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More pointless UNIX variability

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This commit is contained in:
Kovid Goyal
2026-04-24 14:56:29 +05:30
parent 0f81bca430
commit 55c4519707
5 changed files with 85 additions and 13 deletions
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11
tools/utils/file_at_fd.go
View File

@@ -148,7 +148,7 @@ func (m *UnixFileInfo) Mode() os.FileMode { return m.mode }
func (m *UnixFileInfo) ModTime() time.Time { return time.Unix(m.stat.Mtim.Unix()) }
func (m *UnixFileInfo) IsDir() bool { return m.Mode().IsDir() }
func (m *UnixFileInfo) Sys() any { return m.stat }
func (m *UnixFileInfo) Dev() int { return int(m.stat.Rdev) }
func (m *UnixFileInfo) Dev() uint64 { return uint64(m.stat.Rdev) }
// Get file info relative to the parent FD, follows symlinks
func StatAt(dirFile *os.File, name string) (ans os.FileInfo, err error) {
@@ -300,12 +300,7 @@ func DupFile(f *os.File) (ans *os.File, err error) {
func ReadLinkAt(parent *os.File, name string) (ans string, err error) {
buf := [unix.PathMax]byte{}
var n int
for {
if n, err = unix.Readlinkat(int(parent.Fd()), name, buf[:]); err != unix.EINTR {
break
}
}
n, err := readLinkAt(parent, name, buf[:])
if err != nil {
return "", &os.PathError{Op: "readlinkat", Path: filepath.Join(parent.Name(), name), Err: err}
}
@@ -352,7 +347,7 @@ func ConvertFileModeToUnix(goMode os.FileMode) uint32 {
return unixMode
}
func MknodAt(parent *os.File, name string, mode os.FileMode, dev int) (err error) {
func MknodAt(parent *os.File, name string, mode os.FileMode, dev uint64) (err error) {
unix_mode := ConvertFileModeToUnix(mode)
if err = mknodAt(parent, name, unix_mode, dev); err != nil {
err = &os.PathError{Op: "mknodat", Path: filepath.Join(parent.Name(), name), Err: err}

13
tools/utils/file_at_fd_darwin.go
View File

@@ -10,10 +10,19 @@ import (
var _ = fmt.Print
func mknodAt(parent *os.File, name string, mode uint32, dev int) (err error) {
func mknodAt(parent *os.File, name string, mode uint32, dev uint64) (err error) {
path := filepath.Join(parent.Name(), name)
for {
if err = unix.Mknod(path, mode, dev); err != unix.EINTR {
if err = unix.Mknod(path, mode, int(dev)); err != unix.EINTR {
break
}
}
return
}
func readLinkAt(parent *os.File, name string, buf []byte) (n int, err error) {
for {
if n, err = unix.Readlinkat(int(parent.Fd()), name, buf[:]); err != unix.EINTR {
break
}
}

31
tools/utils/file_at_fd_dragonfly.go Normal file
View File

@@ -0,0 +1,31 @@
package utils
import (
"fmt"
"os"
"path/filepath"
"golang.org/x/sys/unix"
)
var _ = fmt.Print
func mknodAt(parent *os.File, name string, mode uint32, dev uint64) (err error) {
for {
if err = unix.Mknodat(int(parent.Fd()), name, mode, int(dev)); err != unix.EINTR {
break
}
}
return
}
func readLinkAt(parent *os.File, name string, buf []byte) (n int, err error) {
path := filepath.Join(parent.Name(), name)
for {
if n, err = unix.Readlink(path, buf[:]); err != unix.EINTR {
break
}
}
return
}

28
tools/utils/file_at_fd_freebsd.go Normal file
View File

@@ -0,0 +1,28 @@
package utils
import (
"fmt"
"os"
"golang.org/x/sys/unix"
)
var _ = fmt.Print
func mknodAt(parent *os.File, name string, mode uint32, dev uint64) (err error) {
for {
if err = unix.Mknodat(int(parent.Fd()), name, mode, dev); err != unix.EINTR {
break
}
}
return
}
func readLinkAt(parent *os.File, name string, buf []byte) (n int, err error) {
for {
if n, err = unix.Readlinkat(int(parent.Fd()), name, buf[:]); err != unix.EINTR {
break
}
}
return
}

15
tools/utils/file_at_fd_generic.go
View File

@@ -1,4 +1,4 @@
//go:build !darwin
//go:build !darwin && !freebsd && !dragonfly
package utils
@@ -11,9 +11,18 @@ import (
var _ = fmt.Print
func mknodAt(parent *os.File, name string, mode uint32, dev int) (err error) {
func mknodAt(parent *os.File, name string, mode uint32, dev uint64) (err error) {
for {
if err = unix.Mknodat(int(parent.Fd()), name, mode, dev); err != unix.EINTR {
if err = unix.Mknodat(int(parent.Fd()), name, mode, int(dev)); err != unix.EINTR {
break
}
}
return
}
func readLinkAt(parent *os.File, name string, buf []byte) (n int, err error) {
for {
if n, err = unix.Readlinkat(int(parent.Fd()), name, buf[:]); err != unix.EINTR {
break
}
}