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- commit 8019e88dd1ac73a3baa71e9acfbc1b7a3fbc7442
- Author: Willy Tarreau <w@1wt.eu>
- Date: Tue Oct 16 17:37:12 2018 +0200
-
- BUILD: lua: silence some compiler warnings about potential null derefs (#2)
-
- Here we make sure that appctx is always taken from the unchecked value
- since we know it's an appctx, which explains why it's immediately
- dereferenced. A missing test was added to ensure that task_new() does
- not return a NULL.
-
- This may be backported to 1.8.
-
- (cherry picked from commit e09101e8d92b0c0ef8674fbc791e309112ab7f1c)
- Signed-off-by: Willy Tarreau <w@1wt.eu>
-
- diff --git a/src/hlua.c b/src/hlua.c
- index 64102e8a..ad9238ef 100644
- --- a/src/hlua.c
- +++ b/src/hlua.c
- @@ -2361,7 +2361,7 @@ __LJMP static int hlua_socket_connect_yield(struct lua_State *L, int status, lua
- return 2;
- }
-
- - appctx = objt_appctx(s->si[0].end);
- + appctx = __objt_appctx(s->si[0].end);
-
- /* Check for connection established. */
- if (appctx->ctx.hlua_cosocket.connected) {
- @@ -2473,7 +2473,7 @@ __LJMP static int hlua_socket_connect(struct lua_State *L)
- }
-
- hlua = hlua_gethlua(L);
- - appctx = objt_appctx(s->si[0].end);
- + appctx = __objt_appctx(s->si[0].end);
-
- /* inform the stream that we want to be notified whenever the
- * connection completes.
- @@ -5693,6 +5693,9 @@ static int hlua_register_task(lua_State *L)
- WILL_LJMP(luaL_error(L, "lua out of memory error."));
-
- task = task_new(MAX_THREADS_MASK);
- + if (!task)
- + WILL_LJMP(luaL_error(L, "Lua out of memory error."));
- +
- task->context = hlua;
- task->process = hlua_process_task;
-
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