aboutsummaryrefslogtreecommitdiffstats
path: root/util-src/ringbuffer.c
diff options
context:
space:
mode:
Diffstat (limited to 'util-src/ringbuffer.c')
-rw-r--r--util-src/ringbuffer.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/util-src/ringbuffer.c b/util-src/ringbuffer.c
index 3e17cdf5..f4a51cc9 100644
--- a/util-src/ringbuffer.c
+++ b/util-src/ringbuffer.c
@@ -198,6 +198,7 @@ static int rb_free(lua_State *L) {
static int rb_new(lua_State *L) {
size_t size = luaL_optinteger(L, 1, sysconf(_SC_PAGESIZE));
+ luaL_argcheck(L, size > 0, 1, "positive integer expected");
ringbuffer *b = lua_newuserdata(L, sizeof(ringbuffer) + size);
b->rpos = 0;