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bug#7877: sleep takes undocumented hex args
From: |
Eric Blake |
Subject: |
bug#7877: sleep takes undocumented hex args |
Date: |
Fri, 21 Jan 2011 07:51:42 -0700 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.7 |
On 01/21/2011 06:03 AM, Jim Meyering wrote:
> address@hidden wrote:
>> You see I was trying to make very special arguments to sleep so that I
>> can make sure to kill the one I want
>> pkill -u jidanni -fx sleep\ 000022
>> It is not clear if that will still work.
>
> With today's change using "sleep 000022" will
> still act just like "sleep 22".
>
> I could not change that (and would not want to!)
> without breaking with years of tradition.
>
>> Maybe the man/info page should
>> say a regexp that matches all valid args.
>
> It already describes the format pretty well,
> mentioning "floating point" and the four suffixes.
Floating point literals include hex-floats, such as 0x1p1. Does today's
added pre-filtering to reject 0x1 accidentally also reject hex-float
literals? (It's a bit of a shame that when hex-floats were added that
strtod() was altered to accept hex-float literals but as a side effect
it also started accepting hexadecimal values without the p[+-]?[0-9]+
exponent suffix).
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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bug#7877: sleep takes undocumented hex args, Jim Meyering, 2011/01/21
bug#7877: sleep takes undocumented hex args, Pádraig Brady, 2011/01/21
bug#7877: sleep 5 -4, jidanni, 2011/01/24
bug#7877: sleep 5 -4, jidanni, 2011/01/25