memset, memcpy, sizeof consistency fixes

[openssl.git] / crypto / sha / sha1_one.c

diff --git a/crypto/sha/sha1_one.c b/crypto/sha/sha1_one.c
index cf381fa39386a5db80691a8c3b297cc0635206e9..4a591156648e075450d6f2568aa76d092853d421 100644 (file)
--- a/crypto/sha/sha1_one.c
+++ b/crypto/sha/sha1_one.c
@@ -1,25 +1,25 @@
 /* crypto/sha/sha1_one.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* 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:
@@ -34,10 +34,10 @@
  *     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 
+ * 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
@@ -49,7 +49,7 @@
  * 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
@@ -57,21 +57,21 @@
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
-#include "sha.h"
+#include <string.h>
+#include <openssl/crypto.h>
+#include <openssl/sha.h>
 
-unsigned char *SHA1(d, n, md)
-unsigned char *d;
-unsigned long n;
-unsigned char *md;
-       {
-       SHA_CTX c;
-       static unsigned char m[SHA_DIGEST_LENGTH];
+unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
+{
+    SHA_CTX c;
+    static unsigned char m[SHA_DIGEST_LENGTH];
 
-       if (md == NULL) md=m;
-       SHA1_Init(&c);
-       SHA1_Update(&c,d,n);
-       SHA1_Final(md,&c);
-       memset(&c,0,sizeof(c));
-       return(md);
-       }
+    if (md == NULL)
+        md = m;
+    if (!SHA1_Init(&c))
+        return NULL;
+    SHA1_Update(&c, d, n);
+    SHA1_Final(md, &c);
+    OPENSSL_cleanse(&c, sizeof(c));
+    return (md);
+}