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.\" $OpenBSD: fuse_parse_cmd_line.3,v 1.1 2018/07/08 02:28:42 helg Exp $
.\"
.\" Copyright (c) 2018 Helg Bredow <helg.bredow@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: July 8 2018 $
.Dt FUSE_PARSE_CMD_LINE 3
.Os
.Sh NAME
.Nm fuse_parse_cmd_line
.Nd FUSE helper function to parse command line arguments
.Sh SYNOPSIS
.In fuse.h
.Ft int
.Fn fuse_parse_cmd_line "struct fuse_args *args" "char **mp" \
"int *mt" "int *fg"
.Sh DESCRIPTION
.Fn fuse_parse_cmd_line
is a helper function to parse standard FUSE arguments.
.Fa args
can be constructed using the
.Xr FUSE_ARGS_INIT 3
macro.
.Pp
.Fn fuse_parse_cmd_line
supports the following arguments.
.Bl -tag -width Ds
.It -d, -odebug
Causes debug information for subsequent FUSE library calls to be output to
stderr. Implies -f.
.It -f
If this is specified then
.Fa fg
will be set to 1 on success. This flag indicates that the file system
should not detach from the controlling terminal and run in the
foreground.
.It -h, --help, -ho
Print usage information for the options supported by
.Fn fuse_parse_cmd_line .
.It -s
If this is specified then
.Fa mt
will be set to 0 on success. This flag indicates that the file system
should be run in multi-threaded mode. -s is currently ignored and
.Fa mt
will always be 0.
.It -V, --version
Print the FUSE library version to stderr.
.El
.Pp
If the first argument not recognised by
.Fn fuse_parse_cmd_line .
is a valid directory then
.Fa mp
will be set to the canonicalized absolute pathname of this directory.
.Sh RETURN VALUES
The
.Fn fuse_parse_cmd_line
function will return 0 on success and -1 if -h, --help, -ho, -v or --version
are included in
.Fa argv
or
.Fa mp
does not exist or is not a directory.
.El
.Sh SEE ALSO
.Xr FUSE_ARGS_INIT 3 ,
.Xr fuse_daemonize 3 ,
.Xr fuse_main 3 ,
.Xr fuse_setup 3
.Sh STANDARDS
The
.Fn fuse_parse_cmd_line
function conforms to FUSE 2.6.
.Sh HISTORY
The
.Fn fuse_parse_cmd_line
function first appeared in
.Ox 5.4 .
.Sh AUTHORS
.An Sylvestre Gallon Aq Mt ccna.syl@gmail.com
.An Helg Bredow Aq Mt helg@openbsd.org
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