/*
* Set file attributes.
*/
int
vboxfs_setattr(char *path, struct sffs_attr *attr)
{
vboxfs_objinfo_t info;
vboxfs_handle_t h;
int r;
/*
* Setting the size of a path cannot be combined with other attribute
* modifications, because we cannot fail atomically.
*/
if (attr->a_mask & SFFS_ATTR_SIZE) {
assert(attr->a_mask == SFFS_ATTR_SIZE);
return set_size(path, attr->a_size);
}
/*
* By passing a pointer to an object information structure, we open the
* file for attribute manipulation. Note that this call will open the
* file as a regular file. This works on directories as well.
*/
if ((r = vboxfs_open_file(path, O_WRONLY, 0, &h, &info)) != OK)
return r;
info.attr.add = VBOXFS_OBJATTR_ADD_NONE;
/* Update the file's permissions if requested. */
if (attr->a_mask & SFFS_ATTR_MODE)
info.attr.mode =
VBOXFS_SET_MODE(info.attr.mode & S_IFMT, attr->a_mode);
/*
* Update various file times if requested. Not all changes may
* be honered. A zero time indicates no change.
*/
info.atime = (attr->a_mask & SFFS_ATTR_ATIME) ?
set_time(&attr->a_atime) : 0;
info.mtime = (attr->a_mask & SFFS_ATTR_MTIME) ?
set_time(&attr->a_mtime) : 0;
info.ctime = (attr->a_mask & SFFS_ATTR_CTIME) ?
set_time(&attr->a_ctime) : 0;
info.crtime = (attr->a_mask & SFFS_ATTR_CRTIME) ?
set_time(&attr->a_crtime) : 0;
r = vboxfs_getset_info(h, VBOXFS_INFO_SET | VBOXFS_INFO_FILE, &info,
sizeof(info));
vboxfs_close_file(h);
return r;
}
/*
* Query volume information.
*/
int
vboxfs_query_vol(const char *path, vboxfs_volinfo_t *volinfo)
{
vboxfs_handle_t h;
int r;
if ((r = vboxfs_open_file(path, O_RDONLY, 0, &h, NULL)) != OK)
return r;
r = vboxfs_getset_info(h, VBOXFS_INFO_GET | VBOXFS_INFO_VOLUME,
volinfo, sizeof(*volinfo));
vboxfs_close_file(h);
return r;
}
/*
* Create a directory.
*/
int
vboxfs_mkdir(char *path, int mode)
{
vboxfs_handle_t h;
int r;
assert(S_ISDIR(mode));
if ((r = vboxfs_open_file(path, O_CREAT | O_EXCL | O_WRONLY, mode, &h,
NULL)) != OK)
return r;
vboxfs_close_file(h);
return r;
}
/*
* Set file size.
*/
static int
set_size(char *path, u64_t size)
{
vboxfs_objinfo_t info;
vboxfs_handle_t h;
int r;
if ((r = vboxfs_open_file(path, O_WRONLY, S_IFREG, &h, NULL)) != OK)
return r;
memset(&info, 0, sizeof(info));
info.size = size;
r = vboxfs_getset_info(h, VBOXFS_INFO_SET | VBOXFS_INFO_SIZE, &info,
sizeof(info));
vboxfs_close_file(h);
return r;
}
