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Re: Adding an option to avoid SIGPIPE for all file descriptors
On Jan 23, 2012, at 11:05 58PM, Matt Thomas wrote:
> On Jan 23, 2012, at 7:58 PM, Steven Bellovin wrote:
>>> I also wonder whether we should also have a note that disabled SIGPIPE.
>>> similar to what paxctl does.
>> You mean a system-wide flag? That would worry me; I think it would have
>> bad effects, since anything that did
>> a | b
> paxctl sets a note in the executable.
I don't like that, either, but on philosophical grounds.
The problem I have is that the semantics of the execution now depend on
something not in the source code; however, the code needs to know about
it in order to cope properly. (Setuid is somewhat different, since it
also reflects the policy of the site.) I also don't see the point, as
opposed to a system call to set the flag.
--Steve Bellovin, https://www.cs.columbia.edu/~smb
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