diff options
| -rw-r--r-- | libdiskfs/fsys-options.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/libdiskfs/fsys-options.c b/libdiskfs/fsys-options.c index a02ed78d..4a511037 100644 --- a/libdiskfs/fsys-options.c +++ b/libdiskfs/fsys-options.c @@ -84,3 +84,34 @@ diskfs_S_fsys_set_options (fsys_t fsys, ports_port_deref (pt); return err; } + +/* Implement fsys_get_options as described in <hurd/fsys.defs>. */ +error_t +diskfs_S_fsys_get_options (fsys_t fsys, + char **data, mach_msg_type_number_t *data_len) +{ + char *argz; + error_t err; + struct port_info *port = + ports_lookup_port (diskfs_port_bucket, fsys, diskfs_control_class); + + if (!port) + return EOPNOTSUPP; + + rwlock_reader_lock (&diskfs_fsys_lock); + err = diskfs_get_options (&argz, data_len); + rwlock_reader_unlock (&diskfs_fsys_lock); + + if (!err) + /* Move ARGZ from a malloced buffer into a vm_alloced one. */ + { + err = + vm_allocate (mach_task_self (), (vm_address_t *)data, *data_len, 1); + if (!err) + bcopy (argz, *data, *data_len); + free (argz); + } + + ports_port_deref (port); + return err; +} |