cvs commit: src/sys/kern sys_generic.c
phk at phk.freebsd.dk
Tue Jan 25 03:09:34 PST 2005
In message <20050125110648.GB29791 at nagual.pp.ru>, Andrey Chernov writes:
>On Tue, Jan 25, 2005 at 01:58:11PM +0300, Andrey Chernov wrote:
>> What's about "invalid buffer pointers" detection, directly mentioned in
>> the standard (above)? Now it is broken for zero bytes read because your
>> newly inserted check takes precedence.
>The next precedence violation candidate in error detection will be:
>The process is a member of a background process attempting to read from
>its controlling terminal, the process is ignoring or blocking the SIGTTIN
>signal, or the process group is orphaned."
>I.e. look at ERRORS section list and inspect each errno returning broken
>by preliminary zero bytes check.
That's another check we didn't do before to the resid==0 handling before.
Now, I'm going to killfile this subject until you come up with code which
real-life code which breaks because of this, OK ?
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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