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os.FileOpen dropping mode bits #39458

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dougfort opened this issue Jun 8, 2020 · 2 comments
Closed

os.FileOpen dropping mode bits #39458

dougfort opened this issue Jun 8, 2020 · 2 comments

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@dougfort
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@dougfort dougfort commented Jun 8, 2020

What version of Go are you using (go version)?

$ go version
go version go1.14 linux/amd64

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/dougfort/.cache/go-build"
GOENV="/home/dougfort/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/dougfort/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/dougfort/go/src/github.com/deciphernow/gm-proxy/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build926965056=/tmp/go-build -gno-record-gcc-switches"

What did you do?

https://play.golang.org/p/UK6F9OUktVh

What did you expect to see?

666

What did you see instead?

644

@ianlancetaylor
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@ianlancetaylor ianlancetaylor commented Jun 8, 2020

What is your umask value?

@dougfort
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@dougfort dougfort commented Jun 8, 2020

What is your umask value?

 umask
0002
@dougfort dougfort closed this Jun 8, 2020
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