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Re: [Bug-readline] segmentation fault in rl_parse_and_bind(char*)
From: |
Chet Ramey |
Subject: |
Re: [Bug-readline] segmentation fault in rl_parse_and_bind(char*) |
Date: |
Fri, 17 Oct 2014 14:57:36 -0400 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 |
On 10/17/14, 1:54 PM, Jo Van Bulck wrote:
> Hi all,
>
> When trying to parse a string as if it has been read from the inputrc
> file, using the 'rl_parse_and_bind(char *line)' function, I get a
> segmentation fault when passing any non-empy string. I run Archlinux
> with readline version 'readline 6.3.006-1'.
It depends on the behavior of your compiler. rl_parse_and_bind wants to
modify the string it's passed by temporarily putting in NULs and later
restoring the original characters as part of tokenizing the line, similar
to strtok/strsep. If your compiler puts string constants into read-only
memory pages, you'll get a seg fault if you pass such a string constant to
rl_parse_and_bind.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU address@hidden http://cnswww.cns.cwru.edu/~chet/