mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
/*
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* Copyright (c) 2019-2020 Adubbz, 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 "ncm_utils.hpp"
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namespace ams::ncm {
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void GetStringFromContentId(char *out, ContentId content_id) {
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for (size_t i = 0; i < sizeof(ContentId); i++) {
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snprintf(out+i*2, 3, "%02x", content_id.uuid[i]);
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}
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}
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void GetStringFromPlaceHolderId(char *out, PlaceHolderId placeholder_id) {
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for (size_t i = 0; i < sizeof(PlaceHolderId); i++) {
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snprintf(out+i*2, 3, "%02x", placeholder_id.uuid[i]);
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}
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}
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Result GetPlaceHolderIdFromDirEntry(PlaceHolderId *out, struct dirent *dir_entry) {
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R_UNLESS(strnlen(dir_entry->d_name, 0x30) == 0x24, ncm::ResultInvalidPlaceHolderFile());
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R_UNLESS(strncmp(dir_entry->d_name + 0x20, ".nca", 4) == 0, ncm::ResultInvalidPlaceHolderFile());
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u8 tmp[sizeof(PlaceHolderId)] = {};
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char byte_string[2];
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char *end_ptr;
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u64 converted_val;
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for (size_t i = 0; i < sizeof(PlaceHolderId); i++) {
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char *name_char_pair = dir_entry->d_name + i * 2;
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byte_string[0] = name_char_pair[0];
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byte_string[1] = name_char_pair[1];
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converted_val = strtoull(byte_string, &end_ptr, 0x10);
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tmp[i] = (u8)converted_val;
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}
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PlaceHolderId placeholder_id;
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std::memcpy(placeholder_id.uuid.data, tmp, sizeof(PlaceHolderId));
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*out = placeholder_id;
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return ResultSuccess();
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}
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std::optional<ContentId> GetContentIdFromString(const char *str, size_t len) {
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if (len < 0x20) {
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return std::nullopt;
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}
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u8 tmp[sizeof(ContentId)] = {};
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char byte_string[2];
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char *end_ptr;
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u64 converted_val;
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for (size_t i = 0; i < sizeof(ContentId); i++) {
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const char *char_par = str + i * 2;
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byte_string[0] = char_par[0];
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byte_string[1] = char_par[1];
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converted_val = strtoull(byte_string, &end_ptr, 0x10);
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tmp[i] = (u8)converted_val;
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}
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ContentId content_id;
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std::memcpy(content_id.uuid.data, tmp, sizeof(ContentId));
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return std::optional<ContentId>(content_id);
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}
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}
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