bool ntfsSetVolumeName (const char *name, const char *volumeName)
{
ntfs_vd *vd = NULL;
ntfs_attr *na = NULL;
ntfschar *ulabel = NULL;
int ulabel_len;
// Sanity check
if (!name) {
errno = EINVAL;
return false;
}
// Get the devices volume descriptor
vd = ntfsGetVolume(name);
if (!vd) {
errno = ENODEV;
return false;
}
// Lock
ntfsLock(vd);
// Convert the new volume name to unicode
ulabel_len = ntfsLocalToUnicode(volumeName, &ulabel) * sizeof(ntfschar);
if (ulabel_len < 0) {
ntfsUnlock(vd);
errno = EINVAL;
return false;
}
// Check if the volume name attribute exists
na = ntfs_attr_open(vd->vol->vol_ni, AT_VOLUME_NAME, NULL, 0);
if (na) {
// It does, resize it to match the length of the new volume name
if (ntfs_attr_truncate(na, ulabel_len)) {
ntfs_free(ulabel);
ntfsUnlock(vd);
return false;
}
// Write the new volume name
if (ntfs_attr_pwrite(na, 0, ulabel_len, ulabel) != ulabel_len) {
ntfs_free(ulabel);
ntfsUnlock(vd);
return false;
}
} else {
// It doesn't, create it now
if (ntfs_attr_add(vd->vol->vol_ni, AT_VOLUME_NAME, NULL, 0, (u8*)ulabel, ulabel_len)) {
ntfs_free(ulabel);
ntfsUnlock(vd);
return false;
}
}
// Reset the volumes name cache (as it has now been changed)
vd->name[0] = '\0';
// Close the volume name attribute
if (na)
ntfs_attr_close(na);
// Sync the volume node
if (ntfs_inode_sync(vd->vol->vol_ni)) {
ntfs_free(ulabel);
ntfsUnlock(vd);
return false;
}
// Clean up
ntfs_free(ulabel);
// Unlock
ntfsUnlock(vd);
return true;
}
int ntfsLink (ntfs_vd *vd, const char *old_path, const char *new_path)
{
ntfs_inode *dir_ni = NULL, *ni = NULL;
char *dir = NULL;
char *name = NULL;
ntfschar *uname = NULL;
int uname_len;
int res = 0;
// Sanity check
if (!vd) {
errno = ENODEV;
return -1;
}
// You cannot link between devices
if(vd != ntfsGetVolume(new_path)) {
errno = EXDEV;
return -1;
}
// Get the actual paths of the entry
old_path = ntfsRealPath(old_path);
new_path = ntfsRealPath(new_path);
if (!old_path || !new_path) {
errno = EINVAL;
return -1;
}
// Lock
ntfsLock(vd);
// Get the unicode name for the entry and find its parent directory
// TODO: This looks horrible, clean it up
dir = strdup(new_path);
if (!dir) {
errno = EINVAL;
goto cleanup;
}
name = strrchr(dir, '/');
if (name)
name++;
else
name = dir;
uname_len = ntfsLocalToUnicode(name, &uname);
if (uname_len < 0) {
errno = EINVAL;
goto cleanup;
}
*name = 0;
// Find the entry
ni = ntfsOpenEntry(vd, old_path);
if (!ni) {
errno = ENOENT;
res = -1;
goto cleanup;
}
// Open the entries new parent directory
dir_ni = ntfsOpenEntry(vd, dir);
if (!dir_ni) {
errno = ENOENT;
res = -1;
goto cleanup;
}
// Link the entry to its new parent
if (ntfs_link(ni, dir_ni, uname, uname_len)) {
res = -1;
goto cleanup;
}
// Update entry times
ntfsUpdateTimes(vd, dir_ni, NTFS_UPDATE_MCTIME);
// Sync the entry to disc
ntfsSync(vd, ni);
cleanup:
if(dir_ni)
ntfsCloseEntry(vd, dir_ni);
if(ni)
ntfsCloseEntry(vd, ni);
// use free because the value was not allocated with ntfs_alloc
if(uname)
free(uname);
if(dir)
ntfs_free(dir);
// Unlock
ntfsUnlock(vd);
return res;
}
int ntfsUnlink (ntfs_vd *vd, const char *path)
{
ntfs_inode *dir_ni = NULL, *ni = NULL;
char *dir = NULL;
char *name = NULL;
ntfschar *uname = NULL;
int uname_len;
int res = 0;
// Sanity check
if (!vd) {
errno = ENODEV;
return -1;
}
// Get the actual path of the entry
path = ntfsRealPath(path);
if (!path) {
errno = EINVAL;
return -1;
}
// Lock
ntfsLock(vd);
// Get the unicode name for the entry and find its parent directory
// TODO: This looks horrible
dir = strdup(path);
if (!dir) {
errno = EINVAL;
goto cleanup;
}
name = strrchr(dir, '/');
if (name)
name++;
else
name = dir;
uname_len = ntfsLocalToUnicode(name, &uname);
if (uname_len < 0) {
errno = EINVAL;
goto cleanup;
}
name = strrchr(dir, '/');
if(name)
{
name++;
name[0] = 0;
}
// Find the entry
ni = ntfsOpenEntry(vd, path);
if (!ni) {
errno = ENOENT;
res = -1;
goto cleanup;
}
// Open the entries parent directory
dir_ni = ntfsOpenEntry(vd, dir);
if (!dir_ni) {
errno = ENOENT;
res = -1;
goto cleanup;
}
// Unlink the entry from its parent
if (ntfs_delete(vd->vol, path, ni, dir_ni, uname, uname_len)) {
res = -1;
}
// Force the underlying device to sync
ntfs_device_sync(vd->dev);
// ntfs_delete() ALWAYS closes ni and dir_ni; so no need for us to anymore
dir_ni = ni = NULL;
cleanup:
if(dir_ni)
ntfsCloseEntry(vd, dir_ni);
if(ni)
ntfsCloseEntry(vd, ni);
// use free because the value was not allocated with ntfs_alloc
if(uname)
free(uname);
if(dir)
ntfs_free(dir);
// Unlock
ntfsUnlock(vd);
return 0;
}
ntfs_inode *ntfsCreate (ntfs_vd *vd, const char *path, mode_t type, const char *target)
{
ntfs_inode *dir_ni = NULL, *ni = NULL;
char *dir = NULL;
char *name = NULL;
ntfschar *uname = NULL, *utarget = NULL;
int uname_len, utarget_len;
// Sanity check
if (!vd) {
errno = ENODEV;
return NULL;
}
// You cannot link between devices
if(target) {
if(vd != ntfsGetVolume(target)) {
errno = EXDEV;
return NULL;
}
}
// Get the actual paths of the entry
path = ntfsRealPath(path);
target = ntfsRealPath(target);
if (!path) {
errno = EINVAL;
return NULL;
}
// Lock
ntfsLock(vd);
// Get the unicode name for the entry and find its parent directory
// TODO: This looks horrible, clean it up
dir = strdup(path);
if (!dir) {
errno = EINVAL;
goto cleanup;
}
name = strrchr(dir, '/');
if (name)
name++;
else
name = dir;
uname_len = ntfsLocalToUnicode(name, &uname);
if (uname_len < 0) {
errno = EINVAL;
goto cleanup;
}
name = strrchr(dir, '/');
if(name)
{
name++;
name[0] = 0;
}
// Open the entries parent directory
dir_ni = ntfsOpenEntry(vd, dir);
if (!dir_ni) {
goto cleanup;
}
// Create the entry
switch (type) {
// Symbolic link
case S_IFLNK:
if (!target) {
errno = EINVAL;
goto cleanup;
}
utarget_len = ntfsLocalToUnicode(target, &utarget);
if (utarget_len < 0) {
errno = EINVAL;
goto cleanup;
}
ni = ntfs_create_symlink(dir_ni, 0, uname, uname_len, utarget, utarget_len);
break;
// Directory or file
case S_IFDIR:
case S_IFREG:
ni = ntfs_create(dir_ni, 0, uname, uname_len, type);
break;
}
// If the entry was created
if (ni) {
// Mark the entry for archiving
ni->flags |= FILE_ATTR_ARCHIVE;
// Mark the entry as dirty
NInoSetDirty(ni);
// Sync the entry to disc
ntfsSync(vd, ni);
// Update parent directories times
ntfsUpdateTimes(vd, dir_ni, NTFS_UPDATE_MCTIME);
}
cleanup:
if(dir_ni)
ntfsCloseEntry(vd, dir_ni);
// use free because the value was not allocated with ntfs_alloc
if(utarget)
free(utarget);
if(uname)
free(uname);
if(dir)
ntfs_free(dir);
// Unlock
ntfsUnlock(vd);
return ni;
}
