Messages in this thread | | | Date | Fri, 23 Nov 2007 23:43:12 -0800 | From | Ulrich Drepper <> | Subject | Re: [PATCHv5 4/5] Allow setting O_NONBLOCK flag for new sockets |
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Eric Dumazet wrote: > 1) Can the fd passing with recvmsg() on AF_UNIX also gets O_CLOEXEC > support ?
Already there, see MSG_CMSG_CLOEXEC.
> 2) Why this O_NONBLOCK ability is needed for sockets ? Is it a security > issue, and if yes could you remind it to me ?
No security issue. But look at any correct network program, all need to set the mode to non-blocking. Adding this support to the syscall comes at almost no cost and it cuts the cost for every program down by one or two syscalls.
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