[PATCH 1/2] readline_simple: return -1 if getc fails

[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 at 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