initial commit

.gitignore

@@ -0,0 +1,3 @@
+.idea/
+*build*/
+CMakeLists.txt

main.cpp

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+#include <iostream>
+#include <random>
+
+std::string random_string(std::size_t length, bool punc) {
+    std::string CHARACTERS;
+    std::string ALPHANUM = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+    std::string SPECIALS = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";
+
+    if (punc) {
+        CHARACTERS = ALPHANUM.append(SPECIALS);
+    } else {
+        CHARACTERS = ALPHANUM;
+    }
+    std::random_device random_device;
+    std::mt19937 generator(random_device());
+    std::uniform_int_distribution<> distribution(0, CHARACTERS.size() - 1);
+
+    std::string random_string;
+    for (std::size_t i = 0; i < length; ++i) {
+        random_string += CHARACTERS[distribution(generator)];
+    }
+    return random_string;
+}
+
+void show_usage(std::string binname) {
+    std::cerr << "Usage: " << binname << " [OPTIONS] " << std::endl
+              << "Options:" << std::endl
+              << "\t-h, --help        \t\tShow this help message" << std::endl
+              << "\t-l, --length      \t\tThe length of the password (default: 32)" << std::endl
+              << "\t-p, --punctuation \t\tToggle special characters (default: false)"
+              << std::endl;
+}
+
+int main(int argc, char *argv[]) {
+    std::string passlenstr;
+    int passlen;
+    bool punc = false;
+
+    if (argc < 1) {
+        std::cout << random_string(32, false) << std::endl;
+        return 0;
+    } else {
+        for (int i = 1; i < argc; ++i) {
+            std::string arg = argv[i];
+            if ((arg == "-h") || (arg == "--help")) {
+                show_usage(argv[0]);
+                return 0;
+            } else if (arg == "-p") {
+                punc = true;
+            } else if ((arg == "-l") || (arg == "--length")) {
+                passlenstr = argv[i + 1];
+                if (passlenstr.empty()) {
+                    std::cerr << "--destination option requires one argument." << std::endl;
+                    return 1;
+                }
+            }
+        }
+
+        if (passlenstr.empty()) {
+            passlenstr = "32";
+        }
+        passlen = std::stoi(passlenstr);
+        std::string password = random_string(passlen, punc);
+        std::cout << password << std::endl;
+        return 0;
+    }
+}
+