ladybird/Userland/ln.cpp
Andreas Kling 56701f91f9 ln: Make the 'path' argument optional
If 'path' is omitted, we create a link with the basename of whatever
the target is. This matches what other systems do.
2020-12-16 23:26:35 +01:00

73 lines
2.5 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/LexicalPath.h>
#include <LibCore/ArgsParser.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char** argv)
{
if (pledge("stdio cpath", nullptr) < 0) {
perror("pledge");
return 1;
}
bool symbolic = false;
const char* target = nullptr;
const char* path = nullptr;
Core::ArgsParser args_parser;
args_parser.add_option(symbolic, "Create a symlink", "symbolic", 's');
args_parser.add_positional_argument(target, "Link target", "target");
args_parser.add_positional_argument(path, "Link path", "path", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
String path_buffer;
if (!path) {
path_buffer = LexicalPath(target).basename();
path = path_buffer.characters();
}
if (symbolic) {
int rc = symlink(target, path);
if (rc < 0) {
perror("symlink");
return 1;
}
return 0;
}
int rc = link(target, path);
if (rc < 0) {
perror("link");
return 1;
}
return 0;
}