First step towards SSL_peek fix.

1 files changed, 63 insertions, 27 deletions

diff --git a/ssl/s3_lib.c b/ssl/s3_lib.c
index f8df4ee226..5908bb94f8 100644
--- a/ssl/s3_lib.c
+++ b/ssl/s3_lib.c
@@ -55,6 +55,59 @@
  * copied and put under another distribution licence
  * [including the GNU Public Licence.]
  */
+/* ====================================================================
+ * Copyright (c) 1998-2000 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
 
 #include <stdio.h>
 #include <openssl/md5.h>
@@ -1282,7 +1335,7 @@ int ssl3_shutdown(SSL *s)
 	else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN))
 		{
 		/* If we are waiting for a close from our peer, we are closed */
-		ssl3_read_bytes(s,0,NULL,0);
+		ssl3_read_bytes(s,0,NULL,0,0);
 		}
 
 	if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) &&
@@ -1345,14 +1398,14 @@ int ssl3_write(SSL *s, const void *buf, int len)
 	return(ret);
 	}
 
-int ssl3_read(SSL *s, void *buf, int len)
+static int ssl3_read_internal(SSL *s, void *buf, int len, int peek)
 	{
 	int ret;
 	
 	clear_sys_error();
 	if (s->s3->renegotiate) ssl3_renegotiate_check(s);
 	s->s3->in_read_app_data=1;
-	ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
+	ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len,peek);
 	if ((ret == -1) && (s->s3->in_read_app_data == 0))
 		{
 		/* ssl3_read_bytes decided to call s->handshake_func, which
@@ -1362,7 +1415,7 @@ int ssl3_read(SSL *s, void *buf, int len)
 		 * by resetting 'in_read_app_data', strangely); so disable
 		 * handshake processing and try to read application data again. */
 		s->in_handshake++;
-		ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len);
+		ret=ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len,peek);
 		s->in_handshake--;
 		}
 	else
@@ -1371,31 +1424,14 @@ int ssl3_read(SSL *s, void *buf, int len)
 	return(ret);
 	}
 
-int ssl3_peek(SSL *s, char *buf, int len)
+int ssl3_read(SSL *s, void *buf, int len)
 	{
-#if 1
-	SSLerr(SSL_F_SSL3_PEEK, SSL_R_FIXME); /* function is totally broken */
-	return -1;
-#else	
-	SSL3_RECORD *rr;
-	int n;
-
-	rr= &(s->s3->rrec);
-	if ((rr->length == 0) || (rr->type != SSL3_RT_APPLICATION_DATA))
-		{
-		n=ssl3_read(s,buf,1);
-		if (n <= 0) return(n);
-		rr->length++;
-		rr->off--;
-		}
+	return ssl3_read_internal(s, buf, len, 0);
+	}
 
-	if ((unsigned int)len > rr->length)
-		n=rr->length;
-	else
-		n=len;
-	memcpy(buf,&(rr->data[rr->off]),(unsigned int)n);
-	return(n);
-#endif
+int ssl3_peek(SSL *s, char *buf, int len)
+	{
+	return ssl3_read_internal(s, buf, len, 0);
 	}
 
 int ssl3_renegotiate(SSL *s)