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111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
/*
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* Copyright (c) 2020, Peter Elliott <pelliott@ualberta.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Types.h>
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#include <LibCore/Account.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibCore/GetPassword.h>
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#include <string.h>
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#include <unistd.h>
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int main(int argc, char** argv)
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{
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if (geteuid() != 0) {
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fprintf(stderr, "Not running as root :^(\n");
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return 1;
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}
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if (pledge("stdio wpath rpath cpath tty", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/etc/passwd", "rwc") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil("/etc/group", "rwc") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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bool del = false;
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bool lock = false;
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bool unlock = false;
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const char* username = nullptr;
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auto args_parser = Core::ArgsParser();
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args_parser.add_option(del, "Delete password", "delete", 'd');
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args_parser.add_option(lock, "Lock password", "lock", 'l');
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args_parser.add_option(unlock, "Unlock password", "unlock", 'u');
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args_parser.add_positional_argument(username, "Username", "username", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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uid_t current_uid = getuid();
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auto account_or_error = (username) ? Core::Account::from_name(username) : Core::Account::from_uid(current_uid);
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if (account_or_error.is_error()) {
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fprintf(stderr, "Core::Account::%s: %s\n", (username) ? "from_name" : "from_uid", account_or_error.error().characters());
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return 1;
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}
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// target_account is the account we are changing the password of.
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auto target_account = account_or_error.value();
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if (current_uid != 0 && current_uid != target_account.uid()) {
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fprintf(stderr, "You can't modify passwd for %s\n", username);
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return 1;
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}
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if (del) {
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target_account.delete_password();
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} else if (lock) {
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target_account.set_password_enabled(false);
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} else if (unlock) {
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target_account.set_password_enabled(true);
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} else {
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auto new_password = Core::get_password("New password: ");
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if (new_password.is_error()) {
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fprintf(stderr, "%s\n", strerror(new_password.error()));
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return 1;
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}
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target_account.set_password(new_password.value().characters());
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}
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if (!target_account.sync()) {
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perror("Core::Account::Sync");
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}
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return 0;
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}
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