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// +build !windows
package pty
import (
"os"
"os/exec"
"syscall"
)
// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
// and c.Stderr, calls c.Start, and returns the File of the tty's
// corresponding pty.
func Start(c *exec.Cmd) (pty *os.File, err error) {
return StartWithSize(c, nil)
}
// StartWithSize assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
// and c.Stderr, calls c.Start, and returns the File of the tty's
// corresponding pty.
//
// This will resize the pty to the specified size before starting the command
func StartWithSize(c *exec.Cmd, sz *Winsize) (pty *os.File, err error) {
pty, tty, err := Open()
if err != nil {
return nil, err
}
defer tty.Close()
if sz != nil {
err = Setsize(pty, sz)
if err != nil {
pty.Close()
return nil, err
}
}
if c.Stdout == nil {
c.Stdout = tty
}
if c.Stderr == nil {
c.Stderr = tty
}
c.Stdin = tty
if c.SysProcAttr == nil {
c.SysProcAttr = &syscall.SysProcAttr{}
}
c.SysProcAttr.Setctty = true
c.SysProcAttr.Setsid = true
err = c.Start()
if err != nil {
pty.Close()
return nil, err
}
return pty, err
}
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