PR: 1946

[openssl.git] / crypto / md32_common.h

diff --git a/crypto/md32_common.h b/crypto/md32_common.h
index 8fda6ffded85dbb002424011eb5ca875cd784fc3..279916fa5902b918543f63540aa1315ad992354f 100644 (file)
--- a/crypto/md32_common.h
+++ b/crypto/md32_common.h
@@ -1,6 +1,6 @@
 /* crypto/md32_common.h */
 /* ====================================================================
- * Copyright (c) 1999-2006 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1999-2007 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
@@ -293,7 +293,7 @@ int HASH_UPDATE (HASH_CTX *c, const void *data_, size_t len)
         * Wei Dai <weidai@eskimo.com> for pointing it out. */
        if (l < c->Nl) /* overflow */
                c->Nh++;
-       c->Nh+=(len>>29);       /* might cause compiler warning on 16-bit */
+       c->Nh+=(HASH_LONG)(len>>29);    /* might cause compiler warning on 16-bit */
        c->Nl=l;
 
        n = c->num;
@@ -301,7 +301,7 @@ int HASH_UPDATE (HASH_CTX *c, const void *data_, size_t len)
                {
                p=(unsigned char *)c->data;
 
-               if ((n+len) >= HASH_CBLOCK)
+               if (len >= HASH_CBLOCK || len+n >= HASH_CBLOCK)
                        {
                        memcpy (p+n,data,HASH_CBLOCK-n);
                        HASH_BLOCK_DATA_ORDER (c,p,1);
@@ -331,7 +331,7 @@ int HASH_UPDATE (HASH_CTX *c, const void *data_, size_t len)
        if (len != 0)
                {
                p = (unsigned char *)c->data;
-               c->num = len;
+               c->num = (unsigned int)len;
                memcpy (p,data,len);
                }
        return 1;
@@ -354,9 +354,11 @@ int HASH_FINAL (unsigned char *md, HASH_CTX *c)
 
        if (n > (HASH_CBLOCK-8))
                {
+               memset (p+n,0,HASH_CBLOCK-n);
+               n=0;
                HASH_BLOCK_DATA_ORDER (c,p,1);
-               memset (p,0,HASH_CBLOCK);
                }
+       memset (p+n,0,HASH_CBLOCK-8-n);
 
        p += HASH_CBLOCK-8;
 #if   defined(DATA_ORDER_IS_BIG_ENDIAN)