mirror of
https://github.com/cheat/cheat.git
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372 lines
12 KiB
Go
372 lines
12 KiB
Go
// Copyright 2009,2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// NetBSD system calls.
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// This file is compiled as ordinary Go code,
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// but it is also input to mksyscall,
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// which parses the //sys lines and generates system call stubs.
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// Note that sometimes we use a lowercase //sys name and wrap
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// it in our own nicer implementation, either here or in
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// syscall_bsd.go or syscall_unix.go.
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package unix
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import (
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"syscall"
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"unsafe"
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)
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// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
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type SockaddrDatalink struct {
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Len uint8
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Family uint8
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Index uint16
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Type uint8
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Nlen uint8
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Alen uint8
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Slen uint8
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Data [12]int8
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raw RawSockaddrDatalink
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}
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func anyToSockaddrGOOS(fd int, rsa *RawSockaddrAny) (Sockaddr, error) {
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return nil, EAFNOSUPPORT
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}
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func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
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func sysctlNodes(mib []_C_int) (nodes []Sysctlnode, err error) {
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var olen uintptr
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// Get a list of all sysctl nodes below the given MIB by performing
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// a sysctl for the given MIB with CTL_QUERY appended.
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mib = append(mib, CTL_QUERY)
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qnode := Sysctlnode{Flags: SYSCTL_VERS_1}
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qp := (*byte)(unsafe.Pointer(&qnode))
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sz := unsafe.Sizeof(qnode)
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if err = sysctl(mib, nil, &olen, qp, sz); err != nil {
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return nil, err
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}
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// Now that we know the size, get the actual nodes.
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nodes = make([]Sysctlnode, olen/sz)
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np := (*byte)(unsafe.Pointer(&nodes[0]))
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if err = sysctl(mib, np, &olen, qp, sz); err != nil {
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return nil, err
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}
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return nodes, nil
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}
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func nametomib(name string) (mib []_C_int, err error) {
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// Split name into components.
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var parts []string
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last := 0
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for i := 0; i < len(name); i++ {
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if name[i] == '.' {
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parts = append(parts, name[last:i])
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last = i + 1
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}
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}
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parts = append(parts, name[last:])
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// Discover the nodes and construct the MIB OID.
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for partno, part := range parts {
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nodes, err := sysctlNodes(mib)
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if err != nil {
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return nil, err
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}
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for _, node := range nodes {
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n := make([]byte, 0)
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for i := range node.Name {
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if node.Name[i] != 0 {
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n = append(n, byte(node.Name[i]))
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}
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}
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if string(n) == part {
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mib = append(mib, _C_int(node.Num))
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break
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}
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}
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if len(mib) != partno+1 {
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return nil, EINVAL
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}
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}
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return mib, nil
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}
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func direntIno(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Fileno), unsafe.Sizeof(Dirent{}.Fileno))
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}
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func direntReclen(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
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}
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func direntNamlen(buf []byte) (uint64, bool) {
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return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen))
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}
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func SysctlUvmexp(name string) (*Uvmexp, error) {
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mib, err := sysctlmib(name)
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if err != nil {
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return nil, err
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}
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n := uintptr(SizeofUvmexp)
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var u Uvmexp
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if err := sysctl(mib, (*byte)(unsafe.Pointer(&u)), &n, nil, 0); err != nil {
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return nil, err
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}
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return &u, nil
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}
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func Pipe(p []int) (err error) {
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return Pipe2(p, 0)
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}
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//sysnb pipe2(p *[2]_C_int, flags int) (err error)
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func Pipe2(p []int, flags int) error {
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if len(p) != 2 {
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return EINVAL
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}
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var pp [2]_C_int
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err := pipe2(&pp, flags)
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if err == nil {
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p[0] = int(pp[0])
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p[1] = int(pp[1])
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}
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return err
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}
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//sys Getdents(fd int, buf []byte) (n int, err error)
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func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) {
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n, err = Getdents(fd, buf)
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if err != nil || basep == nil {
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return
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}
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var off int64
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off, err = Seek(fd, 0, 1 /* SEEK_CUR */)
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if err != nil {
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*basep = ^uintptr(0)
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return
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}
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*basep = uintptr(off)
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if unsafe.Sizeof(*basep) == 8 {
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return
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}
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if off>>32 != 0 {
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// We can't stuff the offset back into a uintptr, so any
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// future calls would be suspect. Generate an error.
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// EIO is allowed by getdirentries.
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err = EIO
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}
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return
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}
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//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
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// TODO
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func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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return -1, ENOSYS
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}
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//sys ioctl(fd int, req uint, arg uintptr) (err error)
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//sys ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL
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//sys sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS___SYSCTL
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func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) {
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var value Ptmget
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err := ioctlPtr(fd, req, unsafe.Pointer(&value))
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return &value, err
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}
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func Uname(uname *Utsname) error {
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mib := []_C_int{CTL_KERN, KERN_OSTYPE}
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n := unsafe.Sizeof(uname.Sysname)
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if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
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n = unsafe.Sizeof(uname.Nodename)
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if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
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n = unsafe.Sizeof(uname.Release)
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if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
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return err
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}
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mib = []_C_int{CTL_KERN, KERN_VERSION}
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n = unsafe.Sizeof(uname.Version)
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if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
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return err
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}
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// The version might have newlines or tabs in it, convert them to
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// spaces.
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for i, b := range uname.Version {
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if b == '\n' || b == '\t' {
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if i == len(uname.Version)-1 {
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uname.Version[i] = 0
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} else {
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uname.Version[i] = ' '
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}
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}
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}
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mib = []_C_int{CTL_HW, HW_MACHINE}
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n = unsafe.Sizeof(uname.Machine)
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if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
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return err
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}
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return nil
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}
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func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
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if raceenabled {
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raceReleaseMerge(unsafe.Pointer(&ioSync))
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}
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return sendfile(outfd, infd, offset, count)
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}
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func Fstatvfs(fd int, buf *Statvfs_t) (err error) {
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return Fstatvfs1(fd, buf, ST_WAIT)
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}
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func Statvfs(path string, buf *Statvfs_t) (err error) {
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return Statvfs1(path, buf, ST_WAIT)
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}
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/*
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* Exposed directly
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*/
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//sys Access(path string, mode uint32) (err error)
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//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error)
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//sys Chdir(path string) (err error)
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//sys Chflags(path string, flags int) (err error)
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//sys Chmod(path string, mode uint32) (err error)
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//sys Chown(path string, uid int, gid int) (err error)
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//sys Chroot(path string) (err error)
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//sys ClockGettime(clockid int32, time *Timespec) (err error)
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//sys Close(fd int) (err error)
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//sys Dup(fd int) (nfd int, err error)
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//sys Dup2(from int, to int) (err error)
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//sys Dup3(from int, to int, flags int) (err error)
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//sys Exit(code int)
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//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error)
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//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error)
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//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error)
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//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error)
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//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error)
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//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
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//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE
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//sys Fchdir(fd int) (err error)
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//sys Fchflags(fd int, flags int) (err error)
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//sys Fchmod(fd int, mode uint32) (err error)
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//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error)
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//sys Fchown(fd int, uid int, gid int) (err error)
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//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
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//sys Flock(fd int, how int) (err error)
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//sys Fpathconf(fd int, name int) (val int, err error)
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//sys Fstat(fd int, stat *Stat_t) (err error)
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//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
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//sys Fstatvfs1(fd int, buf *Statvfs_t, flags int) (err error) = SYS_FSTATVFS1
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//sys Fsync(fd int) (err error)
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//sys Ftruncate(fd int, length int64) (err error)
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//sysnb Getegid() (egid int)
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//sysnb Geteuid() (uid int)
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//sysnb Getgid() (gid int)
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//sysnb Getpgid(pid int) (pgid int, err error)
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//sysnb Getpgrp() (pgrp int)
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//sysnb Getpid() (pid int)
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//sysnb Getppid() (ppid int)
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//sys Getpriority(which int, who int) (prio int, err error)
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//sysnb Getrlimit(which int, lim *Rlimit) (err error)
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//sysnb Getrusage(who int, rusage *Rusage) (err error)
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//sysnb Getsid(pid int) (sid int, err error)
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//sysnb Gettimeofday(tv *Timeval) (err error)
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//sysnb Getuid() (uid int)
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//sys Issetugid() (tainted bool)
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//sys Kill(pid int, signum syscall.Signal) (err error)
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//sys Kqueue() (fd int, err error)
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//sys Lchown(path string, uid int, gid int) (err error)
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//sys Link(path string, link string) (err error)
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//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error)
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//sys Listen(s int, backlog int) (err error)
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//sys Lstat(path string, stat *Stat_t) (err error)
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//sys Mkdir(path string, mode uint32) (err error)
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//sys Mkdirat(dirfd int, path string, mode uint32) (err error)
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//sys Mkfifo(path string, mode uint32) (err error)
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//sys Mkfifoat(dirfd int, path string, mode uint32) (err error)
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//sys Mknod(path string, mode uint32, dev int) (err error)
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//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
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//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
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//sys Open(path string, mode int, perm uint32) (fd int, err error)
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//sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error)
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//sys Pathconf(path string, name int) (val int, err error)
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//sys pread(fd int, p []byte, offset int64) (n int, err error)
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//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
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//sys read(fd int, p []byte) (n int, err error)
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//sys Readlink(path string, buf []byte) (n int, err error)
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//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error)
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//sys Rename(from string, to string) (err error)
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//sys Renameat(fromfd int, from string, tofd int, to string) (err error)
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//sys Revoke(path string) (err error)
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//sys Rmdir(path string) (err error)
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//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
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//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
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//sysnb Setegid(egid int) (err error)
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//sysnb Seteuid(euid int) (err error)
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//sysnb Setgid(gid int) (err error)
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//sysnb Setpgid(pid int, pgid int) (err error)
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//sys Setpriority(which int, who int, prio int) (err error)
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//sysnb Setregid(rgid int, egid int) (err error)
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//sysnb Setreuid(ruid int, euid int) (err error)
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//sysnb Setsid() (pid int, err error)
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//sysnb Settimeofday(tp *Timeval) (err error)
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//sysnb Setuid(uid int) (err error)
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//sys Stat(path string, stat *Stat_t) (err error)
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//sys Statvfs1(path string, buf *Statvfs_t, flags int) (err error) = SYS_STATVFS1
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//sys Symlink(path string, link string) (err error)
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//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error)
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//sys Sync() (err error)
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//sys Truncate(path string, length int64) (err error)
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//sys Umask(newmask int) (oldmask int)
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//sys Unlink(path string) (err error)
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//sys Unlinkat(dirfd int, path string, flags int) (err error)
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//sys Unmount(path string, flags int) (err error)
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//sys write(fd int, p []byte) (n int, err error)
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//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
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//sys munmap(addr uintptr, length uintptr) (err error)
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//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
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const (
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mremapFixed = MAP_FIXED
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mremapDontunmap = 0
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mremapMaymove = 0
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)
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//sys mremapNetBSD(oldp uintptr, oldsize uintptr, newp uintptr, newsize uintptr, flags int) (xaddr uintptr, err error) = SYS_MREMAP
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func mremap(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (uintptr, error) {
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return mremapNetBSD(oldaddr, oldlength, newaddr, newlength, flags)
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}
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