s->msg_callback(1, version, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg);
s->msg_callback(1, SSL2_VERSION, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg);
static int ssl23_client_hello(SSL *s)	{	unsigned char *buf;	unsigned char *p,*d;	int i,j,ch_len;	unsigned long Time,l;	int ssl2_compat;	int version = 0, version_major, version_minor;	SSL_COMP *comp;	int ret;	ssl2_compat = (s->options & SSL_OP_NO_SSLv2) ? 0 : 1;	if (!(s->options & SSL_OP_NO_TLSv1))		{		version = TLS1_VERSION;		}	else if (!(s->options & SSL_OP_NO_SSLv3))		{		version = SSL3_VERSION;		}	else if (!(s->options & SSL_OP_NO_SSLv2))		{		version = SSL2_VERSION;		}	buf=(unsigned char *)s->init_buf->data;	if (s->state == SSL23_ST_CW_CLNT_HELLO_A)		{#if 0		/* don't reuse session-id's */		if (!ssl_get_new_session(s,0))			{			return(-1);			}#endif		p=s->s3->client_random;		Time=time(NULL);			/* Time */		l2n(Time,p);		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)			return -1;		if (version == TLS1_VERSION)			{			version_major = TLS1_VERSION_MAJOR;			version_minor = TLS1_VERSION_MINOR;			}		else if (version == SSL3_VERSION)			{			version_major = SSL3_VERSION_MAJOR;			version_minor = SSL3_VERSION_MINOR;			}		else if (version == SSL2_VERSION)			{			version_major = SSL2_VERSION_MAJOR;			version_minor = SSL2_VERSION_MINOR;			}		else			{			SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_PROTOCOLS_AVAILABLE);			return(-1);			}		s->client_version = version;		if (ssl2_compat)			{			/* create SSL 2.0 compatible Client Hello */			/* two byte record header will be written last */			d = &(buf[2]);			p = d + 9; /* leave space for message type, version, individual length fields */			*(d++) = SSL2_MT_CLIENT_HELLO;			*(d++) = version_major;			*(d++) = version_minor;						/* Ciphers supported */			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),p,0);			if (i == 0)				{				/* no ciphers */				SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);				return -1;				}			s2n(i,d);			p+=i;						/* put in the session-id length (zero since there is no reuse) */#if 0			s->session->session_id_length=0;#endif			s2n(0,d);			if (s->options & SSL_OP_NETSCAPE_CHALLENGE_BUG)				ch_len=SSL2_CHALLENGE_LENGTH;			else				ch_len=SSL2_MAX_CHALLENGE_LENGTH;			/* write out sslv2 challenge */			if (SSL3_RANDOM_SIZE < ch_len)				i=SSL3_RANDOM_SIZE;			else				i=ch_len;			s2n(i,d);			memset(&(s->s3->client_random[0]),0,SSL3_RANDOM_SIZE);			if (RAND_pseudo_bytes(&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i) <= 0)				return -1;			memcpy(p,&(s->s3->client_random[SSL3_RANDOM_SIZE-i]),i);			p+=i;			i= p- &(buf[2]);			buf[0]=((i>>8)&0xff)|0x80;			buf[1]=(i&0xff);			/* number of bytes to write */			s->init_num=i+2;			s->init_off=0;			ssl3_finish_mac(s,&(buf[2]),i);			}		else			{			/* create Client Hello in SSL 3.0/TLS 1.0 format */			/* do the record header (5 bytes) and handshake message header (4 bytes) last */			d = p = &(buf[9]);						*(p++) = version_major;			*(p++) = version_minor;			/* Random stuff */			memcpy(p, s->s3->client_random, SSL3_RANDOM_SIZE);			p += SSL3_RANDOM_SIZE;			/* Session ID (zero since there is no reuse) */			*(p++) = 0;			/* Ciphers supported (using SSL 3.0/TLS 1.0 format) */			i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),ssl3_put_cipher_by_char);			if (i == 0)				{				SSLerr(SSL_F_SSL23_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);				return -1;				}			s2n(i,p);			p+=i;			/* COMPRESSION */			if (s->ctx->comp_methods == NULL)				j=0;			else				j=sk_SSL_COMP_num(s->ctx->comp_methods);			*(p++)=1+j;			for (i=0; i<j; i++)				{				comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);				*(p++)=comp->id;				}			*(p++)=0; /* Add the NULL method */						l = p-d;			*p = 42;			/* fill in 4-byte handshake header */			d=&(buf[5]);			*(d++)=SSL3_MT_CLIENT_HELLO;			l2n3(l,d);			l += 4;			if (l > SSL3_RT_MAX_PLAIN_LENGTH)				{				SSLerr(SSL_F_SSL23_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);				return -1;				}						/* fill in 5-byte record header */			d=buf;			*(d++) = SSL3_RT_HANDSHAKE;			*(d++) = version_major;			*(d++) = version_minor; /* arguably we should send the *lowest* suported version here			                         * (indicating, e.g., TLS 1.0 in "SSL 3.0 format") */			s2n((int)l,d);			/* number of bytes to write */			s->init_num=p-buf;			s->init_off=0;			ssl3_finish_mac(s,&(buf[5]), s->init_num - 5);			}		s->state=SSL23_ST_CW_CLNT_HELLO_B;		s->init_off=0;		}	/* SSL3_ST_CW_CLNT_HELLO_B */	ret = ssl23_write_bytes(s);	if ((ret >= 2) && s->msg_callback)		{		/* Client Hello has been sent; tell msg_callback */		if (ssl2_compat)			s->msg_callback(1, version, 0, s->init_buf->data+2, ret-2, s, s->msg_callback_arg);		else			s->msg_callback(1, version, SSL3_RT_HANDSHAKE, s->init_buf->data+5, ret-5, s, s->msg_callback_arg);		}	return ret;	}