From 95c9a656ae2e690c82ca339605a79f88f407fa9b Mon Sep 17 00:00:00 2001 From: Mostyn Bramley-Moore Date: Wed, 27 Nov 2019 00:10:47 +0000 Subject: [PATCH] doc: clarify interaction of ioutil.WriteFile with umask Note that ioutil.WriteFile's perm argument is the value before the umask is applied. Fixes #35835 Change-Id: I61cd9c88bced3be52b616d86e060cd3fd912ab1f Change-Id: I61cd9c88bced3be52b616d86e060cd3fd912ab1f GitHub-Last-Rev: 0069abb7c5d904fb11448148f44db023dbcf74aa GitHub-Pull-Request: golang/go#35836 Reviewed-on: https://go-review.googlesource.com/c/go/+/208838 Reviewed-by: Ian Lance Taylor --- src/io/ioutil/ioutil.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/io/ioutil/ioutil.go b/src/io/ioutil/ioutil.go index e617be5dae..b1cb841468 100644 --- a/src/io/ioutil/ioutil.go +++ b/src/io/ioutil/ioutil.go @@ -74,8 +74,8 @@ func ReadFile(filename string) ([]byte, error) { } // WriteFile writes data to a file named by filename. -// If the file does not exist, WriteFile creates it with permissions perm; -// otherwise WriteFile truncates it before writing. +// If the file does not exist, WriteFile creates it with permissions perm +// (before umask); otherwise WriteFile truncates it before writing. func WriteFile(filename string, data []byte, perm os.FileMode) error { f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm) if err != nil {