Fix mac cmd size retrieval

sualko · web-flow · commit 2226826beb3c · 2019-10-21T19:21:29.000+02:00
diff --git a/src/lmic/lmic.c b/src/lmic/lmic.c
@@ -711,7 +711,7 @@ static CONST_TABLE(u1_t, macCmdSize)[] = {
 static u1_t getMacCmdSize(u1_t macCmd) {
     if (macCmd < 2)
         return 0;
-    if (macCmd >= LENOF_TABLE(macCmdSize) - 2)
+    if ((macCmd - 2) >= LENOF_TABLE(macCmdSize))
         return 0;
     return TABLE_GET_U1(macCmdSize, macCmd - 2);
 }

Original file line number	Diff line number	Diff line change
`@@ -711,7 +711,7 @@ static CONST_TABLE(u1_t, macCmdSize)[] = {`
`711`	`711`	`static u1_t getMacCmdSize(u1_t macCmd) {`
`712`	`712`	`if (macCmd < 2)`
`713`	`713`	`return 0;`
`714`		`- if (macCmd >= LENOF_TABLE(macCmdSize) - 2)`
	`714`	`+ if ((macCmd - 2) >= LENOF_TABLE(macCmdSize))`
`715`	`715`	`return 0;`
`716`	`716`	`return TABLE_GET_U1(macCmdSize, macCmd - 2);`
`717`	`717`	`}`