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Netlink sockets don't support querying pending bytes with ioctl(fd,
FIONREAD, ...) and would return EOPNOTSUPP, so use recvmsg() with
MSG_PEEK|MSG_TRUNC as a fallback.
The MSG_TRUNC flag to recvmsg() is Linux only, but netlink is as well,
so we're safe for now.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11714
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed Feb 10 10:30:24 CET 2016 on sn-devel-144
Non-blockging connect() either returns immediate success, or -1 with
errno EINPROGESS as indication that the connection is pending. All other
errnos indicate immediate failure.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Jun 19 01:05:17 CEST 2015 on sn-devel-104
This is similar to tdgram_inet_udp_socket(), but it allows
the use of ipv4 broadcast traffic.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11316
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is similar to tstream_bsd_existing_socket().
Both help to migrate strange code path to using the tstream or tdgram
abstractions.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11316
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The code stripped port numbers above 9999 down to 4 digits.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jul 1 21:10:53 CEST 2013 on sn-devel-104
The writev system call can return -1 and errno ENOMEM, as a
retriable condition.
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Mar 13 23:50:05 CET 2013 on sn-devel-104
This matches what was done for lib/socket/socket_unix.c in
c692bb02b0.
(and is based on that patch by Landon Fuller <landonf@bikemonkey.org>)
Andrew Bartlett
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Mar 4 11:15:35 CET 2013 on sn-devel-104
We only do the optimization on recvfrom/readv if the caller asked for it.
This is needed because in most cases we preferr to flush send
buffers before receiving incoming requests.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
If the socket is not readable yet, we need to retry
if tsocket_bsd_pending() returns 0.
See also
https://lists.samba.org/archive/samba-technical/2012-October/087164.html
metze
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Oct 23 14:44:21 CEST 2012 on sn-devel-104
It's possible for a client to send 0 bytes in a UDP packet,
we need still need to call recvfrom() and skip the invalid
packet at a higher level. Otherwise the kernel receive queue
is blocked.
metze
The new waf-based build system now has all the same functionality, and
the old build system has been broken for quite some time.
Autobuild-User: Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date: Sun Oct 31 02:01:44 UTC 2010 on sn-devel-104
tstream_inet_tcp_connect_send() usually only gets no local port number
and it may use the wildcard address '0.0.0.0' or '::'.
tstream_inet_tcp_connect_recv() provides the used local address and port
which are used on the wire.
metze
We got random double free errors, when getting events from
epoll_wait() and try to dereference the private talloc pointer
attached to it.
Before doing the close() in the tstream_disconnect_send() function
we need to delete the fd event.
commit 38f505530b only fixed it for
tdgram sockets.
metze
We got random double free errors, when getting events from
epoll_wait() and try to dereference the private talloc pointer
attached to it.
Before doing the close() in the tstream_disconnect_send() function
we need to delete the fd event.
metze
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Tue Sep 28 01:02:55 UTC 2010 on sn-devel-104
the code used this pattent:
if (fd < 0) {
...various cleanups...
return fd;
}
it is much clearer to do this:
if (fd < 0) {
...various cleanups...
return -1;
}
as otherwise when reading the code you think this function may return
a fd.
Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
The previous code assumed the OS would happily accept sizeof(struct
sockaddr_storage). It seems some versions of Solaris do not like
this.
Andrew Bartlett
Which was:
tsocket/bsd: fix bug #7115 FreeBSD includes the UDP header in FIONREAD
Metze, this has to have been wrong - you are throwing away the talloc_realloc
pointer returned. Also no error checking. Please review.
Thank goodness for gcc warnings :-).
Jeremy.
