static int tmpfs_dump(struct mount_info *pm)
{
int ret = -1;
char tmpfs_path[PATH_MAX];
int fd, fd_img = -1;
DIR *fdir = NULL;
fdir = open_mountpoint(pm);
if (fdir == NULL)
return -1;
fd = dirfd(fdir);
if (fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) & ~FD_CLOEXEC) == -1) {
pr_perror("Can not drop FD_CLOEXEC");
goto out;
}
fd_img = open_image(CR_FD_TMPFS, O_DUMP, pm->mnt_id);
if (fd_img < 0)
goto out;
snprintf(tmpfs_path, sizeof(tmpfs_path),
"/proc/self/fd/%d", fd);
ret = cr_system(-1, fd_img, -1, "tar", (char *[])
{ "tar", "--create",
"--gzip",
"--check-links",
"--preserve-permissions",
"--sparse",
"--numeric-owner",
"--directory", tmpfs_path, ".", NULL });
/* Load a file, open a directory or run an application. Or, if 'edit' is set:
* edit a file, open an application, follow a symlink or mount a device.
*
* filer_window is the window to use for displaying a directory.
* NULL will always use a new directory when needed.
* src_window is the window to copy options from, or NULL.
*
* Returns TRUE on success.
*/
gboolean run_diritem(const guchar *full_path,
DirItem *item,
FilerWindow *filer_window,
FilerWindow *src_window,
gboolean edit)
{
if (item->flags & ITEM_FLAG_SYMLINK && edit)
return follow_symlink(full_path, filer_window, src_window);
switch (item->base_type)
{
case TYPE_DIRECTORY:
if (item->flags & ITEM_FLAG_APPDIR && !edit)
{
run_app(full_path);
return TRUE;
}
if (item->flags & ITEM_FLAG_MOUNT_POINT)
{
open_mountpoint(full_path, item,
filer_window, src_window, edit);
}
else if (filer_window)
filer_change_to(filer_window, full_path, NULL);
else
filer_opendir(full_path, src_window, NULL);
return TRUE;
case TYPE_FILE:
if (EXECUTABLE_FILE(item) && !edit)
{
const char *argv[] = {NULL, NULL};
guchar *dir = filer_window
? filer_window->sym_path
: NULL;
if (item->mime_type == application_x_desktop)
return run_desktop(full_path,
NULL, dir);
else
argv[0] = full_path;
return rox_spawn(dir, argv) != 0;
}
return open_file(full_path, edit ? text_plain
: item->mime_type);
case TYPE_ERROR:
delayed_error(_("File doesn't exist, or I can't "
"access it: %s"), full_path);
return FALSE;
default:
delayed_error(
_("I don't know how to open '%s'"), full_path);
return FALSE;
}
}
FAR DIR *opendir(FAR const char *path)
{
FAR struct inode *inode = NULL;
FAR struct fs_dirent_s *dir;
FAR const char *relpath;
bool isroot = false;
int ret;
/* If we are given 'nothing' then we will interpret this as
* request for the root inode.
*/
inode_semtake();
if (!path || *path == 0 || strcmp(path, "/") == 0)
{
inode = root_inode;
isroot = true;
relpath = NULL;
}
else
{
/* We don't know what to do with relative pathes */
if (*path != '/')
{
ret = -ENOTDIR;
goto errout_with_semaphore;
}
/* Find the node matching the path. */
inode = inode_search(&path, (FAR struct inode**)NULL, (FAR struct inode**)NULL, &relpath);
}
/* Did we get an inode? */
if (!inode)
{
/* 'path' is not a does not exist.*/
ret = ENOTDIR;
goto errout_with_semaphore;
}
/* Allocate a type DIR -- which is little more than an inode
* container.
*/
dir = (FAR struct fs_dirent_s *)kuzalloc(sizeof(struct fs_dirent_s));
if (!dir)
{
/* Insufficient memory to complete the operation.*/
ret = ENOMEM;
goto errout_with_semaphore;
}
/* Populate the DIR structure and return it to the caller. The way that
* we do this depends on whenever this is a "normal" pseudo-file-system
* inode or a file system mountpoint.
*/
dir->fd_position = 0; /* This is the position in the read stream */
/* First, handle the special case of the root inode. This must be
* special-cased here because the root inode might ALSO be a mountpoint.
*/
if (isroot)
{
/* Whatever payload the root inode carries, the root inode is always
* a directory inode in the pseudo-file system
*/
open_pseudodir(inode, dir);
}
/* Is this a node in the pseudo filesystem? Or a mountpoint? If the node
* is the root (isroot == TRUE), then this is a special case.
*/
#ifndef CONFIG_DISABLE_MOUNTPOINT
else if (INODE_IS_MOUNTPT(inode))
{
/* Yes, the node is a file system mountpoint */
dir->fd_root = inode; /* Save the inode where we start */
/* Open the directory at the relative path */
ret = open_mountpoint(inode, relpath, dir);
if (ret != OK)
{
goto errout_with_direntry;
}
}
#endif
else
{
/* The node is part of the root pseudo file system. Does the inode
* have a child? If so that the child would be the 'root' of a list
* of nodes under the directory.
*/
FAR struct inode *child = inode->i_child;
if (child)
{
/* It looks we have a valid pseudo-filesystem directory node. */
open_pseudodir(child, dir);
}
else if (!inode->u.i_ops)
{
/* This is a dangling node with no children and no operations. Set
* up to enumerate an empty directory.
*/
open_emptydir(dir);
}
else
{
ret = ENOTDIR;
goto errout_with_direntry;
}
}
inode_semgive();
return ((DIR*)dir);
/* Nasty goto's make error handling simpler */
errout_with_direntry:
kufree(dir);
errout_with_semaphore:
inode_semgive();
set_errno(ret);
return NULL;
}
