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78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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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/Vector.h>
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#include <LibCore/Account.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/GetPassword.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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extern "C" int main(int, char**);
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int main(int argc, char** argv)
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{
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const char* user = nullptr;
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Core::ArgsParser args_parser;
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args_parser.add_positional_argument(user, "User to switch to (defaults to user with UID 0)", "user", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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if (geteuid() != 0)
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fprintf(stderr, "Not running as root :(\n");
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auto account_or_error = (user) ? Core::Account::from_name(user) : Core::Account::from_uid(0);
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if (account_or_error.is_error()) {
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fprintf(stderr, "Core::Account::from_name: %s\n", account_or_error.error().characters());
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return 1;
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}
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Core::Account account = account_or_error.value();
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if (getuid() != 0 && account.has_password()) {
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auto password = Core::get_password();
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if (password.is_error()) {
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fprintf(stderr, "%s\n", strerror(password.error()));
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return 1;
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}
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if (!account.authenticate(password.value().characters())) {
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fprintf(stderr, "Incorrect or disabled password.\n");
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return 1;
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}
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}
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if (!account.login()) {
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perror("Core::Account::login");
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return 1;
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}
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execl(account.shell().characters(), account.shell().characters(), nullptr);
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perror("execl");
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return 1;
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}
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