boundry check for tosend buffer

2020-09-28 17:46:12 +02:00
parent 709b872498
commit 566d6dc4b7
1 changed files with 7 additions and 1 deletions
--- a/armsrc/BigBuf.c
+++ b/armsrc/BigBuf.c
@@ -292,6 +292,12 @@ void tosend_reset(void) {
 }

 void tosend_stuffbit(int b) {
+
+    if (toSend.max >= TOSEND_BUFFER_SIZE - 1) {
+        Dbprintf(_RED_("toSend overflow"));
+        return;
+    }
+    
    if (toSend.bit >= 8) {
        toSend.max++;
        toSend.buf[toSend.max] = 0;
@@ -299,7 +305,7 @@ void tosend_stuffbit(int b) {
    }

    if (b)
-        toSend.buf[ toSend.max] |= (1 << (7 - toSend.bit));
+        toSend.buf[toSend.max] |= (1 << (7 - toSend.bit));

    toSend.bit++;