[PATCH libubox 2/4] lua/uloop: make get_sock_fd capable of absolute addresses
Karl Palsson
karlp at etactica.com
Fri Jun 26 06:14:56 EDT 2020
The original code required the use of relative addresses into the lua
stack. It should accept either.
Signed-off-by: Karl Palsson <karlp at etactica.com>
---
lua/uloop.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lua/uloop.c b/lua/uloop.c
index fcbe274..394970d 100644
--- a/lua/uloop.c
+++ b/lua/uloop.c
@@ -188,7 +188,8 @@ static int get_sock_fd(lua_State* L, int idx) {
lua_getfield(L, idx, "getfd");
if(lua_isnil(L, -1))
return luaL_error(L, "socket type missing 'getfd' method");
- lua_pushvalue(L, idx - 1);
+ /* if we have absolute, no need to adjust for getfield() call */
+ lua_pushvalue(L, idx > 0 ? idx: idx - 1);
lua_call(L, 1, 1);
fd = lua_tointeger(L, -1);
lua_pop(L, 1);
--
2.21.3
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