From f79c99fe8ae4a5e4380af22ee6cb38c3eb3a0416 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Tue, 3 Oct 2023 11:20:29 +0200
Subject: [PATCH] internal/syscall/unix: implement Eaccess on netbsd

Like on linux and freebsd, use faccessat(AT_FDCWD, path, mode, AT_EACCESS)

Change-Id: Ia76ba67023b6deba6f0cdaf30a0b9cee0c140bb8
Reviewed-on: https://go-review.googlesource.com/c/go/+/531876
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
---
 src/internal/syscall/unix/at_sysnum_netbsd.go          | 10 +++++++---
 .../unix/{eaccess_freebsd.go => eaccess_bsd.go}        |  2 ++
 src/internal/syscall/unix/eaccess_other.go             |  2 +-
 3 files changed, 10 insertions(+), 4 deletions(-)
 rename src/internal/syscall/unix/{eaccess_freebsd.go => eaccess_bsd.go} (95%)

diff --git a/src/internal/syscall/unix/at_sysnum_netbsd.go b/src/internal/syscall/unix/at_sysnum_netbsd.go
index becc1bdf82..ffb1d2eaf8 100644
--- a/src/internal/syscall/unix/at_sysnum_netbsd.go
+++ b/src/internal/syscall/unix/at_sysnum_netbsd.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 = 0x800
-const AT_SYMLINK_NOFOLLOW = 0x200
+const (
+	AT_EACCESS          = 0x100
+	AT_FDCWD            = -0x64
+	AT_REMOVEDIR        = 0x800
+	AT_SYMLINK_NOFOLLOW = 0x200
 
-const UTIME_OMIT = (1 << 30) - 2
+	UTIME_OMIT = (1 << 30) - 2
+)
diff --git a/src/internal/syscall/unix/eaccess_freebsd.go b/src/internal/syscall/unix/eaccess_bsd.go
similarity index 95%
rename from src/internal/syscall/unix/eaccess_freebsd.go
rename to src/internal/syscall/unix/eaccess_bsd.go
index f2514c0a84..8f4566ef9b 100644
--- a/src/internal/syscall/unix/eaccess_freebsd.go
+++ b/src/internal/syscall/unix/eaccess_bsd.go
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build freebsd || netbsd
+
 package unix
 
 import (
diff --git a/src/internal/syscall/unix/eaccess_other.go b/src/internal/syscall/unix/eaccess_other.go
index 4fa2265900..f0427db302 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
+//go:build unix && !freebsd && !linux && !netbsd
 
 package unix