mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2024-11-13 22:16:45 +00:00
125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/*
|
|
* hfs.c
|
|
*
|
|
* Copyright (c) 2020-2021, 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 "gamecard.h"
|
|
|
|
bool hfsReadPartitionData(HashFileSystemContext *ctx, void *out, u64 read_size, u64 offset)
|
|
{
|
|
if (!ctx || !ctx->size || !out || !read_size || (offset + read_size) > ctx->size)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
/* Read partition data. */
|
|
if (!gamecardReadStorage(out, read_size, ctx->offset + offset))
|
|
{
|
|
LOG_MSG("Failed to read Hash FS partition data!");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool hfsReadEntryData(HashFileSystemContext *ctx, HashFileSystemEntry *fs_entry, void *out, u64 read_size, u64 offset)
|
|
{
|
|
if (!ctx || !fs_entry || !fs_entry->size || (fs_entry->offset + fs_entry->size) > ctx->size || !out || !read_size || (offset + read_size) > fs_entry->size)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
/* Read entry data. */
|
|
if (!hfsReadPartitionData(ctx, out, read_size, ctx->header_size + fs_entry->offset + offset))
|
|
{
|
|
LOG_MSG("Failed to read Partition FS entry data!");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool hfsGetTotalDataSize(HashFileSystemContext *ctx, u64 *out_size)
|
|
{
|
|
u64 total_size = 0;
|
|
u32 entry_count = hfsGetEntryCount(ctx);
|
|
HashFileSystemEntry *fs_entry = NULL;
|
|
|
|
if (!entry_count || !out_size)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
for(u32 i = 0; i < entry_count; i++)
|
|
{
|
|
if (!(fs_entry = hfsGetEntryByIndex(ctx, i)))
|
|
{
|
|
LOG_MSG("Failed to retrieve Hash FS entry #%u!", i);
|
|
return false;
|
|
}
|
|
|
|
total_size += fs_entry->size;
|
|
}
|
|
|
|
*out_size = total_size;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool hfsGetEntryIndexByName(HashFileSystemContext *ctx, const char *name, u32 *out_idx)
|
|
{
|
|
HashFileSystemEntry *fs_entry = NULL;
|
|
u32 entry_count = hfsGetEntryCount(ctx), name_table_size = 0;
|
|
char *name_table = hfsGetNameTable(ctx);
|
|
|
|
if (!entry_count || !name_table || !name || !*name || !out_idx)
|
|
{
|
|
LOG_MSG("Invalid parameters!");
|
|
return false;
|
|
}
|
|
|
|
name_table_size = ((HashFileSystemHeader*)ctx->header)->name_table_size;
|
|
|
|
for(u32 i = 0; i < entry_count; i++)
|
|
{
|
|
if (!(fs_entry = hfsGetEntryByIndex(ctx, i)))
|
|
{
|
|
LOG_MSG("Failed to retrieve Hash FS entry #%u!", i);
|
|
break;
|
|
}
|
|
|
|
if (fs_entry->name_offset >= name_table_size)
|
|
{
|
|
LOG_MSG("Name offset from Hash FS entry #%u exceeds name table size!", i);
|
|
break;
|
|
}
|
|
|
|
if (!strcmp(name_table + fs_entry->name_offset, name))
|
|
{
|
|
*out_idx = i;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|