Fix the off by one error in checking whether we can draw the marker
without exceeding buffer dimensions.
Fixes a segfault.
Signed-off-by: Pekka Paalanen <ppaala...@gmail.com>
---
clients/simple-touch.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/clients/simple-touch.c b/clients/simple-touch.c
index 3a1d940..f8afbb0 100644
--- a/clients/simple-touch.c
+++ b/clients/simple-touch.c
@@ -118,8 +118,8 @@ touch_paint(struct touch *touch, int32_t x, int32_t y,
int32_t id)
else
c = 0xffffffff;
- if (x < 2 || touch->width - 2 < x ||
- y < 2 || touch->height - 2 < y)
+ if (x < 2 || x >= touch->width - 2 ||
+ y < 2 || y >= touch->height - 2)
return;
p = (uint32_t *) touch->data + (x - 2) + (y - 2) * touch->width;
--
1.7.8.6
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