From f85e0d461fe80fe929eb5d82d9fec07eff810a93 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Sun, 16 Jul 2017 22:38:45 +0200 Subject: Add vendor --- vendor/golang.org/x/sys/unix/syscall_unix_test.go | 345 ++++++++++++++++++++++ 1 file changed, 345 insertions(+) create mode 100644 vendor/golang.org/x/sys/unix/syscall_unix_test.go (limited to 'vendor/golang.org/x/sys/unix/syscall_unix_test.go') diff --git a/vendor/golang.org/x/sys/unix/syscall_unix_test.go b/vendor/golang.org/x/sys/unix/syscall_unix_test.go new file mode 100644 index 0000000..394b350 --- /dev/null +++ b/vendor/golang.org/x/sys/unix/syscall_unix_test.go @@ -0,0 +1,345 @@ +// Copyright 2013 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build darwin dragonfly freebsd linux netbsd openbsd solaris + +package unix_test + +import ( + "flag" + "fmt" + "io/ioutil" + "net" + "os" + "os/exec" + "path/filepath" + "runtime" + "testing" + "time" + + "golang.org/x/sys/unix" +) + +// Tests that below functions, structures and constants are consistent +// on all Unix-like systems. +func _() { + // program scheduling priority functions and constants + var ( + _ func(int, int, int) error = unix.Setpriority + _ func(int, int) (int, error) = unix.Getpriority + ) + const ( + _ int = unix.PRIO_USER + _ int = unix.PRIO_PROCESS + _ int = unix.PRIO_PGRP + ) + + // termios constants + const ( + _ int = unix.TCIFLUSH + _ int = unix.TCIOFLUSH + _ int = unix.TCOFLUSH + ) + + // fcntl file locking structure and constants + var ( + _ = unix.Flock_t{ + Type: int16(0), + Whence: int16(0), + Start: int64(0), + Len: int64(0), + Pid: int32(0), + } + ) + const ( + _ = unix.F_GETLK + _ = unix.F_SETLK + _ = unix.F_SETLKW + ) +} + +// TestFcntlFlock tests whether the file locking structure matches +// the calling convention of each kernel. +func TestFcntlFlock(t *testing.T) { + name := filepath.Join(os.TempDir(), "TestFcntlFlock") + fd, err := unix.Open(name, unix.O_CREAT|unix.O_RDWR|unix.O_CLOEXEC, 0) + if err != nil { + t.Fatalf("Open failed: %v", err) + } + defer unix.Unlink(name) + defer unix.Close(fd) + flock := unix.Flock_t{ + Type: unix.F_RDLCK, + Start: 0, Len: 0, Whence: 1, + } + if err := unix.FcntlFlock(uintptr(fd), unix.F_GETLK, &flock); err != nil { + t.Fatalf("FcntlFlock failed: %v", err) + } +} + +// TestPassFD tests passing a file descriptor over a Unix socket. +// +// This test involved both a parent and child process. The parent +// process is invoked as a normal test, with "go test", which then +// runs the child process by running the current test binary with args +// "-test.run=^TestPassFD$" and an environment variable used to signal +// that the test should become the child process instead. +func TestPassFD(t *testing.T) { + if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" { + passFDChild() + return + } + + tempDir, err := ioutil.TempDir("", "TestPassFD") + if err != nil { + t.Fatal(err) + } + defer os.RemoveAll(tempDir) + + fds, err := unix.Socketpair(unix.AF_LOCAL, unix.SOCK_STREAM, 0) + if err != nil { + t.Fatalf("Socketpair: %v", err) + } + defer unix.Close(fds[0]) + defer unix.Close(fds[1]) + writeFile := os.NewFile(uintptr(fds[0]), "child-writes") + readFile := os.NewFile(uintptr(fds[1]), "parent-reads") + defer writeFile.Close() + defer readFile.Close() + + cmd := exec.Command(os.Args[0], "-test.run=^TestPassFD$", "--", tempDir) + cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"} + if lp := os.Getenv("LD_LIBRARY_PATH"); lp != "" { + cmd.Env = append(cmd.Env, "LD_LIBRARY_PATH="+lp) + } + cmd.ExtraFiles = []*os.File{writeFile} + + out, err := cmd.CombinedOutput() + if len(out) > 0 || err != nil { + t.Fatalf("child process: %q, %v", out, err) + } + + c, err := net.FileConn(readFile) + if err != nil { + t.Fatalf("FileConn: %v", err) + } + defer c.Close() + + uc, ok := c.(*net.UnixConn) + if !ok { + t.Fatalf("unexpected FileConn type; expected UnixConn, got %T", c) + } + + buf := make([]byte, 32) // expect 1 byte + oob := make([]byte, 32) // expect 24 bytes + closeUnix := time.AfterFunc(5*time.Second, func() { + t.Logf("timeout reading from unix socket") + uc.Close() + }) + _, oobn, _, _, err := uc.ReadMsgUnix(buf, oob) + closeUnix.Stop() + + scms, err := unix.ParseSocketControlMessage(oob[:oobn]) + if err != nil { + t.Fatalf("ParseSocketControlMessage: %v", err) + } + if len(scms) != 1 { + t.Fatalf("expected 1 SocketControlMessage; got scms = %#v", scms) + } + scm := scms[0] + gotFds, err := unix.ParseUnixRights(&scm) + if err != nil { + t.Fatalf("unix.ParseUnixRights: %v", err) + } + if len(gotFds) != 1 { + t.Fatalf("wanted 1 fd; got %#v", gotFds) + } + + f := os.NewFile(uintptr(gotFds[0]), "fd-from-child") + defer f.Close() + + got, err := ioutil.ReadAll(f) + want := "Hello from child process!\n" + if string(got) != want { + t.Errorf("child process ReadAll: %q, %v; want %q", got, err, want) + } +} + +// passFDChild is the child process used by TestPassFD. +func passFDChild() { + defer os.Exit(0) + + // Look for our fd. It should be fd 3, but we work around an fd leak + // bug here (http://golang.org/issue/2603) to let it be elsewhere. + var uc *net.UnixConn + for fd := uintptr(3); fd <= 10; fd++ { + f := os.NewFile(fd, "unix-conn") + var ok bool + netc, _ := net.FileConn(f) + uc, ok = netc.(*net.UnixConn) + if ok { + break + } + } + if uc == nil { + fmt.Println("failed to find unix fd") + return + } + + // Make a file f to send to our parent process on uc. + // We make it in tempDir, which our parent will clean up. + flag.Parse() + tempDir := flag.Arg(0) + f, err := ioutil.TempFile(tempDir, "") + if err != nil { + fmt.Printf("TempFile: %v", err) + return + } + + f.Write([]byte("Hello from child process!\n")) + f.Seek(0, 0) + + rights := unix.UnixRights(int(f.Fd())) + dummyByte := []byte("x") + n, oobn, err := uc.WriteMsgUnix(dummyByte, rights, nil) + if err != nil { + fmt.Printf("WriteMsgUnix: %v", err) + return + } + if n != 1 || oobn != len(rights) { + fmt.Printf("WriteMsgUnix = %d, %d; want 1, %d", n, oobn, len(rights)) + return + } +} + +// TestUnixRightsRoundtrip tests that UnixRights, ParseSocketControlMessage, +// and ParseUnixRights are able to successfully round-trip lists of file descriptors. +func TestUnixRightsRoundtrip(t *testing.T) { + testCases := [...][][]int{ + {{42}}, + {{1, 2}}, + {{3, 4, 5}}, + {{}}, + {{1, 2}, {3, 4, 5}, {}, {7}}, + } + for _, testCase := range testCases { + b := []byte{} + var n int + for _, fds := range testCase { + // Last assignment to n wins + n = len(b) + unix.CmsgLen(4*len(fds)) + b = append(b, unix.UnixRights(fds...)...) + } + // Truncate b + b = b[:n] + + scms, err := unix.ParseSocketControlMessage(b) + if err != nil { + t.Fatalf("ParseSocketControlMessage: %v", err) + } + if len(scms) != len(testCase) { + t.Fatalf("expected %v SocketControlMessage; got scms = %#v", len(testCase), scms) + } + for i, scm := range scms { + gotFds, err := unix.ParseUnixRights(&scm) + if err != nil { + t.Fatalf("ParseUnixRights: %v", err) + } + wantFds := testCase[i] + if len(gotFds) != len(wantFds) { + t.Fatalf("expected %v fds, got %#v", len(wantFds), gotFds) + } + for j, fd := range gotFds { + if fd != wantFds[j] { + t.Fatalf("expected fd %v, got %v", wantFds[j], fd) + } + } + } + } +} + +func TestRlimit(t *testing.T) { + var rlimit, zero unix.Rlimit + err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlimit) + if err != nil { + t.Fatalf("Getrlimit: save failed: %v", err) + } + if zero == rlimit { + t.Fatalf("Getrlimit: save failed: got zero value %#v", rlimit) + } + set := rlimit + set.Cur = set.Max - 1 + err = unix.Setrlimit(unix.RLIMIT_NOFILE, &set) + if err != nil { + t.Fatalf("Setrlimit: set failed: %#v %v", set, err) + } + var get unix.Rlimit + err = unix.Getrlimit(unix.RLIMIT_NOFILE, &get) + if err != nil { + t.Fatalf("Getrlimit: get failed: %v", err) + } + set = rlimit + set.Cur = set.Max - 1 + if set != get { + // Seems like Darwin requires some privilege to + // increase the soft limit of rlimit sandbox, though + // Setrlimit never reports an error. + switch runtime.GOOS { + case "darwin": + default: + t.Fatalf("Rlimit: change failed: wanted %#v got %#v", set, get) + } + } + err = unix.Setrlimit(unix.RLIMIT_NOFILE, &rlimit) + if err != nil { + t.Fatalf("Setrlimit: restore failed: %#v %v", rlimit, err) + } +} + +func TestSeekFailure(t *testing.T) { + _, err := unix.Seek(-1, 0, 0) + if err == nil { + t.Fatalf("Seek(-1, 0, 0) did not fail") + } + str := err.Error() // used to crash on Linux + t.Logf("Seek: %v", str) + if str == "" { + t.Fatalf("Seek(-1, 0, 0) return error with empty message") + } +} + +func TestDup(t *testing.T) { + file, err := ioutil.TempFile("", "TestDup") + if err != nil { + t.Fatalf("Tempfile failed: %v", err) + } + defer os.Remove(file.Name()) + defer file.Close() + f := int(file.Fd()) + + newFd, err := unix.Dup(f) + if err != nil { + t.Fatalf("Dup: %v", err) + } + + err = unix.Dup2(newFd, newFd+1) + if err != nil { + t.Fatalf("Dup2: %v", err) + } + + b1 := []byte("Test123") + b2 := make([]byte, 7) + _, err = unix.Write(newFd+1, b1) + if err != nil { + t.Fatalf("Write to dup2 fd failed: %v", err) + } + _, err = unix.Seek(f, 0, 0) + _, err = unix.Read(f, b2) + if err != nil { + t.Fatalf("Read back failed: %v", err) + } + if string(b1) != string(b2) { + t.Errorf("Dup: stdout write not in file, expected %v, got %v", string(b1), string(b2)) + } +} -- cgit v1.2.3