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git subrepo clone https://github.com/Atmosphere-NX/Atmosphere-libs libraries

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subrepo:
  subdir:   "libraries"
  merged:   "07af583b"
upstream:
  origin:   "https://github.com/Atmosphere-NX/Atmosphere-libs"
  branch:   "master"
  commit:   "07af583b"
git-subrepo:
  version:  "0.4.0"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "5d6aba9"
This commit is contained in:
Michael Scire 2019-12-09 03:57:37 -08:00 • committed by SciresM
parent 28717bfd27
commit 0105455086
294 changed files with 29915 additions and 0 deletions
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77
libraries/libstratosphere/source/fssrv/fssrv_path_normalizer.cpp Normal file
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/*
* Copyright (c) 2018-2019 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();
}
}