Re: bash 3.0 ignores intr character

[Chet Ramey]

Tim Mooney wrote:

> Configuration Information [Automatically generated, do not change]:
> Machine: alphaev56
> OS: osf5.1
> Compiler: cc
> Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='alphaev56' 
> -DCONF_OSTYPE='osf5.1' -DCONF_MACHTYPE='alphaev56-dec-osf5.1' 
> -DCONF_VENDOR='dec' -DLOCALEDIR='/local/gnu/share/locale' -DPACKAGE='bash' 
> -DSHELL -DHAVE_CONFIG_H  -I.  -I. -I./include -I./lib  -I/local/gnu/include 
> -std -O3 -g3 -tune host -arch host -Olimit 3000 -portable -readonly_strings 
> -msg_disable inlinestoclsmod,valuepres,longlongtype
> uname output: OSF1 dogbert V5.1 2650 alpha
> Machine Type: alphaev56-dec-osf5.1
>
> Bash Version: 3.0
> Patch Level: 0
> Release Status: release
>
> Description:
>         [I tried posting this to gnu.bash.bug twice, but neither post has
>         shown up that I can see].
>
>         bash 3.0 has a change to readline regarding special characters, as
>         mentioned in a post to gnu.bash.bug with a Subject: of
>         "unix-filename-rubout doesn't work".

This isn't a new change.  The code in question was inserted many years
ago.

>         I think Chet's reasoning is sound regarding why the change was made,
>         but it seems to have completely broken intr-handling in bash 3.0.

No.  Something else is at fault.  I'm traveling and don't have access to
Solaris 2.8, but can't reproduce it right now on the systems to which I
do have access.

Does ^C work to interrupt a normal process?  For example, can you
interrupt a `sleep' job with ^C?

When running a system call tracer like `truss', does pressing ^C while
readline is active even generate a SIGINT?  The idea is that a SIGINT is
generated by the terminal driver and handled by readline, not that
readline has something bound to ^C that simulates the effects of SIGINT.

Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet )
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Chet Ramey, ITS, CWRU    chet@po.CWRU.Edu 
http://cnswww.cns.cwru.edu/~chet/