mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-27 14:22:17 +00:00
77 lines
3.2 KiB
C++
77 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 2018-2020 Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stratosphere.hpp>
|
|
|
|
namespace ams::fssrv {
|
|
|
|
Result PathNormalizer::Normalize(const char **out_path, Buffer *out_buf, const char *path, bool preserve_unc, bool preserve_tail_sep, bool has_mount_name) {
|
|
/* Clear output. */
|
|
*out_path = nullptr;
|
|
*out_buf = Buffer();
|
|
|
|
/* Find start of path. */
|
|
const char *path_start = path;
|
|
if (has_mount_name) {
|
|
while (path_start < path + fs::MountNameLengthMax + 1) {
|
|
if (fssystem::PathTool::IsNullTerminator(*path_start)) {
|
|
break;
|
|
} else if (fssystem::PathTool::IsDriveSeparator(*(path_start++))) {
|
|
break;
|
|
}
|
|
}
|
|
R_UNLESS(path < path_start - 1, fs::ResultInvalidPath());
|
|
R_UNLESS(fssystem::PathTool::IsDriveSeparator(*(path_start - 1)), fs::ResultInvalidPath());
|
|
}
|
|
|
|
/* Check if we're normalized. */
|
|
bool normalized = false;
|
|
R_TRY(fssystem::PathTool::IsNormalized(&normalized, path_start));
|
|
|
|
if (normalized) {
|
|
/* If we're already normalized, no allocation is needed. */
|
|
*out_path = path;
|
|
} else {
|
|
/* Allocate a new buffer. */
|
|
auto buffer = std::make_unique<char[]>(fs::EntryNameLengthMax + 1);
|
|
R_UNLESS(buffer != nullptr, fs::ResultAllocationFailureInPathNormalizer());
|
|
|
|
/* Copy in mount name. */
|
|
const size_t mount_name_len = path_start - path;
|
|
std::memcpy(buffer.get(), path, mount_name_len);
|
|
|
|
/* Generate normalized path. */
|
|
size_t normalized_len = 0;
|
|
R_TRY(fssystem::PathTool::Normalize(buffer.get() + mount_name_len, &normalized_len, path_start, fs::EntryNameLengthMax + 1 - mount_name_len, preserve_unc));
|
|
|
|
/* Preserve the tail separator, if we should. */
|
|
if (preserve_tail_sep) {
|
|
if (fssystem::PathTool::IsSeparator(path[strnlen(path, fs::EntryNameLengthMax) - 1])) {
|
|
/* Nintendo doesn't actually validate this. */
|
|
R_UNLESS(mount_name_len + normalized_len < fs::EntryNameLengthMax, fs::ResultTooLongPath());
|
|
buffer[mount_name_len + normalized_len] = fssystem::StringTraits::DirectorySeparator;
|
|
buffer[mount_name_len + normalized_len + 1] = fssystem::StringTraits::NullTerminator;
|
|
}
|
|
}
|
|
|
|
/* Save output. */
|
|
*out_path = buffer.get();
|
|
*out_buf = std::move(buffer);
|
|
}
|
|
|
|
return ResultSuccess();
|
|
}
|
|
|
|
}
|