Properly clear the last entered character - slock - simple X display locker utility
(HTM) git clone git://git.suckless.org/slock
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---
(DIR) commit 35633d45672d14bd798c478c45d1a17064701aa9
(DIR) parent 2d2a21a90ad1b53594b1b90b97486189ec54afce
(HTM) Author: Tobias Stoeckmann <tobias@stoeckmann.org>
Date: Sat, 25 Mar 2017 21:16:01 +0100
Properly clear the last entered character
When enter is pressed, passwd[len] will be set to '\0'. Pressing
backspace is supposed to remove the last entered character.
But currently, the clearing has an off-by-one, as in setting
passwd[len] to '\0' just like enter would do.
You can also verify it by imagining len=1 and that it's impossible to
clear passwd[0] by pressing backspace with the current code.
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Diffstat:
M slock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
---
(DIR) diff --git a/slock.c b/slock.c
@@ -177,7 +177,7 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
break;
case XK_BackSpace:
if (len)
- passwd[len--] = '\0';
+ passwd[--len] = '\0';
break;
default:
if (num && !iscntrl((int)buf[0]) &&