diff options
Diffstat (limited to 'liolib.c')
-rw-r--r-- | liolib.c | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -1,5 +1,5 @@ /* -** $Id: liolib.c,v 2.145 2015/06/21 13:50:29 roberto Exp roberto $ +** $Id: liolib.c,v 2.146 2015/07/07 17:03:34 roberto Exp roberto $ ** Standard I/O (and system) library ** See Copyright Notice in lua.h */ @@ -318,8 +318,15 @@ static int io_output (lua_State *L) { static int io_readline (lua_State *L); +/* +** maximum number of arguments to 'f:lines'/'io.lines' (it + 3 must fit +** in the limit for upvalues of a closure) +*/ +#define MAXARGLINE 250 + static void aux_lines (lua_State *L, int toclose) { int n = lua_gettop(L) - 1; /* number of arguments to read */ + luaL_argcheck(L, n <= MAXARGLINE, MAXARGLINE + 2, "too many arguments"); lua_pushinteger(L, n); /* number of arguments to read */ lua_pushboolean(L, toclose); /* close/not close file when finished */ lua_rotate(L, 2, 2); /* move 'n' and 'toclose' to their positions */ |