61646d77af
Signed-off-by: Alexander Morozov <lk4d4@docker.com> Upstream-commit: f2614f2107c838d014d31b806e3b8a9f1395cb2b Component: engine
29 lines
546 B
Go
29 lines
546 B
Go
package pty
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import (
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"os"
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"os/exec"
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"syscall"
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)
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// Start assigns a pseudo-terminal tty os.File to c.Stdin, c.Stdout,
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// and c.Stderr, calls c.Start, and returns the File of the tty's
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// corresponding pty.
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func Start(c *exec.Cmd) (pty *os.File, err error) {
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pty, tty, err := Open()
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if err != nil {
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return nil, err
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}
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defer tty.Close()
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c.Stdout = tty
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c.Stdin = tty
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c.Stderr = tty
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c.SysProcAttr = &syscall.SysProcAttr{Setctty: true, Setsid: true}
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err = c.Start()
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if err != nil {
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pty.Close()
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return nil, err
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}
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return pty, err
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}
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