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nxdumptool/source/core/legal_info.c
2023-04-08 13:42:22 +02:00

96 lines
3.1 KiB
C

/*
* legal_info.c
*
* Copyright (c) 2020-2023, DarkMatterCore <pabloacurielz@gmail.com>.
*
* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
*
* nxdumptool is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nxdumptool is distributed in the hope that 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 <https://www.gnu.org/licenses/>.
*/
#include "nxdt_utils.h"
#include "legal_info.h"
bool legalInfoInitializeContext(LegalInfoContext *out, NcaContext *nca_ctx)
{
if (!out || !nca_ctx || !*(nca_ctx->content_id_str) || nca_ctx->content_type != NcmContentType_LegalInformation || nca_ctx->content_size < NCA_FULL_HEADER_LENGTH || \
(nca_ctx->storage_id != NcmStorageId_GameCard && !nca_ctx->ncm_storage) || (nca_ctx->storage_id == NcmStorageId_GameCard && !nca_ctx->gamecard_offset) || \
nca_ctx->header.content_type != NcaContentType_Manual || nca_ctx->content_type_ctx || !out)
{
LOG_MSG_ERROR("Invalid parameters!");
return false;
}
RomFileSystemContext romfs_ctx = {0};
RomFileSystemFileEntry *xml_entry = NULL;
bool success = false;
/* Free output context beforehand. */
legalInfoFreeContext(out);
/* Initialize RomFS context. */
if (!romfsInitializeContext(&romfs_ctx, &(nca_ctx->fs_ctx[0]), NULL))
{
LOG_MSG_ERROR("Failed to initialize RomFS context!");
goto end;
}
/* Retrieve RomFS file entry for 'legalinfo.xml'. */
if (!(xml_entry = romfsGetFileEntryByPath(&romfs_ctx, "/legalinfo.xml")))
{
LOG_MSG_ERROR("Failed to retrieve file entry for \"legalinfo.xml\" from RomFS!");
goto end;
}
LOG_MSG_INFO("Found 'legalinfo.xml' entry in LegalInformation NCA \"%s\".", nca_ctx->content_id_str);
/* Verify XML size. */
if (!xml_entry->size)
{
LOG_MSG_ERROR("Invalid XML size!");
goto end;
}
/* Allocate memory for the XML. */
out->authoring_tool_xml_size = xml_entry->size;
if (!(out->authoring_tool_xml = malloc(out->authoring_tool_xml_size)))
{
LOG_MSG_ERROR("Failed to allocate memory for the XML!");
goto end;
}
/* Read NACP data into memory buffer. */
if (!romfsReadFileEntryData(&romfs_ctx, xml_entry, out->authoring_tool_xml, out->authoring_tool_xml_size, 0))
{
LOG_MSG_ERROR("Failed to read XML!");
goto end;
}
/* Update NCA context pointer in output context. */
out->nca_ctx = nca_ctx;
/* Update content type context info in NCA context. */
nca_ctx->content_type_ctx = out;
nca_ctx->content_type_ctx_patch = false;
success = true;
end:
romfsFreeContext(&romfs_ctx);
if (!success) legalInfoFreeContext(out);
return success;
}