tun/netstack: check error returned by SetDeadline()

Signed-off-by: Alexander Neumann <alexander.neumann@redteam-pentesting.de>
[Jason: don't wrap deadline error.]
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Alexander Neumann 2022-03-04 10:38:10 +01:00 committed by Jason A. Donenfeld
parent 2cec4d1a62
commit ae6bc4dd64

View File

@ -690,7 +690,10 @@ func (tnet *Net) exchange(ctx context.Context, server netip.Addr, q dnsmessage.Q
return dnsmessage.Parser{}, dnsmessage.Header{}, err
}
if d, ok := ctx.Deadline(); ok && !d.IsZero() {
c.SetDeadline(d)
err := c.SetDeadline(d)
if err != nil {
return dnsmessage.Parser{}, dnsmessage.Header{}, err
}
}
var p dnsmessage.Parser
var h dnsmessage.Header