Fix #12135 and #12109 (#12137)

* Fix #12135 and fix #12109 - fix OpenBSD type defs

* Fix Mode definition as in #12132

2 files changed, 563 insertions, 0 deletions

diff --git a/lib/posix/posix.nim b/lib/posix/posix.nim
index 27d6d08e9..ebd5eb54f 100644
--- a/lib/posix/posix.nim
+++ b/lib/posix/posix.nim
@@ -97,6 +97,8 @@ const StatHasNanoseconds* = defined(linux) or defined(freebsd) or
 
 when (defined(linux) and not defined(android)) and defined(amd64):
   include posix_linux_amd64
+elif defined(openbsd) and defined(amd64):
+  include posix_openbsd_amd64
 elif (defined(macos) or defined(macosx) or defined(bsd)) and defined(cpu64):
   include posix_macos_amd64
 elif defined(nintendoswitch):
diff --git a/lib/posix/posix_openbsd_amd64.nim b/lib/posix/posix_openbsd_amd64.nim
new file mode 100644
index 000000000..d9ac84a1d
--- /dev/null
+++ b/lib/posix/posix_openbsd_amd64.nim
@@ -0,0 +1,561 @@
+#
+#
+#            Nim's Runtime Library
+#        (c) Copyright 2012 Andreas Rumpf
+#
+#    See the file "copying.txt", included in this
+#    distribution, for details about the copyright.
+#
+
+{.deadCodeElim: on.}  # dce option deprecated
+
+when defined(nimHasStyleChecks):
+  {.push styleChecks: off.}
+
+const
+  hasSpawnH = true # should exist for every Posix system nowadays
+  hasAioH = false
+
+type
+  DIR* {.importc: "DIR", header: "<dirent.h>",
+          incompleteStruct.} = object
+    ## A type representing a directory stream.
+
+type
+  SocketHandle* = distinct cint # The type used to represent socket descriptors
+
+type
+  Time* {.importc: "time_t", header: "<time.h>".} = distinct clonglong
+
+  Timespec* {.importc: "struct timespec",
+               header: "<time.h>", final, pure.} = object ## struct timespec
+    tv_sec*: Time  ## Seconds.
+    tv_nsec*: int  ## Nanoseconds.
+
+  Dirent* {.importc: "struct dirent",
+             header: "<dirent.h>", final, pure.} = object ## dirent_t struct
+    when defined(haiku):
+      d_dev*: Dev ## Device (not POSIX)
+      d_pdev*: Dev ## Parent device (only for queries) (not POSIX)
+    d_ino*: Ino  ## File serial number.
+    when defined(dragonfly):
+      # DragonflyBSD doesn't have `d_reclen` field.
+      d_type*: uint8
+    elif defined(linux) or defined(macosx) or defined(freebsd) or
+         defined(netbsd) or defined(openbsd) or defined(genode):
+      d_reclen*: cshort ## Length of this record. (not POSIX)
+      d_type*: int8 ## Type of file; not supported by all filesystem types.
+                    ## (not POSIX)
+      when defined(linux) or defined(openbsd):
+        d_off*: Off  ## Not an offset. Value that ``telldir()`` would return.
+    elif defined(haiku):
+      d_pino*: Ino ## Parent inode (only for queries) (not POSIX)
+      d_reclen*: cushort ## Length of this record. (not POSIX)
+
+    d_name*: array[0..255, char] ## Name of entry.
+
+  Tflock* {.importc: "struct flock", final, pure,
+            header: "<fcntl.h>".} = object ## flock type
+    l_type*: cshort   ## Type of lock; F_RDLCK, F_WRLCK, F_UNLCK.
+    l_whence*: cshort ## Flag for starting offset.
+    l_start*: Off     ## Relative offset in bytes.
+    l_len*: Off       ## Size; if 0 then until EOF.
+    l_pid*: Pid      ## Process ID of the process holding the lock;
+                      ## returned with F_GETLK.
+
+  FTW* {.importc: "struct FTW", header: "<ftw.h>", final, pure.} = object
+    base*: cint
+    level*: cint
+
+  Glob* {.importc: "glob_t", header: "<glob.h>",
+           final, pure.} = object ## glob_t
+    gl_pathc*: int          ## Count of paths matched by pattern.
+    gl_pathv*: cstringArray ## Pointer to a list of matched pathnames.
+    gl_offs*: int           ## Slots to reserve at the beginning of gl_pathv.
+
+  Group* {.importc: "struct group", header: "<grp.h>",
+            final, pure.} = object ## struct group
+    gr_name*: cstring     ## The name of the group.
+    gr_gid*: Gid         ## Numerical group ID.
+    gr_mem*: cstringArray ## Pointer to a null-terminated array of character
+                          ## pointers to member names.
+
+  Iconv* {.importc: "iconv_t", header: "<iconv.h>", final, pure.} =
+    object ## Identifies the conversion from one codeset to another.
+
+  Lconv* {.importc: "struct lconv", header: "<locale.h>", final,
+            pure.} = object
+    currency_symbol*: cstring
+    decimal_point*: cstring
+    frac_digits*: char
+    grouping*: cstring
+    int_curr_symbol*: cstring
+    int_frac_digits*: char
+    int_n_cs_precedes*: char
+    int_n_sep_by_space*: char
+    int_n_sign_posn*: char
+    int_p_cs_precedes*: char
+    int_p_sep_by_space*: char
+    int_p_sign_posn*: char
+    mon_decimal_point*: cstring
+    mon_grouping*: cstring
+    mon_thousands_sep*: cstring
+    negative_sign*: cstring
+    n_cs_precedes*: char
+    n_sep_by_space*: char
+    n_sign_posn*: char
+    positive_sign*: cstring
+    p_cs_precedes*: char
+    p_sep_by_space*: char
+    p_sign_posn*: char
+    thousands_sep*: cstring
+
+  Mqd* {.importc: "mqd_t", header: "<mqueue.h>", final, pure.} = object
+  MqAttr* {.importc: "struct mq_attr",
+             header: "<mqueue.h>",
+             final, pure.} = object ## message queue attribute
+    mq_flags*: int   ## Message queue flags.
+    mq_maxmsg*: int  ## Maximum number of messages.
+    mq_msgsize*: int ## Maximum message size.
+    mq_curmsgs*: int ## Number of messages currently queued.
+
+  Passwd* {.importc: "struct passwd", header: "<pwd.h>",
+             final, pure.} = object ## struct passwd
+    pw_name*: cstring   ## User's login name.
+    pw_uid*: Uid        ## Numerical user ID.
+    pw_gid*: Gid        ## Numerical group ID.
+    pw_dir*: cstring    ## Initial working directory.
+    pw_shell*: cstring  ## Program to use as shell.
+
+  Blkcnt* {.importc: "blkcnt_t", header: "<sys/types.h>".} = int
+    ## used for file block counts
+  Blksize* {.importc: "blksize_t", header: "<sys/types.h>".} = int32
+    ## used for block sizes
+  Clock* {.importc: "clock_t", header: "<sys/types.h>".} = int
+  ClockId* {.importc: "clockid_t", header: "<sys/types.h>".} = int
+  Dev* {.importc: "dev_t", header: "<sys/types.h>".} = int32
+  Fsblkcnt* {.importc: "fsblkcnt_t", header: "<sys/types.h>".} = int
+  Fsfilcnt* {.importc: "fsfilcnt_t", header: "<sys/types.h>".} = int
+  Gid* {.importc: "gid_t", header: "<sys/types.h>".} = int32
+  Id* {.importc: "id_t", header: "<sys/types.h>".} = int
+  Ino* {.importc: "ino_t", header: "<sys/types.h>".} = int
+  Key* {.importc: "key_t", header: "<sys/types.h>".} = int
+  Mode* {.importc: "mode_t", header: "<sys/types.h>".} = uint32
+  Nlink* {.importc: "nlink_t", header: "<sys/types.h>".} = int16
+  Off* {.importc: "off_t", header: "<sys/types.h>".} = int64
+  Pid* {.importc: "pid_t", header: "<sys/types.h>".} = int32
+  Pthread_attr* {.importc: "pthread_attr_t", header: "<pthread.h>".} = int
+  Pthread_barrier* {.importc: "pthread_barrier_t",
+                      header: "<pthread.h>".} = int
+  Pthread_barrierattr* {.importc: "pthread_barrierattr_t",
+                          header: "<pthread.h>".} = int
+  Pthread_cond* {.importc: "pthread_cond_t", header: "<pthread.h>".} = int
+  Pthread_condattr* {.importc: "pthread_condattr_t",
+                       header: "<pthread.h>".} = int
+  Pthread_key* {.importc: "pthread_key_t", header: "<pthread.h>".} = int
+  Pthread_mutex* {.importc: "pthread_mutex_t", header: "<pthread.h>".} = int
+  Pthread_mutexattr* {.importc: "pthread_mutexattr_t",
+                        header: "<pthread.h>".} = int
+  Pthread_once* {.importc: "pthread_once_t", header: "<pthread.h>".} = int
+  Pthread_rwlock* {.importc: "pthread_rwlock_t",
+                     header: "<pthread.h>".} = int
+  Pthread_rwlockattr* {.importc: "pthread_rwlockattr_t",
+                         header: "<pthread.h>".} = int
+  Pthread_spinlock* {.importc: "pthread_spinlock_t",
+                       header: "<pthread.h>".} = int
+  Pthread* {.importc: "pthread_t", header: "<pthread.h>".} = int
+  Suseconds* {.importc: "suseconds_t", header: "<sys/types.h>".} = int32
+  #Ttime* {.importc: "time_t", header: "<sys/types.h>".} = int
+  Timer* {.importc: "timer_t", header: "<sys/types.h>".} = int
+  Trace_attr* {.importc: "trace_attr_t", header: "<sys/types.h>".} = int
+  Trace_event_id* {.importc: "trace_event_id_t",
+                     header: "<sys/types.h>".} = int
+  Trace_event_set* {.importc: "trace_event_set_t",
+                      header: "<sys/types.h>".} = int
+  Trace_id* {.importc: "trace_id_t", header: "<sys/types.h>".} = int
+  Uid* {.importc: "uid_t", header: "<sys/types.h>".} = int32
+  Useconds* {.importc: "useconds_t", header: "<sys/types.h>".} = int
+
+  Utsname* {.importc: "struct utsname",
+              header: "<sys/utsname.h>",
+              final, pure.} = object ## struct utsname
+    sysname*,      ## Name of this implementation of the operating system.
+      nodename*,   ## Name of this node within the communications
+                   ## network to which this node is attached, if any.
+      release*,    ## Current release level of this implementation.
+      version*,    ## Current version level of this release.
+      machine*: array[0..255, char] ## Name of the hardware type on which the
+                                     ## system is running.
+
+  Sem* {.importc: "sem_t", header: "<semaphore.h>", final, pure.} = object
+  Ipc_perm* {.importc: "struct ipc_perm",
+               header: "<sys/ipc.h>", final, pure.} = object ## struct ipc_perm
+    uid*: Uid    ## Owner's user ID.
+    gid*: Gid    ## Owner's group ID.
+    cuid*: Uid   ## Creator's user ID.
+    cgid*: Gid   ## Creator's group ID.
+    mode*: Mode  ## Read/write permission.
+
+  Stat* {.importc: "struct stat",
+           header: "<sys/stat.h>", final, pure.} = object ## struct stat
+    st_dev*: Dev          ## Device ID of device containing file.
+    st_ino*: Ino          ## File serial number.
+    st_mode*: Mode        ## Mode of file (see below).
+    st_nlink*: Nlink      ## Number of hard links to the file.
+    st_uid*: Uid          ## User ID of file.
+    st_gid*: Gid          ## Group ID of file.
+    st_rdev*: Dev         ## Device ID (if file is character or block special).
+    st_size*: Off         ## For regular files, the file size in bytes.
+                          ## For symbolic links, the length in bytes of the
+                          ## pathname contained in the symbolic link.
+                          ## For a shared memory object, the length in bytes.
+                          ## For a typed memory object, the length in bytes.
+                          ## For other file types, the use of this field is
+                          ## unspecified.
+    when StatHasNanoseconds:
+      st_atim*: Timespec  ## Time of last access.
+      st_mtim*: Timespec  ## Time of last data modification.
+      st_ctim*: Timespec  ## Time of last status change.
+    else:
+      st_atime*: Time     ## Time of last access.
+      st_mtime*: Time     ## Time of last data modification.
+      st_ctime*: Time     ## Time of last status change.
+    st_blksize*: Blksize  ## A file system-specific preferred I/O block size
+                          ## for this object. In some file system types, this
+                          ## may vary from file to file.
+    st_blocks*: Blkcnt    ## Number of blocks allocated for this object.
+
+
+  Statvfs* {.importc: "struct statvfs", header: "<sys/statvfs.h>",
+              final, pure.} = object ## struct statvfs
+    f_bsize*: int        ## File system block size.
+    f_frsize*: int       ## Fundamental file system block size.
+    f_blocks*: Fsblkcnt  ## Total number of blocks on file system
+                         ## in units of f_frsize.
+    f_bfree*: Fsblkcnt   ## Total number of free blocks.
+    f_bavail*: Fsblkcnt  ## Number of free blocks available to
+                         ## non-privileged process.
+    f_files*: Fsfilcnt   ## Total number of file serial numbers.
+    f_ffree*: Fsfilcnt   ## Total number of free file serial numbers.
+    f_favail*: Fsfilcnt  ## Number of file serial numbers available to
+                         ## non-privileged process.
+    f_fsid*: int         ## File system ID.
+    f_flag*: int         ## Bit mask of f_flag values.
+    f_namemax*: int      ## Maximum filename length.
+
+  Posix_typed_mem_info* {.importc: "struct posix_typed_mem_info",
+                           header: "<sys/mman.h>", final, pure.} = object
+    posix_tmi_length*: int
+
+  Tm* {.importc: "struct tm", header: "<time.h>",
+         final, pure.} = object ## struct tm
+    tm_sec*: cint   ## Seconds [0,60].
+    tm_min*: cint   ## Minutes [0,59].
+    tm_hour*: cint  ## Hour [0,23].
+    tm_mday*: cint  ## Day of month [1,31].
+    tm_mon*: cint   ## Month of year [0,11].
+    tm_year*: cint  ## Years since 1900.
+    tm_wday*: cint  ## Day of week [0,6] (Sunday =0).
+    tm_yday*: cint  ## Day of year [0,365].
+    tm_isdst*: cint ## Daylight Savings flag.
+  Itimerspec* {.importc: "struct itimerspec", header: "<time.h>",
+                 final, pure.} = object ## struct itimerspec
+    it_interval*: Timespec  ## Timer period.
+    it_value*: Timespec     ## Timer expiration.
+
+  Sig_atomic* {.importc: "sig_atomic_t", header: "<signal.h>".} = cint
+    ## Possibly volatile-qualified integer type of an object that can be
+    ## accessed as an atomic entity, even in the presence of asynchronous
+    ## interrupts.
+  Sigset* {.importc: "sigset_t", header: "<signal.h>", final, pure.} = object
+
+  SigEvent* {.importc: "struct sigevent",
+               header: "<signal.h>", final, pure.} = object ## struct sigevent
+    sigev_notify*: cint           ## Notification type.
+    sigev_signo*: cint            ## Signal number.
+    sigev_value*: SigVal          ## Signal value.
+    sigev_notify_function*: proc (x: SigVal) {.noconv.} ## Notification func.
+    sigev_notify_attributes*: ptr Pthread_attr ## Notification attributes.
+
+  SigVal* {.importc: "union sigval",
+             header: "<signal.h>", final, pure.} = object ## struct sigval
+    sival_ptr*: pointer ## pointer signal value;
+                        ## integer signal value not defined!
+  Sigaction* {.importc: "struct sigaction",
+                header: "<signal.h>", final, pure.} = object ## struct sigaction
+    sa_handler*: proc (x: cint) {.noconv.}  ## Pointer to a signal-catching
+                                            ## function or one of the macros
+                                            ## SIG_IGN or SIG_DFL.
+    sa_mask*: Sigset ## Set of signals to be blocked during execution of
+                      ## the signal handling function.
+    sa_flags*: cint   ## Special flags.
+    sa_sigaction*: proc (x: cint, y: ptr SigInfo, z: pointer) {.noconv.}
+
+  Stack* {.importc: "stack_t",
+            header: "<signal.h>", final, pure.} = object ## stack_t
+    ss_sp*: pointer  ## Stack base or pointer.
+    ss_size*: int    ## Stack size.
+    ss_flags*: cint  ## Flags.
+
+  SigStack* {.importc: "struct sigstack",
+               header: "<signal.h>", final, pure.} = object ## struct sigstack
+    ss_onstack*: cint ## Non-zero when signal stack is in use.
+    ss_sp*: pointer   ## Signal stack pointer.
+
+  SigInfo* {.importc: "siginfo_t",
+              header: "<signal.h>", final, pure.} = object ## siginfo_t
+    si_signo*: cint    ## Signal number.
+    si_code*: cint     ## Signal code.
+    si_errno*: cint    ## If non-zero, an errno value associated with
+                       ## this signal, as defined in <errno.h>.
+    si_pid*: Pid       ## Sending process ID.
+    si_uid*: Uid       ## Real user ID of sending process.
+    si_addr*: pointer  ## Address of faulting instruction.
+    si_status*: cint   ## Exit value or signal.
+    si_band*: int      ## Band event for SIGPOLL.
+    si_value*: SigVal  ## Signal value.
+
+  Nl_item* {.importc: "nl_item", header: "<nl_types.h>".} = cint
+  Nl_catd* {.importc: "nl_catd", header: "<nl_types.h>".} = cint
+
+  Sched_param* {.importc: "struct sched_param",
+                  header: "<sched.h>",
+                  final, pure.} = object ## struct sched_param
+    sched_priority*: cint
+    sched_ss_low_priority*: cint     ## Low scheduling priority for
+                                     ## sporadic server.
+    sched_ss_repl_period*: Timespec  ## Replenishment period for
+                                     ## sporadic server.
+    sched_ss_init_budget*: Timespec  ## Initial budget for sporadic server.
+    sched_ss_max_repl*: cint         ## Maximum pending replenishments for
+                                     ## sporadic server.
+
+  Timeval* {.importc: "struct timeval", header: "<sys/select.h>",
+             final, pure.} = object ## struct timeval
+    tv_sec*: Time ## Seconds.
+    tv_usec*: Suseconds ## Microseconds.
+  TFdSet* {.importc: "fd_set", header: "<sys/select.h>",
+           final, pure.} = object
+  # the following aren't actually defined, but they're here to keep things happy for now
+  Mcontext* {.importc: "mcontext_t", header: "<ucontext.h>",
+               final, pure.} = object
+  Ucontext* {.importc: "ucontext_t", header: "<ucontext.h>",
+               final, pure.} = object ## ucontext_t
+    uc_link*: ptr Ucontext  ## Pointer to the context that is resumed
+                            ## when this context returns.
+    uc_sigmask*: Sigset     ## The set of signals that are blocked when this
+                            ## context is active.
+    uc_stack*: Stack        ## The stack used by this context.
+    uc_mcontext*: Mcontext  ## A machine-specific representation of the saved
+                            ## context.
+
+when hasAioH:
+  type
+    Taiocb* {.importc: "struct aiocb", header: "<aio.h>",
+              final, pure.} = object ## struct aiocb
+      aio_fildes*: cint         ## File descriptor.
+      aio_offset*: Off          ## File offset.
+      aio_buf*: pointer         ## Location of buffer.
+      aio_nbytes*: int          ## Length of transfer.
+      aio_reqprio*: cint        ## Request priority offset.
+      aio_sigevent*: SigEvent   ## Signal number and value.
+      aio_lio_opcode: cint      ## Operation to be performed.
+
+when hasSpawnH:
+  type
+    Tposix_spawnattr* {.importc: "posix_spawnattr_t",
+                        header: "<spawn.h>", final, pure.} = object
+    Tposix_spawn_file_actions* {.importc: "posix_spawn_file_actions_t",
+                                 header: "<spawn.h>", final, pure.} = object
+
+# according to http://pubs.opengroup.org/onlinepubs/009604499/basedefs/sys/un.h.html
+# this is >=92
+const Sockaddr_un_path_length* = 92
+
+type
+  SockLen* {.importc: "socklen_t", header: "<sys/socket.h>".} = cuint
+  TSa_Family* {.importc: "sa_family_t", header: "<sys/socket.h>".} = uint8
+
+  SockAddr* {.importc: "struct sockaddr", header: "<sys/socket.h>",
+              pure, final.} = object ## struct sockaddr
+    sa_family*: TSa_Family         ## Address family.
+    sa_data*: array[0..255, char] ## Socket address (variable-length data).
+
+  Sockaddr_un* {.importc: "struct sockaddr_un", header: "<sys/un.h>",
+              pure, final.} = object ## struct sockaddr_un
+    sun_family*: TSa_Family         ## Address family.
+    sun_path*: array[0..Sockaddr_un_path_length-1, char] ## Socket path
+
+  Sockaddr_storage* {.importc: "struct sockaddr_storage",
+                       header: "<sys/socket.h>",
+                       pure, final.} = object ## struct sockaddr_storage
+    ss_family*: TSa_Family ## Address family.
+
+  Tif_nameindex* {.importc: "struct if_nameindex", final,
+                   pure, header: "<net/if.h>".} = object ## struct if_nameindex
+    if_index*: cint   ## Numeric index of the interface.
+    if_name*: cstring ## Null-terminated name of the interface.
+
+
+  IOVec* {.importc: "struct iovec", pure, final,
+            header: "<sys/uio.h>".} = object ## struct iovec
+    iov_base*: pointer ## Base address of a memory region for input or output.
+    iov_len*: int    ## The size of the memory pointed to by iov_base.
+
+  Tmsghdr* {.importc: "struct msghdr", pure, final,
+             header: "<sys/socket.h>".} = object  ## struct msghdr
+    msg_name*: pointer  ## Optional address.
+    msg_namelen*: SockLen  ## Size of address.
+    msg_iov*: ptr IOVec    ## Scatter/gather array.
+    msg_iovlen*: cint   ## Members in msg_iov.
+    msg_control*: pointer  ## Ancillary data; see below.
+    msg_controllen*: SockLen ## Ancillary data buffer len.
+    msg_flags*: cint ## Flags on received message.
+
+
+  Tcmsghdr* {.importc: "struct cmsghdr", pure, final,
+              header: "<sys/socket.h>".} = object ## struct cmsghdr
+    cmsg_len*: SockLen ## Data byte count, including the cmsghdr.
+    cmsg_level*: cint   ## Originating protocol.
+    cmsg_type*: cint    ## Protocol-specific type.
+
+  TLinger* {.importc: "struct linger", pure, final,
+             header: "<sys/socket.h>".} = object ## struct linger
+    l_onoff*: cint  ## Indicates whether linger option is enabled.
+    l_linger*: cint ## Linger time, in seconds.
+
+  InPort* = uint16
+  InAddrScalar* = uint32
+
+  InAddrT* {.importc: "in_addr_t", pure, final,
+             header: "<netinet/in.h>".} = uint32
+
+  InAddr* {.importc: "struct in_addr", pure, final,
+             header: "<netinet/in.h>".} = object ## struct in_addr
+    s_addr*: InAddrScalar
+
+  Sockaddr_in* {.importc: "struct sockaddr_in", pure, final,
+                  header: "<netinet/in.h>".} = object ## struct sockaddr_in
+    sin_family*: TSa_Family ## AF_INET.
+    sin_port*: InPort      ## Port number.
+    sin_addr*: InAddr      ## IP address.
+
+  In6Addr* {.importc: "struct in6_addr", pure, final,
+              header: "<netinet/in.h>".} = object ## struct in6_addr
+    s6_addr*: array[0..15, char]
+
+  Sockaddr_in6* {.importc: "struct sockaddr_in6", pure, final,
+                   header: "<netinet/in.h>".} = object ## struct sockaddr_in6
+    sin6_family*: TSa_Family ## AF_INET6.
+    sin6_port*: InPort      ## Port number.
+    sin6_flowinfo*: int32    ## IPv6 traffic class and flow information.
+    sin6_addr*: In6Addr     ## IPv6 address.
+    sin6_scope_id*: int32    ## Set of interfaces for a scope.
+
+  Tipv6_mreq* {.importc: "struct ipv6_mreq", pure, final,
+                header: "<netinet/in.h>".} = object ## struct ipv6_mreq
+    ipv6mr_multiaddr*: In6Addr ## IPv6 multicast address.
+    ipv6mr_interface*: cint     ## Interface index.
+
+  Hostent* {.importc: "struct hostent", pure, final,
+              header: "<netdb.h>".} = object ## struct hostent
+    h_name*: cstring           ## Official name of the host.
+    h_aliases*: cstringArray   ## A pointer to an array of pointers to
+                               ## alternative host names, terminated by a
+                               ## null pointer.
+    h_addrtype*: cint          ## Address type.
+    h_length*: cint            ## The length, in bytes, of the address.
+    h_addr_list*: cstringArray ## A pointer to an array of pointers to network
+                               ## addresses (in network byte order) for the
+                               ## host, terminated by a null pointer.
+
+  Tnetent* {.importc: "struct netent", pure, final,
+              header: "<netdb.h>".} = object ## struct netent
+    n_name*: cstring         ## Official, fully-qualified (including the
+                             ## domain) name of the host.
+    n_aliases*: cstringArray ## A pointer to an array of pointers to
+                             ## alternative network names, terminated by a
+                             ## null pointer.
+    n_addrtype*: cint        ## The address type of the network.
+    n_net*: int32            ## The network number, in host byte order.
+
+  Protoent* {.importc: "struct protoent", pure, final,
+              header: "<netdb.h>".} = object ## struct protoent
+    p_name*: cstring         ## Official name of the protocol.
+    p_aliases*: cstringArray ## A pointer to an array of pointers to
+                             ## alternative protocol names, terminated by
+                             ## a null pointer.
+    p_proto*: cint           ## The protocol number.
+
+  Servent* {.importc: "struct servent", pure, final,
+             header: "<netdb.h>".} = object ## struct servent
+    s_name*: cstring         ## Official name of the service.
+    s_aliases*: cstringArray ## A pointer to an array of pointers to
+                             ## alternative service names, terminated by
+                             ## a null pointer.
+    s_port*: cint            ## The port number at which the service
+                             ## resides, in network byte order.
+    s_proto*: cstring        ## The name of the protocol to use when
+                             ## contacting the service.
+
+  AddrInfo* {.importc: "struct addrinfo", pure, final,
+              header: "<netdb.h>".} = object ## struct addrinfo
+    ai_flags*: cint         ## Input flags.
+    ai_family*: cint        ## Address family of socket.
+    ai_socktype*: cint      ## Socket type.
+    ai_protocol*: cint      ## Protocol of socket.
+    ai_addrlen*: SockLen   ## Length of socket address.
+    ai_addr*: ptr SockAddr ## Socket address of socket.
+    ai_canonname*: cstring  ## Canonical name of service location.
+    ai_next*: ptr AddrInfo ## Pointer to next in list.
+
+  TPollfd* {.importc: "struct pollfd", pure, final,
+             header: "<poll.h>".} = object ## struct pollfd
+    fd*: cint        ## The following descriptor being polled.
+    events*: cshort  ## The input event flags (see below).
+    revents*: cshort ## The output event flags (see below).
+
+  Tnfds* {.importc: "nfds_t", header: "<poll.h>".} = cint
+
+var
+  errno* {.importc, header: "<errno.h>".}: cint ## error variable
+  h_errno* {.importc, header: "<netdb.h>".}: cint
+  daylight* {.importc, header: "<time.h>".}: cint
+  timezone* {.importc, header: "<time.h>".}: int
+
+# Regenerate using detect.nim!
+include posix_other_consts
+
+var
+  MAP_POPULATE*: cint = 0
+
+when defined(nimdoc):
+  const SO_REUSEPORT* = cint(0x0200)
+else:
+  var SO_REUSEPORT* {.importc, header: "<sys/socket.h>".}: cint
+
+var MSG_NOSIGNAL* {.importc, header: "<sys/socket.h>".}: cint
+
+when hasSpawnH:
+    # openbsd lacks this, so we define the constant to be 0 to not affect
+    # OR'ing of flags:
+    const POSIX_SPAWN_USEVFORK* = cint(0)
+
+# <sys/wait.h>
+proc WEXITSTATUS*(s: cint): cint {.importc, header: "<sys/wait.h>".}
+  ## Exit code, iff WIFEXITED(s)
+proc WTERMSIG*(s: cint): cint {.importc, header: "<sys/wait.h>".}
+  ## Termination signal, iff WIFSIGNALED(s)
+proc WSTOPSIG*(s: cint): cint {.importc, header: "<sys/wait.h>".}
+  ## Stop signal, iff WIFSTOPPED(s)
+proc WIFEXITED*(s: cint): bool {.importc, header: "<sys/wait.h>".}
+  ## True if child exited normally.
+proc WIFSIGNALED*(s: cint): bool {.importc, header: "<sys/wait.h>".}
+  ## True if child exited due to uncaught signal.
+proc WIFSTOPPED*(s: cint): bool {.importc, header: "<sys/wait.h>".}
+  ## True if child is currently stopped.
+proc WIFCONTINUED*(s: cint): bool {.importc, header: "<sys/wait.h>".}
+  ## True if child has been continued.
+
+when defined(nimHasStyleChecks):
+  {.pop.}