This file is indexed.

/usr/include/gnutls/gnutls.h is in libgnutls28-dev 3.0.11-1ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

   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
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
/* -*- c -*-
 * Copyright (C) 2000-2011 Free Software Foundation, Inc.
 *
 * Author: Nikos Mavrogiannopoulos
 *
 * This file is part of GnuTLS.
 *
 * The GnuTLS 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 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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 <http://www.gnu.org/licenses/>
 *
 */

/* This file contains the types and prototypes for all the
 * high level functionality of gnutls main library. For the
 * extra functionality (which is under the GNU GPL license) check
 * the gnutls/extra.h header. The openssl compatibility layer is
 * in gnutls/openssl.h.
 *
 * The low level cipher functionality is in libgcrypt. Check
 * gcrypt.h
 */


#ifndef GNUTLS_H
#define GNUTLS_H

/* Get size_t. */
#include <stddef.h>
/* Get ssize_t. */
#ifndef HAVE_SSIZE_T
#define HAVE_SSIZE_T
/* *INDENT-OFF* */
#include <sys/types.h>
/* *INDENT-ON* */
#endif
/* Get time_t. */
#include <time.h>
#ifdef __cplusplus
extern "C"
{
#endif

#define GNUTLS_VERSION "3.0.11"

#define GNUTLS_VERSION_MAJOR 3
#define GNUTLS_VERSION_MINOR 0
#define GNUTLS_VERSION_PATCH 11

#define GNUTLS_VERSION_NUMBER 0x03000b

#define GNUTLS_CIPHER_RIJNDAEL_128_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_RIJNDAEL_256_CBC GNUTLS_CIPHER_AES_256_CBC
#define GNUTLS_CIPHER_RIJNDAEL_CBC GNUTLS_CIPHER_AES_128_CBC
#define GNUTLS_CIPHER_ARCFOUR GNUTLS_CIPHER_ARCFOUR_128

/**
 * gnutls_cipher_algorithm_t:
 * @GNUTLS_CIPHER_UNKNOWN: Unknown algorithm.
 * @GNUTLS_CIPHER_NULL: NULL algorithm.
 * @GNUTLS_CIPHER_ARCFOUR_128: ARCFOUR stream cipher with 128-bit keys.
 * @GNUTLS_CIPHER_3DES_CBC: 3DES in CBC mode.
 * @GNUTLS_CIPHER_AES_128_CBC: AES in CBC mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES_192_CBC: AES in CBC mode with 192-bit keys.
 * @GNUTLS_CIPHER_AES_256_CBC: AES in CBC mode with 256-bit keys.
 * @GNUTLS_CIPHER_ARCFOUR_40: ARCFOUR stream cipher with 40-bit keys.
 * @GNUTLS_CIPHER_CAMELLIA_128_CBC: Camellia in CBC mode with 128-bit keys.
 * @GNUTLS_CIPHER_CAMELLIA_256_CBC: Camellia in CBC mode with 256-bit keys.
 * @GNUTLS_CIPHER_RC2_40_CBC: RC2 in CBC mode with 40-bit keys.
 * @GNUTLS_CIPHER_DES_CBC: DES in CBC mode (56-bit keys).
 * @GNUTLS_CIPHER_AES_128_GCM: AES in GCM mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES_256_GCM: AES in GCM mode with 256-bit keys.
 * @GNUTLS_CIPHER_IDEA_PGP_CFB: IDEA in CFB mode.
 * @GNUTLS_CIPHER_3DES_PGP_CFB: 3DES in CFB mode.
 * @GNUTLS_CIPHER_CAST5_PGP_CFB: CAST5 in CFB mode.
 * @GNUTLS_CIPHER_BLOWFISH_PGP_CFB: Blowfish in CFB mode.
 * @GNUTLS_CIPHER_SAFER_SK128_PGP_CFB: Safer-SK in CFB mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES128_PGP_CFB: AES in CFB mode with 128-bit keys.
 * @GNUTLS_CIPHER_AES192_PGP_CFB: AES in CFB mode with 192-bit keys.
 * @GNUTLS_CIPHER_AES256_PGP_CFB: AES in CFB mode with 256-bit keys.
 * @GNUTLS_CIPHER_TWOFISH_PGP_CFB: Twofish in CFB mode.
 *
 * Enumeration of different symmetric encryption algorithms.
 */
  typedef enum gnutls_cipher_algorithm
  {
    GNUTLS_CIPHER_UNKNOWN = 0,
    GNUTLS_CIPHER_NULL = 1,
    GNUTLS_CIPHER_ARCFOUR_128 = 2,
    GNUTLS_CIPHER_3DES_CBC = 3,
    GNUTLS_CIPHER_AES_128_CBC = 4,
    GNUTLS_CIPHER_AES_256_CBC = 5,
    GNUTLS_CIPHER_ARCFOUR_40 = 6,
    GNUTLS_CIPHER_CAMELLIA_128_CBC = 7,
    GNUTLS_CIPHER_CAMELLIA_256_CBC = 8,
    GNUTLS_CIPHER_RC2_40_CBC = 90,
    GNUTLS_CIPHER_DES_CBC = 91,
    GNUTLS_CIPHER_AES_192_CBC = 92,
    GNUTLS_CIPHER_AES_128_GCM = 93,
    GNUTLS_CIPHER_AES_256_GCM = 94,

    /* used only for PGP internals. Ignored in TLS/SSL
     */
    GNUTLS_CIPHER_IDEA_PGP_CFB = 200,
    GNUTLS_CIPHER_3DES_PGP_CFB = 201,
    GNUTLS_CIPHER_CAST5_PGP_CFB = 202,
    GNUTLS_CIPHER_BLOWFISH_PGP_CFB = 203,
    GNUTLS_CIPHER_SAFER_SK128_PGP_CFB = 204,
    GNUTLS_CIPHER_AES128_PGP_CFB = 205,
    GNUTLS_CIPHER_AES192_PGP_CFB = 206,
    GNUTLS_CIPHER_AES256_PGP_CFB = 207,
    GNUTLS_CIPHER_TWOFISH_PGP_CFB = 208
  } gnutls_cipher_algorithm_t;

/**
 * gnutls_kx_algorithm_t:
 * @GNUTLS_KX_UNKNOWN: Unknown key-exchange algorithm.
 * @GNUTLS_KX_RSA: RSA key-exchange algorithm.
 * @GNUTLS_KX_DHE_DSS: DHE-DSS key-exchange algorithm.
 * @GNUTLS_KX_DHE_RSA: DHE-RSA key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_RSA: ECDHE-RSA key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_ECDSA: ECDHE-ECDSA key-exchange algorithm.
 * @GNUTLS_KX_ANON_DH: Anon-DH key-exchange algorithm.
 * @GNUTLS_KX_ANON_ECDH: Anon-ECDH key-exchange algorithm.
 * @GNUTLS_KX_SRP: SRP key-exchange algorithm.
 * @GNUTLS_KX_RSA_EXPORT: RSA-EXPORT key-exchange algorithm.
 * @GNUTLS_KX_SRP_RSA: SRP-RSA key-exchange algorithm.
 * @GNUTLS_KX_SRP_DSS: SRP-DSS key-exchange algorithm.
 * @GNUTLS_KX_PSK: PSK key-exchange algorithm.
 * @GNUTLS_KX_DHE_PSK: DHE-PSK key-exchange algorithm.
 * @GNUTLS_KX_ECDHE_PSK: ECDHE-PSK key-exchange algorithm.
 *
 * Enumeration of different key exchange algorithms.
 */
  typedef enum
  {
    GNUTLS_KX_UNKNOWN = 0,
    GNUTLS_KX_RSA = 1,
    GNUTLS_KX_DHE_DSS = 2,
    GNUTLS_KX_DHE_RSA = 3,
    GNUTLS_KX_ANON_DH = 4,
    GNUTLS_KX_SRP = 5,
    GNUTLS_KX_RSA_EXPORT = 6,
    GNUTLS_KX_SRP_RSA = 7,
    GNUTLS_KX_SRP_DSS = 8,
    GNUTLS_KX_PSK = 9,
    GNUTLS_KX_DHE_PSK = 10,
    GNUTLS_KX_ANON_ECDH = 11,
    GNUTLS_KX_ECDHE_RSA = 12,
    GNUTLS_KX_ECDHE_ECDSA = 13,
    GNUTLS_KX_ECDHE_PSK = 14,
  } gnutls_kx_algorithm_t;

/**
 * gnutls_params_type_t:
 * @GNUTLS_PARAMS_RSA_EXPORT: Session RSA-EXPORT parameters.
 * @GNUTLS_PARAMS_DH: Session Diffie-Hellman parameters.
 * @GNUTLS_PARAMS_ECDH: Session Elliptic-Curve Diffie-Hellman parameters.
 *
 * Enumeration of different TLS session parameter types.
 */
  typedef enum
  {
    GNUTLS_PARAMS_RSA_EXPORT = 1,
    GNUTLS_PARAMS_DH = 2,
    GNUTLS_PARAMS_ECDH = 3,
  } gnutls_params_type_t;

/**
 * gnutls_credentials_type_t:
 * @GNUTLS_CRD_CERTIFICATE: Certificate credential.
 * @GNUTLS_CRD_ANON: Anonymous credential.
 * @GNUTLS_CRD_SRP: SRP credential.
 * @GNUTLS_CRD_PSK: PSK credential.
 * @GNUTLS_CRD_IA: IA credential.
 *
 * Enumeration of different credential types.
 */
  typedef enum
  {
    GNUTLS_CRD_CERTIFICATE = 1,
    GNUTLS_CRD_ANON,
    GNUTLS_CRD_SRP,
    GNUTLS_CRD_PSK,
    GNUTLS_CRD_IA
  } gnutls_credentials_type_t;

#define GNUTLS_MAC_SHA GNUTLS_MAC_SHA1
#define GNUTLS_DIG_SHA GNUTLS_DIG_SHA1

/**
 * gnutls_mac_algorithm_t:
 * @GNUTLS_MAC_UNKNOWN: Unknown MAC algorithm.
 * @GNUTLS_MAC_NULL: NULL MAC algorithm (empty output).
 * @GNUTLS_MAC_MD5: HMAC-MD5 algorithm.
 * @GNUTLS_MAC_SHA1: HMAC-SHA-1 algorithm.
 * @GNUTLS_MAC_RMD160: HMAC-RMD160 algorithm.
 * @GNUTLS_MAC_MD2: HMAC-MD2 algorithm.
 * @GNUTLS_MAC_SHA256: HMAC-SHA-256 algorithm.
 * @GNUTLS_MAC_SHA384: HMAC-SHA-384 algorithm.
 * @GNUTLS_MAC_SHA512: HMAC-SHA-512 algorithm.
 * @GNUTLS_MAC_SHA224: HMAC-SHA-224 algorithm.
 * @GNUTLS_MAC_AEAD: MAC implicit through AEAD cipher.
 *
 * Enumeration of different Message Authentication Code (MAC)
 * algorithms.
 */
  typedef enum
  {
    GNUTLS_MAC_UNKNOWN = 0,
    GNUTLS_MAC_NULL = 1,
    GNUTLS_MAC_MD5 = 2,
    GNUTLS_MAC_SHA1 = 3,
    GNUTLS_MAC_RMD160 = 4,
    GNUTLS_MAC_MD2 = 5,
    GNUTLS_MAC_SHA256 = 6,
    GNUTLS_MAC_SHA384 = 7,
    GNUTLS_MAC_SHA512 = 8,
    GNUTLS_MAC_SHA224 = 9,
      /* If you add anything here, make sure you align with
         gnutls_digest_algorithm_t. */
    GNUTLS_MAC_AEAD = 200 /* indicates that MAC is on the cipher */
  } gnutls_mac_algorithm_t;

/**
 * gnutls_digest_algorithm_t:
 * @GNUTLS_DIG_UNKNOWN: Unknown hash algorithm.
 * @GNUTLS_DIG_NULL: NULL hash algorithm (empty output).
 * @GNUTLS_DIG_MD5: MD5 algorithm.
 * @GNUTLS_DIG_SHA1: SHA-1 algorithm.
 * @GNUTLS_DIG_RMD160: RMD160 algorithm.
 * @GNUTLS_DIG_MD2: MD2 algorithm.
 * @GNUTLS_DIG_SHA256: SHA-256 algorithm.
 * @GNUTLS_DIG_SHA384: SHA-384 algorithm.
 * @GNUTLS_DIG_SHA512: SHA-512 algorithm.
 * @GNUTLS_DIG_SHA224: SHA-224 algorithm.
 *
 * Enumeration of different digest (hash) algorithms.
 */
  typedef enum
  {
    GNUTLS_DIG_UNKNOWN = GNUTLS_MAC_UNKNOWN,
    GNUTLS_DIG_NULL = GNUTLS_MAC_NULL,
    GNUTLS_DIG_MD5 = GNUTLS_MAC_MD5,
    GNUTLS_DIG_SHA1 = GNUTLS_MAC_SHA1,
    GNUTLS_DIG_RMD160 = GNUTLS_MAC_RMD160,
    GNUTLS_DIG_MD2 = GNUTLS_MAC_MD2,
    GNUTLS_DIG_SHA256 = GNUTLS_MAC_SHA256,
    GNUTLS_DIG_SHA384 = GNUTLS_MAC_SHA384,
    GNUTLS_DIG_SHA512 = GNUTLS_MAC_SHA512,
    GNUTLS_DIG_SHA224 = GNUTLS_MAC_SHA224
      /* If you add anything here, make sure you align with
         gnutls_mac_algorithm_t. */
  } gnutls_digest_algorithm_t;

  /* exported for other gnutls headers. This is the maximum number of
   * algorithms (ciphers, kx or macs).
   */
#define GNUTLS_MAX_ALGORITHM_NUM 32

/**
 * gnutls_compression_method_t:
 * @GNUTLS_COMP_UNKNOWN: Unknown compression method.
 * @GNUTLS_COMP_NULL: The NULL compression method (no compression).
 * @GNUTLS_COMP_DEFLATE: The DEFLATE compression method from zlib.
 * @GNUTLS_COMP_ZLIB: Same as %GNUTLS_COMP_DEFLATE.
 *
 * Enumeration of different TLS compression methods.
 */
  typedef enum
  {
    GNUTLS_COMP_UNKNOWN = 0,
    GNUTLS_COMP_NULL = 1,
    GNUTLS_COMP_DEFLATE = 2,
    GNUTLS_COMP_ZLIB = GNUTLS_COMP_DEFLATE,
  } gnutls_compression_method_t;

  /*
   * Flags for gnutls_init()
   *
   * @GNUTLS_SERVER: Connection end is a server.
   * @GNUTLS_CLIENT: Connection end is a client.
   * @GNUTLS_DATAGRAM: Connection is datagram oriented (DTLS).
   * @GNUTLS_NONBLOCK: Connection should not block (DTLS).
   *
   * Enumeration of different TLS connection end types.
   */
#define GNUTLS_SERVER 1
#define GNUTLS_CLIENT (1<<1)
#define GNUTLS_DATAGRAM (1<<2)
#define GNUTLS_NONBLOCK (1<<3)

/**
 * gnutls_alert_level_t:
 * @GNUTLS_AL_WARNING: Alert of warning severity.
 * @GNUTLS_AL_FATAL: Alert of fatal severity.
 *
 * Enumeration of different TLS alert severities.
 */
  typedef enum
  {
    GNUTLS_AL_WARNING = 1,
    GNUTLS_AL_FATAL
  } gnutls_alert_level_t;

/**
 * gnutls_alert_description_t:
 * @GNUTLS_A_CLOSE_NOTIFY: Close notify.
 * @GNUTLS_A_UNEXPECTED_MESSAGE: Unexpected message.
 * @GNUTLS_A_BAD_RECORD_MAC: Bad record MAC.
 * @GNUTLS_A_DECRYPTION_FAILED: Decryption failed.
 * @GNUTLS_A_RECORD_OVERFLOW: Record overflow.
 * @GNUTLS_A_DECOMPRESSION_FAILURE: Decompression failed.
 * @GNUTLS_A_HANDSHAKE_FAILURE: Handshake failed.
 * @GNUTLS_A_SSL3_NO_CERTIFICATE: No certificate.
 * @GNUTLS_A_BAD_CERTIFICATE: Certificate is bad.
 * @GNUTLS_A_UNSUPPORTED_CERTIFICATE: Certificate is not supported.
 * @GNUTLS_A_CERTIFICATE_REVOKED: Certificate was revoked.
 * @GNUTLS_A_CERTIFICATE_EXPIRED: Certificate is expired.
 * @GNUTLS_A_CERTIFICATE_UNKNOWN: Unknown certificate.
 * @GNUTLS_A_ILLEGAL_PARAMETER: Illegal parameter.
 * @GNUTLS_A_UNKNOWN_CA: CA is unknown.
 * @GNUTLS_A_ACCESS_DENIED: Access was denied.
 * @GNUTLS_A_DECODE_ERROR: Decode error.
 * @GNUTLS_A_DECRYPT_ERROR: Decrypt error.
 * @GNUTLS_A_EXPORT_RESTRICTION: Export restriction.
 * @GNUTLS_A_PROTOCOL_VERSION: Error in protocol version.
 * @GNUTLS_A_INSUFFICIENT_SECURITY: Insufficient security.
 * @GNUTLS_A_USER_CANCELED: User canceled.
 * @GNUTLS_A_INTERNAL_ERROR: Internal error.
 * @GNUTLS_A_NO_RENEGOTIATION: No renegotiation is allowed.
 * @GNUTLS_A_CERTIFICATE_UNOBTAINABLE: Could not retrieve the
 *   specified certificate.
 * @GNUTLS_A_UNSUPPORTED_EXTENSION: An unsupported extension was
 *   sent.
 * @GNUTLS_A_UNRECOGNIZED_NAME: The server name sent was not
 *   recognized.
 * @GNUTLS_A_UNKNOWN_PSK_IDENTITY: The SRP/PSK username is missing
 *   or not known.
 *
 * Enumeration of different TLS alerts.
 */
  typedef enum
  {
    GNUTLS_A_CLOSE_NOTIFY,
    GNUTLS_A_UNEXPECTED_MESSAGE = 10,
    GNUTLS_A_BAD_RECORD_MAC = 20,
    GNUTLS_A_DECRYPTION_FAILED,
    GNUTLS_A_RECORD_OVERFLOW,
    GNUTLS_A_DECOMPRESSION_FAILURE = 30,
    GNUTLS_A_HANDSHAKE_FAILURE = 40,
    GNUTLS_A_SSL3_NO_CERTIFICATE = 41,
    GNUTLS_A_BAD_CERTIFICATE = 42,
    GNUTLS_A_UNSUPPORTED_CERTIFICATE,
    GNUTLS_A_CERTIFICATE_REVOKED,
    GNUTLS_A_CERTIFICATE_EXPIRED,
    GNUTLS_A_CERTIFICATE_UNKNOWN,
    GNUTLS_A_ILLEGAL_PARAMETER,
    GNUTLS_A_UNKNOWN_CA,
    GNUTLS_A_ACCESS_DENIED,
    GNUTLS_A_DECODE_ERROR = 50,
    GNUTLS_A_DECRYPT_ERROR,
    GNUTLS_A_EXPORT_RESTRICTION = 60,
    GNUTLS_A_PROTOCOL_VERSION = 70,
    GNUTLS_A_INSUFFICIENT_SECURITY,
    GNUTLS_A_INTERNAL_ERROR = 80,
    GNUTLS_A_USER_CANCELED = 90,
    GNUTLS_A_NO_RENEGOTIATION = 100,
    GNUTLS_A_UNSUPPORTED_EXTENSION = 110,
    GNUTLS_A_CERTIFICATE_UNOBTAINABLE = 111,
    GNUTLS_A_UNRECOGNIZED_NAME = 112,
    GNUTLS_A_UNKNOWN_PSK_IDENTITY = 115,
  } gnutls_alert_description_t;

/**
 * gnutls_handshake_description_t:
 * @GNUTLS_HANDSHAKE_HELLO_REQUEST: Hello request.
 * @GNUTLS_HANDSHAKE_HELLO_VERIFY_REQUEST: DTLS Hello verify request.
 * @GNUTLS_HANDSHAKE_CLIENT_HELLO: Client hello.
 * @GNUTLS_HANDSHAKE_SERVER_HELLO: Server hello.
 * @GNUTLS_HANDSHAKE_NEW_SESSION_TICKET: New session ticket.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_PKT: Certificate packet.
 * @GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE: Server key exchange.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST: Certificate request.
 * @GNUTLS_HANDSHAKE_SERVER_HELLO_DONE: Server hello done.
 * @GNUTLS_HANDSHAKE_CERTIFICATE_VERIFY: Certificate verify.
 * @GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE: Client key exchange.
 * @GNUTLS_HANDSHAKE_FINISHED: Finished.
 * @GNUTLS_HANDSHAKE_SUPPLEMENTAL: Supplemental.
 * @GNUTLS_HANDSHAKE_CHANGE_CIPHER_SPEC: Change Cipher Spec
 * @GNUTLS_HANDSHAKE_CLIENT_HELLO_V2: SSLv2 Client Hello.
 *
 * Enumeration of different TLS handshake packets.
 */
  typedef enum
  {
    GNUTLS_HANDSHAKE_HELLO_REQUEST = 0,
    GNUTLS_HANDSHAKE_CLIENT_HELLO = 1,
    GNUTLS_HANDSHAKE_SERVER_HELLO = 2,
    GNUTLS_HANDSHAKE_HELLO_VERIFY_REQUEST = 3,
    GNUTLS_HANDSHAKE_NEW_SESSION_TICKET = 4,
    GNUTLS_HANDSHAKE_CERTIFICATE_PKT = 11,
    GNUTLS_HANDSHAKE_SERVER_KEY_EXCHANGE = 12,
    GNUTLS_HANDSHAKE_CERTIFICATE_REQUEST = 13,
    GNUTLS_HANDSHAKE_SERVER_HELLO_DONE = 14,
    GNUTLS_HANDSHAKE_CERTIFICATE_VERIFY = 15,
    GNUTLS_HANDSHAKE_CLIENT_KEY_EXCHANGE = 16,
    GNUTLS_HANDSHAKE_FINISHED = 20,
    GNUTLS_HANDSHAKE_SUPPLEMENTAL = 23,
    GNUTLS_HANDSHAKE_CHANGE_CIPHER_SPEC = 254,
    GNUTLS_HANDSHAKE_CLIENT_HELLO_V2 = 1024,
  } gnutls_handshake_description_t;

/**
 * gnutls_certificate_status_t:
 * @GNUTLS_CERT_INVALID: The certificate is not signed by one of the
 *   known authorities or the signature is invalid.
 * @GNUTLS_CERT_REVOKED: Certificate is revoked by its authority.  In X.509 this will be
 *   set only if CRLs are checked.
 * @GNUTLS_CERT_SIGNER_NOT_FOUND: The certificate's issuer is not known. 
 *   This is the case if the issue is not included in the trusted certificate list.
 *   not found.
 * @GNUTLS_CERT_SIGNER_NOT_CA: The certificate’s signer was not a CA. This
 *   may happen if this was a version 1 certificate, which is common with 
 *   some CAs, or a version 3 certificate without the basic constrains extension.
 * @GNUTLS_CERT_INSECURE_ALGORITHM:  The certificate was signed using an in-
 *   secure algorithm such as MD2 or MD5. These algorithms have been broken and
 *   should not be trusted.
 * @GNUTLS_CERT_NOT_ACTIVATED: The certificate is not yet activated.
 * @GNUTLS_CERT_EXPIRED: The certificate has expired.
 *
 * Enumeration of certificate status codes.  Note that the status
 * bits have different meanings in OpenPGP keys and X.509
 * certificate verification.
 */
  typedef enum
  {
    GNUTLS_CERT_INVALID = 2,
    GNUTLS_CERT_REVOKED = 32,
    GNUTLS_CERT_SIGNER_NOT_FOUND = 64,
    GNUTLS_CERT_SIGNER_NOT_CA = 128,
    GNUTLS_CERT_INSECURE_ALGORITHM = 256,
    GNUTLS_CERT_NOT_ACTIVATED = 512,
    GNUTLS_CERT_EXPIRED = 1024
  } gnutls_certificate_status_t;

/**
 * gnutls_certificate_request_t:
 * @GNUTLS_CERT_IGNORE: Ignore certificate.
 * @GNUTLS_CERT_REQUEST: Request certificate.
 * @GNUTLS_CERT_REQUIRE: Require certificate.
 *
 * Enumeration of certificate request types.
 */
  typedef enum
  {
    GNUTLS_CERT_IGNORE = 0,
    GNUTLS_CERT_REQUEST = 1,
    GNUTLS_CERT_REQUIRE = 2
  } gnutls_certificate_request_t;

/**
 * gnutls_openpgp_crt_status_t:
 * @GNUTLS_OPENPGP_CERT: Send entire certificate.
 * @GNUTLS_OPENPGP_CERT_FINGERPRINT: Send only certificate fingerprint.
 *
 * Enumeration of ways to send OpenPGP certificate.
 */
  typedef enum
  {
    GNUTLS_OPENPGP_CERT = 0,
    GNUTLS_OPENPGP_CERT_FINGERPRINT = 1
  } gnutls_openpgp_crt_status_t;

/**
 * gnutls_close_request_t:
 * @GNUTLS_SHUT_RDWR: Disallow further receives/sends.
 * @GNUTLS_SHUT_WR: Disallow further sends.
 *
 * Enumeration of how TLS session should be terminated.  See gnutls_bye().
 */
  typedef enum
  {
    GNUTLS_SHUT_RDWR = 0,
    GNUTLS_SHUT_WR = 1
  } gnutls_close_request_t;

/**
 * gnutls_protocol_t:
 * @GNUTLS_SSL3: SSL version 3.0.
 * @GNUTLS_TLS1_0: TLS version 1.0.
 * @GNUTLS_TLS1: Same as %GNUTLS_TLS1_0.
 * @GNUTLS_TLS1_1: TLS version 1.1.
 * @GNUTLS_TLS1_2: TLS version 1.2.
 * @GNUTLS_DTLS1_0: DTLS version 1.0.
 * @GNUTLS_VERSION_MAX: Maps to the highest supported TLS version.
 * @GNUTLS_VERSION_UNKNOWN: Unknown SSL/TLS version.
 *
 * Enumeration of different SSL/TLS protocol versions.
 */
  typedef enum
  {
    GNUTLS_SSL3 = 1,
    GNUTLS_TLS1_0 = 2,
    GNUTLS_TLS1 = GNUTLS_TLS1_0,
    GNUTLS_TLS1_1 = 3,
    GNUTLS_TLS1_2 = 4,
    GNUTLS_DTLS1_0 = 5,
    GNUTLS_VERSION_MAX = GNUTLS_DTLS1_0,
    GNUTLS_VERSION_UNKNOWN = 0xff
  } gnutls_protocol_t;

/**
 * gnutls_certificate_type_t:
 * @GNUTLS_CRT_UNKNOWN: Unknown certificate type.
 * @GNUTLS_CRT_X509: X.509 Certificate.
 * @GNUTLS_CRT_OPENPGP: OpenPGP certificate.
 *
 * Enumeration of different certificate types.
 */
  typedef enum
  {
    GNUTLS_CRT_UNKNOWN = 0,
    GNUTLS_CRT_X509 = 1,
    GNUTLS_CRT_OPENPGP = 2
  } gnutls_certificate_type_t;

/**
 * gnutls_x509_crt_fmt_t:
 * @GNUTLS_X509_FMT_DER: X.509 certificate in DER format (binary).
 * @GNUTLS_X509_FMT_PEM: X.509 certificate in PEM format (text).
 *
 * Enumeration of different certificate encoding formats.
 */
  typedef enum
  {
    GNUTLS_X509_FMT_DER = 0,
    GNUTLS_X509_FMT_PEM = 1
  } gnutls_x509_crt_fmt_t;

/**
 * gnutls_certificate_print_formats_t:
 * @GNUTLS_CRT_PRINT_FULL: Full information about certificate.
 * @GNUTLS_CRT_PRINT_ONELINE: Information about certificate in one line.
 * @GNUTLS_CRT_PRINT_UNSIGNED_FULL: All info for an unsigned certificate.
 *
 * Enumeration of different certificate printing variants.
 */
  typedef enum gnutls_certificate_print_formats
  {
    GNUTLS_CRT_PRINT_FULL = 0,
    GNUTLS_CRT_PRINT_ONELINE = 1,
    GNUTLS_CRT_PRINT_UNSIGNED_FULL = 2
  } gnutls_certificate_print_formats_t;

#define GNUTLS_PK_ECC GNUTLS_PK_EC
/**
 * gnutls_pk_algorithm_t:
 * @GNUTLS_PK_UNKNOWN: Unknown public-key algorithm.
 * @GNUTLS_PK_RSA: RSA public-key algorithm.
 * @GNUTLS_PK_DSA: DSA public-key algorithm.
 * @GNUTLS_PK_DH: Diffie-Hellman algorithm. Used to generate parameters.
 * @GNUTLS_PK_EC: Elliptic curve algorithm. Used to generate parameters.
 *
 * Enumeration of different public-key algorithms.
 */
  typedef enum
  {
    GNUTLS_PK_UNKNOWN = 0,
    GNUTLS_PK_RSA = 1,
    GNUTLS_PK_DSA = 2,
    GNUTLS_PK_DH = 3,
    GNUTLS_PK_EC = 4,
  } gnutls_pk_algorithm_t;

  const char *gnutls_pk_algorithm_get_name (gnutls_pk_algorithm_t algorithm);

/**
 * gnutls_sign_algorithm_t:
 * @GNUTLS_SIGN_UNKNOWN: Unknown signature algorithm.
 * @GNUTLS_SIGN_RSA_SHA1: Digital signature algorithm RSA with SHA-1
 * @GNUTLS_SIGN_RSA_SHA: Same as %GNUTLS_SIGN_RSA_SHA1.
 * @GNUTLS_SIGN_DSA_SHA1: Digital signature algorithm DSA with SHA-1
 * @GNUTLS_SIGN_DSA_SHA224: Digital signature algorithm DSA with SHA-224
 * @GNUTLS_SIGN_DSA_SHA256: Digital signature algorithm DSA with SHA-256
 * @GNUTLS_SIGN_DSA_SHA: Same as %GNUTLS_SIGN_DSA_SHA1.
 * @GNUTLS_SIGN_RSA_MD5: Digital signature algorithm RSA with MD5.
 * @GNUTLS_SIGN_RSA_MD2: Digital signature algorithm RSA with MD2.
 * @GNUTLS_SIGN_RSA_RMD160: Digital signature algorithm RSA with RMD-160.
 * @GNUTLS_SIGN_RSA_SHA256: Digital signature algorithm RSA with SHA-256.
 * @GNUTLS_SIGN_RSA_SHA384: Digital signature algorithm RSA with SHA-384.
 * @GNUTLS_SIGN_RSA_SHA512: Digital signature algorithm RSA with SHA-512.
 * @GNUTLS_SIGN_RSA_SHA224: Digital signature algorithm RSA with SHA-224.
 * @GNUTLS_SIGN_ECDSA_SHA1: ECDSA with SHA1.
 * @GNUTLS_SIGN_ECDSA_SHA256: Digital signature algorithm ECDSA with SHA-256.
 * @GNUTLS_SIGN_ECDSA_SHA384: Digital signature algorithm ECDSA with SHA-384.
 * @GNUTLS_SIGN_ECDSA_SHA512: Digital signature algorithm ECDSA with SHA-512.
 * @GNUTLS_SIGN_ECDSA_SHA224: Digital signature algorithm ECDSA with SHA-224.
 *
 * Enumeration of different digital signature algorithms.
 */
  typedef enum
  {
    GNUTLS_SIGN_UNKNOWN = 0,
    GNUTLS_SIGN_RSA_SHA1 = 1,
    GNUTLS_SIGN_RSA_SHA = GNUTLS_SIGN_RSA_SHA1,
    GNUTLS_SIGN_DSA_SHA1 = 2,
    GNUTLS_SIGN_DSA_SHA = GNUTLS_SIGN_DSA_SHA1,
    GNUTLS_SIGN_RSA_MD5 = 3,
    GNUTLS_SIGN_RSA_MD2 = 4,
    GNUTLS_SIGN_RSA_RMD160 = 5,
    GNUTLS_SIGN_RSA_SHA256 = 6,
    GNUTLS_SIGN_RSA_SHA384 = 7,
    GNUTLS_SIGN_RSA_SHA512 = 8,
    GNUTLS_SIGN_RSA_SHA224 = 9,
    GNUTLS_SIGN_DSA_SHA224 = 10,
    GNUTLS_SIGN_DSA_SHA256 = 11,
    GNUTLS_SIGN_ECDSA_SHA1 = 12,
    GNUTLS_SIGN_ECDSA_SHA224 = 13,
    GNUTLS_SIGN_ECDSA_SHA256 = 14,
    GNUTLS_SIGN_ECDSA_SHA384 = 15,
    GNUTLS_SIGN_ECDSA_SHA512 = 16,
  } gnutls_sign_algorithm_t;

/**
 * gnutls_ecc_curve_t:
 * @GNUTLS_ECC_CURVE_INVALID: Cannot be known
 * @GNUTLS_ECC_CURVE_SECP192R1: the SECP192R1 curve
 * @GNUTLS_ECC_CURVE_SECP224R1: the SECP224R1 curve
 * @GNUTLS_ECC_CURVE_SECP256R1: the SECP256R1 curve
 * @GNUTLS_ECC_CURVE_SECP384R1: the SECP384R1 curve
 * @GNUTLS_ECC_CURVE_SECP521R1: the SECP521R1 curve
 *
 * Enumeration of ECC curves.
 */
typedef enum
{
  GNUTLS_ECC_CURVE_INVALID=0,
  GNUTLS_ECC_CURVE_SECP224R1,
  GNUTLS_ECC_CURVE_SECP256R1,
  GNUTLS_ECC_CURVE_SECP384R1,
  GNUTLS_ECC_CURVE_SECP521R1,
  GNUTLS_ECC_CURVE_SECP192R1,
} gnutls_ecc_curve_t;

/**
 * gnutls_sec_param_t:
 * @GNUTLS_SEC_PARAM_UNKNOWN: Cannot be known
 * @GNUTLS_SEC_PARAM_WEAK: 50 or less bits of security
 * @GNUTLS_SEC_PARAM_LOW: 80 bits of security
 * @GNUTLS_SEC_PARAM_NORMAL: 112 bits of security
 * @GNUTLS_SEC_PARAM_HIGH: 128 bits of security
 * @GNUTLS_SEC_PARAM_ULTRA: 192 bits of security
 *
 * Enumeration of security parameters for passive attacks
 */
  typedef enum
  {
    GNUTLS_SEC_PARAM_UNKNOWN,
    GNUTLS_SEC_PARAM_WEAK,
    GNUTLS_SEC_PARAM_LOW,
    GNUTLS_SEC_PARAM_NORMAL,
    GNUTLS_SEC_PARAM_HIGH,
    GNUTLS_SEC_PARAM_ULTRA
  } gnutls_sec_param_t;

/**
 * gnutls_channel_binding_t:
 * @GNUTLS_CB_TLS_UNIQUE: "tls-unique" (RFC 5929) channel binding
 *
 * Enumeration of support channel binding types.
 */
  typedef enum
  {
    GNUTLS_CB_TLS_UNIQUE
  } gnutls_channel_binding_t;

/* If you want to change this, then also change the define in
 * gnutls_int.h, and recompile.
 */
  typedef void *gnutls_transport_ptr_t;

  struct gnutls_session_int;
  typedef struct gnutls_session_int *gnutls_session_t;

  struct gnutls_dh_params_int;
  typedef struct gnutls_dh_params_int *gnutls_dh_params_t;

  struct gnutls_ecdh_params_int;
  typedef struct gnutls_ecdh_params_int *gnutls_ecdh_params_t;

  /* XXX ugly. */
  struct gnutls_x509_privkey_int;
  typedef struct gnutls_x509_privkey_int *gnutls_rsa_params_t;

  struct gnutls_priority_st;
  typedef struct gnutls_priority_st *gnutls_priority_t;

  typedef struct
  {
    unsigned char *data;
    unsigned int size;
  } gnutls_datum_t;


  typedef struct gnutls_params_st
  {
    gnutls_params_type_t type;
    union params
    {
      gnutls_dh_params_t dh;
      gnutls_ecdh_params_t ecdh;
      gnutls_rsa_params_t rsa_export;
    } params;
    int deinit;
  } gnutls_params_st;

  typedef int gnutls_params_function (gnutls_session_t, gnutls_params_type_t,
                                      gnutls_params_st *);

/* internal functions */

  int gnutls_init (gnutls_session_t * session,
                   unsigned int flags);
  void gnutls_deinit (gnutls_session_t session);
#define _gnutls_deinit(x) gnutls_deinit(x)

  int gnutls_bye (gnutls_session_t session, gnutls_close_request_t how);

  int gnutls_handshake (gnutls_session_t session);
  int gnutls_rehandshake (gnutls_session_t session);

  gnutls_alert_description_t gnutls_alert_get (gnutls_session_t session);
  int gnutls_alert_send (gnutls_session_t session,
                         gnutls_alert_level_t level,
                         gnutls_alert_description_t desc);
  int gnutls_alert_send_appropriate (gnutls_session_t session, int err);
  const char *gnutls_alert_get_name (gnutls_alert_description_t alert);
  const char * gnutls_alert_get_strname (gnutls_alert_description_t alert);

  gnutls_sec_param_t gnutls_pk_bits_to_sec_param (gnutls_pk_algorithm_t algo,
                                                  unsigned int bits);
  const char *gnutls_sec_param_get_name (gnutls_sec_param_t param);
  unsigned int gnutls_sec_param_to_pk_bits (gnutls_pk_algorithm_t algo,
                                            gnutls_sec_param_t param);

/* Elliptic curves */
const char * gnutls_ecc_curve_get_name (gnutls_ecc_curve_t curve);
int gnutls_ecc_curve_get_size (gnutls_ecc_curve_t curve);
gnutls_ecc_curve_t gnutls_ecc_curve_get(gnutls_session_t session);

/* get information on the current session */
  gnutls_cipher_algorithm_t gnutls_cipher_get (gnutls_session_t session);
  gnutls_kx_algorithm_t gnutls_kx_get (gnutls_session_t session);
  gnutls_mac_algorithm_t gnutls_mac_get (gnutls_session_t session);
    gnutls_compression_method_t
    gnutls_compression_get (gnutls_session_t session);
    gnutls_certificate_type_t
    gnutls_certificate_type_get (gnutls_session_t session);
  int gnutls_sign_algorithm_get_requested (gnutls_session_t session,
                                           size_t indx,
                                           gnutls_sign_algorithm_t * algo);

  size_t gnutls_cipher_get_key_size (gnutls_cipher_algorithm_t algorithm);
  size_t gnutls_mac_get_key_size (gnutls_mac_algorithm_t algorithm);

/* the name of the specified algorithms */
  const char *gnutls_cipher_get_name (gnutls_cipher_algorithm_t algorithm);
  const char *gnutls_mac_get_name (gnutls_mac_algorithm_t algorithm);
  const char *gnutls_compression_get_name (gnutls_compression_method_t
                                           algorithm);
  const char *gnutls_kx_get_name (gnutls_kx_algorithm_t algorithm);
  const char *gnutls_certificate_type_get_name (gnutls_certificate_type_t
                                                type);
  const char *gnutls_pk_get_name (gnutls_pk_algorithm_t algorithm);
  const char *gnutls_sign_get_name (gnutls_sign_algorithm_t algorithm);
#define gnutls_sign_algorithm_get_name gnutls_sign_get_name

  gnutls_mac_algorithm_t gnutls_mac_get_id (const char *name);
  gnutls_compression_method_t gnutls_compression_get_id (const char *name);
  gnutls_cipher_algorithm_t gnutls_cipher_get_id (const char *name);
  gnutls_kx_algorithm_t gnutls_kx_get_id (const char *name);
  gnutls_protocol_t gnutls_protocol_get_id (const char *name);
  gnutls_certificate_type_t gnutls_certificate_type_get_id (const char *name);
  gnutls_pk_algorithm_t gnutls_pk_get_id (const char *name);
  gnutls_sign_algorithm_t gnutls_sign_get_id (const char *name);

  /* list supported algorithms */
  const gnutls_cipher_algorithm_t *gnutls_cipher_list (void);
  const gnutls_mac_algorithm_t *gnutls_mac_list (void);
  const gnutls_compression_method_t *gnutls_compression_list (void);
  const gnutls_protocol_t *gnutls_protocol_list (void);
  const gnutls_certificate_type_t *gnutls_certificate_type_list (void);
  const gnutls_kx_algorithm_t *gnutls_kx_list (void);
  const gnutls_pk_algorithm_t *gnutls_pk_list (void);
  const gnutls_sign_algorithm_t *gnutls_sign_list (void);
  const char *gnutls_cipher_suite_info (size_t idx,
                                        unsigned char *cs_id,
                                        gnutls_kx_algorithm_t * kx,
                                        gnutls_cipher_algorithm_t * cipher,
                                        gnutls_mac_algorithm_t * mac,
                                        gnutls_protocol_t * min_version);

  /* error functions */
  int gnutls_error_is_fatal (int error);
  int gnutls_error_to_alert (int err, int *level);

  void gnutls_perror (int error);
  const char *gnutls_strerror (int error);
  const char *gnutls_strerror_name (int error);

/* Semi-internal functions.
 */
  void gnutls_handshake_set_private_extensions (gnutls_session_t session,
                                                int allow);
    gnutls_handshake_description_t
    gnutls_handshake_get_last_out (gnutls_session_t session);
    gnutls_handshake_description_t
    gnutls_handshake_get_last_in (gnutls_session_t session);

/* Record layer functions.
 */
  ssize_t gnutls_record_send (gnutls_session_t session, const void *data,
                              size_t data_size);
  ssize_t gnutls_record_recv (gnutls_session_t session, void *data,
                              size_t data_size);
#define gnutls_read gnutls_record_recv
#define gnutls_write gnutls_record_send
  ssize_t gnutls_record_recv_seq (gnutls_session_t session, void *data, size_t data_size,
    unsigned char *seq);

  void gnutls_session_enable_compatibility_mode (gnutls_session_t session);

  void gnutls_record_disable_padding (gnutls_session_t session);

  int gnutls_record_get_direction (gnutls_session_t session);

  size_t gnutls_record_get_max_size (gnutls_session_t session);
  ssize_t gnutls_record_set_max_size (gnutls_session_t session, size_t size);

  size_t gnutls_record_check_pending (gnutls_session_t session);

  int gnutls_prf (gnutls_session_t session,
                  size_t label_size, const char *label,
                  int server_random_first,
                  size_t extra_size, const char *extra,
                  size_t outsize, char *out);

  int gnutls_prf_raw (gnutls_session_t session,
                      size_t label_size, const char *label,
                      size_t seed_size, const char *seed,
                      size_t outsize, char *out);

/**
 * gnutls_server_name_type_t:
 * @GNUTLS_NAME_DNS: Domain Name System name type.
 *
 * Enumeration of different server name types.
 */
  typedef enum
  {
    GNUTLS_NAME_DNS = 1
  } gnutls_server_name_type_t;

  int gnutls_server_name_set (gnutls_session_t session,
                              gnutls_server_name_type_t type,
                              const void *name, size_t name_length);

  int gnutls_server_name_get (gnutls_session_t session,
                              void *data, size_t * data_length,
                              unsigned int *type, unsigned int indx);

  /* Safe renegotiation */
  int gnutls_safe_renegotiation_status (gnutls_session_t session);

/**
 * gnutls_supplemental_data_format_type_t:
 * @GNUTLS_SUPPLEMENTAL_USER_MAPPING_DATA: Supplemental user mapping data.
 *
 * Enumeration of different supplemental data types (RFC 4680).
 */
  typedef enum
  {
    GNUTLS_SUPPLEMENTAL_USER_MAPPING_DATA = 0
  } gnutls_supplemental_data_format_type_t;

  const char
    *gnutls_supplemental_get_name (gnutls_supplemental_data_format_type_t
                                   type);

  /* SessionTicket, RFC 5077. */
  int gnutls_session_ticket_key_generate (gnutls_datum_t * key);
  int gnutls_session_ticket_enable_client (gnutls_session_t session);
  int gnutls_session_ticket_enable_server (gnutls_session_t session,
                                           const gnutls_datum_t * key);

  int gnutls_key_generate (gnutls_datum_t * key, unsigned int key_size);

/* if you just want some defaults, use the following.
 */
  int gnutls_priority_init (gnutls_priority_t * priority_cache,
                            const char *priorities, const char **err_pos);
  void gnutls_priority_deinit (gnutls_priority_t priority_cache);
  int gnutls_priority_get_cipher_suite_index (gnutls_priority_t pcache, unsigned int idx, unsigned int *sidx);

  int gnutls_priority_set (gnutls_session_t session,
                           gnutls_priority_t priority);
  int gnutls_priority_set_direct (gnutls_session_t session,
                                  const char *priorities,
                                  const char **err_pos);

  /* for compatibility
   */
  int gnutls_set_default_priority (gnutls_session_t session);

/* Returns the name of a cipher suite */
  const char *gnutls_cipher_suite_get_name (gnutls_kx_algorithm_t
                                            kx_algorithm,
                                            gnutls_cipher_algorithm_t
                                            cipher_algorithm,
                                            gnutls_mac_algorithm_t
                                            mac_algorithm);

/* get the currently used protocol version */
  gnutls_protocol_t gnutls_protocol_get_version (gnutls_session_t session);

  const char *gnutls_protocol_get_name (gnutls_protocol_t version);


/* get/set session 
 */
  int gnutls_session_set_data (gnutls_session_t session,
                               const void *session_data,
                               size_t session_data_size);
  int gnutls_session_get_data (gnutls_session_t session, void *session_data,
                               size_t * session_data_size);
  int gnutls_session_get_data2 (gnutls_session_t session,
                                gnutls_datum_t * data);

/* returns the session ID */
#define GNUTLS_MAX_SESSION_ID 32
  int gnutls_session_get_id (gnutls_session_t session, void *session_id,
                             size_t * session_id_size);


  int gnutls_session_channel_binding (gnutls_session_t session,
                                      gnutls_channel_binding_t cbtype,
                                      gnutls_datum_t * cb);

/* checks if this session is a resumed one 
 */
  int gnutls_session_is_resumed (gnutls_session_t session);

  typedef int (*gnutls_db_store_func) (void *, gnutls_datum_t key,
                                       gnutls_datum_t data);
  typedef int (*gnutls_db_remove_func) (void *, gnutls_datum_t key);
  typedef gnutls_datum_t (*gnutls_db_retr_func) (void *, gnutls_datum_t key);

  void gnutls_db_set_cache_expiration (gnutls_session_t session, int seconds);

  void gnutls_db_remove_session (gnutls_session_t session);
  void gnutls_db_set_retrieve_function (gnutls_session_t session,
                                        gnutls_db_retr_func retr_func);
  void gnutls_db_set_remove_function (gnutls_session_t session,
                                      gnutls_db_remove_func rem_func);
  void gnutls_db_set_store_function (gnutls_session_t session,
                                     gnutls_db_store_func store_func);
  void gnutls_db_set_ptr (gnutls_session_t session, void *ptr);
  void *gnutls_db_get_ptr (gnutls_session_t session);
  int gnutls_db_check_entry (gnutls_session_t session,
                             gnutls_datum_t session_entry);

  typedef int (*gnutls_handshake_post_client_hello_func) (gnutls_session_t);
  void
    gnutls_handshake_set_post_client_hello_function (gnutls_session_t session,
                                                     gnutls_handshake_post_client_hello_func
                                                     func);

  void gnutls_handshake_set_max_packet_length (gnutls_session_t session,
                                               size_t max);

/* returns libgnutls version (call it with a NULL argument)
 */
  const char *gnutls_check_version (const char *req_version);

/* Functions for setting/clearing credentials
 */
  void gnutls_credentials_clear (gnutls_session_t session);

/* cred is a structure defined by the kx algorithm
 */
  int gnutls_credentials_set (gnutls_session_t session,
                              gnutls_credentials_type_t type, void *cred);
#define gnutls_cred_set	gnutls_credentials_set

/* x.509 types */

  struct gnutls_x509_privkey_int;
  typedef struct gnutls_x509_privkey_int *gnutls_x509_privkey_t;

  struct gnutls_x509_crl_int;
  typedef struct gnutls_x509_crl_int *gnutls_x509_crl_t;

  struct gnutls_x509_crt_int;
  typedef struct gnutls_x509_crt_int *gnutls_x509_crt_t;

  struct gnutls_x509_crq_int;
  typedef struct gnutls_x509_crq_int *gnutls_x509_crq_t;

  struct gnutls_openpgp_keyring_int;
  typedef struct gnutls_openpgp_keyring_int *gnutls_openpgp_keyring_t;


/* Credential structures - used in gnutls_credentials_set(); */

  struct gnutls_certificate_credentials_st;
  typedef struct gnutls_certificate_credentials_st
    *gnutls_certificate_credentials_t;
  typedef gnutls_certificate_credentials_t
    gnutls_certificate_server_credentials;
  typedef gnutls_certificate_credentials_t
    gnutls_certificate_client_credentials;

  typedef struct gnutls_anon_server_credentials_st
    *gnutls_anon_server_credentials_t;
  typedef struct gnutls_anon_client_credentials_st
    *gnutls_anon_client_credentials_t;

  void gnutls_anon_free_server_credentials (gnutls_anon_server_credentials_t
                                            sc);
  int
    gnutls_anon_allocate_server_credentials (gnutls_anon_server_credentials_t
                                             * sc);

  void gnutls_anon_set_server_dh_params (gnutls_anon_server_credentials_t res,
                                         gnutls_dh_params_t dh_params);

  void
    gnutls_anon_set_server_params_function (gnutls_anon_server_credentials_t
                                            res,
                                            gnutls_params_function * func);

  void
    gnutls_anon_free_client_credentials (gnutls_anon_client_credentials_t sc);
  int
    gnutls_anon_allocate_client_credentials (gnutls_anon_client_credentials_t
                                             * sc);

/* CERTFILE is an x509 certificate in PEM form.
 * KEYFILE is a pkcs-1 private key in PEM form (for RSA keys).
 */
  void
    gnutls_certificate_free_credentials (gnutls_certificate_credentials_t sc);
  int
    gnutls_certificate_allocate_credentials (gnutls_certificate_credentials_t
                                             * res);

  int
    gnutls_certificate_get_issuer (gnutls_certificate_credentials_t sc,
    gnutls_x509_crt_t cert, gnutls_x509_crt_t* issuer, unsigned int flags);

  void gnutls_certificate_free_keys (gnutls_certificate_credentials_t sc);
  void gnutls_certificate_free_cas (gnutls_certificate_credentials_t sc);
  void gnutls_certificate_free_ca_names (gnutls_certificate_credentials_t sc);
  void gnutls_certificate_free_crls (gnutls_certificate_credentials_t sc);

  void gnutls_certificate_set_dh_params (gnutls_certificate_credentials_t res,
                                         gnutls_dh_params_t dh_params);
  void gnutls_certificate_set_verify_flags (gnutls_certificate_credentials_t
                                            res, unsigned int flags);
  void gnutls_certificate_set_verify_limits (gnutls_certificate_credentials_t
                                             res, unsigned int max_bits,
                                             unsigned int max_depth);

  int
    gnutls_certificate_set_x509_trust_file (gnutls_certificate_credentials_t
                                            cred, const char *cafile,
                                            gnutls_x509_crt_fmt_t type);
  int gnutls_certificate_set_x509_trust_mem (gnutls_certificate_credentials_t
                                             res, const gnutls_datum_t * ca,
                                             gnutls_x509_crt_fmt_t type);

  int
    gnutls_certificate_set_x509_crl_file (gnutls_certificate_credentials_t
                                          res, const char *crlfile,
                                          gnutls_x509_crt_fmt_t type);
  int gnutls_certificate_set_x509_crl_mem (gnutls_certificate_credentials_t
                                           res, const gnutls_datum_t * CRL,
                                           gnutls_x509_crt_fmt_t type);

  int
    gnutls_certificate_set_x509_key_file (gnutls_certificate_credentials_t
                                          res, const char *certfile,
                                          const char *keyfile,
                                          gnutls_x509_crt_fmt_t type);
  int gnutls_certificate_set_x509_key_mem (gnutls_certificate_credentials_t
                                           res, const gnutls_datum_t * cert,
                                           const gnutls_datum_t * key,
                                           gnutls_x509_crt_fmt_t type);

  void gnutls_certificate_send_x509_rdn_sequence (gnutls_session_t session,
                                                  int status);

  int gnutls_certificate_set_x509_simple_pkcs12_file
    (gnutls_certificate_credentials_t res, const char *pkcs12file,
     gnutls_x509_crt_fmt_t type, const char *password);
  int gnutls_certificate_set_x509_simple_pkcs12_mem
    (gnutls_certificate_credentials_t res, const gnutls_datum_t * p12blob,
     gnutls_x509_crt_fmt_t type, const char *password);

/* New functions to allow setting already parsed X.509 stuff.
 */

  int gnutls_certificate_set_x509_key (gnutls_certificate_credentials_t res,
                                       gnutls_x509_crt_t * cert_list,
                                       int cert_list_size,
                                       gnutls_x509_privkey_t key);
  int gnutls_certificate_set_x509_trust (gnutls_certificate_credentials_t res,
                                         gnutls_x509_crt_t * ca_list,
                                         int ca_list_size);
  int gnutls_certificate_set_x509_crl (gnutls_certificate_credentials_t res,
                                       gnutls_x509_crl_t * crl_list,
                                       int crl_list_size);

  void
    gnutls_certificate_get_openpgp_keyring (gnutls_certificate_credentials_t
                                            sc,
                                            gnutls_openpgp_keyring_t *
                                            keyring);

/* global state functions
 */
  int gnutls_global_init (void);
  void gnutls_global_deinit (void);

  /**
   * gnutls_time_func:
   * @t: where to store time.
   *
   * Function prototype for time()-like function.  Set with
   * gnutls_global_set_time_function().
   *
   * Returns: Number of seconds since the epoch, or (time_t)-1 on errors.
   */
  typedef time_t (*gnutls_time_func) (time_t *t);

  typedef int (*mutex_init_func) (void **mutex);
  typedef int (*mutex_lock_func) (void **mutex);
  typedef int (*mutex_unlock_func) (void **mutex);
  typedef int (*mutex_deinit_func) (void **mutex);

  void gnutls_global_set_mutex (mutex_init_func init, mutex_deinit_func deinit,
                                mutex_lock_func lock, mutex_unlock_func unlock);

  typedef void *(*gnutls_alloc_function) (size_t);
  typedef void *(*gnutls_calloc_function) (size_t, size_t);
  typedef int (*gnutls_is_secure_function) (const void *);
  typedef void (*gnutls_free_function) (void *);
  typedef void *(*gnutls_realloc_function) (void *, size_t);

  void
    gnutls_global_set_mem_functions (gnutls_alloc_function alloc_func,
                                     gnutls_alloc_function secure_alloc_func,
                                     gnutls_is_secure_function is_secure_func,
                                     gnutls_realloc_function realloc_func,
                                     gnutls_free_function free_func);

  void gnutls_global_set_time_function (gnutls_time_func time_func);

/* For use in callbacks */
  extern gnutls_alloc_function gnutls_malloc;
  extern gnutls_alloc_function gnutls_secure_malloc;
  extern gnutls_realloc_function gnutls_realloc;
  extern gnutls_calloc_function gnutls_calloc;
  extern gnutls_free_function gnutls_free;

  extern char *(*gnutls_strdup) (const char *);

  typedef void (*gnutls_log_func) (int, const char *);
  typedef void (*gnutls_audit_log_func) (gnutls_session_t, const char *);
  void gnutls_global_set_log_function (gnutls_log_func log_func);
  void gnutls_global_set_audit_log_function (gnutls_audit_log_func log_func);
  void gnutls_global_set_log_level (int level);

/* Diffie-Hellman parameter handling.
 */
  int gnutls_dh_params_init (gnutls_dh_params_t * dh_params);
  void gnutls_dh_params_deinit (gnutls_dh_params_t dh_params);
  int gnutls_dh_params_import_raw (gnutls_dh_params_t dh_params,
                                   const gnutls_datum_t * prime,
                                   const gnutls_datum_t * generator);
  int gnutls_dh_params_import_pkcs3 (gnutls_dh_params_t params,
                                     const gnutls_datum_t * pkcs3_params,
                                     gnutls_x509_crt_fmt_t format);
  int gnutls_dh_params_generate2 (gnutls_dh_params_t params,
                                  unsigned int bits);
  int gnutls_dh_params_export_pkcs3 (gnutls_dh_params_t params,
                                     gnutls_x509_crt_fmt_t format,
                                     unsigned char *params_data,
                                     size_t * params_data_size);
  int gnutls_dh_params_export_raw (gnutls_dh_params_t params,
                                   gnutls_datum_t * prime,
                                   gnutls_datum_t * generator,
                                   unsigned int *bits);
  int gnutls_dh_params_cpy (gnutls_dh_params_t dst, gnutls_dh_params_t src);



/* Session stuff
 */
  typedef struct
  {
    void *iov_base;             /* Starting address */
    size_t iov_len;             /* Number of bytes to transfer */
  } giovec_t;

  typedef ssize_t (*gnutls_pull_func) (gnutls_transport_ptr_t, void *,
                                       size_t);
  typedef ssize_t (*gnutls_push_func) (gnutls_transport_ptr_t, const void *,
                                       size_t);

  typedef int (*gnutls_pull_timeout_func) (gnutls_transport_ptr_t, unsigned int ms);

  typedef ssize_t (*gnutls_vec_push_func) (gnutls_transport_ptr_t,
                                           const giovec_t * iov, int iovcnt);

  typedef int (*gnutls_errno_func) (gnutls_transport_ptr_t);

  void gnutls_transport_set_ptr (gnutls_session_t session,
                                 gnutls_transport_ptr_t ptr);
  void gnutls_transport_set_ptr2 (gnutls_session_t session,
                                  gnutls_transport_ptr_t recv_ptr,
                                  gnutls_transport_ptr_t send_ptr);

  gnutls_transport_ptr_t gnutls_transport_get_ptr (gnutls_session_t session);
  void gnutls_transport_get_ptr2 (gnutls_session_t session,
                                  gnutls_transport_ptr_t * recv_ptr,
                                  gnutls_transport_ptr_t * send_ptr);

  void gnutls_transport_set_vec_push_function (gnutls_session_t session,
                                            gnutls_vec_push_func vec_func);
  void gnutls_transport_set_push_function (gnutls_session_t session,
                                           gnutls_push_func push_func);
  void gnutls_transport_set_pull_function (gnutls_session_t session,
                                           gnutls_pull_func pull_func);

  void gnutls_transport_set_pull_timeout_function (gnutls_session_t session,
                                            gnutls_pull_timeout_func func);

  void gnutls_transport_set_errno_function (gnutls_session_t session,
                                            gnutls_errno_func errno_func);

  void gnutls_transport_set_errno (gnutls_session_t session, int err);

/* session specific 
 */
  void gnutls_session_set_ptr (gnutls_session_t session, void *ptr);
  void *gnutls_session_get_ptr (gnutls_session_t session);

  void gnutls_openpgp_send_cert (gnutls_session_t session,
                                 gnutls_openpgp_crt_status_t status);

/* This function returns the hash of the given data.
 */
  int gnutls_fingerprint (gnutls_digest_algorithm_t algo,
                          const gnutls_datum_t * data, void *result,
                          size_t * result_size);

  typedef enum gnutls_random_art
  {
    GNUTLS_RANDOM_ART_OPENSSH=1,
  } gnutls_random_art_t;

  int gnutls_random_art (gnutls_random_art_t type, 
                         const char* key_name, unsigned int key_size,
                         void * fpr, size_t fpr_size,
                         gnutls_datum_t* art);

/* SRP 
 */

  typedef struct gnutls_srp_server_credentials_st
    *gnutls_srp_server_credentials_t;
  typedef struct gnutls_srp_client_credentials_st
    *gnutls_srp_client_credentials_t;

  void
    gnutls_srp_free_client_credentials (gnutls_srp_client_credentials_t sc);
  int
    gnutls_srp_allocate_client_credentials (gnutls_srp_client_credentials_t *
                                            sc);
  int gnutls_srp_set_client_credentials (gnutls_srp_client_credentials_t res,
                                         const char *username,
                                         const char *password);

  void
    gnutls_srp_free_server_credentials (gnutls_srp_server_credentials_t sc);
  int
    gnutls_srp_allocate_server_credentials (gnutls_srp_server_credentials_t *
                                            sc);
  int gnutls_srp_set_server_credentials_file (gnutls_srp_server_credentials_t
                                              res, const char *password_file,
                                              const char *password_conf_file);

  const char *gnutls_srp_server_get_username (gnutls_session_t session);

  extern void gnutls_srp_set_prime_bits (gnutls_session_t session,
                                         unsigned int bits);

  int gnutls_srp_verifier (const char *username,
                           const char *password,
                           const gnutls_datum_t * salt,
                           const gnutls_datum_t * generator,
                           const gnutls_datum_t * prime,
                           gnutls_datum_t * res);

/* The static parameters defined in draft-ietf-tls-srp-05
 * Those should be used as input to gnutls_srp_verifier().
 */
  extern const gnutls_datum_t gnutls_srp_4096_group_prime;
  extern const gnutls_datum_t gnutls_srp_4096_group_generator;

  extern const gnutls_datum_t gnutls_srp_3072_group_prime;
  extern const gnutls_datum_t gnutls_srp_3072_group_generator;

  extern const gnutls_datum_t gnutls_srp_2048_group_prime;
  extern const gnutls_datum_t gnutls_srp_2048_group_generator;

  extern const gnutls_datum_t gnutls_srp_1536_group_prime;
  extern const gnutls_datum_t gnutls_srp_1536_group_generator;

  extern const gnutls_datum_t gnutls_srp_1024_group_prime;
  extern const gnutls_datum_t gnutls_srp_1024_group_generator;

  typedef int gnutls_srp_server_credentials_function (gnutls_session_t,
                                                      const char *username,
                                                      gnutls_datum_t * salt,
                                                      gnutls_datum_t *
                                                      verifier,
                                                      gnutls_datum_t *
                                                      generator,
                                                      gnutls_datum_t * prime);
  void
    gnutls_srp_set_server_credentials_function (
     gnutls_srp_server_credentials_t cred,
     gnutls_srp_server_credentials_function * func);

  typedef int gnutls_srp_client_credentials_function (gnutls_session_t,
                                                      char **, char **);
  void
    gnutls_srp_set_client_credentials_function (
     gnutls_srp_client_credentials_t cred,
     gnutls_srp_client_credentials_function * func);

  int gnutls_srp_base64_encode (const gnutls_datum_t * data, char *result,
                                size_t * result_size);
  int gnutls_srp_base64_encode_alloc (const gnutls_datum_t * data,
                                      gnutls_datum_t * result);

  int gnutls_srp_base64_decode (const gnutls_datum_t * b64_data, char *result,
                                size_t * result_size);
  int gnutls_srp_base64_decode_alloc (const gnutls_datum_t * b64_data,
                                      gnutls_datum_t * result);

/* PSK stuff */
  typedef struct gnutls_psk_server_credentials_st
    *gnutls_psk_server_credentials_t;
  typedef struct gnutls_psk_client_credentials_st
    *gnutls_psk_client_credentials_t;

/**
 * gnutls_psk_key_flags:
 * @GNUTLS_PSK_KEY_RAW: PSK-key in raw format.
 * @GNUTLS_PSK_KEY_HEX: PSK-key in hex format.
 *
 * Enumeration of different PSK key flags.
 */
  typedef enum gnutls_psk_key_flags
  {
    GNUTLS_PSK_KEY_RAW = 0,
    GNUTLS_PSK_KEY_HEX
  } gnutls_psk_key_flags;

  void
    gnutls_psk_free_client_credentials (gnutls_psk_client_credentials_t sc);
  int
    gnutls_psk_allocate_client_credentials (gnutls_psk_client_credentials_t *
                                            sc);
  int gnutls_psk_set_client_credentials (gnutls_psk_client_credentials_t res,
                                         const char *username,
                                         const gnutls_datum_t * key,
                                         gnutls_psk_key_flags flags);

  void
    gnutls_psk_free_server_credentials (gnutls_psk_server_credentials_t sc);
  int
    gnutls_psk_allocate_server_credentials (gnutls_psk_server_credentials_t *
                                            sc);
  int gnutls_psk_set_server_credentials_file (gnutls_psk_server_credentials_t
                                              res, const char *password_file);

  int
    gnutls_psk_set_server_credentials_hint (gnutls_psk_server_credentials_t
                                            res, const char *hint);

  const char *gnutls_psk_server_get_username (gnutls_session_t session);
  const char *gnutls_psk_client_get_hint (gnutls_session_t session);

  typedef int gnutls_psk_server_credentials_function (gnutls_session_t,
                                                      const char *username,
                                                      gnutls_datum_t * key);
  void
    gnutls_psk_set_server_credentials_function (
     gnutls_psk_server_credentials_t cred,
     gnutls_psk_server_credentials_function * func);

  typedef int gnutls_psk_client_credentials_function (gnutls_session_t,
                                                      char **username,
                                                      gnutls_datum_t * key);
  void
    gnutls_psk_set_client_credentials_function (
     gnutls_psk_client_credentials_t cred,
     gnutls_psk_client_credentials_function * func);

  int gnutls_hex_encode (const gnutls_datum_t * data, char *result,
                         size_t * result_size);
  int gnutls_hex_decode (const gnutls_datum_t * hex_data, char *result,
                         size_t * result_size);

  void
    gnutls_psk_set_server_dh_params (gnutls_psk_server_credentials_t res,
                                     gnutls_dh_params_t dh_params);

  void
    gnutls_psk_set_server_params_function (gnutls_psk_server_credentials_t
                                           res,
                                           gnutls_params_function * func);

/**
 * gnutls_x509_subject_alt_name_t:
 * @GNUTLS_SAN_DNSNAME: DNS-name SAN.
 * @GNUTLS_SAN_RFC822NAME: E-mail address SAN.
 * @GNUTLS_SAN_URI: URI SAN.
 * @GNUTLS_SAN_IPADDRESS: IP address SAN.
 * @GNUTLS_SAN_OTHERNAME: OtherName SAN.
 * @GNUTLS_SAN_DN: DN SAN.
 * @GNUTLS_SAN_OTHERNAME_XMPP: Virtual SAN, used by
 *   gnutls_x509_crt_get_subject_alt_othername_oid.
 *
 * Enumeration of different subject alternative names types.
 */
  typedef enum gnutls_x509_subject_alt_name_t
  {
    GNUTLS_SAN_DNSNAME = 1,
    GNUTLS_SAN_RFC822NAME = 2,
    GNUTLS_SAN_URI = 3,
    GNUTLS_SAN_IPADDRESS = 4,
    GNUTLS_SAN_OTHERNAME = 5,
    GNUTLS_SAN_DN = 6,
    /* The following are "virtual" subject alternative name types, in
       that they are represented by an otherName value and an OID.
       Used by gnutls_x509_crt_get_subject_alt_othername_oid.  */
    GNUTLS_SAN_OTHERNAME_XMPP = 1000
  } gnutls_x509_subject_alt_name_t;

  struct gnutls_openpgp_crt_int;
  typedef struct gnutls_openpgp_crt_int *gnutls_openpgp_crt_t;

  struct gnutls_openpgp_privkey_int;
  typedef struct gnutls_openpgp_privkey_int *gnutls_openpgp_privkey_t;

  struct gnutls_pkcs11_privkey_st;
  typedef struct gnutls_pkcs11_privkey_st *gnutls_pkcs11_privkey_t;

/**
 * gnutls_privkey_type_t:
 * @GNUTLS_PRIVKEY_X509: X.509 private key, #gnutls_x509_privkey_t.
 * @GNUTLS_PRIVKEY_OPENPGP: OpenPGP private key, #gnutls_openpgp_privkey_t.
 * @GNUTLS_PRIVKEY_PKCS11: PKCS11 private key, #gnutls_pkcs11_privkey_t.
 * @GNUTLS_PRIVKEY_EXT: External private key, operating using callbacks.
 *
 * Enumeration of different private key types.
 */
  typedef enum
    {
      GNUTLS_PRIVKEY_X509,
      GNUTLS_PRIVKEY_OPENPGP,
      GNUTLS_PRIVKEY_PKCS11,
      GNUTLS_PRIVKEY_EXT
    } gnutls_privkey_type_t;

  typedef struct gnutls_retr2_st
  {
    gnutls_certificate_type_t cert_type;
    gnutls_privkey_type_t key_type;

    union
    {
      gnutls_x509_crt_t *x509;
      gnutls_openpgp_crt_t pgp;
    } cert;
    unsigned int ncerts;        /* one for pgp keys */

    union
    {
      gnutls_x509_privkey_t x509;
      gnutls_openpgp_privkey_t pgp;
      gnutls_pkcs11_privkey_t pkcs11;
    } key;

    unsigned int deinit_all;    /* if non zero all keys will be deinited */
  } gnutls_retr2_st;


  /* Functions that allow auth_info_t structures handling
   */

  gnutls_credentials_type_t gnutls_auth_get_type (gnutls_session_t session);
    gnutls_credentials_type_t
    gnutls_auth_server_get_type (gnutls_session_t session);
    gnutls_credentials_type_t
    gnutls_auth_client_get_type (gnutls_session_t session);

  /* DH */

  void gnutls_dh_set_prime_bits (gnutls_session_t session, unsigned int bits);
  int gnutls_dh_get_secret_bits (gnutls_session_t session);
  int gnutls_dh_get_peers_public_bits (gnutls_session_t session);
  int gnutls_dh_get_prime_bits (gnutls_session_t session);

  int gnutls_dh_get_group (gnutls_session_t session, gnutls_datum_t * raw_gen,
                           gnutls_datum_t * raw_prime);
  int gnutls_dh_get_pubkey (gnutls_session_t session,
                            gnutls_datum_t * raw_key);

  /* X509PKI */


  /* These are set on the credentials structure.
   */

  /* use gnutls_certificate_set_retrieve_function2() in abstract.h
   * instead. It's much more efficient.
   */

  typedef int gnutls_certificate_retrieve_function (gnutls_session_t,
                                                    const
                                                    gnutls_datum_t *
                                                    req_ca_rdn,
                                                    int nreqs,
                                                    const
                                                    gnutls_pk_algorithm_t
                                                    * pk_algos,
                                                    int
                                                    pk_algos_length,
                                                    gnutls_retr2_st *);


  void gnutls_certificate_set_retrieve_function (
     gnutls_certificate_credentials_t cred,
     gnutls_certificate_retrieve_function * func);

  typedef int gnutls_certificate_verify_function (gnutls_session_t);
  void
    gnutls_certificate_set_verify_function (gnutls_certificate_credentials_t
                                            cred,
                                            gnutls_certificate_verify_function
                                            * func);

  void
    gnutls_certificate_server_set_request (gnutls_session_t session,
                                           gnutls_certificate_request_t req);

  /* get data from the session
   */
  const gnutls_datum_t *gnutls_certificate_get_peers (gnutls_session_t
                                                      session,
                                                      unsigned int
                                                      *list_size);
  const gnutls_datum_t *gnutls_certificate_get_ours (gnutls_session_t
                                                     session);

  time_t gnutls_certificate_activation_time_peers (gnutls_session_t session);
  time_t gnutls_certificate_expiration_time_peers (gnutls_session_t session);

  int gnutls_certificate_client_get_request_status (gnutls_session_t session);
  int gnutls_certificate_verify_peers2 (gnutls_session_t session,
                                        unsigned int *status);

  int gnutls_pem_base64_encode (const char *msg, const gnutls_datum_t * data,
                                char *result, size_t * result_size);
  int gnutls_pem_base64_decode (const char *header,
                                const gnutls_datum_t * b64_data,
                                unsigned char *result, size_t * result_size);

  int gnutls_pem_base64_encode_alloc (const char *msg,
                                      const gnutls_datum_t * data,
                                      gnutls_datum_t * result);
  int gnutls_pem_base64_decode_alloc (const char *header,
                                      const gnutls_datum_t * b64_data,
                                      gnutls_datum_t * result);

  /* key_usage will be an OR of the following values:
   */

  /* when the key is to be used for signing: */
#define GNUTLS_KEY_DIGITAL_SIGNATURE	128
#define GNUTLS_KEY_NON_REPUDIATION	64
  /* when the key is to be used for encryption: */
#define GNUTLS_KEY_KEY_ENCIPHERMENT	32
#define GNUTLS_KEY_DATA_ENCIPHERMENT	16
#define GNUTLS_KEY_KEY_AGREEMENT	8
#define GNUTLS_KEY_KEY_CERT_SIGN	4
#define GNUTLS_KEY_CRL_SIGN		2
#define GNUTLS_KEY_ENCIPHER_ONLY	1
#define GNUTLS_KEY_DECIPHER_ONLY	32768

  void
    gnutls_certificate_set_params_function (gnutls_certificate_credentials_t
                                            res,
                                            gnutls_params_function * func);
  void gnutls_anon_set_params_function (gnutls_anon_server_credentials_t res,
                                        gnutls_params_function * func);
  void gnutls_psk_set_params_function (gnutls_psk_server_credentials_t res,
                                       gnutls_params_function * func);

  int gnutls_hex2bin (const char *hex_data, size_t hex_size,
                      char *bin_data, size_t * bin_size);

  /* Gnutls error codes. The mapping to a TLS alert is also shown in
   * comments.
   */

#define GNUTLS_E_SUCCESS 0
#define	GNUTLS_E_UNKNOWN_COMPRESSION_ALGORITHM -3
#define	GNUTLS_E_UNKNOWN_CIPHER_TYPE -6
#define	GNUTLS_E_LARGE_PACKET -7
#define GNUTLS_E_UNSUPPORTED_VERSION_PACKET -8  /* GNUTLS_A_PROTOCOL_VERSION */
#define GNUTLS_E_UNEXPECTED_PACKET_LENGTH -9    /* GNUTLS_A_RECORD_OVERFLOW */
#define GNUTLS_E_INVALID_SESSION -10
#define GNUTLS_E_FATAL_ALERT_RECEIVED -12
#define GNUTLS_E_UNEXPECTED_PACKET -15  /* GNUTLS_A_UNEXPECTED_MESSAGE */
#define GNUTLS_E_WARNING_ALERT_RECEIVED -16
#define GNUTLS_E_ERROR_IN_FINISHED_PACKET -18
#define GNUTLS_E_UNEXPECTED_HANDSHAKE_PACKET -19
#define	GNUTLS_E_UNKNOWN_CIPHER_SUITE -21       /* GNUTLS_A_HANDSHAKE_FAILURE */
#define	GNUTLS_E_UNWANTED_ALGORITHM -22
#define	GNUTLS_E_MPI_SCAN_FAILED -23
#define GNUTLS_E_DECRYPTION_FAILED -24  /* GNUTLS_A_DECRYPTION_FAILED, GNUTLS_A_BAD_RECORD_MAC */
#define GNUTLS_E_MEMORY_ERROR -25
#define GNUTLS_E_DECOMPRESSION_FAILED -26       /* GNUTLS_A_DECOMPRESSION_FAILURE */
#define GNUTLS_E_COMPRESSION_FAILED -27
#define GNUTLS_E_AGAIN -28
#define GNUTLS_E_EXPIRED -29
#define GNUTLS_E_DB_ERROR -30
#define GNUTLS_E_SRP_PWD_ERROR -31
#define GNUTLS_E_INSUFFICIENT_CREDENTIALS -32
#define GNUTLS_E_INSUFICIENT_CREDENTIALS GNUTLS_E_INSUFFICIENT_CREDENTIALS      /* for backwards compatibility only */
#define GNUTLS_E_INSUFFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS
#define GNUTLS_E_INSUFICIENT_CRED GNUTLS_E_INSUFFICIENT_CREDENTIALS     /* for backwards compatibility only */

#define GNUTLS_E_HASH_FAILED -33
#define GNUTLS_E_BASE64_DECODING_ERROR -34

#define	GNUTLS_E_MPI_PRINT_FAILED -35
#define GNUTLS_E_REHANDSHAKE -37        /* GNUTLS_A_NO_RENEGOTIATION */
#define GNUTLS_E_GOT_APPLICATION_DATA -38
#define GNUTLS_E_RECORD_LIMIT_REACHED -39
#define GNUTLS_E_ENCRYPTION_FAILED -40

#define GNUTLS_E_PK_ENCRYPTION_FAILED -44
#define GNUTLS_E_PK_DECRYPTION_FAILED -45
#define GNUTLS_E_PK_SIGN_FAILED -46
#define GNUTLS_E_X509_UNSUPPORTED_CRITICAL_EXTENSION -47
#define GNUTLS_E_KEY_USAGE_VIOLATION -48
#define GNUTLS_E_NO_CERTIFICATE_FOUND -49       /* GNUTLS_A_BAD_CERTIFICATE */
#define GNUTLS_E_INVALID_REQUEST -50
#define GNUTLS_E_SHORT_MEMORY_BUFFER -51
#define GNUTLS_E_INTERRUPTED -52
#define GNUTLS_E_PUSH_ERROR -53
#define GNUTLS_E_PULL_ERROR -54
#define GNUTLS_E_RECEIVED_ILLEGAL_PARAMETER -55 /* GNUTLS_A_ILLEGAL_PARAMETER */
#define GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE -56
#define GNUTLS_E_PKCS1_WRONG_PAD -57
#define GNUTLS_E_RECEIVED_ILLEGAL_EXTENSION -58
#define GNUTLS_E_INTERNAL_ERROR -59
#define GNUTLS_E_DH_PRIME_UNACCEPTABLE -63
#define GNUTLS_E_FILE_ERROR -64
#define GNUTLS_E_TOO_MANY_EMPTY_PACKETS -78
#define GNUTLS_E_UNKNOWN_PK_ALGORITHM -80
#define GNUTLS_E_TOO_MANY_HANDSHAKE_PACKETS -81

  /* returned if you need to generate temporary RSA
   * parameters. These are needed for export cipher suites.
   */
#define GNUTLS_E_NO_TEMPORARY_RSA_PARAMS -84

#define GNUTLS_E_NO_COMPRESSION_ALGORITHMS -86
#define GNUTLS_E_NO_CIPHER_SUITES -87

#define GNUTLS_E_OPENPGP_GETKEY_FAILED -88
#define GNUTLS_E_PK_SIG_VERIFY_FAILED -89

#define GNUTLS_E_ILLEGAL_SRP_USERNAME -90
#define GNUTLS_E_SRP_PWD_PARSING_ERROR -91
#define GNUTLS_E_NO_TEMPORARY_DH_PARAMS -93

  /* For certificate and key stuff
   */
#define GNUTLS_E_ASN1_ELEMENT_NOT_FOUND -67
#define GNUTLS_E_ASN1_IDENTIFIER_NOT_FOUND -68
#define GNUTLS_E_ASN1_DER_ERROR -69
#define GNUTLS_E_ASN1_VALUE_NOT_FOUND -70
#define GNUTLS_E_ASN1_GENERIC_ERROR -71
#define GNUTLS_E_ASN1_VALUE_NOT_VALID -72
#define GNUTLS_E_ASN1_TAG_ERROR -73
#define GNUTLS_E_ASN1_TAG_IMPLICIT -74
#define GNUTLS_E_ASN1_TYPE_ANY_ERROR -75
#define GNUTLS_E_ASN1_SYNTAX_ERROR -76
#define GNUTLS_E_ASN1_DER_OVERFLOW -77
#define GNUTLS_E_OPENPGP_UID_REVOKED -79
#define GNUTLS_E_CERTIFICATE_ERROR -43
#define GNUTLS_E_X509_CERTIFICATE_ERROR GNUTLS_E_CERTIFICATE_ERROR
#define GNUTLS_E_CERTIFICATE_KEY_MISMATCH -60
#define GNUTLS_E_UNSUPPORTED_CERTIFICATE_TYPE -61       /* GNUTLS_A_UNSUPPORTED_CERTIFICATE */
#define GNUTLS_E_X509_UNKNOWN_SAN -62
#define GNUTLS_E_OPENPGP_FINGERPRINT_UNSUPPORTED -94
#define GNUTLS_E_X509_UNSUPPORTED_ATTRIBUTE -95
#define GNUTLS_E_UNKNOWN_HASH_ALGORITHM -96
#define GNUTLS_E_UNKNOWN_PKCS_CONTENT_TYPE -97
#define GNUTLS_E_UNKNOWN_PKCS_BAG_TYPE -98
#define GNUTLS_E_INVALID_PASSWORD -99
#define GNUTLS_E_MAC_VERIFY_FAILED -100 /* for PKCS #12 MAC */
#define GNUTLS_E_CONSTRAINT_ERROR -101

#define GNUTLS_E_WARNING_IA_IPHF_RECEIVED -102
#define GNUTLS_E_WARNING_IA_FPHF_RECEIVED -103

#define GNUTLS_E_IA_VERIFY_FAILED -104
#define GNUTLS_E_UNKNOWN_ALGORITHM -105
#define GNUTLS_E_UNSUPPORTED_SIGNATURE_ALGORITHM -106
#define GNUTLS_E_SAFE_RENEGOTIATION_FAILED -107
#define GNUTLS_E_UNSAFE_RENEGOTIATION_DENIED -108
#define GNUTLS_E_UNKNOWN_SRP_USERNAME -109
#define GNUTLS_E_PREMATURE_TERMINATION -110

#define GNUTLS_E_BASE64_ENCODING_ERROR -201
#define GNUTLS_E_INCOMPATIBLE_GCRYPT_LIBRARY -202       /* obsolete */
#define GNUTLS_E_INCOMPATIBLE_CRYPTO_LIBRARY -202
#define GNUTLS_E_INCOMPATIBLE_LIBTASN1_LIBRARY -203

#define GNUTLS_E_OPENPGP_KEYRING_ERROR -204
#define GNUTLS_E_X509_UNSUPPORTED_OID -205

#define GNUTLS_E_RANDOM_FAILED -206
#define GNUTLS_E_BASE64_UNEXPECTED_HEADER_ERROR -207

#define GNUTLS_E_OPENPGP_SUBKEY_ERROR -208

#define GNUTLS_E_CRYPTO_ALREADY_REGISTERED -209

#define GNUTLS_E_HANDSHAKE_TOO_LARGE -210

#define GNUTLS_E_CRYPTODEV_IOCTL_ERROR -211
#define GNUTLS_E_CRYPTODEV_DEVICE_ERROR -212

#define GNUTLS_E_CHANNEL_BINDING_NOT_AVAILABLE -213
#define GNUTLS_E_BAD_COOKIE -214
#define GNUTLS_E_OPENPGP_PREFERRED_KEY_ERROR -215
#define GNUTLS_E_INCOMPAT_DSA_KEY_WITH_TLS_PROTOCOL -216

/* PKCS11 related */
#define GNUTLS_E_PKCS11_ERROR -300
#define GNUTLS_E_PKCS11_LOAD_ERROR -301
#define GNUTLS_E_PARSING_ERROR -302
#define GNUTLS_E_PKCS11_PIN_ERROR -303

#define GNUTLS_E_PKCS11_SLOT_ERROR -305
#define GNUTLS_E_LOCKING_ERROR -306
#define GNUTLS_E_PKCS11_ATTRIBUTE_ERROR -307
#define GNUTLS_E_PKCS11_DEVICE_ERROR -308
#define GNUTLS_E_PKCS11_DATA_ERROR -309
#define GNUTLS_E_PKCS11_UNSUPPORTED_FEATURE_ERROR -310
#define GNUTLS_E_PKCS11_KEY_ERROR -311
#define GNUTLS_E_PKCS11_PIN_EXPIRED -312
#define GNUTLS_E_PKCS11_PIN_LOCKED -313
#define GNUTLS_E_PKCS11_SESSION_ERROR -314
#define GNUTLS_E_PKCS11_SIGNATURE_ERROR -315
#define GNUTLS_E_PKCS11_TOKEN_ERROR -316
#define GNUTLS_E_PKCS11_USER_ERROR -317

#define GNUTLS_E_CRYPTO_INIT_FAILED -318
#define GNUTLS_E_TIMEDOUT -319
#define GNUTLS_E_USER_ERROR -320
#define GNUTLS_E_ECC_NO_SUPPORTED_CURVES -321
#define GNUTLS_E_ECC_UNSUPPORTED_CURVE -322
#define GNUTLS_E_PKCS11_REQUESTED_OBJECT_NOT_AVAILBLE -323
#define GNUTLS_E_CERTIFICATE_LIST_UNSORTED -324
#define GNUTLS_E_ILLEGAL_PARAMETER -325

#define GNUTLS_E_UNIMPLEMENTED_FEATURE -1250



#define GNUTLS_E_APPLICATION_ERROR_MAX -65000
#define GNUTLS_E_APPLICATION_ERROR_MIN -65500

#ifdef __cplusplus
}
#endif

#include <gnutls/compat.h>

#endif                          /* GNUTLS_H */