xref: /illumos-gate/usr/src/man/man3proc/Pexecname.3proc (revision 8dfe5547fbf0979fc1065a8b6fddc1e940a7cf4f)
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 PEXECNAME 3PROC
16.Os
17.Sh NAME
18.Nm Pexecname
19.Nd obtain full path to process executable
20.Sh SYNOPSIS
21.Lb libproc
22.In libproc.h
23.Ft "char *"
24.Fo Pexecname
25.Fa "struct ps_prochandle *P"
26.Fa "char *buf"
27.Fa "size_t buflen"
28.Fc
29.Sh DESCRIPTION
30The
31.Fn Pexecname
32function attempts to determine the full path to the process executable
33referred to by the handle
34.Fa P .
35.Pp
36If found,
37.Fa buf
38will be filled in with the full path for up to
39.Fa buflen
40bytes, including the null terminator.
41.Pp
42For a handle grabbed with
43.Xr Pgrab_file 3PROC ,
44the executable refers to the path of the file itself.
45For a core file, the system attempts to determine the original path of the
46executable and return that.
47.Sh RETURN VALUES
48Upon successful completion, the
49.Fn Pexecname
50function returns the value of
51.Fa buf ,
52and up to
53.Fa buflen
54bytes of
55.Fa buf
56are filled in with a null-terminated path.
57Otherwise,
58.Dv NULL
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