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Re: read builtin goes into uninterruptible loop if input only contains z


From: Siteshwar Vashisht
Subject: Re: read builtin goes into uninterruptible loop if input only contains zeros
Date: Fri, 28 Jul 2017 11:50:52 -0400 (EDT)

Modified the patch to print warning only once when null byte is ignored.

----- Original Message -----
> From: "Siteshwar Vashisht" <address@hidden>
> To: address@hidden
> Sent: Friday, July 28, 2017 3:59:15 PM
> Subject: read builtin goes into uninterruptible loop if input only contains   
> zeros
> 
> Configuration Information [Automatically generated, do not change]:
> Machine: x86_64
> OS: linux-gnu
> Compiler: gcc
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64'
> -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu'
> -DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/local/share/locale'
> -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib   -g
> -O0 -Wno-parentheses -Wno-format-security
> uname output: Linux localhost.localdomain 4.11.6-201.fc25.x86_64 #1 SMP Tue
> Jun 20 20:21:11 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
> Machine Type: x86_64-unknown-linux-gnu
> 
> Bash Version: 4.4
> Patch Level: 12
> Release Status: release
> 
> Description:
>         read builtin goes into uninterruptible loop if input comes from
>         /dev/zero.
> 
> Repeat-By:
>         read -N 1 _ < /dev/zero
> 
> Fix:
>         Attached patch fixes the bug.
> 
> 
> --
> --
> Siteshwar Vashisht
> 

-- 
--
Siteshwar Vashisht

Attachment: 0001-Make-read-builtin-interruptible-if-input-contains-ze.patch
Description: Text Data


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