vendor of containers/common

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/common/pkg/password/password_supported.go

@@ -0,0 +1,57 @@
+//go:build linux || darwin || freebsd
+// +build linux darwin freebsd
+
+package password
+
+import (
+	"errors"
+	"os"
+	"os/signal"
+	"syscall"
+
+	terminal "golang.org/x/term"
+)
+
+var ErrInterrupt = errors.New("interrupted")
+
+// Read reads a password from the terminal without echo.
+func Read(fd int) ([]byte, error) {
+	// Store and restore the terminal status on interruptions to
+	// avoid that the terminal remains in the password state
+	// This is necessary as for https://github.com/golang/go/issues/31180
+
+	oldState, err := terminal.GetState(fd)
+	if err != nil {
+		return make([]byte, 0), err
+	}
+
+	type Buffer struct {
+		Buffer []byte
+		Error  error
+	}
+	errorChannel := make(chan Buffer, 1)
+
+	// SIGINT and SIGTERM restore the terminal, otherwise the no-echo mode would remain intact
+	interruptChannel := make(chan os.Signal, 1)
+	signal.Notify(interruptChannel, syscall.SIGINT, syscall.SIGTERM)
+	defer func() {
+		signal.Stop(interruptChannel)
+		close(interruptChannel)
+	}()
+	go func() {
+		for range interruptChannel {
+			if oldState != nil {
+				_ = terminal.Restore(fd, oldState)
+			}
+			errorChannel <- Buffer{Buffer: make([]byte, 0), Error: ErrInterrupt}
+		}
+	}()
+
+	go func() {
+		buf, err := terminal.ReadPassword(fd)
+		errorChannel <- Buffer{Buffer: buf, Error: err}
+	}()
+
+	buf := <-errorChannel
+	return buf.Buffer, buf.Error
+}

vendor/github.com/containers/common/pkg/password/password_windows.go

@@ -0,0 +1,21 @@
+//go:build windows
+// +build windows
+
+package password
+
+import (
+	terminal "golang.org/x/term"
+)
+
+// Read reads a password from the terminal.
+func Read(fd int) ([]byte, error) {
+	oldState, err := terminal.GetState(fd)
+	if err != nil {
+		return make([]byte, 0), err
+	}
+	buf, err := terminal.ReadPassword(fd)
+	if oldState != nil {
+		_ = terminal.Restore(fd, oldState)
+	}
+	return buf, err
+}