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251 lines
7.1 KiB
251 lines
7.1 KiB
/**
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* Digital Voice Modem - Conference FNE Software
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* GPLv2 Open Source. Use is subject to license terms.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* @package DVM / Conference FNE Software
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*
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*/
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//
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// Based on code from the MMDVMHost project. (https://github.com/g4klx/MMDVMHost)
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// Licensed under the GPLv2 License (https://opensource.org/licenses/GPL-2.0)
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//
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/*
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* Copyright (C) 2015,2016,2017 by Jonathan Naylor G4KLX
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* Copyright (C) 2020-2023 by Bryan Biedenkapp N2PLL
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "Defines.h"
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#include "common/Log.h"
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#include "FNEMain.h"
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#include "HostFNE.h"
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using namespace network;
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using namespace lookups;
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#include <cstdio>
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#include <cstdarg>
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#include <vector>
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#include <sys/types.h>
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#include <unistd.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <pwd.h>
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// ---------------------------------------------------------------------------
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// Macros
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// ---------------------------------------------------------------------------
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#define IS(s) (::strcmp(argv[i], s) == 0)
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// ---------------------------------------------------------------------------
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// Global Variables
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// ---------------------------------------------------------------------------
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int g_signal = 0;
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std::string g_progExe = std::string(__EXE_NAME__);
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std::string g_iniFile = std::string(DEFAULT_CONF_FILE);
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std::string g_lockFile = std::string(DEFAULT_LOCK_FILE);
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bool g_foreground = false;
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bool g_killed = false;
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uint8_t* g_gitHashBytes = nullptr;
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// ---------------------------------------------------------------------------
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// Global Functions
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// ---------------------------------------------------------------------------
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#if !defined(CATCH2_TEST_COMPILATION)
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/// <summary>
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/// Internal signal handler.
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/// </summary>
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/// <param name="signum"></param>
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static void sigHandler(int signum)
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{
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g_signal = signum;
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g_killed = true;
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}
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#endif
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/// <summary>
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/// Helper to print a fatal error message and exit.
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/// </summary>
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/// <remarks>This is a variable argument function.</remarks>
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/// <param name="msg">Message.</param>
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void fatal(const char* msg, ...)
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{
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char buffer[400U];
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::memset(buffer, 0x20U, 400U);
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va_list vl;
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va_start(vl, msg);
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::vsprintf(buffer, msg, vl);
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va_end(vl);
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::fprintf(stderr, "%s: %s\n", g_progExe.c_str(), buffer);
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exit(EXIT_FAILURE);
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}
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/// <summary>
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/// Helper to pring usage the command line arguments. (And optionally an error.)
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/// </summary>
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/// <param name="message">Error message.</param>
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/// <param name="arg">Error message arguments.</param>
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void usage(const char* message, const char* arg)
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{
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::fprintf(stdout, __PROG_NAME__ " %s (built %s)\r\n", __VER__, __BUILD__);
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::fprintf(stdout, "Copyright (c) 2017-2024 Bryan Biedenkapp, N2PLL and DVMProject (https://github.com/dvmproject) Authors.\n");
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::fprintf(stdout, "Portions Copyright (c) 2015-2021 by Jonathan Naylor, G4KLX and others\n\n");
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if (message != nullptr) {
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::fprintf(stderr, "%s: ", g_progExe.c_str());
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::fprintf(stderr, message, arg);
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::fprintf(stderr, "\n\n");
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}
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::fprintf(stdout,
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"usage: %s [-vhf]"
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"[-c <configuration file>]"
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"\n\n"
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" -v show version information\n"
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" -h show this screen\n"
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" -f foreground mode\n"
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"\n"
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" -c <file> specifies the configuration file to use\n"
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"\n"
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" -- stop handling options\n",
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g_progExe.c_str());
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exit(EXIT_FAILURE);
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}
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/// <summary>
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/// Helper to validate the command line arguments.
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/// </summary>
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/// <param name="argc">Argument count.</param>
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/// <param name="argv">Array of argument strings.</param>
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/// <returns>Count of remaining unprocessed arguments.</returns>
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int checkArgs(int argc, char* argv[])
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{
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int i, p = 0;
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// iterate through arguments
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for (i = 1; i <= argc; i++)
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{
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if (argv[i] == nullptr) {
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break;
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}
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if (*argv[i] != '-') {
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continue;
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}
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else if (IS("--")) {
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++p;
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break;
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}
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else if (IS("-c")) {
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if (argc-- <= 0)
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usage("error: %s", "must specify the configuration file to use");
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g_iniFile = std::string(argv[++i]);
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if (g_iniFile == "")
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usage("error: %s", "configuration file cannot be blank!");
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p += 2;
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}
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else if (IS("-v")) {
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::fprintf(stdout, __PROG_NAME__ " %s (built %s)\r\n", __VER__, __BUILD__);
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::fprintf(stdout, "Copyright (c) 2017-2024 Bryan Biedenkapp, N2PLL and DVMProject (https://github.com/dvmproject) Authors.\n");
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::fprintf(stdout, "Portions Copyright (c) 2015-2021 by Jonathan Naylor, G4KLX and others\n");
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if (argc == 2)
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exit(EXIT_SUCCESS);
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}
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else if (IS("-h")) {
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usage(nullptr, nullptr);
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if (argc == 2)
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exit(EXIT_SUCCESS);
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}
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else {
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usage("unrecognized option `%s'", argv[i]);
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}
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}
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if (p < 0 || p > argc) {
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p = 0;
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}
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return ++p;
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}
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// ---------------------------------------------------------------------------
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// Program Entry Point
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// ---------------------------------------------------------------------------
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#if !defined(CATCH2_TEST_COMPILATION)
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int main(int argc, char** argv)
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{
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g_gitHashBytes = new uint8_t[4U];
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::memset(g_gitHashBytes, 0x00U, 4U);
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uint32_t hash = ::strtoul(__GIT_VER_HASH__, 0, 16);
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__SET_UINT32(hash, g_gitHashBytes, 0U);
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if (argv[0] != nullptr && *argv[0] != 0)
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g_progExe = std::string(argv[0]);
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if (argc > 1) {
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// check arguments
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int i = checkArgs(argc, argv);
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if (i < argc) {
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argc -= i;
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argv += i;
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}
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else {
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argc--;
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argv++;
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}
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}
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::signal(SIGINT, sigHandler);
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::signal(SIGTERM, sigHandler);
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::signal(SIGHUP, sigHandler);
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int ret = 0;
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do {
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g_signal = 0;
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g_killed = false;
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HostFNE *fne = new HostFNE(g_iniFile);
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ret = fne->run();
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delete fne;
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if (g_signal == 2)
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::LogInfoEx(LOG_HOST, "Exited on receipt of SIGINT");
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if (g_signal == 15)
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::LogInfoEx(LOG_HOST, "Exited on receipt of SIGTERM");
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if (g_signal == 1)
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::LogInfoEx(LOG_HOST, "Restarting on receipt of SIGHUP");
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} while (g_signal == 1);
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::LogFinalise();
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return ret;
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}
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#endif |