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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /src/cmd/go/internal/toolchain/umask_unix.go | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/cmd/go/internal/toolchain/umask_unix.go')
-rw-r--r-- | src/cmd/go/internal/toolchain/umask_unix.go | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/cmd/go/internal/toolchain/umask_unix.go b/src/cmd/go/internal/toolchain/umask_unix.go new file mode 100644 index 0000000..cbe4307 --- /dev/null +++ b/src/cmd/go/internal/toolchain/umask_unix.go @@ -0,0 +1,28 @@ +// Copyright 2023 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. + +//go:build darwin || freebsd || linux || netbsd || openbsd + +package toolchain + +import ( + "io/fs" + "syscall" +) + +// sysWriteBits determines which bits to OR into the mode to make a directory writable. +// It must be called when there are no other file system operations happening. +func sysWriteBits() fs.FileMode { + // Read current umask. There's no way to read it without also setting it, + // so set it conservatively and then restore the original one. + m := syscall.Umask(0o777) + syscall.Umask(m) // restore bits + if m&0o22 == 0o22 { // group and world are unwritable by default + return 0o700 + } + if m&0o2 == 0o2 { // group is writable by default, but not world + return 0o770 + } + return 0o777 // everything is writable by default +} |