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freebsd/lib/libsysdecode/sysdecode_quotactl_cmd.3
John Baldwin 2e43efd0bb Drop "All rights reserved" from my copyright statements.
Reviewed by:	rgrimes
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D19485
2019-03-06 22:11:45 +00:00

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.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org>
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.Dd November 24, 2017
.Dt sysdecode_quotactl_cmd 3
.Os
.Sh NAME
.Nm sysdecode_quotactl_cmd
.Nd output name of quotactl command
.Sh LIBRARY
.Lb libsysdecode
.Sh SYNOPSIS
.In sys/types.h
.In stdbool.h
.In stdio.h
.In sysdecode.h
.Ft bool
.Fn sysdecode_quotactl_cmd "FILE *fp" "int cmd"
.Sh DESCRIPTION
The
.Fn sysdecode_quotactl_cmd
function outputs a text description of the
.Fa cmd
argument to
.Xr quotactl 2
to the stream
.Fa fp .
The description is formatted as an invocation of the
.Dv QCMD
macro defined in the
.In ufs/ufs/quota.h
header.
.Pp
The function first computes the primary and secondary values used by
.Dv QCMD
to construct
.Fa cmd .
If the primary command value does not represent a known constant,
.Fn sysdecode_quotactl_cmd
does not generate any output and returns
.Dv false .
Otherwise,
.Fn sysdecode_quotactl_cmd
outputs text depicting an invocation of
.Dv QCMD
with the associated constants for the primary and secondary command values
and returns
.Dv true .
If the secondary command values does not represent a known constant,
its value is output as a hexadecimal integer.
.Sh RETURN VALUES
The
.Nm sysdecode_quotactl_cmd
function returns
.Dv true
if it outputs a description of
.Fa cmd
and
.Dv false
if it does not.
.Sh EXAMPLES
The statement
.Pp
.Dl sysdecode_quotatcl_cmd(stdout, QCMD(Q_GETQUOTA, USRQUOTA);
.Pp
outputs the text
.Dq QCMD(Q_GETQUOTA, USRQUOTA)
to standard output.
.Sh SEE ALSO
.Xr sysdecode 3