Adding code for password generator
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@@ -0,0 +1,2 @@
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build/
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out/
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@@ -0,0 +1,46 @@
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{
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// Language version of C3.
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"langrev": "1",
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// Warnings used for all targets.
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"warnings": [ "no-unused" ],
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// Directories where C3 library files may be found.
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"dependency-search-paths": [ "lib" ],
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// Libraries to use for all targets.
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"dependencies": [ ],
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// Authors, optionally with email.
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"authors": [ "John Doe <john.doe@example.com>" ],
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// Version using semantic versioning.
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"version": "0.1.0",
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// Sources compiled for all targets.
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"sources": [ "src/**" ],
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// Test sources compiled for all targets.
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"test-sources": [ "test/**" ],
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// C sources if the project also compiles C sources
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// relative to the project file.
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// "c-sources": [ "csource/**" ],
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// Include directories for C sources relative to the project file.
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// "c-include-dirs": [ "csource/include" ],
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// Build location, relative to project file.
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"build-dir": "build",
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// Output location, relative to project file.
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"output": "build",
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// Architecture and OS target.
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// You can use 'c3c --list-targets' to list all valid targets.
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// "target": "windows-x64",
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// Targets.
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"targets": {
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"passgen": {
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// Executable or library.
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"type": "executable",
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// Additional libraries, sources
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// and overrides of global settings here.
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"linked-libraries": ["sqlite3"],
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},
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},
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// Global settings.
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// CPU name, used for optimizations in the LLVM backend.
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"cpu": "generic",
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// Optimization: "O0", "O1", "O2", "O3", "O4", "O5", "Os", "Oz".
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"opt": "O0"
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// See resources/examples/project_all_settings.json and 'c3c --list-project-properties' to see more properties.
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}
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create table passwords (
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Id integer primary key not null,
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Key varchar(256) not null,
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Password varchar(256) not null
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);
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insert into passwords values(NULL, 'test', 'supersecret');
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Binary file not shown.
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module passgen;
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import std::io;
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import sql3;
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import randpass;
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SqlHandle *db;
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fn int main(String[] args) {
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// TODO: init sqlite
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if (args.len < 2) {
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io::eprintn("error: incorrect number of args");
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io::eprintfn("usage: %s <passwords.db file>", args[0]);
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return -1;
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}
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String dbFile = args[1];
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SqlResult res = sql3::open((ZString)dbFile, &db);
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if (res != SqlResult.OK) {
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io::printfn("error: could not open database: %s", sql3::errMsg(db));
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return -1;
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}
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menu();
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return 0;
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}
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fn void menu() {
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bool quit = false;
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io::printn("Welcome to the password generator");
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io::printn("=================================\n");
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while (!quit) {
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io::printn("\noptions:\n(c)create password \n(g)get password");
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io::printn("(d)delete password\n(a)get all passwords\n(q)quit\n");
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io::print("> ");
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String? input = io::treadline();
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if (catch error = input) {
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io::printfn("invalid input: %s\n", error);
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continue;
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}
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if (input[0] == 'q' || input[0] == 'Q') {
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quit = true;
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continue;
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}
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if (input[0] == 'c' || input[0] == 'C') {
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createPassword();
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} else if (input[0] == 'g' || input[0] == 'G') {
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getPassword();
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} else if (input[0] == 'a' || input[0] == 'A') {
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getAllFromDB();
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} else if (input[0] == 'd' || input[0] == 'D') {
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deletePassword();
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}
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}
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io::printn("\nThank you for using the password generator. Good bye");
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io::printn("======================================================");
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}
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fn void createPassword() {
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io::printn("\ncreate new password\nEnter the name of password");
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io::print("> ");
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String? key = io::treadline();
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if (catch error = key) {
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io::printfn("error incorrect input: %s\n", error);
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return;
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}
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io::printn("Enter the length of the password");
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io::print("> ");
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int? len = io::treadline().to_int();
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if (catch error = len) {
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io::printfn("incorrect input for length: %s\n", error);
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return;
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}
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ZString password = randpass::getPassword(len);
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io::printfn("Your password for %s is %s", key, password);
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insertIntoDB(key, password);
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}
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fn void insertIntoDB(String key, ZString password) {
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ZString query = (ZString)string::format(mem, "insert into passwords values(NULL, '%s', '%s');", key, password);
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SqlStmt stmt;
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ZString *errMsg;
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SqlResult res = sql3::exec(db, query, null, null, errMsg);
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if (res != SqlResult.OK) {
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io::eprintfn("error storing password: %s", errMsg);
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sql3::free(errMsg);
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return;
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}
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}
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fn void getPassword() {
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io::printn("\nget password\nEnter the name of password");
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io::print("> ");
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String? key = io::treadline();
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if (catch error = key) {
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io::printfn("error incorrect input: %s\n", error);
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return;
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}
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queryPassword(key);
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}
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fn void queryPassword(String key) {
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ZString query = (ZString)string::format(mem, "select password from passwords where key='%s';", key);
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SqlStmt stmt;
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SqlResult res = sql3::prepareV2(db, query, -1, &stmt, null);
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if (res != SqlResult.OK) {
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io::eprintfn("error querying from db: %s", sql3::errMsg(db));
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return;
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}
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res = sql3::step(stmt);
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if (res == SqlResult.ROW) {
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ZString password = sql3::columnText(stmt, 0);
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io::printfn("the password for %s is %s", key, password);
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sql3::finalize(stmt);
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}
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}
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fn void getAllFromDB() {
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io::printn("\nall passwords");
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ZString query = "select * from passwords;";
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SqlStmt stmt;
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SqlResult res = sql3::prepareV2(db, query, -1, &stmt, null);
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if (res != SqlResult.OK) {
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io::eprintfn("error querying from db: %s", sql3::errMsg(db));
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return;
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}
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while ((res = sql3::step(stmt)) == SqlResult.ROW) {
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ZString key = sql3::columnText(stmt, 1);
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ZString password = sql3::columnText(stmt, 2);
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io::printfn("%s : %s", key, password);
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}
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sql3::finalize(stmt);
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}
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fn void deletePassword() {
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io::printn("\ndelete password\nEnter the name of password");
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io::print("> ");
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String? key = io::treadline();
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if (catch error = key) {
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io::eprintfn("error incorrect input: %s\n", error);
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return;
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}
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deleteFromDB(key);
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}
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fn void deleteFromDB(String key) {
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ZString query = (ZString)string::format(mem, "delete from passwords where key='%s';", key);
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SqlStmt stmt;
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ZString *errMsg;
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SqlResult res = sql3::exec(db, query, null, null, errMsg);
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if (res != SqlResult.OK) {
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io::eprintfn("error deleting password: %s", errMsg);
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sql3::free(errMsg);
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return;
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}
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}
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@@ -0,0 +1,16 @@
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module randpass;
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import std::io, std::math::random, std::time;
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char[] chars = "0123456789abcdefghijklmnoqprstuvwyzxABCDEFGHIJKLMNOQPRSTUYWVZX!@#$%^&*?[]{}-_=+,";
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uint numChars = 80;
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fn ZString getPassword(int len) {
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srand((ulong)time::now());
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char *password = malloc(len * char.sizeof);
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for (int i=0; i<len; i++) {
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password[i] = chars[rand(numChars)];
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}
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return (ZString)password;
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}
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@@ -0,0 +1,67 @@
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module sql3;
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alias SqlHandle = void*;
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alias SqlStmt = void*;
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alias SqlCallback = fn SqlResult (void *context, CInt nCols, ZString* result, ZString* colNames);
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extern fn SqlResult open(ZString file, SqlHandle *db) @cname("sqlite3_open");
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extern fn SqlResult close(SqlHandle db) @cname("sqlite3_close");
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extern fn SqlResult prepareV2(SqlHandle handle, ZString sql,
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CInt byte, SqlStmt* stmt,
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ZString* tail ) @cname("sqlite3_prepare_v2");
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extern fn SqlResult exec(SqlHandle db, ZString sql,
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SqlCallback callback,
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void* arg, ZString* errmsg) @cname("sqlite3_exec");
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extern fn ZString errMsg(SqlHandle db) @cname("sqlite3_errmsg");
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extern fn void free(ZString *errmsg) @cname("sqlite3_free");
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extern fn SqlResult step(SqlStmt stmt) @cname("sqlite3_step");
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extern fn SqlResult finalize(SqlStmt stmt) @cname("sqlite3_finalize");
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extern fn ZString columnText(SqlStmt stmt, int col) @cname("sqlite3_column_text");
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constdef SqlColType : int {
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INTEGER = 1,
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FLOAT = 2,
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BLOB = 4,
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NULL = 5,
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TEXT = 3,
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}
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constdef SqlResult : int {
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OK = 0,
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ERROR = 1,
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INTERNAL = 2,
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PERM = 3,
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ABORT = 4,
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BUSY = 5,
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LOCKED = 6,
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NOMEM = 7,
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READONLY = 8,
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INTERRUPT = 9,
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IOERR = 10,
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CORRUPT = 11,
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NOTFOUND = 12,
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FULL = 13,
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CANTOPEN = 14,
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PROTOCOL = 15,
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EMPTY = 16,
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SCHEMA = 17,
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TOOBIG = 18,
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CONSTRAINT = 19,
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MISMATCH = 20,
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MISUSE = 21,
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NOLFS = 22,
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AUTH = 23,
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FORMAT = 24,
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RANGE = 25,
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NOTADB = 26,
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NOTICE = 27,
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WARNING = 28,
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ROW = 100,
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DONE = 101,
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}
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