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			hpavkeys.c
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/*====================================================================*
 *
 *   Copyright (c) 2013 Qualcomm Atheros, Inc.
 *
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or 
 *   without modification, are permitted (subject to the limitations 
 *   in the disclaimer below) provided that the following conditions 
 *   are met:
 *
 *   * Redistributions of source code must retain the above copyright 
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * 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.
 *
 *   * Neither the name of Qualcomm Atheros nor the names of 
 *     its contributors may be used to endorse or promote products 
 *     derived from this software without specific prior written 
 *     permission.
 *
 *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE 
 *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE 
 *   COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; 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.  
 *
 *--------------------------------------------------------------------*/

#define _GETOPT_H

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;stdio.h&gt;
#include &lt;ctype.h&gt;
#include &lt;string.h&gt;
#include &lt;unistd.h&gt;

/*====================================================================*
 *   custom header files;
 *--------------------------------------------------------------------*/

#include &quot;../tools/getoptv.h&quot;
#include &quot;../tools/putoptv.h&quot;
#include &quot;../tools/version.h&quot;
#include &quot;../tools/number.h&quot;
#include &quot;../tools/types.h&quot;
#include &quot;../tools/flags.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../key/HPAVKey.h&quot;
#include &quot;../key/SHA256.h&quot;

/*====================================================================*
 *   custom source files;
 *--------------------------------------------------------------------*/

#ifndef MAKEFILE
#include &quot;../tools/getoptv.c&quot;
#include &quot;../tools/putoptv.c&quot;
#include &quot;../tools/version.c&quot;
#include &quot;../tools/uintspec.c&quot;
#include &quot;../tools/todigit.c&quot;
#include &quot;../tools/hexout.c&quot;
#include &quot;../tools/error.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../key/HPAVKeyDAK.c&quot;
#include &quot;../key/HPAVKeyNMK.c&quot;
#include &quot;../key/HPAVKeyNID.c&quot;
#include &quot;../key/HPAVKeySHA.c&quot;
#include &quot;../key/HPAVKeyOut.c&quot;
#include &quot;../key/SHA256.c&quot;
#endif

/*====================================================================*
 *
 *   void generate (signed type, signed level, flag_t flags);
 *
 *   read pass phrases from stdin, compute the digest for each and
 *   print both on stdout; ignore illegal pass phrases;
 *
 *   a pass phrase consists of consecutive ASCII characters in the
 *   range 0x20 through 0x7F; other characters are noise and serve
 *   to delimit the phrase; phrases less than HPAVKEY_PHRASE_MIN characters
 *   or more than HPAVKEY_PHRASE_MAX characters are also illegal;
 *
 *   effectively, each text line is a candidate phrase where spaces
 *   are legal and significant; tabs characters are illegal and act
 *   as line breaks;
 *
 *   detected errors are reported along with the input line number;
 *
 *
 *--------------------------------------------------------------------*/

void generate (signed class, signed level, flag_t flags)

{
	uint8_t digest [SHA256_DIGEST_LENGTH];
	char phrase [BUFSIZ];
	char * sp = phrase;
	unsigned line = 1;
	signed c = getc (stdin);
	while (c != EOF)
	{
		if (!isprint (c))
		{
			if (c == '\n')
			{
				line++;
			}
			c = getc (stdin);
			continue;
		}
		sp = phrase;
		while (isprint (c))
		{
			if ((sp - phrase) &lt; (signed)(sizeof (phrase) - 1))
			{
				*sp++ = c;
			}
			c = getc (stdin);
		}
		if ((c != '\r') &amp;&amp; (c != '\n') &amp;&amp; (c != EOF))
		{
			error (0, ENOTSUP, &quot;Illegal characters on line %d&quot;, line);
			continue;
		}
		*sp = (char)(0);
		if (_anyset (flags, HPAVKEY_ENFORCE))
		{
			if ((sp - phrase) &lt; HPAVKEY_PHRASE_MIN)
			{
				error (0, ENOTSUP, &quot;Less than %d characters on line %d&quot;, HPAVKEY_PHRASE_MIN, line);
				continue;
			}
			if ((sp - phrase) &gt; HPAVKEY_PHRASE_MAX)
			{
				error (0, ENOTSUP, &quot;More than %d characters on line %d&quot;, HPAVKEY_PHRASE_MAX, line);
				continue;
			}
		}
		if (class == HPAVKEY_DAK)
		{
			HPAVKeyDAK (digest, phrase);
			HPAVKeyOut (digest, HPAVKEY_DAK_LEN, phrase, flags);
			continue;
		}
		if (class == HPAVKEY_NMK)
		{
			HPAVKeyNMK (digest, phrase);
			HPAVKeyOut (digest, HPAVKEY_NMK_LEN, phrase, flags);
			continue;
		}
		if (class == HPAVKEY_NID)
		{
			HPAVKeyNMK (digest, phrase);
			HPAVKeyNID (digest, digest, level);
			HPAVKeyOut (digest, HPAVKEY_NID_LEN, phrase, flags);
			continue;
		}
		HPAVKeySHA (digest, phrase);
		HPAVKeyOut (digest, HPAVKEY_SHA_LEN, phrase, flags);
	}
	return;
}

/*====================================================================*
 *
 *   int main (int argc, const char * argv []);
 *
 *
 *--------------------------------------------------------------------*/

#define DEFAULT_LEVEL 0

int main (int argc, const char * argv [])

{
	static const char * optv [] =
	{
		&quot;DeL:MNqv&quot;,
		&quot;file [file] [...]&quot;,
		&quot;HomePlug AV key generator&quot;,
		&quot;D\tconvert password to Device Access Key&quot;,
		&quot;e\tenforce HomePlug AV password rules&quot;,
		&quot;M\tconvert password to Network Membership Key&quot;,
		&quot;N\tconvert password to Network Identification Key&quot;,
		&quot;L n\tSecurity Level is (n) [&quot; LITERAL (DEFAULT_LEVEL) &quot;]&quot;,
		&quot;q\tquiet mode&quot;,
		&quot;v\tverbose mode&quot;,
		(const char *) (0)
	};
	flag_t flags = (flag_t)(0);
	signed type = 0;
	signed level = DEFAULT_LEVEL;
	signed c;
	optind = 1;
	while ((c = getoptv (argc, argv, optv)) != -1)
	{
		switch ((char) (c))
		{
		case 'D':
			type = HPAVKEY_DAK;
			break;
		case 'M':
			type = HPAVKEY_NMK;
			break;
		case 'N':
			type = HPAVKEY_NID;
			break;
		case 'L':
			level = (signed)(uintspec (optarg, 0, 1));
			break;
		case 'q':
			_setbits (flags, HPAVKEY_SILENCE);
			break;
		case 'v':
			_setbits (flags, HPAVKEY_VERBOSE);
			break;
		case 'e':
			_setbits (flags, HPAVKEY_ENFORCE);
			break;
		default:
			break;
		}
	}
	argc -= optind;
	argv += optind;
	if (!argc)
	{
		generate (type, level, flags);
	}
	while ((argc) &amp;&amp; (* argv))
	{
		if (!freopen (* argv, &quot;r&quot;, stdin))
		{
			error (0, errno, &quot;%s&quot;, * argv);
		}
		else
		{
			generate (type, level, flags);
		}
		argv++;
		argc--;
	}
	return (0);
}


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