a geicko-2 based round robin ranking system designed to test c++ battleship submissions
battleship.dunkirk.sh
dunkirk.sh
1package sftp
2
3import (
4 "encoding"
5 "fmt"
6)
7
8// all incoming packets
9type requestPacket interface {
10 encoding.BinaryUnmarshaler
11 id() uint32
12}
13
14type responsePacket interface {
15 encoding.BinaryMarshaler
16 id() uint32
17}
18
19// interfaces to group types
20type hasPath interface {
21 requestPacket
22 getPath() string
23}
24
25type hasHandle interface {
26 requestPacket
27 getHandle() string
28}
29
30type notReadOnly interface {
31 notReadOnly()
32}
33
34// // define types by adding methods
35// hasPath
36func (p *sshFxpLstatPacket) getPath() string { return p.Path }
37func (p *sshFxpStatPacket) getPath() string { return p.Path }
38func (p *sshFxpRmdirPacket) getPath() string { return p.Path }
39func (p *sshFxpReadlinkPacket) getPath() string { return p.Path }
40func (p *sshFxpRealpathPacket) getPath() string { return p.Path }
41func (p *sshFxpMkdirPacket) getPath() string { return p.Path }
42func (p *sshFxpSetstatPacket) getPath() string { return p.Path }
43func (p *sshFxpStatvfsPacket) getPath() string { return p.Path }
44func (p *sshFxpRemovePacket) getPath() string { return p.Filename }
45func (p *sshFxpRenamePacket) getPath() string { return p.Oldpath }
46func (p *sshFxpSymlinkPacket) getPath() string { return p.Targetpath }
47func (p *sshFxpOpendirPacket) getPath() string { return p.Path }
48func (p *sshFxpOpenPacket) getPath() string { return p.Path }
49
50func (p *sshFxpExtendedPacketPosixRename) getPath() string { return p.Oldpath }
51func (p *sshFxpExtendedPacketHardlink) getPath() string { return p.Oldpath }
52
53// getHandle
54func (p *sshFxpFstatPacket) getHandle() string { return p.Handle }
55func (p *sshFxpFsetstatPacket) getHandle() string { return p.Handle }
56func (p *sshFxpReadPacket) getHandle() string { return p.Handle }
57func (p *sshFxpWritePacket) getHandle() string { return p.Handle }
58func (p *sshFxpReaddirPacket) getHandle() string { return p.Handle }
59func (p *sshFxpClosePacket) getHandle() string { return p.Handle }
60
61// notReadOnly
62func (p *sshFxpWritePacket) notReadOnly() {}
63func (p *sshFxpSetstatPacket) notReadOnly() {}
64func (p *sshFxpFsetstatPacket) notReadOnly() {}
65func (p *sshFxpRemovePacket) notReadOnly() {}
66func (p *sshFxpMkdirPacket) notReadOnly() {}
67func (p *sshFxpRmdirPacket) notReadOnly() {}
68func (p *sshFxpRenamePacket) notReadOnly() {}
69func (p *sshFxpSymlinkPacket) notReadOnly() {}
70func (p *sshFxpExtendedPacketPosixRename) notReadOnly() {}
71func (p *sshFxpExtendedPacketHardlink) notReadOnly() {}
72
73// some packets with ID are missing id()
74func (p *sshFxpDataPacket) id() uint32 { return p.ID }
75func (p *sshFxpStatusPacket) id() uint32 { return p.ID }
76func (p *sshFxpStatResponse) id() uint32 { return p.ID }
77func (p *sshFxpNamePacket) id() uint32 { return p.ID }
78func (p *sshFxpHandlePacket) id() uint32 { return p.ID }
79func (p *StatVFS) id() uint32 { return p.ID }
80func (p *sshFxVersionPacket) id() uint32 { return 0 }
81
82// take raw incoming packet data and build packet objects
83func makePacket(p rxPacket) (requestPacket, error) {
84 var pkt requestPacket
85 switch p.pktType {
86 case sshFxpInit:
87 pkt = &sshFxInitPacket{}
88 case sshFxpLstat:
89 pkt = &sshFxpLstatPacket{}
90 case sshFxpOpen:
91 pkt = &sshFxpOpenPacket{}
92 case sshFxpClose:
93 pkt = &sshFxpClosePacket{}
94 case sshFxpRead:
95 pkt = &sshFxpReadPacket{}
96 case sshFxpWrite:
97 pkt = &sshFxpWritePacket{}
98 case sshFxpFstat:
99 pkt = &sshFxpFstatPacket{}
100 case sshFxpSetstat:
101 pkt = &sshFxpSetstatPacket{}
102 case sshFxpFsetstat:
103 pkt = &sshFxpFsetstatPacket{}
104 case sshFxpOpendir:
105 pkt = &sshFxpOpendirPacket{}
106 case sshFxpReaddir:
107 pkt = &sshFxpReaddirPacket{}
108 case sshFxpRemove:
109 pkt = &sshFxpRemovePacket{}
110 case sshFxpMkdir:
111 pkt = &sshFxpMkdirPacket{}
112 case sshFxpRmdir:
113 pkt = &sshFxpRmdirPacket{}
114 case sshFxpRealpath:
115 pkt = &sshFxpRealpathPacket{}
116 case sshFxpStat:
117 pkt = &sshFxpStatPacket{}
118 case sshFxpRename:
119 pkt = &sshFxpRenamePacket{}
120 case sshFxpReadlink:
121 pkt = &sshFxpReadlinkPacket{}
122 case sshFxpSymlink:
123 pkt = &sshFxpSymlinkPacket{}
124 case sshFxpExtended:
125 pkt = &sshFxpExtendedPacket{}
126 default:
127 return nil, fmt.Errorf("unhandled packet type: %s", p.pktType)
128 }
129 if err := pkt.UnmarshalBinary(p.pktBytes); err != nil {
130 // Return partially unpacked packet to allow callers to return
131 // error messages appropriately with necessary id() method.
132 return pkt, err
133 }
134 return pkt, nil
135}