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| author | Tobias Klauser <tklauser@distanz.ch> | 2024-04-18 09:39:31 +0200 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-04-19 15:02:38 +0000 |
| commit | 974b2011ca2a74ca1137558771b428bddb2e7df3 (patch) | |
| tree | 9ecdf1125e64e46b9ce416f6340156d2f66873de | |
| parent | 104c293ffe0037de2462cdd404a6910dcf58298d (diff) | |
| download | go-974b2011ca2a74ca1137558771b428bddb2e7df3.tar.gz go-974b2011ca2a74ca1137558771b428bddb2e7df3.zip | |
internal/syscall/unix: implement Eaccess on darwin
Like on other Unix-like platforms, use faccessat(AT_FDCWD, path, mode,
AT_EACCESS).
Change-Id: I6e04b4244f8e90bd3b35b1b8a9ca38fe845b34ae
Reviewed-on: https://go-review.googlesource.com/c/go/+/579976
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
| -rw-r--r-- | src/internal/syscall/unix/asm_darwin.s | 1 | ||||
| -rw-r--r-- | src/internal/syscall/unix/at_sysnum_darwin.go | 10 | ||||
| -rw-r--r-- | src/internal/syscall/unix/eaccess_darwin.go | 31 | ||||
| -rw-r--r-- | src/internal/syscall/unix/eaccess_other.go | 2 |
4 files changed, 40 insertions, 4 deletions
diff --git a/src/internal/syscall/unix/asm_darwin.s b/src/internal/syscall/unix/asm_darwin.s index 0b8efb1506d..99f28765fe0 100644 --- a/src/internal/syscall/unix/asm_darwin.s +++ b/src/internal/syscall/unix/asm_darwin.s @@ -22,3 +22,4 @@ TEXT ·libc_getpwuid_r_trampoline(SB),NOSPLIT,$0-0; JMP libc_getpwuid_r(SB) TEXT ·libc_getgrnam_r_trampoline(SB),NOSPLIT,$0-0; JMP libc_getgrnam_r(SB) TEXT ·libc_getgrgid_r_trampoline(SB),NOSPLIT,$0-0; JMP libc_getgrgid_r(SB) TEXT ·libc_sysconf_trampoline(SB),NOSPLIT,$0-0; JMP libc_sysconf(SB) +TEXT ·libc_faccessat_trampoline(SB),NOSPLIT,$0-0; JMP libc_faccessat(SB) diff --git a/src/internal/syscall/unix/at_sysnum_darwin.go b/src/internal/syscall/unix/at_sysnum_darwin.go index 208ff34d038..77b0af80b5d 100644 --- a/src/internal/syscall/unix/at_sysnum_darwin.go +++ b/src/internal/syscall/unix/at_sysnum_darwin.go @@ -4,7 +4,11 @@ package unix -const AT_REMOVEDIR = 0x80 -const AT_SYMLINK_NOFOLLOW = 0x0020 +const ( + AT_EACCESS = 0x10 + AT_FDCWD = -0x2 + AT_REMOVEDIR = 0x80 + AT_SYMLINK_NOFOLLOW = 0x0020 -const UTIME_OMIT = -0x2 + UTIME_OMIT = -0x2 +) diff --git a/src/internal/syscall/unix/eaccess_darwin.go b/src/internal/syscall/unix/eaccess_darwin.go new file mode 100644 index 00000000000..0fa8d17afea --- /dev/null +++ b/src/internal/syscall/unix/eaccess_darwin.go @@ -0,0 +1,31 @@ +// Copyright 2024 The Go 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 unix + +import ( + "internal/abi" + "syscall" + "unsafe" +) + +func libc_faccessat_trampoline() + +//go:cgo_import_dynamic libc_faccessat faccessat "/usr/lib/libSystem.B.dylib" + +func faccessat(dirfd int, path string, mode uint32, flags int) error { + p, err := syscall.BytePtrFromString(path) + if err != nil { + return err + } + _, _, errno := syscall_syscall6(abi.FuncPCABI0(libc_faccessat_trampoline), uintptr(dirfd), uintptr(unsafe.Pointer(p)), uintptr(mode), uintptr(flags), 0, 0) + if errno != 0 { + return errno + } + return nil +} + +func Eaccess(path string, mode uint32) error { + return faccessat(AT_FDCWD, path, mode, AT_EACCESS) +} diff --git a/src/internal/syscall/unix/eaccess_other.go b/src/internal/syscall/unix/eaccess_other.go index 1a633ae857a..3da3a64f0e6 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 && !dragonfly && !freebsd && !linux && !openbsd && !netbsd +//go:build unix && !darwin && !dragonfly && !freebsd && !linux && !openbsd && !netbsd package unix |