+int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc,
+ const EVP_CIPHER **enc)
+{
+ int i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, sslc->algorithm_enc);
+
+ if (i == -1) {
+ *enc = NULL;
+ } else {
+ if (i == SSL_ENC_NULL_IDX) {
+ /*
+ * We assume we don't care about this coming from an ENGINE so
+ * just do a normal EVP_CIPHER_fetch instead of
+ * ssl_evp_cipher_fetch()
+ */
+ *enc = EVP_CIPHER_fetch(ctx->libctx, "NULL", ctx->propq);
+ if (*enc == NULL)
+ return 0;
+ } else {
+ const EVP_CIPHER *cipher = ctx->ssl_cipher_methods[i];
+
+ if (cipher == NULL
+ || !ssl_evp_cipher_up_ref(cipher))
+ return 0;
+ *enc = ctx->ssl_cipher_methods[i];
+ }
+ }
+ return 1;
+}
+