/* NOCW *//* This version of crypt has been developed from my MIT compatable * DES library. * The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au * 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 lenght of password and can changed. I have * defined 24. */#include "des/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};#ifndef NOPROTOvoid fcrypt_body(DES_LONG *out,des_key_schedule ks,	DES_LONG Eswap0, DES_LONG Eswap1);#ifdef PERL5char *des_crypt(const char *buf,const char *salt);#elsechar *crypt(const char *buf,const char *salt);#endif#elsevoid fcrypt_body();#ifdef PERL5char *des_crypt();#elsechar *crypt();#endif#endif#ifdef PERL5char *des_crypt(buf,salt)#elsechar *crypt(buf,salt)#endifconst char *buf;const char *salt;	{	static char buff[14];	return(des_fcrypt(buf,salt,buff));	}char *des_fcrypt(buf,salt,ret)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 disbled	 * accounts effectivly had no passwd :-(. */	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;/* EAYr=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((des_cblock *)(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);	}