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Fix 32-bit overflow with --no-net

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--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 29ccb2e969)
This commit is contained in:
Eelco Dolstra 2019-06-21 12:49:18 +02:00
parent f8b30338ac
commit 64ec087f58
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GPG key ID: 8170B4726D7198DE
3 changed files with 7 additions and 10 deletions
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2
src/libexpr/primops/fetchGit.cc
View file

@ -116,7 +116,7 @@ GitInfo exportGit(ref<Store> store, const std::string & uri,
git fetch to update the local ref to the remote ref. */
struct stat st;
doFetch = stat(localRefFile.c_str(), &st) != 0 ||
st.st_mtime + settings.tarballTtl <= now;
(uint64_t) st.st_mtime + settings.tarballTtl <= (uint64_t) now;
}
if (doFetch)
{

11
src/libexpr/primops/fetchMercurial.cc
View file

@ -80,7 +80,7 @@ HgInfo exportMercurial(ref<Store> store, const std::string & uri,
time_t now = time(0);
struct stat st;
if (stat(stampFile.c_str(), &st) != 0 ||
st.st_mtime + settings.tarballTtl <= now)
(uint64_t) st.st_mtime + settings.tarballTtl <= (uint64_t) now)
{
/* Except that if this is a commit hash that we already have,
we don't have to pull again. */
@ -99,14 +99,11 @@ HgInfo exportMercurial(ref<Store> store, const std::string & uri,
catch (ExecError & e) {
string transJournal = cacheDir + "/.hg/store/journal";
/* hg throws "abandoned transaction" error only if this file exists */
if (pathExists(transJournal))
{
if (pathExists(transJournal)) {
runProgram("hg", true, { "recover", "-R", cacheDir });
runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri });
}
else
{
throw ExecError(e.status, fmt("program hg '%1%' ", statusToString(e.status)));
} else {
throw ExecError(e.status, fmt("'hg pull' %s", statusToString(e.status)));
}
}
} else {

2
src/libstore/download.cc
View file

@ -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];