Fix 32-bit overflow with --no-net

--no-net causes tarballTtl to be set to the largest 32-bit integer,
which causes comparison like 'time + tarballTtl < other_time' to
fail on 32-bit systems. So cast them to 64-bit first.

https://hydra.nixos.org/build/95076624
(cherry picked from commit 29ccb2e9697ee2184012dd13854e487928ae4441)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstore/download.cc b/src/libstore/download.cc
index 892c1b21dc02..6ce9525c38de 100644
--- a/src/libstore/download.cc
+++ b/src/libstore/download.cc
@@ -784,7 +784,7 @@ CachedDownloadResult Downloader::downloadCached(
             auto ss = tokenizeString<vector<string>>(readFile(dataFile), "\n");
             if (ss.size() >= 3 && ss[0] == url) {
                 time_t lastChecked;
-                if (string2Int(ss[2], lastChecked) && lastChecked + request.ttl >= time(0)) {
+                if (string2Int(ss[2], lastChecked) && (uint64_t) lastChecked + request.ttl >= (uint64_t) time(0)) {
                     skip = true;
                     result.effectiveUri = request.uri;
                     result.etag = ss[1];