#include "ssh.h" struct CipherState{	RC4state enc;	RC4state dec;}; static CipherState*initrc4(Conn *c, int isserver){	CipherState *cs; 	cs = emalloc(sizeof(CipherState));	if(isserver){		setupRC4state(&cs->enc, c->sesskey, 16);		setupRC4state(&cs->dec, c->sesskey+16, 16);	}else{		setupRC4state(&cs->dec, c->sesskey, 16);		setupRC4state(&cs->enc, c->sesskey+16, 16);	}	return cs;} static voidencryptrc4(CipherState *cs, uchar *buf, int nbuf){	rc4(&cs->enc, buf, nbuf);} static voiddecryptrc4(CipherState *cs, uchar *buf, int nbuf){	rc4(&cs->dec, buf, nbuf);} Cipher cipherrc4 ={	SSH_CIPHER_RC4,	"rc4",	initrc4,	encryptrc4,	decryptrc4,};