Go version
1.23.0
Output of go env in your module/workspace:
set GO111MODULE=on
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\XJ\AppData\Local\go-build
set GOENV=C:\Users\XJ\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=gitlab.cd.anpro
set GOMODCACHE=C:\Users\XJ\go\pkg\mod
set GONOPROXY=gitlab.cd.anpro
set GONOSUMDB=gitlab.cd.anpro
set GOOS=windows
set GOPATH=C:\Users\XJ\go
set GOPRIVATE=gitlab.cd.anpro
set GOPROXY=https://goproxy.cn,direct
set GOROOT=C:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLCHAIN=auto
set GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.23.0
set GODEBUG=
set GOTELEMETRY=local
set GOTELEMETRYDIR=C:\Users\XJ\AppData\Roaming\go\telemetry
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=0
set GOMOD=F:\Project\GO\common\go.mod
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\XJ\AppData\Local\Temp\go-build135844245=/tmp/go-build -gno-record-gcc-switches\
What did you do?
When trying to extract a large ZIP archive (several GB in size) created using the Windows 10 built-in "Send to → Compressed (zipped) folder" feature, the extraction fails with an error related to the central directory.
Steps to reproduce:
- On Windows 10, right-click a large folder (>4GB total) → "Send to → Compressed (zipped) folder".
- Try to extract the resulting .zip with this library in Go.
- Observe the extraction error regarding the central directory.
example code:
f, _ := os.Open("./test/zip-big.zip")
defer f.Close()
stat, _ := f.Stat()
fmt.Println("Size:", stat.Size())
_, err := zip.NewReader(f, stat.Size())
fmt.Println("zip open:", err)What did you see happen?
The same archive can be opened by Windows Explorer, 7-Zip, and WinRAR without issues, but fails when using this library. It seems the built-in ZIP tool generates a non-standard or incomplete central directory (possibly ZIP64) that causes compatibility problems.
example out:
Size: 4531791165
zip open: zip: not a valid zip file
What did you expect to see?
The library should be able to extract ZIP files created by the Windows built-in tool, even for large archives.
Go version
1.23.0
Output of
go envin your module/workspace:What did you do?
When trying to extract a large ZIP archive (several GB in size) created using the Windows 10 built-in "Send to → Compressed (zipped) folder" feature, the extraction fails with an error related to the central directory.
Steps to reproduce:
example code:
What did you see happen?
The same archive can be opened by Windows Explorer, 7-Zip, and WinRAR without issues, but fails when using this library. It seems the built-in ZIP tool generates a non-standard or incomplete central directory (possibly ZIP64) that causes compatibility problems.
example out:
What did you expect to see?
The library should be able to extract ZIP files created by the Windows built-in tool, even for large archives.