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  12 .\" Copyright 2015 Joyent, Inc.
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  14 .Dd May 11, 2016
  15 .Dt PISPROCIDR 3PROC
  16 .Os
  17 .Sh NAME
  18 .Nm Pisprocdir
  19 .Nd determine if a directory is the /proc directory
  20 .Sh SYNOPSIS
  21 .Lb libproc
  22 .In libproc.h
  23 .Ft int
  24 .Fo Pisprocdir
  25 .Fa "struct ps_prochandle *P"
  26 .Fa "const char *dir"
  27 .Fc
  28 .Sh DESECRIPTION
  29 The
  30 .Fn Pisprocdir
  31 function determines whether or not the directory
  32 .Fa dir
  33 is the root of the /proc file-system.
  34 This works across loopback file system (lofs) mounts and chroots.
  35 .Sh RETURN VALUES
  36 Upon successful completion, the
  37 .Fn Pisprocdir
  38 function returns
  39 .Sy 1
  40 if
  41 .Fa dir
  42 is the /proc directory, otherwise if not, it returns
  43 .Sy 0 .
  44 .Sh INTERFACE STABILITY
  45 .Sy Uncommitted
  46 .Sh MT-LEVEL
  47 See
  48 .Sy LOCKING
  49 in
  50 .Xr libproc 3LIB .
  51 .Sh SEE ALSO
  52 .Xr libproc 3LIB ,
  53 .Xr proc 4 ,
  54 .Xr lofs 7FS