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2ff8de3102
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.
31 lines
1.6 KiB
Plaintext
31 lines
1.6 KiB
Plaintext
Portions of this software have the following copyright.
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--
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Copyright (c) 1991, 1993
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The Regents of the University of California. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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4. Neither the name of the University nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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