From: Mark J. Cox <mark@openssl.org>
Date: Sun, 31 Jan 1999 12:14:39 +0000 (+0000)
Subject: Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
X-Git-Tag: OpenSSL_0_9_2b~199
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=351d899878c567448b9b9b6d715ec828c888f3c2;p=oweals%2Fopenssl.git
Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
Submitted by: Eric A Young - from changes to C2Net SSLeay
Reviewed by: Mark Cox
PR:
---
diff --git a/CHANGES b/CHANGES
index 4cd84ccc8e..9c33fbe2c7 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,9 @@
Changes between 0.9.1c and 0.9.2
+ *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
+ [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
+
*) Make sure `make rehash' target really finds the `openssl' program.
[Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
diff --git a/crypto/evp/digest.c b/crypto/evp/digest.c
index d65f0036f7..7ef0e73b5a 100644
--- a/crypto/evp/digest.c
+++ b/crypto/evp/digest.c
@@ -87,3 +87,13 @@ unsigned int *size;
*size=ctx->digest->md_size;
memset(&(ctx->md),0,sizeof(ctx->md));
}
+
+int EVP_MD_CTX_copy(EVP_MD_CTX *out, EVP_MD_CTX *in)
+{
+ if ((in == NULL) || (in->digest == NULL)) {
+ EVPerr(EVP_F_EVP_MD_CTX_COPY,EVP_R_INPUT_NOT_INITALISED);
+ return 0;
+ }
+ memcpy((char *)out,(char *)in,in->digest->ctx_size);
+ return 1;
+}
diff --git a/crypto/evp/evp.err b/crypto/evp/evp.err
index b6ed829482..c2470f678c 100644
--- a/crypto/evp/evp.err
+++ b/crypto/evp/evp.err
@@ -11,6 +11,7 @@
#define EVP_F_EVP_SIGNFINAL 107
#define EVP_F_EVP_VERIFYFINAL 108
#define EVP_F_RC2_MAGIC_TO_METH 109
+#define EVP_F_EVP_MD_CTX_COPY 110
/* Reason codes. */
#define EVP_R_BAD_DECRYPT 100
@@ -24,3 +25,4 @@
#define EVP_R_UNSUPPORTED_KEY_SIZE 108
#define EVP_R_WRONG_FINAL_BLOCK_LENGTH 109
#define EVP_R_WRONG_PUBLIC_KEY_TYPE 110
+#define EVP_R_INPUT_NOT_INITALISED 111
diff --git a/crypto/evp/evp.h b/crypto/evp/evp.h
index e6296ce834..c780543a32 100644
--- a/crypto/evp/evp.h
+++ b/crypto/evp/evp.h
@@ -460,6 +460,7 @@ typedef struct evp_Encode_Ctx_st
#ifndef NOPROTO
+int EVP_MD_CTX_copy(EVP_MD_CTX *out,EVP_MD_CTX *in);
void EVP_DigestInit(EVP_MD_CTX *ctx, EVP_MD *type);
void EVP_DigestUpdate(EVP_MD_CTX *ctx,unsigned char *d,unsigned int cnt);
void EVP_DigestFinal(EVP_MD_CTX *ctx,unsigned char *md,unsigned int *s);
@@ -626,6 +627,7 @@ int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c,ASN1_TYPE *type);
#else
+int EVP_MD_CTX_copy();
void EVP_DigestInit();
void EVP_DigestUpdate();
void EVP_DigestFinal();
@@ -782,6 +784,7 @@ int EVP_CIPHER_get_asn1_iv();
#define EVP_F_EVP_SIGNFINAL 107
#define EVP_F_EVP_VERIFYFINAL 108
#define EVP_F_RC2_MAGIC_TO_METH 109
+#define EVP_F_EVP_MD_CTX_COPY 110
/* Reason codes. */
#define EVP_R_BAD_DECRYPT 100
@@ -795,6 +798,7 @@ int EVP_CIPHER_get_asn1_iv();
#define EVP_R_UNSUPPORTED_KEY_SIZE 108
#define EVP_R_WRONG_FINAL_BLOCK_LENGTH 109
#define EVP_R_WRONG_PUBLIC_KEY_TYPE 110
+#define EVP_R_INPUT_NOT_INITALISED 111
#ifdef __cplusplus
}
diff --git a/crypto/evp/evp_err.c b/crypto/evp/evp_err.c
index c7caa3b13b..19b3a1896e 100644
--- a/crypto/evp/evp_err.c
+++ b/crypto/evp/evp_err.c
@@ -73,6 +73,7 @@ static ERR_STRING_DATA EVP_str_functs[]=
{ERR_PACK(0,EVP_F_EVP_SIGNFINAL,0), "EVP_SignFinal"},
{ERR_PACK(0,EVP_F_EVP_VERIFYFINAL,0), "EVP_VerifyFinal"},
{ERR_PACK(0,EVP_F_RC2_MAGIC_TO_METH,0), "RC2_MAGIC_TO_METH"},
+{ERR_PACK(0,EVP_F_EVP_MD_CTX_COPY,0), "EVP_MD_CTX_copy"},
{0,NULL},
};
@@ -89,6 +90,7 @@ static ERR_STRING_DATA EVP_str_reasons[]=
{EVP_R_UNSUPPORTED_KEY_SIZE ,"unsupported key size"},
{EVP_R_WRONG_FINAL_BLOCK_LENGTH ,"wrong final block length"},
{EVP_R_WRONG_PUBLIC_KEY_TYPE ,"wrong public key type"},
+{EVP_R_INPUT_NOT_INITALISED ,"input not initalised"},
{0,NULL},
};
diff --git a/crypto/evp/p_sign.c b/crypto/evp/p_sign.c
index 073270ce31..4b34206083 100644
--- a/crypto/evp/p_sign.c
+++ b/crypto/evp/p_sign.c
@@ -91,7 +91,7 @@ EVP_PKEY *pkey;
MS_STATIC EVP_MD_CTX tmp_ctx;
*siglen=0;
- memcpy(&tmp_ctx,ctx,sizeof(EVP_MD_CTX));
+ EVP_MD_CTX_copy(&tmp_ctx,ctx);
EVP_DigestFinal(&tmp_ctx,&(m[0]),&m_len);
for (i=0; i<4; i++)
{
diff --git a/crypto/evp/p_verify.c b/crypto/evp/p_verify.c
index 8d727d8f02..0a9bb05a74 100644
--- a/crypto/evp/p_verify.c
+++ b/crypto/evp/p_verify.c
@@ -88,7 +88,7 @@ EVP_PKEY *pkey;
EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE);
return(-1);
}
- memcpy(&tmp_ctx,ctx,sizeof(EVP_MD_CTX));
+ EVP_MD_CTX_copy(&tmp_ctx,ctx);
EVP_DigestFinal(&tmp_ctx,&(m[0]),&m_len);
if (ctx->digest->verify == NULL)
{