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
#![allow(bad_style)]
#![doc(html_root_url = "https://docs.rs/curl-sys/0.3")]

extern crate libc;
#[cfg(not(target_env = "msvc"))]
extern crate libz_sys;
#[cfg(all(unix, not(target_os = "macos")))]
extern crate openssl_sys;
#[cfg(windows)]
extern crate winapi;

use libc::{c_int, c_char, c_uint, c_short, c_long, c_double, c_void, size_t, time_t};
use libc::c_ulong;

#[cfg(unix)]
pub use libc::fd_set;
#[cfg(windows)]
pub use winapi::um::winsock2::fd_set;
#[cfg(windows)]
use winapi::shared::ws2def::SOCKADDR;

#[cfg(target_env = "msvc")]
#[doc(hidden)]
pub type __enum_ty = libc::c_int;
#[cfg(not(target_env = "msvc"))]
#[doc(hidden)]
pub type __enum_ty = libc::c_uint;

pub type CURLINFO = __enum_ty;
pub type CURLoption = __enum_ty;
pub type CURLcode = __enum_ty;
pub type CURLversion = __enum_ty;
pub type curl_off_t = i64;

pub enum CURL {}

#[cfg(unix)]
pub type curl_socket_t = libc::c_int;
#[cfg(unix)]
pub const CURL_SOCKET_BAD: curl_socket_t = -1;
#[cfg(all(windows, target_pointer_width = "32"))]
pub type curl_socket_t = libc::c_uint;
#[cfg(all(windows, target_pointer_width = "64"))]
pub type curl_socket_t = u64;
#[cfg(windows)]
pub const CURL_SOCKET_BAD: curl_socket_t = !0;

pub enum curl_httppost {
    // Note that this changed in some versions of libcurl, so we currently don't
    // bind the fields as they're apparently not stable.
    // pub next: *mut curl_httppost,
    // pub name: *mut c_char,
    // pub namelength: c_long,
    // pub contents: *mut c_char,
    // pub contentslength: c_long,
    // pub buffer: *mut c_char,
    // pub bufferlength: c_long,
    // pub contenttype: *mut c_char,
    // pub contentheader: *mut curl_slist,
    // pub more: *mut curl_httppost,
    // pub flags: c_long,
    // pub showfilename: *mut c_char,
    // pub userp: *mut c_void,
}

// pub const HTTPPOST_FILENAME: c_long = 1 << 0;
// pub const HTTPPOST_READFILE: c_long = 1 << 1;
// pub const HTTPPOST_PTRNAME: c_long = 1 << 2;
// pub const HTTPPOST_PTRCONTENTS: c_long = 1 << 3;
// pub const HTTPPOST_BUFFER: c_long = 1 << 4;
// pub const HTTPPOST_PTRBUFFER: c_long = 1 << 5;
// pub const HTTPPOST_CALLBACK: c_long = 1 << 6;

pub type curl_progress_callback = extern fn(*mut c_void,
                                            c_double,
                                            c_double,
                                            c_double,
                                            c_double) -> c_int;
// pub type curl_xferinfo_callback = extern fn(*mut c_void,
//                                             curl_off_t,
//                                             curl_off_t,
//                                             curl_off_t,
//                                             curl_off_t) -> c_int;

pub const CURL_WRITEFUNC_PAUSE: size_t = 0x10000001;

pub type curl_write_callback = extern fn(*mut c_char,
                                         size_t,
                                         size_t,
                                         *mut c_void) -> size_t;

pub type curlfiletype = __enum_ty;
pub const CURLFILETYPE_FILE: curlfiletype = 0;
pub const CURLFILETYPE_DIRECTORY: curlfiletype = 1;
pub const CURLFILETYPE_SYMLINK: curlfiletype = 2;
pub const CURLFILETYPE_DEVICE_BLOCK: curlfiletype = 3;
pub const CURLFILETYPE_DEVICE_CHAR: curlfiletype = 4;
pub const CURLFILETYPE_NAMEDPIPE: curlfiletype = 5;
pub const CURLFILETYPE_SOCKET: curlfiletype = 6;
pub const CURLFILETYPE_DOOR: curlfiletype = 7;
pub const CURLFILETYPE_UNKNOWN: curlfiletype = 8;

pub const CURLFINFOFLAG_KNOWN_FILENAME: c_uint = 1 << 0;
pub const CURLFINFOFLAG_KNOWN_FILETYPE: c_uint = 1 << 1;
pub const CURLFINFOFLAG_KNOWN_TIME: c_uint = 1 << 2;
pub const CURLFINFOFLAG_KNOWN_PERM: c_uint = 1 << 3;
pub const CURLFINFOFLAG_KNOWN_UID: c_uint = 1 << 4;
pub const CURLFINFOFLAG_KNOWN_GID: c_uint = 1 << 5;
pub const CURLFINFOFLAG_KNOWN_SIZE: c_uint = 1 << 6;
pub const CURLFINFOFLAG_KNOWN_HLINKCOUNT: c_uint = 1 << 7;

#[repr(C)]
pub struct curl_fileinfo {
    pub filename: *mut c_char,
    pub filetype: curlfiletype,
    pub time: time_t,
    pub perm: c_uint,
    pub uid: c_int,
    pub gid: c_int,
    pub size: curl_off_t,
    pub hardlinks: c_long,

    pub strings_time: *mut c_char,
    pub strings_perm: *mut c_char,
    pub strings_user: *mut c_char,
    pub strings_group: *mut c_char,
    pub strings_target: *mut c_char,

    pub flags: c_uint,
    pub b_data: *mut c_char,
    pub b_size: size_t,
    pub b_used: size_t,
}

pub const CURL_CHUNK_BGN_FUNC_OK: c_long = 0;
pub const CURL_CHUNK_BGN_FUNC_FAIL: c_long = 1;
pub const CURL_CHUNK_BGN_FUNC_SKIP: c_long = 2;
pub type curl_chunk_bgn_callback = extern fn(*const c_void,
                                             *mut c_void,
                                             c_int) -> c_long;

pub const CURL_CHUNK_END_FUNC_OK: c_long = 0;
pub const CURL_CHUNK_END_FUNC_FAIL: c_long = 1;
pub type curl_chunk_end_callback = extern fn(*mut c_void) -> c_long;

pub const CURL_FNMATCHFUNC_MATCH: c_int = 0;
pub const CURL_FNMATCHFUNC_NOMATCH: c_int = 1;
pub const CURL_FNMATCHFUNC_FAIL: c_int = 2;
pub type curl_fnmatch_callback = extern fn(*mut c_void,
                                           *const c_char,
                                           *const c_char) -> c_int;

pub const CURL_SEEKFUNC_OK: c_int = 0;
pub const CURL_SEEKFUNC_FAIL: c_int = 1;
pub const CURL_SEEKFUNC_CANTSEEK: c_int = 2;
pub type curl_seek_callback = extern fn(*mut c_void,
                                        curl_off_t,
                                        c_int) -> c_int;

pub const CURL_READFUNC_ABORT: size_t = 0x10000000;
pub const CURL_READFUNC_PAUSE: size_t = 0x10000001;
pub type curl_read_callback = extern fn(*mut c_char,
                                        size_t,
                                        size_t,
                                        *mut c_void) -> size_t;

// pub const CURL_SOCKOPT_OK: c_int = 0;
// pub const CURL_SOCKOPT_ERROR: c_int = 1;
// pub const CURL_SOCKOPT_ALREADY_CONNECTED: c_int = 2;
// pub type curl_sockopt_callback = extern fn(*mut c_void,
//                                            curl_socket_t,
//                                            curlsocktype) -> c_int;

pub type curlioerr = __enum_ty;
pub const CURLIOE_OK: curlioerr = 0;
pub const CURLIOE_UNKNOWNCMD: curlioerr = 1;
pub const CURLIOE_FAILRESTART: curlioerr = 2;

pub type curliocmd = __enum_ty;
pub const CURLIOCMD_NOP: curliocmd = 0;
pub const CURLIOCMD_RESTARTREAD: curliocmd = 1;

pub type curl_ioctl_callback = extern fn(*mut CURL, c_int, *mut c_void) -> curlioerr;

pub type curl_malloc_callback = extern fn(size_t) -> *mut c_void;
pub type curl_free_callback = extern fn(*mut c_void);
pub type curl_realloc_callback = extern fn(*mut c_void, size_t) -> *mut c_void;
pub type curl_strdup_callback = extern fn(*const c_char) -> *mut c_char;
pub type curl_calloc_callback = extern fn(size_t, size_t) -> *mut c_void;

pub type curl_infotype = __enum_ty;
pub const CURLINFO_TEXT: curl_infotype = 0;
pub const CURLINFO_HEADER_IN: curl_infotype = 1;
pub const CURLINFO_HEADER_OUT: curl_infotype = 2;
pub const CURLINFO_DATA_IN: curl_infotype = 3;
pub const CURLINFO_DATA_OUT: curl_infotype = 4;
pub const CURLINFO_SSL_DATA_IN: curl_infotype = 5;
pub const CURLINFO_SSL_DATA_OUT: curl_infotype = 6;

pub type curl_debug_callback = extern fn(*mut CURL,
                                         curl_infotype,
                                         *mut c_char,
                                         size_t,
                                         *mut c_void) -> c_int;

pub const CURLE_OK: CURLcode = 0;
pub const CURLE_UNSUPPORTED_PROTOCOL: CURLcode = 1;
pub const CURLE_FAILED_INIT: CURLcode = 2;
pub const CURLE_URL_MALFORMAT: CURLcode = 3;
// pub const CURLE_NOT_BUILT_IN: CURLcode = 4;
pub const CURLE_COULDNT_RESOLVE_PROXY: CURLcode = 5;
pub const CURLE_COULDNT_RESOLVE_HOST: CURLcode = 6;
pub const CURLE_COULDNT_CONNECT: CURLcode = 7;
pub const CURLE_FTP_WEIRD_SERVER_REPLY: CURLcode = 8;
pub const CURLE_REMOTE_ACCESS_DENIED: CURLcode = 9;
// pub const CURLE_FTP_ACCEPT_FAILED: CURLcode = 10;
pub const CURLE_FTP_WEIRD_PASS_REPLY: CURLcode = 11;
// pub const CURLE_FTP_ACCEPT_TIMEOUT: CURLcode = 12;
pub const CURLE_FTP_WEIRD_PASV_REPLY: CURLcode = 13;
pub const CURLE_FTP_WEIRD_227_FORMAT: CURLcode = 14;
pub const CURLE_FTP_CANT_GET_HOST: CURLcode = 15;
pub const CURLE_OBSOLETE16: CURLcode = 16;
pub const CURLE_FTP_COULDNT_SET_TYPE: CURLcode = 17;
pub const CURLE_PARTIAL_FILE: CURLcode = 18;
pub const CURLE_FTP_COULDNT_RETR_FILE: CURLcode = 19;
pub const CURLE_OBSOLETE20: CURLcode = 20;
pub const CURLE_QUOTE_ERROR: CURLcode = 21;
pub const CURLE_HTTP_RETURNED_ERROR: CURLcode = 22;
pub const CURLE_WRITE_ERROR: CURLcode = 23;
pub const CURLE_OBSOLETE24: CURLcode = 24;
pub const CURLE_UPLOAD_FAILED: CURLcode = 25;
pub const CURLE_READ_ERROR: CURLcode = 26;
pub const CURLE_OUT_OF_MEMORY: CURLcode = 27;
pub const CURLE_OPERATION_TIMEDOUT: CURLcode = 28;
pub const CURLE_OBSOLETE29: CURLcode = 29;
pub const CURLE_FTP_PORT_FAILED: CURLcode = 30;
pub const CURLE_FTP_COULDNT_USE_REST: CURLcode = 31;
pub const CURLE_OBSOLETE32: CURLcode = 32;
pub const CURLE_RANGE_ERROR: CURLcode = 33;
pub const CURLE_HTTP_POST_ERROR: CURLcode = 34;
pub const CURLE_SSL_CONNECT_ERROR: CURLcode = 35;
pub const CURLE_BAD_DOWNLOAD_RESUME: CURLcode = 36;
pub const CURLE_FILE_COULDNT_READ_FILE: CURLcode = 37;
pub const CURLE_LDAP_CANNOT_BIND: CURLcode = 38;
pub const CURLE_LDAP_SEARCH_FAILED: CURLcode = 39;
pub const CURLE_OBSOLETE40: CURLcode = 40;
pub const CURLE_FUNCTION_NOT_FOUND: CURLcode = 41;
pub const CURLE_ABORTED_BY_CALLBACK: CURLcode = 42;
pub const CURLE_BAD_FUNCTION_ARGUMENT: CURLcode = 43;
pub const CURLE_OBSOLETE44: CURLcode = 44;
pub const CURLE_INTERFACE_FAILED: CURLcode = 45;
pub const CURLE_OBSOLETE46: CURLcode = 46;
pub const CURLE_TOO_MANY_REDIRECTS : CURLcode = 47;
pub const CURLE_UNKNOWN_OPTION: CURLcode = 48;
pub const CURLE_TELNET_OPTION_SYNTAX : CURLcode = 49;
pub const CURLE_OBSOLETE50: CURLcode = 50;
pub const CURLE_PEER_FAILED_VERIFICATION: CURLcode = 51;
pub const CURLE_GOT_NOTHING: CURLcode = 52;
pub const CURLE_SSL_ENGINE_NOTFOUND: CURLcode = 53;
pub const CURLE_SSL_ENGINE_SETFAILED: CURLcode = 54;
pub const CURLE_SEND_ERROR: CURLcode = 55;
pub const CURLE_RECV_ERROR: CURLcode = 56;
pub const CURLE_OBSOLETE57: CURLcode = 57;
pub const CURLE_SSL_CERTPROBLEM: CURLcode = 58;
pub const CURLE_SSL_CIPHER: CURLcode = 59;
pub const CURLE_SSL_CACERT: CURLcode = 60;
pub const CURLE_BAD_CONTENT_ENCODING: CURLcode = 61;
pub const CURLE_LDAP_INVALID_URL: CURLcode = 62;
pub const CURLE_FILESIZE_EXCEEDED: CURLcode = 63;
pub const CURLE_USE_SSL_FAILED: CURLcode = 64;
pub const CURLE_SEND_FAIL_REWIND: CURLcode = 65;
pub const CURLE_SSL_ENGINE_INITFAILED: CURLcode = 66;
pub const CURLE_LOGIN_DENIED: CURLcode = 67;
pub const CURLE_TFTP_NOTFOUND: CURLcode = 68;
pub const CURLE_TFTP_PERM: CURLcode = 69;
pub const CURLE_REMOTE_DISK_FULL: CURLcode = 70;
pub const CURLE_TFTP_ILLEGAL: CURLcode = 71;
pub const CURLE_TFTP_UNKNOWNID: CURLcode = 72;
pub const CURLE_REMOTE_FILE_EXISTS: CURLcode = 73;
pub const CURLE_TFTP_NOSUCHUSER: CURLcode = 74;
pub const CURLE_CONV_FAILED: CURLcode = 75;
pub const CURLE_CONV_REQD: CURLcode = 76;
pub const CURLE_SSL_CACERT_BADFILE: CURLcode = 77;
pub const CURLE_REMOTE_FILE_NOT_FOUND: CURLcode = 78;
pub const CURLE_SSH: CURLcode = 79;
pub const CURLE_SSL_SHUTDOWN_FAILED: CURLcode = 80;
pub const CURLE_AGAIN: CURLcode = 81;
pub const CURLE_SSL_CRL_BADFILE: CURLcode = 82;
pub const CURLE_SSL_ISSUER_ERROR: CURLcode = 83;
pub const CURLE_FTP_PRET_FAILED: CURLcode = 84;
pub const CURLE_RTSP_CSEQ_ERROR: CURLcode = 85;
pub const CURLE_RTSP_SESSION_ERROR: CURLcode = 86;
pub const CURLE_FTP_BAD_FILE_LIST: CURLcode = 87;
pub const CURLE_CHUNK_FAILED: CURLcode = 88;
// pub const CURLE_NO_CONNECTION_AVAILABLE: CURLcode = 89;

pub type curl_conv_callback = extern fn(*mut c_char, size_t) -> CURLcode;
pub type curl_ssl_ctx_callback = extern fn(*mut CURL,
                                           *mut c_void,
                                           *mut c_void) -> CURLcode;

pub type curl_proxytype = __enum_ty;
pub const CURLPROXY_HTTP: curl_proxytype = 0;
pub const CURLPROXY_HTTP_1_0: curl_proxytype = 1;
pub const CURLPROXY_SOCKS4: curl_proxytype = 4;
pub const CURLPROXY_SOCKS5: curl_proxytype = 5;
pub const CURLPROXY_SOCKS4A: curl_proxytype = 6;
pub const CURLPROXY_SOCKS5_HOSTNAME: curl_proxytype = 7;

pub const CURLAUTH_NONE: c_ulong = 0;
pub const CURLAUTH_BASIC: c_ulong = 1 << 0;
pub const CURLAUTH_DIGEST: c_ulong =  1 << 1;
pub const CURLAUTH_GSSNEGOTIATE: c_ulong = 1 << 2;
pub const CURLAUTH_NTLM: c_ulong = 1 << 3;
pub const CURLAUTH_DIGEST_IE: c_ulong =  1 << 4;
pub const CURLAUTH_NTLM_WB: c_ulong = 1 << 5;
// pub const CURLAUTH_ONLY: c_ulong = 1 << 31;
pub const CURLAUTH_ANY: c_ulong = !CURLAUTH_DIGEST_IE;
pub const CURLAUTH_ANYSAFE: c_ulong = !(CURLAUTH_BASIC | CURLAUTH_DIGEST_IE);

// pub const CURLSSH_AUTH_ANY: c_ulong = !0;
// pub const CURLSSH_AUTH_NONE: c_ulong = 0;
// pub const CURLSSH_AUTH_PUBLICKEY: c_ulong = 1 << 0;
// pub const CURLSSH_AUTH_PASSWORD: c_ulong = 1 << 1;
// pub const CURLSSH_AUTH_HOST: c_ulong = 1 << 2;
// pub const CURLSSH_AUTH_KEYBOARD: c_ulong = 1 << 3;
// pub const CURLSSH_AUTH_AGENT: c_ulong = 1 << 4;
// pub const CURLSSH_AUTH_DEFAULT: c_ulong = CURLSSH_AUTH_ANY;

pub const CURLGSSAPI_DELEGATION_NONE: c_ulong = 0;
pub const CURLGSSAPI_DELEGATION_POLICY_FLAG: c_ulong = 1 << 0;
pub const CURLGSSAPI_DELEGATION_FLAG: c_ulong = 1 << 1;

// pub type curl_khtype = __enum_ty;
// pub const CURLKHTYPE_UNKNOWN: curl_khtype = 0;
// pub const CURLKHTYPE_RSA1: curl_khtype = 1;
// pub const CURLKHTYPE_RSA: curl_khtype = 2;
// pub const CURLKHTYPE_DSS: curl_khtype = 3;

// #[repr(C)]
// pub struct curl_khkey {
//     pub key: *const c_char,
//     pub len: size_t,
//     pub keytype: curl_khtype,
// }

// pub type curl_khstat = __enum_ty;
// pub const CURLKHSTAT_FINE_ADD_TO_FILE: curl_khstat = 0;
// pub const CURLKHSTAT_FINE: curl_khstat = 1;
// pub const CURLKHSTAT_REJECT: curl_khstat = 2;
// pub const CURLKHSTAT_DEFER: curl_khstat = 3;
//
// pub type curl_khmatch = __enum_ty;
// pub const CURLKHMATCH_OK: curl_khmatch = 0;
// pub const CURLKHMATCH_MISMATCH: curl_khmatch = 1;
// pub const CURLKHMATCH_MISSING: curl_khmatch = 2;

// pub type curl_sshkeycallback = extern fn(*mut CURL,
//                                          *const curl_khkey,
//                                          *const curl_khkey,
//                                          curl_khmatch,
//                                          *mut c_void) -> c_int;

pub const CURL_NETRC_IGNORED: c_ulong = 0;
pub const CURL_NETRC_OPTIONAL: c_ulong = 1;
pub const CURL_NETRC_REQUIRED: c_ulong = 2;

pub type curl_usessl = __enum_ty;
pub const CURLUSESSL_NONE: curl_usessl = 0;
pub const CURLUSESSL_TRY: curl_usessl = 1;
pub const CURLUSESSL_CONTROL: curl_usessl = 2;
pub const CURLUSESSL_ALL: curl_usessl = 3;

pub const CURLPROTO_HTTP: c_int = 1 << 0;
pub const CURLPROTO_HTTPS: c_int = 1 << 1;
pub const CURLPROTO_FILE: c_int = 1 << 10;

pub const CURLOPTTYPE_LONG: CURLoption = 0;
pub const CURLOPTTYPE_OBJECTPOINT: CURLoption = 10_000;
pub const CURLOPTTYPE_FUNCTIONPOINT: CURLoption = 20_000;
pub const CURLOPTTYPE_OFF_T: CURLoption = 30_000;

pub const CURLOPT_FILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 1;
pub const CURLOPT_URL: CURLoption = CURLOPTTYPE_OBJECTPOINT + 2;
pub const CURLOPT_PORT: CURLoption = CURLOPTTYPE_LONG + 3;
pub const CURLOPT_PROXY: CURLoption = CURLOPTTYPE_OBJECTPOINT + 4;
pub const CURLOPT_USERPWD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 5;
pub const CURLOPT_PROXYUSERPWD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 6;
pub const CURLOPT_RANGE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 7;
pub const CURLOPT_INFILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 9;
pub const CURLOPT_ERRORBUFFER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 10;
pub const CURLOPT_WRITEFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 11;
pub const CURLOPT_READFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 12;
pub const CURLOPT_TIMEOUT: CURLoption = CURLOPTTYPE_LONG + 13;
pub const CURLOPT_INFILESIZE: CURLoption = CURLOPTTYPE_LONG + 14;
pub const CURLOPT_POSTFIELDS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 15;
pub const CURLOPT_REFERER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 16;
pub const CURLOPT_FTPPORT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 17;
pub const CURLOPT_USERAGENT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 18;
pub const CURLOPT_LOW_SPEED_LIMIT: CURLoption = CURLOPTTYPE_LONG + 19;
pub const CURLOPT_LOW_SPEED_TIME: CURLoption = CURLOPTTYPE_LONG + 20;
pub const CURLOPT_RESUME_FROM: CURLoption = CURLOPTTYPE_LONG + 21;
pub const CURLOPT_COOKIE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 22;
pub const CURLOPT_HTTPHEADER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 23;
pub const CURLOPT_HTTPPOST: CURLoption = CURLOPTTYPE_OBJECTPOINT + 24;
pub const CURLOPT_SSLCERT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 25;
pub const CURLOPT_KEYPASSWD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 26;
pub const CURLOPT_CRLF: CURLoption = CURLOPTTYPE_LONG + 27;
pub const CURLOPT_QUOTE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 28;
pub const CURLOPT_WRITEHEADER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 29;
pub const CURLOPT_COOKIEFILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 31;
pub const CURLOPT_SSLVERSION: CURLoption = CURLOPTTYPE_LONG + 32;
pub const CURLOPT_TIMECONDITION: CURLoption = CURLOPTTYPE_LONG + 33;
pub const CURLOPT_TIMEVALUE: CURLoption = CURLOPTTYPE_LONG + 34;
pub const CURLOPT_CUSTOMREQUEST: CURLoption = CURLOPTTYPE_OBJECTPOINT + 36;
pub const CURLOPT_STDERR: CURLoption = CURLOPTTYPE_OBJECTPOINT + 37;
pub const CURLOPT_POSTQUOTE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 39;
pub const CURLOPT_WRITEINFO: CURLoption = CURLOPTTYPE_OBJECTPOINT + 40;
pub const CURLOPT_VERBOSE: CURLoption = CURLOPTTYPE_LONG + 41;
pub const CURLOPT_HEADER: CURLoption = CURLOPTTYPE_LONG + 42;
pub const CURLOPT_NOPROGRESS: CURLoption = CURLOPTTYPE_LONG + 43;
pub const CURLOPT_NOBODY: CURLoption = CURLOPTTYPE_LONG + 44;
pub const CURLOPT_FAILONERROR: CURLoption = CURLOPTTYPE_LONG + 45;
pub const CURLOPT_UPLOAD: CURLoption = CURLOPTTYPE_LONG + 46;
pub const CURLOPT_POST: CURLoption = CURLOPTTYPE_LONG + 47;
pub const CURLOPT_DIRLISTONLY: CURLoption = CURLOPTTYPE_LONG + 48;
pub const CURLOPT_APPEND: CURLoption = CURLOPTTYPE_LONG + 50;
pub const CURLOPT_NETRC: CURLoption = CURLOPTTYPE_LONG + 51;
pub const CURLOPT_FOLLOWLOCATION: CURLoption = CURLOPTTYPE_LONG + 52;
pub const CURLOPT_TRANSFERTEXT: CURLoption = CURLOPTTYPE_LONG + 53;
pub const CURLOPT_PUT: CURLoption = CURLOPTTYPE_LONG + 54;
pub const CURLOPT_PROGRESSFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 56;
pub const CURLOPT_PROGRESSDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 57;
pub const CURLOPT_AUTOREFERER: CURLoption = CURLOPTTYPE_LONG + 58;
pub const CURLOPT_PROXYPORT: CURLoption = CURLOPTTYPE_LONG + 59;
pub const CURLOPT_POSTFIELDSIZE: CURLoption = CURLOPTTYPE_LONG + 60;
pub const CURLOPT_HTTPPROXYTUNNEL: CURLoption = CURLOPTTYPE_LONG + 61;
pub const CURLOPT_INTERFACE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 62;
pub const CURLOPT_KRBLEVEL: CURLoption = CURLOPTTYPE_OBJECTPOINT + 63;
pub const CURLOPT_SSL_VERIFYPEER: CURLoption = CURLOPTTYPE_LONG + 64;
pub const CURLOPT_CAINFO: CURLoption = CURLOPTTYPE_OBJECTPOINT + 65;
pub const CURLOPT_MAXREDIRS: CURLoption = CURLOPTTYPE_LONG + 68;
pub const CURLOPT_FILETIME: CURLoption = CURLOPTTYPE_LONG + 69;
pub const CURLOPT_TELNETOPTIONS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 70;
pub const CURLOPT_MAXCONNECTS: CURLoption = CURLOPTTYPE_LONG + 71;
pub const CURLOPT_CLOSEPOLICY: CURLoption = CURLOPTTYPE_LONG + 72;
pub const CURLOPT_FRESH_CONNECT: CURLoption = CURLOPTTYPE_LONG + 74;
pub const CURLOPT_FORBID_REUSE: CURLoption = CURLOPTTYPE_LONG + 75;
pub const CURLOPT_RANDOM_FILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 76;
pub const CURLOPT_EGDSOCKET: CURLoption = CURLOPTTYPE_OBJECTPOINT + 77;
pub const CURLOPT_CONNECTTIMEOUT: CURLoption = CURLOPTTYPE_LONG + 78;
pub const CURLOPT_HEADERFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 79;
pub const CURLOPT_HTTPGET: CURLoption = CURLOPTTYPE_LONG + 80;
pub const CURLOPT_SSL_VERIFYHOST: CURLoption = CURLOPTTYPE_LONG + 81;
pub const CURLOPT_COOKIEJAR: CURLoption = CURLOPTTYPE_OBJECTPOINT + 82;
pub const CURLOPT_SSL_CIPHER_LIST: CURLoption = CURLOPTTYPE_OBJECTPOINT + 83;
pub const CURLOPT_HTTP_VERSION: CURLoption = CURLOPTTYPE_LONG + 84;
pub const CURLOPT_FTP_USE_EPSV: CURLoption = CURLOPTTYPE_LONG + 85;
pub const CURLOPT_SSLCERTTYPE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 86;
pub const CURLOPT_SSLKEY: CURLoption = CURLOPTTYPE_OBJECTPOINT + 87;
pub const CURLOPT_SSLKEYTYPE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 88;
pub const CURLOPT_SSLENGINE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 89;
pub const CURLOPT_SSLENGINE_DEFAULT: CURLoption = CURLOPTTYPE_LONG + 90;
pub const CURLOPT_DNS_USE_GLOBAL_CACHE: CURLoption = CURLOPTTYPE_LONG + 91;
pub const CURLOPT_DNS_CACHE_TIMEOUT: CURLoption = CURLOPTTYPE_LONG + 92;
pub const CURLOPT_PREQUOTE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 93;
pub const CURLOPT_DEBUGFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 94;
pub const CURLOPT_DEBUGDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 95;
pub const CURLOPT_COOKIESESSION: CURLoption = CURLOPTTYPE_LONG + 96;
pub const CURLOPT_CAPATH: CURLoption = CURLOPTTYPE_OBJECTPOINT + 97;
pub const CURLOPT_BUFFERSIZE: CURLoption = CURLOPTTYPE_LONG + 98;
pub const CURLOPT_NOSIGNAL: CURLoption = CURLOPTTYPE_LONG + 99;
pub const CURLOPT_SHARE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 100;
pub const CURLOPT_PROXYTYPE: CURLoption = CURLOPTTYPE_LONG + 101;
pub const CURLOPT_ACCEPT_ENCODING: CURLoption = CURLOPTTYPE_OBJECTPOINT + 102;
pub const CURLOPT_PRIVATE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 103;
pub const CURLOPT_HTTP200ALIASES: CURLoption = CURLOPTTYPE_OBJECTPOINT + 104;
pub const CURLOPT_UNRESTRICTED_AUTH: CURLoption = CURLOPTTYPE_LONG + 105;
pub const CURLOPT_FTP_USE_EPRT: CURLoption = CURLOPTTYPE_LONG + 106;
pub const CURLOPT_HTTPAUTH: CURLoption = CURLOPTTYPE_LONG + 107;
pub const CURLOPT_SSL_CTX_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 108;
pub const CURLOPT_SSL_CTX_DATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 109;
pub const CURLOPT_FTP_CREATE_MISSING_DIRS: CURLoption = CURLOPTTYPE_LONG + 110;
pub const CURLOPT_PROXYAUTH: CURLoption = CURLOPTTYPE_LONG + 111;
pub const CURLOPT_FTP_RESPONSE_TIMEOUT: CURLoption = CURLOPTTYPE_LONG + 112;
pub const CURLOPT_IPRESOLVE: CURLoption = CURLOPTTYPE_LONG + 113;
pub const CURLOPT_MAXFILESIZE: CURLoption = CURLOPTTYPE_LONG + 114;
pub const CURLOPT_INFILESIZE_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 115;
pub const CURLOPT_RESUME_FROM_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 116;
pub const CURLOPT_MAXFILESIZE_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 117;
pub const CURLOPT_NETRC_FILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 118;
pub const CURLOPT_USE_SSL: CURLoption = CURLOPTTYPE_LONG + 119;
pub const CURLOPT_POSTFIELDSIZE_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 120;
pub const CURLOPT_TCP_NODELAY: CURLoption = CURLOPTTYPE_LONG + 121;
pub const CURLOPT_FTPSSLAUTH: CURLoption = CURLOPTTYPE_LONG + 129;
pub const CURLOPT_IOCTLFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 130;
pub const CURLOPT_IOCTLDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 131;
pub const CURLOPT_FTP_ACCOUNT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 134;
pub const CURLOPT_COOKIELIST: CURLoption = CURLOPTTYPE_OBJECTPOINT + 135;
pub const CURLOPT_IGNORE_CONTENT_LENGTH: CURLoption = CURLOPTTYPE_LONG + 136;
pub const CURLOPT_FTP_SKIP_PASV_IP: CURLoption = CURLOPTTYPE_LONG + 137;
pub const CURLOPT_FTP_FILEMETHOD: CURLoption = CURLOPTTYPE_LONG + 138;
pub const CURLOPT_LOCALPORT: CURLoption = CURLOPTTYPE_LONG + 139;
pub const CURLOPT_LOCALPORTRANGE: CURLoption = CURLOPTTYPE_LONG + 140;
pub const CURLOPT_CONNECT_ONLY: CURLoption = CURLOPTTYPE_LONG + 141;
pub const CURLOPT_CONV_FROM_NETWORK_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 142;
pub const CURLOPT_CONV_TO_NETWORK_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 143;
pub const CURLOPT_CONV_FROM_UTF8_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 144;
pub const CURLOPT_MAX_SEND_SPEED_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 145;
pub const CURLOPT_MAX_RECV_SPEED_LARGE: CURLoption = CURLOPTTYPE_OFF_T + 146;
pub const CURLOPT_FTP_ALTERNATIVE_TO_USER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 147;
pub const CURLOPT_SOCKOPTFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 148;
pub const CURLOPT_SOCKOPTDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 149;
pub const CURLOPT_SSL_SESSIONID_CACHE: CURLoption = CURLOPTTYPE_LONG + 150;
pub const CURLOPT_SSH_AUTH_TYPES: CURLoption = CURLOPTTYPE_LONG + 151;
pub const CURLOPT_SSH_PUBLIC_KEYFILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 152;
pub const CURLOPT_SSH_PRIVATE_KEYFILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 153;
pub const CURLOPT_FTP_SSL_CCC: CURLoption = CURLOPTTYPE_LONG + 154;
pub const CURLOPT_TIMEOUT_MS: CURLoption = CURLOPTTYPE_LONG + 155;
pub const CURLOPT_CONNECTTIMEOUT_MS: CURLoption = CURLOPTTYPE_LONG + 156;
pub const CURLOPT_HTTP_TRANSFER_DECODING: CURLoption = CURLOPTTYPE_LONG + 157;
pub const CURLOPT_HTTP_CONTENT_DECODING: CURLoption = CURLOPTTYPE_LONG + 158;
pub const CURLOPT_NEW_FILE_PERMS: CURLoption = CURLOPTTYPE_LONG + 159;
pub const CURLOPT_NEW_DIRECTORY_PERMS: CURLoption = CURLOPTTYPE_LONG + 160;
pub const CURLOPT_POSTREDIR: CURLoption = CURLOPTTYPE_LONG + 161;
pub const CURLOPT_SSH_HOST_PUBLIC_KEY_MD5: CURLoption = CURLOPTTYPE_OBJECTPOINT + 162;
pub const CURLOPT_OPENSOCKETFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 163;
pub const CURLOPT_OPENSOCKETDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 164;
pub const CURLOPT_COPYPOSTFIELDS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 165;
pub const CURLOPT_PROXY_TRANSFER_MODE: CURLoption = CURLOPTTYPE_LONG + 166;
pub const CURLOPT_SEEKFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 167;
pub const CURLOPT_SEEKDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 168;
pub const CURLOPT_CRLFILE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 169;
pub const CURLOPT_ISSUERCERT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 170;
pub const CURLOPT_ADDRESS_SCOPE: CURLoption = CURLOPTTYPE_LONG + 171;
pub const CURLOPT_CERTINFO: CURLoption = CURLOPTTYPE_LONG + 172;
pub const CURLOPT_USERNAME: CURLoption = CURLOPTTYPE_OBJECTPOINT + 173;
pub const CURLOPT_PASSWORD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 174;
pub const CURLOPT_PROXYUSERNAME: CURLoption = CURLOPTTYPE_OBJECTPOINT + 175;
pub const CURLOPT_PROXYPASSWORD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 176;
pub const CURLOPT_NOPROXY: CURLoption = CURLOPTTYPE_OBJECTPOINT + 177;
pub const CURLOPT_TFTP_BLKSIZE: CURLoption = CURLOPTTYPE_LONG + 178;
pub const CURLOPT_SOCKS5_GSSAPI_SERVICE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 179;
pub const CURLOPT_SOCKS5_GSSAPI_NEC: CURLoption = CURLOPTTYPE_LONG + 180;
pub const CURLOPT_PROTOCOLS: CURLoption = CURLOPTTYPE_LONG + 181;
pub const CURLOPT_REDIR_PROTOCOLS: CURLoption = CURLOPTTYPE_LONG + 182;
pub const CURLOPT_SSH_KNOWNHOSTS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 183;
pub const CURLOPT_SSH_KEYFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 184;
pub const CURLOPT_SSH_KEYDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 185;
pub const CURLOPT_MAIL_FROM: CURLoption = CURLOPTTYPE_OBJECTPOINT + 186;
pub const CURLOPT_MAIL_RCPT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 187;
pub const CURLOPT_FTP_USE_PRET: CURLoption = CURLOPTTYPE_LONG + 188;
pub const CURLOPT_RTSP_REQUEST: CURLoption = CURLOPTTYPE_LONG + 189;
pub const CURLOPT_RTSP_SESSION_ID: CURLoption = CURLOPTTYPE_OBJECTPOINT + 190;
pub const CURLOPT_RTSP_STREAM_URI: CURLoption = CURLOPTTYPE_OBJECTPOINT + 191;
pub const CURLOPT_RTSP_TRANSPORT: CURLoption = CURLOPTTYPE_OBJECTPOINT + 192;
pub const CURLOPT_RTSP_CLIENT_CSEQ: CURLoption = CURLOPTTYPE_LONG + 193;
pub const CURLOPT_RTSP_SERVER_CSEQ: CURLoption = CURLOPTTYPE_LONG + 194;
pub const CURLOPT_INTERLEAVEDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 195;
pub const CURLOPT_INTERLEAVEFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 196;
pub const CURLOPT_WILDCARDMATCH: CURLoption = CURLOPTTYPE_LONG + 197;
pub const CURLOPT_CHUNK_BGN_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 198;
pub const CURLOPT_CHUNK_END_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 199;
pub const CURLOPT_FNMATCH_FUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 200;
pub const CURLOPT_CHUNK_DATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 201;
pub const CURLOPT_FNMATCH_DATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 202;
pub const CURLOPT_RESOLVE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 203;
pub const CURLOPT_TLSAUTH_USERNAME: CURLoption = CURLOPTTYPE_OBJECTPOINT + 204;
pub const CURLOPT_TLSAUTH_PASSWORD: CURLoption = CURLOPTTYPE_OBJECTPOINT + 205;
pub const CURLOPT_TLSAUTH_TYPE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 206;
pub const CURLOPT_TRANSFER_ENCODING: CURLoption = CURLOPTTYPE_LONG + 207;
pub const CURLOPT_CLOSESOCKETFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 208;
pub const CURLOPT_CLOSESOCKETDATA: CURLoption = CURLOPTTYPE_OBJECTPOINT + 209;
pub const CURLOPT_GSSAPI_DELEGATION: CURLoption = CURLOPTTYPE_LONG + 210;
// pub const CURLOPT_DNS_SERVERS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 211;
// pub const CURLOPT_ACCEPTTIMEOUT_MS: CURLoption = CURLOPTTYPE_LONG + 212;
pub const CURLOPT_TCP_KEEPALIVE: CURLoption = CURLOPTTYPE_LONG + 213;
pub const CURLOPT_TCP_KEEPIDLE: CURLoption = CURLOPTTYPE_LONG + 214;
pub const CURLOPT_TCP_KEEPINTVL: CURLoption = CURLOPTTYPE_LONG + 215;
pub const CURLOPT_SSL_OPTIONS: CURLoption = CURLOPTTYPE_LONG + 216;
// pub const CURLOPT_MAIL_AUTH: CURLoption = CURLOPTTYPE_OBJECTPOINT + 217;
// pub const CURLOPT_SASL_IR: CURLoption = CURLOPTTYPE_LONG + 218;
// pub const CURLOPT_XFERINFOFUNCTION: CURLoption = CURLOPTTYPE_FUNCTIONPOINT + 219;
// pub const CURLOPT_XOAUTH2_BEARER: CURLoption = CURLOPTTYPE_OBJECTPOINT + 220;
// pub const CURLOPT_DNS_INTERFACE: CURLoption = CURLOPTTYPE_OBJECTPOINT + 221;
// pub const CURLOPT_DNS_LOCAL_IP4: CURLoption = CURLOPTTYPE_OBJECTPOINT + 222;
// pub const CURLOPT_DNS_LOCAL_IP6: CURLoption = CURLOPTTYPE_OBJECTPOINT + 223;
// pub const CURLOPT_LOGIN_OPTIONS: CURLoption = CURLOPTTYPE_OBJECTPOINT + 224;
pub const CURLOPT_UNIX_SOCKET_PATH: CURLoption = CURLOPTTYPE_OBJECTPOINT + 231;

pub const CURL_IPRESOLVE_WHATEVER: c_int = 0;
pub const CURL_IPRESOLVE_V4: c_int = 1;
pub const CURL_IPRESOLVE_V6: c_int = 2;

pub const CURLSSLOPT_ALLOW_BEAST: c_long = 1 << 0;
pub const CURLSSLOPT_NO_REVOKE: c_long = 1 << 1;

/// These enums are for use with the CURLOPT_HTTP_VERSION option.
///
/// Setting this means we don't care, and that we'd like the library to choose
/// the best possible for us!
pub const CURL_HTTP_VERSION_NONE: c_int = 0;
/// Please use HTTP 1.0 in the request
pub const CURL_HTTP_VERSION_1_0: c_int = 1;
/// Please use HTTP 1.1 in the request
pub const CURL_HTTP_VERSION_1_1: c_int = 2;
/// Please use HTTP 2 in the request
/// (Added in CURL 7.33.0)
pub const CURL_HTTP_VERSION_2_0: c_int = 3;
/// Use version 2 for HTTPS, version 1.1 for HTTP
/// (Added in CURL 7.47.0)
pub const CURL_HTTP_VERSION_2TLS: c_int = 4;
/// Please use HTTP 2 without HTTP/1.1 Upgrade
/// (Added in CURL 7.49.0)
pub const CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE: c_int = 5;

// Note that the type here is wrong, it's just intended to just be an enum.
pub const CURL_SSLVERSION_DEFAULT: CURLoption = 0;
pub const CURL_SSLVERSION_TLSv1: CURLoption = 1;
pub const CURL_SSLVERSION_SSLv2: CURLoption = 2;
pub const CURL_SSLVERSION_SSLv3: CURLoption = 3;
// pub const CURL_SSLVERSION_TLSv1_0: CURLoption = 4;
// pub const CURL_SSLVERSION_TLSv1_1: CURLoption = 5;
// pub const CURL_SSLVERSION_TLSv1_2: CURLoption = 6;

pub const CURLOPT_READDATA: CURLoption = CURLOPT_INFILE;
pub const CURLOPT_WRITEDATA: CURLoption = CURLOPT_FILE;
pub const CURLOPT_HEADERDATA: CURLoption = CURLOPT_WRITEHEADER;

pub type curl_TimeCond = __enum_ty;
pub const CURL_TIMECOND_NONE: curl_TimeCond = 0;
pub const CURL_TIMECOND_IFMODSINCE: curl_TimeCond = 1;
pub const CURL_TIMECOND_IFUNMODSINCE: curl_TimeCond = 2;
pub const CURL_TIMECOND_LASTMOD: curl_TimeCond = 3;

pub type CURLformoption = __enum_ty;
pub const CURLFORM_NOTHING: CURLformoption = 0;
pub const CURLFORM_COPYNAME: CURLformoption = 1;
pub const CURLFORM_PTRNAME: CURLformoption = 2;
pub const CURLFORM_NAMELENGTH: CURLformoption = 3;
pub const CURLFORM_COPYCONTENTS: CURLformoption = 4;
pub const CURLFORM_PTRCONTENTS: CURLformoption = 5;
pub const CURLFORM_CONTENTSLENGTH: CURLformoption = 6;
pub const CURLFORM_FILECONTENT: CURLformoption = 7;
pub const CURLFORM_ARRAY: CURLformoption = 8;
pub const CURLFORM_OBSOLETE: CURLformoption = 9;
pub const CURLFORM_FILE: CURLformoption = 10;
pub const CURLFORM_BUFFER: CURLformoption = 11;
pub const CURLFORM_BUFFERPTR: CURLformoption = 12;
pub const CURLFORM_BUFFERLENGTH: CURLformoption = 13;
pub const CURLFORM_CONTENTTYPE: CURLformoption = 14;
pub const CURLFORM_CONTENTHEADER: CURLformoption = 15;
pub const CURLFORM_FILENAME: CURLformoption = 16;
pub const CURLFORM_END: CURLformoption = 17;
pub const CURLFORM_STREAM: CURLformoption = 19;

pub type CURLFORMcode = __enum_ty;
pub const CURL_FORMADD_OK: CURLFORMcode = 0;
pub const CURL_FORMADD_MEMORY: CURLFORMcode = 1;
pub const CURL_FORMADD_OPTION_TWICE: CURLFORMcode = 2;
pub const CURL_FORMADD_NULL: CURLFORMcode = 3;
pub const CURL_FORMADD_UNKNOWN_OPTION: CURLFORMcode = 4;
pub const CURL_FORMADD_INCOMPLETE: CURLFORMcode = 5;
pub const CURL_FORMADD_ILLEGAL_ARRAY: CURLFORMcode = 6;
pub const CURL_FORMADD_DISABLED: CURLFORMcode = 7;

#[repr(C)]
pub struct curl_forms {
    pub option: CURLformoption,
    pub value: *const c_char,
}

pub type curl_formget_callback = extern fn(*mut c_void,
                                           *const c_char,
                                           size_t) -> size_t;

#[repr(C)]
pub struct curl_slist {
    pub data: *mut c_char,
    pub next: *mut curl_slist,
}

#[repr(C)]
pub struct curl_certinfo {
    pub num_of_certs: c_int,
    pub certinfo: *mut *mut curl_slist,
}

// pub type curl_sslbackend = __enum_ty;
// pub const CURLSSLBACKEND_NONE: curl_sslbackend = 0;
// pub const CURLSSLBACKEND_OPENSSL: curl_sslbackend = 1;
// pub const CURLSSLBACKEND_GNUTLS: curl_sslbackend = 2;
// pub const CURLSSLBACKEND_NSS: curl_sslbackend = 3;
// pub const CURLSSLBACKEND_QSOSSL: curl_sslbackend = 4;
// pub const CURLSSLBACKEND_GSKIT: curl_sslbackend = 5;
// pub const CURLSSLBACKEND_POLARSSL: curl_sslbackend = 6;
// pub const CURLSSLBACKEND_CYASSL: curl_sslbackend = 7;
// pub const CURLSSLBACKEND_SCHANNEL: curl_sslbackend = 8;
// pub const CURLSSLBACKEND_DARWINSSL: curl_sslbackend = 9;

// #[repr(C)]
// pub struct curl_tlssessioninfo {
//     pub backend: curl_sslbackend,
//     pub internals: *mut c_void,
// }

pub const CURLINFO_STRING: CURLINFO = 0x100000;
pub const CURLINFO_LONG: CURLINFO = 0x200000;
pub const CURLINFO_DOUBLE: CURLINFO = 0x300000;
pub const CURLINFO_SLIST: CURLINFO = 0x400000;
pub const CURLINFO_MASK: CURLINFO = 0x0fffff;
pub const CURLINFO_TYPEMASK: CURLINFO = 0xf00000;

pub const CURLINFO_EFFECTIVE_URL: CURLINFO = CURLINFO_STRING + 1;
pub const CURLINFO_RESPONSE_CODE: CURLINFO = CURLINFO_LONG + 2;
pub const CURLINFO_TOTAL_TIME: CURLINFO = CURLINFO_DOUBLE + 3;
pub const CURLINFO_NAMELOOKUP_TIME: CURLINFO = CURLINFO_DOUBLE + 4;
pub const CURLINFO_CONNECT_TIME: CURLINFO = CURLINFO_DOUBLE + 5;
pub const CURLINFO_PRETRANSFER_TIME: CURLINFO = CURLINFO_DOUBLE + 6;
pub const CURLINFO_SIZE_UPLOAD: CURLINFO = CURLINFO_DOUBLE + 7;
pub const CURLINFO_SIZE_DOWNLOAD: CURLINFO = CURLINFO_DOUBLE + 8;
pub const CURLINFO_SPEED_DOWNLOAD: CURLINFO = CURLINFO_DOUBLE + 9;
pub const CURLINFO_SPEED_UPLOAD: CURLINFO = CURLINFO_DOUBLE + 10;
pub const CURLINFO_HEADER_SIZE: CURLINFO = CURLINFO_LONG + 11;
pub const CURLINFO_REQUEST_SIZE: CURLINFO = CURLINFO_LONG + 12;
pub const CURLINFO_SSL_VERIFYRESULT: CURLINFO = CURLINFO_LONG + 13;
pub const CURLINFO_FILETIME: CURLINFO = CURLINFO_LONG + 14;
pub const CURLINFO_CONTENT_LENGTH_DOWNLOAD: CURLINFO = CURLINFO_DOUBLE + 15;
pub const CURLINFO_CONTENT_LENGTH_UPLOAD: CURLINFO = CURLINFO_DOUBLE + 16;
pub const CURLINFO_STARTTRANSFER_TIME: CURLINFO = CURLINFO_DOUBLE + 17;
pub const CURLINFO_CONTENT_TYPE: CURLINFO = CURLINFO_STRING + 18;
pub const CURLINFO_REDIRECT_TIME: CURLINFO = CURLINFO_DOUBLE + 19;
pub const CURLINFO_REDIRECT_COUNT: CURLINFO = CURLINFO_LONG + 20;
pub const CURLINFO_PRIVATE: CURLINFO = CURLINFO_STRING + 21;
pub const CURLINFO_HTTP_CONNECTCODE: CURLINFO = CURLINFO_LONG + 22;
pub const CURLINFO_HTTPAUTH_AVAIL: CURLINFO = CURLINFO_LONG + 23;
pub const CURLINFO_PROXYAUTH_AVAIL: CURLINFO = CURLINFO_LONG + 24;
pub const CURLINFO_OS_ERRNO: CURLINFO = CURLINFO_LONG + 25;
pub const CURLINFO_NUM_CONNECTS: CURLINFO = CURLINFO_LONG + 26;
pub const CURLINFO_SSL_ENGINES: CURLINFO = CURLINFO_SLIST + 27;
pub const CURLINFO_COOKIELIST: CURLINFO = CURLINFO_SLIST + 28;
pub const CURLINFO_LASTSOCKET: CURLINFO = CURLINFO_LONG + 29;
pub const CURLINFO_FTP_ENTRY_PATH: CURLINFO = CURLINFO_STRING + 30;
pub const CURLINFO_REDIRECT_URL: CURLINFO = CURLINFO_STRING + 31;
pub const CURLINFO_PRIMARY_IP: CURLINFO = CURLINFO_STRING + 32;
pub const CURLINFO_APPCONNECT_TIME: CURLINFO = CURLINFO_DOUBLE + 33;
pub const CURLINFO_CERTINFO: CURLINFO = CURLINFO_SLIST + 34;
pub const CURLINFO_CONDITION_UNMET: CURLINFO = CURLINFO_LONG + 35;
pub const CURLINFO_RTSP_SESSION_ID: CURLINFO = CURLINFO_STRING + 36;
pub const CURLINFO_RTSP_CLIENT_CSEQ: CURLINFO = CURLINFO_LONG + 37;
pub const CURLINFO_RTSP_SERVER_CSEQ: CURLINFO = CURLINFO_LONG + 38;
pub const CURLINFO_RTSP_CSEQ_RECV: CURLINFO = CURLINFO_LONG + 39;
pub const CURLINFO_PRIMARY_PORT: CURLINFO = CURLINFO_LONG + 40;
pub const CURLINFO_LOCAL_IP: CURLINFO = CURLINFO_STRING + 41;
pub const CURLINFO_LOCAL_PORT: CURLINFO = CURLINFO_LONG + 42;
// pub const CURLINFO_TLS_SESSION: CURLINFO = CURLINFO_SLIST + 43;

pub type curl_closepolicy = __enum_ty;
pub const CURLCLOSEPOLICY_NONE: curl_closepolicy = 0;
pub const CURLCLOSEPOLICY_OLDEST: curl_closepolicy = 1;
pub const CURLCLOSEPOLICY_LEAST_RECENTLY_USED: curl_closepolicy = 2;
pub const CURLCLOSEPOLICY_LEAST_TRAFFIC: curl_closepolicy = 3;
pub const CURLCLOSEPOLICY_SLOWEST: curl_closepolicy = 4;
pub const CURLCLOSEPOLICY_CALLBACK: curl_closepolicy = 5;

pub const CURL_GLOBAL_SSL: c_long = 1 << 0;
pub const CURL_GLOBAL_WIN32: c_long = 1 << 1;
pub const CURL_GLOBAL_ALL: c_long = CURL_GLOBAL_SSL | CURL_GLOBAL_WIN32;
pub const CURL_GLOBAL_NOTHING: c_long = 0;
pub const CURL_GLOBAL_DEFAULT: c_long = CURL_GLOBAL_ALL;
// pub const CURL_GLOBAL_ACK_EINTR: c_long = 1 << 2;

pub type curl_lock_data = __enum_ty;
pub const CURL_LOCK_DATA_NONE: curl_lock_data = 0;
pub const CURL_LOCK_DATA_SHARE: curl_lock_data = 1;
pub const CURL_LOCK_DATA_COOKIE: curl_lock_data = 2;
pub const CURL_LOCK_DATA_DNS: curl_lock_data = 3;
pub const CURL_LOCK_DATA_SSL_SESSION: curl_lock_data = 4;
pub const CURL_LOCK_DATA_CONNECT: curl_lock_data = 5;

pub type curl_lock_access = __enum_ty;
pub const CURL_LOCK_ACCESS_NONE: curl_lock_access = 0;
pub const CURL_LOCK_ACCESS_SHARED: curl_lock_access = 1;
pub const CURL_LOCK_ACCESS_SINGLE: curl_lock_access = 2;

pub type curl_lock_function = extern fn(*mut CURL,
                                        curl_lock_data,
                                        curl_lock_access,
                                        *mut c_void);
pub type curl_unlock_function = extern fn(*mut CURL,
                                          curl_lock_data,
                                          *mut c_void);

pub enum CURLSH {}

pub type CURLSHcode = __enum_ty;
pub const CURLSHE_OK: CURLSHcode = 0;
pub const CURLSHE_BAD_OPTION: CURLSHcode = 1;
pub const CURLSHE_IN_USE: CURLSHcode = 2;
pub const CURLSHE_INVALID: CURLSHcode = 3;
pub const CURLSHE_NOMEM: CURLSHcode = 4;
// pub const CURLSHE_NOT_BUILT_IN: CURLSHcode = 5;

pub type CURLSHoption = __enum_ty;
pub const CURLSHOPT_NONE: CURLSHoption = 0;
pub const CURLSHOPT_SHARE: CURLSHoption = 1;
pub const CURLSHOPT_UNSHARE: CURLSHoption = 2;
pub const CURLSHOPT_LOCKFUNC: CURLSHoption = 3;
pub const CURLSHOPT_UNLOCKFUNC: CURLSHoption = 4;
pub const CURLSHOPT_USERDATA: CURLSHoption = 5;

pub const CURLVERSION_FIRST: CURLversion = 0;
pub const CURLVERSION_SECOND: CURLversion = 1;
pub const CURLVERSION_THIRD: CURLversion = 2;
pub const CURLVERSION_FOURTH: CURLversion = 3;
pub const CURLVERSION_NOW: CURLversion = CURLVERSION_FOURTH;

#[repr(C)]
pub struct curl_version_info_data {
    pub age: CURLversion,
    pub version: *const c_char,
    pub version_num: c_uint,
    pub host: *const c_char,
    pub features: c_int,
    pub ssl_version: *const c_char,
    pub ssl_version_num: c_long,
    pub libz_version: *const c_char,
    pub protocols: *const *const c_char,
    pub ares: *const c_char,
    pub ares_num: c_int,
    pub libidn: *const c_char,
    pub iconv_ver_num: c_int,
    pub libssh_version: *const c_char,
}

pub const CURL_VERSION_IPV6: c_int = 1 << 0;
pub const CURL_VERSION_KERBEROS4: c_int = 1 << 1;
pub const CURL_VERSION_SSL: c_int = 1 << 2;
pub const CURL_VERSION_LIBZ: c_int = 1 << 3;
pub const CURL_VERSION_NTLM: c_int = 1 << 4;
pub const CURL_VERSION_GSSNEGOTIATE: c_int = 1 << 5;
pub const CURL_VERSION_DEBUG: c_int = 1 << 6;
pub const CURL_VERSION_ASYNCHDNS: c_int = 1 << 7;
pub const CURL_VERSION_SPNEGO: c_int = 1 << 8;
pub const CURL_VERSION_LARGEFILE: c_int = 1 << 9;
pub const CURL_VERSION_IDN: c_int = 1 << 10;
pub const CURL_VERSION_SSPI: c_int = 1 << 11;
pub const CURL_VERSION_CONV: c_int = 1 << 12;
pub const CURL_VERSION_CURLDEBUG: c_int = 1 << 13;
pub const CURL_VERSION_TLSAUTH_SRP: c_int = 1 << 14;
pub const CURL_VERSION_NTLM_WB: c_int = 1 << 15;
// pub const CURL_VERSION_HTTP2: c_int = 1 << 16;
pub const CURL_VERSION_UNIX_SOCKETS: c_int = 1 << 19;

pub const CURLPAUSE_RECV: c_int = 1 << 0;
pub const CURLPAUSE_RECV_CONT: c_int = 0;
pub const CURLPAUSE_SEND: c_int = 1 << 2;
pub const CURLPAUSE_SEND_CONT: c_int = 0;

pub enum CURLM {}

pub type CURLMcode = c_int;
pub const CURLM_CALL_MULTI_PERFORM: CURLMcode = -1;
pub const CURLM_OK: CURLMcode = 0;
pub const CURLM_BAD_HANDLE: CURLMcode = 1;
pub const CURLM_BAD_EASY_HANDLE: CURLMcode = 2;
pub const CURLM_OUT_OF_MEMORY: CURLMcode = 3;
pub const CURLM_INTERNAL_ERROR: CURLMcode = 4;
pub const CURLM_BAD_SOCKET: CURLMcode = 5;
pub const CURLM_UNKNOWN_OPTION: CURLMcode = 6;
// pub const CURLM_ADDED_ALREADY: CURLMcode = 7;

pub type CURLMSG = __enum_ty;
pub const CURLMSG_NONE: CURLMSG = 0;
pub const CURLMSG_DONE: CURLMSG = 1;

#[repr(C)]
pub struct CURLMsg {
    pub msg: CURLMSG,
    pub easy_handle: *mut CURL,
    pub data: *mut c_void,
}

pub const CURL_WAIT_POLLIN: c_short = 0x1;
pub const CURL_WAIT_POLLPRI: c_short = 0x2;
pub const CURL_WAIT_POLLOUT: c_short = 0x4;

#[repr(C)]
pub struct curl_waitfd {
    pub fd: curl_socket_t,
    pub events: c_short,
    pub revents: c_short,
}

pub const CURL_POLL_NONE: c_int = 0;
pub const CURL_POLL_IN: c_int = 1;
pub const CURL_POLL_OUT: c_int = 2;
pub const CURL_POLL_INOUT: c_int = 3;
pub const CURL_POLL_REMOVE: c_int = 4;
pub const CURL_CSELECT_IN: c_int = 1;
pub const CURL_CSELECT_OUT: c_int = 2;
pub const CURL_CSELECT_ERR: c_int = 4;
pub const CURL_SOCKET_TIMEOUT: curl_socket_t = CURL_SOCKET_BAD;

pub type curl_socket_callback = extern fn(*mut CURL,
                                          curl_socket_t,
                                          c_int,
                                          *mut c_void,
                                          *mut c_void) -> c_int;
pub type curl_multi_timer_callback = extern fn(*mut CURLM,
                                               c_long,
                                               *mut c_void) -> c_int;

pub type CURLMoption = __enum_ty;
pub const CURLMOPT_SOCKETFUNCTION: CURLMoption = CURLOPTTYPE_FUNCTIONPOINT + 1;
pub const CURLMOPT_SOCKETDATA: CURLMoption = CURLOPTTYPE_OBJECTPOINT + 2;
pub const CURLMOPT_PIPELINING: CURLMoption = CURLOPTTYPE_LONG + 3;
pub const CURLMOPT_TIMERFUNCTION: CURLMoption = CURLOPTTYPE_FUNCTIONPOINT + 4;
pub const CURLMOPT_TIMERDATA: CURLMoption = CURLOPTTYPE_OBJECTPOINT + 5;
// pub const CURLMOPT_MAXCONNECTS: CURLMoption = CURLOPTTYPE_LONG + 6;
// pub const CURLMOPT_MAX_HOST_CONNECTIONS: CURLMoption = CURLOPTTYPE_LONG + 7;
// pub const CURLMOPT_MAX_PIPELINE_LENGTH: CURLMoption = CURLOPTTYPE_LONG + 8;
// pub const CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE: CURLMoption = CURLOPTTYPE_OFF_T + 9;
// pub const CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE: CURLMoption = CURLOPTTYPE_OFF_T + 10;
// pub const CURLMOPT_PIPELINING_SITE_BL: CURLMoption = CURLOPTTYPE_OBJECTPOINT + 11;
// pub const CURLMOPT_PIPELINING_SERVER_BL: CURLMoption = CURLOPTTYPE_OBJECTPOINT + 12;
// pub const CURLMOPT_MAX_TOTAL_CONNECTIONS: CURLMoption = CURLOPTTYPE_LONG + 13;

// These enums are for use with the CURLMOPT_PIPELINING option.
pub const CURLPIPE_NOTHING: c_long = 0;
pub const CURLPIPE_HTTP1: c_long = 1;
pub const CURLPIPE_MULTIPLEX: c_long = 2;

pub const CURL_ERROR_SIZE: usize = 256;

pub type curl_opensocket_callback = extern fn(*mut c_void,
                                              curlsocktype,
                                              *mut curl_sockaddr) -> curl_socket_t;
pub type curlsocktype = __enum_ty;
pub const CURLSOCKTYPE_IPCXN: curlsocktype = 0;
pub const CURLSOCKTYPE_ACCEPT: curlsocktype = 1;
pub const CURLSOCKTYPE_LAST: curlsocktype = 2;

#[repr(C)]
pub struct curl_sockaddr {
    pub family: c_int,
    pub socktype: c_int,
    pub protocol: c_int,
    pub addrlen: c_uint,
    #[cfg(unix)]
    pub addr: libc::sockaddr,
    #[cfg(windows)]
    pub addr: SOCKADDR,
}

extern {
    pub fn curl_formadd(httppost: *mut *mut curl_httppost,
                        last_post: *mut *mut curl_httppost,
                        ...) -> CURLFORMcode;
    pub fn curl_formget(form: *mut curl_httppost,
                        arg: *mut c_void,
                        append: curl_formget_callback) -> c_int;
    pub fn curl_formfree(form: *mut curl_httppost);

    pub fn curl_version() -> *mut c_char;

    pub fn curl_easy_escape(handle: *mut CURL,
                            string: *const c_char,
                            length: c_int) -> *mut c_char;
    pub fn curl_easy_unescape(handle: *mut CURL,
                              string: *const c_char,
                              length: c_int,
                              outlength: *mut c_int) -> *mut c_char;
    pub fn curl_free(p: *mut c_void);

    pub fn curl_global_init(flags: c_long) -> CURLcode;
    pub fn curl_global_init_mem(flags: c_long,
                                m: curl_malloc_callback,
                                f: curl_free_callback,
                                r: curl_realloc_callback,
                                s: curl_strdup_callback,
                                c: curl_calloc_callback) -> CURLcode;
    pub fn curl_global_cleanup();

    pub fn curl_slist_append(list: *mut curl_slist,
                             val: *const c_char) -> *mut curl_slist;
    pub fn curl_slist_free_all(list: *mut curl_slist);

    pub fn curl_getdate(p: *const c_char, _: *const time_t) -> time_t;

    pub fn curl_share_init() -> *mut CURLSH;
    pub fn curl_share_setopt(sh: *mut CURLSH,
                             opt: CURLSHoption,
                             ...) -> CURLSHcode;
    pub fn curl_share_cleanup(sh: *mut CURLSH) -> CURLSHcode;

    pub fn curl_version_info(t: CURLversion) -> *mut curl_version_info_data;

    pub fn curl_easy_strerror(code: CURLcode) -> *const c_char;
    pub fn curl_share_strerror(code: CURLSHcode) -> *const c_char;
    pub fn curl_easy_pause(handle: *mut CURL, bitmask: c_int) -> CURLcode;

    pub fn curl_easy_init() -> *mut CURL;
    pub fn curl_easy_setopt(curl: *mut CURL, option: CURLoption, ...) -> CURLcode;
    pub fn curl_easy_perform(curl: *mut CURL) -> CURLcode;
    pub fn curl_easy_cleanup(curl: *mut CURL);
    pub fn curl_easy_getinfo(curl: *mut CURL, info: CURLINFO, ...) -> CURLcode;
    pub fn curl_easy_duphandle(curl: *mut CURL) -> *mut CURL;
    pub fn curl_easy_reset(curl: *mut CURL);
    pub fn curl_easy_recv(curl: *mut CURL,
                          buffer: *mut c_void,
                          buflen: size_t,
                          n: *mut size_t) -> CURLcode;
    pub fn curl_easy_send(curl: *mut CURL,
                          buffer: *const c_void,
                          buflen: size_t,
                          n: *mut size_t) -> CURLcode;

    pub fn curl_multi_init() -> *mut CURLM;
    pub fn curl_multi_add_handle(multi_handle: *mut CURLM,
                                 curl_handle: *mut CURL) -> CURLMcode;
    pub fn curl_multi_remove_handle(multi_handle: *mut CURLM,
                                    curl_handle: *mut CURL) -> CURLMcode;
    pub fn curl_multi_fdset(multi_handle: *mut CURLM,
                            read_fd_set: *mut fd_set,
                            write_fd_set: *mut fd_set,
                            exc_fd_set: *mut fd_set,
                            max_fd: *mut c_int) -> CURLMcode;
    pub fn curl_multi_wait(multi_handle: *mut CURLM,
                           extra_fds: *mut curl_waitfd,
                           extra_nfds: c_uint,
                           timeout_ms: c_int,
                           ret: *mut c_int) -> CURLMcode;
    pub fn curl_multi_perform(multi_handle: *mut CURLM,
                              running_handles: *mut c_int) -> CURLMcode;
    pub fn curl_multi_cleanup(multi_handle: *mut CURLM) -> CURLMcode;
    pub fn curl_multi_info_read(multi_handle: *mut CURLM,
                                msgs_in_queue: *mut c_int) -> *mut CURLMsg;
    pub fn curl_multi_strerror(code: CURLMcode) -> *const c_char;
    pub fn curl_multi_socket(multi_handle: *mut CURLM,
                             s: curl_socket_t,
                             running_handles: *mut c_int) -> CURLMcode;
    pub fn curl_multi_socket_action(multi_handle: *mut CURLM,
                                    s: curl_socket_t,
                                    ev_bitmask: c_int,
                                    running_handles: *mut c_int) -> CURLMcode;
    pub fn curl_multi_socket_all(multi_handle: *mut CURLM,
                                 running_handles: *mut c_int) -> CURLMcode;
    pub fn curl_multi_timeout(multi_handle: *mut CURLM,
                              milliseconds: *mut c_long) -> CURLMcode;
    pub fn curl_multi_setopt(multi_handle: *mut CURLM,
                             option: CURLMoption,
                             ...) -> CURLMcode;
    pub fn curl_multi_assign(multi_handle: *mut CURLM,
                             sockfd: curl_socket_t,
                             sockp: *mut c_void) -> CURLMcode;
}