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Re: 1.7.0-67: syslog() not working properly - possible bug in writev() ?
On Dec 2 12:07, Christian Franke wrote:
> Corinna Vinschen wrote:
> > On Dec 2 10:31, Christian Franke wrote:
> > > I presume that the root of the problem is that the
> > >
> > > writev(fd, { {"< PRI >", . }, { "MSG", . } }, 2)
> > > used within syslog() sends "< PRI >" and "MSG" in
> > > two separate datagrams to /dev/log.
> > >
> >
> > Probably not. The "kernel:" message is generated if something is
> > available on /dev/kmsg, which shouldn't be the case. The only message
> > type generated there are exceptions catched by Cygwin. I'll have a
> > look into it. Thanks for the report.
> >
> >
>
> Another test:
>
> This sends one UDP package on 1.5, but two on 1.7:
>
> int sd = socket(AF_LOCAL, SOCK_DGRAM, 0);
>
> struct sockaddr_un sa; sa.sun_family = AF_LOCAL;
> strcpy(sa.sun_path, "/dev/log");
> connect(sd, (struct sockaddr *)&sa, sizeof(sa));
>
> struct iovec iv[2] = { { "<1>", 3 }, { "test: text", 10 } };
> writev(sd, iv, 2);
Yes, but... why is that a problem for syslog-ng? Shouldn't it have
to expect that a message comes in multiple UDP packages? Hmm.
Corinna
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Project Co-Leader cygwin AT cygwin DOT com
Red Hat
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