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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:14:23 +0000 |
commit | 73df946d56c74384511a194dd01dbe099584fd1a (patch) | |
tree | fd0bcea490dd81327ddfbb31e215439672c9a068 /src/cmd/go/internal/modload/stat_unix.go | |
parent | Initial commit. (diff) | |
download | golang-1.16-upstream.tar.xz golang-1.16-upstream.zip |
Adding upstream version 1.16.10.upstream/1.16.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/cmd/go/internal/modload/stat_unix.go')
-rw-r--r-- | src/cmd/go/internal/modload/stat_unix.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/cmd/go/internal/modload/stat_unix.go b/src/cmd/go/internal/modload/stat_unix.go new file mode 100644 index 0000000..f49278e --- /dev/null +++ b/src/cmd/go/internal/modload/stat_unix.go @@ -0,0 +1,32 @@ +// Copyright 2019 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. + +// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris + +package modload + +import ( + "io/fs" + "os" + "syscall" +) + +// hasWritePerm reports whether the current user has permission to write to the +// file with the given info. +// +// Although the root user on most Unix systems can write to files even without +// permission, hasWritePerm reports false if no appropriate permission bit is +// set even if the current user is root. +func hasWritePerm(path string, fi fs.FileInfo) bool { + if os.Getuid() == 0 { + // The root user can access any file, but we still want to default to + // read-only mode if the go.mod file is marked as globally non-writable. + // (If the user really intends not to be in readonly mode, they can + // pass -mod=mod explicitly.) + return fi.Mode()&0222 != 0 + } + + const W_OK = 0x2 + return syscall.Access(path, W_OK) == nil +} |