71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
//+build linux
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// Darwin does not support Fgetxattr and friends!
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package xattr_tests
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import (
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"io/ioutil"
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"syscall"
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"testing"
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"golang.org/x/sys/unix"
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"github.com/rfjakob/gocryptfs/tests/test_helpers"
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)
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func TestFdXattr(t *testing.T) {
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attr := "user.foo"
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fn := test_helpers.DefaultPlainDir + "/TestFdXattr"
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err := ioutil.WriteFile(fn, nil, 0700)
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if err != nil {
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t.Fatalf("creating empty file failed: %v", err)
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}
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fd, err := syscall.Open(fn, syscall.O_RDONLY, 0)
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if err != nil {
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t.Fatal(err)
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}
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defer syscall.Close(fd)
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buf := make([]byte, 1000)
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sz, err := unix.Flistxattr(fd, buf)
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if sz != 0 {
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t.Errorf("expected zero size, got %d", sz)
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}
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val1 := []byte("123456789")
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unix.Fsetxattr(fd, attr, val1, 0)
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sz, err = unix.Flistxattr(fd, buf)
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if err != nil {
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t.Fatal(err)
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}
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// Length of "user.attr" + terminating null byte
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expectedSz := len(attr) + 1
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if sz != expectedSz {
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t.Errorf("expected size %d, got %d", expectedSz, sz)
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}
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str := ""
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if sz > 0 {
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str = string(buf[:sz-1])
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}
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if str != attr {
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t.Errorf("expected name %q, got %q", attr, str)
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}
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// Check content
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sz, err = unix.Fgetxattr(fd, attr, buf)
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if err != nil {
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t.Fatal(err)
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}
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str = string(buf[:sz])
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if str != string(val1) {
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t.Errorf("expected val %q, got %q", val1, str)
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}
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// Delete value
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err = unix.Fremovexattr(fd, attr)
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if err != nil {
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t.Error(err)
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}
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sz, err = unix.Flistxattr(fd, buf)
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if sz != 0 {
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t.Errorf("expected zero size, got %d", sz)
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}
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}
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