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Make ld_lua_logdiag_register() a bit safer.

This commit is contained in:
Přemysl Eric Janouch 2011-01-09 07:09:18 +01:00
parent 54ef5ce450
commit 1cf5b9cd83
1 changed files with 5 additions and 4 deletions
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9
src/ld-lua.c
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@ -406,12 +406,13 @@ ld_lua_logdiag_register (lua_State *L)
lua_pop (L, 1); lua_pop (L, 1);
g_return_val_if_fail (ud != NULL, 0); g_return_val_if_fail (ud != NULL, 0);
/* Use a protected environment, so script errors won't cause leaking
* of the symbol object. Only a failure of the last three function calls
* before lua_pcall() may cause the symbol to leak.
*/
lua_checkstack (L, 3);
symbol = g_object_new (LD_TYPE_LUA_SYMBOL, NULL); symbol = g_object_new (LD_TYPE_LUA_SYMBOL, NULL);
/* Use a protected environment, so script errors won't cause leaking
* of the symbol object. Only the failure of one of the following three
* function calls may cause the symbol to leak.
*/
lua_pushlightuserdata (L, symbol); lua_pushlightuserdata (L, symbol);
lua_pushcclosure (L, process_registration, 1); lua_pushcclosure (L, process_registration, 1);
lua_insert (L, 1); lua_insert (L, 1);