nettle base64_encode_raw: use cast to avoid warnings

Nettle switched prototypes for base64_encode_raw() as follows:
-base64_encode_raw(uint8_t *dst, size_t length, const uint8_t *src);
+base64_encode_raw(char *dst, size_t length, const uint8_t *src);

That means we need to cast fist param to void if we want to avoid
warnings on different platforms.

Signed-off-by: Nikos Mavrogiannopoulos <nmav@redhat.com>

3 files changed, 4 insertions, 4 deletions

diff --git a/lib/str.c b/lib/str.c
index e309dfb6a3..c8d742e91e 100644
--- a/lib/str.c
+++ b/lib/str.c
@@ -1040,7 +1040,7 @@ _gnutls_buffer_base64print(gnutls_buffer_st * str,
 		return gnutls_assert_val(ret);
 	}
 
-	base64_encode_raw(&str->data[str->length], len, data);
+	base64_encode_raw((void*)&str->data[str->length], len, data);
 	str->length += b64len;
 	str->data[str->length] = 0;
 
diff --git a/lib/verify-tofu.c b/lib/verify-tofu.c
index 942d692650..310778629b 100644
--- a/lib/verify-tofu.c
+++ b/lib/verify-tofu.c
@@ -370,7 +370,7 @@ static int raw_pubkey_to_base64(const gnutls_datum_t * raw,
 	if (b64->data == NULL)
 		return gnutls_assert_val(GNUTLS_E_MEMORY_ERROR);
 
-	base64_encode_raw(b64->data, raw->size, raw->data);
+	base64_encode_raw((void*)b64->data, raw->size, raw->data);
 	b64->size = size;
 
 	return 0;
diff --git a/lib/x509_b64.c b/lib/x509_b64.c
index 218f98a3ce..9a1037405b 100644
--- a/lib/x509_b64.c
+++ b/lib/x509_b64.c
@@ -102,7 +102,7 @@ _gnutls_fbase64_encode(const char *msg, const uint8_t * data,
 		if (sizeof(tmpres) < size)
 			return gnutls_assert_val(GNUTLS_E_BASE64_ENCODING_ERROR);
 
-		base64_encode_raw(tmpres, tmp, &data[i]);
+		base64_encode_raw((void*)tmpres, tmp, &data[i]);
 
 		INCR(bytes, size + 1, max);
 		ptr = &result->data[pos];
@@ -282,7 +282,7 @@ _gnutls_base64_decode(const uint8_t * data, size_t data_size,
 	}
 
 	ret = base64_decode_update(&ctx, &size, result->data,
-				   pdata.size, pdata.data); 
+				   pdata.size, (void*)pdata.data);
 	if (ret == 0 || size == 0) {
 		gnutls_assert();
 		ret = GNUTLS_E_BASE64_DECODING_ERROR;