diff options
Diffstat (limited to 'Build/source/libs/lua53/lua53-src/src/liolib.c')
-rw-r--r-- | Build/source/libs/lua53/lua53-src/src/liolib.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Build/source/libs/lua53/lua53-src/src/liolib.c b/Build/source/libs/lua53/lua53-src/src/liolib.c index 76f372acbe8..62b18f075b7 100644 --- a/Build/source/libs/lua53/lua53-src/src/liolib.c +++ b/Build/source/libs/lua53/lua53-src/src/liolib.c @@ -280,6 +280,8 @@ static int io_popen (lua_State *L) { const char *filename = luaL_checkstring(L, 1); const char *mode = luaL_optstring(L, 2, "r"); LStream *p = newprefile(L); + luaL_argcheck(L, ((mode[0] == 'r' || mode[0] == 'w') && mode[1] == '\0'), + 2, "invalid mode"); p->f = l_popen(L, filename, mode); p->closef = &io_pclose; return (p->f == NULL) ? luaL_fileresult(L, 0, filename) : 1; |