downloader: Do not show an empty message digest

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/libpakfire/downloader.c b/src/libpakfire/downloader.c
index 7c22884a2ba7de64d537534434b5b64b577b6287..69e159f80110f7a63c7dd1cd838cf2d18d59a314 100644 (file)
--- a/src/libpakfire/downloader.c
+++ b/src/libpakfire/downloader.c
@@ -954,7 +954,7 @@ static int pakfire_transfer_done(struct pakfire_downloader* downloader,
 
        // Message Digest
        char* hexdigest = __pakfire_hexlify(transfer->computed_digest, transfer->computed_digest_length);
-       if (hexdigest) {
+       if (hexdigest && *hexdigest) {
                CTX_DEBUG(downloader->ctx, "  Message Digest: %s\n", hexdigest);
                free(hexdigest);
        }