nixos/nix
1
1
Fork 0
mirror of https://github.com/NixOS/nix.git synced 2025-11-12 13:36:02 +01:00
Code Activity

Allow the gc roots daemon to use a long socket path

Browse source 
`chdir` to the directory of the socket and only use a relative path to
it to bypass the socket path length limit (like it's done in
`nix::bind`, except that there's no need to fork here since we can
afford changing the directory of the process)
This commit is contained in:
Théophane Hufschmitt 2022-06-14 16:46:14 +02:00
parent 5c6b9bc361
commit 6c0e7450de
1 changed files with 6 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

8
src/nix-find-roots/main.cc
View file

@ -119,8 +119,12 @@ int main(int argc, char * * argv)
struct sockaddr_un addr;
addr.sun_family = AF_UNIX;
unlink(opts.socketPath.c_str());
strcpy(addr.sun_path, opts.socketPath.c_str());
auto socketDir = opts.socketPath.parent_path();
auto socketFilename = opts.socketPath.filename();
chdir(socketDir.c_str());
fs::remove(socketFilename);
strcpy(addr.sun_path, socketFilename.c_str());
if (bind(mySock, (struct sockaddr*) &addr, sizeof(addr)) == -1) {
throw Error("Cannot bind to socket");
}