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Jakob Unterwurzacher
68f4c21890
OpenSymlinkAware is a symlink-aware Open/Openat2 wrapper that can be used for implementing symlink-safe operations. Change-Id: If2e50be8d1f217b2a4483a14c62d82d83d08ed94
16 lines
504 B
Go
16 lines
504 B
Go
//go:build !linux
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package openat
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import (
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"golang.org/x/sys/unix"
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)
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// TODO: This is insecure as O_NOFOLLOW only affects the final path component.
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// See https://github.com/rfjakob/gocryptfs/issues/165 for how this could be handled.
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func openatNoSymlinks(dirfd int, path string, flags int, mode uint32) (fd int, err error) {
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// os/exec expects all fds to have O_CLOEXEC or it will leak them to subprocesses.
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flags |= unix.O_NOFOLLOW | unix.O_CLOEXEC
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return unix.Openat(dirfd, path, flags, mode)
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}
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