summaryrefslogtreecommitdiffstats
path: root/lib/readline.c
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2009-09-29 08:50:20 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2009-09-29 08:50:42 +0200
commit82875bfd5209c6dc2877001050069de36a18704f (patch)
tree81aedb03f8a24ffe35f0f08e4d827753d0bfe1da /lib/readline.c
parent05498486b443a53ee3b1966dc83ff1f2d1fad69e (diff)
downloadbarebox-82875bfd5209c6dc2877001050069de36a18704f.tar.gz
barebox-82875bfd5209c6dc2877001050069de36a18704f.tar.xz
readline: Allow only ascii and printable characters
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'lib/readline.c')
-rw-r--r--lib/readline.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/readline.c b/lib/readline.c
index 216ffbb79c..750da3b59c 100644
--- a/lib/readline.c
+++ b/lib/readline.c
@@ -3,6 +3,7 @@
#include <init.h>
#include <xfuncs.h>
#include <complete.h>
+#include <linux/ctype.h>
/*
* cmdline-editing related codes from vivi.
@@ -177,7 +178,7 @@ int readline(const char *prompt, char *buf, int len)
unsigned long eol_num = 0;
unsigned long rlen;
unsigned long wlen;
- char ichar;
+ unsigned char ichar;
int insert = 1;
int rc = 0;
#ifdef CONFIG_AUTO_COMPLETE
@@ -327,7 +328,8 @@ int readline(const char *prompt, char *buf, int len)
continue;
}
default:
- cread_add_char(ichar, insert, &num, &eol_num, buf, len);
+ if (isascii(ichar) && isprint(ichar))
+ cread_add_char(ichar, insert, &num, &eol_num, buf, len);
break;
}
}