xref: /illumos-gate/usr/src/man/man3proc/pr_creat.3proc (revision 2a6e99a0f1f7d22c0396e8b2ce9b9babbd1056cf)
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 PR_CREAT 3PROC
16.Os
17.Sh NAME
18.Nm pr_creat
19.Nd inject creat system call into victim process
20.Sh SYNOPSIS
21.Lb libproc
22.In libproc.h
23.Ft int
24.Fo pr_creat
25.Fa "struct ps_prochandle *P"
26.Fa "const char *filename"
27.Fa "mode_t mode"
28.Fc
29.Sh DESCRIPTION
30The
31.Fn pr_creat
32function injects the
33.Xr creat 2
34system call into the target process
35.Fa P
36by means of the agent LWP.
37If the process handle
38.Fa P
39is
40.Dv NULL
41then this is equivalent to calling
42.Xr creat 2
43on the currently running process.
44.Pp
45The arguments
46.Fa filename
47and
48.Fa mode
49have the same meaning as in
50.Xr creat 2 .
51See
52.Xr creat 2
53for the full description and purpose of the
54.Sy creat
55system call and its arguments.
56.Pp
57The
58.Fn pr_creat
59function only works on active processes.
60Process handles that correspond to core files, zombie processes, or ELF objects
61do not support system call injection.
62.Sh RETURN VALUES
63Upon successful completion, the
64.Fn pr_creat
65function's return value is that described in
66.Xr creat 2 .
67Otherwise,
68.Sy -1
69is returned and
70.Sy errno
71is set to
72.Er ENOSYS
73to indicate that the system call could not be injected.
74.Sh ERRORS
75For the full list of errors see the
76.Sy ERRORS
77section in
78.Xr creat 2 .
79.Pp
80The
81.Fn pr_creat
82function will fail if:
83.Bl -tag -width Er
84.It Er ENOSYS
85An error occurred while trying to invoke the agent LWP and inject a
86system call in the process handle
87.Fa P
88or the process handle
89.Fa P
90does not support system call injection.
91.El
92.Sh INTERFACE STABILITY
93.Sy Uncommitted
94.Sh MT-LEVEL
95See
96.Sy LOCKING
97in
98.Xr libproc 3LIB .
99.Sh SEE ALSO
100.Xr creat 2 ,
101.Xr libproc 3LIB ,
102.Xr proc 4
103