Atmosphere/stratosphere/ams_mitm/source/amsmitm_fs_utils.cpp

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2019-11-21 09:48:47 +00:00
/*
* Copyright (c) 2018-2019 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>
#include "amsmitm_initialization.hpp"
#include "amsmitm_fs_utils.hpp"
namespace ams::mitm::fs {
namespace {
/* Globals. */
FsFileSystem g_sd_filesystem;
/* Helpers. */
Result EnsureSdInitialized() {
R_UNLESS(mitm::IsInitialized(), ams::fs::ResultSdCardNotPresent());
return ResultSuccess();
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, const char *src_path) {
if (src_path[0] == '/') {
std::snprintf(dst_path, dst_path_size, "/atmosphere%s", src_path);
} else {
std::snprintf(dst_path, dst_path_size, "/atmosphere/%s", src_path);
}
}
void FormatAtmosphereSdPath(char *dst_path, size_t dst_path_size, ncm::ProgramId program_id, const char *src_path) {
if (src_path[0] == '/') {
std::snprintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx%s", static_cast<u64>(program_id), src_path);
} else {
std::snprintf(dst_path, dst_path_size, "/atmosphere/contents/%016lx/%s", static_cast<u64>(program_id), src_path);
}
}
}
void OpenGlobalSdCardFileSystem() {
R_ASSERT(fsOpenSdCardFileSystem(&g_sd_filesystem));
}
Result OpenSdFile(FsFile *out, const char *path, u32 mode) {
R_TRY(EnsureSdInitialized());
return fsFsOpenFile(&g_sd_filesystem, path, mode, out);
}
Result OpenAtmosphereSdFile(FsFile *out, const char *path, u32 mode) {
char fixed_path[FS_MAX_PATH];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), path);
return OpenSdFile(out, fixed_path, mode);
}
Result OpenAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, u32 mode) {
char fixed_path[FS_MAX_PATH];
FormatAtmosphereSdPath(fixed_path, sizeof(fixed_path), program_id, path);
return OpenSdFile(out, fixed_path, mode);
}
}