From 36cf8f3a3c44da00cc9255797153df3c02895379 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 13 Dec 2017 10:51:42 -0200
Subject: Code should not change the stack level after the initialization of a
string buffer.
---
loadlib.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/loadlib.c b/loadlib.c
index d1941a99..17633042 100644
--- a/loadlib.c
+++ b/loadlib.c
@@ -1,5 +1,5 @@
/*
-** $Id: loadlib.c,v 1.129 2016/12/04 20:17:24 roberto Exp roberto $
+** $Id: loadlib.c,v 1.130 2017/01/12 17:14:26 roberto Exp roberto $
** Dynamic library loader for Lua
** See Copyright Notice in lua.h
**
@@ -437,9 +437,9 @@ static const char *searchpath (lua_State *L, const char *name,
const char *sep,
const char *dirsep) {
luaL_Buffer msg; /* to build error message */
- luaL_buffinit(L, &msg);
if (*sep != '\0') /* non-empty separator? */
name = luaL_gsub(L, name, sep, dirsep); /* replace it by 'dirsep' */
+ luaL_buffinit(L, &msg);
while ((path = pushnexttemplate(L, path)) != NULL) {
const char *filename = luaL_gsub(L, lua_tostring(L, -1),
LUA_PATH_MARK, name);
@@ -569,10 +569,10 @@ static int searcher_preload (lua_State *L) {
static void findloader (lua_State *L, const char *name) {
int i;
luaL_Buffer msg; /* to build error message */
- luaL_buffinit(L, &msg);
/* push 'package.searchers' to index 3 in the stack */
if (lua_getfield(L, lua_upvalueindex(1), "searchers") != LUA_TTABLE)
luaL_error(L, "'package.searchers' must be a table");
+ luaL_buffinit(L, &msg);
/* iterate over available searchers to find a loader */
for (i = 1; ; i++) {
if (lua_rawgeti(L, 3, i) == LUA_TNIL) { /* no more searchers? */
--
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