X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbio%2Fbf_buff.c;h=255a4d476e20ae411533b69ef06aa359987b9be9;hb=624265c60e07f8e5f251d0f5b79e34cf0221af73;hp=361d26a5b73dd6a23d6698005b9bb480efc66e8b;hpb=a146ae55ba479a5c7aa2a6afba1b2b93102a152c;p=oweals%2Fopenssl.git

diff --git a/crypto/bio/bf_buff.c b/crypto/bio/bf_buff.c
index 361d26a5b7..255a4d476e 100644
--- a/crypto/bio/bf_buff.c
+++ b/crypto/bio/bf_buff.c
@@ -1,58 +1,10 @@
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
 #include <stdio.h>
@@ -73,7 +25,11 @@ static long buffer_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
 static const BIO_METHOD methods_buffer = {
     BIO_TYPE_BUFFER,
     "buffer",
+    /* TODO: Convert to new style write function */
+    bwrite_conv,
     buffer_write,
+    /* TODO: Convert to new style read function */
+    bread_conv,
     buffer_read,
     buffer_puts,
     buffer_gets,
@@ -299,6 +255,11 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
             return (0);
         ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
         break;
+    case BIO_CTRL_EOF:
+        if (ctx->ibuf_len > 0)
+            return 0;
+        ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+        break;
     case BIO_CTRL_INFO:
         ret = (long)ctx->obuf_len;
         break;
@@ -413,7 +374,6 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
             } else {
                 ctx->obuf_len = 0;
                 ctx->obuf_off = 0;
-                ret = 1;
                 break;
             }
         }
@@ -425,6 +385,17 @@ static long buffer_ctrl(BIO *b, int cmd, long num, void *ptr)
             !BIO_set_write_buffer_size(dbio, ctx->obuf_size))
             ret = 0;
         break;
+    case BIO_CTRL_PEEK:
+        /* Ensure there's stuff in the input buffer */
+        {
+            char fake_buf[1];
+            (void)buffer_read(b, fake_buf, 0);
+        }
+        if (num > ctx->ibuf_len)
+            num = ctx->ibuf_len;
+        memcpy(ptr, &(ctx->ibuf[ctx->ibuf_off]), num);
+        ret = num;
+        break;
     default:
         if (b->next_bio == NULL)
             return (0);