mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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90 lines
No EOL
2.9 KiB
C++
90 lines
No EOL
2.9 KiB
C++
/*
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* Copyright (c) 2019 Adubbz
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ncm_path_utils.hpp"
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#include "ncm_utils.hpp"
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namespace sts::ncm::path {
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void GetContentMetaPath(char* out, ContentId content_id, MakeContentPathFunc path_func, const char* root_path) {
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char tmp_path[FS_MAX_PATH-1] = {0};
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char content_path[FS_MAX_PATH-1] = {0};
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path_func(content_path, content_id, root_path);
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const size_t len = strnlen(content_path, FS_MAX_PATH-1);
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const size_t len_no_extension = len - 4;
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if (len_no_extension > len || len_no_extension >= FS_MAX_PATH-1) {
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std::abort();
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}
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strncpy(tmp_path, content_path, len_no_extension);
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memcpy(out, tmp_path, FS_MAX_PATH-1);
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const size_t out_len = strnlen(out, FS_MAX_PATH-1);
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if (out_len + 9 >= FS_MAX_PATH-1) {
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std::abort();
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}
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strncat(out, ".cnmt.nca", 0x2ff - out_len);
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}
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void GetContentFileName(char* out, ContentId content_id) {
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char content_name[sizeof(ContentId)*2+1] = {0};
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GetStringFromContentId(content_name, content_id);
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snprintf(out, FS_MAX_PATH-1, "%s%s", content_name, ".nca");
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}
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void GetPlaceHolderFileName(char* out, PlaceHolderId placeholder_id) {
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char placeholder_name[sizeof(PlaceHolderId)*2+1] = {0};
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GetStringFromPlaceHolderId(placeholder_name, placeholder_id);
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snprintf(out, FS_MAX_PATH-1, "%s%s", placeholder_name, ".nca");
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}
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bool IsNcaPath(const char* path) {
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PathView path_view(path);
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if (!path_view.HasSuffix(".nca")) {
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return false;
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}
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std::string_view file_name = path_view.GetFileName();
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if (file_name.length() != 0x24) {
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return false;
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}
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for (size_t i = 0; i < sizeof(Uuid)*2; i++) {
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if (!std::isxdigit(file_name.at(i))) {
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return false;
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}
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}
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return true;
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}
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bool PathView::HasPrefix(std::string_view prefix) const {
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return this->path.compare(0, prefix.length(), prefix) == 0;
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}
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bool PathView::HasSuffix(std::string_view suffix) const {
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return this->path.compare(this->path.length() - suffix.length(), suffix.length(), suffix) == 0;
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}
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std::string_view PathView::GetFileName() const {
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return this->path.substr(this->path.find_last_of("/") + 1);
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}
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} |