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, 10 insertions, 7 deletions

diff --git a/crypto/mdc2/mdc2.h b/crypto/mdc2/mdc2.h
index a23f58afaf..c4a81831bf 100644
--- a/crypto/mdc2/mdc2.h
+++ b/crypto/mdc2/mdc2.h
@@ -81,9 +81,9 @@ typedef struct mdc2_ctx_st
 	} MDC2_CTX;
 
 
-void MDC2_Init(MDC2_CTX *c);
-void MDC2_Update(MDC2_CTX *c, const unsigned char *data, unsigned long len);
-void MDC2_Final(unsigned char *md, MDC2_CTX *c);
+int MDC2_Init(MDC2_CTX *c);
+int MDC2_Update(MDC2_CTX *c, const unsigned char *data, unsigned long len);
+int MDC2_Final(unsigned char *md, MDC2_CTX *c);
 unsigned char *MDC2(const unsigned char *d, unsigned long n,
 	unsigned char *md);
 
diff --git a/crypto/mdc2/mdc2dgst.c b/crypto/mdc2/mdc2dgst.c
index c630a24c2e..3a873d147a 100644
--- a/crypto/mdc2/mdc2dgst.c
+++ b/crypto/mdc2/mdc2dgst.c
@@ -75,15 +75,16 @@
 			*((c)++)=(unsigned char)(((l)>>24L)&0xff))
 
 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, unsigned int len);
-void MDC2_Init(MDC2_CTX *c)
+int MDC2_Init(MDC2_CTX *c)
 	{
 	c->num=0;
 	c->pad_type=1;
 	memset(&(c->h[0]),0x52,MDC2_BLOCK);
 	memset(&(c->hh[0]),0x25,MDC2_BLOCK);
+	return 1;
 	}
 
-void MDC2_Update(MDC2_CTX *c, const unsigned char *in, unsigned long len)
+int MDC2_Update(MDC2_CTX *c, const unsigned char *in, unsigned long len)
 	{
 	int i,j;
 
@@ -95,7 +96,7 @@ void MDC2_Update(MDC2_CTX *c, const unsigned char *in, unsigned long len)
 			/* partial block */
 			memcpy(&(c->data[i]),in,(int)len);
 			c->num+=(int)len;
-			return;
+			return 1;
 			}
 		else
 			{
@@ -116,6 +117,7 @@ void MDC2_Update(MDC2_CTX *c, const unsigned char *in, unsigned long len)
 		memcpy(&(c->data[0]),&(in[i]),j);
 		c->num=j;
 		}
+	return 1;
 	}
 
 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, unsigned int len)
@@ -156,7 +158,7 @@ static void mdc2_body(MDC2_CTX *c, const unsigned char *in, unsigned int len)
 		}
 	}
 
-void MDC2_Final(unsigned char *md, MDC2_CTX *c)
+int MDC2_Final(unsigned char *md, MDC2_CTX *c)
 	{
 	int i,j;
 
@@ -171,6 +173,7 @@ void MDC2_Final(unsigned char *md, MDC2_CTX *c)
 		}
 	memcpy(md,(char *)c->h,MDC2_BLOCK);
 	memcpy(&(md[MDC2_BLOCK]),(char *)c->hh,MDC2_BLOCK);
+	return 1;
 	}
 
 #undef TEST