[PATCH 5/8] unix-stream-server: add st_dev and st_mode to socket stolen checks

["Jeff Hostetler via GitGitGadget" <gitgitgadget@gmail.com>]

From: Jeff Hostetler <jeffhost@microsoft.com>

When checking to see if our unix domain socket was stolen, also check
whether the st.st_dev and st.st_mode fields changed (in addition to
the st.st_ino field).

The inode by itself is not unique; it is only unique on a given
device.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
---
 unix-stream-server.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/unix-stream-server.c b/unix-stream-server.c
index f00298ca7ec3..366ece69306b 100644
--- a/unix-stream-server.c
+++ b/unix-stream-server.c
@@ -120,8 +120,11 @@ int unix_stream_server__was_stolen(
 
 	if (st_now.st_ino != server_socket->st_socket.st_ino)
 		return 1;
+	if (st_now.st_dev != server_socket->st_socket.st_dev)
+		return 1;
 
-	/* We might also consider the ctime on some platforms. */
+	if (!S_ISSOCK(st_now.st_mode))
+		return 1;
 
 	return 0;
 }
-- 
gitgitgadget