[lkml]   [1998]   [Aug]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: Out of ptys
    Date writes:
    > > > open("/dev/ptyp2", O_RDWR) = 3
    > > > ioctl(1, TCGETS, 0xbffff1dc) = -1 EINVAL (Invalid argument)
    > > > ioctl(2, TCGETS, 0xbffff1d0) = -1 EINVAL (Invalid argument)
    > > >
    > > No, they are invalid because you don't have a stdout and stderr.
    > > open() doesn't work the way you seem to think here.
    > Well there was never a dup() of any kind, so there could not be a fd
    > for stdout or stderr. I can see from the source that the idea was
    > to open these devices until one could be found that did not fail.
    Wrong. open() _always_ returns the first free fd. If it returns 3, then
    0..2 are open, possibly to /dev/null or whatever. Most likely, your program
    inherited them that way from the parent process.

    Matthias Urlichs
    noris network GmbH

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:44    [W:0.019 / U:32.972 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site