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.\" Copyright 2015 Joyent, Inc.
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.Dd Aug 27, 2019
.Dt PISPROCIDR 3PROC
.Os
.Sh NAME
.Nm Pisprocdir
.Nd determine if a directory is the /proc directory
.Sh LIBRARY
.Lb libproc
.Sh SYNOPSIS
.In libproc.h
.Ft int
.Fo Pisprocdir
.Fa "struct ps_prochandle *P"
.Fa "const char *dir"
.Fc
.Sh DESCRIPTION
The
.Fn Pisprocdir
function determines whether or not the directory
.Fa dir
is the root of the /proc file-system.
This works across loopback file system (lofs) mounts and chroots.
.Sh RETURN VALUES
Upon successful completion, the
.Fn Pisprocdir
function returns
.Sy 1
if
.Fa dir
is the /proc directory, otherwise if not, it returns
.Sy 0 .
.Sh INTERFACE STABILITY
.Sy Uncommitted
.Sh MT-LEVEL
See
.Sy LOCKING
in
.Xr libproc 3LIB .
.Sh SEE ALSO
.Xr libproc 3LIB ,
.Xr proc 4 ,
.Xr lofs 7FS