register unsigned char *in;
register const unsigned char *in;
void des_ede3_ofb64_encrypt(in, out, length, k1,k2,k3, ivec, num)register unsigned char *in;register unsigned char *out;long length;des_key_schedule k1,k2,k3;des_cblock (*ivec);int *num;	{	register DES_LONG v0,v1;	register int n= *num;	register long l=length;	des_cblock d;	register char *dp;	DES_LONG ti[2];	unsigned char *iv;	int save=0;	iv=(unsigned char *)ivec;	c2l(iv,v0);	c2l(iv,v1);	ti[0]=v0;	ti[1]=v1;	dp=(char *)d;	l2c(v0,dp);	l2c(v1,dp);	while (l--)		{		if (n == 0)			{			/* ti[0]=v0; */			/* ti[1]=v1; */			des_encrypt3((DES_LONG *)ti,k1,k2,k3);			v0=ti[0];			v1=ti[1];			dp=(char *)d;			l2c(v0,dp);			l2c(v1,dp);			save++;			}		*(out++)= *(in++)^d[n];		n=(n+1)&0x07;		}	if (save)		{/*		v0=ti[0];		v1=ti[1];*/		iv=(unsigned char *)ivec;		l2c(v0,iv);		l2c(v1,iv);		}	v0=v1=ti[0]=ti[1]=0;	*num=n;	}