summaryrefslogtreecommitdiff
path: root/lib/strerrorname_np.c
blob: a39270060e4b5540ccd05e9c756ffa126a20f55a (plain)
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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
/* Name of system error code.
   Copyright (C) 2020-2021 Free Software Foundation, Inc.

   This file is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as
   published by the Free Software Foundation; either version 2.1 of the
   License, or (at your option) any later version.

   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

/* Written by Bruno Haible <bruno@clisp.org>, 2020.  */

#include <config.h>

/* Specification.  */
#include <string.h>

#include <errno.h>

const char *
strerrorname_np (int errnum)
{
  switch (errnum)
    {
    /* Error codes specified by ISO C.  */
    case EDOM:            return "EDOM";
    case EILSEQ:          return "EILSEQ";
    case ERANGE:          return "ERANGE";

    /* Error codes specified by POSIX.
       <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html>  */
    #if defined E2BIG
    case E2BIG:           return "E2BIG";
    #endif
    #if defined EACCES
    case EACCES:          return "EACCES";
    #endif
    #if defined EADDRINUSE
    case EADDRINUSE:      return "EADDRINUSE";
    #endif
    #if defined EADDRNOTAVAIL
    case EADDRNOTAVAIL:   return "EADDRNOTAVAIL";
    #endif
    #if defined EAFNOSUPPORT
    case EAFNOSUPPORT:    return "EAFNOSUPPORT";
    #endif
    #if defined EAGAIN
    case EAGAIN:          return "EAGAIN";
    #endif
    #if defined EALREADY
    case EALREADY:        return "EALREADY";
    #endif
    #if defined EBADF
    case EBADF:           return "EBADF";
    #endif
    #if defined EBADMSG
    case EBADMSG:         return "EBADMSG";
    #endif
    #if defined EBUSY
    case EBUSY:           return "EBUSY";
    #endif
    #if defined ECANCELED
    case ECANCELED:       return "ECANCELED";
    #endif
    #if defined ECHILD
    case ECHILD:          return "ECHILD";
    #endif
    #if defined ECONNABORTED
    case ECONNABORTED:    return "ECONNABORTED";
    #endif
    #if defined ECONNREFUSED
    case ECONNREFUSED:    return "ECONNREFUSED";
    #endif
    #if defined ECONNRESET
    case ECONNRESET:      return "ECONNRESET";
    #endif
    #if defined EDEADLK
    case EDEADLK:         return "EDEADLK";
    #endif
    #if defined EDESTADDRREQ
    case EDESTADDRREQ:    return "EDESTADDRREQ";
    #endif
    #if defined EDQUOT
    case EDQUOT:          return "EDQUOT";
    #endif
    #if defined EEXIST
    case EEXIST:          return "EEXIST";
    #endif
    #if defined EFAULT
    case EFAULT:          return "EFAULT";
    #endif
    #if defined EFBIG
    case EFBIG:           return "EFBIG";
    #endif
    #if defined EHOSTUNREACH
    case EHOSTUNREACH:    return "EHOSTUNREACH";
    #endif
    #if defined EIDRM
    case EIDRM:           return "EIDRM";
    #endif
    #if defined EINPROGRESS
    case EINPROGRESS:     return "EINPROGRESS";
    #endif
    #if defined EINTR
    case EINTR:           return "EINTR";
    #endif
    #if defined EINVAL
    case EINVAL:          return "EINVAL";
    #endif
    #if defined EIO
    case EIO:             return "EIO";
    #endif
    #if defined EISCONN
    case EISCONN:         return "EISCONN";
    #endif
    #if defined EISDIR
    case EISDIR:          return "EISDIR";
    #endif
    #if defined ELOOP
    case ELOOP:           return "ELOOP";
    #endif
    #if defined EMFILE
    case EMFILE:          return "EMFILE";
    #endif
    #if defined EMLINK
    case EMLINK:          return "EMLINK";
    #endif
    #if defined EMSGSIZE
    case EMSGSIZE:        return "EMSGSIZE";
    #endif
    #if defined EMULTIHOP
    case EMULTIHOP:       return "EMULTIHOP";
    #endif
    #if defined ENAMETOOLONG
    case ENAMETOOLONG:    return "ENAMETOOLONG";
    #endif
    #if defined ENETDOWN
    case ENETDOWN:        return "ENETDOWN";
    #endif
    #if defined ENETRESET
    case ENETRESET:       return "ENETRESET";
    #endif
    #if defined ENETUNREACH
    case ENETUNREACH:     return "ENETUNREACH";
    #endif
    #if defined ENFILE
    case ENFILE:          return "ENFILE";
    #endif
    #if defined ENOBUFS
    case ENOBUFS:         return "ENOBUFS";
    #endif
    #if defined ENODATA
    case ENODATA:         return "ENODATA";
    #endif
    #if defined ENODEV
    case ENODEV:          return "ENODEV";
    #endif
    #if defined ENOENT
    case ENOENT:          return "ENOENT";
    #endif
    #if defined ENOEXEC
    case ENOEXEC:         return "ENOEXEC";
    #endif
    #if defined ENOLCK
    case ENOLCK:          return "ENOLCK";
    #endif
    #if defined ENOLINK
    case ENOLINK:         return "ENOLINK";
    #endif
    #if defined ENOMEM
    case ENOMEM:          return "ENOMEM";
    #endif
    #if defined ENOMSG
    case ENOMSG:          return "ENOMSG";
    #endif
    #if defined ENOPROTOOPT
    case ENOPROTOOPT:     return "ENOPROTOOPT";
    #endif
    #if defined ENOSPC
    case ENOSPC:          return "ENOSPC";
    #endif
    #if defined ENOSR
    case ENOSR:           return "ENOSR";
    #endif
    #if defined ENOSTR
    case ENOSTR:          return "ENOSTR";
    #endif
    #if defined ENOSYS
    case ENOSYS:          return "ENOSYS";
    #endif
    #if defined ENOTCONN
    case ENOTCONN:        return "ENOTCONN";
    #endif
    #if defined ENOTDIR
    case ENOTDIR:         return "ENOTDIR";
    #endif
    #if defined ENOTEMPTY && ENOTEMPTY != EEXIST
    case ENOTEMPTY:       return "ENOTEMPTY";
    #endif
    #if defined ENOTRECOVERABLE
    case ENOTRECOVERABLE: return "ENOTRECOVERABLE";
    #endif
    #if defined ENOTSOCK
    case ENOTSOCK:        return "ENOTSOCK";
    #endif
    #if defined ENOTSUP && ENOTSUP != EOPNOTSUPP
    case ENOTSUP:         return "ENOTSUP";
    #endif
    #if defined ENOTTY
    case ENOTTY:          return "ENOTTY";
    #endif
    #if defined ENXIO
    case ENXIO:           return "ENXIO";
    #endif
    #if defined EOPNOTSUPP
    case EOPNOTSUPP:      return "EOPNOTSUPP";
    #endif
    #if defined EOVERFLOW
    case EOVERFLOW:       return "EOVERFLOW";
    #endif
    #if defined EOWNERDEAD
    case EOWNERDEAD:      return "EOWNERDEAD";
    #endif
    #if defined EPERM
    case EPERM:           return "EPERM";
    #endif
    #if defined EPIPE
    case EPIPE:           return "EPIPE";
    #endif
    #if defined EPROTO
    case EPROTO:          return "EPROTO";
    #endif
    #if defined EPROTONOSUPPORT
    case EPROTONOSUPPORT: return "EPROTONOSUPPORT";
    #endif
    #if defined EPROTOTYPE
    case EPROTOTYPE:      return "EPROTOTYPE";
    #endif
    #if defined EROFS
    case EROFS:           return "EROFS";
    #endif
    #if defined ESPIPE
    case ESPIPE:          return "ESPIPE";
    #endif
    #if defined ESRCH
    case ESRCH:           return "ESRCH";
    #endif
    #if defined ESTALE
    case ESTALE:          return "ESTALE";
    #endif
    #if defined ETIME
    case ETIME:           return "ETIME";
    #endif
    #if defined ETIMEDOUT
    case ETIMEDOUT:       return "ETIMEDOUT";
    #endif
    #if defined ETXTBSY
    case ETXTBSY:         return "ETXTBSY";
    #endif
    #if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
    case EWOULDBLOCK:     return "EWOULDBLOCK";
    #endif
    #if defined EXDEV
    case EXDEV:           return "EXDEV";
    #endif

    /* Other error codes on other systems.  */
    /* Solaris */
    #if defined EADI
    case EADI:            return "EADI";
    #endif
    /* Linux, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EADV
    case EADV:            return "EADV";
    #endif
    /* OSF/1 */
    #if defined EAIO
    case EAIO:            return "EAIO";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix */
    #if defined EAUTH
    case EAUTH:           return "EAUTH";
    #endif
    /* GNU/Hurd */
    #if defined EBACKGROUND
    case EBACKGROUND:     return "EBACKGROUND";
    #endif
    /* Mac OS X */
    #if defined EBADARCH
    case EBADARCH:        return "EBADARCH";
    #endif
    /* Minix */
    #if defined EBADCALL
    case EBADCALL:        return "EBADCALL";
    #endif
    /* Minix */
    #if defined EBADCPU
    case EBADCPU:         return "EBADCPU";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBADE
    case EBADE:           return "EBADE";
    #endif
    /* Minix */
    #if defined EBADEPT
    case EBADEPT:         return "EBADEPT";
    #endif
    /* Mac OS X */
    #if defined EBADEXEC
    case EBADEXEC:        return "EBADEXEC";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBADFD
    case EBADFD:          return "EBADFD";
    #endif
    /* IRIX */
    #if defined EBADFILT
    case EBADFILT:        return "EBADFILT";
    #endif
    /* Minix */
    #if defined EBADIOCTL
    case EBADIOCTL:       return "EBADIOCTL";
    #endif
    /* Mac OS X */
    #if defined EBADMACHO
    case EBADMACHO:       return "EBADMACHO";
    #endif
    /* Minix */
    #if defined EBADMODE
    case EBADMODE:        return "EBADMODE";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBADR
    case EBADR:           return "EBADR";
    #endif
    /* Minix */
    #if defined EBADREQUEST
    case EBADREQUEST:     return "EBADREQUEST";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix */
    #if defined EBADRPC
    case EBADRPC:         return "EBADRPC";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBADRQC
    case EBADRQC:         return "EBADRQC";
    #endif
    /* IRIX */
    #if defined EBADRSPEC
    case EBADRSPEC:       return "EBADRSPEC";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBADSLT
    case EBADSLT:         return "EBADSLT";
    #endif
    /* IRIX */
    #if defined EBADTSPEC
    case EBADTSPEC:       return "EBADTSPEC";
    #endif
    /* HP-UX */
    #if defined EBADVER
    case EBADVER:         return "EBADVER";
    #endif
    /* IRIX */
    #if defined EBDHDL
    case EBDHDL:          return "EBDHDL";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EBFONT
    case EBFONT:          return "EBFONT";
    #endif
    /* IRIX */
    #if defined EBUFSIZE
    case EBUFSIZE:        return "EBUFSIZE";
    #endif
    /* Minix */
    #if defined ECALLDENIED
    case ECALLDENIED:     return "ECALLDENIED";
    #endif
    /* IRIX */
    #if defined ECANTEXTENT
    case ECANTEXTENT:     return "ECANTEXTENT";
    #endif
    /* FreeBSD */
    #if defined ECAPMODE
    case ECAPMODE:        return "ECAPMODE";
    #endif
    /* Cygwin */
    #if defined ECASECLASH
    case ECASECLASH:      return "ECASECLASH";
    #endif
    /* IRIX */
    #if defined ECELLDOWN
    case ECELLDOWN:       return "ECELLDOWN";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ECHRNG
    case ECHRNG:          return "ECHRNG";
    #endif
    /* IRIX */
    #if defined ECKPT
    case ECKPT:           return "ECKPT";
    #endif
    /* IRIX */
    #if defined ECLOCKCPU
    case ECLOCKCPU:       return "ECLOCKCPU";
    #endif
    /* OSF/1 */
    #if defined ECLONEME && ECLONEME != ERESTART
    case ECLONEME:        return "ECLONEME";
    #endif
    /* Linux, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ECOMM
    case ECOMM:           return "ECOMM";
    #endif
    /* HP-UX */
    #if defined ECONFIG
    case ECONFIG:         return "ECONFIG";
    #endif
    /* IRIX */
    #if defined ECONTROLLER
    case ECONTROLLER:     return "ECONTROLLER";
    #endif
    /* AIX */
    #if defined ECORRUPT
    case ECORRUPT:        return "ECORRUPT";
    #endif
    /* GNU/Hurd */
    #if defined ED
    case ED:              return "ED";
    #endif
    /* Minix */
    #if defined EDEADEPT
    case EDEADEPT:        return "EDEADEPT";
    #endif
    /* IRIX, Solaris, Cygwin */
    #if defined EDEADLOCK && EDEADLOCK != EDEADLK
    case EDEADLOCK:       return "EDEADLOCK";
    #endif
    /* Minix */
    #if defined EDEADSRCDST
    case EDEADSRCDST:     return "EDEADSRCDST";
    #endif
    /* IRIX */
    #if defined EDELAY
    case EDELAY:          return "EDELAY";
    #endif
    /* IRIX */
    #if defined EDESTROYED
    case EDESTROYED:      return "EDESTROYED";
    #endif
    /* Mac OS X */
    #if defined EDEVERR
    case EDEVERR:         return "EDEVERR";
    #endif
    /* GNU/Hurd */
    #if defined EDIED
    case EDIED:           return "EDIED";
    #endif
    /* IRIX */
    #if defined EDIRCORRUPTED
    case EDIRCORRUPTED:   return "EDIRCORRUPTED";
    #endif
    /* FreeBSD */
    #if defined EDIRIOCTL
    case EDIRIOCTL:       return "EDIRIOCTL";
    #endif
    /* OSF/1 */
    #if defined EDIRTY
    case EDIRTY:          return "EDIRTY";
    #endif
    /* IRIX */
    #if defined EDISJOINT
    case EDISJOINT:       return "EDISJOINT";
    #endif
    /* AIX */
    #if defined EDIST
    case EDIST:           return "EDIST";
    #endif
    /* Minix */
    #if defined EDONTREPLY
    case EDONTREPLY:      return "EDONTREPLY";
    #endif
    /* FreeBSD */
    #if defined EDOOFUS
    case EDOOFUS:         return "EDOOFUS";
    #endif
    /* Linux, HP-UX, Cygwin */
    #if defined EDOTDOT
    case EDOTDOT:         return "EDOTDOT";
    #endif
    /* OSF/1 */
    #if defined EDUPPKG
    case EDUPPKG:         return "EDUPPKG";
    #endif
    /* GNU/Hurd */
    #if defined ED_ALREADY_OPEN
    case ED_ALREADY_OPEN: return "ED_ALREADY_OPEN";
    #endif
    /* GNU/Hurd */
    #if defined ED_DEVICE_DOWN
    case ED_DEVICE_DOWN:  return "ED_DEVICE_DOWN";
    #endif
    /* GNU/Hurd */
    #if defined ED_INVALID_OPERATION
    case ED_INVALID_OPERATION:return "ED_INVALID_OPERATION";
    #endif
    /* GNU/Hurd */
    #if defined ED_INVALID_RECNUM
    case ED_INVALID_RECNUM:return "ED_INVALID_RECNUM";
    #endif
    /* GNU/Hurd */
    #if defined ED_INVALID_SIZE
    case ED_INVALID_SIZE: return "ED_INVALID_SIZE";
    #endif
    /* GNU/Hurd */
    #if defined ED_IO_ERROR
    case ED_IO_ERROR:     return "ED_IO_ERROR";
    #endif
    /* GNU/Hurd */
    #if defined ED_NO_MEMORY
    case ED_NO_MEMORY:    return "ED_NO_MEMORY";
    #endif
    /* GNU/Hurd */
    #if defined ED_NO_SUCH_DEVICE
    case ED_NO_SUCH_DEVICE:return "ED_NO_SUCH_DEVICE";
    #endif
    /* GNU/Hurd */
    #if defined ED_READ_ONLY
    case ED_READ_ONLY:    return "ED_READ_ONLY";
    #endif
    /* GNU/Hurd */
    #if defined ED_WOULD_BLOCK
    case ED_WOULD_BLOCK:  return "ED_WOULD_BLOCK";
    #endif
    /* IRIX */
    #if defined EEMPTY
    case EEMPTY:          return "EEMPTY";
    #endif
    /* OSF/1 */
    #if defined EEMULATE
    case EEMULATE:        return "EEMULATE";
    #endif
    /* IRIX */
    #if defined EENDOFMINOR
    case EENDOFMINOR:     return "EENDOFMINOR";
    #endif
    /* IRIX */
    #if defined EENQUEUED
    case EENQUEUED:       return "EENQUEUED";
    #endif
    /* OSF/1 */
    #if defined EFAIL
    case EFAIL:           return "EFAIL";
    #endif
    /* AIX */
    #if defined EFORMAT
    case EFORMAT:         return "EFORMAT";
    #endif
    /* Haiku */
    #if defined EFPOS
    case EFPOS:           return "EFPOS";
    #endif
    /* IRIX */
    #if defined EFSCORRUPTED
    case EFSCORRUPTED:    return "EFSCORRUPTED";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix, Cygwin */
    #if defined EFTYPE
    case EFTYPE:          return "EFTYPE";
    #endif
    /* Minix */
    #if defined EGENERIC
    case EGENERIC:        return "EGENERIC";
    #endif
    /* GNU/Hurd */
    #if defined EGRATUITOUS
    case EGRATUITOUS:     return "EGRATUITOUS";
    #endif
    /* GNU/Hurd */
    #if defined EGREGIOUS
    case EGREGIOUS:       return "EGREGIOUS";
    #endif
    /* IRIX */
    #if defined EGROUPLOOP
    case EGROUPLOOP:      return "EGROUPLOOP";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Haiku, Cygwin */
    #if defined EHOSTDOWN
    case EHOSTDOWN:       return "EHOSTDOWN";
    #endif
    /* Linux */
    #if defined EHWPOISON
    case EHWPOISON:       return "EHWPOISON";
    #endif
    /* GNU/Hurd */
    #if defined EIEIO
    case EIEIO:           return "EIEIO";
    #endif
    /* IRIX */
    #if defined EINIT
    case EINIT:           return "EINIT";
    #endif
    /* OSF/1 */
    #if defined EINPROG
    case EINPROG:         return "EINPROG";
    #endif
    /* IRIX */
    #if defined EINVALMODE
    case EINVALMODE:      return "EINVALMODE";
    #endif
    /* IRIX */
    #if defined EINVALSTATE
    case EINVALSTATE:     return "EINVALSTATE";
    #endif
    /* IRIX */
    #if defined EINVALTIME
    case EINVALTIME:      return "EINVALTIME";
    #endif
    /* IRIX */
    #if defined EIORESID
    case EIORESID:        return "EIORESID";
    #endif
    /* OpenBSD */
    #if defined EIPSEC
    case EIPSEC:          return "EIPSEC";
    #endif
    /* Linux, IRIX */
    #if defined EISNAM
    case EISNAM:          return "EISNAM";
    #endif
    /* IRIX */
    #if defined EJOINED
    case EJOINED:         return "EJOINED";
    #endif
    /* FreeBSD, OSF/1 */
    #if defined EJUSTRETURN
    case EJUSTRETURN:     return "EJUSTRETURN";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_ABORTED
    case EKERN_ABORTED:   return "EKERN_ABORTED";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_FAILURE
    case EKERN_FAILURE:   return "EKERN_FAILURE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INTERRUPTED
    case EKERN_INTERRUPTED:return "EKERN_INTERRUPTED";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_ADDRESS
    case EKERN_INVALID_ADDRESS:return "EKERN_INVALID_ADDRESS";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_ARGUMENT
    case EKERN_INVALID_ARGUMENT:return "EKERN_INVALID_ARGUMENT";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_CAPABILITY
    case EKERN_INVALID_CAPABILITY:return "EKERN_INVALID_CAPABILITY";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_HOST
    case EKERN_INVALID_HOST:return "EKERN_INVALID_HOST";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_NAME
    case EKERN_INVALID_NAME:return "EKERN_INVALID_NAME";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_RIGHT
    case EKERN_INVALID_RIGHT:return "EKERN_INVALID_RIGHT";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_TASK
    case EKERN_INVALID_TASK:return "EKERN_INVALID_TASK";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_INVALID_VALUE
    case EKERN_INVALID_VALUE:return "EKERN_INVALID_VALUE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_MEMORY_ERROR
    case EKERN_MEMORY_ERROR:return "EKERN_MEMORY_ERROR";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_MEMORY_FAILURE
    case EKERN_MEMORY_FAILURE:return "EKERN_MEMORY_FAILURE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_MEMORY_PRESENT
    case EKERN_MEMORY_PRESENT:return "EKERN_MEMORY_PRESENT";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_NAME_EXISTS
    case EKERN_NAME_EXISTS:return "EKERN_NAME_EXISTS";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_NOT_IN_SET
    case EKERN_NOT_IN_SET:return "EKERN_NOT_IN_SET";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_NOT_RECEIVER
    case EKERN_NOT_RECEIVER:return "EKERN_NOT_RECEIVER";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_NO_ACCESS
    case EKERN_NO_ACCESS: return "EKERN_NO_ACCESS";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_NO_SPACE
    case EKERN_NO_SPACE:  return "EKERN_NO_SPACE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_PROTECTION_FAILURE
    case EKERN_PROTECTION_FAILURE:return "EKERN_PROTECTION_FAILURE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_RESOURCE_SHORTAGE
    case EKERN_RESOURCE_SHORTAGE:return "EKERN_RESOURCE_SHORTAGE";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_RIGHT_EXISTS
    case EKERN_RIGHT_EXISTS:return "EKERN_RIGHT_EXISTS";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_TERMINATED
    case EKERN_TERMINATED:return "EKERN_TERMINATED";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_TIMEDOUT
    case EKERN_TIMEDOUT:  return "EKERN_TIMEDOUT";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_UREFS_OVERFLOW
    case EKERN_UREFS_OVERFLOW:return "EKERN_UREFS_OVERFLOW";
    #endif
    /* GNU/Hurd */
    #if defined EKERN_WRITE_PROTECTION_FAILURE
    case EKERN_WRITE_PROTECTION_FAILURE:return "EKERN_WRITE_PROTECTION_FAILURE";
    #endif
    /* Linux */
    #if defined EKEYEXPIRED
    case EKEYEXPIRED:     return "EKEYEXPIRED";
    #endif
    /* Linux */
    #if defined EKEYREJECTED
    case EKEYREJECTED:    return "EKEYREJECTED";
    #endif
    /* Linux */
    #if defined EKEYREVOKED
    case EKEYREVOKED:     return "EKEYREVOKED";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EL2HLT
    case EL2HLT:          return "EL2HLT";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EL2NSYNC
    case EL2NSYNC:        return "EL2NSYNC";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EL3HLT
    case EL3HLT:          return "EL3HLT";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EL3RST
    case EL3RST:          return "EL3RST";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix */
    #if defined ELAST && 0
    case ELAST:           return "ELAST";
    #endif
    /* Cygwin */
    #if defined ELBIN
    case ELBIN:           return "ELBIN";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ELIBACC
    case ELIBACC:         return "ELIBACC";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ELIBBAD
    case ELIBBAD:         return "ELIBBAD";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ELIBEXEC
    case ELIBEXEC:        return "ELIBEXEC";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ELIBMAX
    case ELIBMAX:         return "ELIBMAX";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ELIBSCN
    case ELIBSCN:         return "ELIBSCN";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ELNRNG
    case ELNRNG:          return "ELNRNG";
    #endif
    /* Minix */
    #if defined ELOCKED
    case ELOCKED:         return "ELOCKED";
    #endif
    /* Solaris */
    #if defined ELOCKUNMAPPED
    case ELOCKUNMAPPED:   return "ELOCKUNMAPPED";
    #endif
    /* IRIX */
    #if defined ELOGINLIM
    case ELOGINLIM:       return "ELOGINLIM";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_BODY_ERROR
    case EMACH_RCV_BODY_ERROR:return "EMACH_RCV_BODY_ERROR";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_HEADER_ERROR
    case EMACH_RCV_HEADER_ERROR:return "EMACH_RCV_HEADER_ERROR";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_INTERRUPTED
    case EMACH_RCV_INTERRUPTED:return "EMACH_RCV_INTERRUPTED";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_INVALID_DATA
    case EMACH_RCV_INVALID_DATA:return "EMACH_RCV_INVALID_DATA";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_INVALID_NAME
    case EMACH_RCV_INVALID_NAME:return "EMACH_RCV_INVALID_NAME";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_INVALID_NOTIFY
    case EMACH_RCV_INVALID_NOTIFY:return "EMACH_RCV_INVALID_NOTIFY";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_IN_PROGRESS
    case EMACH_RCV_IN_PROGRESS:return "EMACH_RCV_IN_PROGRESS";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_IN_SET
    case EMACH_RCV_IN_SET:return "EMACH_RCV_IN_SET";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_PORT_CHANGED
    case EMACH_RCV_PORT_CHANGED:return "EMACH_RCV_PORT_CHANGED";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_PORT_DIED
    case EMACH_RCV_PORT_DIED:return "EMACH_RCV_PORT_DIED";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_TIMED_OUT
    case EMACH_RCV_TIMED_OUT:return "EMACH_RCV_TIMED_OUT";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_RCV_TOO_LARGE
    case EMACH_RCV_TOO_LARGE:return "EMACH_RCV_TOO_LARGE";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INTERRUPTED
    case EMACH_SEND_INTERRUPTED:return "EMACH_SEND_INTERRUPTED";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_DATA
    case EMACH_SEND_INVALID_DATA:return "EMACH_SEND_INVALID_DATA";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_DEST
    case EMACH_SEND_INVALID_DEST:return "EMACH_SEND_INVALID_DEST";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_HEADER
    case EMACH_SEND_INVALID_HEADER:return "EMACH_SEND_INVALID_HEADER";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_MEMORY
    case EMACH_SEND_INVALID_MEMORY:return "EMACH_SEND_INVALID_MEMORY";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_NOTIFY
    case EMACH_SEND_INVALID_NOTIFY:return "EMACH_SEND_INVALID_NOTIFY";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_REPLY
    case EMACH_SEND_INVALID_REPLY:return "EMACH_SEND_INVALID_REPLY";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_RIGHT
    case EMACH_SEND_INVALID_RIGHT:return "EMACH_SEND_INVALID_RIGHT";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_INVALID_TYPE
    case EMACH_SEND_INVALID_TYPE:return "EMACH_SEND_INVALID_TYPE";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_IN_PROGRESS
    case EMACH_SEND_IN_PROGRESS:return "EMACH_SEND_IN_PROGRESS";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_MSG_TOO_SMALL
    case EMACH_SEND_MSG_TOO_SMALL:return "EMACH_SEND_MSG_TOO_SMALL";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_NOTIFY_IN_PROGRESS
    case EMACH_SEND_NOTIFY_IN_PROGRESS:return "EMACH_SEND_NOTIFY_IN_PROGRESS";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_NO_BUFFER
    case EMACH_SEND_NO_BUFFER:return "EMACH_SEND_NO_BUFFER";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_NO_NOTIFY
    case EMACH_SEND_NO_NOTIFY:return "EMACH_SEND_NO_NOTIFY";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_TIMED_OUT
    case EMACH_SEND_TIMED_OUT:return "EMACH_SEND_TIMED_OUT";
    #endif
    /* GNU/Hurd */
    #if defined EMACH_SEND_WILL_NOTIFY
    case EMACH_SEND_WILL_NOTIFY:return "EMACH_SEND_WILL_NOTIFY";
    #endif
    /* AIX, OSF/1 */
    #if defined EMEDIA
    case EMEDIA:          return "EMEDIA";
    #endif
    /* Linux, OpenBSD */
    #if defined EMEDIUMTYPE
    case EMEDIUMTYPE:     return "EMEDIUMTYPE";
    #endif
    /* IRIX */
    #if defined EMEMRETRY
    case EMEMRETRY:       return "EMEMRETRY";
    #endif
    /* IRIX */
    #if defined EMIGRATED
    case EMIGRATED:       return "EMIGRATED";
    #endif
    /* IRIX */
    #if defined EMIGRATING
    case EMIGRATING:      return "EMIGRATING";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_ARRAY_TOO_LARGE
    case EMIG_ARRAY_TOO_LARGE:return "EMIG_ARRAY_TOO_LARGE";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_BAD_ARGUMENTS
    case EMIG_BAD_ARGUMENTS:return "EMIG_BAD_ARGUMENTS";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_BAD_ID
    case EMIG_BAD_ID:     return "EMIG_BAD_ID";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_DESTROY_REQUEST
    case EMIG_DESTROY_REQUEST:return "EMIG_DESTROY_REQUEST";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_EXCEPTION
    case EMIG_EXCEPTION:  return "EMIG_EXCEPTION";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_NO_REPLY
    case EMIG_NO_REPLY:   return "EMIG_NO_REPLY";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_REMOTE_ERROR
    case EMIG_REMOTE_ERROR:return "EMIG_REMOTE_ERROR";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_REPLY_MISMATCH
    case EMIG_REPLY_MISMATCH:return "EMIG_REPLY_MISMATCH";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_SERVER_DIED
    case EMIG_SERVER_DIED:return "EMIG_SERVER_DIED";
    #endif
    /* GNU/Hurd */
    #if defined EMIG_TYPE_ERROR
    case EMIG_TYPE_ERROR: return "EMIG_TYPE_ERROR";
    #endif
    /* OSF/1 */
    #if defined EMTIMERS
    case EMTIMERS:        return "EMTIMERS";
    #endif
    /* IRIX */
    #if defined EMUSTRUN
    case EMUSTRUN:        return "EMUSTRUN";
    #endif
    /* Linux, IRIX */
    #if defined ENAVAIL
    case ENAVAIL:         return "ENAVAIL";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix */
    #if defined ENEEDAUTH
    case ENEEDAUTH:       return "ENEEDAUTH";
    #endif
    /* IRIX */
    #if defined ENFSREMOTE
    case ENFSREMOTE:      return "ENFSREMOTE";
    #endif
    /* Cygwin */
    #if defined ENMFILE
    case ENMFILE:         return "ENMFILE";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ENOANO
    case ENOANO:          return "ENOANO";
    #endif
    /* IRIX */
    #if defined ENOATTACH
    case ENOATTACH:       return "ENOATTACH";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, IRIX, Minix */
    #if defined ENOATTR
    case ENOATTR:         return "ENOATTR";
    #endif
    /* IRIX */
    #if defined ENOBWD
    case ENOBWD:          return "ENOBWD";
    #endif
    /* MirBSD */
    #if defined ENOCOFFEE
    case ENOCOFFEE:       return "ENOCOFFEE";
    #endif
    /* Minix */
    #if defined ENOCONN
    case ENOCONN:         return "ENOCONN";
    #endif
    /* AIX */
    #if defined ENOCONNECT
    case ENOCONNECT:      return "ENOCONNECT";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ENOCSI
    case ENOCSI:          return "ENOCSI";
    #endif
    /* IRIX */
    #if defined ENOEXIST
    case ENOEXIST:        return "ENOEXIST";
    #endif
    /* IRIX */
    #if defined ENOINTRGROUP
    case ENOINTRGROUP:    return "ENOINTRGROUP";
    #endif
    /* FreeBSD */
    #if defined ENOIOCTL
    case ENOIOCTL:        return "ENOIOCTL";
    #endif
    /* Linux */
    #if defined ENOKEY
    case ENOKEY:          return "ENOKEY";
    #endif
    /* IRIX */
    #if defined ENOLIMFILE
    case ENOLIMFILE:      return "ENOLIMFILE";
    #endif
    /* HP-UX */
    #if defined ENOLOAD
    case ENOLOAD:         return "ENOLOAD";
    #endif
    /* IRIX */
    #if defined ENOLOGIN
    case ENOLOGIN:        return "ENOLOGIN";
    #endif
    /* HP-UX */
    #if defined ENOMATCH
    case ENOMATCH:        return "ENOMATCH";
    #endif
    /* Linux, OpenBSD, Cygwin */
    #if defined ENOMEDIUM
    case ENOMEDIUM:       return "ENOMEDIUM";
    #endif
    /* IRIX */
    #if defined ENOMESSAGE
    case ENOMESSAGE:      return "ENOMESSAGE";
    #endif
    /* Linux, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ENONET
    case ENONET:          return "ENONET";
    #endif
    /* Linux, HP-UX, IRIX, OSF/1, Solaris, Cygwin */
    #if defined ENOPKG
    case ENOPKG:          return "ENOPKG";
    #endif
    /* Mac OS X */
    #if defined ENOPOLICY
    case ENOPOLICY:       return "ENOPOLICY";
    #endif
    /* IRIX */
    #if defined ENOPROC
    case ENOPROC:         return "ENOPROC";
    #endif
    /* HP-UX */
    #if defined ENOREG
    case ENOREG:          return "ENOREG";
    #endif
    /* IRIX */
    #if defined ENOSERVICE
    case ENOSERVICE:      return "ENOSERVICE";
    #endif
    /* Cygwin */
    #if defined ENOSHARE
    case ENOSHARE:        return "ENOSHARE";
    #endif
    /* HP-UX, OSF/1 */
    #if defined ENOSYM
    case ENOSYM:          return "ENOSYM";
    #endif
    /* Solaris */
    #if defined ENOTACTIVE
    case ENOTACTIVE:      return "ENOTACTIVE";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Cygwin */
    #if defined ENOTBLK
    case ENOTBLK:         return "ENOTBLK";
    #endif
    /* FreeBSD */
    #if defined ENOTCAPABLE
    case ENOTCAPABLE:     return "ENOTCAPABLE";
    #endif
    /* IRIX */
    #if defined ENOTCONTROLLER
    case ENOTCONTROLLER:  return "ENOTCONTROLLER";
    #endif
    /* IRIX */
    #if defined ENOTENQUEUED
    case ENOTENQUEUED:    return "ENOTENQUEUED";
    #endif
    /* IRIX */
    #if defined ENOTJOINED
    case ENOTJOINED:      return "ENOTJOINED";
    #endif
    /* Linux, IRIX */
    #if defined ENOTNAM
    case ENOTNAM:         return "ENOTNAM";
    #endif
    /* AIX, Minix */
    #if defined ENOTREADY
    case ENOTREADY:       return "ENOTREADY";
    #endif
    /* AIX */
    #if defined ENOTRUST
    case ENOTRUST:        return "ENOTRUST";
    #endif
    /* IRIX */
    #if defined ENOTSTOPPED
    case ENOTSTOPPED:     return "ENOTSTOPPED";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ENOTUNIQ
    case ENOTUNIQ:        return "ENOTUNIQ";
    #endif
    /* HP-UX */
    #if defined ENOUNLD
    case ENOUNLD:         return "ENOUNLD";
    #endif
    /* HP-UX */
    #if defined ENOUNREG
    case ENOUNREG:        return "ENOUNREG";
    #endif
    /* Minix */
    #if defined ENOURG
    case ENOURG:          return "ENOURG";
    #endif
    /* native Windows */
    #if defined EOTHER
    case EOTHER:          return "EOTHER";
    #endif
    /* Minix */
    #if defined EPACKSIZE
    case EPACKSIZE:       return "EPACKSIZE";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Haiku, Cygwin */
    #if defined EPFNOSUPPORT
    case EPFNOSUPPORT:    return "EPFNOSUPPORT";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, IRIX, OSF/1, Minix, Cygwin */
    #if defined EPROCLIM
    case EPROCLIM:        return "EPROCLIM";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix */
    #if defined EPROCUNAVAIL
    case EPROCUNAVAIL:    return "EPROCUNAVAIL";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix */
    #if defined EPROGMISMATCH
    case EPROGMISMATCH:   return "EPROGMISMATCH";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix */
    #if defined EPROGUNAVAIL
    case EPROGUNAVAIL:    return "EPROGUNAVAIL";
    #endif
    /* Mac OS X */
    #if defined EPWROFF
    case EPWROFF:         return "EPWROFF";
    #endif
    /* Mac OS X */
    #if defined EQFULL
    case EQFULL:          return "EQFULL";
    #endif
    /* HP-UX */
    #if defined ERELOC
    case ERELOC:          return "ERELOC";
    #endif
    /* OSF/1 */
    #if defined ERELOCATED
    case ERELOCATED:      return "ERELOCATED";
    #endif
    /* FreeBSD */
    #if defined ERELOOKUP
    case ERELOOKUP:       return "ERELOOKUP";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EREMCHG
    case EREMCHG:         return "EREMCHG";
    #endif
    /* IRIX */
    #if defined EREMDEV
    case EREMDEV:         return "EREMDEV";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Haiku, Cygwin */
    #if defined EREMOTE
    case EREMOTE:         return "EREMOTE";
    #endif
    /* Linux, IRIX */
    #if defined EREMOTEIO
    case EREMOTEIO:       return "EREMOTEIO";
    #endif
    /* HP-UX */
    #if defined EREMOTERELEASE
    case EREMOTERELEASE:  return "EREMOTERELEASE";
    #endif
    /* Linux, FreeBSD, AIX, IRIX, OSF/1, Solaris, Minix */
    #if defined ERESTART
    case ERESTART:        return "ERESTART";
    #endif
    /* Linux */
    #if defined ERFKILL
    case ERFKILL:         return "ERFKILL";
    #endif
    /* Mac OS X, FreeBSD, NetBSD, OpenBSD, OSF/1, Minix */
    #if defined ERPCMISMATCH
    case ERPCMISMATCH:    return "ERPCMISMATCH";
    #endif
    /* AIX */
    #if defined ESAD
    case ESAD:            return "ESAD";
    #endif
    /* Mac OS X */
    #if defined ESHLIBVERS
    case ESHLIBVERS:      return "ESHLIBVERS";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Haiku, Cygwin */
    #if defined ESHUTDOWN
    case ESHUTDOWN:       return "ESHUTDOWN";
    #endif
    /* Haiku */
    #if defined ESIGPARM
    case ESIGPARM:        return "ESIGPARM";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Cygwin */
    #if defined ESOCKTNOSUPPORT
    case ESOCKTNOSUPPORT: return "ESOCKTNOSUPPORT";
    #endif
    /* AIX, OSF/1 */
    #if defined ESOFT
    case ESOFT:           return "ESOFT";
    #endif
    /* Linux, HP-UX, IRIX, Solaris, Cygwin */
    #if defined ESRMNT
    case ESRMNT:          return "ESRMNT";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined ESTRPIPE
    case ESTRPIPE:        return "ESTRPIPE";
    #endif
    /* OSF/1 */
    #if defined ESUCCESS
    case ESUCCESS:        return "ESUCCESS";
    #endif
    /* AIX */
    #if defined ESYSERROR
    case ESYSERROR:       return "ESYSERROR";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Cygwin */
    #if defined ETOOMANYREFS
    case ETOOMANYREFS:    return "ETOOMANYREFS";
    #endif
    /* Minix */
    #if defined ETRAPDENIED
    case ETRAPDENIED:     return "ETRAPDENIED";
    #endif
    /* Linux, IRIX */
    #if defined EUCLEAN
    case EUCLEAN:         return "EUCLEAN";
    #endif
    /* Linux, AIX, HP-UX, IRIX, Solaris, Cygwin */
    #if defined EUNATCH
    case EUNATCH:         return "EUNATCH";
    #endif
    /* Minix */
    #if defined EURG
    case EURG:            return "EURG";
    #endif
    /* Linux, Mac OS X, FreeBSD, NetBSD, OpenBSD, AIX, HP-UX, IRIX, OSF/1, Solaris, Minix, Cygwin */
    #if defined EUSERS
    case EUSERS:          return "EUSERS";
    #endif
    /* OSF/1 */
    #if defined EVERSION
    case EVERSION:        return "EVERSION";
    #endif
    /* IRIX */
    #if defined EWRONGFS
    case EWRONGFS:        return "EWRONGFS";
    #endif
    /* AIX */
    #if defined EWRPROTECT
    case EWRPROTECT:      return "EWRPROTECT";
    #endif
    /* Linux, IRIX, Solaris, Cygwin */
    #if defined EXFULL
    case EXFULL:          return "EXFULL";
    #endif

    default:
      return NULL;
    }
}