Make pid files backwards compatible and add address of listening socket.

[tinc] / src / control.c

diff --git a/src/control.c b/src/control.c
index 01f25aa..bcafc09 100644 (file)
--- a/src/control.c
+++ b/src/control.c
@@ -26,6 +26,7 @@
 #include "logger.h"
 #include "meta.h"
 #include "net.h"
+#include "netutl.h"
 #include "protocol.h"
 #include "route.h"
 #include "splay_tree.h"
@@ -146,8 +147,20 @@ bool init_control(void) {
 #else
        chmod(pidfilename, 0600);
 #endif
+       // Get the address and port of the first listening socket
 
-       fprintf(f, "%s %s %d\n", controlcookie, myport, getpid());
+       char *localhost = NULL;
+       sockaddr_t sa;
+       socklen_t len = sizeof sa;
+
+       if(getsockname(listen_socket[0].tcp, (struct sockaddr *)&sa, &len))
+               xasprintf(&localhost, "127.0.0.1 port %d", myport);
+       else
+               localhost = sockaddr2hostname(&sa);
+
+       fprintf(f, "%d %s %s\n", (int)getpid(), controlcookie, localhost);
+
+       free(localhost);
        fclose(f);
 
        return true;