/usr/share/gocode/src/github.com/hanwen/go-fuse/fuse/syscall_darwin.go is in golang-github-hanwen-go-fuse-dev 0.0~git20171124.0.14c3015-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // Copyright 2016 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package fuse
import (
"bytes"
"os"
"syscall"
"unsafe"
)
// TODO - move these into Go's syscall package.
func sys_writev(fd int, iovecs *syscall.Iovec, cnt int) (n int, err error) {
n1, _, e1 := syscall.Syscall(
syscall.SYS_WRITEV,
uintptr(fd), uintptr(unsafe.Pointer(iovecs)), uintptr(cnt))
n = int(n1)
if e1 != 0 {
err = syscall.Errno(e1)
}
return
}
func writev(fd int, packet [][]byte) (n int, err error) {
iovecs := make([]syscall.Iovec, 0, len(packet))
for _, v := range packet {
if len(v) == 0 {
continue
}
vec := syscall.Iovec{
Base: &v[0],
}
vec.SetLen(len(v))
iovecs = append(iovecs, vec)
}
sysErr := handleEINTR(func() error {
var err error
n, err = sys_writev(fd, &iovecs[0], len(iovecs))
return err
})
if sysErr != nil {
err = os.NewSyscallError("writev", sysErr)
}
return n, err
}
func getxattr(path string, attr string, dest []byte) (sz int, errno int) {
pathBs := syscall.StringBytePtr(path)
attrBs := syscall.StringBytePtr(attr)
size, _, errNo := syscall.Syscall6(
syscall.SYS_GETXATTR,
uintptr(unsafe.Pointer(pathBs)),
uintptr(unsafe.Pointer(attrBs)),
uintptr(unsafe.Pointer(&dest[0])),
uintptr(len(dest)),
0, 0)
return int(size), int(errNo)
}
func GetXAttr(path string, attr string, dest []byte) (value []byte, errno int) {
sz, errno := getxattr(path, attr, dest)
for sz > cap(dest) && errno == 0 {
dest = make([]byte, sz)
sz, errno = getxattr(path, attr, dest)
}
if errno != 0 {
return nil, errno
}
return dest[:sz], errno
}
func listxattr(path string, dest []byte) (sz int, errno int) {
pathbs := syscall.StringBytePtr(path)
var destPointer unsafe.Pointer
if len(dest) > 0 {
destPointer = unsafe.Pointer(&dest[0])
}
size, _, errNo := syscall.Syscall(
syscall.SYS_LISTXATTR,
uintptr(unsafe.Pointer(pathbs)),
uintptr(destPointer),
uintptr(len(dest)))
return int(size), int(errNo)
}
func ListXAttr(path string) (attributes []string, errno int) {
dest := make([]byte, 0)
sz, errno := listxattr(path, dest)
if errno != 0 {
return nil, errno
}
for sz > cap(dest) && errno == 0 {
dest = make([]byte, sz)
sz, errno = listxattr(path, dest)
}
// -1 to drop the final empty slice.
dest = dest[:sz-1]
attributesBytes := bytes.Split(dest, []byte{0})
attributes = make([]string, len(attributesBytes))
for i, v := range attributesBytes {
attributes[i] = string(v)
}
return attributes, errno
}
func Setxattr(path string, attr string, data []byte, flags int) (errno int) {
pathbs := syscall.StringBytePtr(path)
attrbs := syscall.StringBytePtr(attr)
_, _, errNo := syscall.Syscall6(
syscall.SYS_SETXATTR,
uintptr(unsafe.Pointer(pathbs)),
uintptr(unsafe.Pointer(attrbs)),
uintptr(unsafe.Pointer(&data[0])),
uintptr(len(data)),
uintptr(flags), 0)
return int(errNo)
}
func Removexattr(path string, attr string) (errno int) {
pathbs := syscall.StringBytePtr(path)
attrbs := syscall.StringBytePtr(attr)
_, _, errNo := syscall.Syscall(
syscall.SYS_REMOVEXATTR,
uintptr(unsafe.Pointer(pathbs)),
uintptr(unsafe.Pointer(attrbs)), 0)
return int(errNo)
}
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