@@ -, +, @@ 

---

 grammar/rainerscript.c | 8 ++++++++

 1 file changed, 8 insertions(+)

--- a/grammar/rainerscript.c	

+++ a/grammar/rainerscript.c	

@@ -1276,6 +1276,13 @@ str2num(es_str_t *s, int *bSuccess)

 	int64_t num = 0;

 	const uchar *const c = es_getBufAddr(s);

+	if(s->lenStr == 0) {

+		DBGPRINTF("rainerscript: str2num: strlen == 0; invalid input (no string)\n");

+		if(bSuccess != NULL) {

+			*bSuccess = 1;

+		}

+		goto done;

+	}

 	if(c[0] == '-') {

 		neg = -1;

 		i = -1;

@@ -1290,6 +1297,7 @@ str2num(es_str_t *s, int *bSuccess)

 	num *= neg;

 	if(bSuccess != NULL)

 		*bSuccess = (i == s->lenStr) ? 1 : 0;

+done:

 	return num;

 }