static int binfs_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
{
int ret;
finfo("cmd: %d arg: %08lx\n", cmd, arg);
/* Only one IOCTL command is supported */
if (cmd == FIOC_FILENAME)
{
/* IN: FAR char const ** pointer
* OUT: Pointer to a persistent file name (Guaranteed to persist while
* the file is open).
*/
FAR const char **ptr = (FAR const char **)((uintptr_t)arg);
if (ptr == NULL)
{
ret = -EINVAL;
}
else
{
*ptr = builtin_getname((int)((uintptr_t)filep->f_priv));
ret = OK;
}
}
else
{
ret = -ENOTTY;
}
return ret;
}
static inline void help_builtins(FAR struct nsh_vtbl_s *vtbl)
{
#ifdef CONFIG_NSH_BUILTIN_APPS
FAR const char *name;
int i;
/* List the set of available built-in commands */
nsh_output(vtbl, "\nBuiltin Apps:\n");
for (i = 0; (name = builtin_getname(i)) != NULL; i++)
{
nsh_output(vtbl, " %s\n", name);
}
#endif
}
static int binfs_readdir(struct inode *mountpt, struct fs_dirent_s *dir)
{
FAR const char *name;
unsigned int index;
int ret;
/* Have we reached the end of the directory */
index = dir->u.binfs.fb_index;
name = builtin_getname(index);
if (name == NULL)
{
/* We signal the end of the directory by returning the
* special error -ENOENT
*/
finfo("Entry %d: End of directory\n", index);
ret = -ENOENT;
}
else
{
/* Save the filename and file type */
finfo("Entry %d: \"%s\"\n", index, name);
dir->fd_dir.d_type = DTYPE_FILE;
strncpy(dir->fd_dir.d_name, name, NAME_MAX+1);
/* The application list is terminated by an entry with a NULL name.
* Therefore, there is at least one more entry in the list.
*/
index++;
/* Set up the next directory entry offset. NOTE that we could use the
* standard f_pos instead of our own private fb_index.
*/
dir->u.binfs.fb_index = index;
ret = OK;
}
return ret;
}
