From: Jun T <takimoto-j@kba.biglobe.ne.jp>
To: zsh-workers@zsh.org
Subject: Re: [bug] busyloop upon $=var with NULs when $IFS contains both NUL and a byte > 0x7f
Date: Tue, 13 Dec 2022 18:49:21 +0900 [thread overview]
Message-ID: <98F2CEB4-691A-4DA3-9B41-5341EA3E8B9B@kba.biglobe.ne.jp> (raw)
In-Reply-To: <351204342.6213761.1669732685914@mail.virginmedia.com>
Sorry for very late reply.
> 2022/11/29 23:38, Peter Stephenson <p.w.stephenson@ntlworld.com> wrote:
>
>> On 29/11/2022 14:27 Jun. T <takimoto-j@kba.biglobe.ne.jp> wrote:
>> 3834 for (; *s; r++) {
>> 3835 char *ie = itype_end(s, ISEP, 1);
>> 3836 if (ie != s) {
>> 3837 s = ie;
>> ....
>> 3840 }
>> 3841 (void)findsep(&s, NULL, 0);
>> ....
>> 3845 }
>>
>> Here, the pointer s already points to a ISEP (\x83\x20 = metafied Nul),
>> but itype_end() can't find the next ISEP (ie == s) due to the empty
>> ifs_wide, and findsep() does not move s because *s is already ISEP,
>> resulting in infinite-loop with the same s.
>
> I guess the obvious thing to do here is any time s doesn't move
> give up splitting at that point.
How can we 'give up'? Is it OK to call exit()?
next prev parent reply other threads:[~2022-12-13 9:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-18 14:27 Stephane Chazelas
2022-11-29 14:27 ` Jun. T
2022-11-29 14:38 ` Peter Stephenson
2022-11-30 4:20 ` Bart Schaefer
2022-11-30 9:21 ` Peter Stephenson
2022-12-13 9:50 ` Jun T
2022-12-13 9:49 ` Jun T [this message]
2022-12-13 10:13 ` Peter Stephenson
2022-12-13 11:40 ` Jun T
2022-12-13 11:55 ` Peter Stephenson
2023-06-21 4:49 ` Jun T
2022-12-11 19:12 ` Stephane Chazelas
2022-12-13 9:51 ` Jun T
2022-11-30 14:56 ` Jun. T
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