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pub type wchar_t = i32;

pub type time_t = i64;

pub type mode_t = u32;

pub type nlink_t = u32;

pub type ino_t = u64;

pub type pthread_key_t = ::c_int;

pub type rlim_t = u64;

pub type speed_t = ::c_uint;

pub type tcflag_t = ::c_uint;

pub type nl_item = c_long;

pub type clockid_t = ::c_int;

pub type id_t = u32;

pub type sem_t = *mut sem;

pub type key_t = c_long;

#[cfg_attr(feature = "extra_traits", derive(Debug))]

pub enum timezone {}

impl ::Copy for timezone {}

impl ::Clone for timezone {

    fn clone(&self) -> timezone {

        *self

#[cfg_attr(feature = "extra_traits", derive(Debug))]

pub enum sem {}

impl ::Copy for sem {}

impl ::Clone for sem {

    fn clone(&self) -> sem {

        *self

s! {

    pub struct sched_param {

        pub sched_priority: ::c_int,

    pub struct sigaction {

        pub sa_sigaction: ::sighandler_t,

        pub sa_mask: ::sigset_t,

        pub sa_flags: ::c_int,

    pub struct stack_t {

        pub ss_sp: *mut ::c_void,

        pub ss_size: ::size_t,

        pub ss_flags: ::c_int,

    pub struct in6_pktinfo {

        pub ipi6_addr: ::in6_addr,

        pub ipi6_ifindex: ::c_uint,

    pub struct termios {

        pub c_iflag: ::tcflag_t,

        pub c_oflag: ::tcflag_t,

        pub c_cflag: ::tcflag_t,

        pub c_lflag: ::tcflag_t,

        pub c_cc: [::cc_t; ::NCCS],

        pub c_ispeed: ::c_int,

        pub c_ospeed: ::c_int,

    pub struct flock {

        pub l_start: ::off_t,

        pub l_len: ::off_t,

        pub l_pid: ::pid_t,

        pub l_type: ::c_short,

        pub l_whence: ::c_short,

    pub struct ipc_perm {

        pub cuid: ::uid_t,

        pub cgid: ::gid_t,

        pub uid: ::uid_t,

        pub gid: ::gid_t,

        pub mode: ::mode_t,

        #[cfg(target_os = "openbsd")]

        pub seq: ::c_ushort,

        #[cfg(target_os = "netbsd")]

        pub _seq: ::c_ushort,

        #[cfg(target_os = "openbsd")]

        pub key: ::key_t,

        #[cfg(target_os = "netbsd")]

        pub _key: ::key_t,

    pub struct ptrace_io_desc {

        pub piod_op: ::c_int,

        pub piod_offs: *mut ::c_void,

        pub piod_addr: *mut ::c_void,

        pub piod_len: ::size_t,

pub const D_T_FMT: ::nl_item = 0;

pub const D_FMT: ::nl_item = 1;

pub const T_FMT: ::nl_item = 2;

pub const T_FMT_AMPM: ::nl_item = 3;

pub const AM_STR: ::nl_item = 4;

pub const PM_STR: ::nl_item = 5;

pub const DAY_1: ::nl_item = 6;

pub const DAY_2: ::nl_item = 7;

pub const DAY_3: ::nl_item = 8;

pub const DAY_4: ::nl_item = 9;

pub const DAY_5: ::nl_item = 10;

pub const DAY_6: ::nl_item = 11;

pub const DAY_7: ::nl_item = 12;

pub const ABDAY_1: ::nl_item = 13;

pub const ABDAY_2: ::nl_item = 14;

pub const ABDAY_3: ::nl_item = 15;

pub const ABDAY_4: ::nl_item = 16;

pub const ABDAY_5: ::nl_item = 17;

pub const ABDAY_6: ::nl_item = 18;

pub const ABDAY_7: ::nl_item = 19;

pub const MON_1: ::nl_item = 20;

pub const MON_2: ::nl_item = 21;

pub const MON_3: ::nl_item = 22;

pub const MON_4: ::nl_item = 23;

pub const MON_5: ::nl_item = 24;

pub const MON_6: ::nl_item = 25;

pub const MON_7: ::nl_item = 26;

pub const MON_8: ::nl_item = 27;

pub const MON_9: ::nl_item = 28;

pub const MON_10: ::nl_item = 29;

pub const MON_11: ::nl_item = 30;

pub const MON_12: ::nl_item = 31;

pub const ABMON_1: ::nl_item = 32;

pub const ABMON_2: ::nl_item = 33;

pub const ABMON_3: ::nl_item = 34;

pub const ABMON_4: ::nl_item = 35;

pub const ABMON_5: ::nl_item = 36;

pub const ABMON_6: ::nl_item = 37;

pub const ABMON_7: ::nl_item = 38;

pub const ABMON_8: ::nl_item = 39;

pub const ABMON_9: ::nl_item = 40;

pub const ABMON_10: ::nl_item = 41;

pub const ABMON_11: ::nl_item = 42;

pub const ABMON_12: ::nl_item = 43;

pub const RADIXCHAR: ::nl_item = 44;

pub const THOUSEP: ::nl_item = 45;

pub const YESSTR: ::nl_item = 46;

pub const YESEXPR: ::nl_item = 47;

pub const NOSTR: ::nl_item = 48;

pub const NOEXPR: ::nl_item = 49;

pub const CRNCYSTR: ::nl_item = 50;

pub const CODESET: ::nl_item = 51;

pub const EXIT_FAILURE: ::c_int = 1;

pub const EXIT_SUCCESS: ::c_int = 0;

pub const RAND_MAX: ::c_int = 2147483647;

pub const EOF: ::c_int = -1;

pub const SEEK_SET: ::c_int = 0;

pub const SEEK_CUR: ::c_int = 1;

pub const SEEK_END: ::c_int = 2;

pub const _IOFBF: ::c_int = 0;

pub const _IONBF: ::c_int = 2;

pub const _IOLBF: ::c_int = 1;

pub const BUFSIZ: ::c_uint = 1024;

pub const FOPEN_MAX: ::c_uint = 20;

pub const FILENAME_MAX: ::c_uint = 1024;

pub const L_tmpnam: ::c_uint = 1024;

pub const O_NOCTTY: ::c_int = 32768;

pub const S_IFIFO: mode_t = 4096;

pub const S_IFCHR: mode_t = 8192;

pub const S_IFBLK: mode_t = 24576;

pub const S_IFDIR: mode_t = 16384;

pub const S_IFREG: mode_t = 32768;

pub const S_IFLNK: mode_t = 40960;

pub const S_IFSOCK: mode_t = 49152;

pub const S_IFMT: mode_t = 61440;

pub const S_IEXEC: mode_t = 64;

pub const S_IWRITE: mode_t = 128;

pub const S_IREAD: mode_t = 256;

pub const S_IRWXU: mode_t = 448;

pub const S_IXUSR: mode_t = 64;

pub const S_IWUSR: mode_t = 128;

pub const S_IRUSR: mode_t = 256;

pub const S_IRWXG: mode_t = 56;

pub const S_IXGRP: mode_t = 8;

pub const S_IWGRP: mode_t = 16;

pub const S_IRGRP: mode_t = 32;

pub const S_IRWXO: mode_t = 7;

pub const S_IXOTH: mode_t = 1;

pub const S_IWOTH: mode_t = 2;

pub const S_IROTH: mode_t = 4;

pub const F_OK: ::c_int = 0;

pub const R_OK: ::c_int = 4;

pub const W_OK: ::c_int = 2;

pub const X_OK: ::c_int = 1;

pub const STDIN_FILENO: ::c_int = 0;

pub const STDOUT_FILENO: ::c_int = 1;

pub const STDERR_FILENO: ::c_int = 2;

pub const F_LOCK: ::c_int = 1;

pub const F_TEST: ::c_int = 3;

pub const F_TLOCK: ::c_int = 2;

pub const F_ULOCK: ::c_int = 0;

pub const F_GETLK: ::c_int = 7;

pub const F_SETLK: ::c_int = 8;

pub const F_SETLKW: ::c_int = 9;

pub const SIGHUP: ::c_int = 1;

pub const SIGINT: ::c_int = 2;

pub const SIGQUIT: ::c_int = 3;

pub const SIGILL: ::c_int = 4;

pub const SIGABRT: ::c_int = 6;

pub const SIGEMT: ::c_int = 7;

pub const SIGFPE: ::c_int = 8;

pub const SIGKILL: ::c_int = 9;

pub const SIGSEGV: ::c_int = 11;

pub const SIGPIPE: ::c_int = 13;

pub const SIGALRM: ::c_int = 14;

pub const SIGTERM: ::c_int = 15;

pub const PROT_NONE: ::c_int = 0;

pub const PROT_READ: ::c_int = 1;

pub const PROT_WRITE: ::c_int = 2;

pub const PROT_EXEC: ::c_int = 4;

pub const MAP_FILE: ::c_int = 0x0000;

pub const MAP_SHARED: ::c_int = 0x0001;

pub const MAP_PRIVATE: ::c_int = 0x0002;

pub const MAP_FIXED: ::c_int = 0x0010;

pub const MAP_ANON: ::c_int = 0x1000;

pub const MAP_ANONYMOUS: ::c_int = MAP_ANON;

pub const MAP_FAILED: *mut ::c_void = !0 as *mut ::c_void;

pub const IPC_CREAT: ::c_int = 0o001000;

pub const IPC_EXCL: ::c_int = 0o002000;

pub const IPC_NOWAIT: ::c_int = 0o004000;

pub const IPC_PRIVATE: ::key_t = 0;

pub const IPC_RMID: ::c_int = 0;

pub const IPC_SET: ::c_int = 1;

pub const IPC_STAT: ::c_int = 2;

pub const IPC_R: ::c_int = 0o000400;

pub const IPC_W: ::c_int = 0o000200;

pub const IPC_M: ::c_int = 0o010000;

pub const SHM_R: ::c_int = IPC_R;

pub const SHM_W: ::c_int = IPC_W;

pub const MCL_CURRENT: ::c_int = 0x0001;

pub const MCL_FUTURE: ::c_int = 0x0002;

pub const MS_ASYNC: ::c_int = 0x0001;

pub const EPERM: ::c_int = 1;

pub const ENOENT: ::c_int = 2;

pub const ESRCH: ::c_int = 3;

pub const EINTR: ::c_int = 4;

pub const EIO: ::c_int = 5;

pub const ENXIO: ::c_int = 6;

pub const E2BIG: ::c_int = 7;

pub const ENOEXEC: ::c_int = 8;

pub const EBADF: ::c_int = 9;

pub const ECHILD: ::c_int = 10;

pub const EDEADLK: ::c_int = 11;

pub const ENOMEM: ::c_int = 12;

pub const EACCES: ::c_int = 13;

pub const EFAULT: ::c_int = 14;

pub const ENOTBLK: ::c_int = 15;

pub const EBUSY: ::c_int = 16;

pub const EEXIST: ::c_int = 17;

pub const EXDEV: ::c_int = 18;

pub const ENODEV: ::c_int = 19;

pub const ENOTDIR: ::c_int = 20;

pub const EISDIR: ::c_int = 21;

pub const EINVAL: ::c_int = 22;

pub const ENFILE: ::c_int = 23;

pub const EMFILE: ::c_int = 24;

pub const ENOTTY: ::c_int = 25;

pub const ETXTBSY: ::c_int = 26;

pub const EFBIG: ::c_int = 27;

pub const ENOSPC: ::c_int = 28;

pub const ESPIPE: ::c_int = 29;

pub const EROFS: ::c_int = 30;

pub const EMLINK: ::c_int = 31;

pub const EPIPE: ::c_int = 32;

pub const EDOM: ::c_int = 33;

pub const ERANGE: ::c_int = 34;

pub const EAGAIN: ::c_int = 35;

pub const EWOULDBLOCK: ::c_int = 35;

pub const EINPROGRESS: ::c_int = 36;

pub const EALREADY: ::c_int = 37;

pub const ENOTSOCK: ::c_int = 38;

pub const EDESTADDRREQ: ::c_int = 39;

pub const EMSGSIZE: ::c_int = 40;

pub const EPROTOTYPE: ::c_int = 41;

pub const ENOPROTOOPT: ::c_int = 42;

pub const EPROTONOSUPPORT: ::c_int = 43;

pub const ESOCKTNOSUPPORT: ::c_int = 44;

pub const EOPNOTSUPP: ::c_int = 45;

pub const EPFNOSUPPORT: ::c_int = 46;

pub const EAFNOSUPPORT: ::c_int = 47;

pub const EADDRINUSE: ::c_int = 48;

pub const EADDRNOTAVAIL: ::c_int = 49;

pub const ENETDOWN: ::c_int = 50;

pub const ENETUNREACH: ::c_int = 51;

pub const ENETRESET: ::c_int = 52;

pub const ECONNABORTED: ::c_int = 53;

pub const ECONNRESET: ::c_int = 54;

pub const ENOBUFS: ::c_int = 55;

pub const EISCONN: ::c_int = 56;

pub const ENOTCONN: ::c_int = 57;

pub const ESHUTDOWN: ::c_int = 58;

pub const ETOOMANYREFS: ::c_int = 59;

pub const ETIMEDOUT: ::c_int = 60;

pub const ECONNREFUSED: ::c_int = 61;

pub const ELOOP: ::c_int = 62;

pub const ENAMETOOLONG: ::c_int = 63;

pub const EHOSTDOWN: ::c_int = 64;

pub const EHOSTUNREACH: ::c_int = 65;

pub const ENOTEMPTY: ::c_int = 66;

pub const EPROCLIM: ::c_int = 67;

pub const EUSERS: ::c_int = 68;

pub const EDQUOT: ::c_int = 69;

pub const ESTALE: ::c_int = 70;

pub const EREMOTE: ::c_int = 71;

pub const EBADRPC: ::c_int = 72;

pub const ERPCMISMATCH: ::c_int = 73;

pub const EPROGUNAVAIL: ::c_int = 74;

pub const EPROGMISMATCH: ::c_int = 75;

pub const EPROCUNAVAIL: ::c_int = 76;

pub const ENOLCK: ::c_int = 77;

pub const ENOSYS: ::c_int = 78;

pub const EFTYPE: ::c_int = 79;

pub const EAUTH: ::c_int = 80;

pub const ENEEDAUTH: ::c_int = 81;

pub const F_DUPFD: ::c_int = 0;

pub const F_GETFD: ::c_int = 1;

pub const F_SETFD: ::c_int = 2;

pub const F_GETFL: ::c_int = 3;

pub const F_SETFL: ::c_int = 4;

pub const SIGTRAP: ::c_int = 5;

pub const GLOB_APPEND: ::c_int = 0x0001;

pub const GLOB_DOOFFS: ::c_int = 0x0002;

pub const GLOB_ERR: ::c_int = 0x0004;

pub const GLOB_MARK: ::c_int = 0x0008;

pub const GLOB_NOCHECK: ::c_int = 0x0010;

pub const GLOB_NOSORT: ::c_int = 0x0020;

pub const GLOB_NOESCAPE: ::c_int = 0x1000;

pub const GLOB_NOSPACE: ::c_int = -1;

pub const GLOB_ABORTED: ::c_int = -2;

pub const GLOB_NOMATCH: ::c_int = -3;

pub const GLOB_NOSYS: ::c_int = -4;

pub const POSIX_MADV_NORMAL: ::c_int = 0;

pub const POSIX_MADV_RANDOM: ::c_int = 1;

pub const POSIX_MADV_SEQUENTIAL: ::c_int = 2;

pub const POSIX_MADV_WILLNEED: ::c_int = 3;

pub const POSIX_MADV_DONTNEED: ::c_int = 4;

pub const POSIX_SPAWN_RESETIDS: ::c_int = 0x01;

pub const POSIX_SPAWN_SETPGROUP: ::c_int = 0x02;

pub const POSIX_SPAWN_SETSCHEDPARAM: ::c_int = 0x04;

pub const POSIX_SPAWN_SETSCHEDULER: ::c_int = 0x08;

pub const POSIX_SPAWN_SETSIGDEF: ::c_int = 0x10;

pub const POSIX_SPAWN_SETSIGMASK: ::c_int = 0x20;

pub const PTHREAD_CREATE_JOINABLE: ::c_int = 0;

pub const PTHREAD_CREATE_DETACHED: ::c_int = 1;

pub const PIOD_READ_D: ::c_int = 1;

pub const PIOD_WRITE_D: ::c_int = 2;

pub const PIOD_READ_I: ::c_int = 3;

pub const PIOD_WRITE_I: ::c_int = 4;

pub const PIOD_READ_AUXV: ::c_int = 5;

pub const PT_TRACE_ME: ::c_int = 0;

pub const PT_READ_I: ::c_int = 1;

pub const PT_READ_D: ::c_int = 2;

pub const PT_WRITE_I: ::c_int = 4;

pub const PT_WRITE_D: ::c_int = 5;

pub const PT_CONTINUE: ::c_int = 7;

pub const PT_KILL: ::c_int = 8;

pub const PT_ATTACH: ::c_int = 9;

pub const PT_DETACH: ::c_int = 10;

pub const PT_IO: ::c_int = 11;

// http://man.openbsd.org/OpenBSD-current/man2/clock_getres.2

// The man page says clock_gettime(3) can accept various values as clockid_t but

// http://fxr.watson.org/fxr/source/kern/kern_time.c?v=OPENBSD;im=excerpts#L161

// the implementation rejects anything other than the below two

//

// http://netbsd.gw.com/cgi-bin/man-cgi?clock_gettime

// https://github.com/jsonn/src/blob/HEAD/sys/kern/subr_time.c#L222

// Basically the same goes for NetBSD

pub const CLOCK_REALTIME: ::clockid_t = 0;

pub const CLOCK_MONOTONIC: ::clockid_t = 3;

pub const RLIMIT_CPU: ::c_int = 0;

pub const RLIMIT_FSIZE: ::c_int = 1;

pub const RLIMIT_DATA: ::c_int = 2;

pub const RLIMIT_STACK: ::c_int = 3;

pub const RLIMIT_CORE: ::c_int = 4;

pub const RLIMIT_RSS: ::c_int = 5;

pub const RLIMIT_MEMLOCK: ::c_int = 6;

pub const RLIMIT_NPROC: ::c_int = 7;

pub const RLIMIT_NOFILE: ::c_int = 8;

pub const RLIM_INFINITY: rlim_t = 0x7fff_ffff_ffff_ffff;

pub const RLIM_SAVED_MAX: rlim_t = RLIM_INFINITY;

pub const RLIM_SAVED_CUR: rlim_t = RLIM_INFINITY;

pub const RUSAGE_SELF: ::c_int = 0;

pub const RUSAGE_CHILDREN: ::c_int = -1;

pub const MADV_NORMAL: ::c_int = 0;

pub const MADV_RANDOM: ::c_int = 1;

pub const MADV_SEQUENTIAL: ::c_int = 2;

pub const MADV_WILLNEED: ::c_int = 3;

pub const MADV_DONTNEED: ::c_int = 4;

pub const MADV_FREE: ::c_int = 6;

// sys/fstypes.h in NetBSD, or sys/mount.h in OpenBSD

pub const MNT_NODEV: ::c_int = 0x00000010;

pub const MNT_LOCAL: ::c_int = 0x00001000;

pub const MNT_QUOTA: ::c_int = 0x00002000;

pub const AF_UNSPEC: ::c_int = 0;

pub const AF_LOCAL: ::c_int = 1;

pub const AF_UNIX: ::c_int = AF_LOCAL;

pub const AF_INET: ::c_int = 2;

pub const AF_IMPLINK: ::c_int = 3;

pub const AF_PUP: ::c_int = 4;

pub const AF_CHAOS: ::c_int = 5;

pub const AF_NS: ::c_int = 6;

pub const AF_ISO: ::c_int = 7;

pub const AF_OSI: ::c_int = AF_ISO;

pub const AF_DATAKIT: ::c_int = 9;

pub const AF_CCITT: ::c_int = 10;

pub const AF_SNA: ::c_int = 11;

pub const AF_DECnet: ::c_int = 12;

pub const AF_DLI: ::c_int = 13;

pub const AF_LAT: ::c_int = 14;

pub const AF_HYLINK: ::c_int = 15;

pub const AF_APPLETALK: ::c_int = 16;

pub const AF_LINK: ::c_int = 18;

pub const pseudo_AF_XTP: ::c_int = 19;

pub const AF_COIP: ::c_int = 20;

pub const AF_CNT: ::c_int = 21;

pub const pseudo_AF_RTIP: ::c_int = 22;

pub const AF_IPX: ::c_int = 23;

pub const AF_INET6: ::c_int = 24;

pub const pseudo_AF_PIP: ::c_int = 25;

pub const AF_ISDN: ::c_int = 26;

pub const AF_E164: ::c_int = AF_ISDN;

pub const AF_NATM: ::c_int = 27;

pub const PF_UNSPEC: ::c_int = AF_UNSPEC;

pub const PF_LOCAL: ::c_int = AF_LOCAL;

pub const PF_UNIX: ::c_int = PF_LOCAL;

pub const PF_INET: ::c_int = AF_INET;

pub const PF_IMPLINK: ::c_int = AF_IMPLINK;

pub const PF_PUP: ::c_int = AF_PUP;

pub const PF_CHAOS: ::c_int = AF_CHAOS;

pub const PF_NS: ::c_int = AF_NS;

pub const PF_ISO: ::c_int = AF_ISO;

pub const PF_OSI: ::c_int = AF_ISO;

pub const PF_DATAKIT: ::c_int = AF_DATAKIT;

pub const PF_CCITT: ::c_int = AF_CCITT;

pub const PF_SNA: ::c_int = AF_SNA;

pub const PF_DECnet: ::c_int = AF_DECnet;

pub const PF_DLI: ::c_int = AF_DLI;

pub const PF_LAT: ::c_int = AF_LAT;

pub const PF_HYLINK: ::c_int = AF_HYLINK;

pub const PF_APPLETALK: ::c_int = AF_APPLETALK;

pub const PF_LINK: ::c_int = AF_LINK;

pub const PF_XTP: ::c_int = pseudo_AF_XTP;

pub const PF_COIP: ::c_int = AF_COIP;

pub const PF_CNT: ::c_int = AF_CNT;

pub const PF_IPX: ::c_int = AF_IPX;

pub const PF_INET6: ::c_int = AF_INET6;

pub const PF_RTIP: ::c_int = pseudo_AF_RTIP;

pub const PF_PIP: ::c_int = pseudo_AF_PIP;

pub const PF_ISDN: ::c_int = AF_ISDN;

pub const PF_NATM: ::c_int = AF_NATM;

pub const SOCK_STREAM: ::c_int = 1;

pub const SOCK_DGRAM: ::c_int = 2;

pub const SOCK_RAW: ::c_int = 3;

pub const SOCK_RDM: ::c_int = 4;

pub const SOCK_SEQPACKET: ::c_int = 5;

pub const IP_TTL: ::c_int = 4;

pub const IP_HDRINCL: ::c_int = 2;

pub const IP_ADD_MEMBERSHIP: ::c_int = 12;

pub const IP_DROP_MEMBERSHIP: ::c_int = 13;

pub const IPV6_RECVPKTINFO: ::c_int = 36;

pub const IPV6_PKTINFO: ::c_int = 46;

pub const IPV6_RECVTCLASS: ::c_int = 57;

pub const IPV6_TCLASS: ::c_int = 61;

pub const SOL_SOCKET: ::c_int = 0xffff;

pub const SO_DEBUG: ::c_int = 0x01;

pub const SO_ACCEPTCONN: ::c_int = 0x0002;

pub const SO_REUSEADDR: ::c_int = 0x0004;

pub const SO_KEEPALIVE: ::c_int = 0x0008;

pub const SO_DONTROUTE: ::c_int = 0x0010;

pub const SO_BROADCAST: ::c_int = 0x0020;

pub const SO_USELOOPBACK: ::c_int = 0x0040;

pub const SO_LINGER: ::c_int = 0x0080;

pub const SO_OOBINLINE: ::c_int = 0x0100;

pub const SO_REUSEPORT: ::c_int = 0x0200;

pub const SO_SNDBUF: ::c_int = 0x1001;

pub const SO_RCVBUF: ::c_int = 0x1002;

pub const SO_SNDLOWAT: ::c_int = 0x1003;

pub const SO_RCVLOWAT: ::c_int = 0x1004;

pub const SO_ERROR: ::c_int = 0x1007;

pub const SO_TYPE: ::c_int = 0x1008;

pub const SOMAXCONN: ::c_int = 128;

pub const MSG_OOB: ::c_int = 0x1;

pub const MSG_PEEK: ::c_int = 0x2;

pub const MSG_DONTROUTE: ::c_int = 0x4;

pub const MSG_EOR: ::c_int = 0x8;

pub const MSG_TRUNC: ::c_int = 0x10;

pub const MSG_CTRUNC: ::c_int = 0x20;

pub const MSG_WAITALL: ::c_int = 0x40;

pub const MSG_DONTWAIT: ::c_int = 0x80;

pub const MSG_BCAST: ::c_int = 0x100;

pub const MSG_MCAST: ::c_int = 0x200;

pub const MSG_NOSIGNAL: ::c_int = 0x400;

pub const MSG_CMSG_CLOEXEC: ::c_int = 0x800;

pub const SHUT_RD: ::c_int = 0;

pub const SHUT_WR: ::c_int = 1;

pub const SHUT_RDWR: ::c_int = 2;

pub const LOCK_SH: ::c_int = 1;

pub const LOCK_EX: ::c_int = 2;

pub const LOCK_NB: ::c_int = 4;

pub const LOCK_UN: ::c_int = 8;

pub const IPPROTO_RAW: ::c_int = 255;

pub const _SC_ARG_MAX: ::c_int = 1;

pub const _SC_CHILD_MAX: ::c_int = 2;

pub const _SC_NGROUPS_MAX: ::c_int = 4;

pub const _SC_OPEN_MAX: ::c_int = 5;

pub const _SC_JOB_CONTROL: ::c_int = 6;

pub const _SC_SAVED_IDS: ::c_int = 7;

pub const _SC_VERSION: ::c_int = 8;

pub const _SC_BC_BASE_MAX: ::c_int = 9;

pub const _SC_BC_DIM_MAX: ::c_int = 10;

pub const _SC_BC_SCALE_MAX: ::c_int = 11;

pub const _SC_BC_STRING_MAX: ::c_int = 12;

pub const _SC_COLL_WEIGHTS_MAX: ::c_int = 13;

pub const _SC_EXPR_NEST_MAX: ::c_int = 14;

pub const _SC_LINE_MAX: ::c_int = 15;

pub const _SC_RE_DUP_MAX: ::c_int = 16;

pub const _SC_2_VERSION: ::c_int = 17;

pub const _SC_2_C_BIND: ::c_int = 18;

pub const _SC_2_C_DEV: ::c_int = 19;

pub const _SC_2_CHAR_TERM: ::c_int = 20;

pub const _SC_2_FORT_DEV: ::c_int = 21;

pub const _SC_2_FORT_RUN: ::c_int = 22;

pub const _SC_2_LOCALEDEF: ::c_int = 23;

pub const _SC_2_SW_DEV: ::c_int = 24;

pub const _SC_2_UPE: ::c_int = 25;

pub const _SC_STREAM_MAX: ::c_int = 26;

pub const _SC_TZNAME_MAX: ::c_int = 27;

pub const _SC_PAGESIZE: ::c_int = 28;

pub const _SC_PAGE_SIZE: ::c_int = _SC_PAGESIZE;

pub const _SC_FSYNC: ::c_int = 29;

pub const _SC_XOPEN_SHM: ::c_int = 30;

pub const Q_GETQUOTA: ::c_int = 0x300;

pub const Q_SETQUOTA: ::c_int = 0x400;

pub const RTLD_GLOBAL: ::c_int = 0x100;

pub const LOG_NFACILITIES: ::c_int = 24;

pub const HW_NCPU: ::c_int = 3;

pub const B0: speed_t = 0;

pub const B50: speed_t = 50;

pub const B75: speed_t = 75;

pub const B110: speed_t = 110;

pub const B134: speed_t = 134;

pub const B150: speed_t = 150;

pub const B200: speed_t = 200;

pub const B300: speed_t = 300;

pub const B600: speed_t = 600;

pub const B1200: speed_t = 1200;

pub const B1800: speed_t = 1800;

pub const B2400: speed_t = 2400;

pub const B4800: speed_t = 4800;

pub const B9600: speed_t = 9600;

pub const B19200: speed_t = 19200;

pub const B38400: speed_t = 38400;

pub const B7200: speed_t = 7200;

pub const B14400: speed_t = 14400;

pub const B28800: speed_t = 28800;

pub const B57600: speed_t = 57600;

pub const B76800: speed_t = 76800;

pub const B115200: speed_t = 115200;

pub const B230400: speed_t = 230400;

pub const EXTA: speed_t = 19200;

pub const EXTB: speed_t = 38400;

pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;

pub const CRTSCTS: ::tcflag_t = 0x00010000;

pub const CRTS_IFLOW: ::tcflag_t = CRTSCTS;

pub const CCTS_OFLOW: ::tcflag_t = CRTSCTS;

pub const OCRNL: ::tcflag_t = 0x10;

pub const TIOCEXCL: ::c_ulong = 0x2000740d;

pub const TIOCNXCL: ::c_ulong = 0x2000740e;

pub const TIOCFLUSH: ::c_ulong = 0x80047410;

pub const TIOCGETA: ::c_ulong = 0x402c7413;

pub const TIOCSETA: ::c_ulong = 0x802c7414;

pub const TIOCSETAW: ::c_ulong = 0x802c7415;

pub const TIOCSETAF: ::c_ulong = 0x802c7416;

pub const TIOCGETD: ::c_ulong = 0x4004741a;

pub const TIOCSETD: ::c_ulong = 0x8004741b;

pub const TIOCMGET: ::c_ulong = 0x4004746a;

pub const TIOCMBIC: ::c_ulong = 0x8004746b;

pub const TIOCMBIS: ::c_ulong = 0x8004746c;

pub const TIOCMSET: ::c_ulong = 0x8004746d;

pub const TIOCSTART: ::c_ulong = 0x2000746e;

pub const TIOCSTOP: ::c_ulong = 0x2000746f;

pub const TIOCSCTTY: ::c_ulong = 0x20007461;

pub const TIOCGWINSZ: ::c_ulong = 0x40087468;

pub const TIOCSWINSZ: ::c_ulong = 0x80087467;

pub const TIOCM_LE: ::c_int = 0o0001;

pub const TIOCM_DTR: ::c_int = 0o0002;

pub const TIOCM_RTS: ::c_int = 0o0004;

pub const TIOCM_ST: ::c_int = 0o0010;

pub const TIOCM_SR: ::c_int = 0o0020;

pub const TIOCM_CTS: ::c_int = 0o0040;

pub const TIOCM_CAR: ::c_int = 0o0100;

pub const TIOCM_RNG: ::c_int = 0o0200;

pub const TIOCM_DSR: ::c_int = 0o0400;

pub const TIOCM_CD: ::c_int = TIOCM_CAR;

pub const TIOCM_RI: ::c_int = TIOCM_RNG;

pub const TIMER_ABSTIME: ::c_int = 1;

// sys/reboot.h

pub const RB_AUTOBOOT: ::c_int = 0;

pub const TCP_INFO: ::c_int = 9;

#[link(name = "util")]

extern "C" {

    pub fn setgrent();

    pub fn sem_destroy(sem: *mut sem_t) -> ::c_int;

    pub fn sem_init(sem: *mut sem_t, pshared: ::c_int, value: ::c_uint) -> ::c_int;

    pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int;

    pub fn accept4(

        s: ::c_int,

        addr: *mut ::sockaddr,

        addrlen: *mut ::socklen_t,

        flags: ::c_int,

    ) -> ::c_int;

    pub fn mincore(addr: *mut ::c_void, len: ::size_t, vec: *mut ::c_char) -> ::c_int;

    #[cfg_attr(target_os = "netbsd", link_name = "__clock_getres50")]

    pub fn clock_getres(clk_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;

    #[cfg_attr(target_os = "netbsd", link_name = "__clock_gettime50")]

    pub fn clock_gettime(clk_id: ::clockid_t, tp: *mut ::timespec) -> ::c_int;

    #[cfg_attr(target_os = "netbsd", link_name = "__clock_settime50")]

    pub fn clock_settime(clk_id: ::clockid_t, tp: *const ::timespec) -> ::c_int;

    pub fn __errno() -> *mut ::c_int;

    pub fn shm_open(name: *const ::c_char, oflag: ::c_int, mode: ::mode_t) -> ::c_int;

    pub fn memrchr(cx: *const ::c_void, c: ::c_int, n: ::size_t) -> *mut ::c_void;

    pub fn mkostemp(template: *mut ::c_char, flags: ::c_int) -> ::c_int;

    pub fn mkostemps(template: *mut ::c_char, suffixlen: ::c_int, flags: ::c_int) -> ::c_int;

    pub fn pwritev(fd: ::c_int, iov: *const ::iovec, iovcnt: ::c_int, offset: ::off_t)

        -> ::ssize_t;

    pub fn preadv(fd: ::c_int, iov: *const ::iovec, iovcnt: ::c_int, offset: ::off_t) -> ::ssize_t;

    pub fn futimens(fd: ::c_int, times: *const ::timespec) -> ::c_int;

    pub fn utimensat(

        dirfd: ::c_int,

        path: *const ::c_char,

        times: *const ::timespec,

        flag: ::c_int,

    ) -> ::c_int;

    pub fn fdatasync(fd: ::c_int) -> ::c_int;

    pub fn login_tty(fd: ::c_int) -> ::c_int;

    pub fn getpriority(which: ::c_int, who: ::id_t) -> ::c_int;

    pub fn setpriority(which: ::c_int, who: ::id_t, prio: ::c_int) -> ::c_int;

    pub fn mknodat(

        dirfd: ::c_int,

        pathname: *const ::c_char,

        mode: ::mode_t,

        dev: dev_t,

    ) -> ::c_int;

    pub fn mkfifoat(dirfd: ::c_int, pathname: *const ::c_char, mode: ::mode_t) -> ::c_int;

    pub fn sem_timedwait(sem: *mut sem_t, abstime: *const ::timespec) -> ::c_int;

    pub fn sem_getvalue(sem: *mut sem_t, sval: *mut ::c_int) -> ::c_int;

    pub fn pthread_condattr_setclock(

        attr: *mut pthread_condattr_t,

        clock_id: ::clockid_t,

    ) -> ::c_int;

    pub fn sethostname(name: *const ::c_char, len: ::size_t) -> ::c_int;

    pub fn pthread_mutex_timedlock(

        lock: *mut pthread_mutex_t,

        abstime: *const ::timespec,

    ) -> ::c_int;

    pub fn pthread_spin_init(lock: *mut pthread_spinlock_t, pshared: ::c_int) -> ::c_int;

    pub fn pthread_spin_destroy(lock: *mut pthread_spinlock_t) -> ::c_int;

    pub fn pthread_spin_lock(lock: *mut pthread_spinlock_t) -> ::c_int;

    pub fn pthread_spin_trylock(lock: *mut pthread_spinlock_t) -> ::c_int;

    pub fn pthread_spin_unlock(lock: *mut pthread_spinlock_t) -> ::c_int;

    pub fn pthread_setschedparam(

        native: ::pthread_t,

        policy: ::c_int,

        param: *const sched_param,

    ) -> ::c_int;

    pub fn pthread_getschedparam(

        native: ::pthread_t,

        policy: *mut ::c_int,

        param: *mut sched_param,

    ) -> ::c_int;

    pub fn pipe2(fds: *mut ::c_int, flags: ::c_int) -> ::c_int;

    pub fn getgrouplist(

        name: *const ::c_char,

        basegid: ::gid_t,

        groups: *mut ::gid_t,

        ngroups: *mut ::c_int,

    ) -> ::c_int;

    pub fn initgroups(name: *const ::c_char, basegid: ::gid_t) -> ::c_int;

    pub fn getdomainname(name: *mut ::c_char, len: ::size_t) -> ::c_int;

    pub fn setdomainname(name: *const ::c_char, len: ::size_t) -> ::c_int;

    pub fn uname(buf: *mut ::utsname) -> ::c_int;

    pub fn shmget(key: ::key_t, size: ::size_t, shmflg: ::c_int) -> ::c_int;

    pub fn shmat(shmid: ::c_int, shmaddr: *const ::c_void, shmflg: ::c_int) -> *mut ::c_void;

    pub fn shmdt(shmaddr: *const ::c_void) -> ::c_int;

    pub fn shmctl(shmid: ::c_int, cmd: ::c_int, buf: *mut ::shmid_ds) -> ::c_int;

    pub fn execvpe(

        file: *const ::c_char,

        argv: *const *const ::c_char,

        envp: *const *const ::c_char,

    ) -> ::c_int;

    pub fn waitid(

        idtype: idtype_t,

        id: ::id_t,

        infop: *mut ::siginfo_t,

        options: ::c_int,

    ) -> ::c_int;

    pub fn posix_spawn(

        pid: *mut ::pid_t,

        path: *const ::c_char,

        file_actions: *const ::posix_spawn_file_actions_t,

        attrp: *const ::posix_spawnattr_t,

        argv: *const *mut ::c_char,

        envp: *const *mut ::c_char,

    ) -> ::c_int;

    pub fn posix_spawnp(

        pid: *mut ::pid_t,

        file: *const ::c_char,

        file_actions: *const ::posix_spawn_file_actions_t,

        attrp: *const ::posix_spawnattr_t,

        argv: *const *mut ::c_char,

        envp: *const *mut ::c_char,

    ) -> ::c_int;

    pub fn posix_spawnattr_init(attr: *mut posix_spawnattr_t) -> ::c_int;

    pub fn posix_spawnattr_destroy(attr: *mut posix_spawnattr_t) -> ::c_int;

    pub fn posix_spawnattr_getsigdefault(

        attr: *const posix_spawnattr_t,

        default: *mut ::sigset_t,

    ) -> ::c_int;

    pub fn posix_spawnattr_setsigdefault(

        attr: *mut posix_spawnattr_t,

        default: *const ::sigset_t,

    ) -> ::c_int;

    pub fn posix_spawnattr_getsigmask(

        attr: *const posix_spawnattr_t,

        default: *mut ::sigset_t,

    ) -> ::c_int;

    pub fn posix_spawnattr_setsigmask(

        attr: *mut posix_spawnattr_t,

        default: *const ::sigset_t,

    ) -> ::c_int;

    pub fn posix_spawnattr_getflags(

        attr: *const posix_spawnattr_t,

        flags: *mut ::c_short,

    ) -> ::c_int;

    pub fn posix_spawnattr_setflags(attr: *mut posix_spawnattr_t, flags: ::c_short) -> ::c_int;

    pub fn posix_spawnattr_getpgroup(

        attr: *const posix_spawnattr_t,

        flags: *mut ::pid_t,

    ) -> ::c_int;

    pub fn posix_spawnattr_setpgroup(attr: *mut posix_spawnattr_t, flags: ::pid_t) -> ::c_int;

    pub fn posix_spawnattr_getschedpolicy(

        attr: *const posix_spawnattr_t,

        flags: *mut ::c_int,

    ) -> ::c_int;

    pub fn posix_spawnattr_setschedpolicy(attr: *mut posix_spawnattr_t, flags: ::c_int) -> ::c_int;

    pub fn posix_spawnattr_getschedparam(

        attr: *const posix_spawnattr_t,

        param: *mut ::sched_param,

    ) -> ::c_int;

    pub fn posix_spawnattr_setschedparam(

        attr: *mut posix_spawnattr_t,

        param: *const ::sched_param,

    ) -> ::c_int;

    pub fn posix_spawn_file_actions_init(actions: *mut posix_spawn_file_actions_t) -> ::c_int;

    pub fn posix_spawn_file_actions_destroy(actions: *mut posix_spawn_file_actions_t) -> ::c_int;

    pub fn posix_spawn_file_actions_addopen(

        actions: *mut posix_spawn_file_actions_t,

        fd: ::c_int,

        path: *const ::c_char,

        oflag: ::c_int,

        mode: ::mode_t,

    ) -> ::c_int;

    pub fn posix_spawn_file_actions_addclose(

        actions: *mut posix_spawn_file_actions_t,

        fd: ::c_int,

    ) -> ::c_int;

    pub fn posix_spawn_file_actions_adddup2(

        actions: *mut posix_spawn_file_actions_t,

        fd: ::c_int,

        newfd: ::c_int,

    ) -> ::c_int;

extern "C" {

    pub fn reallocarray(ptr: *mut ::c_void, nmemb: ::size_t, size: ::size_t) -> *mut ::c_void;

    pub fn gethostid() -> ::c_long;

    pub fn sethostid(hostid: ::c_long) -> ::c_int;

    pub fn ftok(path: *const ::c_char, id: ::c_int) -> ::key_t;

    pub fn dirname(path: *mut ::c_char) -> *mut ::c_char;

    pub fn basename(path: *mut ::c_char) -> *mut ::c_char;

    pub fn getentropy(buf: *mut ::c_void, buflen: ::size_t) -> ::c_int;

cfg_if! {

    if #[cfg(target_os = "netbsd")] {

        mod netbsd;

        pub use self::netbsd::*;

    } else if #[cfg(target_os = "openbsd")] {

        mod openbsd;

        pub use self::openbsd::*;

    } else {

        // Unknown target_os