mtr/BSDCOPYING
Matt Kimball 2ff8de3102 mtr-packet: drop capabilities + using BSD's linked lists for probes
At startup, we now use cap_set_proc to drop all privileged
capabilities for the mtr-packet process.  This means that
capabilities granted through the commandline setcap to the
mtr-packet executable will only be in effect while the necessary
raw sockets are opened, and will be dropped before any command
requests are read.

Now we use BSD's queue.h linked list support for storing outstanding
probes.  This makes iterating through in-flight probes more efficient,
as we don't need to loop through many unused probe entires when only
a few probes are outstanding.

Changed mtr-packet's default probe size to 64 bytes, to match
mainline mtr's default.

The code consistently uses 'exit(EXIT_FAILURE)' instead of 'exit(1)'.
The effect is the same, but the intent is clearer.
2016-12-25 09:26:34 -08:00

31 lines
1.6 KiB
Plaintext

Portions of this software have the following copyright.
--
Copyright (c) 1991, 1993
The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
4. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.