"unsafe"
)
+const ImplementsGetwd = true
+
+func Getwd() (string, error) {
+ var buf [pathMax]byte
+ _, err := getcwd(buf[:])
+ if err != nil {
+ return "", err
+ }
+ n := clen(buf[:])
+ if n < 1 {
+ return "", EINVAL
+ }
+ return string(buf[:n]), nil
+}
+
/*
* Wrapped
*/
package syscall
-import (
- errorspkg "errors"
- "unsafe"
-)
-
-const ImplementsGetwd = true
-
-func Getwd() (string, error) {
- buf := make([]byte, 2048)
- attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0)
- if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 {
- wd := string(attrs[0])
- // Sanity check that it's an absolute path and ends
- // in a null byte, which we then strip.
- if wd[0] == '/' && wd[len(wd)-1] == 0 {
- return wd[:len(wd)-1], nil
- }
- }
- // If pkg/os/getwd.go gets ENOTSUP, it will fall back to the
- // slow algorithm.
- return "", ENOTSUP
-}
+import "unsafe"
type SockaddrDatalink struct {
Len uint8
attrBitMapCount = 5
attrCmnModtime = 0x00000400
attrCmnAcctime = 0x00001000
- attrCmnFullpath = 0x08000000
)
type attrList struct {
Forkattr uint32
}
-func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
- if len(attrBuf) < 4 {
- return nil, errorspkg.New("attrBuf too small")
- }
- attrList.bitmapCount = attrBitMapCount
-
- var _p0 *byte
- _p0, err = BytePtrFromString(path)
- if err != nil {
- return nil, err
- }
-
- _, _, e1 := syscall6(
- funcPC(libc_getattrlist_trampoline),
- uintptr(unsafe.Pointer(_p0)),
- uintptr(unsafe.Pointer(&attrList)),
- uintptr(unsafe.Pointer(&attrBuf[0])),
- uintptr(len(attrBuf)),
- uintptr(options),
- 0,
- )
- if e1 != 0 {
- return nil, e1
- }
- size := *(*uint32)(unsafe.Pointer(&attrBuf[0]))
-
- // dat is the section of attrBuf that contains valid data,
- // without the 4 byte length header. All attribute offsets
- // are relative to dat.
- dat := attrBuf
- if int(size) < len(attrBuf) {
- dat = dat[:size]
- }
- dat = dat[4:] // remove length prefix
-
- for i := uint32(0); int(i) < len(dat); {
- header := dat[i:]
- if len(header) < 8 {
- return attrs, errorspkg.New("truncated attribute header")
- }
- datOff := *(*int32)(unsafe.Pointer(&header[0]))
- attrLen := *(*uint32)(unsafe.Pointer(&header[4]))
- if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) {
- return attrs, errorspkg.New("truncated results; attrBuf too small")
- }
- end := uint32(datOff) + attrLen
- attrs = append(attrs, dat[datOff:end])
- i = end
- if r := i % 4; r != 0 {
- i += (4 - r)
- }
- }
- return
-}
-
-func libc_getattrlist_trampoline()
-
-//go:linkname libc_getattrlist libc_getattrlist
-//go:cgo_import_dynamic libc_getattrlist getattrlist "/usr/lib/libSystem.B.dylib"
-
//sysnb pipe(p *[2]int32) (err error)
func Pipe(p []int) (err error) {
//sys fcntlPtr(fd int, cmd int, arg unsafe.Pointer) (val int, err error) = SYS_fcntl
//sys unlinkat(fd int, path string, flags int) (err error)
//sys openat(fd int, path string, flags int, perm uint32) (fdret int, err error)
+//sys getcwd(buf []byte) (n int, err error)
func init() {
execveDarwin = execve
+++ /dev/null
-// Copyright 2018 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.
-
-// +build dragonfly freebsd netbsd openbsd
-
-package syscall
-
-const ImplementsGetwd = true
-
-func Getwd() (string, error) {
- var buf [pathMax]byte
- _, err := getcwd(buf[:])
- if err != nil {
- return "", err
- }
- n := clen(buf[:])
- if n < 1 {
- return "", EINVAL
- }
- return string(buf[:n]), nil
-}
type Dirent C.struct_dirent
+// File system limits
+
+const (
+ pathMax = C.PATH_MAX
+)
+
// Sockets
type RawSockaddrInet4 C.struct_sockaddr_in
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func getcwd(buf []byte) (n int, err error) {
+ var _p0 unsafe.Pointer
+ if len(buf) > 0 {
+ _p0 = unsafe.Pointer(&buf[0])
+ } else {
+ _p0 = unsafe.Pointer(&_zero)
+ }
+ r0, _, e1 := syscall(funcPC(libc_getcwd_trampoline), uintptr(_p0), uintptr(len(buf)), 0)
+ n = int(r0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+func libc_getcwd_trampoline()
+
+//go:linkname libc_getcwd libc_getcwd
+//go:cgo_import_dynamic libc_getcwd getcwd "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := syscall(funcPC(libc_fstat64_trampoline), uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {
// go run mkasm_darwin.go amd64
// Code generated by the command above; DO NOT EDIT.
#include "textflag.h"
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_getfsstat_trampoline(SB),NOSPLIT,$0-0
JMP libc_getfsstat(SB)
TEXT ·libc_setattrlist_trampoline(SB),NOSPLIT,$0-0
JMP libc_unlinkat(SB)
TEXT ·libc_openat_trampoline(SB),NOSPLIT,$0-0
JMP libc_openat(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_fstat64_trampoline(SB),NOSPLIT,$0-0
JMP libc_fstat64(SB)
TEXT ·libc_fstatfs64_trampoline(SB),NOSPLIT,$0-0
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func getcwd(buf []byte) (n int, err error) {
+ var _p0 unsafe.Pointer
+ if len(buf) > 0 {
+ _p0 = unsafe.Pointer(&buf[0])
+ } else {
+ _p0 = unsafe.Pointer(&_zero)
+ }
+ r0, _, e1 := syscall(funcPC(libc_getcwd_trampoline), uintptr(_p0), uintptr(len(buf)), 0)
+ n = int(r0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+func libc_getcwd_trampoline()
+
+//go:linkname libc_getcwd libc_getcwd
+//go:cgo_import_dynamic libc_getcwd getcwd "/usr/lib/libSystem.B.dylib"
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Fstat(fd int, stat *Stat_t) (err error) {
_, _, e1 := syscall(funcPC(libc_fstat_trampoline), uintptr(fd), uintptr(unsafe.Pointer(stat)), 0)
if e1 != 0 {
// go run mkasm_darwin.go arm64
// Code generated by the command above; DO NOT EDIT.
#include "textflag.h"
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_getfsstat_trampoline(SB),NOSPLIT,$0-0
JMP libc_getfsstat(SB)
TEXT ·libc_setattrlist_trampoline(SB),NOSPLIT,$0-0
JMP libc_unlinkat(SB)
TEXT ·libc_openat_trampoline(SB),NOSPLIT,$0-0
JMP libc_openat(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_fstat_trampoline(SB),NOSPLIT,$0-0
JMP libc_fstat(SB)
TEXT ·libc_fstatfs_trampoline(SB),NOSPLIT,$0-0
Pad_cgo_0 [3]byte
}
+const (
+ pathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8
Pad_cgo_0 [3]byte
}
+const (
+ pathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8