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https://github.com/Atmosphere-NX/Atmosphere.git
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110 lines
3.9 KiB
C++
110 lines
3.9 KiB
C++
/*
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* Copyright (c) 2018-2019 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 <sys/stat.h>
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#include "updater_paths.hpp"
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namespace ams::updater {
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namespace {
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/* Actual paths. */
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constexpr const char *BootImagePackageMountPath = "bip";
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constexpr const char *BctPathNx = "bip:/nx/bct";
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constexpr const char *Package1PathNx = "bip:/nx/package1";
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constexpr const char *Package2PathNx = "bip:/nx/package2";
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constexpr const char *BctPathA = "bip:/a/bct";
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constexpr const char *Package1PathA = "bip:/a/package1";
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constexpr const char *Package2PathA = "bip:/a/package2";
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const char *ChooseCandidatePath(const char * const *candidates, size_t num_candidates) {
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AMS_ASSERT(num_candidates > 0);
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for (size_t i = 0; i < num_candidates; i++) {
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struct stat buf;
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if (stat(candidates[i], &buf) != 0) {
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continue;
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}
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if (!S_ISREG(buf.st_mode)) {
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continue;
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}
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return candidates[i];
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}
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/* Nintendo just uses the last candidate if they all fail...should we abort? */
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return candidates[num_candidates - 1];
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}
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}
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const char *GetBootImagePackageMountPath() {
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return BootImagePackageMountPath;
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}
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const char *GetBctPath(BootImageUpdateType boot_image_update_type) {
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switch (boot_image_update_type) {
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case BootImageUpdateType::Erista:
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{
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constexpr const char *candidates[] = {BctPathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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case BootImageUpdateType::Mariko:
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{
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constexpr const char *candidates[] = {BctPathA, BctPathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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const char *GetPackage1Path(BootImageUpdateType boot_image_update_type) {
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switch (boot_image_update_type) {
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case BootImageUpdateType::Erista:
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{
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constexpr const char *candidates[] = {Package1PathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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case BootImageUpdateType::Mariko:
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{
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constexpr const char *candidates[] = {Package1PathA, Package1PathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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const char *GetPackage2Path(BootImageUpdateType boot_image_update_type) {
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switch (boot_image_update_type) {
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case BootImageUpdateType::Erista:
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{
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constexpr const char *candidates[] = {Package2PathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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case BootImageUpdateType::Mariko:
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{
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constexpr const char *candidates[] = {Package2PathA, Package2PathNx};
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return ChooseCandidatePath(candidates, util::size(candidates));
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}
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AMS_UNREACHABLE_DEFAULT_CASE();
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}
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}
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}
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