From ad76a98d5e4bb0632333dafaf850094b15a357a1 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Wed, 4 Oct 2023 18:07:37 +0200
Subject: [PATCH] internal/syscall/unix: implement Eaccess on dragonfly

Like on other BSDs, use faccessat(AT_FDCWD, path, mode, AT_EACCESS)

Change-Id: I5b7649815651725ab9245aed3c8c1941ff9b7606
Reviewed-on: https://go-review.googlesource.com/c/go/+/532675
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
---
 src/internal/syscall/unix/at_sysnum_dragonfly.go | 10 +++++++---
 src/internal/syscall/unix/eaccess_bsd.go         |  2 +-
 src/internal/syscall/unix/eaccess_other.go       |  2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/internal/syscall/unix/at_sysnum_dragonfly.go b/src/internal/syscall/unix/at_sysnum_dragonfly.go
index b7ed3f732b..9ac1f919f1 100644
--- a/src/internal/syscall/unix/at_sysnum_dragonfly.go
+++ b/src/internal/syscall/unix/at_sysnum_dragonfly.go
@@ -10,7 +10,11 @@ const unlinkatTrap uintptr = syscall.SYS_UNLINKAT
 const openatTrap uintptr = syscall.SYS_OPENAT
 const fstatatTrap uintptr = syscall.SYS_FSTATAT
 
-const AT_REMOVEDIR = 0x2
-const AT_SYMLINK_NOFOLLOW = 0x1
+const (
+	AT_EACCESS          = 0x4
+	AT_FDCWD            = 0xfffafdcd
+	AT_REMOVEDIR        = 0x2
+	AT_SYMLINK_NOFOLLOW = 0x1
 
-const UTIME_OMIT = -0x1
+	UTIME_OMIT = -0x1
+)
diff --git a/src/internal/syscall/unix/eaccess_bsd.go b/src/internal/syscall/unix/eaccess_bsd.go
index 8f4566ef9b..3411e3ac40 100644
--- a/src/internal/syscall/unix/eaccess_bsd.go
+++ b/src/internal/syscall/unix/eaccess_bsd.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build freebsd || netbsd
+//go:build dragonfly || freebsd || netbsd
 
 package unix
 
diff --git a/src/internal/syscall/unix/eaccess_other.go b/src/internal/syscall/unix/eaccess_other.go
index f0427db302..19a2be587e 100644
--- a/src/internal/syscall/unix/eaccess_other.go
+++ b/src/internal/syscall/unix/eaccess_other.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build unix && !freebsd && !linux && !netbsd
+//go:build unix && !dragonfly && !freebsd && !linux && !netbsd
 
 package unix