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Also check the NixOS specific files

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This commit is contained in:
Théophane Hufschmitt 2022-04-11 10:20:36 +02:00
parent 61c35a810b
commit 3839eb15d6
1 changed files with 13 additions and 0 deletions
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13
src/nix-find-roots/nix-find-roots.cc
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@ -197,6 +197,9 @@ TraceResult followPathsToStore(GlobalOpts opts, set<fs::path> roots)
*/
void scanFileContent(const GlobalOpts & opts, const fs::path & fileToScan, Roots & res)
{
if (!fs::exists(fileToScan))
return;
std::ostringstream contentStream;
{
std::ifstream fs;
@ -218,6 +221,9 @@ void scanFileContent(const GlobalOpts & opts, const fs::path & fileToScan, Roots
*/
void scanMapsFile(const GlobalOpts & opts, const fs::path & mapsFile, Roots & res)
{
if (!fs::exists(mapsFile))
return;
static auto mapRegex = std::regex(R"(^\s*\S+\s+\S+\s+\S+\s+\S+\s+\S+\s+(/\S+)\s*$)");
std::stringstream mappedFile;
{
@ -275,6 +281,13 @@ Roots getRuntimeRoots(GlobalOpts opts)
scanFileContent(opts, procEntry.path()/"environ", res);
scanMapsFile(opts, procEntry.path()/"maps", res);
}
// Mostly useful for NixOS, but doesn’t hurt to check on other systems
// anyways
scanFileContent(opts, "/proc/sys/kernel/modprobe", res);
scanFileContent(opts, "/proc/sys/kernel/fbsplash", res);
scanFileContent(opts, "/proc/sys/kernel/poweroff_cmd", res);
return res;
}