mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-10 07:06:34 +00:00
90 lines
3.2 KiB
C++
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++) {
|
|
util::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);
|
|
util::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);
|
|
util::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;
|
|
}
|
|
|
|
}
|