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Diffstat (limited to 'vendor/golang.org/x/sys/unix/syscall.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/syscall.go | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/vendor/golang.org/x/sys/unix/syscall.go b/vendor/golang.org/x/sys/unix/syscall.go deleted file mode 100644 index 5ea74da..0000000 --- a/vendor/golang.org/x/sys/unix/syscall.go +++ /dev/null | |||
@@ -1,86 +0,0 @@ | |||
1 | // Copyright 2009 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 | //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos | ||
6 | |||
7 | // Package unix contains an interface to the low-level operating system | ||
8 | // primitives. OS details vary depending on the underlying system, and | ||
9 | // by default, godoc will display OS-specific documentation for the current | ||
10 | // system. If you want godoc to display OS documentation for another | ||
11 | // system, set $GOOS and $GOARCH to the desired system. For example, if | ||
12 | // you want to view documentation for freebsd/arm on linux/amd64, set $GOOS | ||
13 | // to freebsd and $GOARCH to arm. | ||
14 | // | ||
15 | // The primary use of this package is inside other packages that provide a more | ||
16 | // portable interface to the system, such as "os", "time" and "net". Use | ||
17 | // those packages rather than this one if you can. | ||
18 | // | ||
19 | // For details of the functions and data types in this package consult | ||
20 | // the manuals for the appropriate operating system. | ||
21 | // | ||
22 | // These calls return err == nil to indicate success; otherwise | ||
23 | // err represents an operating system error describing the failure and | ||
24 | // holds a value of type syscall.Errno. | ||
25 | package unix // import "golang.org/x/sys/unix" | ||
26 | |||
27 | import ( | ||
28 | "bytes" | ||
29 | "strings" | ||
30 | "unsafe" | ||
31 | ) | ||
32 | |||
33 | // ByteSliceFromString returns a NUL-terminated slice of bytes | ||
34 | // containing the text of s. If s contains a NUL byte at any | ||
35 | // location, it returns (nil, EINVAL). | ||
36 | func ByteSliceFromString(s string) ([]byte, error) { | ||
37 | if strings.IndexByte(s, 0) != -1 { | ||
38 | return nil, EINVAL | ||
39 | } | ||
40 | a := make([]byte, len(s)+1) | ||
41 | copy(a, s) | ||
42 | return a, nil | ||
43 | } | ||
44 | |||
45 | // BytePtrFromString returns a pointer to a NUL-terminated array of | ||
46 | // bytes containing the text of s. If s contains a NUL byte at any | ||
47 | // location, it returns (nil, EINVAL). | ||
48 | func BytePtrFromString(s string) (*byte, error) { | ||
49 | a, err := ByteSliceFromString(s) | ||
50 | if err != nil { | ||
51 | return nil, err | ||
52 | } | ||
53 | return &a[0], nil | ||
54 | } | ||
55 | |||
56 | // ByteSliceToString returns a string form of the text represented by the slice s, with a terminating NUL and any | ||
57 | // bytes after the NUL removed. | ||
58 | func ByteSliceToString(s []byte) string { | ||
59 | if i := bytes.IndexByte(s, 0); i != -1 { | ||
60 | s = s[:i] | ||
61 | } | ||
62 | return string(s) | ||
63 | } | ||
64 | |||
65 | // BytePtrToString takes a pointer to a sequence of text and returns the corresponding string. | ||
66 | // If the pointer is nil, it returns the empty string. It assumes that the text sequence is terminated | ||
67 | // at a zero byte; if the zero byte is not present, the program may crash. | ||
68 | func BytePtrToString(p *byte) string { | ||
69 | if p == nil { | ||
70 | return "" | ||
71 | } | ||
72 | if *p == 0 { | ||
73 | return "" | ||
74 | } | ||
75 | |||
76 | // Find NUL terminator. | ||
77 | n := 0 | ||
78 | for ptr := unsafe.Pointer(p); *(*byte)(ptr) != 0; n++ { | ||
79 | ptr = unsafe.Pointer(uintptr(ptr) + 1) | ||
80 | } | ||
81 | |||
82 | return string(unsafe.Slice(p, n)) | ||
83 | } | ||
84 | |||
85 | // Single-word zero for use when we need a valid pointer to 0 bytes. | ||
86 | var _zero uintptr | ||