/
Error.swift
213 lines (192 loc) 路 6.98 KB
/
Error.swift
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
//
// SocksError.swift
// Socks
//
// Created by Honza Dvorsky on 3/20/16.
//
//
#if os(Linux)
import Glibc
#else
import Darwin
#endif
public enum ErrorReason {
case createSocketFailed
case optionSetFailed(level: Int32, name: Int32, value: String)
case optionGetFailed(level: Int32, name: Int32, type: String)
case closeSocketFailed
case pipeCreationFailed
case selectFailed(reads: [Descriptor], writes: [Descriptor], errors: [Descriptor])
case localAddressResolutionFailed
case remoteAddressResolutionFailed
case ipAddressResolutionFailed
case ipAddressValidationFailed
case failedToGetIPFromHostname(String)
case unparsableBytes
case connectFailed
case connectFailedWithSocketErrorCode(Int32)
case connectTimedOut
case sendFailedToSendAllBytes
case readFailed
case bindFailed
case listenFailed
case acceptFailed
case unsupportedSocketAddressFamily(Int32)
case concreteSocketAddressFamilyRequired
case generic(String)
}
//see error codes: https://gist.github.com/czechboy0/517b22041c0eeb33f723bb66933882e4
public struct SocksError: Error, CustomStringConvertible {
public let type: ErrorReason
public let number: Int32
init(_ type: ErrorReason) {
self.type = type
self.number = errno //last reported error code
}
init(message: String) {
self.type = .generic(message)
self.number = -1
}
func getReason() -> String {
guard number >= 0 else { return "?" }
guard let reasonString = gai_strerror(number) else { return "?" }
let reason = String(validatingUTF8: reasonString) ?? "?"
return reason
}
public var description: String {
return "Socket failed with code \(self.number) (\"\(ErrorLookUpTable.getCorrespondingErrorString(errorCode: Int(self.number)))\") [\(self.type)] \"\(getReason())\""
}
}
public struct ErrorLookUpTable {
public static func getCorrespondingErrorString(errorCode: Int) -> String {
guard let description = errorDescriptions[errorCode] else { return "?" }
return description
}
public static let interruptedSystemCall: Int32 = EINTR
static let errorDescriptions = [
0: "Success",
1: "Operation not permitted",
2: "No such file or directory",
3: "No such process",
4: "Interrupted system call",
5: "Input/output error",
6: "No such device or address",
7: "Argument list too long",
8: "Exec format error",
9: "Bad file descriptor",
10: "No child processes",
11: "Resource temporarily unavailable",
12: "Cannot allocate memory",
13: "Permission denied",
14: "Bad address",
15: "Block device required",
16: "Device or resource busy",
17: "File exists",
18: "Invalid cross-device link",
19: "No such device",
20: "Not a directory",
21: "Is a directory",
22: "Invalid argument",
23: "Too many open files in system",
24: "Too many open files",
25: "Inappropriate ioctl for device",
26: "Text file busy",
27: "File too large",
28: "No space left on device",
29: "Illegal seek",
30: "Read-only file system",
31: "Too many links",
32: "Broken pipe",
33: "Numerical argument out of domain",
34: "Numerical result out of range",
35: "Resource deadlock avoided",
36: "File name too long",
37: "No locks available",
38: "Function not implemented",
39: "Directory not empty",
40: "Too many levels of symbolic links",
41: "Unknown error 41",
42: "No message of desired type",
43: "Identifier removed",
44: "Channel number out of range",
45: "Level 2 not synchronized",
46: "Level 3 halted",
47: "Level 3 reset",
48: "Link number out of range",
49: "Protocol driver not attached",
50: "No CSI structure available",
51: "Level 2 halted",
52: "Invalid exchange",
53: "Invalid request descriptor",
54: "Exchange full",
55: "No anode",
56: "Invalid request code",
57: "Invalid slot",
58: "Unknown error 58",
59: "Bad font file format",
60: "Device not a stream",
61: "No data available",
62: "Timer expired",
63: "Out of streams resources",
64: "Machine is not on the network",
65: "Package not installed",
66: "Object is remote",
67: "Link has been severed",
68: "Advertise error",
69: "Srmount error",
70: "Communication error on send",
71: "Protocol error",
72: "Multihop attempted",
73: "RFS specific error",
74: "Bad message",
75: "Value too large for defined data type",
76: "Name not unique on network",
77: "File descriptor in bad state",
78: "Remote address changed",
79: "Can not access a needed shared library",
80: "Accessing a corrupted shared library",
81: ".lib section in a.out corrupted",
82: "Attempting to link in too many shared libraries",
83: "Cannot exec a shared library directly",
84: "Invalid or incomplete multibyte or wide character",
85: "Interrupted system call should be restarted",
86: "Streams pipe error",
87: "Too many users",
88: "Socket operation on non-socket",
89: "Destination address required",
90: "Message too long",
91: "Protocol wrong type for socket",
92: "Protocol not available",
93: "Protocol not supported",
94: "Socket type not supported",
95: "Operation not supported",
96: "Protocol family not supported",
97: "Address family not supported by protocol",
98: "Address already in use",
99: "Cannot assign requested address",
100: "Network is down",
101: "Network is unreachable",
102: "Network dropped connection on reset",
103: "Software caused connection abort",
104: "Connection reset by peer",
105: "No buffer space available",
106: "Transport endpoint is already connected",
107: "Transport endpoint is not connected",
108: "Cannot send after transport endpoint shutdown",
109: "Too many references: cannot splice",
110: "Connection timed out",
111: "Connection refused",
112: "Host is down",
113: "No route to host",
114: "Operation already in progress",
115: "Operation now in progress",
116: "Stale NFS file handle",
117: "Structure needs cleaning",
118: "Not a XENIX named type file",
119: "No XENIX semaphores available",
120: "Is a named type file",
121: "Remote I/O error",
122: "Disk quota exceeded",
123: "No medium found",
124: "Wrong medium type"]
}