/* NOCW */

/*

 © Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.

 */

#include <stdio.h>

#ifdef _OSD_POSIX

#ifndef CHARSET_EBCDIC

#define CHARSET_EBCDIC 1

#endif

#endif

#ifdef CHARSET_EBCDIC

#include <openssl/ebcdic.h>

#endif

#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))

#include "libcrypto_wsd_macros.h"

#include "libcrypto_wsd.h"

#endif

/* This version of crypt has been developed from my MIT compatible

 * DES library.

 * Eric Young (eay@cryptsoft.com)

 */

/* Modification by Jens Kupferschmidt (Cu)

 * I have included directive PARA for shared memory computers.

 * I have included a directive LONGCRYPT to using this routine to cipher

 * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN

 * definition is the maximum of length of password and can changed. I have

 * defined 24.

 */

#include "des_locl.h"

/* Added more values to handle illegal salt values the way normal

 * crypt() implementations do.  The patch was sent by 

 * Bjorn Gronvall <bg@sics.se>

 */

static unsigned const char con_salt[128]={

0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,

0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1,

0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,

0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,

0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,

0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01,

0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,

0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A,

0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12,

0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,

0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22,

0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24,

0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,

0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,

0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,

0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,

};

static unsigned const char cov_2char[64]={

0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,

0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,

0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,

0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,

0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,

0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,

0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,

0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A

};

#ifdef EMULATOR	

GET_STATIC_ARRAY_FROM_TLS(buff,fcrypt,char)

#define buff (GET_WSD_VAR_NAME(buff,fcrypt, s)())

#endif

EXPORT_C char *DES_crypt(const char *buf, const char *salt)

	{

#ifndef EMULATOR	

	static char buff[14];

#endif

#ifndef CHARSET_EBCDIC

	return(DES_fcrypt(buf,salt,buff));

#else

	char e_salt[2+1];

	char e_buf[32+1];	/* replace 32 by 8 ? */

	char *ret;

	/* Copy at most 2 chars of salt */

	if ((e_salt[0] = salt[0]) != '\0')

	    e_salt[1] = salt[1];

	/* Copy at most 32 chars of password */

	strncpy (e_buf, buf, sizeof(e_buf));

	/* Make sure we have a delimiter */

	e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0';

	/* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */

	ebcdic2ascii(e_salt, e_salt, sizeof e_salt);

	/* Convert the cleartext password to ASCII */

	ebcdic2ascii(e_buf, e_buf, sizeof e_buf);

	/* Encrypt it (from/to ASCII) */

	ret = DES_fcrypt(e_buf,e_salt,buff);

	/* Convert the result back to EBCDIC */

	ascii2ebcdic(ret, ret, strlen(ret));

	return ret;

#endif

	}

EXPORT_C char *DES_fcrypt(const char *buf, const char *salt, char *ret)

	{

	unsigned int i,j,x,y;

	DES_LONG Eswap0,Eswap1;

	DES_LONG out[2],ll;

	DES_cblock key;

	DES_key_schedule ks;

	unsigned char bb[9];

	unsigned char *b=bb;

	unsigned char c,u;

	/* eay 25/08/92

	 * If you call crypt("pwd","*") as often happens when you

	 * have * as the pwd field in /etc/passwd, the function

	 * returns *\0XXXXXXXXX

	 * The \0 makes the string look like * so the pwd "*" would

	 * crypt to "*".  This was found when replacing the crypt in

	 * our shared libraries.  People found that the disabled

	 * accounts effectively had no passwd :-(. */

#ifndef CHARSET_EBCDIC

	x=ret[0]=((salt[0] == '\0')?'A':salt[0]);

	Eswap0=con_salt[x]<<2;

	x=ret[1]=((salt[1] == '\0')?'A':salt[1]);

	Eswap1=con_salt[x]<<6;

#else

	x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]);

	Eswap0=con_salt[x]<<2;

	x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]);

	Eswap1=con_salt[x]<<6;

#endif

/* EAY

r=strlen(buf);

r=(r+7)/8;

*/

	for (i=0; i<8; i++)

		{

		c= *(buf++);

		if (!c) break;

		key[i]=(c<<1);

		}

	for (; i<8; i++)

		key[i]=0;

	DES_set_key_unchecked(&key,&ks);

	fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1);

	ll=out[0]; l2c(ll,b);

	ll=out[1]; l2c(ll,b);

	y=0;

	u=0x80;

	bb[8]=0;

	for (i=2; i<13; i++)

		{

		c=0;

		for (j=0; j<6; j++)

			{

			c<<=1;

			if (bb[y] & u) c|=1;

			u>>=1;

			if (!u)

				{

				y++;

				u=0x80;

				}

			}

		ret[i]=cov_2char[c];

		}

	ret[13]='\0';

	return(ret);

	}