1 int
2 winerror_to_errno(int winerror)
3 {
4 // Unwrap FACILITY_WIN32 HRESULT errors.
5 if ((winerror & 0xFFFF0000) == 0x80070000) {
6 winerror &= 0x0000FFFF;
7 }
8
9 // Winsock error codes (10000-11999) are errno values.
10 if (winerror >= 10000 && winerror < 12000) {
11 switch (winerror) {
12 case WSAEINTR:
13 case WSAEBADF:
14 case WSAEACCES:
15 case WSAEFAULT:
16 case WSAEINVAL:
17 case WSAEMFILE:
18 // Winsock definitions of errno values. See WinSock2.h
19 return winerror - 10000;
20 default:
21 return winerror;
22 }
23 }
24
25 switch (winerror) {
26 case ERROR_FILE_NOT_FOUND: // 2
27 case ERROR_PATH_NOT_FOUND: // 3
28 case ERROR_INVALID_DRIVE: // 15
29 case ERROR_NO_MORE_FILES: // 18
30 case ERROR_BAD_NETPATH: // 53
31 case ERROR_BAD_NET_NAME: // 67
32 case ERROR_BAD_PATHNAME: // 161
33 case ERROR_FILENAME_EXCED_RANGE: // 206
34 return ENOENT;
35
36 case ERROR_BAD_ENVIRONMENT: // 10
37 return E2BIG;
38
39 case ERROR_BAD_FORMAT: // 11
40 case ERROR_INVALID_STARTING_CODESEG: // 188
41 case ERROR_INVALID_STACKSEG: // 189
42 case ERROR_INVALID_MODULETYPE: // 190
43 case ERROR_INVALID_EXE_SIGNATURE: // 191
44 case ERROR_EXE_MARKED_INVALID: // 192
45 case ERROR_BAD_EXE_FORMAT: // 193
46 case ERROR_ITERATED_DATA_EXCEEDS_64k: // 194
47 case ERROR_INVALID_MINALLOCSIZE: // 195
48 case ERROR_DYNLINK_FROM_INVALID_RING: // 196
49 case ERROR_IOPL_NOT_ENABLED: // 197
50 case ERROR_INVALID_SEGDPL: // 198
51 case ERROR_AUTODATASEG_EXCEEDS_64k: // 199
52 case ERROR_RING2SEG_MUST_BE_MOVABLE: // 200
53 case ERROR_RELOC_CHAIN_XEEDS_SEGLIM: // 201
54 case ERROR_INFLOOP_IN_RELOC_CHAIN: // 202
55 return ENOEXEC;
56
57 case ERROR_INVALID_HANDLE: // 6
58 case ERROR_INVALID_TARGET_HANDLE: // 114
59 case ERROR_DIRECT_ACCESS_HANDLE: // 130
60 return EBADF;
61
62 case ERROR_WAIT_NO_CHILDREN: // 128
63 case ERROR_CHILD_NOT_COMPLETE: // 129
64 return ECHILD;
65
66 case ERROR_NO_PROC_SLOTS: // 89
67 case ERROR_MAX_THRDS_REACHED: // 164
68 case ERROR_NESTING_NOT_ALLOWED: // 215
69 return EAGAIN;
70
71 case ERROR_ARENA_TRASHED: // 7
72 case ERROR_NOT_ENOUGH_MEMORY: // 8
73 case ERROR_INVALID_BLOCK: // 9
74 case ERROR_NOT_ENOUGH_QUOTA: // 1816
75 return ENOMEM;
76
77 case ERROR_ACCESS_DENIED: // 5
78 case ERROR_CURRENT_DIRECTORY: // 16
79 case ERROR_WRITE_PROTECT: // 19
80 case ERROR_BAD_UNIT: // 20
81 case ERROR_NOT_READY: // 21
82 case ERROR_BAD_COMMAND: // 22
83 case ERROR_CRC: // 23
84 case ERROR_BAD_LENGTH: // 24
85 case ERROR_SEEK: // 25
86 case ERROR_NOT_DOS_DISK: // 26
87 case ERROR_SECTOR_NOT_FOUND: // 27
88 case ERROR_OUT_OF_PAPER: // 28
89 case ERROR_WRITE_FAULT: // 29
90 case ERROR_READ_FAULT: // 30
91 case ERROR_GEN_FAILURE: // 31
92 case ERROR_SHARING_VIOLATION: // 32
93 case ERROR_LOCK_VIOLATION: // 33
94 case ERROR_WRONG_DISK: // 34
95 case ERROR_SHARING_BUFFER_EXCEEDED: // 36
96 case ERROR_NETWORK_ACCESS_DENIED: // 65
97 case ERROR_CANNOT_MAKE: // 82
98 case ERROR_FAIL_I24: // 83
99 case ERROR_DRIVE_LOCKED: // 108
100 case ERROR_SEEK_ON_DEVICE: // 132
101 case ERROR_NOT_LOCKED: // 158
102 case ERROR_LOCK_FAILED: // 167
103 case 35: // 35 (undefined)
104 return EACCES;
105
106 case ERROR_FILE_EXISTS: // 80
107 case ERROR_ALREADY_EXISTS: // 183
108 return EEXIST;
109
110 case ERROR_NOT_SAME_DEVICE: // 17
111 return EXDEV;
112
113 case ERROR_DIRECTORY: // 267 (bpo-12802)
114 return ENOTDIR;
115
116 case ERROR_TOO_MANY_OPEN_FILES: // 4
117 return EMFILE;
118
119 case ERROR_DISK_FULL: // 112
120 return ENOSPC;
121
122 case ERROR_BROKEN_PIPE: // 109
123 case ERROR_NO_DATA: // 232 (bpo-13063)
124 return EPIPE;
125
126 case ERROR_DIR_NOT_EMPTY: // 145
127 return ENOTEMPTY;
128
129 case ERROR_NO_UNICODE_TRANSLATION: // 1113
130 return EILSEQ;
131
132 case ERROR_INVALID_FUNCTION: // 1
133 case ERROR_INVALID_ACCESS: // 12
134 case ERROR_INVALID_DATA: // 13
135 case ERROR_INVALID_PARAMETER: // 87
136 case ERROR_NEGATIVE_SEEK: // 131
137 default:
138 return EINVAL;
139 }
140 }