From: Bodo Möller <bodo@openssl.org>
Date: Thu, 14 Aug 2008 21:37:20 +0000 (+0000)
Subject: Don't use assertions to check application-provided arguments;
X-Git-Tag: OpenSSL_0_9_8i~21
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=cdd0f3b328cc84dbeb13081384905f98765a756f;p=oweals%2Fopenssl.git

Don't use assertions to check application-provided arguments;
and don't unnecessarily fail on input size 0.
---

diff --git a/crypto/evp/evp_enc.c b/crypto/evp/evp_enc.c
index a1904993bf..6e582c458d 100644
--- a/crypto/evp/evp_enc.c
+++ b/crypto/evp/evp_enc.c
@@ -279,7 +279,12 @@ int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
 	{
 	int i,j,bl;
 
-	OPENSSL_assert(inl > 0);
+	if (inl <= 0)
+		{
+		*outl = 0;
+		return inl == 0;
+		}
+
 	if(ctx->buf_len == 0 && (inl&(ctx->block_mask)) == 0)
 		{
 		if(ctx->cipher->do_cipher(ctx,out,in,inl))
@@ -381,10 +386,10 @@ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
 	int fix_len;
 	unsigned int b;
 
-	if (inl == 0)
+	if (inl <= 0)
 		{
-		*outl=0;
-		return 1;
+		*outl = 0;
+		return inl == 0;
 		}
 
 	if (ctx->flags & EVP_CIPH_NO_PADDING)