From: "Gaël PORTAY" <gael.portay@savoirfairelinux.com>
To: barebox@lists.infradead.org
Cc: "Gaël PORTAY" <gael.portay@savoirfairelinux.com>
Subject: [PATCH 1/2] readline_simple: return -1 if getc fails
Date: Mon, 7 Aug 2017 18:10:41 -0400 [thread overview]
Message-ID: <20170807221042.19700-2-gael.portay@savoirfairelinux.com> (raw)
In-Reply-To: <20170807221042.19700-1-gael.portay@savoirfairelinux.com>
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);
/*
* Special character handling
--
2.13.2
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next prev parent reply other threads:[~2017-08-07 22:11 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 ` Gaël PORTAY [this message]
2017-08-08 7:51 ` [PATCH 1/2] " Lucas Stach
2017-08-08 10:07 ` Ian Abbott
2017-08-08 15:21 ` Gaël PORTAY
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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