xs/hkexsh/termsize_linux.go

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// +build linux
package main
import (
"fmt"
"log"
"os"
"os/signal"
"syscall"
hkexsh "blitter.com/go/hkexsh"
)
// Handle pty resizes (notify server side)
func handleTermResizes() {
rows := 0
cols := 0
ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGWINCH)
wg.Add(1)
go func() {
defer wg.Done()
for range ch {
// Query client's term size so we can communicate it to server
// pty after interactive session starts
rows, cols, err = getTermSize()
log.Printf("[rows %v cols %v]\n", rows, cols)
if err != nil {
panic(err)
}
termSzPacket := fmt.Sprintf("%d %d", rows, cols)
conn.WritePacket([]byte(termSzPacket), hkexsh.CSOTermSize)
}
}()
ch <- syscall.SIGWINCH // Initial resize.
}