agent: Fix sock_inotify_fd handling.

* agent/gpg-agent.c (handle_connections): Also check SOCK_INOTIFY_FD
when spawning check_onw_socket_thread.  When removal of the socket
is detected, do same as AGENT_PROBLEM_SOCKET_TAKEOVER.

--

GnuPG-bug-id: 6692
Signed-off-by: NIIBE Yutaka <[email protected]>

1 files changed, 5 insertions, 2 deletions

diff --git a/agent/gpg-agent.c b/agent/gpg-agent.c
index 8c7f08c22..b7863cbbe 100644
--- a/agent/gpg-agent.c
+++ b/agent/gpg-agent.c
@@ -3055,7 +3055,7 @@ handle_connections (gnupg_fd_t listen_fd,
     have_homedir_inotify = 1;
 
 #if CHECK_OWN_SOCKET_INTERVAL > 0
-  if (!disable_check_own_socket)
+  if (!disable_check_own_socket && sock_inotify_fd == -1)
     {
       npth_t thread;
 
@@ -3255,7 +3255,10 @@ handle_connections (gnupg_fd_t listen_fd,
           && FD_ISSET (sock_inotify_fd, &read_fdset)
           && gnupg_inotify_has_name (sock_inotify_fd, GPG_AGENT_SOCK_NAME))
         {
-          shutdown_pending = 1;
+          /* We may not remove the socket (if any), as it may be now
+             in use by another server.  */
+          inhibit_socket_removal = 1;
+          shutdown_pending = 2;
           close (sock_inotify_fd);
           sock_inotify_fd = -1;
           log_info ("socket file has been removed - shutting down\n");