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package systemd
import (
"os"
"strconv"
)
// SocketActivated determine if podman is running under the socket activation protocol
// Criteria is based on the expectations of "github.com/coreos/go-systemd/v22/activation"
func SocketActivated() bool {
pid, found := os.LookupEnv("LISTEN_PID")
if !found {
return false
}
p, err := strconv.Atoi(pid)
if err != nil || p != os.Getpid() {
return false
}
fds, found := os.LookupEnv("LISTEN_FDS")
if !found {
return false
}
nfds, err := strconv.Atoi(fds)
if err != nil || nfds == 0 {
return false
}
// "github.com/coreos/go-systemd/v22/activation" will use and validate this variable's
// value. We're just providing a fast fail
if _, found = os.LookupEnv("LISTEN_FDNAMES"); !found {
return false
}
return true
}
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