Fix warnings.

crypto/evp/encode.c

@@ -185,7 +185,7 @@ void EVP_EncodeFinal(EVP_ENCODE_CTX *ctx, unsigned char *out, int *outl)
 	*outl=ret;
 	}
 
-int EVP_EncodeBlock(unsigned char *t, unsigned char *f, int dlen)
+int EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int dlen)
 	{
 	int i,ret=0;
 	unsigned long l;
@@ -337,7 +337,7 @@ end:
 	return(rv);
 	}
 
-int EVP_DecodeBlock(unsigned char *t, unsigned char *f, int n)
+int EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n)
 	{
 	int i,ret=0,a,b,c,d;
 	unsigned long l;

crypto/evp/evp.h

@@ -521,15 +521,14 @@ void	EVP_EncodeInit(EVP_ENCODE_CTX *ctx);
 void	EVP_EncodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,
 		int *outl,unsigned char *in,int inl);
 void	EVP_EncodeFinal(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl);
-int	EVP_EncodeBlock(unsigned char *t, unsigned char *f, int n);
+int	EVP_EncodeBlock(unsigned char *t, const unsigned char *f, int n);
 
 void	EVP_DecodeInit(EVP_ENCODE_CTX *ctx);
 int	EVP_DecodeUpdate(EVP_ENCODE_CTX *ctx,unsigned char *out,int *outl,
 		unsigned char *in, int inl);
 int	EVP_DecodeFinal(EVP_ENCODE_CTX *ctx, unsigned
 		char *out, int *outl);
-int	EVP_DecodeBlock(unsigned char *t, unsigned
-		char *f, int n);
+int	EVP_DecodeBlock(unsigned char *t, const unsigned char *f, int n);
 
 void	ERR_load_EVP_strings(void );
 

crypto/x509/x509.h

@@ -552,7 +552,7 @@ int X509_REQ_verify(X509_REQ *a, EVP_PKEY *r);
 int X509_CRL_verify(X509_CRL *a, EVP_PKEY *r);
 int NETSCAPE_SPKI_verify(NETSCAPE_SPKI *a, EVP_PKEY *r);
 
-NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(char *str, int len);
+NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len);
 char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *x);
 EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x);
 int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey);

crypto/x509/x509spki.c

@@ -76,7 +76,7 @@ EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
 
 /* Load a Netscape SPKI from a base64 encoded string */
 
-NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(char *str, int len)
+NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len)
 {
 	unsigned char *spki_der, *p;
 	int spki_len;
@@ -86,7 +86,7 @@ NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(char *str, int len)
 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE, ERR_R_MALLOC_FAILURE);
 		return NULL;
 	}
-	spki_len = EVP_DecodeBlock(spki_der, str, len);
+	spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
 	if(spki_len < 0) {
 		X509err(X509_F_NETSCAPE_SPKI_B64_DECODE,
 						X509_R_BASE64_DECODE_ERROR);
@@ -115,7 +115,7 @@ char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
 	}
 	p = der_spki;
 	i2d_NETSCAPE_SPKI(spki, &p);
-	EVP_EncodeBlock(b64_str, der_spki, der_len);
+	EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
 	Free(der_spki);
 	return b64_str;
 }