tools/hexnet: Add command line parser back

Reimplementation has started.

scripts/build.sh

@@ -62,7 +62,7 @@ COMPILE_COMMANDS=(
     "$CXX_WITH_FLAGS src/tools/dumpnbt.cpp -I./include -Lbin/lib -l:nbt.so -l:javacompat.so -l:cli.so -o bin/tools/dumpnbt"
     "$CXX_WITH_FLAGS src/tools/arraydump.cpp -I./include -Lbin/lib -l:file.so -l:cli.so -o bin/tools/arraydump"
     "$CXX_WITH_FLAGS src/tools/baseconvert.cpp -I./include -Lbin/lib -l:cli.so -o bin/tools/baseconvert"
-    #"$CXX_WITH_FLAGS src/tools/hexnet.cpp -I./include -Lbin/lib -l:cli.so -l:libsockpp.so -o bin/tools/hexnet"
+    "$CXX_WITH_FLAGS src/tools/hexnet.cpp -I./include -Lbin/lib -l:cli.so -l:libsockpp.so -o bin/tools/hexnet"
 )
 for command in ${!COMPILE_COMMANDS[@]}; do
     echo "${COMPILE_COMMANDS[command]}"

src/tools/hexnet.cpp

@@ -1,5 +1,8 @@
 //Copyright 2022, FOSS-VG Developers and Contributers
 //
+// Author(s):
+//   BodgeMaster, Shwoomple
+//
 //This program is free software: you can redistribute it and/or modify it
 //under the terms of the GNU Affero General Public License as published
 //by the Free Software Foundation, version 3.
@@ -13,26 +16,93 @@
 //version 3 along with this program.
 //If not, see https://www.gnu.org/licenses/agpl-3.0.en.html
 
-#include <iostream>
-#include <iomanip>
-#include <string>
-#include <cstdint>
-#include <cctype>
-#include <sockpp/tcp_acceptor.h>
-#include <sockpp/tcp6_acceptor.h>
-#include <sockpp/udp_socket.h>
-#include <sockpp/udp6_socket.h>
-#include <thread>
-#include <mutex>
 #include <csignal>
+#include <iostream>
+#include <mutex>
+#include <thread>
+#include <vector>
 
-#include "../lib/error.hpp"
 #include "../lib/cli.hpp"
+#include "../lib/error.hpp"
 
 #define EXIT_SUCCESS 0
 #define EXIT_RUNTIME 1
 #define EXIT_USAGE 2
 #define EXIT_UNIMPLEMENTED 3
 
-int main(int argc, char* argv[]) {
+std::mutex mutexStdin;
+std::mutex mutexStdout;
+std::mutex mutexNetIncoming;
+std::mutex mutexNetOutgoing;
+
+bool ipv4 = false;
+bool ipv6 = false;
+bool tcp = false;
+bool udp = false;
+
+void signalHandler(int signal) {
+    // shut down gracefully
+    std::cerr << "Received signal " << signal << ", shutting down." << std::endl;
+    std::exit(signal);
+}
+
+int main(int argc, char* argv[]) {
+    std::signal(SIGINT, signalHandler);
+    std::signal(SIGTERM, signalHandler);
+
+    std::vector<CLI::Flag> flags;
+    flags.push_back(CLI::Flag('4', "ipv4", "use IPv4, either this or IPv6 has to be specified"));
+    flags.push_back(CLI::Flag('6', "ipv6", "use IPv6, either this or IPv4 has to be specified"));
+    flags.push_back(CLI::Flag('t', "tcp", "use TCP, either this or UDP has to be specified"));
+    flags.push_back(CLI::Flag('u', "udp", "use UDP, either this or TCP has to be specified"));
+    flags.push_back(CLI::Flag('h', "help", "print this information and exit"));
+    flags.push_back(CLI::Flag('l', "license", "print license information and exit"));
+
+    std::vector<CLI::Option> options;
+    options.push_back(CLI::Option('c', "connect", "HOST", "make an outgoing connection to HOST instead of listening for an incoming connection"));
+
+    std::vector<CLI::Argument> arguments;
+    arguments.push_back(CLI::Argument("PORT", "the port to lsiten on (or connect to)"));
+
+    CLI::ArgumentsParser cliParser = CLI::ArgumentsParser(argc, argv, flags, options, arguments, "Arbitrary TCP/UDP connections in hex format");
+
+    if (cliParser.getFlag("help").value) {
+        std::cout << cliParser.getUsage() << std::endl;
+        return EXIT_SUCCESS;
+    }
+    if (cliParser.getFlag("license").value) {
+        std::cout
+            << "Copyright 2022, FOSS-VG Developers and Contributers\n"
+            << "\n"
+            << "Hexnet is part of the FOSS-VG development tool suite.\n"
+            << "\n"
+            << "This program is free software: you can redistribute it and/or modify it\n"
+            << "under the terms of the GNU Affero General Public License as published\n"
+            << "by the Free Software Foundation, version 3.\n"
+            << "\n"
+            << "This program is distributed in the hope that it will be useful,\n"
+            << "but WITHOUT ANY WARRANTY; without even the implied\n"
+            << "warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
+            << "See the GNU Affero General Public License for more details.\n"
+            << "\n"
+            << "You should have received a copy of the GNU Affero General Public License\n"
+            << "version 3 along with this program.\n"
+            << "If not, see https://www.gnu.org/licenses/agpl-3.0.en.html"
+            << std::endl;
+        return EXIT_SUCCESS;
+    }
+    if (cliParser.wrongUsage) {
+        std::cout << cliParser.getUsage() << std::endl;
+        return EXIT_USAGE;
+    }
+
+    ipv4 = cliParser.getFlag("ipv4").value;
+    ipv6 = cliParser.getFlag("ipv6").value;
+    tcp = cliParser.getFlag("tcp").value;
+    udp = cliParser.getFlag("udp").value;
+
+    if (!(ipv4 || ipv6) || !(tcp || udp)) {
+        std::cout << cliParser.getUsage() << std::endl;
+        return EXIT_USAGE;
+    }
 }