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Merge pull request #5335 from edolstra/socket-paths

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Support arbitrary-length socket paths
This commit is contained in:
Eelco Dolstra 2021-10-05 17:36:07 +02:00 • committed by GitHub
commit fd57e7074f
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5 changed files with 81 additions and 32 deletions
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11
src/libstore/uds-remote-store.cc
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@ -65,16 +65,7 @@ ref<RemoteStore::Connection> UDSRemoteStore::openConnection()
throw SysError("cannot create Unix domain socket");
closeOnExec(conn->fd.get());
string socketPath = path ? *path : settings.nixDaemonSocketFile;
struct sockaddr_un addr;
addr.sun_family = AF_UNIX;
if (socketPath.size() + 1 >= sizeof(addr.sun_path))
throw Error("socket path '%1%' is too long", socketPath);
strcpy(addr.sun_path, socketPath.c_str());
if (::connect(conn->fd.get(), (struct sockaddr *) &addr, sizeof(addr)) == -1)
throw SysError("cannot connect to daemon at '%1%'", socketPath);
nix::connect(conn->fd.get(), path ? *path : settings.nixDaemonSocketFile);
conn->from.fd = conn->fd.get();
conn->to.fd = conn->fd.get();