Merge pull request #41 from romanz/fsm_assert

fsm: add compile-time assert for response size validation
2015-08-24 14:03:28 +02:00 · 2015-08-24 14:03:28 +02:00 · e9e51b1377
parent 8b1f8a4595 1bb00adc37
commit e9e51b1377
1 changed files with 3 additions and 1 deletions
--- a/firmware/fsm.c
+++ b/firmware/fsm.c
@ -51,7 +51,9 @@

 static uint8_t msg_resp[MSG_OUT_SIZE];

-#define RESP_INIT(TYPE) TYPE *resp = (TYPE *)msg_resp; memset(resp, 0, sizeof(TYPE));
+#define RESP_INIT(TYPE) TYPE *resp = (TYPE *)msg_resp; \
+			_Static_assert(sizeof(msg_resp) >= sizeof(TYPE), #TYPE " is too large"); \
+			memset(resp, 0, sizeof(TYPE));

 void fsm_sendSuccess(const char *text)
 {