From 6e64bd12e065bc8d2038d495fada88603be4a83e Mon Sep 17 00:00:00 2001
From: Scott Giese <scttgs0@gmail.com>
Date: Sun, 21 Feb 2021 10:07:27 -0600
Subject: [PATCH] Maintenance: gps
overflow prevention
---
src/Instrumentation/gps.cxx | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/src/Instrumentation/gps.cxx b/src/Instrumentation/gps.cxx
index 79611946b..dcc39a231 100644
--- a/src/Instrumentation/gps.cxx
+++ b/src/Instrumentation/gps.cxx
@@ -43,16 +43,19 @@ static const char* makeTTWString(double TTW)
if ((TTW <= 0.0) || (TTW >= 356400.5)) { // 99 hours
return "--:--:--";
}
-
- unsigned int TTW_seconds = (int) (TTW + 0.5);
- unsigned int TTW_minutes = 0;
- unsigned int TTW_hours = 0;
- static char TTW_str[9];
+
+ unsigned TTW_seconds = (unsigned) (TTW + 0.5);
+ unsigned TTW_minutes = 0;
+ unsigned TTW_hours = 0;
+
TTW_hours = TTW_seconds / 3600;
TTW_minutes = (TTW_seconds / 60) % 60;
TTW_seconds = TTW_seconds % 60;
- snprintf(TTW_str, 9, "%02d:%02d:%02d",
+
+ static char TTW_str[16];
+ snprintf(TTW_str, 16, "%02u:%02u:%02u",
TTW_hours, TTW_minutes, TTW_seconds);
+
return TTW_str;
}