summaryrefslogtreecommitdiff
path: root/CHANGELOG.md
blob: 423ca66538677a968df4b6838b90b4de5788af6f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
# Change Log

All notable changes to this project will be documented in this file.
This project adheres to [Semantic Versioning](https://semver.org/).

## [Unreleased] - ReleaseDate
### Added
- Added `getresuid` and `getresgid`
  (#[1430](https://github.com/nix-rust/nix/pull/1430))
- Added TIMESTAMPNS support for linux
  (#[1402](https://github.com/nix-rust/nix/pull/1402))
- Added `sendfile64` (#[1439](https://github.com/nix-rust/nix/pull/1439))
- Added `MS_LAZYTIME` to `MsFlags`
  (#[1437](https://github.com/nix-rust/nix/pull/1437))

### Changed
- Made `forkpty` unsafe, like `fork`
  (#[1390](https://github.com/nix-rust/nix/pull/1390))
- Made `Uid`, `Gid` and `Pid` methods `from_raw` and `as_raw` a `const fn`
  (#[1429](https://github.com/nix-rust/nix/pull/1429))
- Made `Uid::is_root` a `const fn`
  (#[1429](https://github.com/nix-rust/nix/pull/1429))
- `AioCb` is now always pinned.  Once a `libc::aiocb` gets sent to the kernel,
  its address in memory must not change.  Nix now enforces that by using
  `std::pin`.  Most users won't need to change anything, except when using
  `aio_suspend`.  See that method's documentation for the new usage.
  (#[1440](https://github.com/nix-rust/nix/pull/1440))
- `LioCb` is now constructed using a distinct `LioCbBuilder` struct.  This
  avoids a soundness issue with the old `LioCb`.  Usage is similar but
  construction now uses the builder pattern.  See the documentation for
  details.
  (#[1440](https://github.com/nix-rust/nix/pull/1440))
- Minimum supported Rust version is now 1.41.0.
  ([#1440](https://github.com/nix-rust/nix/pull/1440))

### Fixed
- Allow `sockaddr_ll` size, as reported by the Linux kernel, to be smaller then it's definition
  (#[1395](https://github.com/nix-rust/nix/pull/1395))
- Fix spurious errors using `sendmmsg` with multiple cmsgs
  (#[1414](https://github.com/nix-rust/nix/pull/1414))

### Removed

- Removed `sys::socket::accept4` from Android arm because libc removed it in
  version 0.2.87.
  ([#1399](https://github.com/nix-rust/nix/pull/1399))
- `AioCb::from_boxed_slice` and `AioCb::from_boxed_mut_slice` have been
  removed.  They were useful with earlier versions of Rust, but should no
  longer be needed now that async/await are available.  `AioCb`s now work
  exclusively with borrowed buffers, not owned ones.
  (#[1440](https://github.com/nix-rust/nix/pull/1440))

## [0.20.0] - 20 February 2021
### Added

- Added a `passwd` field to `Group` (#[1338](https://github.com/nix-rust/nix/pull/1338))
- Added `mremap` (#[1306](https://github.com/nix-rust/nix/pull/1306))
- Added `personality` (#[1331](https://github.com/nix-rust/nix/pull/1331))
- Added limited Fuchsia support (#[1285](https://github.com/nix-rust/nix/pull/1285))
- Added `getpeereid` (#[1342](https://github.com/nix-rust/nix/pull/1342))
- Implemented `IntoIterator` for `Dir`
  (#[1333](https://github.com/nix-rust/nix/pull/1333)).

### Changed

- Minimum supported Rust version is now 1.40.0.
  ([#1356](https://github.com/nix-rust/nix/pull/1356))
- i686-apple-darwin has been demoted to Tier 2 support, because it's deprecated
  by Xcode.
  (#[1350](https://github.com/nix-rust/nix/pull/1350))
- Fixed calling `recvfrom` on an `AddrFamily::Packet` socket
  (#[1344](https://github.com/nix-rust/nix/pull/1344))

### Fixed
- `TimerFd` now closes the underlying fd on drop.
  ([#1381](https://github.com/nix-rust/nix/pull/1381))
- Define `*_MAGIC` filesystem constants on Linux s390x
  (#[1372](https://github.com/nix-rust/nix/pull/1372))
- mqueue, sysinfo, timespec, statfs, test_ptrace_syscall() on x32
  (#[1366](https://github.com/nix-rust/nix/pull/1366))

### Removed

- `Dir`, `SignalFd`, and `PtyMaster` are no longer `Clone`.
  (#[1382](https://github.com/nix-rust/nix/pull/1382))
- Removed `SockLevel`, which hasn't been used for a few years
  (#[1362](https://github.com/nix-rust/nix/pull/1362))
- Removed both `Copy` and `Clone` from `TimerFd`.
  ([#1381](https://github.com/nix-rust/nix/pull/1381))

## [0.19.1] - 28 November 2020
### Fixed
- Fixed bugs in `recvmmsg`.
  (#[1341](https://github.com/nix-rust/nix/pull/1341))

## [0.19.0] - 6 October 2020
### Added
- Added Netlink protocol families to the `SockProtocol` enum
  (#[1289](https://github.com/nix-rust/nix/pull/1289))
- Added `clock_gettime`, `clock_settime`, `clock_getres`,
  `clock_getcpuclockid` functions and `ClockId` struct.
  (#[1281](https://github.com/nix-rust/nix/pull/1281))
- Added wrapper functions for `PTRACE_SYSEMU` and `PTRACE_SYSEMU_SINGLESTEP`.
  (#[1300](https://github.com/nix-rust/nix/pull/1300))
- Add support for Vsock on Android rather than just Linux.
  (#[1301](https://github.com/nix-rust/nix/pull/1301))
- Added `TCP_KEEPCNT` and `TCP_KEEPINTVL` TCP keepalive options.
  (#[1283](https://github.com/nix-rust/nix/pull/1283))
### Changed
- Expose `SeekData` and `SeekHole` on all Linux targets
  (#[1284](https://github.com/nix-rust/nix/pull/1284))
- Changed unistd::{execv,execve,execvp,execvpe,fexecve,execveat} to take both `&[&CStr]` and `&[CString]` as its list argument(s).
  (#[1278](https://github.com/nix-rust/nix/pull/1278))
- Made `unistd::fork` an unsafe funtion, bringing it in line with [libstd's decision](https://github.com/rust-lang/rust/pull/58059).
  (#[1293](https://github.com/nix-rust/nix/pull/1293))
### Fixed
### Removed

## [0.18.0] - 26 July 2020
### Added
- Added `fchown(2)` wrapper.
  (#[1257](https://github.com/nix-rust/nix/pull/1257))
- Added support on linux systems for `MAP_HUGE_`_`SIZE`_ family of flags.
  (#[1211](https://github.com/nix-rust/nix/pull/1211))
- Added support for `F_OFD_*` `fcntl` commands on Linux and Android.
  (#[1195](https://github.com/nix-rust/nix/pull/1195))
- Added `env::clearenv()`: calls `libc::clearenv` on platforms
  where it's available, and clears the environment of all variables
  via `std::env::vars` and `std::env::remove_var` on others.
  (#[1185](https://github.com/nix-rust/nix/pull/1185))
- `FsType` inner value made public.
  (#[1187](https://github.com/nix-rust/nix/pull/1187))
- Added `unistd::setfsuid` and `unistd::setfsgid` to set the user or group
  identity for filesystem checks per-thread.
  (#[1163](https://github.com/nix-rust/nix/pull/1163))
- Derived `Ord`, `PartialOrd` for `unistd::Pid` (#[1189](https://github.com/nix-rust/nix/pull/1189))
- Added `select::FdSet::fds` method to iterate over file descriptors in a set.
  ([#1207](https://github.com/nix-rust/nix/pull/1207))
- Added support for UDP generic segmentation offload (GSO) and generic
  receive offload (GRO) ([#1209](https://github.com/nix-rust/nix/pull/1209))
- Added support for `sendmmsg` and `recvmmsg` calls
  (#[1208](https://github.com/nix-rust/nix/pull/1208))
- Added support for `SCM_CREDS` messages (`UnixCredentials`) on FreeBSD/DragonFly
  (#[1216](https://github.com/nix-rust/nix/pull/1216))
- Added `BindToDevice` socket option (sockopt) on Linux
  (#[1233](https://github.com/nix-rust/nix/pull/1233))
- Added `EventFilter` bitflags for `EV_DISPATCH` and `EV_RECEIPT` on OpenBSD.
  (#[1252](https://github.com/nix-rust/nix/pull/1252))
- Added support for `Ipv4PacketInfo` and `Ipv6PacketInfo` to `ControlMessage`.
  (#[1222](https://github.com/nix-rust/nix/pull/1222))
- `CpuSet` and `UnixCredentials` now implement `Default`.
  (#[1244](https://github.com/nix-rust/nix/pull/1244))
- Added `unistd::ttyname`
  (#[1259](https://github.com/nix-rust/nix/pull/1259))
- Added support for `Ipv4PacketInfo` and `Ipv6PacketInfo` to `ControlMessage` for iOS and Android.
  (#[1265](https://github.com/nix-rust/nix/pull/1265))
- Added support for `TimerFd`.
  (#[1261](https://github.com/nix-rust/nix/pull/1261))

### Changed
- Changed `fallocate` return type from `c_int` to `()` (#[1201](https://github.com/nix-rust/nix/pull/1201))
- Enabled `sys::ptrace::setregs` and `sys::ptrace::getregs` on x86_64-unknown-linux-musl target
  (#[1198](https://github.com/nix-rust/nix/pull/1198))
- On Linux, `ptrace::write` is now an `unsafe` function. Caveat programmer.
  (#[1245](https://github.com/nix-rust/nix/pull/1245))
- `execv`, `execve`, `execvp` and `execveat` in `::nix::unistd` and `reboot` in
  `::nix::sys::reboot` now return `Result<Infallible>` instead of `Result<Void>` (#[1239](https://github.com/nix-rust/nix/pull/1239))
- `sys::socket::sockaddr_storage_to_addr` is no longer `unsafe`.  So is
  `offset_of!`.
- `sys::socket::sockaddr_storage_to_addr`, `offset_of!`, and `Errno::clear` are
  no longer `unsafe`.
- `SockAddr::as_ffi_pair`,`sys::socket::sockaddr_storage_to_addr`, `offset_of!`,
  and `Errno::clear` are no longer `unsafe`.
  (#[1244](https://github.com/nix-rust/nix/pull/1244))
- Several `Inotify` methods now take `self` by value instead of by reference
  (#[1244](https://github.com/nix-rust/nix/pull/1244))
- `nix::poll::ppoll`: `timeout` parameter is now optional, None is equivalent for infinite timeout.

### Fixed

- Fixed `getsockopt`.  The old code produced UB which triggers a panic with
  Rust 1.44.0.
  (#[1214](https://github.com/nix-rust/nix/pull/1214))

- Fixed a bug in nix::unistd that would result in an infinite loop
  when a group or user lookup required a buffer larger than
  16KB. (#[1198](https://github.com/nix-rust/nix/pull/1198))
- Fixed unaligned casting of `cmsg_data` to `af_alg_iv` (#[1206](https://github.com/nix-rust/nix/pull/1206))
- Fixed `readlink`/`readlinkat` when reading symlinks longer than `PATH_MAX` (#[1231](https://github.com/nix-rust/nix/pull/1231))
- `PollFd`, `EpollEvent`, `IpMembershipRequest`, `Ipv6MembershipRequest`,
  `TimeVal`, and `IoVec` are now `repr(transparent)`.  This is required for
  correctness's sake across all architectures and compilers, though now bugs
  have been reported so far.
  (#[1243](https://github.com/nix-rust/nix/pull/1243))
- Fixed unaligned pointer read in `Inotify::read_events`.
  (#[1244](https://github.com/nix-rust/nix/pull/1244))

### Removed

- Removed `sys::socket::addr::from_libc_sockaddr` from the public API.
  (#[1215](https://github.com/nix-rust/nix/pull/1215))
- Removed `sys::termios::{get_libc_termios, get_libc_termios_mut, update_wrapper`
  from the public API. These were previously hidden in the docs but still usable
  by downstream.
  (#[1235](https://github.com/nix-rust/nix/pull/1235))

- Nix no longer implements `NixPath` for `Option<P> where P: NixPath`.  Most
  Nix functions that accept `NixPath` arguments can't do anything useful with
  `None`.  The exceptions (`mount` and `quotactl_sync`) already take explicitly
  optional arguments.
  (#[1242](https://github.com/nix-rust/nix/pull/1242))

- Removed `unistd::daemon` and `unistd::pipe2` on OSX and ios
  (#[1255](https://github.com/nix-rust/nix/pull/1255))

- Removed `sys::event::FilterFlag::NOTE_EXIT_REPARENTED` and
  `sys::event::FilterFlag::NOTE_REAP` on OSX and ios.
  (#[1255](https://github.com/nix-rust/nix/pull/1255))

- Removed `sys::ptrace::ptrace` on Android and Linux.
  (#[1255](https://github.com/nix-rust/nix/pull/1255))

- Dropped support for powerpc64-unknown-linux-gnu
  (#[1266](https://github.com/nix-rust/nix/pull/1268))

## [0.17.0] - 3 February 2020
### Added
- Add `CLK_TCK` to `SysconfVar`
  (#[1177](https://github.com/nix-rust/nix/pull/1177))
### Changed
### Fixed
### Removed
- Removed deprecated Error::description from error types
  (#[1175](https://github.com/nix-rust/nix/pull/1175))

## [0.16.1] - 23 December 2019
### Added
### Changed
### Fixed

- Fixed the build for OpenBSD
  (#[1168](https://github.com/nix-rust/nix/pull/1168))

### Removed

## [0.16.0] - 1 December 2019
### Added
- Added `ptrace::seize()`: similar to `attach()` on Linux
  but with better-defined semantics.
  (#[1154](https://github.com/nix-rust/nix/pull/1154))

- Added `Signal::as_str()`: returns signal name as `&'static str`
  (#[1138](https://github.com/nix-rust/nix/pull/1138))

- Added `posix_fallocate`.
  ([#1105](https://github.com/nix-rust/nix/pull/1105))

- Implemented `Default` for `FdSet`
  ([#1107](https://github.com/nix-rust/nix/pull/1107))

- Added `NixPath::is_empty`.
  ([#1107](https://github.com/nix-rust/nix/pull/1107))

- Added `mkfifoat`
  ([#1133](https://github.com/nix-rust/nix/pull/1133))

- Added `User::from_uid`, `User::from_name`, `User::from_gid` and
  `Group::from_name`,
  ([#1139](https://github.com/nix-rust/nix/pull/1139))

- Added `linkat`
  ([#1101](https://github.com/nix-rust/nix/pull/1101))

- Added `sched_getaffinity`.
  ([#1148](https://github.com/nix-rust/nix/pull/1148))

- Added optional `Signal` argument to `ptrace::{detach, syscall}` for signal
  injection. ([#1083](https://github.com/nix-rust/nix/pull/1083))

### Changed
- `sys::termios::BaudRate` now implements `TryFrom<speed_t>` instead of
  `From<speed_t>`.  The old `From` implementation would panic on failure.
  ([#1159](https://github.com/nix-rust/nix/pull/1159))

- `sys::socket::ControlMessage::ScmCredentials` and
  `sys::socket::ControlMessageOwned::ScmCredentials` now wrap `UnixCredentials`
  rather than `libc::ucred`.
  ([#1160](https://github.com/nix-rust/nix/pull/1160))

- `sys::socket::recvmsg` now takes a plain `Vec` instead of a `CmsgBuffer`
  implementor.  If you were already using `cmsg_space!`, then you needn't worry.
  ([#1156](https://github.com/nix-rust/nix/pull/1156))

- `sys::socket::recvfrom` now returns
  `Result<(usize, Option<SockAddr>)>` instead of `Result<(usize, SockAddr)>`.
  ([#1145](https://github.com/nix-rust/nix/pull/1145))

- `Signal::from_c_int` has been replaced by `Signal::try_from`
  ([#1113](https://github.com/nix-rust/nix/pull/1113))

- Changed `readlink` and `readlinkat` to return `OsString`
  ([#1109](https://github.com/nix-rust/nix/pull/1109))

  ```rust
  # use nix::fcntl::{readlink, readlinkat};
  // the buffer argument of `readlink` and `readlinkat` has been removed,
  // and the return value is now an owned type (`OsString`).
  // Existing code can be updated by removing the buffer argument
  // and removing any clone or similar operation on the output

  // old code `readlink(&path, &mut buf)` can be replaced with the following
  let _: OsString = readlink(&path);

  // old code `readlinkat(dirfd, &path, &mut buf)` can be replaced with the following
  let _: OsString = readlinkat(dirfd, &path);
  ```

- Minimum supported Rust version is now 1.36.0.
  ([#1108](https://github.com/nix-rust/nix/pull/1108))

- `Ipv4Addr::octets`, `Ipv4Addr::to_std`, `Error::as_errno`,
  `ForkResult::is_child`, `ForkResult::is_parent`, `Gid::as_raw`,
  `Uid::is_root`, `Uid::as_raw`, `Pid::as_raw`, and `PollFd::revents` now take
  `self` by value.
  ([#1107](https://github.com/nix-rust/nix/pull/1107))

- Type `&CString` for parameters of `exec(v|ve|vp|vpe|veat)` are changed to `&CStr`.
  ([#1121](https://github.com/nix-rust/nix/pull/1121))

### Fixed
- Fix length of abstract socket addresses
  ([#1120](https://github.com/nix-rust/nix/pull/1120))

- Fix initialization of msghdr in recvmsg/sendmsg when built with musl
  ([#1136](https://github.com/nix-rust/nix/pull/1136))

### Removed
- Remove the deprecated `CmsgSpace`.
  ([#1156](https://github.com/nix-rust/nix/pull/1156))

## [0.15.0] - 10 August 2019
### Added
- Added `MSG_WAITALL` to `MsgFlags` in `sys::socket`.
  ([#1079](https://github.com/nix-rust/nix/pull/1079))
- Implemented `Clone`, `Copy`, `Debug`, `Eq`, `Hash`, and `PartialEq` for most
  types that support them. ([#1035](https://github.com/nix-rust/nix/pull/1035))
- Added `copy_file_range` wrapper
  ([#1069](https://github.com/nix-rust/nix/pull/1069))
- Add `mkdirat`.
  ([#1084](https://github.com/nix-rust/nix/pull/1084))
- Add `posix_fadvise`.
  ([#1089](https://github.com/nix-rust/nix/pull/1089))
- Added `AF_VSOCK` to `AddressFamily`.
  ([#1091](https://github.com/nix-rust/nix/pull/1091))
- Add `unlinkat`
  ([#1058](https://github.com/nix-rust/nix/pull/1058))
- Add `renameat`.
  ([#1097](https://github.com/nix-rust/nix/pull/1097))

### Changed
- Support for `ifaddrs` now present when building for Android.
  ([#1077](https://github.com/nix-rust/nix/pull/1077))
- Minimum supported Rust version is now 1.31.0
  ([#1035](https://github.com/nix-rust/nix/pull/1035))
  ([#1095](https://github.com/nix-rust/nix/pull/1095))
- Now functions `statfs()` and `fstatfs()` return result with `Statfs` wrapper
  ([#928](https://github.com/nix-rust/nix/pull/928))

### Fixed
- Enabled `sched_yield` for all nix hosts.
  ([#1090](https://github.com/nix-rust/nix/pull/1090))

### Removed

## [0.14.1] - 2019-06-06
### Added
- Macros exported by `nix` may now be imported via `use` on the Rust 2018
  edition without importing helper macros on Linux targets.
  ([#1066](https://github.com/nix-rust/nix/pull/1066))

  For example, in Rust 2018, the `ioctl_read_bad!` macro can now be imported
  without importing the `convert_ioctl_res!` macro.

  ```rust
  use nix::ioctl_read_bad;

  ioctl_read_bad!(tcgets, libc::TCGETS, libc::termios);
  ```

### Changed
- Changed some public types from reexports of libc types like `uint32_t` to the
  native equivalents like `u32.`
  ([#1072](https://github.com/nix-rust/nix/pull/1072/commits))

### Fixed
- Fix the build on Android and Linux/mips with recent versions of libc.
  ([#1072](https://github.com/nix-rust/nix/pull/1072/commits))

### Removed

## [0.14.0] - 2019-05-21
### Added
- Add IP_RECVIF & IP_RECVDSTADDR. Enable IP_PKTINFO and IP6_PKTINFO on netbsd/openbsd.
  ([#1002](https://github.com/nix-rust/nix/pull/1002))
- Added `inotify_init1`, `inotify_add_watch` and `inotify_rm_watch` wrappers for
  Android and Linux. ([#1016](https://github.com/nix-rust/nix/pull/1016))
- Add `ALG_SET_IV`, `ALG_SET_OP` and `ALG_SET_AEAD_ASSOCLEN` control messages and `AF_ALG`
  socket types on Linux and Android ([#1031](https://github.com/nix-rust/nix/pull/1031))
- Add killpg
  ([#1034](https://github.com/nix-rust/nix/pull/1034))
- Added ENOTSUP errno support for Linux and Android.
  ([#969](https://github.com/nix-rust/nix/pull/969))
- Add several errno constants from OpenBSD 6.2
  ([#1036](https://github.com/nix-rust/nix/pull/1036))
- Added `from_std` and `to_std` methods for `sys::socket::IpAddr`
  ([#1043](https://github.com/nix-rust/nix/pull/1043))
- Added `nix::unistd:seteuid` and `nix::unistd::setegid` for those platforms that do
  not support `setresuid` nor `setresgid` respectively.
  ([#1044](https://github.com/nix-rust/nix/pull/1044))
- Added a `access` wrapper
  ([#1045](https://github.com/nix-rust/nix/pull/1045))
- Add `forkpty`
  ([#1042](https://github.com/nix-rust/nix/pull/1042))
- Add `sched_yield`
  ([#1050](https://github.com/nix-rust/nix/pull/1050))

### Changed
- `PollFd` event flags renamed to `PollFlags` ([#1024](https://github.com/nix-rust/nix/pull/1024/))
- `recvmsg` now returns an Iterator over `ControlMessageOwned` objects rather
  than `ControlMessage` objects.  This is sadly not backwards-compatible.  Fix
  code like this:
  ```rust
  if let ControlMessage::ScmRights(&fds) = cmsg {
  ```

  By replacing it with code like this:
  ```rust
  if let ControlMessageOwned::ScmRights(fds) = cmsg {
  ```
  ([#1020](https://github.com/nix-rust/nix/pull/1020))
- Replaced `CmsgSpace` with the `cmsg_space` macro.
  ([#1020](https://github.com/nix-rust/nix/pull/1020))

### Fixed
- Fixed multiple bugs when using `sendmsg` and `recvmsg` with ancillary control messages
  ([#1020](https://github.com/nix-rust/nix/pull/1020))
- Macros exported by `nix` may now be imported via `use` on the Rust 2018
  edition without importing helper macros for BSD targets.
  ([#1041](https://github.com/nix-rust/nix/pull/1041))

  For example, in Rust 2018, the `ioctl_read_bad!` macro can now be imported
  without importing the `convert_ioctl_res!` macro.

  ```rust
  use nix::ioctl_read_bad;

  ioctl_read_bad!(tcgets, libc::TCGETS, libc::termios);
  ```

### Removed
- `Daemon`, `NOTE_REAP`, and `NOTE_EXIT_REPARENTED` are now deprecated on OSX
  and iOS.
  ([#1033](https://github.com/nix-rust/nix/pull/1033))
- `PTRACE_GETREGS`, `PTRACE_SETREGS`, `PTRACE_GETFPREGS`, and
  `PTRACE_SETFPREGS` have been removed from some platforms where they never
  should've been defined in the first place.
  ([#1055](https://github.com/nix-rust/nix/pull/1055))

## [0.13.0] - 2019-01-15
### Added
- Added PKTINFO(V4) & V6PKTINFO cmsg support - Android/FreeBSD/iOS/Linux/MacOS.
  ([#990](https://github.com/nix-rust/nix/pull/990))
- Added support of CString type in `setsockopt`.
  ([#972](https://github.com/nix-rust/nix/pull/972))
- Added option `TCP_CONGESTION` in `setsockopt`.
  ([#972](https://github.com/nix-rust/nix/pull/972))
- Added `symlinkat` wrapper.
  ([#997](https://github.com/nix-rust/nix/pull/997))
- Added `ptrace::{getregs, setregs}`.
  ([#1010](https://github.com/nix-rust/nix/pull/1010))
- Added `nix::sys::signal::signal`.
  ([#817](https://github.com/nix-rust/nix/pull/817))
- Added an `mprotect` wrapper.
  ([#991](https://github.com/nix-rust/nix/pull/991))

### Changed
### Fixed
- `lutimes` never worked on OpenBSD as it is not implemented on OpenBSD. It has
  been removed. ([#1000](https://github.com/nix-rust/nix/pull/1000))
- `fexecve` never worked on NetBSD or on OpenBSD as it is not implemented on
  either OS. It has been removed. ([#1000](https://github.com/nix-rust/nix/pull/1000))

### Removed

## [0.12.0] 2018-11-28

### Added
- Added `FromStr` and `Display` impls for `nix::sys::Signal`
  ([#884](https://github.com/nix-rust/nix/pull/884))
- Added a `sync` wrapper.
  ([#961](https://github.com/nix-rust/nix/pull/961))
- Added a `sysinfo` wrapper.
  ([#922](https://github.com/nix-rust/nix/pull/922))
- Support the `SO_PEERCRED` socket option and the `UnixCredentials` type on all Linux and Android targets.
  ([#921](https://github.com/nix-rust/nix/pull/921))
- Added support for `SCM_CREDENTIALS`, allowing to send process credentials over Unix sockets.
  ([#923](https://github.com/nix-rust/nix/pull/923))
- Added a `dir` module for reading directories (wraps `fdopendir`, `readdir`, and `rewinddir`).
  ([#916](https://github.com/nix-rust/nix/pull/916))
- Added `kmod` module that allows loading and unloading kernel modules on Linux.
  ([#930](https://github.com/nix-rust/nix/pull/930))
- Added `futimens` and `utimesat` wrappers ([#944](https://github.com/nix-rust/nix/pull/944)),
  an `lutimes` wrapper ([#967](https://github.com/nix-rust/nix/pull/967)),
  and a `utimes` wrapper ([#946](https://github.com/nix-rust/nix/pull/946)).
- Added `AF_UNSPEC` wrapper to `AddressFamily` ([#948](https://github.com/nix-rust/nix/pull/948))
- Added the `mode_t` public alias within `sys::stat`.
  ([#954](https://github.com/nix-rust/nix/pull/954))
- Added a `truncate` wrapper.
  ([#956](https://github.com/nix-rust/nix/pull/956))
- Added a `fchownat` wrapper.
  ([#955](https://github.com/nix-rust/nix/pull/955))
- Added support for `ptrace` on BSD operating systems ([#949](https://github.com/nix-rust/nix/pull/949))
- Added `ptrace` functions for reads and writes to tracee memory and ptrace kill
  ([#949](https://github.com/nix-rust/nix/pull/949)) ([#958](https://github.com/nix-rust/nix/pull/958))
- Added a `acct` wrapper module for enabling and disabling process accounting
  ([#952](https://github.com/nix-rust/nix/pull/952))
- Added the `time_t` and `suseconds_t` public aliases within `sys::time`.
  ([#968](https://github.com/nix-rust/nix/pull/968))
- Added `unistd::execvpe` for Haiku, Linux and OpenBSD
  ([#975](https://github.com/nix-rust/nix/pull/975))
- Added `Error::as_errno`.
  ([#977](https://github.com/nix-rust/nix/pull/977))

### Changed
- Increased required Rust version to 1.24.1
  ([#900](https://github.com/nix-rust/nix/pull/900))
  ([#966](https://github.com/nix-rust/nix/pull/966))

### Fixed
- Made `preadv` take immutable slice of IoVec.
  ([#914](https://github.com/nix-rust/nix/pull/914))
- Fixed passing multiple file descriptors over Unix Sockets.
  ([#918](https://github.com/nix-rust/nix/pull/918))

### Removed

## [0.11.0] 2018-06-01

### Added
- Added `sendfile` on FreeBSD and Darwin.
  ([#901](https://github.com/nix-rust/nix/pull/901))
- Added `pselect`
  ([#894](https://github.com/nix-rust/nix/pull/894))
- Exposed `preadv` and `pwritev` on the BSDs.
  ([#883](https://github.com/nix-rust/nix/pull/883))
- Added `mlockall` and `munlockall`
  ([#876](https://github.com/nix-rust/nix/pull/876))
- Added `SO_MARK` on Linux.
  ([#873](https://github.com/nix-rust/nix/pull/873))
- Added safe support for nearly any buffer type in the `sys::aio` module.
  ([#872](https://github.com/nix-rust/nix/pull/872))
- Added `sys::aio::LioCb` as a wrapper for `libc::lio_listio`.
  ([#872](https://github.com/nix-rust/nix/pull/872))
- Added `unistd::getsid`
  ([#850](https://github.com/nix-rust/nix/pull/850))
- Added `alarm`. ([#830](https://github.com/nix-rust/nix/pull/830))
- Added interface flags `IFF_NO_PI, IFF_TUN, IFF_TAP` on linux-like systems.
  ([#853](https://github.com/nix-rust/nix/pull/853))
- Added `statvfs` module to all MacOS and Linux architectures.
  ([#832](https://github.com/nix-rust/nix/pull/832))
- Added `EVFILT_EMPTY`, `EVFILT_PROCDESC`, and `EVFILT_SENDFILE` on FreeBSD.
  ([#825](https://github.com/nix-rust/nix/pull/825))
- Exposed `termios::cfmakesane` on FreeBSD.
  ([#825](https://github.com/nix-rust/nix/pull/825))
- Exposed `MSG_CMSG_CLOEXEC` on *BSD.
  ([#825](https://github.com/nix-rust/nix/pull/825))
- Added `fchmod`, `fchmodat`.
  ([#857](https://github.com/nix-rust/nix/pull/857))
- Added `request_code_write_int!` on FreeBSD/DragonFlyBSD
  ([#833](https://github.com/nix-rust/nix/pull/833))

### Changed
- `Display` and `Debug` for `SysControlAddr` now includes all fields.
  ([#837](https://github.com/nix-rust/nix/pull/837))
- `ioctl!` has been replaced with a family of `ioctl_*!` macros.
  ([#833](https://github.com/nix-rust/nix/pull/833))
- `io!`, `ior!`, `iow!`, and `iorw!` has been renamed to `request_code_none!`, `request_code_read!`,
  `request_code_write!`, and `request_code_readwrite!` respectively. These have also now been exposed
  in the documentation.
  ([#833](https://github.com/nix-rust/nix/pull/833))
- Enabled more `ptrace::Request` definitions for uncommon Linux platforms
  ([#892](https://github.com/nix-rust/nix/pull/892))
- Emulation of `FD_CLOEXEC` and `O_NONBLOCK` was removed from `socket()`, `accept4()`, and
  `socketpair()`.
  ([#907](https://github.com/nix-rust/nix/pull/907))

### Fixed
- Fixed possible panics when using `SigAction::flags` on Linux
  ([#869](https://github.com/nix-rust/nix/pull/869))
- Properly exposed 460800 and 921600 baud rates on NetBSD
  ([#837](https://github.com/nix-rust/nix/pull/837))
- Fixed `ioctl_write_int!` on FreeBSD/DragonFlyBSD
  ([#833](https://github.com/nix-rust/nix/pull/833))
- `ioctl_write_int!` now properly supports passing a `c_ulong` as the parameter on Linux non-musl targets
  ([#833](https://github.com/nix-rust/nix/pull/833))

### Removed
- Removed explicit support for the `bytes` crate from the `sys::aio` module.
  See `sys::aio::AioCb::from_boxed_slice` examples for alternatives.
  ([#872](https://github.com/nix-rust/nix/pull/872))
- Removed `sys::aio::lio_listio`.  Use `sys::aio::LioCb::listio` instead.
  ([#872](https://github.com/nix-rust/nix/pull/872))
- Removed emulated `accept4()` from macos, ios, and netbsd targets
  ([#907](https://github.com/nix-rust/nix/pull/907))
- Removed `IFF_NOTRAILERS` on OpenBSD, as it has been removed in OpenBSD 6.3
  ([#893](https://github.com/nix-rust/nix/pull/893))

## [0.10.0] 2018-01-26

### Added
- Added specialized wrapper: `sys::ptrace::step`
  ([#852](https://github.com/nix-rust/nix/pull/852))
- Added `AioCb::from_ptr` and `AioCb::from_mut_ptr`
  ([#820](https://github.com/nix-rust/nix/pull/820))
- Added specialized wrappers: `sys::ptrace::{traceme, syscall, cont, attach}`. Using the matching routines
  with `sys::ptrace::ptrace` is now deprecated.
- Added `nix::poll` module for all platforms
  ([#672](https://github.com/nix-rust/nix/pull/672))
- Added `nix::ppoll` function for FreeBSD and DragonFly
  ([#672](https://github.com/nix-rust/nix/pull/672))
- Added protocol families in `AddressFamily` enum.
  ([#647](https://github.com/nix-rust/nix/pull/647))
- Added the `pid()` method to `WaitStatus` for extracting the PID.
  ([#722](https://github.com/nix-rust/nix/pull/722))
- Added `nix::unistd:fexecve`.
  ([#727](https://github.com/nix-rust/nix/pull/727))
- Expose `uname()` on all platforms.
  ([#739](https://github.com/nix-rust/nix/pull/739))
- Expose `signalfd` module on Android as well.
  ([#739](https://github.com/nix-rust/nix/pull/739))
- Added `nix::sys::ptrace::detach`.
  ([#749](https://github.com/nix-rust/nix/pull/749))
- Added timestamp socket control message variant:
  `nix::sys::socket::ControlMessage::ScmTimestamp`
  ([#663](https://github.com/nix-rust/nix/pull/663))
- Added socket option variant that enables the timestamp socket
  control message: `nix::sys::socket::sockopt::ReceiveTimestamp`
  ([#663](https://github.com/nix-rust/nix/pull/663))
- Added more accessor methods for `AioCb`
  ([#773](https://github.com/nix-rust/nix/pull/773))
- Add `nix::sys::fallocate`
  ([#768](https:://github.com/nix-rust/nix/pull/768))
- Added `nix::unistd::mkfifo`.
  ([#602](https://github.com/nix-rust/nix/pull/774))
- Added `ptrace::Options::PTRACE_O_EXITKILL` on Linux and Android.
  ([#771](https://github.com/nix-rust/nix/pull/771))
- Added `nix::sys::uio::{process_vm_readv, process_vm_writev}` on Linux
  ([#568](https://github.com/nix-rust/nix/pull/568))
- Added `nix::unistd::{getgroups, setgroups, getgrouplist, initgroups}`. ([#733](https://github.com/nix-rust/nix/pull/733))
- Added `nix::sys::socket::UnixAddr::as_abstract` on Linux and Android.
  ([#785](https://github.com/nix-rust/nix/pull/785))
- Added `nix::unistd::execveat` on Linux and Android.
  ([#800](https://github.com/nix-rust/nix/pull/800))
- Added the `from_raw()` method to `WaitStatus` for converting raw status values
  to `WaitStatus` independent of syscalls.
  ([#741](https://github.com/nix-rust/nix/pull/741))
- Added more standard trait implementations for various types.
  ([#814](https://github.com/nix-rust/nix/pull/814))
- Added `sigprocmask` to the signal module.
  ([#826](https://github.com/nix-rust/nix/pull/826))
- Added `nix::sys::socket::LinkAddr` on Linux and all bsdlike system.
  ([#813](https://github.com/nix-rust/nix/pull/813))
- Add socket options for `IP_TRANSPARENT` / `BIND_ANY`.
  ([#835](https://github.com/nix-rust/nix/pull/835))

### Changed
- Exposed the `mqueue` module for all supported operating systems.
  ([#834](https://github.com/nix-rust/nix/pull/834))
- Use native `pipe2` on all BSD targets.  Users should notice no difference.
  ([#777](https://github.com/nix-rust/nix/pull/777))
- Renamed existing `ptrace` wrappers to encourage namespacing ([#692](https://github.com/nix-rust/nix/pull/692))
- Marked `sys::ptrace::ptrace` as `unsafe`.
- Changed function signature of `socket()` and `socketpair()`. The `protocol` argument
  has changed type from `c_int` to `SockProtocol`.
  It accepts a `None` value for default protocol that was specified with zero using `c_int`.
  ([#647](https://github.com/nix-rust/nix/pull/647))
- Made `select` easier to use, adding the ability to automatically calculate the `nfds` parameter using the new
  `FdSet::highest` ([#701](https://github.com/nix-rust/nix/pull/701))
- Exposed `unistd::setresuid` and `unistd::setresgid` on FreeBSD and OpenBSD
  ([#721](https://github.com/nix-rust/nix/pull/721))
- Refactored the `statvfs` module removing extraneous API functions and the
  `statvfs::vfs` module. Additionally  `(f)statvfs()` now return the struct
  directly. And the returned `Statvfs` struct now exposes its data through
  accessor methods. ([#729](https://github.com/nix-rust/nix/pull/729))
- The `addr` argument to `madvise` and `msync` is now `*mut` to better match the
  libc API. ([#731](https://github.com/nix-rust/nix/pull/731))
- `shm_open` and `shm_unlink` are no longer exposed on Android targets, where
  they are not officially supported. ([#731](https://github.com/nix-rust/nix/pull/731))
- `MapFlags`, `MmapAdvise`, and `MsFlags` expose some more variants and only
  officially-supported variants are provided for each target.
  ([#731](https://github.com/nix-rust/nix/pull/731))
- Marked `pty::ptsname` function as `unsafe`
  ([#744](https://github.com/nix-rust/nix/pull/744))
- Moved constants ptrace request, event and options to enums and updated ptrace functions and argument types accordingly.
  ([#749](https://github.com/nix-rust/nix/pull/749))
- `AioCb::Drop` will now panic if the `AioCb` is still in-progress ([#715](https://github.com/nix-rust/nix/pull/715))
- Restricted `nix::sys::socket::UnixAddr::new_abstract` to Linux and Android only.
  ([#785](https://github.com/nix-rust/nix/pull/785))
- The `ucred` struct has been removed in favor of a `UserCredentials` struct that
  contains only getters for its fields.
  ([#814](https://github.com/nix-rust/nix/pull/814))
- Both `ip_mreq` and `ipv6_mreq` have been replaced with `IpMembershipRequest` and
  `Ipv6MembershipRequest`.
  ([#814](https://github.com/nix-rust/nix/pull/814))
- Removed return type from `pause`.
  ([#829](https://github.com/nix-rust/nix/pull/829))
- Changed the termios APIs to allow for using a `u32` instead of the `BaudRate`
  enum on BSD platforms to support arbitrary baud rates. See the module docs for
  `nix::sys::termios` for more details.
  ([#843](https://github.com/nix-rust/nix/pull/843))

### Fixed
- Fix compilation and tests for OpenBSD targets
  ([#688](https://github.com/nix-rust/nix/pull/688))
- Fixed error handling in `AioCb::fsync`, `AioCb::read`, and `AioCb::write`.
  It is no longer an error to drop an `AioCb` that failed to enqueue in the OS.
  ([#715](https://github.com/nix-rust/nix/pull/715))
- Fix potential memory corruption on non-Linux platforms when using
  `sendmsg`/`recvmsg`, caused by mismatched `msghdr` definition.
  ([#648](https://github.com/nix-rust/nix/pull/648))

### Removed
- `AioCb::from_boxed_slice` has been removed.  It was never actually safe.  Use
  `from_bytes` or `from_bytes_mut` instead.
  ([#820](https://github.com/nix-rust/nix/pull/820))
- The syscall module has been removed. This only exposed enough functionality for
  `memfd_create()` and `pivot_root()`, which are still exposed as separate functions.
  ([#747](https://github.com/nix-rust/nix/pull/747))
- The `Errno` variants are no longer reexported from the `errno` module. `Errno` itself is no longer reexported from the
  crate root and instead must be accessed using the `errno` module. ([#696](https://github.com/nix-rust/nix/pull/696))
- Removed `MS_VERBOSE`, `MS_NOSEC`, and `MS_BORN` from `MsFlags`. These
  are internal kernel flags and should never have been exposed.
  ([#814](https://github.com/nix-rust/nix/pull/814))


## [0.9.0] 2017-07-23

### Added
- Added `sysconf`, `pathconf`, and `fpathconf`
  ([#630](https://github.com/nix-rust/nix/pull/630)
- Added `sys::signal::SigAction::{ flags, mask, handler}`
  ([#611](https://github.com/nix-rust/nix/pull/609)
- Added `nix::sys::pthread::pthread_self`
  ([#591](https://github.com/nix-rust/nix/pull/591)
- Added `AioCb::from_boxed_slice`
  ([#582](https://github.com/nix-rust/nix/pull/582)
- Added `nix::unistd::{openat, fstatat, readlink, readlinkat}`
  ([#551](https://github.com/nix-rust/nix/pull/551))
- Added `nix::pty::{grantpt, posix_openpt, ptsname/ptsname_r, unlockpt}`
  ([#556](https://github.com/nix-rust/nix/pull/556)
- Added `nix::ptr::openpty`
  ([#456](https://github.com/nix-rust/nix/pull/456))
- Added `nix::ptrace::{ptrace_get_data, ptrace_getsiginfo, ptrace_setsiginfo
  and nix::Error::UnsupportedOperation}`
  ([#614](https://github.com/nix-rust/nix/pull/614))
- Added `cfmakeraw`, `cfsetspeed`, and `tcgetsid`. ([#527](https://github.com/nix-rust/nix/pull/527))
- Added "bad none", "bad write_ptr", "bad write_int", and "bad readwrite" variants to the `ioctl!`
  macro. ([#670](https://github.com/nix-rust/nix/pull/670))
- On Linux and Android, added support for receiving `PTRACE_O_TRACESYSGOOD`
  events from `wait` and `waitpid` using `WaitStatus::PtraceSyscall`
  ([#566](https://github.com/nix-rust/nix/pull/566)).

### Changed
- The `ioctl!` macro and its variants now allow the generated functions to have
  doccomments. ([#661](https://github.com/nix-rust/nix/pull/661))
- Changed `ioctl!(write ...)` into `ioctl!(write_ptr ...)` and `ioctl!(write_int ..)` variants
  to more clearly separate those use cases. ([#670](https://github.com/nix-rust/nix/pull/670))
- Marked `sys::mman::{ mmap, munmap, madvise, munlock, msync }` as unsafe.
  ([#559](https://github.com/nix-rust/nix/pull/559))
- Minimum supported Rust version is now 1.13.
- Removed `revents` argument from `PollFd::new()` as it's an output argument and
  will be overwritten regardless of value.
  ([#542](https://github.com/nix-rust/nix/pull/542))
- Changed type signature of `sys::select::FdSet::contains` to make `self`
  immutable ([#564](https://github.com/nix-rust/nix/pull/564))
- Introduced wrapper types for `gid_t`, `pid_t`, and `uid_t` as `Gid`, `Pid`, and `Uid`
  respectively. Various functions have been changed to use these new types as
  arguments. ([#629](https://github.com/nix-rust/nix/pull/629))
- Fixed compilation on all Android and iOS targets ([#527](https://github.com/nix-rust/nix/pull/527))
  and promoted them to Tier 2 support.
- `nix::sys::statfs::{statfs,fstatfs}` uses statfs definition from `libc::statfs` instead of own linux specific type `nix::sys::Statfs`.
  Also file system type constants like `nix::sys::statfs::ADFS_SUPER_MAGIC` were removed in favor of the libc equivalent.
  ([#561](https://github.com/nix-rust/nix/pull/561))
- Revised the termios API including additional tests and documentation and exposed it on iOS. ([#527](https://github.com/nix-rust/nix/pull/527))
- `eventfd`, `signalfd`, and `pwritev`/`preadv` functionality is now included by default for all
  supported platforms. ([#681](https://github.com/nix-rust/nix/pull/561))
- The `ioctl!` macro's plain variants has been replaced with "bad read" to be consistent with
  other variants. The generated functions also have more strict types for their arguments. The
  "*_buf" variants also now calculate total array size and take slice references for improved type
  safety. The documentation has also been dramatically improved.
  ([#670](https://github.com/nix-rust/nix/pull/670))

### Removed
- Removed `io::Error` from `nix::Error` and the conversion from `nix::Error` to `Errno`
  ([#614](https://github.com/nix-rust/nix/pull/614))
- All feature flags have been removed in favor of conditional compilation on supported platforms.
  `execvpe` is no longer supported, but this was already broken and will be added back in the next
  release. ([#681](https://github.com/nix-rust/nix/pull/561))
- Removed `ioc_*` functions and many helper constants and macros within the `ioctl` module. These
  should always have been private and only the `ioctl!` should be used in public code.
  ([#670](https://github.com/nix-rust/nix/pull/670))

### Fixed
- Fixed multiple issues compiling under different archetectures and OSes.
  Now compiles on Linux/MIPS ([#538](https://github.com/nix-rust/nix/pull/538)),
  `Linux/PPC` ([#553](https://github.com/nix-rust/nix/pull/553)),
  `MacOS/x86_64,i686` ([#553](https://github.com/nix-rust/nix/pull/553)),
  `NetBSD/x64_64` ([#538](https://github.com/nix-rust/nix/pull/538)),
  `FreeBSD/x86_64,i686` ([#536](https://github.com/nix-rust/nix/pull/536)), and
  `Android` ([#631](https://github.com/nix-rust/nix/pull/631)).
- `bind` and `errno_location` now work correctly on `Android`
  ([#631](https://github.com/nix-rust/nix/pull/631))
- Added `nix::ptrace` on all Linux-kernel-based platforms
  [#624](https://github.com/nix-rust/nix/pull/624). Previously it was
  only available on x86, x86-64, and ARM, and also not on Android.
- Fixed `sys::socket::sendmsg` with zero entry `cmsgs` parameter.
  ([#623](https://github.com/nix-rust/nix/pull/623))
- Multiple constants related to the termios API have now been properly defined for
  all supported platforms. ([#527](https://github.com/nix-rust/nix/pull/527))
- `ioctl!` macro now supports working with non-int datatypes and properly supports all platforms.
  ([#670](https://github.com/nix-rust/nix/pull/670))

## [0.8.1] 2017-04-16

### Fixed
- Fixed build on FreeBSD. (Cherry-picked
  [a859ee3c](https://github.com/nix-rust/nix/commit/a859ee3c9396dfdb118fcc2c8ecc697e2d303467))

## [0.8.0] 2017-03-02

### Added
- Added `::nix::sys::termios::BaudRate` enum to provide portable baudrate
  values. ([#518](https://github.com/nix-rust/nix/pull/518))
- Added a new `WaitStatus::PtraceEvent` to support ptrace events on Linux
  and Android ([#438](https://github.com/nix-rust/nix/pull/438))
- Added support for POSIX AIO
  ([#483](https://github.com/nix-rust/nix/pull/483))
  ([#506](https://github.com/nix-rust/nix/pull/506))
- Added support for XNU system control sockets
  ([#478](https://github.com/nix-rust/nix/pull/478))
- Added support for `ioctl` calls on BSD platforms
  ([#478](https://github.com/nix-rust/nix/pull/478))
- Added struct `TimeSpec`
  ([#475](https://github.com/nix-rust/nix/pull/475))
  ([#483](https://github.com/nix-rust/nix/pull/483))
- Added complete definitions for all kqueue-related constants on all supported
  OSes
  ([#415](https://github.com/nix-rust/nix/pull/415))
- Added function `epoll_create1` and bitflags `EpollCreateFlags` in
  `::nix::sys::epoll` in order to support `::libc::epoll_create1`.
  ([#410](https://github.com/nix-rust/nix/pull/410))
- Added `setresuid` and `setresgid` for Linux in `::nix::unistd`
  ([#448](https://github.com/nix-rust/nix/pull/448))
- Added `getpgid` in `::nix::unistd`
  ([#433](https://github.com/nix-rust/nix/pull/433))
- Added `tcgetpgrp` and `tcsetpgrp` in `::nix::unistd`
  ([#451](https://github.com/nix-rust/nix/pull/451))
- Added `CLONE_NEWCGROUP` in `::nix::sched`
  ([#457](https://github.com/nix-rust/nix/pull/457))
- Added `getpgrp` in `::nix::unistd`
  ([#491](https://github.com/nix-rust/nix/pull/491))
- Added `fchdir` in `::nix::unistd`
  ([#497](https://github.com/nix-rust/nix/pull/497))
- Added `major` and `minor` in `::nix::sys::stat` for decomposing `dev_t`
  ([#508](https://github.com/nix-rust/nix/pull/508))
- Fixed the style of many bitflags and use `libc` in more places.
  ([#503](https://github.com/nix-rust/nix/pull/503))
- Added `ppoll` in `::nix::poll`
  ([#520](https://github.com/nix-rust/nix/pull/520))
- Added support for getting and setting pipe size with fcntl(2) on Linux
  ([#540](https://github.com/nix-rust/nix/pull/540))

### Changed
- `::nix::sys::termios::{cfgetispeed, cfsetispeed, cfgetospeed, cfsetospeed}`
  switched  to use `BaudRate` enum from `speed_t`.
  ([#518](https://github.com/nix-rust/nix/pull/518))
- `epoll_ctl` now could accept None as argument `event`
  when op is `EpollOp::EpollCtlDel`.
  ([#480](https://github.com/nix-rust/nix/pull/480))
- Removed the `bad` keyword from the `ioctl!` macro
  ([#478](https://github.com/nix-rust/nix/pull/478))
- Changed `TimeVal` into an opaque Newtype
  ([#475](https://github.com/nix-rust/nix/pull/475))
- `kill`'s signature, defined in `::nix::sys::signal`, changed, so that the
  signal parameter has type `T: Into<Option<Signal>>`. `None` as an argument
  for that parameter will result in a 0 passed to libc's `kill`, while a
  `Some`-argument will result in the previous behavior for the contained
  `Signal`.
  ([#445](https://github.com/nix-rust/nix/pull/445))
- The minimum supported version of rustc is now 1.7.0.
  ([#444](https://github.com/nix-rust/nix/pull/444))
- Changed `KEvent` to an opaque structure that may only be modified by its
  constructor and the `ev_set` method.
  ([#415](https://github.com/nix-rust/nix/pull/415))
  ([#442](https://github.com/nix-rust/nix/pull/442))
  ([#463](https://github.com/nix-rust/nix/pull/463))
- `pipe2` now calls `libc::pipe2` where available. Previously it was emulated
  using `pipe`, which meant that setting `O_CLOEXEC` was not atomic.
  ([#427](https://github.com/nix-rust/nix/pull/427))
- Renamed `EpollEventKind` to `EpollFlags` in `::nix::sys::epoll` in order for
  it to conform with our conventions.
  ([#410](https://github.com/nix-rust/nix/pull/410))
- `EpollEvent` in `::nix::sys::epoll` is now an opaque proxy for
  `::libc::epoll_event`. The formerly public field `events` is now be read-only
  accessible with the new method `events()` of `EpollEvent`. Instances of
  `EpollEvent` can be constructed using the new method `new()` of EpollEvent.
  ([#410](https://github.com/nix-rust/nix/pull/410))
- `SigFlags` in `::nix::sys::signal` has be renamed to `SigmaskHow` and its type
  has changed from `bitflags` to `enum` in order to conform to our conventions.
  ([#460](https://github.com/nix-rust/nix/pull/460))
- `sethostname` now takes a `&str` instead of a `&[u8]` as this provides an API
  that makes more sense in normal, correct usage of the API.
- `gethostname` previously did not expose the actual length of the hostname
  written from the underlying system call at all.  This has been updated to
  return a `&CStr` within the provided buffer that is always properly
  NUL-terminated (this is not guaranteed by the call with all platforms/libc
  implementations).
- Exposed all fcntl(2) operations at the module level, so they can be
  imported direclty instead of via `FcntlArg` enum.
  ([#541](https://github.com/nix-rust/nix/pull/541))

### Fixed
- Fixed multiple issues with Unix domain sockets on non-Linux OSes
  ([#474](https://github.com/nix-rust/nix/pull/415))
- Fixed using kqueue with `EVFILT_USER` on FreeBSD
  ([#415](https://github.com/nix-rust/nix/pull/415))
- Fixed the build on FreeBSD, and fixed the getsockopt, sendmsg, and recvmsg
  functions on that same OS.
  ([#397](https://github.com/nix-rust/nix/pull/397))
- Fixed an off-by-one bug in `UnixAddr::new_abstract` in `::nix::sys::socket`.
  ([#429](https://github.com/nix-rust/nix/pull/429))
- Fixed clone passing a potentially unaligned stack.
  ([#490](https://github.com/nix-rust/nix/pull/490))
- Fixed mkdev not creating a `dev_t` the same way as libc.
  ([#508](https://github.com/nix-rust/nix/pull/508))

## [0.7.0] 2016-09-09

### Added
- Added `lseek` and `lseek64` in `::nix::unistd`
  ([#377](https://github.com/nix-rust/nix/pull/377))
- Added `mkdir` and `getcwd` in `::nix::unistd`
  ([#416](https://github.com/nix-rust/nix/pull/416))
- Added accessors `sigmask_mut` and `sigmask` to `UContext` in
  `::nix::ucontext`.
  ([#370](https://github.com/nix-rust/nix/pull/370))
- Added `WUNTRACED` to `WaitPidFlag` in `::nix::sys::wait` for non-_linux_
  targets.
  ([#379](https://github.com/nix-rust/nix/pull/379))
- Added new module `::nix::sys::reboot` with enumeration `RebootMode` and
  functions `reboot` and `set_cad_enabled`. Currently for _linux_ only.
  ([#386](https://github.com/nix-rust/nix/pull/386))
- `FdSet` in `::nix::sys::select` now also implements `Clone`.
  ([#405](https://github.com/nix-rust/nix/pull/405))
- Added `F_FULLFSYNC` to `FcntlArg` in `::nix::fcntl` for _apple_ targets.
  ([#407](https://github.com/nix-rust/nix/pull/407))
- Added `CpuSet::unset` in `::nix::sched`.
  ([#402](https://github.com/nix-rust/nix/pull/402))
- Added constructor method `new()` to `PollFd` in `::nix::poll`, in order to
  allow creation of objects, after removing public access to members.
  ([#399](https://github.com/nix-rust/nix/pull/399))
- Added method `revents()` to `PollFd` in `::nix::poll`, in order to provide
  read access to formerly public member `revents`.
  ([#399](https://github.com/nix-rust/nix/pull/399))
- Added `MSG_CMSG_CLOEXEC` to `MsgFlags` in `::nix::sys::socket` for _linux_ only.
  ([#422](https://github.com/nix-rust/nix/pull/422))

### Changed
- Replaced the reexported integer constants for signals by the enumeration
  `Signal` in `::nix::sys::signal`.
  ([#362](https://github.com/nix-rust/nix/pull/362))
- Renamed `EventFdFlag` to `EfdFlags` in `::nix::sys::eventfd`.
  ([#383](https://github.com/nix-rust/nix/pull/383))
- Changed the result types of `CpuSet::is_set` and `CpuSet::set` in
  `::nix::sched` to `Result<bool>` and `Result<()>`, respectively. They now
  return `EINVAL`, if an invalid argument for the `field` parameter is passed.
  ([#402](https://github.com/nix-rust/nix/pull/402))
- `MqAttr` in `::nix::mqueue` is now an opaque proxy for `::libc::mq_attr`,
  which has the same structure as the old `MqAttr`. The field `mq_flags` of
  `::libc::mq_attr` is readable using the new method `flags()` of `MqAttr`.
  `MqAttr` also no longer implements `Debug`.
  ([#392](https://github.com/nix-rust/nix/pull/392))
- The parameter `msq_prio` of `mq_receive` with type `u32` in `::nix::mqueue`
  was replaced by a parameter named `msg_prio` with type `&mut u32`, so that
  the message priority can be obtained by the caller.
  ([#392](https://github.com/nix-rust/nix/pull/392))
- The type alias `MQd` in `::nix::queue` was replaced by the type alias
  `libc::mqd_t`, both of which are aliases for the same type.
  ([#392](https://github.com/nix-rust/nix/pull/392))

### Removed
- Type alias `SigNum` from `::nix::sys::signal`.
  ([#362](https://github.com/nix-rust/nix/pull/362))
- Type alias `CpuMask` from `::nix::shed`.
  ([#402](https://github.com/nix-rust/nix/pull/402))
- Removed public fields from `PollFd` in `::nix::poll`. (See also added method
  `revents()`.
  ([#399](https://github.com/nix-rust/nix/pull/399))

### Fixed
- Fixed the build problem for NetBSD (Note, that we currently do not support
  it, so it might already be broken again).
  ([#389](https://github.com/nix-rust/nix/pull/389))
- Fixed the build on FreeBSD, and fixed the getsockopt, sendmsg, and recvmsg
  functions on that same OS.
  ([#397](https://github.com/nix-rust/nix/pull/397))

## [0.6.0] 2016-06-10

### Added
- Added `gettid` in `::nix::unistd` for _linux_ and _android_.
  ([#293](https://github.com/nix-rust/nix/pull/293))
- Some _mips_ support in `::nix::sched` and `::nix::sys::syscall`.
  ([#301](https://github.com/nix-rust/nix/pull/301))
- Added `SIGNALFD_SIGINFO_SIZE` in `::nix::sys::signalfd`.
  ([#309](https://github.com/nix-rust/nix/pull/309))
- Added new module `::nix::ucontext` with struct `UContext`. Currently for
  _linux_ only.
  ([#311](https://github.com/nix-rust/nix/pull/311))
- Added `EPOLLEXCLUSIVE` to `EpollEventKind` in `::nix::sys::epoll`.
  ([#330](https://github.com/nix-rust/nix/pull/330))
- Added `pause` to `::nix::unistd`.
  ([#336](https://github.com/nix-rust/nix/pull/336))
- Added `sleep` to `::nix::unistd`.
  ([#351](https://github.com/nix-rust/nix/pull/351))
- Added `S_IFDIR`, `S_IFLNK`, `S_IFMT` to `SFlag` in `::nix::sys::stat`.
  ([#359](https://github.com/nix-rust/nix/pull/359))
- Added `clear` and `extend` functions to `SigSet`'s implementation in
  `::nix::sys::signal`.
  ([#347](https://github.com/nix-rust/nix/pull/347))
- `sockaddr_storage_to_addr` in `::nix::sys::socket` now supports `sockaddr_nl`
  on _linux_ and _android_.
  ([#366](https://github.com/nix-rust/nix/pull/366))
- Added support for `SO_ORIGINAL_DST` in `::nix::sys::socket` on _linux_.
  ([#367](https://github.com/nix-rust/nix/pull/367))
- Added `SIGINFO` in `::nix::sys::signal` for the _macos_ target as well as
  `SIGPWR` and `SIGSTKFLT` in `::nix::sys::signal` for non-_macos_ targets.
  ([#361](https://github.com/nix-rust/nix/pull/361))

### Changed
- Changed the structure `IoVec` in `::nix::sys::uio`.
  ([#304](https://github.com/nix-rust/nix/pull/304))
- Replaced `CREATE_NEW_FD` by `SIGNALFD_NEW` in `::nix::sys::signalfd`.
  ([#309](https://github.com/nix-rust/nix/pull/309))
- Renamed `SaFlag` to `SaFlags` and `SigFlag` to `SigFlags` in
  `::nix::sys::signal`.
  ([#314](https://github.com/nix-rust/nix/pull/314))
- Renamed `Fork` to `ForkResult` and changed its fields in `::nix::unistd`.
  ([#332](https://github.com/nix-rust/nix/pull/332))
- Added the `signal` parameter to `clone`'s signature in `::nix::sched`.
  ([#344](https://github.com/nix-rust/nix/pull/344))
- `execv`, `execve`, and `execvp` now return `Result<Void>` instead of
  `Result<()>` in `::nix::unistd`.
  ([#357](https://github.com/nix-rust/nix/pull/357))

### Fixed
- Improved the conversion from `std::net::SocketAddr` to `InetAddr` in
  `::nix::sys::socket::addr`.
  ([#335](https://github.com/nix-rust/nix/pull/335))

## [0.5.0] 2016-03-01