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more secure definition for lua_concat

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Roberto Ierusalimschy
2001-02-14 15:04:11 -02:00
parent 1c2501fad4
commit 5d9b8b7cdc
2 changed files with 15 additions and 16 deletions
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13
lauxlib.c
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@@ -1,5 +1,5 @@
/*
** $Id: lauxlib.c,v 1.45 2001/01/25 16:45:36 roberto Exp roberto $
** $Id: lauxlib.c,v 1.46 2001/02/02 19:02:40 roberto Exp roberto $
** Auxiliary functions for building Lua libraries
** See Copyright Notice in lua.h
*/
@@ -166,10 +166,8 @@ static void adjuststack (luaL_Buffer *B) {
}
else break;
} while (toget < B->level);
if (toget >= 2) {
lua_concat(L, toget);
B->level = B->level - toget + 1;
}
lua_concat(L, toget);
B->level = B->level - toget + 1;
}
}
@@ -194,10 +192,7 @@ LUALIB_API void luaL_addstring (luaL_Buffer *B, const char *s) {
LUALIB_API void luaL_pushresult (luaL_Buffer *B) {
emptybuffer(B);
if (B->level == 0)
lua_pushlstring(B->L, NULL, 0);
else if (B->level > 1)
lua_concat(B->L, B->level);
lua_concat(B->L, B->level);
B->level = 1;
}