mirror of
https://github.com/wiiu-env/libmocha.git
synced 2024-09-08 18:23:20 +02:00
87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
#include "devoptab_fs.h"
|
|
#include "logger.h"
|
|
#include <mutex>
|
|
|
|
// Extended "magic" value that allows opening files with FS_OPEN_FLAG_UNENCRYPTED in underlying FSOpenFileEx() call similar to O_DIRECTORY
|
|
#ifndef O_UNENCRYPTED
|
|
#define O_UNENCRYPTED 0x4000000
|
|
#endif
|
|
|
|
int __fsa_open(struct _reent *r,
|
|
void *fileStruct,
|
|
const char *path,
|
|
int flags,
|
|
int mode) {
|
|
FSAFileHandle fd;
|
|
FSError status;
|
|
const char *fsMode;
|
|
__fsa_file_t *file;
|
|
|
|
if (!fileStruct || !path) {
|
|
r->_errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
// Map flags to open modes
|
|
int commonFlagMask = O_CREAT | O_TRUNC | O_APPEND;
|
|
if (((flags & O_ACCMODE) == O_RDONLY) && !(flags & commonFlagMask)) {
|
|
fsMode = "r";
|
|
} else if (((flags & O_ACCMODE) == O_RDWR) && !(flags & commonFlagMask)) {
|
|
fsMode = "r+";
|
|
} else if (((flags & O_ACCMODE) == O_WRONLY) && ((flags & commonFlagMask) == (O_CREAT | O_TRUNC))) {
|
|
fsMode = "w";
|
|
} else if (((flags & O_ACCMODE) == O_RDWR) && ((flags & commonFlagMask) == (O_CREAT | O_TRUNC))) {
|
|
fsMode = "w+";
|
|
} else if (((flags & O_ACCMODE) == O_WRONLY) && ((flags & commonFlagMask) == (O_CREAT | O_APPEND))) {
|
|
fsMode = "a";
|
|
} else if (((flags & O_ACCMODE) == O_RDWR) && ((flags & commonFlagMask) == (O_CREAT | O_APPEND))) {
|
|
fsMode = "a+";
|
|
} else {
|
|
r->_errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
char *fixedPath = __fsa_fixpath(r, path);
|
|
if (!fixedPath) {
|
|
r->_errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
// Open the file
|
|
FSOpenFileFlags openFlags = (mode & O_UNENCRYPTED) ? FS_OPEN_FLAG_ENCRYPTED : FS_OPEN_FLAG_NONE;
|
|
|
|
auto *deviceData = (FSADeviceData *) r->deviceData;
|
|
|
|
std::lock_guard<FastLockWrapper> lock(deviceData->mutex);
|
|
|
|
FSMode translatedMode = __fsa_translate_permission_mode(mode);
|
|
|
|
uint32_t preAllocSize = 0;
|
|
|
|
status = FSAOpenFileEx(deviceData->clientHandle, fixedPath, fsMode, translatedMode, openFlags, preAllocSize, &fd);
|
|
if (status < 0) {
|
|
DEBUG_FUNCTION_LINE_ERR("FSAOpenFileEx(0x%08X, %s, %s, 0x%X, 0x%08X, 0x%08X, 0x%08X) failed: %s", deviceData->clientHandle, fixedPath, fsMode, translatedMode, openFlags, preAllocSize, &fd, FSAGetStatusStr(status));
|
|
r->_errno = __fsa_translate_error(status);
|
|
free(fixedPath);
|
|
return -1;
|
|
}
|
|
|
|
file = (__fsa_file_t *) fileStruct;
|
|
file->fd = fd;
|
|
file->flags = (flags & (O_ACCMODE | O_APPEND | O_SYNC));
|
|
strncpy(file->path, fixedPath, FS_MAX_PATH);
|
|
free(fixedPath);
|
|
|
|
if (flags & O_APPEND) {
|
|
status = FSAGetPosFile(deviceData->clientHandle, fd, &file->offset);
|
|
if (status < 0) {
|
|
DEBUG_FUNCTION_LINE_ERR("FSAGetPosFile(0x%08X, 0x%08X, 0x%08X) failed: %s", deviceData->clientHandle, fd, &file->offset, FSAGetStatusStr(status));
|
|
r->_errno = __fsa_translate_error(status);
|
|
if (FSACloseFile(deviceData->clientHandle, fd) < 0) {
|
|
DEBUG_FUNCTION_LINE_ERR("FSACloseFile(0x%08X, 0x%08X) failed: %s", deviceData->clientHandle, fd, FSAGetStatusStr(status));
|
|
}
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
} |