From 44cca454d2b9d1adfa44bafbf12d7777ad0c4f8c Mon Sep 17 00:00:00 2001 From: Michael Kerrisk Date: Mon, 20 Jun 2016 11:24:11 +0200 Subject: [PATCH] unix.7: Note that umask / permissions have no effect for abstract sockets Signed-off-by: Michael Kerrisk --- man7/unix.7 | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/man7/unix.7 b/man7/unix.7 index 267d083e7..7e6495692 100644 --- a/man7/unix.7 +++ b/man7/unix.7 @@ -250,6 +250,16 @@ and .\" However, fchown() and fchmod() do not seem to have an effect .\" .SS Abstract sockets +Socket permissions have no meaning for abstract sockets: +the process +.BR umask (2) +has no effect when binding an abstract socket, +and changing the ownership and permissions of the object (via +.BR fchown (2) +and +.BR fchmod (2)) +has no effect on the accessibility of the socket. + Abstract sockets automatically disappear when all open references to the socket are closed.