1.\" 2.\" This file and its contents are supplied under the terms of the 3.\" Common Development and Distribution License ("CDDL"), version 1.0. 4.\" You may only use this file in accordance with the terms of version 5.\" 1.0 of the CDDL. 6.\" 7.\" A full copy of the text of the CDDL should have accompanied this 8.\" source. A copy of the CDDL is also available via the Internet at 9.\" http://www.illumos.org/license/CDDL. 10.\" 11.\" 12.\" Copyright 2015 Joyent, Inc. 13.\" 14.Dd May 11, 2016 15.Dt PASFD 3PROC 16.Os 17.Sh NAME 18.Nm Pasfd 19.Nd obtain the process address space file descriptor 20.Sh SYNOPSIS 21.Lb libproc 22.In libproc.h 23.Ft int 24.Fo Pasfd 25.Fa "struct ps_prochandle *P" 26.Fc 27.Sh DESCRIPTION 28The 29.Fn Pasfd 30funtion returns a file descriptor that allows direct access to the 31address space of the process handle 32.Fa P . 33A defined file descriptor is provided when using the 34.Xr Pcreate , 35.Xr Pgrab 3PROC , 36.Xr Pgrab_file 3PROC , 37and 38.Xr Pgrab_core 3PROC 39functions. Note that the address space may be different in each of these 40cases and doesn't necessarily correspond to the /proc 41.Sy as 42file, except for live processes. Other means of obtaining a 43.Sy libproc 44process handle may not define a file descriptor that contains the 45address space. 46.Pp 47The returned file descriptor must not be closed and is only valid for 48as long as the corresponding process handle 49.Fa P 50is valid. After a call to 51.Xr Prelease 3PROC 52the file descriptor is invalidated. 53.Sh RETURN VALUES 54Upon successful completion, the 55.Fn Pasfd 56function returns a valid file descriptor. Otherwise, if none exists, 57then 58.Sy -1 59is returned. 60.Sh INTERFACE STABILITY 61.Sy Uncommitted 62.Sh MT-LEVEL 63See 64.Sy LOCKING 65in 66.Xr libproc 3LIB . 67.Sh SEE ALSO 68.Xr libproc 3LIB , 69.Xr Pcreate 3PROC , 70.Xr Pgrab 3PROC , 71.Xr Pgrab_core 3PROC , 72.Xr Pgrab_file 3PROC , 73.Xr Prelease 3PROC , 74.Xr proc 4 75