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diff --git a/openssl/crypto/evp/bio_md.c b/openssl/crypto/evp/bio_md.c
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+++ b/openssl/crypto/evp/bio_md.c
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+/* crypto/evp/bio_md.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * 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.]
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+
+/*
+ * BIO_put and BIO_get both add to the digest, BIO_gets returns the digest
+ */
+
+static int md_write(BIO *h, char const *buf, int num);
+static int md_read(BIO *h, char *buf, int size);
+/*
+ * static int md_puts(BIO *h, const char *str);
+ */
+static int md_gets(BIO *h, char *str, int size);
+static long md_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static int md_new(BIO *h);
+static int md_free(BIO *data);
+static long md_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
+
+static BIO_METHOD methods_md = {
+    BIO_TYPE_MD, "message digest",
+    md_write,
+    md_read,
+    NULL,                       /* md_puts, */
+    md_gets,
+    md_ctrl,
+    md_new,
+    md_free,
+    md_callback_ctrl,
+};
+
+BIO_METHOD *BIO_f_md(void)
+{
+    return (&methods_md);
+}
+
+static int md_new(BIO *bi)
+{
+    EVP_MD_CTX *ctx;
+
+    ctx = EVP_MD_CTX_create();
+    if (ctx == NULL)
+        return (0);
+
+    bi->init = 0;
+    bi->ptr = (char *)ctx;
+    bi->flags = 0;
+    return (1);
+}
+
+static int md_free(BIO *a)
+{
+    if (a == NULL)
+        return (0);
+    EVP_MD_CTX_destroy(a->ptr);
+    a->ptr = NULL;
+    a->init = 0;
+    a->flags = 0;
+    return (1);
+}
+
+static int md_read(BIO *b, char *out, int outl)
+{
+    int ret = 0;
+    EVP_MD_CTX *ctx;
+
+    if (out == NULL)
+        return (0);
+    ctx = b->ptr;
+
+    if ((ctx == NULL) || (b->next_bio == NULL))
+        return (0);
+
+    ret = BIO_read(b->next_bio, out, outl);
+    if (b->init) {
+        if (ret > 0) {
+            if (EVP_DigestUpdate(ctx, (unsigned char *)out,
+                                 (unsigned int)ret) <= 0)
+                return (-1);
+        }
+    }
+    BIO_clear_retry_flags(b);
+    BIO_copy_next_retry(b);
+    return (ret);
+}
+
+static int md_write(BIO *b, const char *in, int inl)
+{
+    int ret = 0;
+    EVP_MD_CTX *ctx;
+
+    if ((in == NULL) || (inl <= 0))
+        return (0);
+    ctx = b->ptr;
+
+    if ((ctx != NULL) && (b->next_bio != NULL))
+        ret = BIO_write(b->next_bio, in, inl);
+    if (b->init) {
+        if (ret > 0) {
+            if (!EVP_DigestUpdate(ctx, (const unsigned char *)in,
+                                  (unsigned int)ret)) {
+                BIO_clear_retry_flags(b);
+                return 0;
+            }
+        }
+    }
+    if (b->next_bio != NULL) {
+        BIO_clear_retry_flags(b);
+        BIO_copy_next_retry(b);
+    }
+    return (ret);
+}
+
+static long md_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+    EVP_MD_CTX *ctx, *dctx, **pctx;
+    const EVP_MD **ppmd;
+    EVP_MD *md;
+    long ret = 1;
+    BIO *dbio;
+
+    ctx = b->ptr;
+
+    switch (cmd) {
+    case BIO_CTRL_RESET:
+        if (b->init)
+            ret = EVP_DigestInit_ex(ctx, ctx->digest, NULL);
+        else
+            ret = 0;
+        if (ret > 0)
+            ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+        break;
+    case BIO_C_GET_MD:
+        if (b->init) {
+            ppmd = ptr;
+            *ppmd = ctx->digest;
+        } else
+            ret = 0;
+        break;
+    case BIO_C_GET_MD_CTX:
+        pctx = ptr;
+        *pctx = ctx;
+        b->init = 1;
+        break;
+    case BIO_C_SET_MD_CTX:
+        if (b->init)
+            b->ptr = ptr;
+        else
+            ret = 0;
+        break;
+    case BIO_C_DO_STATE_MACHINE:
+        BIO_clear_retry_flags(b);
+        ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+        BIO_copy_next_retry(b);
+        break;
+
+    case BIO_C_SET_MD:
+        md = ptr;
+        ret = EVP_DigestInit_ex(ctx, md, NULL);
+        if (ret > 0)
+            b->init = 1;
+        break;
+    case BIO_CTRL_DUP:
+        dbio = ptr;
+        dctx = dbio->ptr;
+        if (!EVP_MD_CTX_copy_ex(dctx, ctx))
+            return 0;
+        b->init = 1;
+        break;
+    default:
+        ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+        break;
+    }
+    return (ret);
+}
+
+static long md_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
+{
+    long ret = 1;
+
+    if (b->next_bio == NULL)
+        return (0);
+    switch (cmd) {
+    default:
+        ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
+        break;
+    }
+    return (ret);
+}
+
+static int md_gets(BIO *bp, char *buf, int size)
+{
+    EVP_MD_CTX *ctx;
+    unsigned int ret;
+
+    ctx = bp->ptr;
+    if (size < ctx->digest->md_size)
+        return (0);
+    if (EVP_DigestFinal_ex(ctx, (unsigned char *)buf, &ret) <= 0)
+        return -1;
+
+    return ((int)ret);
+}
+
+/*-
+static int md_puts(bp,str)
+BIO *bp;
+char *str;
+        {
+        return(-1);
+        }
+*/