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Add apps/netutils/codecs and associated NSH commands from Darcy Gong

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5280 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2012-10-31 14:36:00 +00:00
parent cc5fbb7246
commit 97fd74fbdd
18 changed files with 2320 additions and 35 deletions
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1
netutils/Kconfig
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@ -5,6 +5,7 @@
comment "Networking Utilities"
source "$APPSDIR/netutils/codecs/Kconfig"
source "$APPSDIR/netutils/dhcpc/Kconfig"
source "$APPSDIR/netutils/dhcpd/Kconfig"
source "$APPSDIR/netutils/ftpc/Kconfig"

4
netutils/Make.defs
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@ -34,6 +34,10 @@
#
############################################################################
ifeq ($(CONFIG_NETUTILS_CODECS),y)
CONFIGURED_APPS += netutils/codecs
endif
ifeq ($(CONFIG_NETUTILS_DHCPC),y)
CONFIGURED_APPS += netutils/dhcpc
endif

2
netutils/Makefile
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@ -37,7 +37,7 @@
# Sub-directories
SUBDIRS = json
SUBDIRS = json codecs
ifeq ($(CONFIG_NET),y)
SUBDIRS += uiplib dhcpc dhcpd discover ftpc ftpd resolv smtp telnetd
SUBDIRS += webclient webserver tftpc thttpd xmlrpc

59
netutils/codecs/Kconfig Normal file
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@ -0,0 +1,59 @@
#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#
config NETUTILS_CODECS
bool "CODEC Library"
default n
---help---
Enables the netutils/code library: Base64 coding, URL coding, MD5.
if NETUTILS_CODECS
config CODECS_BASE64
bool "Base 64 Support"
default n
---help---
Enables support for the following interfaces: base64_encode(),
base64_decode(), base64w_encode(), and base64w_decode(),
Contributed NuttX by Darcy Gong.
config CODECS_HASH_MD5
bool "MD5 Support"
default n
---help---
Enables support for the following interfaces: MD5Init(),
MD5Update(), MD5Final(), MD5Transform(), md5_sum() and md5_hash()
Contributed NuttX by Darcy Gong.
config CODECS_URLCODE
bool "URL Decode Support"
default n
---help---
Enables support for the following interfaces: urlencode() and
urldecode()
Contributed NuttX by Darcy Gong.
config CODECS_URLCODE_NEWMEMORY
bool "URL Allocating Decode Support"
default n
---help---
Enables support for the following interfaces: url_encode() and
url_decode()
Contributed NuttX by Darcy Gong.
config CODECS_AVR_URLCODE
bool "URL Raw Decode Support"
default n
---help---
Enables support for the following interfaces: urlrawdecode() and
urlrawencode()
Contributed NuttX by Darcy Gong.
endif

91
netutils/codecs/Makefile Normal file
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@ -0,0 +1,91 @@
############################################################################
# apps/netutils/codecs/Makefile
#
# Copyright (C) 2012 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
ASRCS =
CSRCS = urldecode.c base64.c md5.c
AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))
SRCS = $(ASRCS) $(CSRCS)
OBJS = $(AOBJS) $(COBJS)
ifeq ($(WINTOOL),y)
BIN = "${shell cygpath -w $(APPDIR)/libapps$(LIBEXT)}"
else
BIN = "$(APPDIR)/libapps$(LIBEXT)"
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)
@( for obj in $(OBJS) ; do \
$(call ARCHIVE, $(BIN), $${obj}); \
done ; )
@touch .built
context:
.depend: Makefile $(SRCS)
@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
@touch $@
depend: .depend
clean:
@rm -f *.o *~ .*.swp .built
$(call CLEAN)
distclean: clean
@rm -f Make.dep .depend
-include Make.dep

359
netutils/codecs/base64.c Normal file
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@ -0,0 +1,359 @@
/****************************************************************************
* apps/include/netutils/base64.h
*
* This file is part of the NuttX RTOS:
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Darcy Gong
*
* Reference:
*
* Base64 encoding/decoding (RFC1341)
* Copyright (c) 2005, Jouni Malinen <jkmaline@cc.hut.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*
* And is re-released under the NuttX modified BSD license:
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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 <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <apps/netutils/base64.h>
#ifdef CONFIG_CODECS_BASE64
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: base64_tab
****************************************************************************/
static void base64_tab(unsigned char *tab, size_t len, bool websafe)
{
static const char *_tab =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
memset(tab, 0, len);
if (len >= 64)
{
memcpy(tab, _tab, 64);
}
if (websafe)
{
tab[62] = '-';
tab[63] = '_';
}
}
/****************************************************************************
* Name: _base64_encode
*
* Description:
* Base64 encode
*
* Caller is responsible for freeing the returned buffer. Returned buffer
* is nul terminated to make it easier to use as a C string. The nul
* terminator is not included in out_len.
*
* Input Parameters:
* src: Data to be encoded
* len: Length of the data to be encoded
* out_len: Pointer to output length variable, or NULL if not used
*
* Returned Value:
* Returns: Allocated buffer of out_len bytes of encoded data,
* or NULL on failure
*
****************************************************************************/
static unsigned char *_base64_encode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len,
bool websafe)
{
unsigned char *out;
unsigned char *pos;
const unsigned char *end;
const unsigned char *in;
size_t olen;
/*int line_len; */
unsigned char base64_table[64];
char ch = '=';
if (websafe)
{
ch = '.';
}
base64_tab(base64_table, sizeof(base64_table), websafe);
olen = len * 4 / 3 + 4; /* 3-byte blocks to 4-byte */
#if 0
olen += olen / 72; /* line feeds */
olen++; /* nul termination */
out = malloc(olen);
if (out == NULL)
{
return NULL;
}
#endif
end = src + len;
in = src;
if (dst)
{
pos = out = dst;
}
else
{
pos = out = malloc(olen);
if (out == NULL)
{
return NULL;
}
}
/*line_len = 0; */
while (end - in >= 3)
{
*pos++ = base64_table[in[0] >> 2];
*pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)];
*pos++ = base64_table[((in[1] & 0x0f) << 2) | (in[2] >> 6)];
*pos++ = base64_table[in[2] & 0x3f];
in += 3;
/* line_len += 4; */
}
if (end - in)
{
*pos++ = base64_table[in[0] >> 2];
if (end - in == 1)
{
*pos++ = base64_table[(in[0] & 0x03) << 4];
*pos++ = ch; /* *pos++ = '='; */
}
else
{
*pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)];
*pos++ = base64_table[(in[1] & 0x0f) << 2];
}
*pos++ = ch; /* *pos++ = '='; */
/* line_len += 4; */
}
#if 0
if (line_len)
{
*pos++ = '\n';
}
#endif
*pos = '\0';
if (out_len)
{
*out_len = pos - out;
}
/*out[*out_len] = '\0'; */
return out;
}
/****************************************************************************
* Name: _base64_decode
*
* Description:
* Base64 decode
*
* Caller is responsible for freeing the returned buffer.
*
* Input Parameters:
* src: Data to be decoded
* len: Length of the data to be decoded
* out_len: Pointer to output length variable
*
* Returned Value:
* Returns: Allocated buffer of out_len bytes of decoded data,
* or NULL on failure
*
****************************************************************************/
static unsigned char *_base64_decode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len,
bool websafe)
{
unsigned char dtable[256];
unsigned char *out;
unsigned char *pos;
unsigned char in[4];
unsigned char block[4];
unsigned char tmp;
size_t count;
size_t i;
unsigned char base64_table[64];
char ch = '=';
if (websafe)
{
ch = '.';
}
base64_tab(base64_table, sizeof(base64_table), websafe);
memset(dtable, 0x80, 256);
for (i = 0; i < sizeof(base64_table); i++)
{
dtable[base64_table[i]] = i;
}
dtable[(int)ch] = 0; /* dtable['='] = 0; */
count = 0;
for (i = 0; i < len; i++)
{
if (dtable[src[i]] != 0x80)
{
count++;
}
}
if (count % 4)
{
return NULL;
}
if (dst)
{
pos = out = dst;
}
else
{
pos = out = malloc(count);
if (out == NULL)
{
return NULL;
}
}
count = 0;
for (i = 0; i < len; i++)
{
tmp = dtable[src[i]];
if (tmp == 0x80)
{
continue;
}
in[count] = src[i];
block[count] = tmp;
count++;
if (count == 4)
{
*pos++ = (block[0] << 2) | (block[1] >> 4);
*pos++ = (block[1] << 4) | (block[2] >> 2);
*pos++ = (block[2] << 6) | block[3];
count = 0;
}
}
if (pos > out)
{
if (in[2] == ch) /* if (in[2] == '=') */
{
pos -= 2;
}
else if (in[3] == ch) /* else if (in[3] == '=') */
{
pos--;
}
}
*out_len = pos - out;
return out;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: base64_encode
****************************************************************************/
unsigned char *base64_encode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len)
{
return _base64_encode(src, len, dst, out_len, false);
}
/****************************************************************************
* Name: base64_decode
****************************************************************************/
unsigned char *base64_decode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len)
{
return _base64_decode(src, len, dst, out_len, false);
}
/****************************************************************************
* Name: base64w_encode
****************************************************************************/
unsigned char *base64w_encode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len)
{
return _base64_encode(src, len, dst, out_len, true);
}
/****************************************************************************
* Name: base64w_decode
****************************************************************************/
unsigned char *base64w_decode(const unsigned char *src, size_t len,
unsigned char *dst, size_t * out_len)
{
return _base64_decode(src, len, dst, out_len, true);
}
#endif /* CONFIG_CODECS_BASE64 */

402
netutils/codecs/md5.c Normal file
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/****************************************************************************
* apps/include/netutils/base64.h
*
* This file is part of the NuttX RTOS:
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Darcy Gong
*
* Reference:
*
* This code implements the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*
* See README and COPYING for more details.
*
* And is re-released under the NuttX modified BSD license:
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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 <string.h>
#include <stdint.h>
#include <apps/netutils/md5.h>
#ifdef CONFIG_CODECS_HASH_MD5
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* The four core functions - F1 is optimized somewhat */
/* #define F1(x, y, z) (x & y | ~x & z) */
# define F1(x, y, z) (z ^ (x & (y ^ z)))
# define F2(x, y, z) F1(z, x, y)
# define F3(x, y, z) (x ^ y ^ z)
# define F4(x, y, z) (y ^ (x | ~z))
/* This is the central step in the MD5 algorithm. */
# define MD5STEP(f, w, x, y, z, data, s) \
( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: byteReverse
****************************************************************************/
#ifndef CONFIG_ENDIAN_BIG
# define byteReverse(buf, len)
#else
static void byteReverse(unsigned char *buf, unsigned longs)
{
uint32_t t;
do
{
t = ((uint32_t)buf[3] << 8) |
((uint32_t)buf[2]) << 16) |
((uint32_t)buf[1] << 8) |
(uint32_t)buf[0];
*(uint32_t*)buf = t;
buf += 4;
}
while (--longs);
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: MD5Init
*
* Description:
* Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
* initialization constants.
*
****************************************************************************/
void MD5Init(struct MD5Context *ctx)
{
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
ctx->bits[0] = 0;
ctx->bits[1] = 0;
}
/****************************************************************************
* Name: MD5Update
*
* Description:
* Update context to reflect the concatenation of another buffer full
* of bytes.
*
****************************************************************************/
void MD5Update(struct MD5Context *ctx, unsigned char const *buf, unsigned len)
{
uint32_t t;
/* Update bitcount */
t = ctx->bits[0];
if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
{
/* Carry from low to high */
ctx->bits[1]++;
}
ctx->bits[1] += len >> 29;
/* Bytes already in shsInfo->data */
t = (t >> 3) & 0x3f;
/* Handle any leading odd-sized chunks */
if (t)
{
unsigned char *p = (unsigned char *)ctx->in + t;
t = 64 - t;
if (len < t)
{
memcpy(p, buf, len);
return;
}
memcpy(p, buf, t);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
buf += t;
len -= t;
}
/* Process data in 64-byte chunks */
while (len >= 64)
{
memcpy(ctx->in, buf, 64);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
buf += 64;
len -= 64;
}
/* Handle any remaining bytes of data. */
memcpy(ctx->in, buf, len);
}
/****************************************************************************
* Name: MD5Final
*
* Description:
* Final wrapup - pad to 64-byte boundary with the bit pattern
* 1 0* (64-bit count of bits processed, MSB-first)
*
****************************************************************************/
void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
{
unsigned count;
unsigned char *p;
/* Compute number of bytes mod 64 */
count = (ctx->bits[0] >> 3) & 0x3f;
/* Set the first char of padding to 0x80. This is safe since there is
* always at least one byte free.
*/
p = ctx->in + count;
*p++ = 0x80;
/* Bytes of padding needed to make 64 bytes */
count = 64 - 1 - count;
/* Pad out to 56 mod 64 */
if (count < 8)
{
/* Two lots of padding: Pad the first block to 64 bytes */
memset(p, 0, count);
byteReverse(ctx->in, 16);
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
/* Now fill the next block with 56 bytes */
memset(ctx->in, 0, 56);
}
else
{
/* Pad block to 56 bytes */
memset(p, 0, count - 8);
}
byteReverse(ctx->in, 14);
/* Append length in bits and transform */
((uint32_t *)ctx->in)[14] = ctx->bits[0];
((uint32_t *)ctx->in)[15] = ctx->bits[1];
MD5Transform(ctx->buf, (uint32_t *) ctx->in);
byteReverse((unsigned char *)ctx->buf, 4);
memcpy(digest, ctx->buf, 16);
memset(ctx, 0, sizeof(ctx)); /* In case it's sensitive */
}
/****************************************************************************
* Name: MD5Transform
*
* Description:
* The core of the MD5 algorithm, this alters an existing MD5 hash to
* reflect the addition of 16 longwords of new data. MD5Update blocks
* the data and converts bytes into longwords for this routine.
*
****************************************************************************/
void MD5Transform(uint32_t buf[4], uint32_t const in[16])
{
register uint32_t a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}
/****************************************************************************
* Name: md5_sum
*
* Description:
* MD5 hash for a data block
*
* Input Parameters:
* addr: Pointers to the data area
* len: Lengths of the data block
* mac: Buffer for the hash
*
****************************************************************************/
void md5_sum(const uint8_t * addr, const size_t len, uint8_t * mac)
{
MD5_CTX ctx;
MD5Init(&ctx);
MD5Update(&ctx, addr, len);
MD5Final(mac, &ctx);
}
/****************************************************************************
* Name: md5_hash
****************************************************************************/
char *md5_hash(const uint8_t * addr, const size_t len)
{
uint8_t digest[16];
char *hash;
int i;
hash = malloc(33);
md5_sum(addr, len, digest);
for (i = 0; i < 16; i++)
{
vsprintf(&hash[i * 2], "%.2x", digest[i]);
}
hash[32] = 0;
return hash;
}
#endif /* CONFIG_CODECS_HASH_MD5 */

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netutils/codecs/urldecode.c Normal file
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/****************************************************************************
* apps/include/netutils/base64.h
*
* This file is part of the NuttX RTOS:
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Darcy Gong
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <apps/netutils/urldecode.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE
# define IS_HEX_CHAR(ch) \
((ch >= '0' && ch <= '9') || \
(ch >= 'a' && ch <= 'f') || \
(ch >= 'A' && ch <= 'F'))
# define HEX_VALUE(ch, value) \
if (ch >= '0' && ch <= '9') \
{ \
value = ch - '0'; \
} \
else if (ch >= 'a' && ch <= 'f') \
{ \
value = ch - 'a' + 10; \
} \
else \
{ \
value = ch - 'A' + 10; \
}
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: from_hex
*
* Description:
* Converts a hex character to its integer value,
*
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE_NEWMEMORY
static char from_hex(char ch)
{
return isdigit(ch) ? ch - '0' : tolower(ch) - 'a' + 10;
}
#endif
/****************************************************************************
* Name:
*
* Description:
* Converts an integer value to its hex character,
*
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE_NEWMEMORY
static char to_hex(char code)
{
static const char hex[] = "0123456789abcdef";
return hex[code & 15];
}
#endif
/****************************************************************************
* Name: int2h
*
* Description:
* Convert a single character to a 2 digit hex str a terminating '\0' is
* added
*
****************************************************************************/
#ifdef CONFIG_CODECS_AVR_URLCODE
static void int2h(char c, char *hstr)
{
hstr[1] = (c & 0xf) + '0';
if ((c & 0xf) > 9)
{
hstr[1] = (c & 0xf) - 10 + 'a';
}
c = (c >> 4) & 0xf;
hstr[0] = c + '0';
if (c > 9)
{
hstr[0] = c - 10 + 'a';
}
hstr[2] = '\0';
}
#endif
/****************************************************************************
* Name: h2int
*
* Description:
* Convert a single hex digit character to its integer value.
*
****************************************************************************/
#ifdef CONFIG_CODECS_AVR_URLCODE
static unsigned char h2int(char c)
{
if (c >= '0' && c <= '9')
{
return ((unsigned char)c - '0');
}
if (c >= 'a' && c <= 'f')
{
return ((unsigned char)c - 'a' + 10);
}
if (c >= 'A' && c <= 'F')
{
return ((unsigned char)c - 'A' + 10);
}
return 0;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name:
*
* Description:
* Returns a url-encoded version of str.
*
* IMPORTANT: be sure to free() the returned string after use.
*
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE_NEWMEMORY
char *url_encode(char *str)
{
char *pstr = str;
char *buf = malloc(strlen(str) * 3 + 1);
char *pbuf = buf;
while (*pstr)
{
if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
{
*pbuf++ = *pstr;
}
else if (*pstr == ' ')
{
*pbuf++ = '+';
}
else
{
*pbuf++ = '%';
*pbuf++ = to_hex(*pstr >> 4);
*pbuf++ = to_hex(*pstr & 15);
}
pstr++;
}
*pbuf = '\0';
return buf;
}
#endif
/****************************************************************************
* Name: url_decode
*
* Description:
* Returns a url-decoded version of str.
*
* IMPORTANT: be sure to free() the returned string after use.
*
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE_NEWMEMORY
char *url_decode(char *str)
{
char *pstr = str;
char *buf = malloc(strlen(str) + 1);
char *pbuf = buf;
while (*pstr)
{
if (*pstr == '%')
{
if (pstr[1] && pstr[2])
{
*pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
pstr += 2;
}
}
else if (*pstr == '+')
{
*pbuf++ = ' ';
}
else
{
*pbuf++ = *pstr;
}
pstr++;
}
*pbuf = '\0';
return buf;
}
#endif
/****************************************************************************
* Name: urlencode
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE
char *urlencode(const char *src, const int src_len, char *dest, int *dest_len)
{
static const unsigned char hex_chars[] = "0123456789ABCDEF";
const unsigned char *pSrc;
const unsigned char *pEnd;
char *pDest;
pDest = dest;
pEnd = (unsigned char *)src + src_len;
for (pSrc = (unsigned char *)src; pSrc < pEnd; pSrc++)
{
if ((*pSrc >= '0' && *pSrc <= '9') ||
(*pSrc >= 'a' && *pSrc <= 'z') ||
(*pSrc >= 'A' && *pSrc <= 'Z') ||
(*pSrc == '_' || *pSrc == '-' || *pSrc == '.' || *pSrc == '~'))
{
*pDest++ = *pSrc;
}
else if (*pSrc == ' ')
{
*pDest++ = '+';
}
else
{
*pDest++ = '%';
*pDest++ = hex_chars[(*pSrc) >> 4];
*pDest++ = hex_chars[(*pSrc) & 0x0F];
}
}
*pDest = '\0';
*dest_len = pDest - dest;
return dest;
}
#endif
/****************************************************************************
* Name: urldecode
****************************************************************************/
#ifdef CONFIG_CODECS_URLCODE
char *urldecode(const char *src, const int src_len, char *dest, int *dest_len)
{
const unsigned char *pSrc;
const unsigned char *pEnd;
char *pDest;
unsigned char cHigh;
unsigned char cLow;
int valHigh;
int valLow;
pDest = dest;
pSrc = (unsigned char *)src;
pEnd = (unsigned char *)src + src_len;
while (pSrc < pEnd)
{
if (*pSrc == '%' && pSrc + 2 < pEnd)
{
cHigh = *(pSrc + 1);
cLow = *(pSrc + 2);
if (IS_HEX_CHAR(cHigh) && IS_HEX_CHAR(cLow))
{
HEX_VALUE(cHigh, valHigh)
HEX_VALUE(cLow, valLow)
*pDest++ = (valHigh << 4) | valLow;
pSrc += 3;
}
else
{
*pDest++ = *pSrc;
pSrc++;
}
}
else if (*pSrc == '+')
{
*pDest++ = ' ';
pSrc++;
}
else
{
*pDest++ = *pSrc;
pSrc++;
}
}
*pDest = '\0';
*dest_len = pDest - dest;
return dest;
}
#endif
/****************************************************************************
* Name: urlrawdecode
*
* Description:
* decode a url string e.g "hello%20joe" or "hello+joe" becomes "hello joe"
*
****************************************************************************/
#ifdef CONFIG_CODECS_AVR_URLCODE
void urlrawdecode(char *urlbuf)
{
char c;
char *dst;
dst = urlbuf;
while ((c = *urlbuf))
{
if (c == '+')
{
c = ' ';
}
if (c == '%')
{
urlbuf++;
c = *urlbuf;
urlbuf++;
c = (h2int(c) << 4) | h2int(*urlbuf);
}
*dst = c;
dst++;
urlbuf++;
}
*dst = '\0';
}
#endif
/****************************************************************************
* Name: urlrawencode
*
* Description:
* There must be enoug space in urlbuf. In the worst case that is 3 times
* the length of str
*
****************************************************************************/
#ifdef CONFIG_CODECS_AVR_URLCODE
void urlrawencode(char *str, char *urlbuf)
{
char c;
while ((c = *str))
{
if (c == ' ' || isalnum(c) || c == '_' || c == '-' || c == '.' || c == '~')
{
if (c == ' ')
{
c = '+';
}
*urlbuf = c;
str++;
urlbuf++;
continue;
}
*urlbuf = '%';
urlbuf++;
int2h(c, urlbuf);
urlbuf++;
urlbuf++;
str++;
}
*urlbuf = '\0';
}
#endif