dcrypt-openssl: Pass pointer safely

diff --git a/src/lib-dcrypt/dcrypt-openssl.c b/src/lib-dcrypt/dcrypt-openssl.c
index 7c1c96950e63baf522233f9444332b2d61444af3..107c41eed354ecb39b4ff0cbced09e1927feeaee 100644 (file)
--- a/src/lib-dcrypt/dcrypt-openssl.c
+++ b/src/lib-dcrypt/dcrypt-openssl.c
@@ -1231,11 +1231,13 @@ int dcrypt_openssl_load_public_key_dovecot_v2(struct dcrypt_public_key **key_r,
        buffer_t tmp;
        size_t keylen = strlen(input[1])/2;
        unsigned char keybuf[keylen];
+       const unsigned char *ptr;
        buffer_create_from_data(&tmp, keybuf, keylen);
        hex_to_binary(input[1], &tmp);
+       ptr = keybuf;
 
        EVP_PKEY *pkey = EVP_PKEY_new();
-       if (d2i_PUBKEY(&pkey, (const unsigned char**)(tmp.data), tmp.used)==NULL) {
+       if (d2i_PUBKEY(&pkey, &ptr, keylen)==NULL) {
                EVP_PKEY_free(pkey);
                dcrypt_openssl_error(error_r);
                return -1;