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package syscallcompat
import (
"os"
"syscall"
"testing"
)
func TestOpenNofollow(t *testing.T) {
err := os.MkdirAll(tmpDir+"/d1/d2/d3", 0700)
if err != nil {
t.Fatal(err)
}
// Create a file
dirfd, err := OpenDirNofollow(tmpDir, "d1/d2/d3")
if err != nil {
t.Fatal(err)
}
fd, err := Openat(dirfd, "f1", syscall.O_RDWR|syscall.O_CREAT|syscall.O_EXCL, 0600)
if err != nil {
t.Fatal(err)
}
syscall.Close(fd)
_, err = os.Stat(tmpDir + "/d1/d2/d3/f1")
if err != nil {
t.Fatal(err)
}
// Replace "d1" with a symlink - open should fail with ELOOP
err = os.Rename(tmpDir+"/d1", tmpDir+"/d1.renamed")
if err != nil {
t.Fatal(err)
}
os.Symlink(tmpDir+"/d1.renamed", tmpDir+"/d1")
fd, err = OpenDirNofollow(tmpDir, "d1/d2/d3")
if err == nil {
t.Fatalf("should have failed")
}
if err != syscall.ELOOP && err != syscall.ENOTDIR {
t.Errorf("expected ELOOP or ENOTDIR, got %v", err)
}
// Check to see that the base dir can be opened as well
fd, err = OpenDirNofollow(tmpDir, "")
if err != nil {
t.Errorf("cannot open base dir: %v", err)
} else {
syscall.Close(fd)
}
}
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