ladybird/Userland/Utilities/which.cpp
Andrew Kaster 170a7e263c Userland: Fail Core::find_executable_in_path on empty inputs
Before this patch, `which ""` or `type ""` would say that the empty
string is `/usr/local/bin/`.

Convert callers to consistently call is_empty() on the returned string
while we're at it, to support eventually removing the is_null() String
state in the future.
2022-01-04 07:38:42 +00:00

32 lines
751 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibCore/System.h>
#include <stdio.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio rpath"));
const char* filename = nullptr;
Core::ArgsParser args_parser;
args_parser.add_positional_argument(filename, "Name of executable", "executable");
args_parser.parse(arguments);
auto fullpath = Core::find_executable_in_path(filename);
if (fullpath.is_empty()) {
warnln("no '{}' in path", filename);
return 1;
}
outln("{}", fullpath);
return 0;
}