On Sat, Dec 5, 2015 at 10:51 PM, David Carlisle <[email protected]> wrote:
> On 5 December 2015 at 21:17, luigi scarso <[email protected]> wrote: > > > > > > On Sat, Dec 5, 2015 at 6:51 PM, David Carlisle <[email protected]> > > wrote: > > > > > try > > > > \directlua{print('os.execute():|',os.execute(),'|')} > > \bye > > > > with also > > --shell-restricted > > --no-shell-escape > > > > It should be ok. > > > > > > > > -- > > luigi > > > Oh thanks! > > Hmm so os.execute with empty argument doesn't call the shell and just > returns 0,1 or 2? > > I have to ask, could I have deduced that from the manual?;-) > The current code is static int os_execute(lua_State * L) { int allow = 0; int ret = 1; char *safecmd = NULL; char *cmdname = NULL; const char *cmd = luaL_optstring(L, 1, NULL); if (cmd == NULL) { /* pretend we are \.{\\pdfshellescape} */ if (shellenabledp <= 0) { lua_pushinteger(L, 0); } else if (restrictedshell == 0) { lua_pushinteger(L, 1); } else { lua_pushinteger(L, 2); } return 1; } : } but I'm not sure that this will be the final form --- maybe for this reason it is still to be documented. -- luigi
