77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin freebsd linux netbsd openbsd
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package os_test
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import (
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. "os"
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"runtime"
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"syscall"
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"testing"
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)
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func checkUidGid(t *testing.T, path string, uid, gid int) {
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dir, err := Stat(path)
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if err != nil {
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t.Fatalf("Stat %q (looking for uid/gid %d/%d): %s", path, uid, gid, err)
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}
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sys := dir.(*FileStat).Sys.(*syscall.Stat_t)
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if int(sys.Uid) != uid {
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t.Errorf("Stat %q: uid %d want %d", path, sys.Uid, uid)
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}
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if int(sys.Gid) != gid {
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t.Errorf("Stat %q: gid %d want %d", path, sys.Gid, gid)
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}
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}
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func TestChown(t *testing.T) {
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// Chown is not supported under windows or Plan 9.
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// Plan9 provides a native ChownPlan9 version instead.
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if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
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return
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}
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// Use TempDir() to make sure we're on a local file system,
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// so that the group ids returned by Getgroups will be allowed
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// on the file. On NFS, the Getgroups groups are
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// basically useless.
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f := newFile("TestChown", t)
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defer Remove(f.Name())
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defer f.Close()
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dir, err := f.Stat()
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if err != nil {
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t.Fatalf("stat %s: %s", f.Name(), err)
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}
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// Can't change uid unless root, but can try
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// changing the group id. First try our current group.
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gid := Getgid()
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t.Log("gid:", gid)
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if err = Chown(f.Name(), -1, gid); err != nil {
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t.Fatalf("chown %s -1 %d: %s", f.Name(), gid, err)
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}
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sys := dir.(*FileStat).Sys.(*syscall.Stat_t)
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checkUidGid(t, f.Name(), int(sys.Uid), gid)
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// Then try all the auxiliary groups.
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groups, err := Getgroups()
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if err != nil {
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t.Fatalf("getgroups: %s", err)
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}
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t.Log("groups: ", groups)
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for _, g := range groups {
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if err = Chown(f.Name(), -1, g); err != nil {
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t.Fatalf("chown %s -1 %d: %s", f.Name(), g, err)
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}
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checkUidGid(t, f.Name(), int(sys.Uid), g)
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// change back to gid to test fd.Chown
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if err = f.Chown(-1, gid); err != nil {
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t.Fatalf("fchown %s -1 %d: %s", f.Name(), gid, err)
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}
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checkUidGid(t, f.Name(), int(sys.Uid), gid)
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}
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}
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