summaryrefslogtreecommitdiffstats
path: root/libkdenetwork/libgpgme-copy/gpgme/gpgme.h
blob: b8aa9e291871cd1481fc5e0cdd34e57009e4dc4e (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
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
/* gpgme.h - Public interface to GnuPG Made Easy.
   Copyright (C) 2000 Werner Koch (dd9jn)
   Copyright (C) 2001, 2002, 2003, 2004, 2005 g10 Code GmbH

   This file is part of GPGME.
 
   GPGME 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.
   
   GPGME 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, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

#ifndef GPGME_H
#define GPGME_H

#ifdef __GNUC__
#define _GPGME_INLINE __inline__
#elif __STDC_VERSION__ >= 199901L
#define _GPGME_INLINE inline
#else
#define _GPGME_INLINE
#endif

/* Include stdio.h for the FILE type definition.  */
#include <stdio.h>

#ifdef _MSC_VER
  typedef long off_t;
  typedef long ssize_t;
#else
# include <sys/types.h>
#endif

#ifdef __cplusplus
extern "C" {
#if 0 /* just to make Emacs auto-indent happy */
}
#endif
#endif /* __cplusplus */

#include <gpg-error.h>


/* Check for compiler features.  */
#if __GNUC__
#define _GPGME_GCC_VERSION (__GNUC__ * 10000 \
                            + __GNUC_MINOR__ * 100 \
                            + __GNUC_PATCHLEVEL__)

#if _GPGME_GCC_VERSION > 30100
#define _GPGME_DEPRECATED	__attribute__ ((__deprecated__))
#endif
#endif

#ifndef _GPGME_DEPRECATED
#define _GPGME_DEPRECATED
#endif


/* The version of this header should match the one of the library.  Do
   not use this symbol in your application, use gpgme_check_version
   instead.  The purpose of this macro is to let autoconf (using the
   AM_PATH_GPGME macro) check that this header matches the installed
   library.  Warning: Do not edit the next line.  configure will do
   that for you!  */
#define GPGME_VERSION "1.1.4"



/* Some opaque data types used by GPGME.  */

/* The context holds some global state and configration options, as
   well as the results of a crypto operation.  */
struct gpgme_context;
typedef struct gpgme_context *gpgme_ctx_t;

/* The data object is used by GPGME to exchange arbitrary data.  */
struct gpgme_data;
typedef struct gpgme_data *gpgme_data_t;


/* Wrappers for the libgpg-error library.  */

typedef gpg_error_t gpgme_error_t;
typedef gpg_err_code_t gpgme_err_code_t;
typedef gpg_err_source_t gpgme_err_source_t;


static _GPGME_INLINE gpgme_error_t
gpgme_err_make (gpgme_err_source_t source, gpgme_err_code_t code)
{
  return gpg_err_make (source, code);
}


/* The user can define GPGME_ERR_SOURCE_DEFAULT before including this
   file to specify a default source for gpgme_error.  */
#ifndef GPGME_ERR_SOURCE_DEFAULT
#define GPGME_ERR_SOURCE_DEFAULT  GPG_ERR_SOURCE_USER_1
#endif

static _GPGME_INLINE gpgme_error_t
gpgme_error (gpgme_err_code_t code)
{
  return gpgme_err_make (GPGME_ERR_SOURCE_DEFAULT, code);
}


static _GPGME_INLINE gpgme_err_code_t
gpgme_err_code (gpgme_error_t err)
{
  return gpg_err_code (err);
}


static _GPGME_INLINE gpgme_err_source_t
gpgme_err_source (gpgme_error_t err)
{
  return gpg_err_source (err);
}


/* Return a pointer to a string containing a description of the error
   code in the error value ERR.  This function is not thread safe.  */
const char *gpgme_strerror (gpgme_error_t err);

/* Return the error string for ERR in the user-supplied buffer BUF of
   size BUFLEN.  This function is, in contrast to gpg_strerror,
   thread-safe if a thread-safe strerror_r() function is provided by
   the system.  If the function succeeds, 0 is returned and BUF
   contains the string describing the error.  If the buffer was not
   large enough, ERANGE is returned and BUF contains as much of the
   beginning of the error string as fits into the buffer.  */
int gpgme_strerror_r (gpg_error_t err, char *buf, size_t buflen);


/* Return a pointer to a string containing a description of the error
   source in the error value ERR.  */
const char *gpgme_strsource (gpgme_error_t err);


/* Retrieve the error code for the system error ERR.  This returns
   GPG_ERR_UNKNOWN_ERRNO if the system error is not mapped (report
   this).  */
gpgme_err_code_t gpgme_err_code_from_errno (int err);


/* Retrieve the system error for the error code CODE.  This returns 0
   if CODE is not a system error code.  */
int gpgme_err_code_to_errno (gpgme_err_code_t code);

  
/* Return an error value with the error source SOURCE and the system
   error ERR.  */
gpgme_error_t gpgme_err_make_from_errno (gpgme_err_source_t source, int err);


/* Return an error value with the system error ERR.  */
gpgme_err_code_t gpgme_error_from_errno (int err);


/* The possible encoding mode of gpgme_data_t objects.  */
typedef enum
  {
    GPGME_DATA_ENCODING_NONE   = 0,	/* Not specified.  */
    GPGME_DATA_ENCODING_BINARY = 1,
    GPGME_DATA_ENCODING_BASE64 = 2,
    GPGME_DATA_ENCODING_ARMOR  = 3	/* Either PEM or OpenPGP Armor.  */
  }
gpgme_data_encoding_t;


/* Public key algorithms from libgcrypt.  */
typedef enum
  {
    GPGME_PK_RSA   = 1,
    GPGME_PK_RSA_E = 2,
    GPGME_PK_RSA_S = 3,
    GPGME_PK_ELG_E = 16,
    GPGME_PK_DSA   = 17,
    GPGME_PK_ELG   = 20
  }
gpgme_pubkey_algo_t;


/* Hash algorithms from libgcrypt.  */
typedef enum
  {
    GPGME_MD_NONE          = 0,  
    GPGME_MD_MD5           = 1,
    GPGME_MD_SHA1          = 2,
    GPGME_MD_RMD160        = 3,
    GPGME_MD_MD2           = 5,
    GPGME_MD_TIGER         = 6,   /* TIGER/192. */
    GPGME_MD_HAVAL         = 7,   /* HAVAL, 5 pass, 160 bit. */
    GPGME_MD_SHA256        = 8,
    GPGME_MD_SHA384        = 9,
    GPGME_MD_SHA512        = 10,
    GPGME_MD_MD4           = 301,
    GPGME_MD_CRC32	   = 302,
    GPGME_MD_CRC32_RFC1510 = 303,
    GPGME_MD_CRC24_RFC2440 = 304
  }
gpgme_hash_algo_t;


/* The possible signature stati.  Deprecated, use error value in sig
   status.  */
typedef enum
  {
    GPGME_SIG_STAT_NONE  = 0,
    GPGME_SIG_STAT_GOOD  = 1,
    GPGME_SIG_STAT_BAD   = 2,
    GPGME_SIG_STAT_NOKEY = 3,
    GPGME_SIG_STAT_NOSIG = 4,
    GPGME_SIG_STAT_ERROR = 5,
    GPGME_SIG_STAT_DIFF  = 6,
    GPGME_SIG_STAT_GOOD_EXP = 7,
    GPGME_SIG_STAT_GOOD_EXPKEY = 8
  }
_gpgme_sig_stat_t;
typedef _gpgme_sig_stat_t gpgme_sig_stat_t _GPGME_DEPRECATED;


/* The available signature modes.  */
typedef enum
  {
    GPGME_SIG_MODE_NORMAL = 0,
    GPGME_SIG_MODE_DETACH = 1,
    GPGME_SIG_MODE_CLEAR  = 2
  }
gpgme_sig_mode_t;


/* The available key and signature attributes.  Deprecated, use the
   individual result structures instead.  */
typedef enum
  {
    GPGME_ATTR_KEYID        = 1,
    GPGME_ATTR_FPR          = 2,
    GPGME_ATTR_ALGO         = 3,
    GPGME_ATTR_LEN          = 4,
    GPGME_ATTR_CREATED      = 5,
    GPGME_ATTR_EXPIRE       = 6,
    GPGME_ATTR_OTRUST       = 7,
    GPGME_ATTR_USERID       = 8,
    GPGME_ATTR_NAME         = 9,
    GPGME_ATTR_EMAIL        = 10,
    GPGME_ATTR_COMMENT      = 11,
    GPGME_ATTR_VALIDITY     = 12,
    GPGME_ATTR_LEVEL        = 13,
    GPGME_ATTR_TYPE         = 14,
    GPGME_ATTR_IS_SECRET    = 15,
    GPGME_ATTR_KEY_REVOKED  = 16,
    GPGME_ATTR_KEY_INVALID  = 17,
    GPGME_ATTR_UID_REVOKED  = 18,
    GPGME_ATTR_UID_INVALID  = 19,
    GPGME_ATTR_KEY_CAPS     = 20,
    GPGME_ATTR_CAN_ENCRYPT  = 21,
    GPGME_ATTR_CAN_SIGN     = 22,
    GPGME_ATTR_CAN_CERTIFY  = 23,
    GPGME_ATTR_KEY_EXPIRED  = 24,
    GPGME_ATTR_KEY_DISABLED = 25,
    GPGME_ATTR_SERIAL       = 26,
    GPGME_ATTR_ISSUER       = 27,
    GPGME_ATTR_CHAINID      = 28,
    GPGME_ATTR_SIG_STATUS   = 29,
    GPGME_ATTR_ERRTOK       = 30,
    GPGME_ATTR_SIG_SUMMARY  = 31,
    GPGME_ATTR_SIG_CLASS    = 32
  }
_gpgme_attr_t;
typedef _gpgme_attr_t gpgme_attr_t _GPGME_DEPRECATED;


/* The available validities for a trust item or key.  */
typedef enum
  {
    GPGME_VALIDITY_UNKNOWN   = 0,
    GPGME_VALIDITY_UNDEFINED = 1,
    GPGME_VALIDITY_NEVER     = 2,
    GPGME_VALIDITY_MARGINAL  = 3,
    GPGME_VALIDITY_FULL      = 4,
    GPGME_VALIDITY_ULTIMATE  = 5
  }
gpgme_validity_t;


/* The available protocols.  */
typedef enum
  {
    GPGME_PROTOCOL_OpenPGP = 0,  /* The default mode.  */
    GPGME_PROTOCOL_CMS     = 1
  }
gpgme_protocol_t;


/* The available keylist mode flags.  */
#define GPGME_KEYLIST_MODE_LOCAL		1
#define GPGME_KEYLIST_MODE_EXTERN		2
#define GPGME_KEYLIST_MODE_SIGS			4
#define GPGME_KEYLIST_MODE_SIG_NOTATIONS	8
#define GPGME_KEYLIST_MODE_VALIDATE		256

typedef unsigned int gpgme_keylist_mode_t;


/* Signature notations.  */

/* The available signature notation flags.  */
#define GPGME_SIG_NOTATION_HUMAN_READABLE	1
#define GPGME_SIG_NOTATION_CRITICAL		2

typedef unsigned int gpgme_sig_notation_flags_t;

struct _gpgme_sig_notation
{
  struct _gpgme_sig_notation *next;

  /* If NAME is a null pointer, then VALUE contains a policy URL
     rather than a notation.  */
  char *name;

  /* The value of the notation data.  */
  char *value;

  /* The length of the name of the notation data.  */
  int name_len;

  /* The length of the value of the notation data.  */
  int value_len;

  /* The accumulated flags.  */
  gpgme_sig_notation_flags_t flags;

  /* Notation data is human-readable.  */
  unsigned int human_readable : 1;

  /* Notation data is critical.  */
  unsigned int critical : 1;

  /* Internal to GPGME, do not use.  */
  int _unused : 30;
};
typedef struct _gpgme_sig_notation *gpgme_sig_notation_t;


/* The possible stati for the edit operation.  */
typedef enum
  {
    GPGME_STATUS_EOF,
    /* mkstatus processing starts here */
    GPGME_STATUS_ENTER,
    GPGME_STATUS_LEAVE,
    GPGME_STATUS_ABORT,

    GPGME_STATUS_GOODSIG,
    GPGME_STATUS_BADSIG,
    GPGME_STATUS_ERRSIG,

    GPGME_STATUS_BADARMOR,

    GPGME_STATUS_RSA_OR_IDEA,
    GPGME_STATUS_KEYEXPIRED,
    GPGME_STATUS_KEYREVOKED,

    GPGME_STATUS_TRUST_UNDEFINED,
    GPGME_STATUS_TRUST_NEVER,
    GPGME_STATUS_TRUST_MARGINAL,
    GPGME_STATUS_TRUST_FULLY,
    GPGME_STATUS_TRUST_ULTIMATE,

    GPGME_STATUS_SHM_INFO,
    GPGME_STATUS_SHM_GET,
    GPGME_STATUS_SHM_GET_BOOL,
    GPGME_STATUS_SHM_GET_HIDDEN,

    GPGME_STATUS_NEED_PASSPHRASE,
    GPGME_STATUS_VALIDSIG,
    GPGME_STATUS_SIG_ID,
    GPGME_STATUS_ENC_TO,
    GPGME_STATUS_NODATA,
    GPGME_STATUS_BAD_PASSPHRASE,
    GPGME_STATUS_NO_PUBKEY,
    GPGME_STATUS_NO_SECKEY,
    GPGME_STATUS_NEED_PASSPHRASE_SYM,
    GPGME_STATUS_DECRYPTION_FAILED,
    GPGME_STATUS_DECRYPTION_OKAY,
    GPGME_STATUS_MISSING_PASSPHRASE,
    GPGME_STATUS_GOOD_PASSPHRASE,
    GPGME_STATUS_GOODMDC,
    GPGME_STATUS_BADMDC,
    GPGME_STATUS_ERRMDC,
    GPGME_STATUS_IMPORTED,
    GPGME_STATUS_IMPORT_OK,
    GPGME_STATUS_IMPORT_PROBLEM,
    GPGME_STATUS_IMPORT_RES,
    GPGME_STATUS_FILE_START,
    GPGME_STATUS_FILE_DONE,
    GPGME_STATUS_FILE_ERROR,

    GPGME_STATUS_BEGIN_DECRYPTION,
    GPGME_STATUS_END_DECRYPTION,
    GPGME_STATUS_BEGIN_ENCRYPTION,
    GPGME_STATUS_END_ENCRYPTION,

    GPGME_STATUS_DELETE_PROBLEM,
    GPGME_STATUS_GET_BOOL,
    GPGME_STATUS_GET_LINE,
    GPGME_STATUS_GET_HIDDEN,
    GPGME_STATUS_GOT_IT,
    GPGME_STATUS_PROGRESS,
    GPGME_STATUS_SIG_CREATED,
    GPGME_STATUS_SESSION_KEY,
    GPGME_STATUS_NOTATION_NAME,
    GPGME_STATUS_NOTATION_DATA,
    GPGME_STATUS_POLICY_URL,
    GPGME_STATUS_BEGIN_STREAM,
    GPGME_STATUS_END_STREAM,
    GPGME_STATUS_KEY_CREATED,
    GPGME_STATUS_USERID_HINT,
    GPGME_STATUS_UNEXPECTED,
    GPGME_STATUS_INV_RECP,
    GPGME_STATUS_NO_RECP,
    GPGME_STATUS_ALREADY_SIGNED,
    GPGME_STATUS_SIGEXPIRED,
    GPGME_STATUS_EXPSIG,
    GPGME_STATUS_EXPKEYSIG,
    GPGME_STATUS_TRUNCATED,
    GPGME_STATUS_ERROR,
    GPGME_STATUS_NEWSIG,
    GPGME_STATUS_REVKEYSIG,
    GPGME_STATUS_SIG_SUBPACKET,
    GPGME_STATUS_NEED_PASSPHRASE_PIN,
    GPGME_STATUS_SC_OP_FAILURE,
    GPGME_STATUS_SC_OP_SUCCESS,
    GPGME_STATUS_CARDCTRL,
    GPGME_STATUS_BACKUP_KEY_CREATED,
    GPGME_STATUS_PKA_TRUST_BAD,
    GPGME_STATUS_PKA_TRUST_GOOD,

    GPGME_STATUS_PLAINTEXT
  }
gpgme_status_code_t;


/* The engine information structure.  */
struct _gpgme_engine_info
{
  struct _gpgme_engine_info *next;

  /* The protocol ID.  */
  gpgme_protocol_t protocol;

  /* The file name of the engine binary.  */
  char *file_name;
  
  /* The version string of the installed engine.  */
  char *version;

  /* The minimum version required for GPGME.  */
  const char *req_version;

  /* The home directory used, or NULL if default.  */
  char *home_dir;
};
typedef struct _gpgme_engine_info *gpgme_engine_info_t;


/* A subkey from a key.  */
struct _gpgme_subkey
{
  struct _gpgme_subkey *next;

  /* True if subkey is revoked.  */
  unsigned int revoked : 1;

  /* True if subkey is expired.  */
  unsigned int expired : 1;

  /* True if subkey is disabled.  */
  unsigned int disabled : 1;

  /* True if subkey is invalid.  */
  unsigned int invalid : 1;

  /* True if subkey can be used for encryption.  */
  unsigned int can_encrypt : 1;

  /* True if subkey can be used for signing.  */
  unsigned int can_sign : 1;

  /* True if subkey can be used for certification.  */
  unsigned int can_certify : 1;

  /* True if subkey is secret.  */
  unsigned int secret : 1;

  /* True if subkey can be used for authentication.  */
  unsigned int can_authenticate : 1;

  /* True if subkey is qualified for signatures according to German law.  */
  unsigned int is_qualified : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 22;
  
  /* Public key algorithm supported by this subkey.  */
  gpgme_pubkey_algo_t pubkey_algo;

  /* Length of the subkey.  */
  unsigned int length;

  /* The key ID of the subkey.  */
  char *keyid;

  /* Internal to GPGME, do not use.  */
  char _keyid[16 + 1];

  /* The fingerprint of the subkey in hex digit form.  */
  char *fpr;

  /* The creation timestamp, -1 if invalid, 0 if not available.  */
  long int timestamp;

  /* The expiration timestamp, 0 if the subkey does not expire.  */
  long int expires;
};
typedef struct _gpgme_subkey *gpgme_subkey_t;


/* A signature on a user ID.  */
struct _gpgme_key_sig
{
  struct _gpgme_key_sig *next;

  /* True if the signature is a revocation signature.  */
  unsigned int revoked : 1;

  /* True if the signature is expired.  */
  unsigned int expired : 1;

  /* True if the signature is invalid.  */
  unsigned int invalid : 1;

  /* True if the signature should be exported.  */
  unsigned int exportable : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 28;

  /* The public key algorithm used to create the signature.  */
  gpgme_pubkey_algo_t pubkey_algo;

  /* The key ID of key used to create the signature.  */
  char *keyid;

  /* Internal to GPGME, do not use.  */
  char _keyid[16 + 1];

  /* The creation timestamp, -1 if invalid, 0 if not available.  */
  long int timestamp;

  /* The expiration timestamp, 0 if the subkey does not expire.  */
  long int expires;

  /* Same as in gpgme_signature_t.  */
  gpgme_error_t status;

#ifdef __cplusplus
  unsigned int _obsolete_class _GPGME_DEPRECATED;
#else
  /* Must be set to SIG_CLASS below.  */
  unsigned int class _GPGME_DEPRECATED;
#endif

  /* The user ID string.  */
  char *uid;

  /* The name part of the user ID.  */
  char *name;

  /* The email part of the user ID.  */
  char *email;

  /* The comment part of the user ID.  */
  char *comment;

  /* Crypto backend specific signature class.  */
  unsigned int sig_class;

  /* Notation data and policy URLs.  */
  gpgme_sig_notation_t notations;

  /* Internal to GPGME, do not use.  */
  gpgme_sig_notation_t _last_notation;
};
typedef struct _gpgme_key_sig *gpgme_key_sig_t;


/* An user ID from a key.  */
struct _gpgme_user_id
{
  struct _gpgme_user_id *next;

  /* True if the user ID is revoked.  */
  unsigned int revoked : 1;

  /* True if the user ID is invalid.  */
  unsigned int invalid : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 30;

  /* The validity of the user ID.  */
  gpgme_validity_t validity; 

  /* The user ID string.  */
  char *uid;

  /* The name part of the user ID.  */
  char *name;

  /* The email part of the user ID.  */
  char *email;

  /* The comment part of the user ID.  */
  char *comment;

  /* The signatures of the user ID.  */
  gpgme_key_sig_t signatures;

  /* Internal to GPGME, do not use.  */
  gpgme_key_sig_t _last_keysig;
};
typedef struct _gpgme_user_id *gpgme_user_id_t;


/* A key from the keyring.  */
struct _gpgme_key
{
  /* Internal to GPGME, do not use.  */
  unsigned int _refs;

  /* True if key is revoked.  */
  unsigned int revoked : 1;

  /* True if key is expired.  */
  unsigned int expired : 1;

  /* True if key is disabled.  */
  unsigned int disabled : 1;

  /* True if key is invalid.  */
  unsigned int invalid : 1;

  /* True if key can be used for encryption.  */
  unsigned int can_encrypt : 1;

  /* True if key can be used for signing.  */
  unsigned int can_sign : 1;

  /* True if key can be used for certification.  */
  unsigned int can_certify : 1;

  /* True if key is secret.  */
  unsigned int secret : 1;

  /* True if key can be used for authentication.  */
  unsigned int can_authenticate : 1;

  /* True if subkey is qualified for signatures according to German law.  */
  unsigned int is_qualified : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 22;

  /* This is the protocol supported by this key.  */
  gpgme_protocol_t protocol;

  /* If protocol is GPGME_PROTOCOL_CMS, this string contains the
     issuer serial.  */
  char *issuer_serial;

  /* If protocol is GPGME_PROTOCOL_CMS, this string contains the
     issuer name.  */
  char *issuer_name;

  /* If protocol is GPGME_PROTOCOL_CMS, this string contains the chain
     ID.  */
  char *chain_id;

  /* If protocol is GPGME_PROTOCOL_OpenPGP, this field contains the
     owner trust.  */
  gpgme_validity_t owner_trust;

  /* The subkeys of the key.  */
  gpgme_subkey_t subkeys;

  /* The user IDs of the key.  */
  gpgme_user_id_t uids;

  /* Internal to GPGME, do not use.  */
  gpgme_subkey_t _last_subkey;

  /* Internal to GPGME, do not use.  */
  gpgme_user_id_t _last_uid;

  /* The keylist mode that was active when listing the key.  */
  gpgme_keylist_mode_t keylist_mode;
};
typedef struct _gpgme_key *gpgme_key_t;



/* Types for callback functions.  */

/* Request a passphrase from the user.  */
typedef gpgme_error_t (*gpgme_passphrase_cb_t) (void *hook,
						const char *uid_hint,
						const char *passphrase_info,
						int prev_was_bad, int fd);

/* Inform the user about progress made.  */
typedef void (*gpgme_progress_cb_t) (void *opaque, const char *what,
				     int type, int current, int total);

/* Interact with the user about an edit operation.  */
typedef gpgme_error_t (*gpgme_edit_cb_t) (void *opaque,
					  gpgme_status_code_t status,
					  const char *args, int fd);


/* Context management functions.  */

/* Create a new context and return it in CTX.  */
gpgme_error_t gpgme_new (gpgme_ctx_t *ctx);

/* Release the context CTX.  */
void gpgme_release (gpgme_ctx_t ctx);

/* Set the protocol to be used by CTX to PROTO.  */
gpgme_error_t gpgme_set_protocol (gpgme_ctx_t ctx, gpgme_protocol_t proto);

/* Get the protocol used with CTX */
gpgme_protocol_t gpgme_get_protocol (gpgme_ctx_t ctx);

/* Get the string describing protocol PROTO, or NULL if invalid.  */
const char *gpgme_get_protocol_name (gpgme_protocol_t proto);

/* If YES is non-zero, enable armor mode in CTX, disable it otherwise.  */
void gpgme_set_armor (gpgme_ctx_t ctx, int yes);

/* Return non-zero if armor mode is set in CTX.  */
int gpgme_get_armor (gpgme_ctx_t ctx);

/* If YES is non-zero, enable text mode in CTX, disable it otherwise.  */
void gpgme_set_textmode (gpgme_ctx_t ctx, int yes);

/* Return non-zero if text mode is set in CTX.  */
int gpgme_get_textmode (gpgme_ctx_t ctx);

/* Use whatever the default of the backend crypto engine is.  */
#define GPGME_INCLUDE_CERTS_DEFAULT	-256

/* Include up to NR_OF_CERTS certificates in an S/MIME message.  */
void gpgme_set_include_certs (gpgme_ctx_t ctx, int nr_of_certs);

/* Return the number of certs to include in an S/MIME message.  */
int gpgme_get_include_certs (gpgme_ctx_t ctx);

/* Set keylist mode in CTX to MODE.  */
gpgme_error_t gpgme_set_keylist_mode (gpgme_ctx_t ctx,
				      gpgme_keylist_mode_t mode);

/* Get keylist mode in CTX.  */
gpgme_keylist_mode_t gpgme_get_keylist_mode (gpgme_ctx_t ctx);

/* Set the passphrase callback function in CTX to CB.  HOOK_VALUE is
   passed as first argument to the passphrase callback function.  */
void gpgme_set_passphrase_cb (gpgme_ctx_t ctx,
                              gpgme_passphrase_cb_t cb, void *hook_value);

/* Get the current passphrase callback function in *CB and the current
   hook value in *HOOK_VALUE.  */
void gpgme_get_passphrase_cb (gpgme_ctx_t ctx, gpgme_passphrase_cb_t *cb,
			      void **hook_value);

/* Set the progress callback function in CTX to CB.  HOOK_VALUE is
   passed as first argument to the progress callback function.  */
void gpgme_set_progress_cb (gpgme_ctx_t c, gpgme_progress_cb_t cb,
			    void *hook_value);

/* Get the current progress callback function in *CB and the current
   hook value in *HOOK_VALUE.  */
void gpgme_get_progress_cb (gpgme_ctx_t ctx, gpgme_progress_cb_t *cb,
			    void **hook_value);

/* This function sets the locale for the context CTX, or the default
   locale if CTX is a null pointer.  */
gpgme_error_t gpgme_set_locale (gpgme_ctx_t ctx, int category,
				const char *value);

/* Get the information about the configured engines.  A pointer to the
   first engine in the statically allocated linked list is returned.
   The returned data is valid until the next gpgme_ctx_set_engine_info.  */
gpgme_engine_info_t gpgme_ctx_get_engine_info (gpgme_ctx_t ctx);

/* Set the engine info for the context CTX, protocol PROTO, to the
   file name FILE_NAME and the home directory HOME_DIR.  */
gpgme_error_t gpgme_ctx_set_engine_info (gpgme_ctx_t ctx,
					 gpgme_protocol_t proto,
					 const char *file_name,
					 const char *home_dir);


/* Return a statically allocated string with the name of the public
   key algorithm ALGO, or NULL if that name is not known.  */
const char *gpgme_pubkey_algo_name (gpgme_pubkey_algo_t algo);

/* Return a statically allocated string with the name of the hash
   algorithm ALGO, or NULL if that name is not known.  */
const char *gpgme_hash_algo_name (gpgme_hash_algo_t algo);


/* Delete all signers from CTX.  */
void gpgme_signers_clear (gpgme_ctx_t ctx);

/* Add KEY to list of signers in CTX.  */
gpgme_error_t gpgme_signers_add (gpgme_ctx_t ctx, const gpgme_key_t key);

/* Return the SEQth signer's key in CTX.  */
gpgme_key_t gpgme_signers_enum (const gpgme_ctx_t ctx, int seq);

/* Retrieve the signature status of signature IDX in CTX after a
   successful verify operation in R_STAT (if non-null).  The creation
   time stamp of the signature is returned in R_CREATED (if non-null).
   The function returns a string containing the fingerprint.
   Deprecated, use verify result directly.  */
const char *gpgme_get_sig_status (gpgme_ctx_t ctx, int idx,
                                  _gpgme_sig_stat_t *r_stat,
				  time_t *r_created) _GPGME_DEPRECATED;

/* Retrieve certain attributes of a signature.  IDX is the index
   number of the signature after a successful verify operation.  WHAT
   is an attribute where GPGME_ATTR_EXPIRE is probably the most useful
   one.  WHATIDX is to be passed as 0 for most attributes . */
unsigned long gpgme_get_sig_ulong_attr (gpgme_ctx_t c, int idx,
                                        _gpgme_attr_t what, int whatidx)
     _GPGME_DEPRECATED;
const char *gpgme_get_sig_string_attr (gpgme_ctx_t c, int idx,
				       _gpgme_attr_t what, int whatidx)
     _GPGME_DEPRECATED;


/* Get the key used to create signature IDX in CTX and return it in
   R_KEY.  */
gpgme_error_t gpgme_get_sig_key (gpgme_ctx_t ctx, int idx, gpgme_key_t *r_key)
     _GPGME_DEPRECATED;


/* Clear all notation data from the context.  */
void gpgme_sig_notation_clear (gpgme_ctx_t ctx);

/* Add the human-readable notation data with name NAME and value VALUE
   to the context CTX, using the flags FLAGS.  If NAME is NULL, then
   VALUE should be a policy URL.  The flag
   GPGME_SIG_NOTATION_HUMAN_READABLE is forced to be true for notation
   data, and false for policy URLs.  */
gpgme_error_t gpgme_sig_notation_add (gpgme_ctx_t ctx, const char *name,
				      const char *value,
				      gpgme_sig_notation_flags_t flags);

/* Get the sig notations for this context.  */
gpgme_sig_notation_t gpgme_sig_notation_get (gpgme_ctx_t ctx);


/* Run control.  */

/* The type of an I/O callback function.  */
typedef gpgme_error_t (*gpgme_io_cb_t) (void *data, int fd);

/* The type of a function that can register FNC as the I/O callback
   function for the file descriptor FD with direction dir (0: for writing,
   1: for reading).  FNC_DATA should be passed as DATA to FNC.  The
   function should return a TAG suitable for the corresponding
   gpgme_remove_io_cb_t, and an error value.  */
typedef gpgme_error_t (*gpgme_register_io_cb_t) (void *data, int fd, int dir,
						 gpgme_io_cb_t fnc,
						 void *fnc_data, void **tag);

/* The type of a function that can remove a previously registered I/O
   callback function given TAG as returned by the register
   function.  */
typedef void (*gpgme_remove_io_cb_t) (void *tag);

typedef enum
  {
    GPGME_EVENT_START,
    GPGME_EVENT_DONE,
    GPGME_EVENT_NEXT_KEY,
    GPGME_EVENT_NEXT_TRUSTITEM
  }
gpgme_event_io_t;

/* The type of a function that is called when a context finished an
   operation.  */
typedef void (*gpgme_event_io_cb_t) (void *data, gpgme_event_io_t type,
				     void *type_data);

struct gpgme_io_cbs
{
  gpgme_register_io_cb_t add;
  void *add_priv;
  gpgme_remove_io_cb_t remove;
  gpgme_event_io_cb_t event;
  void *event_priv;
};
typedef struct gpgme_io_cbs *gpgme_io_cbs_t;

/* Set the I/O callback functions in CTX to IO_CBS.  */
void gpgme_set_io_cbs (gpgme_ctx_t ctx, gpgme_io_cbs_t io_cbs);

/* Get the current I/O callback functions.  */
void gpgme_get_io_cbs (gpgme_ctx_t ctx, gpgme_io_cbs_t io_cbs);

/* Process the pending operation and, if HANG is non-zero, wait for
   the pending operation to finish.  */
gpgme_ctx_t gpgme_wait (gpgme_ctx_t ctx, gpgme_error_t *status, int hang);


/* Functions to handle data objects.  */

/* Read up to SIZE bytes into buffer BUFFER from the data object with
   the handle HANDLE.  Return the number of characters read, 0 on EOF
   and -1 on error.  If an error occurs, errno is set.  */
typedef ssize_t (*gpgme_data_read_cb_t) (void *handle, void *buffer,
					 size_t size);

/* Write up to SIZE bytes from buffer BUFFER to the data object with
   the handle HANDLE.  Return the number of characters written, or -1
   on error.  If an error occurs, errno is set.  */
typedef ssize_t (*gpgme_data_write_cb_t) (void *handle, const void *buffer,
					  size_t size);

/* Set the current position from where the next read or write starts
   in the data object with the handle HANDLE to OFFSET, relativ to
   WHENCE.  */
typedef off_t (*gpgme_data_seek_cb_t) (void *handle, off_t offset, int whence);

/* Close the data object with the handle DL.  */
typedef void (*gpgme_data_release_cb_t) (void *handle);

struct gpgme_data_cbs
{
  gpgme_data_read_cb_t read;
  gpgme_data_write_cb_t write;
  gpgme_data_seek_cb_t seek;
  gpgme_data_release_cb_t release;
};
typedef struct gpgme_data_cbs *gpgme_data_cbs_t;

/* Read up to SIZE bytes into buffer BUFFER from the data object with
   the handle DH.  Return the number of characters read, 0 on EOF and
   -1 on error.  If an error occurs, errno is set.  */
ssize_t gpgme_data_read (gpgme_data_t dh, void *buffer, size_t size);

/* Write up to SIZE bytes from buffer BUFFER to the data object with
   the handle DH.  Return the number of characters written, or -1 on
   error.  If an error occurs, errno is set.  */
ssize_t gpgme_data_write (gpgme_data_t dh, const void *buffer, size_t size);

/* Set the current position from where the next read or write starts
   in the data object with the handle DH to OFFSET, relativ to
   WHENCE.  */
off_t gpgme_data_seek (gpgme_data_t dh, off_t offset, int whence);

/* Create a new data buffer and return it in R_DH.  */
gpgme_error_t gpgme_data_new (gpgme_data_t *r_dh);

/* Destroy the data buffer DH.  */
void gpgme_data_release (gpgme_data_t dh);

/* Create a new data buffer filled with SIZE bytes starting from
   BUFFER.  If COPY is zero, copying is delayed until necessary, and
   the data is taken from the original location when needed.  */
gpgme_error_t gpgme_data_new_from_mem (gpgme_data_t *r_dh,
				       const char *buffer, size_t size,
				       int copy);

/* Destroy the data buffer DH and return a pointer to its content.
   The memory has be to released with gpgme_free() by the user.  It's
   size is returned in R_LEN.  */
char *gpgme_data_release_and_get_mem (gpgme_data_t dh, size_t *r_len);

/* Release the memory returned by gpgme_data_release_and_get_mem().  */
void gpgme_free (void *buffer);

gpgme_error_t gpgme_data_new_from_cbs (gpgme_data_t *dh,
				       gpgme_data_cbs_t cbs,
				       void *handle);

gpgme_error_t gpgme_data_new_from_fd (gpgme_data_t *dh, int fd);

gpgme_error_t gpgme_data_new_from_stream (gpgme_data_t *dh, FILE *stream);

/* Return the encoding attribute of the data buffer DH */
gpgme_data_encoding_t gpgme_data_get_encoding (gpgme_data_t dh);

/* Set the encoding attribute of data buffer DH to ENC */
gpgme_error_t gpgme_data_set_encoding (gpgme_data_t dh,
				       gpgme_data_encoding_t enc);

/* Get the file name associated with the data object with handle DH, or
   NULL if there is none.  */
char *gpgme_data_get_file_name (gpgme_data_t dh);

/* Set the file name associated with the data object with handle DH to
   FILE_NAME.  */
gpgme_error_t gpgme_data_set_file_name (gpgme_data_t dh,
					const char *file_name);


/* Create a new data buffer which retrieves the data from the callback
   function READ_CB.  Deprecated, please use gpgme_data_new_from_cbs
   instead.  */
gpgme_error_t gpgme_data_new_with_read_cb (gpgme_data_t *r_dh,
					   int (*read_cb) (void*,char *,
							   size_t,size_t*),
					   void *read_cb_value)
     _GPGME_DEPRECATED;

/* Create a new data buffer filled with the content of file FNAME.
   COPY must be non-zero.  For delayed read, please use
   gpgme_data_new_from_fd or gpgme_data_new_from stream instead.  */
gpgme_error_t gpgme_data_new_from_file (gpgme_data_t *r_dh,
					const char *fname,
					int copy);

/* Create a new data buffer filled with LENGTH bytes starting from
   OFFSET within the file FNAME or stream FP (exactly one must be
   non-zero).  */
gpgme_error_t gpgme_data_new_from_filepart (gpgme_data_t *r_dh,
					    const char *fname, FILE *fp,
					    off_t offset, size_t length);

/* Reset the read pointer in DH.  Deprecated, please use
   gpgme_data_seek instead.  */
gpgme_error_t gpgme_data_rewind (gpgme_data_t dh) _GPGME_DEPRECATED;


/* Key and trust functions.  */

/* Get the key with the fingerprint FPR from the crypto backend.  If
   SECRET is true, get the secret key.  */
gpgme_error_t gpgme_get_key (gpgme_ctx_t ctx, const char *fpr,
			     gpgme_key_t *r_key, int secret);

/* Acquire a reference to KEY.  */
void gpgme_key_ref (gpgme_key_t key);

/* Release a reference to KEY.  If this was the last one the key is
   destroyed.  */
void gpgme_key_unref (gpgme_key_t key);
void gpgme_key_release (gpgme_key_t key);

/* Return the value of the attribute WHAT of KEY, which has to be
   representable by a string.  IDX specifies the sub key or user ID
   for attributes related to sub keys or user IDs.  Deprecated, use
   key structure directly instead. */
const char *gpgme_key_get_string_attr (gpgme_key_t key, _gpgme_attr_t what,
				       const void *reserved, int idx)
     _GPGME_DEPRECATED;

/* Return the value of the attribute WHAT of KEY, which has to be
   representable by an unsigned integer.  IDX specifies the sub key or
   user ID for attributes related to sub keys or user IDs.
   Deprecated, use key structure directly instead.  */
unsigned long gpgme_key_get_ulong_attr (gpgme_key_t key, _gpgme_attr_t what,
					const void *reserved, int idx)
     _GPGME_DEPRECATED;

/* Return the value of the attribute WHAT of a signature on user ID
   UID_IDX in KEY, which has to be representable by a string.  IDX
   specifies the signature.  Deprecated, use key structure directly
   instead.  */
const char *gpgme_key_sig_get_string_attr (gpgme_key_t key, int uid_idx,
					   _gpgme_attr_t what,
					   const void *reserved, int idx)
     _GPGME_DEPRECATED;

/* Return the value of the attribute WHAT of a signature on user ID
   UID_IDX in KEY, which has to be representable by an unsigned
   integer string.  IDX specifies the signature.  Deprecated, use key
   structure directly instead.  */
unsigned long gpgme_key_sig_get_ulong_attr (gpgme_key_t key, int uid_idx,
					    _gpgme_attr_t what,
					    const void *reserved, int idx)
     _GPGME_DEPRECATED;


/* Crypto Operations.  */

/* Cancel a pending asynchronous operation.  */
gpgme_error_t gpgme_cancel (gpgme_ctx_t ctx);


struct _gpgme_invalid_key
{
  struct _gpgme_invalid_key *next;
  char *fpr;
  gpgme_error_t reason;
};
typedef struct _gpgme_invalid_key *gpgme_invalid_key_t;


/* Encryption.  */
struct _gpgme_op_encrypt_result
{
  /* The list of invalid recipients.  */
  gpgme_invalid_key_t invalid_recipients;
};
typedef struct _gpgme_op_encrypt_result *gpgme_encrypt_result_t;

/* Retrieve a pointer to the result of the encrypt operation.  */
gpgme_encrypt_result_t gpgme_op_encrypt_result (gpgme_ctx_t ctx);

/* The valid encryption flags.  */
typedef enum
  {
    GPGME_ENCRYPT_ALWAYS_TRUST = 1
  }
gpgme_encrypt_flags_t;

/* Encrypt plaintext PLAIN within CTX for the recipients RECP and
   store the resulting ciphertext in CIPHER.  */
gpgme_error_t gpgme_op_encrypt_start (gpgme_ctx_t ctx, gpgme_key_t recp[],
				      gpgme_encrypt_flags_t flags,
				      gpgme_data_t plain, gpgme_data_t cipher);
gpgme_error_t gpgme_op_encrypt (gpgme_ctx_t ctx, gpgme_key_t recp[],
				gpgme_encrypt_flags_t flags,
				gpgme_data_t plain, gpgme_data_t cipher);

/* Encrypt plaintext PLAIN within CTX for the recipients RECP and
   store the resulting ciphertext in CIPHER.  Also sign the ciphertext
   with the signers in CTX.  */
gpgme_error_t gpgme_op_encrypt_sign_start (gpgme_ctx_t ctx,
					   gpgme_key_t recp[],
					   gpgme_encrypt_flags_t flags,
					   gpgme_data_t plain,
					   gpgme_data_t cipher);
gpgme_error_t gpgme_op_encrypt_sign (gpgme_ctx_t ctx, gpgme_key_t recp[],
				     gpgme_encrypt_flags_t flags,
				     gpgme_data_t plain, gpgme_data_t cipher);


/* Decryption.  */

struct _gpgme_recipient
{
  struct _gpgme_recipient *next;

  /* The key ID of key for which the text was encrypted.  */
  char *keyid;

  /* Internal to GPGME, do not use.  */
  char _keyid[16 + 1];

  /* The public key algorithm of the recipient key.  */
  gpgme_pubkey_algo_t pubkey_algo;

  /* The status of the recipient.  */
  gpgme_error_t status;
};
typedef struct _gpgme_recipient *gpgme_recipient_t;

struct _gpgme_op_decrypt_result
{
  char *unsupported_algorithm;

  /* Key should not have been used for encryption.  */
  unsigned int wrong_key_usage : 1;

  /* Internal to GPGME, do not use.  */
  int _unused : 31;

  gpgme_recipient_t recipients;

  /* The original file name of the plaintext message, if
     available.  */
  char *file_name;
};
typedef struct _gpgme_op_decrypt_result *gpgme_decrypt_result_t;

/* Retrieve a pointer to the result of the decrypt operation.  */
gpgme_decrypt_result_t gpgme_op_decrypt_result (gpgme_ctx_t ctx);

/* Decrypt ciphertext CIPHER within CTX and store the resulting
   plaintext in PLAIN.  */
gpgme_error_t gpgme_op_decrypt_start (gpgme_ctx_t ctx, gpgme_data_t cipher,
				      gpgme_data_t plain);
gpgme_error_t gpgme_op_decrypt (gpgme_ctx_t ctx,
				gpgme_data_t cipher, gpgme_data_t plain);

/* Decrypt ciphertext CIPHER and make a signature verification within
   CTX and store the resulting plaintext in PLAIN.  */
gpgme_error_t gpgme_op_decrypt_verify_start (gpgme_ctx_t ctx,
					     gpgme_data_t cipher,
					     gpgme_data_t plain);
gpgme_error_t gpgme_op_decrypt_verify (gpgme_ctx_t ctx, gpgme_data_t cipher,
				       gpgme_data_t plain);


/* Signing.  */
struct _gpgme_new_signature
{
  struct _gpgme_new_signature *next;

  /* The type of the signature.  */
  gpgme_sig_mode_t type;

  /* The public key algorithm used to create the signature.  */
  gpgme_pubkey_algo_t pubkey_algo;

  /* The hash algorithm used to create the signature.  */
  gpgme_hash_algo_t hash_algo;

  /* Internal to GPGME, do not use.  Must be set to the same value as
     CLASS below.  */
  unsigned long _obsolete_class;

  /* Signature creation time.  */
  long int timestamp;

  /* The fingerprint of the signature.  */
  char *fpr;

#ifdef __cplusplus
  unsigned int _obsolete_class_2;
#else
  /* Must be set to SIG_CLASS below.  */
  unsigned int class _GPGME_DEPRECATED;
#endif

  /* Crypto backend specific signature class.  */
  unsigned int sig_class;
};
typedef struct _gpgme_new_signature *gpgme_new_signature_t;

struct _gpgme_op_sign_result
{
  /* The list of invalid signers.  */
  gpgme_invalid_key_t invalid_signers;
  gpgme_new_signature_t signatures;
};
typedef struct _gpgme_op_sign_result *gpgme_sign_result_t;

/* Retrieve a pointer to the result of the signing operation.  */
gpgme_sign_result_t gpgme_op_sign_result (gpgme_ctx_t ctx);

/* Sign the plaintext PLAIN and store the signature in SIG.  */
gpgme_error_t gpgme_op_sign_start (gpgme_ctx_t ctx,
				   gpgme_data_t plain, gpgme_data_t sig,
				   gpgme_sig_mode_t mode);
gpgme_error_t gpgme_op_sign (gpgme_ctx_t ctx,
			     gpgme_data_t plain, gpgme_data_t sig,
			     gpgme_sig_mode_t mode);


/* Verify.  */

/* Flags used for the SUMMARY field in a gpgme_signature_t.  */
typedef enum
  {
    GPGME_SIGSUM_VALID       = 0x0001,  /* The signature is fully valid.  */
    GPGME_SIGSUM_GREEN       = 0x0002,  /* The signature is good.  */
    GPGME_SIGSUM_RED         = 0x0004,  /* The signature is bad.  */
    GPGME_SIGSUM_KEY_REVOKED = 0x0010,  /* One key has been revoked.  */
    GPGME_SIGSUM_KEY_EXPIRED = 0x0020,  /* One key has expired.  */
    GPGME_SIGSUM_SIG_EXPIRED = 0x0040,  /* The signature has expired.  */
    GPGME_SIGSUM_KEY_MISSING = 0x0080,  /* Can't verify: key missing.  */
    GPGME_SIGSUM_CRL_MISSING = 0x0100,  /* CRL not available.  */
    GPGME_SIGSUM_CRL_TOO_OLD = 0x0200,  /* Available CRL is too old.  */
    GPGME_SIGSUM_BAD_POLICY  = 0x0400,  /* A policy was not met.  */
    GPGME_SIGSUM_SYS_ERROR   = 0x0800   /* A system error occured.  */
  }
gpgme_sigsum_t;

struct _gpgme_signature
{
  struct _gpgme_signature *next;

  /* A summary of the signature status.  */
  gpgme_sigsum_t summary;

  /* The fingerprint or key ID of the signature.  */
  char *fpr;

  /* The status of the signature.  */
  gpgme_error_t status;

  /* Notation data and policy URLs.  */
  gpgme_sig_notation_t notations;

  /* Signature creation time.  */
  unsigned long timestamp;

  /* Signature exipration time or 0.  */
  unsigned long exp_timestamp;

  /* Key should not have been used for signing.  */
  unsigned int wrong_key_usage : 1;

  /* PKA status: 0 = not available, 1 = bad, 2 = okay, 3 = RFU. */
  unsigned int pka_trust : 2;

  /* Internal to GPGME, do not use.  */
  int _unused : 29;

  gpgme_validity_t validity;
  gpgme_error_t validity_reason;

  /* The public key algorithm used to create the signature.  */
  gpgme_pubkey_algo_t pubkey_algo;

  /* The hash algorithm used to create the signature.  */
  gpgme_hash_algo_t hash_algo;

  /* The mailbox from the PKA information or NULL. */
  char *pka_address;
};
typedef struct _gpgme_signature *gpgme_signature_t;

struct _gpgme_op_verify_result
{
  gpgme_signature_t signatures;

  /* The original file name of the plaintext message, if
     available.  */
  char *file_name;
};
typedef struct _gpgme_op_verify_result *gpgme_verify_result_t;

/* Retrieve a pointer to the result of the verify operation.  */
gpgme_verify_result_t gpgme_op_verify_result (gpgme_ctx_t ctx);

/* Verify within CTX that SIG is a valid signature for TEXT.  */
gpgme_error_t gpgme_op_verify_start (gpgme_ctx_t ctx, gpgme_data_t sig,
				     gpgme_data_t signed_text,
				     gpgme_data_t plaintext);
gpgme_error_t gpgme_op_verify (gpgme_ctx_t ctx, gpgme_data_t sig,
			       gpgme_data_t signed_text,
			       gpgme_data_t plaintext);


/* Import.  */

/* The key was new.  */
#define GPGME_IMPORT_NEW	1

/* The key contained new user IDs.  */
#define GPGME_IMPORT_UID	2

/* The key contained new signatures.  */
#define GPGME_IMPORT_SIG	4

/* The key contained new sub keys.  */
#define GPGME_IMPORT_SUBKEY	8

/* The key contained a secret key.  */
#define GPGME_IMPORT_SECRET	16


struct _gpgme_import_status
{
  struct _gpgme_import_status *next;

  /* Fingerprint.  */
  char *fpr;

  /* If a problem occured, the reason why the key could not be
     imported.  Otherwise GPGME_No_Error.  */
  gpgme_error_t result;

  /* The result of the import, the GPGME_IMPORT_* values bit-wise
     ORed.  0 means the key was already known and no new components
     have been added.  */
  unsigned int status;
};
typedef struct _gpgme_import_status *gpgme_import_status_t;

/* Import.  */
struct _gpgme_op_import_result
{
  /* Number of considered keys.  */
  int considered;

  /* Keys without user ID.  */
  int no_user_id;

  /* Imported keys.  */
  int imported;

  /* Imported RSA keys.  */
  int imported_rsa;

  /* Unchanged keys.  */
  int unchanged;

  /* Number of new user ids.  */
  int new_user_ids;

  /* Number of new sub keys.  */
  int new_sub_keys;

  /* Number of new signatures.  */
  int new_signatures;

  /* Number of new revocations.  */
  int new_revocations;

  /* Number of secret keys read.  */
  int secret_read;

  /* Number of secret keys imported.  */
  int secret_imported;

  /* Number of secret keys unchanged.  */
  int secret_unchanged;

  /* Number of new keys skipped.  */
  int skipped_new_keys;

  /* Number of keys not imported.  */
  int not_imported;

  /* List of keys for which an import was attempted.  */
  gpgme_import_status_t imports;
};
typedef struct _gpgme_op_import_result *gpgme_import_result_t;

/* Retrieve a pointer to the result of the import operation.  */
gpgme_import_result_t gpgme_op_import_result (gpgme_ctx_t ctx);

/* Import the key in KEYDATA into the keyring.  */
gpgme_error_t gpgme_op_import_start (gpgme_ctx_t ctx, gpgme_data_t keydata);
gpgme_error_t gpgme_op_import (gpgme_ctx_t ctx, gpgme_data_t keydata);
gpgme_error_t gpgme_op_import_ext (gpgme_ctx_t ctx, gpgme_data_t keydata,
				   int *nr) _GPGME_DEPRECATED;


/* Export the keys found by PATTERN into KEYDATA.  */
gpgme_error_t gpgme_op_export_start (gpgme_ctx_t ctx, const char *pattern,
				     unsigned int reserved,
				     gpgme_data_t keydata);
gpgme_error_t gpgme_op_export (gpgme_ctx_t ctx, const char *pattern,
			       unsigned int reserved, gpgme_data_t keydata);

gpgme_error_t gpgme_op_export_ext_start (gpgme_ctx_t ctx,
					 const char *pattern[],
					 unsigned int reserved,
					 gpgme_data_t keydata);
gpgme_error_t gpgme_op_export_ext (gpgme_ctx_t ctx, const char *pattern[],
				   unsigned int reserved,
				   gpgme_data_t keydata);


/* Key generation.  */
struct _gpgme_op_genkey_result
{
  /* A primary key was generated.  */
  unsigned int primary : 1;

  /* A sub key was generated.  */
  unsigned int sub : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 30;

  /* The fingerprint of the generated key.  */
  char *fpr;
};
typedef struct _gpgme_op_genkey_result *gpgme_genkey_result_t;

/* Generate a new keypair and add it to the keyring.  PUBKEY and
   SECKEY should be null for now.  PARMS specifies what keys should be
   generated.  */
gpgme_error_t gpgme_op_genkey_start (gpgme_ctx_t ctx, const char *parms,
				     gpgme_data_t pubkey, gpgme_data_t seckey);
gpgme_error_t gpgme_op_genkey (gpgme_ctx_t ctx, const char *parms,
			       gpgme_data_t pubkey, gpgme_data_t seckey);

/* Retrieve a pointer to the result of the genkey operation.  */
gpgme_genkey_result_t gpgme_op_genkey_result (gpgme_ctx_t ctx);


/* Delete KEY from the keyring.  If ALLOW_SECRET is non-zero, secret
   keys are also deleted.  */
gpgme_error_t gpgme_op_delete_start (gpgme_ctx_t ctx, const gpgme_key_t key,
				     int allow_secret);
gpgme_error_t gpgme_op_delete (gpgme_ctx_t ctx, const gpgme_key_t key,
			       int allow_secret);


/* Edit the key KEY.  Send status and command requests to FNC and
   output of edit commands to OUT.  */
gpgme_error_t gpgme_op_edit_start (gpgme_ctx_t ctx, gpgme_key_t key,
				   gpgme_edit_cb_t fnc, void *fnc_value,
				   gpgme_data_t out);
gpgme_error_t gpgme_op_edit (gpgme_ctx_t ctx, gpgme_key_t key,
			     gpgme_edit_cb_t fnc, void *fnc_value,
			     gpgme_data_t out);

/* Edit the card for the key KEY.  Send status and command requests to
   FNC and output of edit commands to OUT.  */
gpgme_error_t gpgme_op_card_edit_start (gpgme_ctx_t ctx, gpgme_key_t key,
					gpgme_edit_cb_t fnc, void *fnc_value,
					gpgme_data_t out);
gpgme_error_t gpgme_op_card_edit (gpgme_ctx_t ctx, gpgme_key_t key,
				  gpgme_edit_cb_t fnc, void *fnc_value,
				  gpgme_data_t out);


/* Key management functions.  */
struct _gpgme_op_keylist_result
{
  unsigned int truncated : 1;

  /* Internal to GPGME, do not use.  */
  unsigned int _unused : 31;
};
typedef struct _gpgme_op_keylist_result *gpgme_keylist_result_t;

/* Retrieve a pointer to the result of the key listing operation.  */
gpgme_keylist_result_t gpgme_op_keylist_result (gpgme_ctx_t ctx);

/* Start a keylist operation within CTX, searching for keys which
   match PATTERN.  If SECRET_ONLY is true, only secret keys are
   returned.  */
gpgme_error_t gpgme_op_keylist_start (gpgme_ctx_t ctx, const char *pattern,
				      int secret_only);
gpgme_error_t gpgme_op_keylist_ext_start (gpgme_ctx_t ctx,
					  const char *pattern[],
					  int secret_only, int reserved);

/* Return the next key from the keylist in R_KEY.  */
gpgme_error_t gpgme_op_keylist_next (gpgme_ctx_t ctx, gpgme_key_t *r_key);

/* Terminate a pending keylist operation within CTX.  */
gpgme_error_t gpgme_op_keylist_end (gpgme_ctx_t ctx);


/* Trust items and operations.  */

struct _gpgme_trust_item
{
  /* Internal to GPGME, do not use.  */
  unsigned int _refs;

  /* The key ID to which the trust item belongs.  */
  char *keyid;

  /* Internal to GPGME, do not use.  */
  char _keyid[16 + 1];

  /* The type of the trust item, 1 refers to a key, 2 to a user ID.  */
  int type;

  /* The trust level.  */
  int level;

  /* The owner trust if TYPE is 1.  */
  char *owner_trust;

  /* Internal to GPGME, do not use.  */
  char _owner_trust[2];

  /* The calculated validity.  */
  char *validity;
 
  /* Internal to GPGME, do not use.  */
  char _validity[2];

  /* The user name if TYPE is 2.  */
  char *name;
};
typedef struct _gpgme_trust_item *gpgme_trust_item_t;

/* Start a trustlist operation within CTX, searching for trust items
   which match PATTERN.  */
gpgme_error_t gpgme_op_trustlist_start (gpgme_ctx_t ctx,
					const char *pattern, int max_level);

/* Return the next trust item from the trustlist in R_ITEM.  */
gpgme_error_t gpgme_op_trustlist_next (gpgme_ctx_t ctx,
				       gpgme_trust_item_t *r_item);

/* Terminate a pending trustlist operation within CTX.  */
gpgme_error_t gpgme_op_trustlist_end (gpgme_ctx_t ctx);

/* Acquire a reference to ITEM.  */
void gpgme_trust_item_ref (gpgme_trust_item_t item);

/* Release a reference to ITEM.  If this was the last one the trust
   item is destroyed.  */
void gpgme_trust_item_unref (gpgme_trust_item_t item);

/* Release the trust item ITEM.  Deprecated, use
   gpgme_trust_item_unref.  */
void gpgme_trust_item_release (gpgme_trust_item_t item) _GPGME_DEPRECATED;

/* Return the value of the attribute WHAT of ITEM, which has to be
   representable by a string.  Deprecated, use trust item structure
   directly.  */
const char *gpgme_trust_item_get_string_attr (gpgme_trust_item_t item,
					      _gpgme_attr_t what,
					      const void *reserved, int idx)
     _GPGME_DEPRECATED;

/* Return the value of the attribute WHAT of KEY, which has to be
   representable by an integer.  IDX specifies a running index if the
   attribute appears more than once in the key.  Deprecated, use trust
   item structure directly.  */
int gpgme_trust_item_get_int_attr (gpgme_trust_item_t item, _gpgme_attr_t what,
				   const void *reserved, int idx)
     _GPGME_DEPRECATED;


/* Various functions.  */

/* Check that the library fulfills the version requirement.  */
const char *gpgme_check_version (const char *req_version);

/* Get the information about the configured and installed engines.  A
   pointer to the first engine in the statically allocated linked list
   is returned in *INFO.  If an error occurs, it is returned.  The
   returned data is valid until the next gpgme_set_engine_info.  */
gpgme_error_t gpgme_get_engine_info (gpgme_engine_info_t *engine_info);

/* Set the default engine info for the protocol PROTO to the file name
   FILE_NAME and the home directory HOME_DIR.  */
gpgme_error_t gpgme_set_engine_info (gpgme_protocol_t proto,
				     const char *file_name,
				     const char *home_dir);


/* Engine support functions.  */

/* Verify that the engine implementing PROTO is installed and
   available.  */
gpgme_error_t gpgme_engine_check_version (gpgme_protocol_t proto);


/* Deprecated types.  */
typedef gpgme_ctx_t GpgmeCtx _GPGME_DEPRECATED;
typedef gpgme_data_t GpgmeData _GPGME_DEPRECATED;
typedef gpgme_error_t GpgmeError _GPGME_DEPRECATED;
typedef gpgme_data_encoding_t GpgmeDataEncoding _GPGME_DEPRECATED;
typedef gpgme_pubkey_algo_t GpgmePubKeyAlgo _GPGME_DEPRECATED;
typedef gpgme_hash_algo_t GpgmeHashAlgo _GPGME_DEPRECATED;
typedef gpgme_sig_stat_t GpgmeSigStat _GPGME_DEPRECATED;
typedef gpgme_sig_mode_t GpgmeSigMode _GPGME_DEPRECATED;
typedef gpgme_attr_t GpgmeAttr _GPGME_DEPRECATED;
typedef gpgme_validity_t GpgmeValidity _GPGME_DEPRECATED;
typedef gpgme_protocol_t GpgmeProtocol _GPGME_DEPRECATED;
typedef gpgme_engine_info_t GpgmeEngineInfo _GPGME_DEPRECATED;
typedef gpgme_subkey_t GpgmeSubkey _GPGME_DEPRECATED;
typedef gpgme_key_sig_t GpgmeKeySig _GPGME_DEPRECATED;
typedef gpgme_user_id_t GpgmeUserID _GPGME_DEPRECATED;
typedef gpgme_key_t GpgmeKey _GPGME_DEPRECATED;
typedef gpgme_passphrase_cb_t GpgmePassphraseCb _GPGME_DEPRECATED;
typedef gpgme_progress_cb_t GpgmeProgressCb _GPGME_DEPRECATED;
typedef gpgme_io_cb_t GpgmeIOCb _GPGME_DEPRECATED;
typedef gpgme_register_io_cb_t GpgmeRegisterIOCb _GPGME_DEPRECATED;
typedef gpgme_remove_io_cb_t GpgmeRemoveIOCb _GPGME_DEPRECATED;
typedef gpgme_event_io_t GpgmeEventIO _GPGME_DEPRECATED;
typedef gpgme_event_io_cb_t GpgmeEventIOCb _GPGME_DEPRECATED;
#define GpgmeIOCbs gpgme_io_cbs
typedef gpgme_data_read_cb_t GpgmeDataReadCb _GPGME_DEPRECATED;
typedef gpgme_data_write_cb_t GpgmeDataWriteCb _GPGME_DEPRECATED;
typedef gpgme_data_seek_cb_t GpgmeDataSeekCb _GPGME_DEPRECATED;
typedef gpgme_data_release_cb_t GpgmeDataReleaseCb _GPGME_DEPRECATED;
#define GpgmeDataCbs gpgme_data_cbs
typedef gpgme_encrypt_result_t GpgmeEncryptResult _GPGME_DEPRECATED;
typedef gpgme_sig_notation_t GpgmeSigNotation _GPGME_DEPRECATED;
typedef	gpgme_signature_t GpgmeSignature _GPGME_DEPRECATED;
typedef gpgme_verify_result_t GpgmeVerifyResult _GPGME_DEPRECATED;
typedef gpgme_import_status_t GpgmeImportStatus _GPGME_DEPRECATED;
typedef gpgme_import_result_t GpgmeImportResult _GPGME_DEPRECATED;
typedef gpgme_genkey_result_t GpgmeGenKeyResult _GPGME_DEPRECATED;
typedef	gpgme_trust_item_t GpgmeTrustItem _GPGME_DEPRECATED;
typedef gpgme_status_code_t GpgmeStatusCode _GPGME_DEPRECATED;

#ifdef __cplusplus
}
#endif
#endif /* GPGME_H */