Make EVP_Digest*() routines return a value.

TODO: update docs, and make soe other routines
which use EVP_Digest*() check return codes.

2 files changed, 11 insertions, 8 deletions

diff --git a/crypto/md2/md2.h b/crypto/md2/md2.h
index 5494afd6d8..ad9241455c 100644
--- a/crypto/md2/md2.h
+++ b/crypto/md2/md2.h
@@ -80,9 +80,9 @@ typedef struct MD2state_st
 	} MD2_CTX;
 
 const char *MD2_options(void);
-void MD2_Init(MD2_CTX *c);
-void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len);
-void MD2_Final(unsigned char *md, MD2_CTX *c);
+int MD2_Init(MD2_CTX *c);
+int MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len);
+int MD2_Final(unsigned char *md, MD2_CTX *c);
 unsigned char *MD2(const unsigned char *d, unsigned long n,unsigned char *md);
 #ifdef  __cplusplus
 }
diff --git a/crypto/md2/md2_dgst.c b/crypto/md2/md2_dgst.c
index 608baefa8f..e25dd00e02 100644
--- a/crypto/md2/md2_dgst.c
+++ b/crypto/md2/md2_dgst.c
@@ -115,19 +115,20 @@ const char *MD2_options(void)
 		return("md2(int)");
 	}
 
-void MD2_Init(MD2_CTX *c)
+int MD2_Init(MD2_CTX *c)
 	{
 	c->num=0;
 	memset(c->state,0,MD2_BLOCK*sizeof(MD2_INT));
 	memset(c->cksm,0,MD2_BLOCK*sizeof(MD2_INT));
 	memset(c->data,0,MD2_BLOCK);
+	return 1;
 	}
 
-void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len)
+int MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len)
 	{
 	register UCHAR *p;
 
-	if (len == 0) return;
+	if (len == 0) return 1;
 
 	p=c->data;
 	if (c->num != 0)
@@ -146,7 +147,7 @@ void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len)
 			memcpy(&(p[c->num]),data,(int)len);
 			/* data+=len; */
 			c->num+=(int)len;
-			return;
+			return 1;
 			}
 		}
 	/* we now can process the input data in blocks of MD2_BLOCK
@@ -159,6 +160,7 @@ void MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len)
 		}
 	memcpy(p,data,(int)len);
 	c->num=(int)len;
+	return 1;
 	}
 
 static void md2_block(MD2_CTX *c, const unsigned char *d)
@@ -197,7 +199,7 @@ static void md2_block(MD2_CTX *c, const unsigned char *d)
 	memset(state,0,48*sizeof(MD2_INT));
 	}
 
-void MD2_Final(unsigned char *md, MD2_CTX *c)
+int MD2_Final(unsigned char *md, MD2_CTX *c)
 	{
 	int i,v;
 	register UCHAR *cp;
@@ -219,5 +221,6 @@ void MD2_Final(unsigned char *md, MD2_CTX *c)
 	for (i=0; i<16; i++)
 		md[i]=(UCHAR)(p1[i]&0xff);
 	memset((char *)&c,0,sizeof(c));
+	return 1;
 	}