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[[!meta copyright="Copyright © 1992, 1993, 1994, 1995, 1996, 1997, 2002, 2009,
2014 Free Software Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]
[[!meta title="fsys_getroot"]]
routine fsys_getroot(
fsys: fsys_t;
RPT
#ifdef FSYS_GETROOT_UREPLY
ureplyport ureply: mig_reply_port_t;
#endif
dotdot_node: mach_port_send_t;
gen_uids: idarray_t;
gen_gids: idarray_t;
flags: int;
out do_retry: retry_type;
out retry_name: string_t;
out file: mach_port_send_t);
Return a file to the root of the filesystem. `flags` are as for
[[`dir_lookup`|dir_lookup]] (but `O_CREAT` and `O_EXCL` are not meaningful).
`do_retry`, `retry_name`, and `result` are as for [[`dir_lookup`|dir_lookup]].
The port should be authenticated with `gen_uids` and `gen_gids` (except, of
course, for `FS_RETRY_REAUTH` and `FS_RETRY_MAGICAL`). `dotdot_node` is an
unauthenticated port for the directory in which this root is located.
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