killChild() is not needed any more; update config example by the way

dnscrypt-proxy/example-dnscrypt-proxy.toml

@@ -41,12 +41,7 @@ listen_addresses = ['127.0.0.1:53', '[::1]:53']
 max_clients = 250
 
 
-## Switch to a non-privileged system user after listening sockets have been created.
-## Two processes will be running.
-## The first one will keep root privileges, but is only a supervisor, that does nothing
-## except create the sockets, manage the service, and restart it if it crashes.
-## The second process is the service itself, and that one will always run as a different
-## user.
+## Switch to a different system user after listening sockets have been created.
 ## Note (1): this feature is currently unsupported on Windows.
 ## Note (2): this feature is not compatible with systemd socket activation.
 
@@ -491,6 +486,15 @@ cache_neg_max_ttl = 600
   refresh_delay = 72
   prefix = ''
 
+  ## Quad9 over DNSCrypt - https://quad9.net/
+
+  # [sources.quad9-resolvers]
+  # urls = ["https://www.quad9.net/quad9-resolvers.md"]
+  # minisign_key = "RWQBphd2+f6eiAqBsvDZEBXBGHQBJfeG6G+wJPPKxCZMoEQYpmoysKUN"
+  # cache_file = "quad9-resolvers.md"
+  # refresh_delay = 72
+  # prefix = "quad9"
+
   ## Another example source, with resolvers censoring some websites not appropriate for children
   ## This is a subset of the `public-resolvers` list, so enabling both is useless
 

dnscrypt-proxy/main.go

@@ -108,7 +108,6 @@ func (app *App) Stop(service service.Service) error {
 	if pidFilePath := pidfile.GetPidfilePath(); len(pidFilePath) > 1 {
 		os.Remove(pidFilePath)
 	}
-	killChild()
 	dlog.Notice("Stopped.")
 	return nil
 }

dnscrypt-proxy/privilege_linux.go

@@ -84,11 +84,3 @@ func (proxy *Proxy) dropPrivilege(userStr string, fds []*os.File) {
 	dlog.Fatalf("Unable to reexecute [%s]", path)
 	os.Exit(1)
 }
-
-func killChild() {
-	if cmd != nil {
-		if err := cmd.Process.Kill(); err != nil {
-			dlog.Fatal("Failed to kill child process.")
-		}
-	}
-}

dnscrypt-proxy/privilege_others.go

@@ -86,11 +86,3 @@ func (proxy *Proxy) dropPrivilege(userStr string, fds []*os.File) {
 	dlog.Fatalf("Unable to reexecute [%s]", path)
 	os.Exit(1)
 }
-
-func killChild() {
-	if cmd != nil {
-		if err := cmd.Process.Kill(); err != nil {
-			dlog.Fatal("Failed to kill child process.")
-		}
-	}
-}

dnscrypt-proxy/privilege_windows.go

@@ -3,4 +3,3 @@ package main
 import "os"
 
 func (proxy *Proxy) dropPrivilege(userStr string, fds []*os.File) {}
-func killChild() {}