Dnia 15-01-2008, Wt o godzinie 11:15 +0100, Corinna Vinschen pisze:
> On Jan 15 09:19, Christopher Yeleigton wrote:
> > Summary:
> > Unexpected error ENOTSOCK upon closing filedes[0] obtained via socketpair
> >
> > Test case:
> >
> > #include <stdio.h>
> > #include <stdlib.h>
> > #include <sys/socket.h>
> >
> > int main(int argc, char *argv[])
> > {
> > auto int a_fd[02];
> > if(socketpair(AF_LOCAL, SOCK_STREAM, 0, a_fd))
> > perror("socketpair");
> > else
> > {
> > auto int an_ix = 0;
> > for(; an_ix < 02; ++an_ix)
> > if(close(a_fd[an_ix]))
> > { enum BufLen { BUF_LEN = 040 };
> > auto char a_buf[BUF_LEN];
> > perror(snprintf(a_buf, BUF_LEN, "close %d", an_ix) > 0? a_buf:
> > "sprintf"); }}
> > return EXIT_SUCCESS; }
> >
> > Error message:
> > close 0: Socket operation on non-socket
> >
> > (Note it occurs with filedes[0] only, even if close is called for
> > filedes[1]
> > first).
> >
> > OpenBSD does not exhibit this malfunction.
>
> I tried your test application multiple times on XP SP2, 2003 Server x64,
> as well as on 2008 Server RC1. I can not reproduce the above problem.
> On all three machines (all running Cygwin 1.5.25-7), the sockets are
> closed without failure every time. Maybe that's a bad interaction with
> a third party product? Did you check the FAQ?
The FAQ does not mention any of the products I have, namely, Panda
Internet Security and nVidia ForceWare. The problem went away when I
uninstalled Panda and I hope it will not return even though I am going
to reinstall it, albeit without the firewall component. (Having two
firewalls is a bad thing, of course; I thought the installer would be
smart enough not to install its firewall on top of the other.).
>
> http://cygwin.com/faq/faq.using.html#faq.using.bloda
>
>
> Corinna
>
Thanks,
Chris
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