unix: implement Getwd using getcwd from libSystem on darwin
Directly wrap the getcwd implementation provided by libSystem.dylib on
darwin and use it to implement Getwd like on the BSDs. This allows to
drop the custom implementation using getAttrList and to merge the
implementation of Getwd for darwin and the BSDs in syscall_bsd.go.
Change-Id: I62d38a239a7279fb95c912344bda2830856d4da4
Reviewed-on: https://go-review.googlesource.com/c/sys/+/257497
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/syscall_bsd.go b/unix/syscall_bsd.go
index 9ebe92e..123536a 100644
--- a/unix/syscall_bsd.go
+++ b/unix/syscall_bsd.go
@@ -18,6 +18,21 @@
"unsafe"
)
+const ImplementsGetwd = true
+
+func Getwd() (string, error) {
+ var buf [PathMax]byte
+ _, err := Getcwd(buf[0:])
+ if err != nil {
+ return "", err
+ }
+ n := clen(buf[:])
+ if n < 1 {
+ return "", EINVAL
+ }
+ return string(buf[:n]), nil
+}
+
/*
* Wrapped
*/
diff --git a/unix/syscall_darwin.go b/unix/syscall_darwin.go
index eddcf3a..21b8092 100644
--- a/unix/syscall_darwin.go
+++ b/unix/syscall_darwin.go
@@ -13,29 +13,10 @@
package unix
import (
- "errors"
"syscall"
"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
-}
-
// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets.
type SockaddrDatalink struct {
Len uint8
@@ -97,11 +78,6 @@
func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) }
func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) }
-const (
- attrBitMapCount = 5
- attrCmnFullpath = 0x08000000
-)
-
type attrList struct {
bitmapCount uint16
_ uint16
@@ -112,54 +88,6 @@
Forkattr uint32
}
-func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) {
- if len(attrBuf) < 4 {
- return nil, errors.New("attrBuf too small")
- }
- attrList.bitmapCount = attrBitMapCount
-
- var _p0 *byte
- _p0, err = BytePtrFromString(path)
- if err != nil {
- return nil, err
- }
-
- if err := getattrlist(_p0, unsafe.Pointer(&attrList), unsafe.Pointer(&attrBuf[0]), uintptr(len(attrBuf)), int(options)); err != nil {
- return nil, err
- }
- 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, errors.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, errors.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
-}
-
-//sys getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error)
-
//sysnb pipe() (r int, w int, err error)
func Pipe(p []int) (err error) {
@@ -419,6 +347,7 @@
//sys Fpathconf(fd int, name int) (val int, err error)
//sys Fsync(fd int) (err error)
//sys Ftruncate(fd int, length int64) (err error)
+//sys Getcwd(buf []byte) (n int, err error)
//sys Getdtablesize() (size int)
//sysnb Getegid() (egid int)
//sysnb Geteuid() (uid int)
diff --git a/unix/syscall_dragonfly.go b/unix/syscall_dragonfly.go
index 8a195ae..bed7dcf 100644
--- a/unix/syscall_dragonfly.go
+++ b/unix/syscall_dragonfly.go
@@ -129,23 +129,8 @@
return
}
-const ImplementsGetwd = true
-
//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
-func Getwd() (string, error) {
- var buf [PathMax]byte
- _, err := Getcwd(buf[0:])
- if err != nil {
- return "", err
- }
- n := clen(buf[:])
- if n < 1 {
- return "", EINVAL
- }
- return string(buf[:n]), nil
-}
-
func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
var _p0 unsafe.Pointer
var bufsize uintptr
diff --git a/unix/syscall_freebsd.go b/unix/syscall_freebsd.go
index 6932e7c..f6db02a 100644
--- a/unix/syscall_freebsd.go
+++ b/unix/syscall_freebsd.go
@@ -140,23 +140,8 @@
return
}
-const ImplementsGetwd = true
-
//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
-func Getwd() (string, error) {
- var buf [PathMax]byte
- _, err := Getcwd(buf[0:])
- if err != nil {
- return "", err
- }
- n := clen(buf[:])
- if n < 1 {
- return "", EINVAL
- }
- return string(buf[:n]), nil
-}
-
func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
var (
_p0 unsafe.Pointer
diff --git a/unix/syscall_netbsd.go b/unix/syscall_netbsd.go
index 45b50a6..dbd5e03 100644
--- a/unix/syscall_netbsd.go
+++ b/unix/syscall_netbsd.go
@@ -141,23 +141,8 @@
return
}
-const ImplementsGetwd = true
-
//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
-func Getwd() (string, error) {
- var buf [PathMax]byte
- _, err := Getcwd(buf[0:])
- if err != nil {
- return "", err
- }
- n := clen(buf[:])
- if n < 1 {
- return "", EINVAL
- }
- return string(buf[:n]), nil
-}
-
// TODO
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
return -1, ENOSYS
diff --git a/unix/syscall_openbsd.go b/unix/syscall_openbsd.go
index a266e92..2c1f46e 100644
--- a/unix/syscall_openbsd.go
+++ b/unix/syscall_openbsd.go
@@ -114,23 +114,8 @@
return
}
-const ImplementsGetwd = true
-
//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD
-func Getwd() (string, error) {
- var buf [PathMax]byte
- _, err := Getcwd(buf[0:])
- if err != nil {
- return "", err
- }
- n := clen(buf[:])
- if n < 1 {
- return "", EINVAL
- }
- return string(buf[:n]), nil
-}
-
func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
if raceenabled {
raceReleaseMerge(unsafe.Pointer(&ioSync))
diff --git a/unix/types_darwin.go b/unix/types_darwin.go
index 155c2e6..c3bb627 100644
--- a/unix/types_darwin.go
+++ b/unix/types_darwin.go
@@ -125,6 +125,12 @@
type Dirent C.struct_dirent
+// File system limits
+
+const (
+ PathMax = C.PATH_MAX
+)
+
// Sockets
type RawSockaddrInet4 C.struct_sockaddr_in
diff --git a/unix/zsyscall_darwin_386.go b/unix/zsyscall_darwin_386.go
index 3976147..bd13b38 100644
--- a/unix/zsyscall_darwin_386.go
+++ b/unix/zsyscall_darwin_386.go
@@ -490,21 +490,6 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-func getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) {
- _, _, e1 := syscall_syscall6(funcPC(libc_getattrlist_trampoline), uintptr(unsafe.Pointer(path)), uintptr(list), uintptr(buf), uintptr(size), uintptr(options), 0)
- if e1 != 0 {
- err = errnoErr(e1)
- }
- return
-}
-
-func libc_getattrlist_trampoline()
-
-//go:linkname libc_getattrlist libc_getattrlist
-//go:cgo_import_dynamic libc_getattrlist getattrlist "/usr/lib/libSystem.B.dylib"
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
func pipe() (r int, w int, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_pipe_trampoline), 0, 0, 0)
r = int(r0)
@@ -1277,6 +1262,28 @@
// 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_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 Getdtablesize() (size int) {
r0, _, _ := syscall_syscall(funcPC(libc_getdtablesize_trampoline), 0, 0, 0)
size = int(r0)
diff --git a/unix/zsyscall_darwin_386.s b/unix/zsyscall_darwin_386.s
index 961058d..d5fb53f 100644
--- a/unix/zsyscall_darwin_386.s
+++ b/unix/zsyscall_darwin_386.s
@@ -60,8 +60,6 @@
JMP libc_munlock(SB)
TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0
JMP libc_munlockall(SB)
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_pipe_trampoline(SB),NOSPLIT,$0-0
JMP libc_pipe(SB)
TEXT ·libc_getxattr_trampoline(SB),NOSPLIT,$0-0
@@ -146,6 +144,8 @@
JMP libc_fsync(SB)
TEXT ·libc_ftruncate_trampoline(SB),NOSPLIT,$0-0
JMP libc_ftruncate(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_getdtablesize_trampoline(SB),NOSPLIT,$0-0
JMP libc_getdtablesize(SB)
TEXT ·libc_getegid_trampoline(SB),NOSPLIT,$0-0
diff --git a/unix/zsyscall_darwin_amd64.go b/unix/zsyscall_darwin_amd64.go
index e253f43..d81696f 100644
--- a/unix/zsyscall_darwin_amd64.go
+++ b/unix/zsyscall_darwin_amd64.go
@@ -490,21 +490,6 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-func getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) {
- _, _, e1 := syscall_syscall6(funcPC(libc_getattrlist_trampoline), uintptr(unsafe.Pointer(path)), uintptr(list), uintptr(buf), uintptr(size), uintptr(options), 0)
- if e1 != 0 {
- err = errnoErr(e1)
- }
- return
-}
-
-func libc_getattrlist_trampoline()
-
-//go:linkname libc_getattrlist libc_getattrlist
-//go:cgo_import_dynamic libc_getattrlist getattrlist "/usr/lib/libSystem.B.dylib"
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
func pipe() (r int, w int, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_pipe_trampoline), 0, 0, 0)
r = int(r0)
@@ -1277,6 +1262,28 @@
// 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_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 Getdtablesize() (size int) {
r0, _, _ := syscall_syscall(funcPC(libc_getdtablesize_trampoline), 0, 0, 0)
size = int(r0)
diff --git a/unix/zsyscall_darwin_amd64.s b/unix/zsyscall_darwin_amd64.s
index b8be24c..887fd5f 100644
--- a/unix/zsyscall_darwin_amd64.s
+++ b/unix/zsyscall_darwin_amd64.s
@@ -60,8 +60,6 @@
JMP libc_munlock(SB)
TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0
JMP libc_munlockall(SB)
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_pipe_trampoline(SB),NOSPLIT,$0-0
JMP libc_pipe(SB)
TEXT ·libc_getxattr_trampoline(SB),NOSPLIT,$0-0
@@ -146,6 +144,8 @@
JMP libc_fsync(SB)
TEXT ·libc_ftruncate_trampoline(SB),NOSPLIT,$0-0
JMP libc_ftruncate(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_getdtablesize_trampoline(SB),NOSPLIT,$0-0
JMP libc_getdtablesize(SB)
TEXT ·libc_getegid_trampoline(SB),NOSPLIT,$0-0
diff --git a/unix/zsyscall_darwin_arm.go b/unix/zsyscall_darwin_arm.go
index be2e283..d6b5249 100644
--- a/unix/zsyscall_darwin_arm.go
+++ b/unix/zsyscall_darwin_arm.go
@@ -490,21 +490,6 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-func getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) {
- _, _, e1 := syscall_syscall6(funcPC(libc_getattrlist_trampoline), uintptr(unsafe.Pointer(path)), uintptr(list), uintptr(buf), uintptr(size), uintptr(options), 0)
- if e1 != 0 {
- err = errnoErr(e1)
- }
- return
-}
-
-func libc_getattrlist_trampoline()
-
-//go:linkname libc_getattrlist libc_getattrlist
-//go:cgo_import_dynamic libc_getattrlist getattrlist "/usr/lib/libSystem.B.dylib"
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
func pipe() (r int, w int, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_pipe_trampoline), 0, 0, 0)
r = int(r0)
@@ -1277,6 +1262,28 @@
// 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_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 Getdtablesize() (size int) {
r0, _, _ := syscall_syscall(funcPC(libc_getdtablesize_trampoline), 0, 0, 0)
size = int(r0)
diff --git a/unix/zsyscall_darwin_arm.s b/unix/zsyscall_darwin_arm.s
index 403c21f..5eec5f1 100644
--- a/unix/zsyscall_darwin_arm.s
+++ b/unix/zsyscall_darwin_arm.s
@@ -60,8 +60,6 @@
JMP libc_munlock(SB)
TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0
JMP libc_munlockall(SB)
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_pipe_trampoline(SB),NOSPLIT,$0-0
JMP libc_pipe(SB)
TEXT ·libc_getxattr_trampoline(SB),NOSPLIT,$0-0
@@ -146,6 +144,8 @@
JMP libc_fsync(SB)
TEXT ·libc_ftruncate_trampoline(SB),NOSPLIT,$0-0
JMP libc_ftruncate(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_getdtablesize_trampoline(SB),NOSPLIT,$0-0
JMP libc_getdtablesize(SB)
TEXT ·libc_getegid_trampoline(SB),NOSPLIT,$0-0
diff --git a/unix/zsyscall_darwin_arm64.go b/unix/zsyscall_darwin_arm64.go
index 34976a4..0863843 100644
--- a/unix/zsyscall_darwin_arm64.go
+++ b/unix/zsyscall_darwin_arm64.go
@@ -490,21 +490,6 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-func getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) {
- _, _, e1 := syscall_syscall6(funcPC(libc_getattrlist_trampoline), uintptr(unsafe.Pointer(path)), uintptr(list), uintptr(buf), uintptr(size), uintptr(options), 0)
- if e1 != 0 {
- err = errnoErr(e1)
- }
- return
-}
-
-func libc_getattrlist_trampoline()
-
-//go:linkname libc_getattrlist libc_getattrlist
-//go:cgo_import_dynamic libc_getattrlist getattrlist "/usr/lib/libSystem.B.dylib"
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
func pipe() (r int, w int, err error) {
r0, r1, e1 := syscall_rawSyscall(funcPC(libc_pipe_trampoline), 0, 0, 0)
r = int(r0)
@@ -1277,6 +1262,28 @@
// 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_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 Getdtablesize() (size int) {
r0, _, _ := syscall_syscall(funcPC(libc_getdtablesize_trampoline), 0, 0, 0)
size = int(r0)
diff --git a/unix/zsyscall_darwin_arm64.s b/unix/zsyscall_darwin_arm64.s
index abe7b6e..16aebee 100644
--- a/unix/zsyscall_darwin_arm64.s
+++ b/unix/zsyscall_darwin_arm64.s
@@ -60,8 +60,6 @@
JMP libc_munlock(SB)
TEXT ·libc_munlockall_trampoline(SB),NOSPLIT,$0-0
JMP libc_munlockall(SB)
-TEXT ·libc_getattrlist_trampoline(SB),NOSPLIT,$0-0
- JMP libc_getattrlist(SB)
TEXT ·libc_pipe_trampoline(SB),NOSPLIT,$0-0
JMP libc_pipe(SB)
TEXT ·libc_getxattr_trampoline(SB),NOSPLIT,$0-0
@@ -146,6 +144,8 @@
JMP libc_fsync(SB)
TEXT ·libc_ftruncate_trampoline(SB),NOSPLIT,$0-0
JMP libc_ftruncate(SB)
+TEXT ·libc_getcwd_trampoline(SB),NOSPLIT,$0-0
+ JMP libc_getcwd(SB)
TEXT ·libc_getdtablesize_trampoline(SB),NOSPLIT,$0-0
JMP libc_getdtablesize(SB)
TEXT ·libc_getegid_trampoline(SB),NOSPLIT,$0-0
diff --git a/unix/ztypes_darwin_386.go b/unix/ztypes_darwin_386.go
index 9f47b87..6103f21 100644
--- a/unix/ztypes_darwin_386.go
+++ b/unix/ztypes_darwin_386.go
@@ -145,6 +145,10 @@
_ [3]byte
}
+const (
+ PathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8
diff --git a/unix/ztypes_darwin_amd64.go b/unix/ztypes_darwin_amd64.go
index 966798a..e6576d1 100644
--- a/unix/ztypes_darwin_amd64.go
+++ b/unix/ztypes_darwin_amd64.go
@@ -151,6 +151,10 @@
_ [3]byte
}
+const (
+ PathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8
diff --git a/unix/ztypes_darwin_arm.go b/unix/ztypes_darwin_arm.go
index 4fe4c9c..af9560f 100644
--- a/unix/ztypes_darwin_arm.go
+++ b/unix/ztypes_darwin_arm.go
@@ -146,6 +146,10 @@
_ [3]byte
}
+const (
+ PathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8
diff --git a/unix/ztypes_darwin_arm64.go b/unix/ztypes_darwin_arm64.go
index 21999e4..a09c0f9 100644
--- a/unix/ztypes_darwin_arm64.go
+++ b/unix/ztypes_darwin_arm64.go
@@ -151,6 +151,10 @@
_ [3]byte
}
+const (
+ PathMax = 0x400
+)
+
type RawSockaddrInet4 struct {
Len uint8
Family uint8
