Force Attach() to send a SIGWINCH and redraw

Basically, we want to force the application in the container to
(iff the container was made with a terminal) redraw said terminal
immediately after an attach completes, so the fresh Attach
session will be able to see what's going on (e.g. will have a
shell prompt). Our current attach functions are unfortunately
geared more towards `podman run` than `podman attach` and will
start forwarding resize events *immediately* instead of waiting
until the attach session is alive (much safer for short-lived
`podman run` sessions, but broken for the `podman attach` case).
To avoid a major rewrite, let's just manually send a SIGWINCH
after attach succeeds to force a redraw.

Fixes #6253

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

1 files changed, 1 insertions, 1 deletions

diff --git a/libpod/oci_attach_unsupported.go b/libpod/oci_attach_unsupported.go
index cd7c674b2..317dfdc90 100644
--- a/libpod/oci_attach_unsupported.go
+++ b/libpod/oci_attach_unsupported.go
@@ -9,7 +9,7 @@ import (
 	"k8s.io/client-go/tools/remotecommand"
 )
 
-func (c *Container) attach(streams *define.AttachStreams, keys string, resize <-chan remotecommand.TerminalSize, startContainer bool, started chan bool) error {
+func (c *Container) attach(streams *define.AttachStreams, keys string, resize <-chan remotecommand.TerminalSize, startContainer bool, started chan bool, attachRdy chan<- bool) error {
 	return define.ErrNotImplemented
 }