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bug fix - 8efe9f23fa

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iceman1001 2024-02-04 11:38:41 +01:00
commit f34c746471
1 changed files with 8 additions and 4 deletions
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12
client/deps/liblua/ltablib.c
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@ -4,7 +4,7 @@
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
#include <limits.h>
#include <stddef.h> #include <stddef.h>
#define ltablib_c #define ltablib_c
@ -134,14 +134,18 @@ static int pack(lua_State *L) {
static int unpack(lua_State *L) { static int unpack(lua_State *L) {
int i, e, n; int i, e;
unsigned int n;
luaL_checktype(L, 1, LUA_TTABLE); luaL_checktype(L, 1, LUA_TTABLE);
i = luaL_optint(L, 2, 1); i = luaL_optint(L, 2, 1);
e = luaL_opt(L, luaL_checkint, 3, luaL_len(L, 1)); e = luaL_opt(L, luaL_checkint, 3, luaL_len(L, 1));
if (i > e) return 0; /* empty range */ if (i > e) return 0; /* empty range */
n = e - i + 1; /* number of elements */
if (n <= 0 || !lua_checkstack(L, n)) /* n <= 0 means arith. overflow */ n = (unsigned int)e - (unsigned int)i; /* number of elements minus 1 */
if (n > (INT_MAX - 10) || !lua_checkstack(L, ++n))
return luaL_error(L, "too many results to unpack"); return luaL_error(L, "too many results to unpack");
lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */ lua_rawgeti(L, 1, i); /* push arg[i] (avoiding overflow problems) */
while (i++ < e) /* push arg[i + 1...e] */ while (i++ < e) /* push arg[i + 1...e] */
lua_rawgeti(L, 1, i); lua_rawgeti(L, 1, i);