avoid warnings

diff --git a/crypto/rsa/rsa_oaep.c b/crypto/rsa/rsa_oaep.c
index 8da765e4d736a5c8d6cf44a721135cfb8f626f23..e6d98c5bdbdafdf9ebf2731708fb662d965b41c3 100644 (file)
--- a/crypto/rsa/rsa_oaep.c
+++ b/crypto/rsa/rsa_oaep.c
@@ -164,8 +164,10 @@ int MGF1(unsigned char *mask, long len,
 
     for (i = 0; outlen < len; i++)
        {
-       cnt[0] = (i >> 24) & 255, cnt[1] = (i >> 16) & 255,
-         cnt[2] = (i >> 8) & 255, cnt[3] = i & 255;
+       cnt[0] = (unsigned char)((i >> 24) & 255);
+       cnt[1] = (unsigned char)((i >> 16) & 255);
+       cnt[2] = (unsigned char)((i >> 8)) & 255;
+       cnt[3] = (unsigned char)(i & 255);
        EVP_DigestInit(&c,EVP_sha1());
        EVP_DigestUpdate(&c, seed, seedlen);
        EVP_DigestUpdate(&c, cnt, 4);