Make Nix builds work

1 files changed, 347 insertions, 0 deletions

diff --git a/vendor/golang.org/x/sys/unix/syscall_dragonfly.go b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
new file mode 100644
index 0000000..97cb916
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/syscall_dragonfly.go
@@ -0,0 +1,347 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// DragonFly BSD system calls.
+// This file is compiled as ordinary Go code,
+// but it is also input to mksyscall,
+// which parses the //sys lines and generates system call stubs.
+// Note that sometimes we use a lowercase //sys name and wrap
+// it in our own nicer implementation, either here or in
+// syscall_bsd.go or syscall_unix.go.
+
+package unix
+
+import (
+        "sync"
+        "unsafe"
+)
+
+// See version list in https://github.com/DragonFlyBSD/DragonFlyBSD/blob/master/sys/sys/param.h
+var (
+        osreldateOnce sync.Once
+        osreldate     uint32
+)
+
+// First __DragonFly_version after September 2019 ABI changes
+// http://lists.dragonflybsd.org/pipermail/users/2019-September/358280.html
+const _dragonflyABIChangeVersion = 500705
+
+func supportsABI(ver uint32) bool {
+        osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") })
+        return osreldate >= ver
+}
+
+// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
+type SockaddrDatalink struct {
+        Len    uint8
+        Family uint8
+        Index  uint16
+        Type   uint8
+        Nlen   uint8
+        Alen   uint8
+        Slen   uint8
+        Data   [12]int8
+        Rcf    uint16
+        Route  [16]uint16
+        raw    RawSockaddrDatalink
+}
+
+func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
+        return nil, EAFNOSUPPORT
+}
+
+// Translate "kern.hostname" to []_C_int{0,1,2,3}.
+func nametomib(name string) (mib []_C_int, err error) {
+        const siz = unsafe.Sizeof(mib[0])
+
+        // NOTE(rsc): It seems strange to set the buffer to have
+        // size CTL_MAXNAME+2 but use only CTL_MAXNAME
+        // as the size. I don't know why the +2 is here, but the
+        // kernel uses +2 for its own implementation of this function.
+        // I am scared that if we don't include the +2 here, the kernel
+        // will silently write 2 words farther than we specify
+        // and we'll get memory corruption.
+        var buf [CTL_MAXNAME + 2]_C_int
+        n := uintptr(CTL_MAXNAME) * siz
+
+        p := (*byte)(unsafe.Pointer(&buf[0]))
+        bytes, err := ByteSliceFromString(name)
+        if err != nil {
+                return nil, err
+        }
+
+        // Magic sysctl: "setting" 0.3 to a string name
+        // lets you read back the array of integers form.
+        if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil {
+                return nil, err
+        }
+        return buf[0 : n/siz], nil
+}
+
+func direntIno(buf []byte) (uint64, bool) {
+        return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
+}
+
+func direntReclen(buf []byte) (uint64, bool) {
+        namlen, ok := direntNamlen(buf)
+        if !ok {
+                return 0, false
+        }
+        return (16 + namlen + 1 + 7) &^ 7, true
+}
+
+func direntNamlen(buf []byte) (uint64, bool) {
+        return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
+}
+
+//sysnb pipe() (r int, w int, err error)
+
+func Pipe(p []int) (err error) {
+        if len(p) != 2 {
+                return EINVAL
+        }
+        r, w, err := pipe()
+        if err == nil {
+                p[0], p[1] = r, w
+        }
+        return
+}
+
+//sysnb pipe2(p *[2]_C_int, flags int) (r int, w int, err error)
+
+func Pipe2(p []int, flags int) (err error) {
+        if len(p) != 2 {
+                return EINVAL
+        }
+        var pp [2]_C_int
+        // pipe2 on dragonfly takes an fds array as an argument, but still
+        // returns the file descriptors.
+        r, w, err := pipe2(&pp, flags)
+        if err == nil {
+                p[0], p[1] = r, w
+        }
+        return err
+}
+
+//sys   extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
+
+func pread(fd int, p []byte, offset int64) (n int, err error) {
+        return extpread(fd, p, 0, offset)
+}
+
+//sys   extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error)
+
+func pwrite(fd int, p []byte, offset int64) (n int, err error) {
+        return extpwrite(fd, p, 0, offset)
+}
+
+func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) {
+        var rsa RawSockaddrAny
+        var len _Socklen = SizeofSockaddrAny
+        nfd, err = accept4(fd, &rsa, &len, flags)
+        if err != nil {
+                return
+        }
+        if len > SizeofSockaddrAny {
+                panic("RawSockaddrAny too small")
+        }
+        sa, err = anyToSockaddr(fd, &rsa)
+        if err != nil {
+                Close(nfd)
+                nfd = 0
+        }
+        return
+}
+
+//sys   Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
+
+func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
+        var _p0 unsafe.Pointer
+        var bufsize uintptr
+        if len(buf) > 0 {
+                _p0 = unsafe.Pointer(&buf[0])
+                bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf))
+        }
+        r0, _, e1 := Syscall(SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
+        n = int(r0)
+        if e1 != 0 {
+                err = e1
+        }
+        return
+}
+
+//sys   ioctl(fd int, req uint, arg uintptr) (err error)
+//sys   ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL
+
+//sys   sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
+
+func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
+        err := sysctl(mib, old, oldlen, nil, 0)
+        if err != nil {
+                // Utsname members on Dragonfly are only 32 bytes and
+                // the syscall returns ENOMEM in case the actual value
+                // is longer.
+                if err == ENOMEM {
+                        err = nil
+                }
+        }
+        return err
+}
+
+func Uname(uname *Utsname) error {
+        mib := []_C_int{CTL_KERN, KERN_OSTYPE}
+        n := unsafe.Sizeof(uname.Sysname)
+        if err := sysctlUname(mib, &uname.Sysname[0], &n); err != nil {
+                return err
+        }
+        uname.Sysname[unsafe.Sizeof(uname.Sysname)-1] = 0
+
+        mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
+        n = unsafe.Sizeof(uname.Nodename)
+        if err := sysctlUname(mib, &uname.Nodename[0], &n); err != nil {
+                return err
+        }
+        uname.Nodename[unsafe.Sizeof(uname.Nodename)-1] = 0
+
+        mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
+        n = unsafe.Sizeof(uname.Release)
+        if err := sysctlUname(mib, &uname.Release[0], &n); err != nil {
+                return err
+        }
+        uname.Release[unsafe.Sizeof(uname.Release)-1] = 0
+
+        mib = []_C_int{CTL_KERN, KERN_VERSION}
+        n = unsafe.Sizeof(uname.Version)
+        if err := sysctlUname(mib, &uname.Version[0], &n); err != nil {
+                return err
+        }
+
+        // The version might have newlines or tabs in it, convert them to
+        // spaces.
+        for i, b := range uname.Version {
+                if b == '\n' || b == '\t' {
+                        if i == len(uname.Version)-1 {
+                                uname.Version[i] = 0
+                        } else {
+                                uname.Version[i] = ' '
+                        }
+                }
+        }
+
+        mib = []_C_int{CTL_HW, HW_MACHINE}
+        n = unsafe.Sizeof(uname.Machine)
+        if err := sysctlUname(mib, &uname.Machine[0], &n); err != nil {
+                return err
+        }
+        uname.Machine[unsafe.Sizeof(uname.Machine)-1] = 0
+
+        return nil
+}
+
+func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
+        if raceenabled {
+                raceReleaseMerge(unsafe.Pointer(&ioSync))
+        }
+        return sendfile(outfd, infd, offset, count)
+}
+
+/*
+ * Exposed directly
+ */
+//sys   Access(path string, mode uint32) (err error)
+//sys   Adjtime(delta *Timeval, olddelta *Timeval) (err error)
+//sys   Chdir(path string) (err error)
+//sys   Chflags(path string, flags int) (err error)
+//sys   Chmod(path string, mode uint32) (err error)
+//sys   Chown(path string, uid int, gid int) (err error)
+//sys   Chroot(path string) (err error)
+//sys   ClockGettime(clockid int32, time *Timespec) (err error)
+//sys   Close(fd int) (err error)
+//sys   Dup(fd int) (nfd int, err error)
+//sys   Dup2(from int, to int) (err error)
+//sys   Exit(code int)
+//sys   Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys   Fchdir(fd int) (err error)
+//sys   Fchflags(fd int, flags int) (err error)
+//sys   Fchmod(fd int, mode uint32) (err error)
+//sys   Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
+//sys   Fchown(fd int, uid int, gid int) (err error)
+//sys   Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
+//sys   Flock(fd int, how int) (err error)
+//sys   Fpathconf(fd int, name int) (val int, err error)
+//sys   Fstat(fd int, stat *Stat_t) (err error)
+//sys   Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
+//sys   Fstatfs(fd int, stat *Statfs_t) (err error)
+//sys   Fsync(fd int) (err error)
+//sys   Ftruncate(fd int, length int64) (err error)
+//sys   Getdents(fd int, buf []byte) (n int, err error)
+//sys   Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error)
+//sys   Getdtablesize() (size int)
+//sysnb Getegid() (egid int)
+//sysnb Geteuid() (uid int)
+//sysnb Getgid() (gid int)
+//sysnb Getpgid(pid int) (pgid int, err error)
+//sysnb Getpgrp() (pgrp int)
+//sysnb Getpid() (pid int)
+//sysnb Getppid() (ppid int)
+//sys   Getpriority(which int, who int) (prio int, err error)
+//sysnb Getrlimit(which int, lim *Rlimit) (err error)
+//sysnb Getrusage(who int, rusage *Rusage) (err error)
+//sysnb Getsid(pid int) (sid int, err error)
+//sysnb Gettimeofday(tv *Timeval) (err error)
+//sysnb Getuid() (uid int)
+//sys   Issetugid() (tainted bool)
+//sys   Kill(pid int, signum syscall.Signal) (err error)
+//sys   Kqueue() (fd int, err error)
+//sys   Lchown(path string, uid int, gid int) (err error)
+//sys   Link(path string, link string) (err error)
+//sys   Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
+//sys   Listen(s int, backlog int) (err error)
+//sys   Lstat(path string, stat *Stat_t) (err error)
+//sys   Mkdir(path string, mode uint32) (err error)
+//sys   Mkdirat(dirfd int, path string, mode uint32) (err error)
+//sys   Mkfifo(path string, mode uint32) (err error)
+//sys   Mknod(path string, mode uint32, dev int) (err error)
+//sys   Mknodat(fd int, path string, mode uint32, dev int) (err error)
+//sys   Nanosleep(time *Timespec, leftover *Timespec) (err error)
+//sys   Open(path string, mode int, perm uint32) (fd int, err error)
+//sys   Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
+//sys   Pathconf(path string, name int) (val int, err error)
+//sys   read(fd int, p []byte) (n int, err error)
+//sys   Readlink(path string, buf []byte) (n int, err error)
+//sys   Rename(from string, to string) (err error)
+//sys   Renameat(fromfd int, from string, tofd int, to string) (err error)
+//sys   Revoke(path string) (err error)
+//sys   Rmdir(path string) (err error)
+//sys   Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
+//sys   Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sysnb Setegid(egid int) (err error)
+//sysnb Seteuid(euid int) (err error)
+//sysnb Setgid(gid int) (err error)
+//sys   Setlogin(name string) (err error)
+//sysnb Setpgid(pid int, pgid int) (err error)
+//sys   Setpriority(which int, who int, prio int) (err error)
+//sysnb Setregid(rgid int, egid int) (err error)
+//sysnb Setreuid(ruid int, euid int) (err error)
+//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
+//sysnb Setresuid(ruid int, euid int, suid int) (err error)
+//sysnb Setsid() (pid int, err error)
+//sysnb Settimeofday(tp *Timeval) (err error)
+//sysnb Setuid(uid int) (err error)
+//sys   Stat(path string, stat *Stat_t) (err error)
+//sys   Statfs(path string, stat *Statfs_t) (err error)
+//sys   Symlink(path string, link string) (err error)
+//sys   Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
+//sys   Sync() (err error)
+//sys   Truncate(path string, length int64) (err error)
+//sys   Umask(newmask int) (oldmask int)
+//sys   Undelete(path string) (err error)
+//sys   Unlink(path string) (err error)
+//sys   Unlinkat(dirfd int, path string, flags int) (err error)
+//sys   Unmount(path string, flags int) (err error)
+//sys   write(fd int, p []byte) (n int, err error)
+//sys   mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
+//sys   munmap(addr uintptr, length uintptr) (err error)
+//sys   accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
+//sys   utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)