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