR -1
+#endif
+
+#ifndef OK
+#define OK 0
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+
+void do_boot(void);
+void Download(void);
+void Assign(void);
+
+void gpio_init(void);
+void Led_Power(int value);
+void Led_security(int value);
+int PushButton(void);
+
+static unsigned short xchg ( unsigned short dwData);
+int FlashDriver(unsigned long dlAddress,unsigned char *dbData,unsigned long dlLength,unsigned long dlFlag);
+int ProgramChip(unsigned long dlAddress,unsigned char * dbData,unsigned long dlLength);
+int dl_Initialize(void);
+void dl_GetAddr(unsigned char *node);
+int dl_Receive(void);
+int dl_Transmit(char *buf,int len);
+void reset(void);
+void AssignHWAddress(unsigned char *psBuffer);
+int ResetChip(unsigned long ulRomDstAddr);
+int GetFlashType(void);
+
+#ifdef LANG_UPGRADE
+int save_lang_buf(unsigned long flash_addr, char *mem_addr,unsigned long length);
+int LangDriver(unsigned long flash_addr, char *mem_addr,unsigned long length, unsigned long dlFlag);
+#endif 
+#endif
+
diff --git a/tools/wrt350nv2-builder/src/wrt350nv2-builder.c b/tools/wrt350nv2-builder/src/wrt350nv2-builder.c
new file mode 100644
index 00000000000..9bc00066bac
--- /dev/null
+++ b/tools/wrt350nv2-builder/src/wrt350nv2-builder.c
@@ -0,0 +1,1044 @@
+/*
+
+	WRT350Nv2-Builder 2.0 (previously called buildimg)
+	Copyright (C) 2008-2009 Dirk Teurlings <info@upexia.nl>
+	Copyright (C) 2009      Matthias Buecher (http://www.maddes.net/)
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with this program; if not, write to the Free Software
+	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+	A lot of thanks to Kaloz and juhosg from OpenWRT and Lennert Buytenhek from
+	marvell for helping me figure this one out. This code is based on bash
+	scripts wrote by Peter van Valderen so the real credit should go to him.
+
+	This program reads the provided parameter file and creates an image which can
+	be used to flash a Linksys WRT350N v2 from stock firmware.
+	The trick is to fill unused space in the bin file with random, so that the
+	resulting zip file passes the size check of the stock firmware.
+
+	The parameter file layout for an original Linksys firmware:
+		:kernel	0x001A0000	/path/to/uImage
+		:rootfs	0	/path/to/root.squashfs
+		:u-boot	0	/path/to/u-boot.bin
+
+	args:
+		1	wrt350nv2.par		parameter file describing the image layout
+		2	wrt350nv2.img		output file for linksys style image
+
+	An u-boot image inside the bin file is not necessary.
+	The version is not important.
+	The name of the bin file is not important.
+
+	Linksys assumes that no mtd will be used to its maximum, so the last 16 bytes
+	of the mtd are abused to define the length of the next mtd content (4 bytes for
+	size + 12 pad bytes).
+
+	At the end of "rootfs" additional 16 bytes are abused for some data and an
+	highly important eRcOmM identifier, so the last 32 bytes of "rootfs" are abused.
+
+	At the end of "u-boot" 128 bytes are abused for some data, a checksum and an
+	highly important sErCoMm identifier.
+
+
+	This program uses a special GNU scanf modifier to allocate
+	sufficient memory for a strings with unknown length.
+	See http://www.kernel.org/doc/man-pages/online/pages/man3/scanf.3.html#NOTES
+
+
+	To extract everything from a Linksys style firmware image see
+	https://forum.openwrt.org/viewtopic.php?pid=92928#p92928
+
+*/
+
+// ToDo:
+// * Has NODE to be added to bin file *after* creating checksum byte?
+
+// includes
+#define _GNU_SOURCE	// for GNU's basename()
+#include <assert.h>
+#include <errno.h>	// errno
+#include <stdarg.h>
+#include <stdio.h>	// fopen(), fread(), fclose(), etc.
+#include <stdlib.h>	// system(), etc.
+#include <string.h>	// basename(), strerror(), strdup(), etc.
+#include <unistd.h>	// optopt(), access(), etc.
+#include <sys/wait.h>	// WEXITSTATUS, etc.
+
+// custom includes
+#include "md5.h"	// MD5 routines
+#include "upgrade.h"	// Linksys definitions from firmware 2.0.19
+
+
+// version info
+#define VERSION "2.0"
+char program_info[] = "WRT350Nv2-Builder v%s by Dirk Teurlings <info@upexia.nl> and Matthias Buecher (http://www.maddes.net/)\n";
+
+// verbosity
+#define DEBUG 1
+#define DEBUG_LVL2 2
+int verbosity = 0;
+
+// mtd info
+typedef struct {
+	char *name;
+	int offset;
+	int size;
+	char *filename;
+	long int filesize;
+	unsigned char magic[2];
+} mtd_info;
+
+mtd_info mtd_kernel = { "kernel", 0, 0, NULL, 0L, { 0, 0 } };
+mtd_info mtd_rootfs = { "rootfs", 0, 0, NULL, 0L, { 0, 0 } };
+mtd_info mtd_uboot = { "u-boot", 0, 0, NULL, 0L, { 0, 0 } };
+
+#define ROOTFS_END_OFFSET	0x00760000
+#define ROOTFS_MIN_OFFSET	0x00700000	// should be filled up to here, to make sure that the zip file is big enough to pass the size check of the stock firmware
+
+// rootfs statics via: hexdump -v -e '1/1 "0x%02X, "' -s 0x0075FFE0 -n 16 "wrt350n.bin" ; echo -en "\n"
+unsigned char product_id[] = { 0x00, 0x03 };	// seems to be a fixed value
+unsigned char protocol_id[] = { 0x00, 0x00 };	// seems to be a fixed value
+unsigned char fw_version[] = { 0x20, 0x19 };
+unsigned char rootfs_unknown[] = { 0x90, 0xF7 };	// seems to be a fixed value
+unsigned char sign[] = { 0x65, 0x52, 0x63, 0x4F, 0x6D, 0x4D, 0x00, 0x00 };	// eRcOmM
+
+// u-boot statics via: hexdump -v -e '1/1 "0x%02X, "' -s 0x007FFF80 -n 128 "wrt350n.bin" ; echo -en "\n"
+//unsigned char sn[]   = {	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };	// (12) seems to be an unused value
+//unsigned char pin[]  = {	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };	// (8) seems to be an unused value
+//unsigned char node[] = {	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,	// (25) seems to be an unused value
+//				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+//unsigned char checksum[] = { 0xE9 };	// (1) is calculated, does it belong to node?
+unsigned char pid[] = {	0x73, 0x45, 0x72, 0x43, 0x6F, 0x4D, 0x6D, 0x00, 0x01, 0x00, 0x00, 0x59, 0x42, 0x50, 0x00, 0x01,	// (70) seems to be a fixed value, except for fw version
+				0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,	// protocol id?
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00,	// protocol id?
+				0x12, 0x34,	// firmware version, same as in rootfs
+				0x00, 0x00, 0x00, 0x04,
+				0x73, 0x45, 0x72, 0x43, 0x6F, 0x4D, 0x6D };	// sErCoMm
+
+// img statics via: hexdump -v -e '1/1 "0x%02X, "' -s 0 -n 512 "WRT350N-EU-ETSI-2.00.19.img" ; echo -en "\n"
+unsigned char img_hdr[] = {	0x00, 0x01, 0x00, 0x00, 0x59, 0x42, 0x50, 0x00, 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
+				0x00, 0x00,
+				0x12, 0x34,	// firmware version, same as in rootfs
+				0x00, 0x00, 0x00, 0x04, 0x61, 0x44, 0x6D, 0x42, 0x6C, 0x4B, 0x3D, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+				0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,	// md5 checksum
+				0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+unsigned char img_eof[] = {	0xFF };
+
+
+void lprintf(int outputlevel, char *fmt, ...) {
+	va_list argp;
+	if (outputlevel <= verbosity) {
+		va_start(argp, fmt);
+		vprintf(fmt, argp);
+		va_end(argp);
+	}
+}
+
+
+int parse_par_file(FILE *f_par) {
+	int exitcode = 0;
+
+	char *buffer;
+	size_t buffer_size;
+	char *line;
+
+	int lineno;
+	int count;
+
+	char *string1;
+	char *string2;
+	int value;
+
+	mtd_info *mtd;
+	FILE *f_in;
+	int f_exitcode = 0;
+
+	// read all lines
+	buffer_size = 1000;
+	buffer = NULL;
+	lineno = 0;
+	while (!feof(f_par)) {
+		// read next line into memory
+		do {
+			// allocate memory for input line
+			if (buffer == NULL) {
+				buffer = malloc(buffer_size);
+			}
+			if (buffer == NULL) {
+				exitcode = 1;
+				printf("parse_par_file: can not allocate %i bytes\n", buffer_size);
+				break;
+			}
+
+			line = fgets(buffer, buffer_size, f_par);
+			if (line == NULL) {
+				exitcode = ferror(f_par);
+				if (exitcode) {
+					printf("parse_par_file: %s\n", strerror(exitcode));
+				}
+				break;
+			}
+
+			// if buffer was not completely filled, then assume that line is complete
+			count = strlen(buffer) + 1;
+			if (count-- < buffer_size) {
+				break;
+			}
+
+			// otherwise....
+
+			// reset file position to line start
+			value = fseek(f_par, -count, SEEK_CUR);
+			if (value == -1) {
+				exitcode = errno;
+				printf("parse_par_file: %s\n", strerror(exitcode));
+				break;
+			}
+
+			// double buffer size
+			free(buffer);
+			buffer = NULL;
+			buffer_size *= 2;
+			lprintf(DEBUG_LVL2, " extending buffer to %i bytes\n", buffer_size);
+		} while (1);
+		if (line == NULL || exitcode) {
+			break;
+		}
+
+		lineno++;	// increase line number
+
+		lprintf(DEBUG_LVL2, " line %i (%i) %s", lineno, count, line);
+
+		string1 = NULL;
+		string2 = NULL;
+		value = 0;
+		mtd = NULL;
+
+		// split line if starting with a colon
+		switch (line[0]) {
+			case ':':
+				count = sscanf(line, ":%ms %i %ms", &string1, &value, &string2);
+				if (count != 3) {
+					printf("line %i does not meet defined format (:<mtdname> <mtdsize> <file>)\n", lineno);
+				} else {
+					// populate mtd_info if supported mtd names
+					if (strcmp(string1, mtd_kernel.name) == 0) {
+						mtd = &mtd_kernel;
+					} else if (strcmp(string1, mtd_rootfs.name) == 0) {
+						mtd = &mtd_rootfs;
+					} else if (strcmp(string1, mtd_uboot.name) == 0) {
+						mtd = &mtd_uboot;
+					}
+
+					if (mtd == NULL) {
+						printf("unknown mtd %s in line %i\n", string1, lineno);
+					} else if (mtd->filename != NULL) {
+						f_exitcode = 1;
+						printf("mtd %s in line %i multiple definitions\n", string1, lineno);
+					} else {
+						mtd->size = value;
+						mtd->filename = string2;
+						string2 = NULL;	// do not free
+
+						// Get file size
+						f_in = fopen(mtd->filename, "rb");
+						if (f_in == NULL) {
+							f_exitcode = errno;
+							printf("input file %s: %s\n", mtd->filename, strerror(f_exitcode));
+						} else {
+							value = fread(&mtd->magic, 1, 2, f_in);
+							if (value < 2) {
+								if (ferror(f_in)) {
+									f_exitcode = ferror(f_in);
+									printf("input file %s: %s\n", mtd->filename, strerror(f_exitcode));
+								} else {
+									f_exitcode = 1;
+									printf("input file %s: smaller than two bytes, no magic code\n", mtd->filename);
+								}
+							}
+
+							value = fseek(f_in, 0, SEEK_END);
+							if (value == -1) {
+								f_exitcode = errno;
+								printf("input file %s: %s\n", mtd->filename, strerror(f_exitcode));
+							} else {
+								mtd->filesize = ftell(f_in);
+								if (mtd->filesize == -1) {
+									f_exitcode = errno;
+									printf("input file %s: %s\n", mtd->filename, strerror(f_exitcode));
+								}
+							}
+
+							fclose(f_in);
+						}
+
+						lprintf(DEBUG, "mtd %s in line %i: size=0x%08X, filesize=0x%08lX, magic=0x%02X%02X, file=%s\n", mtd->name, lineno, mtd->size, mtd->filesize, mtd->magic[0], mtd->magic[1], mtd->filename);
+					}
+				}
+				break;
+			case '#':	// integer values
+				count = sscanf(line, "#%ms %i", &string1, &value);
+				if (count != 2) {
+					printf("line %i does not meet defined format (:<variable name> <integer>\n", lineno);
+				} else {
+					if (strcmp(string1, "version") == 0) {
+						// changing version
+						fw_version[0] = 0x000000FF & ( value >> 8 );
+						fw_version[1] = 0x000000FF &   value;
+					} else {
+						printf("unknown integer variable %s in line %i\n", string1, lineno);
+					}
+
+					lprintf(DEBUG, "integer variable %s in line %i: 0x%08X\n", string1, lineno, value);
+				}
+				break;
+			case '$':	// strings
+				count = sscanf(line, "$%ms %ms", &string1, &string2);
+				if (count != 2) {
+					printf("line %i does not meet defined format (:<mtdname> <mtdsize> <file>)\n", lineno);
+				} else {
+/*
+					if (strcmp(string1, "something") == 0) {
+						something = string2;
+						string2 = NULL;	// do not free
+					} else {
+*/
+						printf("unknown string variable %s in line %i\n", string1, lineno);
+//					}
+					lprintf(DEBUG, "string variable %s in line %i: %s\n", string1, lineno, string2);
+				}
+				break;
+			default:
+				break;
+		}
+
+		if (string1) {
+			free(string1);
+		}
+		if (string2) {
+			free(string2);
+		}
+	}
+	free(buffer);
+
+	if (!exitcode) {
+		exitcode = f_exitcode;
+	}
+
+	return exitcode;
+}
+
+
+int create_bin_file(char *bin_filename) {
+	int exitcode = 0;
+
+	unsigned char *buffer;
+
+	int i;
+	mtd_info *mtd;
+	int addsize;
+	int padsize;
+
+	char *rand_filename = "/dev/urandom";
+	FILE *f_in;
+	int size;
+
+	unsigned long int csum;
+	unsigned char checksum;
+
+	FILE *f_out;
+
+	// allocate memory for bin file
+	buffer = malloc(KERNEL_CODE_OFFSET + FLASH_SIZE);
+	if (buffer == NULL) {
+		exitcode = 1;
+		printf("create_bin_file: can not allocate %i bytes\n", FLASH_SIZE);
+	} else {
+		// initialize with zero
+		memset(buffer, 0, KERNEL_CODE_OFFSET + FLASH_SIZE);
+	}
+
+	// add files
+	if (!exitcode) {
+		for (i = 1; i <= 3; i++) {
+			addsize = 0;
+			padsize = 0;
+
+			switch (i) {
+				case 1:
+					mtd = &mtd_kernel;
+					break;
+				case 2:
+					mtd = &mtd_rootfs;
+					addsize = mtd->filesize;
+					padsize = ROOTFS_MIN_OFFSET - mtd_kernel.size - mtd->filesize;
+					break;
+				case 3:
+					mtd = &mtd_uboot;
+					addsize = mtd->filesize;
+					break;
+				default:
+					mtd = NULL;
+					exitcode = 1;
+					printf("create_bin_file: unknown mtd %i\n", i);
+					break;
+			}
+			if (mtd == NULL) {
+				break;
+			}
+			if (mtd->filename == NULL) {
+				continue;
+			}
+
+			lprintf(DEBUG, "adding mtd %s file %s\n", mtd->name, mtd->filename);
+
+			// adding file size
+			if (addsize) {
+				buffer[KERNEL_CODE_OFFSET + mtd->offset - 16] = 0x000000FFL & ( addsize >> 24 );
+				buffer[KERNEL_CODE_OFFSET + mtd->offset - 15] = 0x000000FFL & ( addsize >> 16 );
+				buffer[KERNEL_CODE_OFFSET + mtd->offset - 14] = 0x000000FFL & ( addsize >> 8  );
+				buffer[KERNEL_CODE_OFFSET + mtd->offset - 13] = 0x000000FFL &   addsize;
+			}
+
+			// adding file content
+			f_in = fopen(mtd->filename, "rb");
+			if (f_in == NULL) {
+				exitcode = errno;
+				printf("input file %s: %s\n", mtd->filename, strerror(exitcode));
+			} else {
+				size = fread(&buffer[KERNEL_CODE_OFFSET + mtd->offset], mtd->filesize, 1, f_in);
+				if (size < 1) {
+					if (ferror(f_in)) {
+						exitcode = ferror(f_in);
+						printf("input file %s: %s\n", mtd->filename, strerror(exitcode));
+					} else {
+						exitcode = 1;
+						printf("input file %s: smaller than before *doh*\n", mtd->filename);
+					}
+				}
+				fclose(f_in);
+			}
+
+			// padding
+			if (padsize > 0) {
+				printf("mtd %s input file %s is too small (0x%08lX), adding 0x%08X random bytes\n", mtd->name, mtd->filename, mtd->filesize, padsize);
+
+				addsize = padsize & 0x0000FFFF;	// start on next 64KB border
+				padsize -= addsize;
+				addsize += KERNEL_CODE_OFFSET + mtd->offset + mtd->filesize;	// get offset
+				lprintf(DEBUG, " padding offset 0x%08X length 0x%08X\n", addsize, padsize);
+
+				f_in = fopen(rand_filename, "rb");
+				if (f_in == NULL) {
+					exitcode = errno;
+					printf("input file %s: %s\n", rand_filename, strerror(exitcode));
+				} else {
+					size = fread(&buffer[addsize], padsize, 1, f_in);
+					if (size < 1) {
+						if (ferror(f_in)) {
+							exitcode = ferror(f_in);
+							printf("input file %s: %s\n", rand_filename, strerror(exitcode));
+						} else {
+							exitcode = 1;
+							printf("input file %s: smaller than before *doh*\n", rand_filename);
+						}
+					}
+				}
+				fclose(f_in);
+			}
+		}
+	}
+
+	// add special contents
+	if (!exitcode) {
+		lprintf(DEBUG, "adding rootfs special data\n");
+		memcpy(&buffer[KERNEL_CODE_OFFSET + PRODUCT_ID_OFFSET], product_id, 2);
+		memcpy(&buffer[KERNEL_CODE_OFFSET + PROTOCOL_ID_OFFSET], protocol_id, 2);
+		memcpy(&buffer[KERNEL_CODE_OFFSET + FW_VERSION_OFFSET], fw_version, 2);
+		memcpy(&buffer[KERNEL_CODE_OFFSET + FW_VERSION_OFFSET + 2], rootfs_unknown, 2);
+		memcpy(&buffer[KERNEL_CODE_OFFSET + SIGN_OFFSET], sign, 8);	// eRcOmM
+
+		lprintf(DEBUG, "adding u-boot special data 1/2\n");	// ToDo: or after creating the checksum byte?
+//		memcpy(&buffer[KERNEL_CODE_OFFSET + SN_OFF], sn, 12);	// ToDo: find out what's this for?
+//		memcpy(&buffer[KERNEL_CODE_OFFSET + PIN_OFF], pin, 8);	// ToDo: find out what's this for?
+//		memcpy(&buffer[KERNEL_CODE_OFFSET + NODE_BASE_OFF], node, 25);	// ToDo: find out what's this for?
+
+		lprintf(DEBUG, "adding checksum byte\n");
+		csum = 0;
+		for (i = 0; i < KERNEL_CODE_OFFSET + FLASH_SIZE; i++) {
+			csum += buffer[i];
+		}
+		lprintf(DEBUG_LVL2, " checksum 0x%016lX (%li)\n", csum, csum);
+
+		buffer[KERNEL_CODE_OFFSET + NODE_BASE_OFF + 25] = ~(csum+108)+1;
+		lprintf(DEBUG, " byte 0x%02X\n", buffer[KERNEL_CODE_OFFSET + NODE_BASE_OFF + 25]);
+
+		lprintf(DEBUG, "adding u-boot special data 2/2\n");
+		memcpy(&buffer[KERNEL_CODE_OFFSET + BOOT_ADDR_BASE_OFF + PID_OFFSET], pid, 70);	// sErCoMm
+		memcpy(&buffer[KERNEL_CODE_OFFSET + BOOT_ADDR_BASE_OFF + PID_OFFSET + 57], fw_version, 2);
+	}
+
+	// write bin file
+	if (!exitcode) {
+		lprintf(DEBUG, "writing file %s\n", bin_filename);
+		f_out = fopen(bin_filename, "wb");
+		if (f_out == NULL) {
+			exitcode = errno;
+			printf("output file %s: %s\n", bin_filename, strerror(exitcode));
+		} else {
+			size = fwrite(buffer, KERNEL_CODE_OFFSET + FLASH_SIZE, 1, f_out);
+			if (size < 1) {
+				if (ferror(f_out)) {
+					exitcode = ferror(f_out);
+					printf("output file %s: %s\n", bin_filename, strerror(exitcode));
+				} else {
+					exitcode = 1;
+					printf("output file %s: unspecified write error\n", bin_filename);
+				}
+			}
+			fclose(f_out);
+		}
+	}
+
+	return exitcode;
+}
+
+
+int create_zip_file(char *zip_filename, char *bin_filename) {
+	int exitcode = 0;
+
+	char *buffer;
+	size_t buffer_size;
+	int count;
+
+	buffer_size = 1000;
+	buffer = NULL;
+	do {
+		// allocate memory for command line
+		if (buffer == NULL) {
+			buffer = malloc(buffer_size);
+		}
+		if (buffer == NULL) {
+			exitcode = 1;
+			printf("create_zip_file: can not allocate %i bytes\n", buffer_size);
+			break;
+		}
+
+		// if buffer was not completely filled, then line fit in completely
+		count = snprintf(buffer, buffer_size, "zip %s %s", zip_filename, bin_filename);
+		if (count > -1 && count < buffer_size) {
+			break;
+		}
+
+		// otherwise try again with more space
+		if (count > -1) {	// glibc 2.1
+			buffer_size = count + 1;	// precisely what is needed
+		} else {	// glibc 2.0
+			buffer_size *= 2;	// twice the old size
+		}
+		free(buffer);
+		buffer = NULL;
+		lprintf(DEBUG_LVL2, " extending buffer to %i bytes\n", buffer_size);
+	} while (1);
+
+	if (!exitcode) {
+		// zipping binfile
+		lprintf(DEBUG, "%s\n", buffer);
+		count = system(buffer);
+		if (count < 0 || WEXITSTATUS(count)) {
+			exitcode = 1;
+			printf("create_zip_file: can not execute %s bytes\n", buffer);
+		}
+	}
+
+	return exitcode;
+}
+
+
+int create_img_file(FILE *f_out, char *out_filename, char *zip_filename) {
+	int exitcode = 0;
+
+	md5_state_t state;
+	md5_byte_t digest[16];
+
+	int i;
+	int size;
+
+	FILE *f_in;
+	unsigned char buffer[1];
+
+	// copy firmware version
+	memcpy(&img_hdr[50], fw_version, 2);
+
+	// clear md5 checksum
+	memset(&img_hdr[480], 0, 16);
+
+	// prepare md5 checksum calculation
+	md5_init(&state);
+
+	// add img header
+	lprintf(DEBUG_LVL2, " adding img header\n");
+	for (i = 0; i < 512; i++) {
+		size = fputc(img_hdr[i], f_out);
+		if (size == EOF) {
+			exitcode = ferror(f_out);
+			printf("output file %s: %s\n", out_filename, strerror(exitcode));
+			break;
+		}
+		md5_append(&state, (const md5_byte_t *)&img_hdr[i], 1);
+	}
+
+	// adding zip file
+	if (!exitcode) {
+		lprintf(DEBUG_LVL2, " adding zip file\n");
+		f_in = fopen(zip_filename, "rb");
+		if (f_in == NULL) {
+			exitcode = errno;
+			printf("input file %s: %s\n", zip_filename, strerror(exitcode));
+		} else {
+			while ((size = fgetc(f_in)) != EOF) {
+				buffer[0] = size;
+
+				size = fputc(buffer[0], f_out);
+				if (size == EOF) {
+					exitcode = ferror(f_out);
+					printf("output file %s: %s\n", out_filename, strerror(exitcode));
+					break;
+				}
+				md5_append(&state, (const md5_byte_t *)buffer, 1);
+			}
+			if (ferror(f_in)) {
+				exitcode = ferror(f_in);
+				printf("input file %s: %s\n", zip_filename, strerror(exitcode));
+			}
+		}
+
+	}
+
+	// add end byte
+	if (!exitcode) {
+		lprintf(DEBUG_LVL2, " adding img eof byte\n");
+		size = fputc(img_eof[0], f_out);
+		if (size == EOF) {
+			exitcode = ferror(f_out);
+			printf("output file %s: %s\n", out_filename, strerror(exitcode));
+		}
+		md5_append(&state, (const md5_byte_t *)img_eof, 1);
+	}
+
+	// append salt to md5 checksum
+	md5_append(&state, (const md5_byte_t *)"A^gU*<>?RFY@#DR&Z", 17);
+
+	// finish md5 checksum calculation
+	md5_finish(&state, digest);
+
+	// write md5 checksum into img header
+	if (!exitcode) {
+		lprintf(DEBUG_LVL2, " writing md5 checksum into img header of file\n");
+
+		size = fseek(f_out, 480, SEEK_SET);
+		if (size == -1) {
+			exitcode = errno;
+			printf("output file %s: %s\n", out_filename, strerror(exitcode));
+		} else {
+			size = fwrite(digest, 16, 1, f_out);
+			if (size < 1) {
+				if (ferror(f_out)) {
+					exitcode = ferror(f_out);
+					printf("output file %s: %s\n", out_filename, strerror(exitcode));
+				} else {
+					exitcode = 1;
+					printf("output file %s: unspecified write error\n", out_filename);
+				}
+			}
+		}
+
+		fclose(f_in);
+	}
+
+	return exitcode;
+}
+
+
+int main(int argc, char *argv[]) {
+	int exitcode = 0;
+
+	int help;
+	int havezip;
+	char option;
+	char *par_filename = NULL;
+	char *out_filename = NULL;
+	char *base_filename = NULL;
+	char *bin_filename = NULL;
+	char *zip_filename = NULL;
+
+	FILE *f_par;
+	FILE *f_out;
+
+	int i;
+	mtd_info *mtd;
+	int mandatory;
+	int noupdate;
+	int sizecheck;
+	unsigned char magic[2];
+
+
+// display program header
+	printf(program_info, VERSION);
+
+
+// command line processing
+	// options
+	help = 0;
+	havezip = 0;
+	while ((option = getopt(argc, argv, ":hzf:v")) != -1) {
+		switch(option) {
+			case 'h':
+				help = 1;
+				break;
+			case 'z':
+				havezip = 1;
+				break;
+			case 'f':
+				sizecheck = sscanf(optarg, "%i", &i);
+				if (sizecheck != 1) {
+					printf("firmware version of -f option not a valid integer\n");
+					exitcode = 1;
+				} else {
+					fw_version[0] = 0x000000FF & ( i >> 8 );
+					fw_version[1] = 0x000000FF &   i;
+				}
+				break;
+			case 'v':
+				verbosity++;
+				break;
+			case ':':	// option with missing operand
+				printf("Option -%c requires an operand\n", optopt);
+				exitcode = 1;
+				break;
+			case '?':
+				printf("Unrecognized option: -%c\n", optopt);
+				exitcode = 1;
+				break;
+		}
+	}
+
+	// files
+	for ( ; optind < argc; optind++) {
+		if (par_filename == NULL) {
+			par_filename = argv[optind];
+
+			if (access(par_filename, R_OK)) {
+				if (havezip) {
+					printf("No read access to zip file %s\n", par_filename);
+				} else {
+					printf("No read access to parameter or zip file %s\n", par_filename);
+				}
+				exitcode = 1;
+			}
+
+			continue;
+		}
+
+		if (out_filename == NULL) {
+			out_filename = argv[optind];
+
+			if (!access(out_filename, F_OK)) {	// if file already exists then check write access
+				if (access(out_filename, W_OK)) {
+					printf("No write access to output file %s\n", out_filename);
+					exitcode = 1;
+				}
+			}
+
+			continue;
+		}
+
+		printf("Too many files stated\n");
+		exitcode = 1;
+		break;
+	}
+
+	// file name checks
+	if (par_filename == NULL) {
+		if (havezip) {
+			printf("Zip file not stated\n");
+		} else {
+			printf("Parameter file not stated\n");
+		}
+		exitcode = 1;
+	} else {
+		base_filename = basename(par_filename);
+		if (base_filename == NULL) {
+			if (havezip) {
+				printf("Zip file is a directory\n");
+			} else {
+				printf("Parameter file is a directory\n");
+			}
+			exitcode = 1;
+		}
+	}
+
+	if (out_filename == NULL) {
+		printf("Output file not stated\n");
+		exitcode = 1;
+	} else {
+		base_filename = basename(out_filename);
+		if (base_filename == NULL) {
+			printf("Output file is a directory\n");
+			exitcode = 1;
+		} else {
+			base_filename = strdup(base_filename);
+			zip_filename = strrchr(base_filename, '.');
+			if (zip_filename != NULL) {
+				zip_filename[0] = 0;
+				zip_filename = NULL;	// clean up
+			}
+		}
+	}
+
+	// react on parameter problems or help request, and exit
+	if ((exitcode != 0) || help) {
+		if (help) {
+			printf("This program creates Linksys style images for the WRT350Nv2 router.\n");
+		}
+		printf("  Usage:\n\
+  %s [-h] [-z] [-f <version>] [-v] <parameter or zip file> <output file>\n\n\
+  Options:\n\
+  -h            -  Show this help\n\
+  -z            -  Have zip file, the img file will be directly created from it\n\
+  -f <version>  -  Wanted firmware version to use with -z\n\
+                   Default firmware version is 0x2019 = 2.00.19.\n\
+                   Note: version from parameter file will supersede this\n\
+  -v            -  Increase debug verbosity level\n\n\
+  Example:\n\
+  %s wrt350nv2.par wrt350nv2.img\n\n", argv[0], argv[0]);
+		return exitcode;
+	}
+
+	// handle special case when zipfile is stated
+	if (havezip) {
+		zip_filename = par_filename;
+		par_filename = NULL;
+	}
+
+	lprintf(DEBUG_LVL2, " verbosity: %i\n", verbosity);
+	lprintf(DEBUG_LVL2, " program: %s\n", argv[0]);
+
+	lprintf(DEBUG, "Parameter file: %s\n", par_filename);
+	lprintf(DEBUG, "Output file: %s\n", out_filename);
+	lprintf(DEBUG_LVL2, " basename: %s (%i)\n", base_filename, strlen(base_filename));
+
+
+// open files from command line
+	// parameter file
+	if (par_filename != NULL) {
+		f_par = fopen(par_filename, "r");
+		if (f_par == NULL) {
+			exitcode = errno;
+			printf("input file %s: %s\n", par_filename, strerror(exitcode));
+		}
+	}
+
+	// output file
+	f_out = fopen(out_filename, "w");
+	if (f_out == NULL) {
+		exitcode = errno;
+		printf("Output file %s: %s\n", out_filename, strerror(exitcode));
+	}
+
+	if (exitcode) {
+		return exitcode;
+	}
+
+
+// parameter file processing
+	if (!exitcode && par_filename != NULL) {
+		lprintf(DEBUG, "parsing parameter file...\n");
+
+		exitcode = parse_par_file(f_par);
+
+		lprintf(DEBUG, "...done parsing file\n");
+	}
+	if (par_filename != NULL) {
+		fclose(f_par);
+	}
+
+
+// check all input data
+	if (!exitcode && par_filename != NULL) {
+		lprintf(DEBUG, "checking mtd data...\n");
+
+		for (i = 1; i <= 3; i++) {
+			mandatory = 0;
+			noupdate = 0;
+			sizecheck = 0;
+			magic[0] = 0;
+			magic[1] = 0;
+
+			switch (i) {
+				case 1:
+					mtd = &mtd_kernel;
+					mandatory = 1;
+					sizecheck = mtd_kernel.size - 16;
+					magic[0] = 0x27;
+					magic[1] = 0x05;
+					break;
+				case 2:
+					mtd = &mtd_rootfs;
+					mtd->offset = mtd_kernel.size;
+					mtd->size = ROOTFS_END_OFFSET - mtd_kernel.size;
+					mandatory = 1;
+					sizecheck = PRODUCT_ID_OFFSET - mtd_kernel.size;
+					magic[0] = 0x68;
+					magic[1] = 0x73;
+					break;
+				case 3:
+					mtd = &mtd_uboot;
+					mtd->offset = BOOT_ADDR_BASE_OFF;
+					noupdate = 1;
+					sizecheck = SN_OFF - BOOT_ADDR_BASE_OFF;
+					break;
+				default:
+					mtd = NULL;
+					exitcode = 1;
+					printf("unknown mtd check %i\n", i);
+					break;
+			}
+			if (mtd == NULL) {
+				break;
+			}
+
+			lprintf(DEBUG_LVL2, " checking mtd %s\n", mtd->name);
+
+			// general checks
+			if (mandatory && mtd->filename == NULL) {
+				exitcode = 1;
+				printf("mtd %s not specified correctly or at all in parameter file\n", mtd->name);
+			}
+
+			// end checks if no file data present
+			if (mtd->filename == NULL) {
+				continue;
+			}
+
+			// not updated by stock firmware
+			if (noupdate) {
+				printf("mtd %s is specified, but will not be updated as of Linksys firmware 2.0.19\n", mtd->name);
+			}
+
+			// general magic number check
+			if (magic[0]) {
+				if (mtd->magic[0] != magic[0] || mtd->magic[1] != magic[1]) {
+					exitcode = 1;
+					printf("mtd %s input file %s has wrong magic number (0x%02X%02X)\n", mtd->name, mtd->filename, mtd->magic[0], mtd->magic[1]);
+				}
+			}
+
+			// mtd specific size check
+			if (mtd == &mtd_kernel) {
+				if (mtd->filesize < 0x00050000) {
+					exitcode = 1;
+					printf("mtd %s input file %s too unrealistic small (0x%08lX)\n", mtd->name, mtd->filesize);
+				}
+			}
+
+			// general size check
+			if (sizecheck) {
+				if (sizecheck <= 0) {
+					exitcode = 1;
+					printf("mtd %s bad file size check (%i) due to input data\n", mtd->name, sizecheck);
+				} else {
+					if (mtd->filesize > sizecheck) {
+						exitcode = 1;
+						printf("mtd %s input file %s too big (0x%08lX)\n", mtd->name, mtd->filename, mtd->filesize);
+					}
+				}
+			}
+		}
+		lprintf(DEBUG, "...done checking mtd data\n");
+	}
+
+
+// bin creation in memory
+	if (!exitcode && par_filename != NULL) {
+		// create bin name from basename
+		bin_filename = malloc(strlen(base_filename)+10);
+		sprintf(bin_filename, "%s.bin", base_filename);
+
+		lprintf(DEBUG, "creating bin file %s...\n", bin_filename);
+
+		exitcode = create_bin_file(bin_filename);
+
+		lprintf(DEBUG, "...done creating bin file\n");
+	}
+
+
+// zip file creation
+	if (!exitcode && zip_filename == NULL) {
+		// create zip name from basename
+		zip_filename = malloc(strlen(base_filename)+10);
+		sprintf(zip_filename, "%s.zip", base_filename);
+
+		lprintf(DEBUG, "creating zip file %s...\n", zip_filename);
+
+		exitcode = create_zip_file(zip_filename, bin_filename);
+
+		lprintf(DEBUG, "...done creating zip file\n");
+	}
+
+
+// img file creation
+	if (!exitcode) {
+		lprintf(DEBUG, "creating img file...\n");
+
+		exitcode = create_img_file(f_out, out_filename, zip_filename);
+
+		lprintf(DEBUG, "...done creating img file\n");
+	}
+	fclose(f_out);
+
+
+// end program
+	return exitcode;
+}