be2bd4eec7
Except xattrSupported, this is a false positive.
$ golangci-lint run --disable-all --enable unused --enable deadcode
gocryptfs-xray/xray_main.go:24:5: `GitVersionFuse` is unused (deadcode)
var GitVersionFuse = "[GitVersionFuse not set - please compile using ./build.bash]"
^
tests/symlink_race/main.go:47:6: `chmodLoop` is unused (deadcode)
func chmodLoop() {
^
internal/readpassword/extpass_test.go:11:5: `testPw` is unused (deadcode)
var testPw = []byte("test")
^
tests/reverse/xattr_test.go:13:6: func `xattrSupported` is unused (unused)
func xattrSupported(path string) bool {
^
internal/fusefrontend_reverse/rpath.go:20:22: func `(*RootNode).abs` is unused (unused)
func (rfs *RootNode) abs(relPath string, err error) (string, error) {
^
tests/matrix/matrix_test.go:310:6: `sContains` is unused (deadcode)
func sContains(haystack []string, needle string) bool {
78 lines
1.3 KiB
Go
78 lines
1.3 KiB
Go
package main
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import (
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"fmt"
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"os"
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"syscall"
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)
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const (
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testFile = "symlink_race.test_file"
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testFileTmp = testFile + ".tmp"
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)
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func renameLoop() {
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// May be left behind from an earlier run
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syscall.Unlink(testFileTmp)
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var err error
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var fd *os.File
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for {
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err = syscall.Symlink("/root/chmod_me", testFileTmp)
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if err != nil {
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fmt.Printf("Symlink() failed: %v\n", err)
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continue
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}
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err = syscall.Rename(testFileTmp, testFile)
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if err != nil {
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fmt.Printf("Rename() 1 failed: %v\n", err)
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continue
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}
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fd, err = os.Create(testFileTmp)
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if err != nil {
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fmt.Printf("Create() failed: %v\n", err)
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continue
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}
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fd.Close()
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err = syscall.Rename(testFileTmp, testFile)
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if err != nil {
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fmt.Printf("Rename() 2 failed: %v\n", err)
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continue
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}
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fmt.Printf(".")
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}
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}
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func openLoop() {
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var err error
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var f *os.File
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buf := make([]byte, 100)
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owned := []byte("owned")
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var n int
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for {
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f, err = os.OpenFile(testFile, os.O_RDWR, 0777)
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if err != nil {
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fmt.Printf("Open() failed: %v\n", err)
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continue
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}
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_, err = f.Write(owned)
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if err != nil {
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fmt.Printf("Write() failed: %v\n", err)
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}
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n, err = f.Read(buf)
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if err != nil {
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fmt.Printf("Read() failed: %v\n", err)
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continue
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}
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if n > 0 {
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fmt.Printf("Content: %q\n", string(buf[:n]))
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os.Exit(1)
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}
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}
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}
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func main() {
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go openLoop()
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renameLoop()
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}
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