blob: a7a6b734c1018097719382e2bb8e99a9aad08499 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/*
* $Id: cap_proc.c,v 1.2 1999/04/18 20:50:01 morgan Exp $
*
* Copyright (c) 1997-8 Andrew G Morgan <morgan@linux.kernel.org>
*
* See end of file for Log.
*
* This file deals with setting capabilities on processes.
*/
#include "libcap.h"
cap_t cap_get_proc(void)
{
cap_t result;
/* allocate a new capability set */
result = cap_init();
if (result) {
_cap_debug("getting current process' capabilities");
/* fill the capability sets via a system call */
if (capget(&result->head, &result->set)) {
cap_free(&result);
}
}
return result;
}
int cap_set_proc(cap_t cap_d)
{
int retval;
if (!good_cap_t(cap_d)) {
errno = EINVAL;
return -1;
}
_cap_debug("setting process capabilities");
retval = capset(&cap_d->head, &cap_d->set);
cap_d->head.version = _LINUX_CAPABILITY_VERSION;
return retval;
}
/* the following two functions are not required by POSIX */
/* read the caps on a specific process */
int capgetp(pid_t pid, cap_t cap_d)
{
int error;
if (!good_cap_t(cap_d)) {
errno = EINVAL;
return -1;
}
_cap_debug("getting process capabilities for proc %d", pid);
cap_d->head.pid = pid;
error = capget(&cap_d->head, &cap_d->set);
cap_d->head.version = _LINUX_CAPABILITY_VERSION;
cap_d->head.pid = 0;
return error;
}
/* set the caps on a specific process/pg etc.. */
int capsetp(pid_t pid, cap_t cap_d)
{
int error;
if (!good_cap_t(cap_d)) {
errno = EINVAL;
return -1;
}
_cap_debug("setting process capabilities for proc %d", pid);
cap_d->head.pid = pid;
error = capset(&cap_d->head, &cap_d->set);
cap_d->head.version = _LINUX_CAPABILITY_VERSION;
cap_d->head.pid = 0;
return error;
}
/*
* $Log: cap_proc.c,v $
* Revision 1.2 1999/04/18 20:50:01 morgan
* reliable behavior when trying to talk with a kernel that has a more
* modern capability implementation than the one the library was compiled
* with.
*
* Revision 1.1.1.1 1999/04/17 22:16:31 morgan
* release 1.0 of libcap
*
* Revision 1.5 1998/05/24 22:54:09 morgan
* updated for 2.1.104
*
* Revision 1.4 1997/05/14 05:17:13 morgan
* bug-fix from zefram (errno no set on success)
*
* Revision 1.3 1997/05/04 05:35:46 morgan
* fixed errno setting. syscalls do this part
*
* Revision 1.2 1997/04/28 00:57:11 morgan
* fixes and zefram's patches
*
* Revision 1.1 1997/04/21 04:32:52 morgan
* Initial revision
*
*/
|
