a geicko-2 based round robin ranking system designed to test c++ battleship submissions
battleship.dunkirk.sh
dunkirk.sh
1package sshfx
2
3// FileMode represents a file’s mode and permission bits.
4// The bits are defined according to POSIX standards,
5// and may not apply to the OS being built for.
6type FileMode uint32
7
8// Permission flags, defined here to avoid potential inconsistencies in individual OS implementations.
9const (
10 ModePerm FileMode = 0o0777 // S_IRWXU | S_IRWXG | S_IRWXO
11 ModeUserRead FileMode = 0o0400 // S_IRUSR
12 ModeUserWrite FileMode = 0o0200 // S_IWUSR
13 ModeUserExec FileMode = 0o0100 // S_IXUSR
14 ModeGroupRead FileMode = 0o0040 // S_IRGRP
15 ModeGroupWrite FileMode = 0o0020 // S_IWGRP
16 ModeGroupExec FileMode = 0o0010 // S_IXGRP
17 ModeOtherRead FileMode = 0o0004 // S_IROTH
18 ModeOtherWrite FileMode = 0o0002 // S_IWOTH
19 ModeOtherExec FileMode = 0o0001 // S_IXOTH
20
21 ModeSetUID FileMode = 0o4000 // S_ISUID
22 ModeSetGID FileMode = 0o2000 // S_ISGID
23 ModeSticky FileMode = 0o1000 // S_ISVTX
24
25 ModeType FileMode = 0xF000 // S_IFMT
26 ModeNamedPipe FileMode = 0x1000 // S_IFIFO
27 ModeCharDevice FileMode = 0x2000 // S_IFCHR
28 ModeDir FileMode = 0x4000 // S_IFDIR
29 ModeDevice FileMode = 0x6000 // S_IFBLK
30 ModeRegular FileMode = 0x8000 // S_IFREG
31 ModeSymlink FileMode = 0xA000 // S_IFLNK
32 ModeSocket FileMode = 0xC000 // S_IFSOCK
33)
34
35// IsDir reports whether m describes a directory.
36// That is, it tests for m.Type() == ModeDir.
37func (m FileMode) IsDir() bool {
38 return (m & ModeType) == ModeDir
39}
40
41// IsRegular reports whether m describes a regular file.
42// That is, it tests for m.Type() == ModeRegular
43func (m FileMode) IsRegular() bool {
44 return (m & ModeType) == ModeRegular
45}
46
47// Perm returns the POSIX permission bits in m (m & ModePerm).
48func (m FileMode) Perm() FileMode {
49 return (m & ModePerm)
50}
51
52// Type returns the type bits in m (m & ModeType).
53func (m FileMode) Type() FileMode {
54 return (m & ModeType)
55}
56
57// String returns a `-rwxrwxrwx` style string representing the `ls -l` POSIX permissions string.
58func (m FileMode) String() string {
59 var buf [10]byte
60
61 switch m.Type() {
62 case ModeRegular:
63 buf[0] = '-'
64 case ModeDir:
65 buf[0] = 'd'
66 case ModeSymlink:
67 buf[0] = 'l'
68 case ModeDevice:
69 buf[0] = 'b'
70 case ModeCharDevice:
71 buf[0] = 'c'
72 case ModeNamedPipe:
73 buf[0] = 'p'
74 case ModeSocket:
75 buf[0] = 's'
76 default:
77 buf[0] = '?'
78 }
79
80 const rwx = "rwxrwxrwx"
81 for i, c := range rwx {
82 if m&(1<<uint(9-1-i)) != 0 {
83 buf[i+1] = byte(c)
84 } else {
85 buf[i+1] = '-'
86 }
87 }
88
89 if m&ModeSetUID != 0 {
90 if buf[3] == 'x' {
91 buf[3] = 's'
92 } else {
93 buf[3] = 'S'
94 }
95 }
96
97 if m&ModeSetGID != 0 {
98 if buf[6] == 'x' {
99 buf[6] = 's'
100 } else {
101 buf[6] = 'S'
102 }
103 }
104
105 if m&ModeSticky != 0 {
106 if buf[9] == 'x' {
107 buf[9] = 't'
108 } else {
109 buf[9] = 'T'
110 }
111 }
112
113 return string(buf[:])
114}