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/*
* Copyright (c) 2018-2023, OARC, Inc.
* All rights reserved.
*
* This file is part of dnsjit.
*
* dnsjit is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* dnsjit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with dnsjit. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "globals.h"
#include "core/log.h"
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
#include <pthread.h>
#include <signal.h>
#include <string.h>
#include <stdio.h>
static void* _sighthr(void* arg)
{
sigset_t* set = (sigset_t*)arg;
int sig = 0, err;
if ((err = sigwait(set, &sig))) {
gldebug("sigwait %d", err);
}
glfatal("signal %d", sig);
return 0;
}
int main(int argc, char* argv[])
{
lua_State* L;
int n, err;
sigset_t set;
pthread_t sighthr;
if (argc < 2) {
fprintf(stderr, "usage: %s <file.lua> ...\n", argv[0]);
exit(1);
}
sigfillset(&set);
if ((err = pthread_sigmask(SIG_BLOCK, &set, 0))) {
glfatal("Unable to set blocked signals with pthread_sigmask()");
return 2;
}
sigemptyset(&set);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGQUIT);
sigaddset(&set, SIGINT);
if ((err = pthread_create(&sighthr, 0, _sighthr, &set))) {
glfatal("Unable to start signal thread with pthread_create()");
return 2;
}
L = luaL_newstate();
luaL_openlibs(L);
dnsjit_globals(L);
lua_createtable(L, argc, 0);
for (n = 0; n < argc; n++) {
lua_pushstring(L, argv[n]);
lua_rawseti(L, -2, n);
}
lua_setglobal(L, "arg");
if ((err = luaL_loadfile(L, argv[1]))) {
switch (err) {
case LUA_ERRSYNTAX:
glcritical("%s: syntax error during pre-compilation", argv[1]);
break;
case LUA_ERRMEM:
glcritical("%s: memory allocation error", argv[1]);
break;
case LUA_ERRFILE:
glcritical("%s: cannot open/read file", argv[1]);
break;
default:
glcritical("%s: unknown error %d", argv[1], err);
break;
}
return 1;
}
if (lua_pcall(L, 0, 0, 0)) {
glcritical("%s: %s", argv[1], lua_tostring(L, -1));
lua_pop(L, 1);
return 1;
}
lua_close(L);
return 0;
}
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