1 files changed, 113 insertions, 0 deletions
diff --git a/pkg/domain/infra/abi/terminal/terminal_common.go b/pkg/domain/infra/abi/terminal/terminal_common.go
new file mode 100644
index 000000000..afae2c085
--- /dev/null
+++ b/pkg/domain/infra/abi/terminal/terminal_common.go
@@ -0,0 +1,113 @@
+//go:build linux || freebsd
+// +build linux freebsd
+
+package terminal
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/containers/common/pkg/resize"
+	"github.com/containers/podman/v4/libpod"
+	"github.com/containers/podman/v4/libpod/define"
+	"github.com/sirupsen/logrus"
+	"golang.org/x/term"
+)
+
+// ExecAttachCtr execs and attaches to a container
+func ExecAttachCtr(ctx context.Context, ctr *libpod.Container, execConfig *libpod.ExecConfig, streams *define.AttachStreams) (int, error) {
+	var resizechan chan resize.TerminalSize
+	haveTerminal := term.IsTerminal(int(os.Stdin.Fd()))
+
+	// Check if we are attached to a terminal. If we are, generate resize
+	// events, and set the terminal to raw mode
+	if haveTerminal && execConfig.Terminal {
+		resizechan = make(chan resize.TerminalSize)
+		cancel, oldTermState, err := handleTerminalAttach(ctx, resizechan)
+		if err != nil {
+			return -1, err
+		}
+		defer cancel()
+		defer func() {
+			if err := restoreTerminal(oldTermState); err != nil {
+				logrus.Errorf("Unable to restore terminal: %q", err)
+			}
+		}()
+	}
+	return ctr.Exec(execConfig, streams, resizechan)
+}
+
+// StartAttachCtr starts and (if required) attaches to a container
+// if you change the signature of this function from os.File to io.Writer, it will trigger a downstream
+// error. we may need to just lint disable this one.
+func StartAttachCtr(ctx context.Context, ctr *libpod.Container, stdout, stderr, stdin *os.File, detachKeys string, sigProxy bool, startContainer bool) error { //nolint: interfacer
+	resize := make(chan resize.TerminalSize)
+
+	haveTerminal := term.IsTerminal(int(os.Stdin.Fd()))
+
+	// Check if we are attached to a terminal. If we are, generate resize
+	// events, and set the terminal to raw mode
+	if haveTerminal && ctr.Spec().Process.Terminal {
+		cancel, oldTermState, err := handleTerminalAttach(ctx, resize)
+		if err != nil {
+			return err
+		}
+		defer func() {
+			if err := restoreTerminal(oldTermState); err != nil {
+				logrus.Errorf("Unable to restore terminal: %q", err)
+			}
+		}()
+		defer cancel()
+	}
+
+	streams := new(define.AttachStreams)
+	streams.OutputStream = stdout
+	streams.ErrorStream = stderr
+	streams.InputStream = bufio.NewReader(stdin)
+	streams.AttachOutput = true
+	streams.AttachError = true
+	streams.AttachInput = true
+
+	if stdout == nil {
+		logrus.Debugf("Not attaching to stdout")
+		streams.AttachOutput = false
+	}
+	if stderr == nil {
+		logrus.Debugf("Not attaching to stderr")
+		streams.AttachError = false
+	}
+	if stdin == nil {
+		logrus.Debugf("Not attaching to stdin")
+		streams.AttachInput = false
+	}
+
+	if !startContainer {
+		if sigProxy {
+			ProxySignals(ctr)
+		}
+
+		return ctr.Attach(streams, detachKeys, resize)
+	}
+
+	attachChan, err := ctr.StartAndAttach(ctx, streams, detachKeys, resize, true)
+	if err != nil {
+		return err
+	}
+
+	if sigProxy {
+		ProxySignals(ctr)
+	}
+
+	if stdout == nil && stderr == nil {
+		fmt.Printf("%s\n", ctr.ID())
+	}
+
+	err = <-attachChan
+	if err != nil {
+		return fmt.Errorf("error attaching to container %s: %w", ctr.ID(), err)
+	}
+
+	return nil
+}