tests: add basic build progress test

Signed-off-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

vendor/github.com/creack/pty/pty_solaris.go

@@ -0,0 +1,152 @@
+//go:build solaris
+// +build solaris
+
+package pty
+
+/* based on:
+http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libc/port/gen/pt.c
+*/
+
+import (
+	"errors"
+	"os"
+	"strconv"
+	"syscall"
+	"unsafe"
+)
+
+func open() (pty, tty *os.File, err error) {
+	ptmxfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_NOCTTY, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	p := os.NewFile(uintptr(ptmxfd), "/dev/ptmx")
+	// In case of error after this point, make sure we close the ptmx fd.
+	defer func() {
+		if err != nil {
+			_ = p.Close() // Best effort.
+		}
+	}()
+
+	sname, err := ptsname(p)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if err := grantpt(p); err != nil {
+		return nil, nil, err
+	}
+
+	if err := unlockpt(p); err != nil {
+		return nil, nil, err
+	}
+
+	ptsfd, err := syscall.Open(sname, os.O_RDWR|syscall.O_NOCTTY, 0)
+	if err != nil {
+		return nil, nil, err
+	}
+	t := os.NewFile(uintptr(ptsfd), sname)
+
+	// In case of error after this point, make sure we close the pts fd.
+	defer func() {
+		if err != nil {
+			_ = t.Close() // Best effort.
+		}
+	}()
+
+	// pushing terminal driver STREAMS modules as per pts(7)
+	for _, mod := range []string{"ptem", "ldterm", "ttcompat"} {
+		if err := streamsPush(t, mod); err != nil {
+			return nil, nil, err
+		}
+	}
+
+	return p, t, nil
+}
+
+func ptsname(f *os.File) (string, error) {
+	dev, err := ptsdev(f.Fd())
+	if err != nil {
+		return "", err
+	}
+	fn := "/dev/pts/" + strconv.FormatInt(int64(dev), 10)
+
+	if err := syscall.Access(fn, 0); err != nil {
+		return "", err
+	}
+	return fn, nil
+}
+
+func unlockpt(f *os.File) error {
+	istr := strioctl{
+		icCmd:     UNLKPT,
+		icTimeout: 0,
+		icLen:     0,
+		icDP:      nil,
+	}
+	return ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr)))
+}
+
+func minor(x uint64) uint64 { return x & 0377 }
+
+func ptsdev(fd uintptr) (uint64, error) {
+	istr := strioctl{
+		icCmd:     ISPTM,
+		icTimeout: 0,
+		icLen:     0,
+		icDP:      nil,
+	}
+
+	if err := ioctl(fd, I_STR, uintptr(unsafe.Pointer(&istr))); err != nil {
+		return 0, err
+	}
+	var status syscall.Stat_t
+	if err := syscall.Fstat(int(fd), &status); err != nil {
+		return 0, err
+	}
+	return uint64(minor(status.Rdev)), nil
+}
+
+type ptOwn struct {
+	rUID int32
+	rGID int32
+}
+
+func grantpt(f *os.File) error {
+	if _, err := ptsdev(f.Fd()); err != nil {
+		return err
+	}
+	pto := ptOwn{
+		rUID: int32(os.Getuid()),
+		// XXX should first attempt to get gid of DEFAULT_TTY_GROUP="tty"
+		rGID: int32(os.Getgid()),
+	}
+	istr := strioctl{
+		icCmd:     OWNERPT,
+		icTimeout: 0,
+		icLen:     int32(unsafe.Sizeof(strioctl{})),
+		icDP:      unsafe.Pointer(&pto),
+	}
+	if err := ioctl(f.Fd(), I_STR, uintptr(unsafe.Pointer(&istr))); err != nil {
+		return errors.New("access denied")
+	}
+	return nil
+}
+
+// streamsPush pushes STREAMS modules if not already done so.
+func streamsPush(f *os.File, mod string) error {
+	buf := []byte(mod)
+
+	// XXX I_FIND is not returning an error when the module
+	// is already pushed even though truss reports a return
+	// value of 1. A bug in the Go Solaris syscall interface?
+	// XXX without this we are at risk of the issue
+	// https://www.illumos.org/issues/9042
+	// but since we are not using libc or XPG4.2, we should not be
+	// double-pushing modules
+
+	if err := ioctl(f.Fd(), I_FIND, uintptr(unsafe.Pointer(&buf[0]))); err != nil {
+		return nil
+	}
+	return ioctl(f.Fd(), I_PUSH, uintptr(unsafe.Pointer(&buf[0])))
+}