From: Joey Castillo <joeycastillo@utexas.edu>
Date: Wed, 19 Jan 2022 22:22:31 +0000 (-0500)
Subject: fix out of bounds access when position != 0
X-Git-Url: https://git.earman.xyz/?a=commitdiff_plain;h=3efdcd78a1fd470ca47fdd30c3251170d2f4f03b;p=sensor-watch.git

fix out of bounds access when position != 0
---

diff --git a/watch-library/watch/watch_slcd.c b/watch-library/watch/watch_slcd.c
index 4bcb165..1b1e53e 100644
--- a/watch-library/watch/watch_slcd.c
+++ b/watch-library/watch/watch_slcd.c
@@ -236,7 +236,7 @@ void watch_display_string(char *string, uint8_t position) {
     while(string[i] != 0) {
         watch_display_character(string[i], position + i);
         i++;
-        if (i >= Num_Chars) break;
+        if (position + i >= Num_Chars) break;
     }
     // uncomment this line to see screen output on terminal, i.e.
     //   FR  29