diff options
Diffstat (limited to 'vendor/golang.org/x/sys/unix/pledge_openbsd.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/pledge_openbsd.go | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/vendor/golang.org/x/sys/unix/pledge_openbsd.go b/vendor/golang.org/x/sys/unix/pledge_openbsd.go deleted file mode 100644 index 6a09af5..0000000 --- a/vendor/golang.org/x/sys/unix/pledge_openbsd.go +++ /dev/null | |||
@@ -1,111 +0,0 @@ | |||
1 | // Copyright 2016 The Go Authors. All rights reserved. | ||
2 | // Use of this source code is governed by a BSD-style | ||
3 | // license that can be found in the LICENSE file. | ||
4 | |||
5 | package unix | ||
6 | |||
7 | import ( | ||
8 | "errors" | ||
9 | "fmt" | ||
10 | "strconv" | ||
11 | ) | ||
12 | |||
13 | // Pledge implements the pledge syscall. | ||
14 | // | ||
15 | // This changes both the promises and execpromises; use PledgePromises or | ||
16 | // PledgeExecpromises to only change the promises or execpromises | ||
17 | // respectively. | ||
18 | // | ||
19 | // For more information see pledge(2). | ||
20 | func Pledge(promises, execpromises string) error { | ||
21 | if err := pledgeAvailable(); err != nil { | ||
22 | return err | ||
23 | } | ||
24 | |||
25 | pptr, err := BytePtrFromString(promises) | ||
26 | if err != nil { | ||
27 | return err | ||
28 | } | ||
29 | |||
30 | exptr, err := BytePtrFromString(execpromises) | ||
31 | if err != nil { | ||
32 | return err | ||
33 | } | ||
34 | |||
35 | return pledge(pptr, exptr) | ||
36 | } | ||
37 | |||
38 | // PledgePromises implements the pledge syscall. | ||
39 | // | ||
40 | // This changes the promises and leaves the execpromises untouched. | ||
41 | // | ||
42 | // For more information see pledge(2). | ||
43 | func PledgePromises(promises string) error { | ||
44 | if err := pledgeAvailable(); err != nil { | ||
45 | return err | ||
46 | } | ||
47 | |||
48 | pptr, err := BytePtrFromString(promises) | ||
49 | if err != nil { | ||
50 | return err | ||
51 | } | ||
52 | |||
53 | return pledge(pptr, nil) | ||
54 | } | ||
55 | |||
56 | // PledgeExecpromises implements the pledge syscall. | ||
57 | // | ||
58 | // This changes the execpromises and leaves the promises untouched. | ||
59 | // | ||
60 | // For more information see pledge(2). | ||
61 | func PledgeExecpromises(execpromises string) error { | ||
62 | if err := pledgeAvailable(); err != nil { | ||
63 | return err | ||
64 | } | ||
65 | |||
66 | exptr, err := BytePtrFromString(execpromises) | ||
67 | if err != nil { | ||
68 | return err | ||
69 | } | ||
70 | |||
71 | return pledge(nil, exptr) | ||
72 | } | ||
73 | |||
74 | // majmin returns major and minor version number for an OpenBSD system. | ||
75 | func majmin() (major int, minor int, err error) { | ||
76 | var v Utsname | ||
77 | err = Uname(&v) | ||
78 | if err != nil { | ||
79 | return | ||
80 | } | ||
81 | |||
82 | major, err = strconv.Atoi(string(v.Release[0])) | ||
83 | if err != nil { | ||
84 | err = errors.New("cannot parse major version number returned by uname") | ||
85 | return | ||
86 | } | ||
87 | |||
88 | minor, err = strconv.Atoi(string(v.Release[2])) | ||
89 | if err != nil { | ||
90 | err = errors.New("cannot parse minor version number returned by uname") | ||
91 | return | ||
92 | } | ||
93 | |||
94 | return | ||
95 | } | ||
96 | |||
97 | // pledgeAvailable checks for availability of the pledge(2) syscall | ||
98 | // based on the running OpenBSD version. | ||
99 | func pledgeAvailable() error { | ||
100 | maj, min, err := majmin() | ||
101 | if err != nil { | ||
102 | return err | ||
103 | } | ||
104 | |||
105 | // Require OpenBSD 6.4 as a minimum. | ||
106 | if maj < 6 || (maj == 6 && min <= 3) { | ||
107 | return fmt.Errorf("cannot call Pledge on OpenBSD %d.%d", maj, min) | ||
108 | } | ||
109 | |||
110 | return nil | ||
111 | } | ||