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Copyright 2023 Lily Tsuru <lily.modeco80@protonmail.ch>
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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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151
src/main.cpp
151
src/main.cpp
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@ -1,40 +1,133 @@
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/post.hpp>
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#include <boost/asio/thread_pool.hpp>
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#include <format>
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#include <thread>
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#include "ansi.hpp"
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#include "fprint.hpp"
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#include "worker.hpp"
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namespace asio = boost::asio;
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struct Arguments {
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bool exact { false };
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std::uint32_t startLength = 2;
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std::uint32_t endLength = 8;
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void BruteMain() {
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asio::thread_pool pool(swbf::THREAD_COUNT);
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std::uint32_t targetHash;
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swbf::BruteforceWorker::Options options { .targetHash = 0x2c73af55, .exact = true, .startLength = 8 };
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/// Parse arguments from the main() argc/argv.
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static Arguments FromArgv(int argc, char** argv) {
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Arguments args;
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args.progname = argv[0];
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auto threadIndex = 0u;
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// post worker threads to run onto the thread pool & wait for them to complete
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for(int i = 0; i < swbf::THREAD_COUNT; ++i)
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asio::post(pool, [&, tid = threadIndex++]() {
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swbf::BruteforceWorker state(tid, options);
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state.Bruteforce('a' + tid);
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});
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bool done = false;
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while(!done) {
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done = swbf::DisplayThreadInfo();
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std::this_thread::sleep_for(std::chrono::milliseconds(66));
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// no options provided
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if(argc == 1) {
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args.DispHelp();
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std::exit(1);
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}
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pool.join(); // just in case!
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}
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// non-pepper getopt(). I'm too lazy to make it any better though
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for(int i = 1; i < argc; ++i) {
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if(argv[i][0] == '-' && argv[i][1] != '\0') {
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char sw = argv[i][1];
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int main() {
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BruteMain();
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// hacky. VERY hacky.
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auto cheap_atoi = [](char c) { return c - '0'; };
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switch(sw) {
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// flag options
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case 'X': // eXact
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args.exact = true;
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break;
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// value options
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case 's': // start length
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if(argv[i + 1] == nullptr || argv[i + 1][0] == '-') {
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swbf::fprint(stdout, "Invalid value passed to -s\n");
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std::exit(1);
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}
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args.startLength = cheap_atoi(*argv[i + 1]);
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i++;
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break;
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case 'e': // end length
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if(argv[i + 1] == nullptr || argv[i + 1][0] == '-') {
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swbf::fprint(stdout, "Invalid value passed to -e\n");
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std::exit(1);
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}
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args.endLength = cheap_atoi(*argv[i + 1]);
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i++;
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break;
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// terminals
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case '?':
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case 'h': {
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args.DispHelp();
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std::exit(0);
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}
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default:
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swbf::fprint(stdout, "Unknown command-line switch '-{}'\n", sw);
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args.DispHelp();
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std::exit(1);
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}
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} else {
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// Assume any non-positional argument is the hash value
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// (also, this will take *any* base, not just hex, but hex is the most useful)
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args.targetHash = strtol(argv[i], nullptr, 0);
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}
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}
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return args;
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}
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bool Validate() const {
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if(!targetHash) {
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swbf::fprint(stdout, "No hash provided\n");
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DispHelp();
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return false;
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}
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if((startLength < 2) || (startLength > endLength)) {
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swbf::fprint(stdout, "Invalid start/exact length\n");
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DispHelp();
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return false;
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}
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// omit checking for -e validity if we don't really need it
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if(!exact) {
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if((endLength > 8) || (endLength < startLength)) {
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swbf::fprint(stdout, "Invalid end length\n");
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DispHelp();
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return false;
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}
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}
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return true;
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}
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private:
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char* progname {};
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void DispHelp() const {
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swbf::fprint(stdout,
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// clang-format off
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"SWSF Bruteforcer, (C) 2023 Lily Tsuru under the MIT License\n"
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"Usage: {} [-?/-h] [-X] [-s START_LENGTH] [-e END_LENGTH] <hash to crack, in hexadecimal>\n"
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" -X Test exact length. Uses value of -s; -e is ignored in this mode.\n"
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" -s Start length to check. Must be greater than or equal to 2 and less than the end size (default 2)\n"
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" -e End length to check. Must be greater than the start size, and less than or equal to 8 (default 8)\n"
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" -?/-h Show this help message (and exit)\n",
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progname
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// clang-format on
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);
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}
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};
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int main(int argc, char** argv) {
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auto args = Arguments::FromArgv(argc, argv);
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if(!args.Validate()) {
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return 1;
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}
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swbf::BruteforceWorker::Options options {
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.targetHash = args.targetHash, .exact = args.exact, .startLength = args.startLength, .endLength = args.endLength
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};
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BruteMain(options);
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return 0;
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}
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#include "worker.hpp"
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/post.hpp>
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#include <boost/asio/thread_pool.hpp>
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#include <cstring>
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#include <vector>
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#include <thread>
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#include "ansi.hpp"
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#include "fprint.hpp"
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#include "scramble.hpp"
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namespace asio = boost::asio;
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namespace swbf {
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/// This class implements the display of progress
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struct ThreadInfoData {
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if(options.exact) {
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BruteforceForLength(prefix, options.startLength);
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} else {
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for(std::uint32_t i = options.startLength; i <= options.endLength; ++i)
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for(std::uint32_t i = options.startLength; i < options.endLength; ++i)
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BruteforceForLength(prefix, i);
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}
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return infoData[threadIndex];
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}
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void BruteMain(const swbf::BruteforceWorker::Options& options) {
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asio::thread_pool pool(swbf::THREAD_COUNT);
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auto threadIndex = 0u;
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// post worker threads to run onto the thread pool & wait for them to complete
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for(int i = 0; i < swbf::THREAD_COUNT; ++i)
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asio::post(pool, [&, tid = threadIndex++]() {
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swbf::BruteforceWorker state(tid, options);
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state.Bruteforce('a' + tid);
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});
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bool done = false;
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while(!done) {
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done = swbf::DisplayThreadInfo();
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std::this_thread::sleep_for(std::chrono::milliseconds(66));
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}
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pool.join(); // just in case!
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}
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} // namespace swbf
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/// private structure
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struct ThreadInfoData;
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/// returns true when all threads finished
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bool DisplayThreadInfo();
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/// Per-thread worker for brute-forcing
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struct BruteforceWorker {
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/// Options for the worker.
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std::uint32_t hash;
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};
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/// returns true when all threads finished
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bool DisplayThreadInfo();
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void BruteMain(const swbf::BruteforceWorker::Options& options);
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} // namespace swbf
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