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Atmosphere/libraries/libstratosphere/source/ncm/ncm_content_id_utils.cpp
Adubbz a50d6a2696
NCM client implementation (#858)
* ncm: Implement InstallTaskDataBase and FileInstallTaskData

* ncm: minor bugfixes

* ncm: Implemented MemoryInstallTaskData

* ncm: more std

* ncm: begin implementing install task base

* ncm: move protected funcs

* ncm: fix recursive include

* ncm: more install task progress

* ncm install task: implement IncrementProgress and update UpdateThroughputMeasurement

* ncm: more work

* ncm client: more progress

* ncm client: more progress

* ncm client: finish implementing GetContentMetaInfoList

* ncm client: more progress

* ncm client: finished InstallTaskBase

* ncm client: implement PackageInstallTaskBase

* ncm client: fixes

* ncm: improve accuracy

* ncm client: implement PackageInstallTask

* ncm client: implement PackageSystemUpdateTask

* ncm client: minor name tweaks

* ncm client: implement SubmissionPackageInstallTask

* ncm client: add missing this to SubmissionPackageInstallTask

* ncm client: add missing nullptr check to SubmissionPackageInstallTask destructor

* ncm client: SubmissionPackageInstallTask fixes

* ncm: fix forward declarations

* ncm client: added simplified funcs

* ncm: cleanup client code

* ncm: fix bug introduced by cleanup

* ncm: fix typo

* ncm: implement correct ReadVariationContentMetaInfoList behavior

* ncm: correct InstallContentMetaWriter ctor

* ncm: correct conversion of content meta header types

Co-authored-by: Michael Scire <SciresM@gmail.com>
2020-04-03 22:40:46 -07:00

90 lines
3.2 KiB
C++

/*
* Copyright (c) 2019-2020 Adubbz, 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::ncm {
namespace {
void GetStringFromBytes(char *dst, const void *src, size_t count) {
for (size_t i = 0; i < count; i++) {
std::snprintf(dst + 2 * i, 3, "%02x", static_cast<const u8 *>(src)[i]);
}
}
bool GetBytesFromString(void *dst, size_t dst_size, const char *src, size_t src_size) {
/* Each byte is comprised of hex characters. */
if (!util::IsAligned(src_size, 2) || (dst_size * 2 < src_size)) {
return false;
}
/* Convert each character pair to a byte until we reach the end. */
for (size_t i = 0; i < src_size; i += 2) {
char tmp[3];
strlcpy(tmp, src + i, sizeof(tmp));
char *err = nullptr;
reinterpret_cast<u8 *>(dst)[i / 2] = static_cast<u8>(std::strtoul(tmp, std::addressof(err), 16));
if (*err != '\x00') {
return false;
}
}
return true;
}
}
ContentIdString GetContentIdString(ContentId id) {
ContentIdString str;
GetStringFromContentId(str.data, sizeof(str), id);
return str;
}
void GetStringFromContentId(char *dst, size_t dst_size, ContentId id) {
AMS_ABORT_UNLESS(dst_size > ContentIdStringLength);
GetStringFromBytes(dst, std::addressof(id), sizeof(id));
}
void GetStringFromRightsId(char *dst, size_t dst_size, fs::RightsId id) {
AMS_ABORT_UNLESS(dst_size > RightsIdStringLength);
GetStringFromBytes(dst, std::addressof(id), sizeof(id));
}
void GetTicketFileStringFromRightsId(char *dst, size_t dst_size, fs::RightsId id) {
AMS_ABORT_UNLESS(dst_size > TicketFileStringLength);
ContentIdString str;
GetStringFromRightsId(str.data, sizeof(str), id);
std::snprintf(dst, dst_size, "%s.tik", str.data);
}
void GetCertificateFileStringFromRightsId(char *dst, size_t dst_size, fs::RightsId id) {
AMS_ABORT_UNLESS(dst_size > CertFileStringLength);
ContentIdString str;
GetStringFromRightsId(str.data, sizeof(str), id);
std::snprintf(dst, dst_size, "%s.cert", str.data);
}
std::optional<ContentId> GetContentIdFromString(const char *str, size_t len) {
if (len < ContentIdStringLength) {
return std::nullopt;
}
ContentId content_id;
return GetBytesFromString(std::addressof(content_id), sizeof(content_id), str, ContentIdStringLength) ? std::optional<ContentId>(content_id) : std::nullopt;
}
}