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From: "Gaël PORTAY" <gael.portay@savoirfairelinux.com>
To: Ian Abbott <abbotti@mev.co.uk>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 1/2] readline_simple: return -1 if getc fails
Date: Tue, 8 Aug 2017 11:21:44 -0400	[thread overview]
Message-ID: <20170808152144.eikrnbp32fiqtz2j@gportay> (raw)
In-Reply-To: <aaed299c-a0e5-f7df-22de-72f14daace20@mev.co.uk>

Hi Ian,

On Tue, Aug 08, 2017 at 11:07:54AM +0100, Ian Abbott wrote:
> On 08/08/17 08:51, Lucas Stach wrote:
> > Am Montag, den 07.08.2017, 18:10 -0400 schrieb Gaël PORTAY:
> > > The getc function may return an errno code if an error happens.
> > > 
> > > This patch prevents readline from printing a non printable character and
> > > from looping to infinity and beyong.
> > > 
> > > Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
> > > ---
> > >   lib/readline_simple.c | 2 ++
> > >   1 file changed, 2 insertions(+)
> > > 
> > > diff --git a/lib/readline_simple.c b/lib/readline_simple.c
> > > index c4d3d240e..1283c9602 100644
> > > --- a/lib/readline_simple.c
> > > +++ b/lib/readline_simple.c
> > > @@ -58,6 +58,8 @@ int readline (const char *prompt, char *line, int len)
> > >   	for (;;) {
> > >   		c = getchar();
> > > +		if (c < 0)
> > > +			return (-1);
> > 
> > I don't like made up error codes. Is there any reason why we couldn't
> > just pass through the negative error code from getchar?
> 
> And also change the type of the 'c' variable, as it is currently a plain
> 'char'?
> 

Indeed :)

Regards,
Gaël

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  reply	other threads:[~2017-08-08 15:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-07 22:10 [PATCH 0/2] " Gaël PORTAY
2017-08-07 22:10 ` [PATCH 1/2] " Gaël PORTAY
2017-08-08  7:51   ` Lucas Stach
2017-08-08 10:07     ` Ian Abbott
2017-08-08 15:21       ` Gaël PORTAY [this message]
2017-08-08 15:20     ` Gaël PORTAY
2017-08-08 15:36       ` Lucas Stach
2017-08-08 16:05         ` Ian Abbott
2017-08-08 16:49           ` Gaël PORTAY
2017-08-08 16:14         ` Gaël PORTAY
2017-08-07 22:10 ` [PATCH 2/2] readline_simple: remove obsolete documentation Gaël PORTAY

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