mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-30 12:04:07 +00:00
78 lines
2.4 KiB
Groff
78 lines
2.4 KiB
Groff
.\"
|
|
.\" Copyright (c) 2009 Ulf Lilleengen
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.Dd May 10, 2020
|
|
.Dt KINFO_GETPROC 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm kinfo_getproc
|
|
.Nd function for getting process information from kernel
|
|
.Sh LIBRARY
|
|
.Lb libutil
|
|
.Sh SYNOPSIS
|
|
.In sys/types.h
|
|
.In sys/user.h
|
|
.In libutil.h
|
|
.Ft struct kinfo_proc *
|
|
.Fn kinfo_getproc "pid_t pid"
|
|
.Sh DESCRIPTION
|
|
This function is used for obtaining process information from the kernel.
|
|
.Pp
|
|
The
|
|
.Ar pid
|
|
field contains the process identifier.
|
|
This should be a process that you have privilege to access.
|
|
This function is a wrapper around
|
|
.Xr sysctl 3
|
|
with the
|
|
.Dv KERN_PROC_PID
|
|
mib.
|
|
While the kernel returns a packed structure, this function expands the
|
|
data into a fixed record format.
|
|
.Sh RETURN VALUES
|
|
On success the
|
|
.Fn kinfo_getproc
|
|
function returns a pointer to a
|
|
.Vt struct kinfo_proc
|
|
structure as defined by
|
|
.In sys/user.h .
|
|
The pointer was obtained by an internal call to
|
|
.Xr malloc 3
|
|
and must be freed by the caller with a call to
|
|
.Xr free 3 .
|
|
On failure the
|
|
.Fn kinfo_getproc
|
|
function returns
|
|
.Dv NULL .
|
|
.Sh SEE ALSO
|
|
.Xr free 3 ,
|
|
.Xr malloc 3 ,
|
|
.Xr sysctl 3
|
|
.Sh HISTORY
|
|
The
|
|
.Fn kinfo_getproc
|
|
function first appeared in
|
|
.Fx 7.0 .
|