If setsockopt() is used to set a timeout on a socket(),
then the various socket interfaces are not automatically
restarted, even if SA_RESTART is specified when
establishing the signal handler. Analogous behavior occurs
for the "stop signals" case.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Reported-by: Didier <did447@gmail.com>
Explain capability requirements for TIOCCONS, and describe
changes in 2.6.10 relating to capabilities.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
For TIOCSLCKTRMIOS, TIOCSCTTY, TIOCEXCL, explain the exact
capability that is required (the text formerly just said "root"
in each case).
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Add a sentence in DESCRIPTION pointing reader to NOTES for
discussion of glibc extensions for 'mode'.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
glibc 2.9 implements the 'e' flag in 'type', which sets the
close-on-exec flag on the underlying file descriptor.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Glibc 2.9 adds support to fmemopen() for binary mode opens.
Binary mode is specified by inclusion of the letter 'b' in
the 'mode' argument.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Refer the reader to socket(2) for a description of the SOCK_CLOEXEC
and SOCK_NONBLOCK flags, which are supported by socketpair() since
Linux 2.6.27.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Remove sentence saying that glibc adds a flags argument to the syscall;
that was only relevant for the older eventfd() system call.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Remove sentence saying that glibc adds a flags argument to the syscall;
that was only relevant for the older signalfd() system call.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Linux 2.6.27 added signalfd4(), which supports a flags argument
that signalfd() did not provide. The flags so far implemented
are SFD_NONBLOCK and SFD_CLOEXEC.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The eventfd.2 page has some details on the eventfd2() system call,
which was new in Linux 2.6.27.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Linux 2.6.27 added eventfd(), which supports a flags argument
that eventfd() did not provide. The flags so far implemented
are EFD_NONBLOCK and EFD_CLOEXEC,
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Michael Kerrisk