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https://github.com/LadybirdBrowser/ladybird.git
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eca20e92da
- Refactor env to use Core::ArgsParser - create symlink from /bin/env to /usr/bin/env for compatiability
93 lines
3.3 KiB
C++
93 lines
3.3 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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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 <LibCore/ArgsParser.h>
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#include <LibCore/DirIterator.h>
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#include <stdio.h>
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#include <stdlib.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 (pledge("stdio rpath exec", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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bool ignore_env = false;
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const char* split_string = nullptr;
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Vector<const char*> values;
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Core::ArgsParser args_parser;
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args_parser.add_option(ignore_env, "Start with an empty environment", "ignore-environment", 'i');
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args_parser.add_option(split_string, "Process and split S into separate arguments; used to pass multiple arguments on shebang lines", "split-string", 'S', "S");
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args_parser.add_positional_argument(values, "Environment and commands", "env/command", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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if (ignore_env)
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clearenv();
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size_t argv_start;
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for (argv_start = 0; argv_start < values.size(); ++argv_start) {
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if (StringView { values[argv_start] }.contains('=')) {
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putenv(const_cast<char*>(values[argv_start]));
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} else {
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break;
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}
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}
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Vector<String> split_string_storage;
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Vector<const char*> new_argv;
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if (split_string) {
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for (auto view : StringView(split_string).split_view(' ')) {
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split_string_storage.append(view);
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}
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for (auto& str : split_string_storage) {
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new_argv.append(str.characters());
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}
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}
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for (size_t i = argv_start; i < values.size(); ++i) {
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new_argv.append(values[i]);
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}
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if (new_argv.size() == 0) {
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for (auto entry = environ; *entry != nullptr; ++entry)
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printf("%s\n", *entry);
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return 0;
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}
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new_argv.append(nullptr);
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const char* executable = new_argv[0];
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char* const* new_argv_ptr = const_cast<char* const*>(&new_argv[0]);
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execvp(executable, new_argv_ptr);
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perror("execvp");
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return 1;
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}
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