mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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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 <stratosphere.hpp>
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namespace ams::cfg {
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namespace {
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std::atomic<u32> g_flag_mount_count;
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/* Helper. */
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void GetFlagMountName(char *dst) {
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util::SNPrintf(dst, fs::MountNameLengthMax + 1, "#flag%08x", g_flag_mount_count.fetch_add(1));
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}
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bool HasFlagFile(const char *flag_path) {
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/* All flags are not present until the SD card is. */
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if (!IsSdCardInitialized()) {
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return false;
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}
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/* Mount the SD card. */
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char mount_name[fs::MountNameLengthMax + 1];
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GetFlagMountName(mount_name);
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if (R_FAILED(fs::MountSdCard(mount_name))) {
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return false;
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}
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ON_SCOPE_EXIT { fs::Unmount(mount_name); };
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/* Check if the entry exists. */
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char full_path[fs::EntryNameLengthMax + 1];
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util::SNPrintf(full_path, sizeof(full_path), "%s:/%s", mount_name, flag_path[0] == '/' ? flag_path + 1 : flag_path);
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bool has_file;
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if (R_FAILED(fs::HasFile(std::addressof(has_file), full_path))) {
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return false;
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}
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return has_file;
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}
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Result DeleteFlagFile(const char *flag_path) {
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/* We need the SD card to be available to delete anything. */
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AMS_ABORT_UNLESS(IsSdCardInitialized());
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/* Mount the sd card. */
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char mount_name[fs::MountNameLengthMax + 1];
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GetFlagMountName(mount_name);
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R_TRY(fs::MountSdCard(mount_name));
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ON_SCOPE_EXIT { fs::Unmount(mount_name); };
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/* Get the flag path. */
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char full_path[fs::EntryNameLengthMax + 1];
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util::SNPrintf(full_path, sizeof(full_path), "%s:/%s", mount_name, flag_path[0] == '/' ? flag_path + 1 : flag_path);
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/* Delete the file. */
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R_TRY(fs::DeleteFile(full_path));
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return ResultSuccess();
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}
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}
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/* Flag utilities. */
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bool HasFlag(const sm::MitmProcessInfo &process_info, const char *flag) {
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return HasContentSpecificFlag(process_info.program_id, flag) || (process_info.override_status.IsHbl() && HasHblFlag(flag));
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}
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bool HasContentSpecificFlag(ncm::ProgramId program_id, const char *flag) {
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char content_flag[fs::EntryNameLengthMax + 1];
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util::SNPrintf(content_flag, sizeof(content_flag) - 1, "/atmosphere/contents/%016lx/flags/%s.flag", static_cast<u64>(program_id), flag);
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return HasFlagFile(content_flag);
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}
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bool HasGlobalFlag(const char *flag) {
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char global_flag[fs::EntryNameLengthMax + 1];
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util::SNPrintf(global_flag, sizeof(global_flag) - 1, "/atmosphere/flags/%s.flag", flag);
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return HasFlagFile(global_flag);
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}
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bool HasHblFlag(const char *flag) {
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char hbl_flag[0x100];
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util::SNPrintf(hbl_flag, sizeof(hbl_flag) - 1, "hbl_%s", flag);
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return HasGlobalFlag(hbl_flag);
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}
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Result DeleteGlobalFlag(const char *flag) {
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char global_flag[fs::EntryNameLengthMax + 1];
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util::SNPrintf(global_flag, sizeof(global_flag) - 1, "/atmosphere/flags/%s.flag", flag);
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return DeleteFlagFile(global_flag);
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}
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}
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