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libutils/source/fs/sd_fat_devoptab.cpp

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/***************************************************************************
* Copyright (C) 2015
* by Dimok
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any
* damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any
* purpose, including commercial applications, and to alter it and
* redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you
* must not claim that you wrote the original software. If you use
* this software in a product, an acknowledgment in the product
* documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and
* must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
***************************************************************************/
#include <errno.h>
#include <sys/statvfs.h>
#include <sys/dirent.h>
#include <string.h>
#include <malloc.h>
#include <fcntl.h>
#include <stdio.h>
#include <dynamic_libs/fs_functions.h>
#include <dynamic_libs/os_functions.h>
#include "disc_io.h"
#include "FSOSUtils.h"
#include "sd_fat_devoptab.h"
#include "utils/StringTools.h"
#include "utils/logger.h"
#define FS_ALIGNMENT 0x40
#define FS_ALIGN(x) (((x) + FS_ALIGNMENT - 1) & ~(FS_ALIGNMENT - 1))
typedef struct _sd_fat_private_t {
char *mount_path;
void *pClient;
void *pCmd;
void *pMutex;
} sd_fat_private_t;
typedef struct _sd_fat_file_state_t {
sd_fat_private_t *dev;
int fd; /* File descriptor */
int flags; /* Opening flags */
bool read; /* True if allowed to read from file */
bool write; /* True if allowed to write to file */
bool append; /* True if allowed to append to file */
u64 pos; /* Current position within the file (in bytes) */
u64 len; /* Total length of the file (in bytes) */
struct _sd_fat_file_state_t *prevOpenFile; /* The previous entry in a double-linked FILO list of open files */
struct _sd_fat_file_state_t *nextOpenFile; /* The next entry in a double-linked FILO list of open files */
} sd_fat_file_state_t;
typedef struct _sd_fat_dir_entry_t {
sd_fat_private_t *dev;
int dirHandle;
} sd_fat_dir_entry_t;
static sd_fat_private_t *sd_fat_get_device_data(const char *path)
{
const devoptab_t *devoptab = NULL;
char name[128] = {0};
int i;
// Get the device name from the path
strncpy(name, path, 127);
strtok(name, ":/");
// Search the devoptab table for the specified device name
// NOTE: We do this manually due to a 'bug' in GetDeviceOpTab
// which ignores names with suffixes and causes names
// like "ntfs" and "ntfs1" to be seen as equals
for (i = 3; i < STD_MAX; i++) {
devoptab = devoptab_list[i];
if (devoptab && devoptab->name) {
if (strcmp(name, devoptab->name) == 0) {
return (sd_fat_private_t *)devoptab->deviceData;
}
}
}
return NULL;
}
static char *sd_fat_real_path (const char *path, sd_fat_private_t *dev)
{
// Sanity check
if (!path)
return NULL;
// Move the path pointer to the start of the actual path
if (strchr(path, ':') != NULL) {
path = strchr(path, ':') + 1;
}
int mount_len = strlen(dev->mount_path);
char *new_name = (char*)malloc(mount_len + strlen(path) + 1);
if(new_name) {
strcpy(new_name, dev->mount_path);
strcpy(new_name + mount_len, path);
return new_name;
}
return new_name;
}
static int sd_fat_open_r (struct _reent *r, void *fileStruct, const char *path, int flags, int mode)
{
sd_fat_private_t *dev = sd_fat_get_device_data(path);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fileStruct;
file->dev = dev;
// Determine which mode the file is opened for
file->flags = flags;
const char *mode_str;
if ((flags & 0x03) == O_RDONLY) {
file->read = true;
file->write = false;
file->append = false;
mode_str = "r";
} else if ((flags & 0x03) == O_WRONLY) {
file->read = false;
file->write = true;
file->append = (flags & O_APPEND);
mode_str = file->append ? "a" : "w";
} else if ((flags & 0x03) == O_RDWR) {
file->read = true;
file->write = true;
file->append = (flags & O_APPEND);
mode_str = file->append ? "a+" : "r+";
} else {
r->_errno = EACCES;
return -1;
}
s32 fd = -1;
OSLockMutex(dev->pMutex);
char *real_path = sd_fat_real_path(path, dev);
if(!path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
int result = FSOpenFile(dev->pClient, dev->pCmd, real_path, mode_str, &fd, -1);
free(real_path);
if(result == 0)
{
FSStat stats;
result = FSGetStatFile(dev->pClient, dev->pCmd, fd, &stats, -1);
if(result != 0) {
FSCloseFile(dev->pClient, dev->pCmd, fd, -1);
r->_errno = result;
OSUnlockMutex(dev->pMutex);
return -1;
}
file->fd = fd;
file->pos = 0;
file->len = stats.size;
OSUnlockMutex(dev->pMutex);
return (int)file;
}
r->_errno = result;
OSUnlockMutex(dev->pMutex);
return -1;
}
static int sd_fat_close_r (struct _reent *r, void *fd)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(file->dev->pMutex);
int result = FSCloseFile(file->dev->pClient, file->dev->pCmd, file->fd, -1);
OSUnlockMutex(file->dev->pMutex);
if(result < 0)
{
r->_errno = result;
return -1;
}
return 0;
}
static off_t sd_fat_seek_r (struct _reent *r, void* fd, off_t pos, int dir)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return 0;
}
OSLockMutex(file->dev->pMutex);
switch(dir)
{
case SEEK_SET:
file->pos = pos;
break;
case SEEK_CUR:
file->pos += pos;
break;
case SEEK_END:
file->pos = file->len + pos;
break;
default:
r->_errno = EINVAL;
return -1;
}
int result = FSSetPosFile(file->dev->pClient, file->dev->pCmd, file->fd, file->pos, -1);
OSUnlockMutex(file->dev->pMutex);
if(result == 0)
{
return file->pos;
}
return result;
}
static ssize_t sd_fat_write_r (struct _reent *r, void *fd, const char *ptr, size_t len)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return 0;
}
if(!file->write)
{
r->_errno = EACCES;
return 0;
}
OSLockMutex(file->dev->pMutex);
size_t len_aligned = FS_ALIGN(len);
if(len_aligned > 0x4000)
len_aligned = 0x4000;
unsigned char *tmpBuf = (unsigned char *)memalign(FS_ALIGNMENT, len_aligned);
if(!tmpBuf) {
r->_errno = ENOMEM;
OSUnlockMutex(file->dev->pMutex);
return 0;
}
size_t done = 0;
while(done < len)
{
size_t write_size = (len_aligned < (len - done)) ? len_aligned : (len - done);
memcpy(tmpBuf, ptr + done, write_size);
int result = FSWriteFile(file->dev->pClient, file->dev->pCmd, tmpBuf, 0x01, write_size, file->fd, 0, -1);
if(result < 0)
{
r->_errno = result;
break;
}
else if(result == 0)
{
if(write_size > 0)
done = 0;
break;
}
else
{
done += result;
file->pos += result;
}
}
free(tmpBuf);
OSUnlockMutex(file->dev->pMutex);
return done;
}
static ssize_t sd_fat_read_r (struct _reent *r, void* fd, char *ptr, size_t len)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return 0;
}
if(!file->read)
{
r->_errno = EACCES;
return 0;
}
OSLockMutex(file->dev->pMutex);
size_t len_aligned = FS_ALIGN(len);
if(len_aligned > 0x4000)
len_aligned = 0x4000;
unsigned char *tmpBuf = (unsigned char *)memalign(FS_ALIGNMENT, len_aligned);
if(!tmpBuf) {
r->_errno = ENOMEM;
OSUnlockMutex(file->dev->pMutex);
return 0;
}
size_t done = 0;
while(done < len)
{
size_t read_size = (len_aligned < (len - done)) ? len_aligned : (len - done);
int result = FSReadFile(file->dev->pClient, file->dev->pCmd, tmpBuf, 0x01, read_size, file->fd, 0, -1);
if(result < 0)
{
r->_errno = result;
done = 0;
break;
}
else if(result == 0)
{
//! TODO: error on read_size > 0
break;
}
else
{
memcpy(ptr + done, tmpBuf, read_size);
done += result;
file->pos += result;
}
}
free(tmpBuf);
OSUnlockMutex(file->dev->pMutex);
return done;
}
static int sd_fat_fstat_r (struct _reent *r, void* fd, struct stat *st)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(file->dev->pMutex);
// Zero out the stat buffer
memset(st, 0, sizeof(struct stat));
FSStat stats;
int result = FSGetStatFile(file->dev->pClient, file->dev->pCmd, file->fd, &stats, -1);
if(result != 0) {
r->_errno = result;
OSUnlockMutex(file->dev->pMutex);
return -1;
}
st->st_mode = S_IFREG;
st->st_size = stats.size;
st->st_blocks = (stats.size + 511) >> 9;
st->st_nlink = 1;
// Fill in the generic entry stats
st->st_dev = stats.ent_id;
st->st_uid = stats.owner_id;
st->st_gid = stats.group_id;
st->st_ino = stats.ent_id;
st->st_atime = stats.mtime;
st->st_ctime = stats.ctime;
st->st_mtime = stats.mtime;
OSUnlockMutex(file->dev->pMutex);
return 0;
}
static int sd_fat_ftruncate_r (struct _reent *r, void* fd, off_t len)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(file->dev->pMutex);
int result = FSTruncateFile(file->dev->pClient, file->dev->pCmd, file->fd, -1);
OSUnlockMutex(file->dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_fsync_r (struct _reent *r, void* fd)
{
sd_fat_file_state_t *file = (sd_fat_file_state_t *)fd;
if(!file->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(file->dev->pMutex);
int result = FSFlushFile(file->dev->pClient, file->dev->pCmd, file->fd, -1);
OSUnlockMutex(file->dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_stat_r (struct _reent *r, const char *path, struct stat *st)
{
sd_fat_private_t *dev = sd_fat_get_device_data(path);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
// Zero out the stat buffer
memset(st, 0, sizeof(struct stat));
char *real_path = sd_fat_real_path(path, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
FSStat stats;
int result = FSGetStat(dev->pClient, dev->pCmd, real_path, &stats, -1);
free(real_path);
if(result < 0) {
r->_errno = result;
OSUnlockMutex(dev->pMutex);
return -1;
}
// mark root also as directory
st->st_mode = ((stats.flag & 0x80000000) || (strlen(dev->mount_path) + 1 == strlen(real_path)))? S_IFDIR : S_IFREG;
st->st_nlink = 1;
st->st_size = stats.size;
st->st_blocks = (stats.size + 511) >> 9;
// Fill in the generic entry stats
st->st_dev = stats.ent_id;
st->st_uid = stats.owner_id;
st->st_gid = stats.group_id;
st->st_ino = stats.ent_id;
st->st_atime = stats.mtime;
st->st_ctime = stats.ctime;
st->st_mtime = stats.mtime;
OSUnlockMutex(dev->pMutex);
return 0;
}
static int sd_fat_link_r (struct _reent *r, const char *existing, const char *newLink)
{
r->_errno = ENOTSUP;
return -1;
}
static int sd_fat_unlink_r (struct _reent *r, const char *name)
{
sd_fat_private_t *dev = sd_fat_get_device_data(name);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
char *real_path = sd_fat_real_path(name, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
int result = FSRemove(dev->pClient, dev->pCmd, real_path, -1);
free(real_path);
OSUnlockMutex(dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_chdir_r (struct _reent *r, const char *name)
{
sd_fat_private_t *dev = sd_fat_get_device_data(name);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
char *real_path = sd_fat_real_path(name, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
int result = FSChangeDir(dev->pClient, dev->pCmd, real_path, -1);
free(real_path);
OSUnlockMutex(dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_rename_r (struct _reent *r, const char *oldName, const char *newName)
{
sd_fat_private_t *dev = sd_fat_get_device_data(oldName);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
char *real_oldpath = sd_fat_real_path(oldName, dev);
if(!real_oldpath) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
char *real_newpath = sd_fat_real_path(newName, dev);
if(!real_newpath) {
r->_errno = ENOMEM;
free(real_oldpath);
OSUnlockMutex(dev->pMutex);
return -1;
}
int result = FSRename(dev->pClient, dev->pCmd, real_oldpath, real_newpath, -1);
free(real_oldpath);
free(real_newpath);
OSUnlockMutex(dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_mkdir_r (struct _reent *r, const char *path, int mode)
{
sd_fat_private_t *dev = sd_fat_get_device_data(path);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
char *real_path = sd_fat_real_path(path, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
int result = FSMakeDir(dev->pClient, dev->pCmd, real_path, -1);
free(real_path);
OSUnlockMutex(dev->pMutex);
if(result < 0) {
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_statvfs_r (struct _reent *r, const char *path, struct statvfs *buf)
{
sd_fat_private_t *dev = sd_fat_get_device_data(path);
if(!dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dev->pMutex);
// Zero out the stat buffer
memset(buf, 0, sizeof(struct statvfs));
char *real_path = sd_fat_real_path(path, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return -1;
}
u64 size;
int result = FSGetFreeSpaceSize(dev->pClient, dev->pCmd, real_path, &size, -1);
free(real_path);
if(result < 0) {
r->_errno = result;
OSUnlockMutex(dev->pMutex);
return -1;
}
// File system block size
buf->f_bsize = 512;
// Fundamental file system block size
buf->f_frsize = 512;
// Total number of blocks on file system in units of f_frsize
buf->f_blocks = size >> 9; // this is unknown
// Free blocks available for all and for non-privileged processes
buf->f_bfree = buf->f_bavail = size >> 9;
// Number of inodes at this point in time
buf->f_files = 0xffffffff;
// Free inodes available for all and for non-privileged processes
buf->f_ffree = 0xffffffff;
// File system id
buf->f_fsid = (int)dev;
// Bit mask of f_flag values.
buf->f_flag = 0;
// Maximum length of filenames
buf->f_namemax = 255;
OSUnlockMutex(dev->pMutex);
return 0;
}
static DIR_ITER *sd_fat_diropen_r (struct _reent *r, DIR_ITER *dirState, const char *path)
{
sd_fat_private_t *dev = sd_fat_get_device_data(path);
if(!dev) {
r->_errno = ENODEV;
return NULL;
}
sd_fat_dir_entry_t *dirIter = (sd_fat_dir_entry_t *)dirState->dirStruct;
OSLockMutex(dev->pMutex);
char *real_path = sd_fat_real_path(path, dev);
if(!real_path) {
r->_errno = ENOMEM;
OSUnlockMutex(dev->pMutex);
return NULL;
}
s32 dirHandle;
int result = FSOpenDir(dev->pClient, dev->pCmd, real_path, &dirHandle, -1);
free(real_path);
OSUnlockMutex(dev->pMutex);
if(result < 0)
{
r->_errno = result;
return NULL;
}
dirIter->dev = dev;
dirIter->dirHandle = dirHandle;
return dirState;
}
static int sd_fat_dirclose_r (struct _reent *r, DIR_ITER *dirState)
{
sd_fat_dir_entry_t *dirIter = (sd_fat_dir_entry_t *)dirState->dirStruct;
if(!dirIter->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dirIter->dev->pMutex);
int result = FSCloseDir(dirIter->dev->pClient, dirIter->dev->pCmd, dirIter->dirHandle, -1);
OSUnlockMutex(dirIter->dev->pMutex);
if(result < 0)
{
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_dirreset_r (struct _reent *r, DIR_ITER *dirState)
{
sd_fat_dir_entry_t *dirIter = (sd_fat_dir_entry_t *)dirState->dirStruct;
if(!dirIter->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dirIter->dev->pMutex);
int result = FSRewindDir(dirIter->dev->pClient, dirIter->dev->pCmd, dirIter->dirHandle, -1);
OSUnlockMutex(dirIter->dev->pMutex);
if(result < 0)
{
r->_errno = result;
return -1;
}
return 0;
}
static int sd_fat_dirnext_r (struct _reent *r, DIR_ITER *dirState, char *filename, struct stat *st)
{
sd_fat_dir_entry_t *dirIter = (sd_fat_dir_entry_t *)dirState->dirStruct;
if(!dirIter->dev) {
r->_errno = ENODEV;
return -1;
}
OSLockMutex(dirIter->dev->pMutex);
FSDirEntry * dir_entry = (FSDirEntry *)malloc(sizeof(FSDirEntry));
int result = FSReadDir(dirIter->dev->pClient, dirIter->dev->pCmd, dirIter->dirHandle, dir_entry, -1);
if(result < 0)
{
free(dir_entry);
r->_errno = result;
OSUnlockMutex(dirIter->dev->pMutex);
return -1;
}
// Fetch the current entry
strcpy(filename, dir_entry->name);
if(st)
{
memset(st, 0, sizeof(struct stat));
st->st_mode = (dir_entry->stat.flag & 0x80000000) ? S_IFDIR : S_IFREG;
st->st_nlink = 1;
st->st_size = dir_entry->stat.size;
st->st_blocks = (dir_entry->stat.size + 511) >> 9;
st->st_dev = dir_entry->stat.ent_id;
st->st_uid = dir_entry->stat.owner_id;
st->st_gid = dir_entry->stat.group_id;
st->st_ino = dir_entry->stat.ent_id;
st->st_atime = dir_entry->stat.mtime;
st->st_ctime = dir_entry->stat.ctime;
st->st_mtime = dir_entry->stat.mtime;
}
free(dir_entry);
OSUnlockMutex(dirIter->dev->pMutex);
return 0;
}
// SD device driver devoptab
static const devoptab_t devops_sd_fat = {
NULL, /* Device name */
sizeof (sd_fat_file_state_t),
sd_fat_open_r,
sd_fat_close_r,
sd_fat_write_r,
sd_fat_read_r,
sd_fat_seek_r,
sd_fat_fstat_r,
sd_fat_stat_r,
sd_fat_link_r,
sd_fat_unlink_r,
sd_fat_chdir_r,
sd_fat_rename_r,
sd_fat_mkdir_r,
sizeof (sd_fat_dir_entry_t),
sd_fat_diropen_r,
sd_fat_dirreset_r,
sd_fat_dirnext_r,
sd_fat_dirclose_r,
sd_fat_statvfs_r,
sd_fat_ftruncate_r,
sd_fat_fsync_r,
NULL, /* Device data */
NULL, /* sd_fat_chmod_r */
NULL, /* sd_fat_fchmod_r */
NULL /* sd_fat_rmdir_r */
};
static int sd_fat_add_device (const char *name, const char *mount_path, void *pClient, void *pCmd)
{
devoptab_t *dev = NULL;
char *devname = NULL;
char *devpath = NULL;
int i;
// Sanity check
if (!name) {
errno = EINVAL;
return -1;
}
// Allocate a devoptab for this device
dev = (devoptab_t *) malloc(sizeof(devoptab_t) + strlen(name) + 1);
if (!dev) {
errno = ENOMEM;
return -1;
}
// Use the space allocated at the end of the devoptab for storing the device name
devname = (char*)(dev + 1);
strcpy(devname, name);
// create private data
int mount_path_len = 0;
if(mount_path != NULL){
mount_path_len = strlen(mount_path);
}
sd_fat_private_t *priv = (sd_fat_private_t *)malloc(sizeof(sd_fat_private_t) + mount_path_len + 1);
if(!priv) {
free(dev);
errno = ENOMEM;
return -1;
}
devpath = (char*)(priv+1);
if(mount_path != NULL){
strcpy(devpath, mount_path);
}
// setup private data
priv->mount_path = devpath;
priv->pClient = pClient;
priv->pCmd = pCmd;
priv->pMutex = malloc(OS_MUTEX_SIZE);
if(!priv->pMutex) {
free(dev);
free(priv);
errno = ENOMEM;
return -1;
}
OSInitMutex(priv->pMutex);
// Setup the devoptab
memcpy(dev, &devops_sd_fat, sizeof(devoptab_t));
dev->name = devname;
dev->deviceData = priv;
// Add the device to the devoptab table (if there is a free slot)
for (i = 3; i < STD_MAX; i++) {
if (devoptab_list[i] == devoptab_list[0]) {
devoptab_list[i] = dev;
return 0;
}
}
// failure, free all memory
free(priv);
free(dev);
// If we reach here then there are no free slots in the devoptab table for this device
errno = EADDRNOTAVAIL;
return -1;
}
/*
Because of some weird reason unmounting doesn't work properly.
This fix if mainly when a usb drive is connected.
It resets the devoptab_list, otherwise mounting again would throw an exception (in strlen).
No memory is free'd here. Maybe a problem?!?!?
*/
void deleteDevTabsNames(){
const devoptab_t * devoptab = NULL;
u32 last_entry = (u32) devoptab_list[STD_MAX-1];
for (int i = 3; i < STD_MAX; i++) {
devoptab = devoptab_list[i];
if (devoptab) {
//log_printf("check devotab %d %08X\n",i,devoptab);
if((u32) devoptab != last_entry){
devoptab_list[i] = (const devoptab_t *)last_entry;
//log_printf("Removed devotab %d %08X %08X %08X\n",i,devoptab,devoptab->name,devoptab->deviceData);
}
}
}
}
static int sd_fat_remove_device (const char *path, void **pClient, void **pCmd, char **mountPath)
{
const devoptab_t *devoptab = NULL;
char name[128] = {0};
int i;
// Get the device name from the path
strncpy(name, path, 127);
strtok(name, ":/");
// Find and remove the specified device from the devoptab table
// NOTE: We do this manually due to a 'bug' in RemoveDevice
// which ignores names with suffixes and causes names
// like "ntfs" and "ntfs1" to be seen as equals
for (i = 3; i < STD_MAX; i++) {
devoptab = devoptab_list[i];
if (devoptab && devoptab->name) {
if (strcmp(name, devoptab->name) == 0) {
devoptab_list[i] = devoptab_list[0];
if(devoptab->deviceData)
{
sd_fat_private_t *priv = (sd_fat_private_t *)devoptab->deviceData;
if(pClient != NULL) *pClient = priv->pClient;
if(pCmd != NULL) *pCmd = priv->pCmd;
if(mountPath != NULL){
*mountPath = (char*) malloc(strlen(priv->mount_path)+1);
if(*mountPath)
strcpy(*mountPath, priv->mount_path);
}
if(priv->pMutex)
free(priv->pMutex);
free(devoptab->deviceData);
}
free((devoptab_t*)devoptab);
return 0;
}
}
}
return -1;
}
s32 mount_sd_fat(const char *path){
int result = -1;
// get command and client
void* pClient = malloc(FS_CLIENT_SIZE);
void* pCmd = malloc(FS_CMD_BLOCK_SIZE);
if(!pClient || !pCmd) {
// just in case free if not 0
if(pClient)
free(pClient);
if(pCmd)
free(pCmd);
return -2;
}
FSInit();
FSInitCmdBlock(pCmd);
FSAddClientEx(pClient, 0, -1);
char *mountPath = NULL;
if(FSOSUtils::MountFS(pClient, pCmd, &mountPath) == 0) {
result = sd_fat_add_device(path, mountPath, pClient, pCmd);
free(mountPath);
}
return result;
}
s32 unmount_sd_fat(const char *path){
void *pClient = 0;
void *pCmd = 0;
char *mountPath = 0;
int result = sd_fat_remove_device(path, &pClient, &pCmd, &mountPath);
if(result == 0)
{
FSOSUtils::UmountFS(pClient, pCmd, mountPath);
FSDelClient(pClient);
free(pClient);
free(pCmd);
free(mountPath);
//FSShutdown();
}
return result;
}
s32 mount_fake(){
return sd_fat_add_device("fake", NULL, NULL, NULL);
}
s32 unmount_fake(){
return sd_fat_remove_device ("fake", NULL,NULL,NULL);
}
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