Minor cleanup in several of the FUSE manuals, including:

* clarify that dying from a signal is not considered a failure of fuse_loop(3)
* add many missing .Dv macros and a few missing .Pa and .Er macros
* remove future tense in several cases where it's pointless
* polish some capitalization and punctuation and fix a few typos
OK helg@

lib/libfuse/fuse_chan_fd.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_chan_fd.3,v 1.4 2025/06/10 12:55:33 schwarze Exp $
+.\" $OpenBSD: fuse_chan_fd.3,v 1.5 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg.bredow@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 10 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_CHAN_FD 3
 .Os
 .Sh NAME
@@ -27,7 +27,7 @@
 .Fn fuse_chan_fd "struct fuse_chan *ch"
 .Sh DESCRIPTION
 .Fn fuse_chan_fd
-will return the file descriptor to the FUSE device opened for reading
+returns the file descriptor to the FUSE device opened for reading
 and writing by
 .Xr fuse_mount 3 .
 .Sh RETURN VALUES
@@ -36,7 +36,9 @@ If successful,
 returns a non-negative integer, termed a file descriptor.
 If
 .Fa ch
-is NULL, a value of -1 is returned.
+is
+.Dv NULL ,
+a value of -1 is returned.
 .Sh SEE ALSO
 .Xr fuse_mount 3 ,
 .Xr open 3 ,

lib/libfuse/fuse_daemonize.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_daemonize.3,v 1.5 2025/06/10 12:55:33 schwarze Exp $
+.\" $OpenBSD: fuse_daemonize.3,v 1.6 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 10 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_DAEMONIZE 3
 .Os
 .Sh NAME
@@ -30,12 +30,14 @@ If
 .Fa foreground
 is 0,
 .Fn fuse_daemonize
-will detach from the controlling terminal and run in the background as a
+detaches from the controlling terminal and runs in the background as a
 system daemon.
-Otherwise, the process will continue to run in the foreground.
+Otherwise, the process continues to run in the foreground.
 .Pp
-The current working directory is changed to the root (/) and standard input;
-standard output and standard error are redirected to /dev/null.
+The current working directory is changed to the root directory
+.Pq Pa / .
+Standard input, standard output, and standard error are redirected to
+.Pa /dev/null .
 .Sh RETURN VALUES
 Upon success,
 .Fn fuse_daemonize

lib/libfuse/fuse_destroy.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_destroy.3,v 1.4 2025/09/20 15:01:23 helg Exp $
+.\" $OpenBSD: fuse_destroy.3,v 1.5 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg.bredow@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 20 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_DESTROY 3
 .Os
 .Sh NAME
@@ -27,12 +27,13 @@
 .Fn fuse_destroy "struct fuse *f"
 .Sh DESCRIPTION
 .Fn fuse_destroy
-Frees memory associated with the FUSE channel and FUSE handle specified by
+frees memory associated with the FUSE channel and FUSE handle specified by
 .Fa f .
-The file system's destroy operation will be called if
+The file system's destroy operation is called if
 .Xr fuse_loop 3
-did not receive the FBT_DESTROY message.
-Usually due to terminating from a signal.
+did not receive the
+.Dv FBT_DESTROY
+message, usually due to terminating from a signal.
 .Pp
 This function does not unmount the file system, which should be done
 with

lib/libfuse/fuse_loop.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_loop.3,v 1.4 2025/09/20 15:01:23 helg Exp $
+.\" $OpenBSD: fuse_loop.3,v 1.5 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 20 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_LOOP 3
 .Os
 .Sh NAME
@@ -41,15 +41,22 @@ prior to calling
 .Fn fuse_loop .
 .Pp
 .Fn fuse_loop
-will return when it reads the FBT_DESTROY message, which indicates that
+returns when it reads the
+.Dv FBT_DESTROY
+message, which indicates that
 the file system is being unmounted.
 .Pp
-If FUSE signaler handlers have been installed and either SIGHUP, SIGINT
-or SIGTERM is received then
+If FUSE signal handlers have been installed and
+.Dv SIGHUP ,
+.Dv SIGINT ,
+or
+.Dv SIGTERM
+is received,
 .Fn fuse_loop
-will terminate.
+terminates successfully.
 See
-.Xr fuse_set_signal_handlers 3 .
+.Xr fuse_set_signal_handlers 3
+for more details.
 .Pp
 .Fn fuse_loop_mt
 is a multi-threaded variant that allows the file system to process
@@ -58,7 +65,7 @@ This is not implemented on
 .Ox .
 .Sh RETURN VALUES
 .Fn fuse_loop
-will return 0 on success and -1 on failure.
+returns 0 on success or -1 on failure.
 .Pp
 .Fn fuse_loop_mt
 always returns -1.

lib/libfuse/fuse_mount.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_mount.3,v 1.4 2025/09/20 15:01:23 helg Exp $
+.\" $OpenBSD: fuse_mount.3,v 1.5 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg@openbsd.org>
 .\"
@@ -13,7 +13,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 20 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_MOUNT 3
 .Os
 .Sh NAME
@@ -45,7 +45,7 @@ either individually or together separated by a comma.
 .Bl -tag -width Ds
 .It allow_other
 Allow other users to access the file system.
-By default, FUSE will prevent other users from accessing the file system or to
+By default, FUSE prevents other users from accessing the file system or to
 .Xr statfs 2
 the file system.
 This security measure is particularly important for
@@ -77,22 +77,25 @@ Can also be specified by itself with
 .El
 .Pp
 .Fn fuse_unmount
-will close the FUSE device and attempt to unmount the file system mounted at
+closes the FUSE device and attempts to unmount the file system mounted at
 .Fa dir
 by calling the
 .Xr unmount 2
 system call.
 To avoid a deadlock, the kernel will not send the
-FBT_DESTROY message to the file system.
+.Dv FBT_DESTROY
+message to the file system.
 There is no way to determine whether this call was successful.
 .Pp
 Only the super user can mount and unmount FUSE file systems.
 .Sh RETURN VALUES
 .Fn fuse_main
-will return NULL if the file system cannot be mounted.
+returns
+.Dv NULL
+if the file system cannot be mounted.
 .Sh ERRORS
 .Fn fuse_mount
-will fail when one of the following occurs:
+fails when one of the following occurs:
 .Fa dir
 does not exist or is not a directory.
 The fuse device cannot be opened for reading and writing.

lib/libfuse/fuse_new.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_new.3,v 1.10 2025/09/20 15:01:23 helg Exp $
+.\" $OpenBSD: fuse_new.3,v 1.11 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2013 Sylvestre Gallon <ccna.syl@gmail.com>
 .\" Copyright (c) 2018 Helg Bredow <helg@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 20 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_NEW 3
 .Os
 .Sh NAME
@@ -39,11 +39,13 @@ a negated errno value (-errno) on failure.
 .Pp
 All operations are optional but a functional file system will want to
 implement at least statfs, readdir, open, read and getattr.
-FUSE will return ENOSYS if any operation other than flush, fsync or
+FUSE returns
+.Er ENOSYS
+if any operation other than flush, fsync or
 fsyncdir is not implemented.
 .Pp
 The first parameter to each of these operations (except for init and
-destroy) is a NULL terminated string representing the full path to
+destroy) is a NUL-terminated string representing the full path to
 the file or directory, relative to the root of the file system, that
 is being operated on.
 .Bd -literal

lib/libfuse/fuse_opt.3

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: fuse_opt.3,v 1.5 2025/09/22 17:18:40 schwarze Exp $
+.\"	$OpenBSD: fuse_opt.3,v 1.6 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) Ray Lai <ray@raylai.com>
 .\" Copyright (c) Helg Bredow <helg@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: September 22 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_OPT 3
 .Os
 .Sh NAME
@@ -157,7 +157,9 @@ and
 which are usually obtained from
 .Fn main .
 .Fa argv
-is NULL-terminated, and is suitable for use with
+is
+.Dv NULL Ns -terminated ,
+and is suitable for use with
 .Xr execvp 3 .
 .Fa argv
 is used directly and
@@ -190,7 +192,9 @@ adds an option
 to a comma-separated string of options
 .Fa opts .
 .Fa *opts
-can be NULL, which is typically used when adding the first option.
+can be
+.Dv NULL ,
+which is typically used when adding the first option.
 .Pp
 .It Fn fuse_opt_add_opt_escaped
 escapes any
@@ -224,7 +228,9 @@ parses options, setting any members of
 automatically depending on the format of the template.
 If
 .Fa proc
-is not NULL, then this is called for any argument that matches a template
+is not
+.Dv NULL ,
+then this is called for any argument that matches a template
 that has
 .Fa val
 = FUSE_OPT_KEY.
@@ -269,10 +275,10 @@ to be set by a single argument or option (see example for gid below).
 .Fn fuse_opt_add_opt_escaped ,
 and
 .Fn fuse_opt_parse
-return 0 on success, -1 on error.
+return 0 on success or -1 on error.
 .Pp
 .Fn fuse_opt_match
-returns 1 on match, 0 if no match.
+returns 1 on match or 0 if no match.
 .Sh ERRORS
 .Fn fuse_opt_add_arg ,
 .Fn fuse_opt_insert_arg ,

lib/libfuse/fuse_parse_cmdline.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_parse_cmdline.3,v 1.2 2025/06/10 12:55:33 schwarze Exp $
+.\" $OpenBSD: fuse_parse_cmdline.3,v 1.3 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg.bredow@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 10 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_PARSE_CMDLINE 3
 .Os
 .Sh NAME
@@ -73,7 +73,7 @@ will be set to the canonicalized absolute pathname of this directory.
 .Sh RETURN VALUES
 The
 .Fn fuse_parse_cmdline
-function will return 0 on success and -1 if
+function returns 0 on success or -1 if
 .Fl h , Fl -help , Fl ho , Fl v
 or
 .Fl -version

lib/libfuse/fuse_set_signal_handlers.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_set_signal_handlers.3,v 1.3 2025/06/10 12:55:33 schwarze Exp $
+.\" $OpenBSD: fuse_set_signal_handlers.3,v 1.4 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 10 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_SET_SIGNAL_HANDLERS 3
 .Os
 .Sh NAME
@@ -30,19 +30,24 @@
 .Fn fuse_remove_signal_handlers "struct fuse_session *se"
 .Sh DESCRIPTION
 .Fn fuse_set_signal_handlers
-installs signal handlers for the signals SIGHUP, SIGINT and SIGTERM that
-will attempt to unmount the file system.
-SIGPIPE will be ignored.
+installs signal handlers for the signals
+.Dv SIGHUP ,
+.Dv SIGINT ,
+and
+.Dv SIGTERM
+that will attempt to unmount the file system.
+.Dv SIGPIPE
+will be ignored.
 If there is already a signal handler installed for any of these signals
 then it is not replaced.
 .Pp
 .Fn fuse_remove_signal_handlers
-will restore the default signal handlers for any signals that were
+restores the default signal handlers for any signals that were
 installed by
 .Fn fuse_set_signal_handlers .
 .Sh RETURN VALUES
 .Fn fuse_set_signal_handlers
-will return 0 on success and -1 on failure.
+returns 0 on success or -1 on failure.
 .Sh SEE ALSO
 .Xr sigaction 2 ,
 .Xr fuse_setup 3

lib/libfuse/fuse_setup.3

@@ -1,4 +1,4 @@
-.\" $OpenBSD: fuse_setup.3,v 1.4 2025/06/10 12:55:33 schwarze Exp $
+.\" $OpenBSD: fuse_setup.3,v 1.5 2025/09/23 09:28:28 schwarze Exp $
 .\"
 .\" Copyright (c) 2018 Helg Bredow <helg.bredow@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: June 10 2025 $
+.Dd $Mdocdate: September 23 2025 $
 .Dt FUSE_SETUP 3
 .Os
 .Sh NAME
@@ -31,19 +31,26 @@
 .Fn fuse_setup
 is a helper function that mounts a FUSE file system, creates a new FUSE
 session and installs signal handlers that will try to unmount the file
-system on SIGINT, SIGTERM or SIGHUP.
+system on
+.Dv SIGINT ,
+.Dv SIGTERM ,
+or
+.Dv SIGHUP .
 .Pp
 .Fn fuse_setup
-will parse the arguments specified by argv and if neither the
-.Fl f , Fl d
+parses the arguments specified by
+.Fa argv ,
+and if neither the
+.Fl f ,
+.Fl d ,
 or
 .Fl odebug
-options were specified, detach from the controlling terminal
-and run in the background.
+options were specified, detaches from the controlling terminal
+and runs in the background.
 On success,
 .Fa mt
-will be 1 if the file system operations will be invoked in
-parallel (multi-threaded) or 0 if file system operations are serialized.
+is set to 1 if the file system operations will be invoked in
+parallel (multi-threaded) or to 0 if file system operations are serialized.
 File systems that do not support multi-threaded operation must include the
 .Fl s
 argument in
@@ -65,7 +72,9 @@ See
 .Xr fuse_new 3 .
 .Sh RETURN VALUES
 .Fn fuse_setup
-will return NULL on failure.
+returns
+.Dv NULL
+on failure.
 .Sh SEE ALSO
 .Xr fuse_main 3 ,
 .Xr fuse_mount 3  ,