mirror of
https://blitiri.com.ar/repos/chasquid
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Alberto Bertogli
8d763f450d
This is a follow-up on the `go fix` run in commit
0210c5fd92.
That commit recorded the automated updates.
This one applies further simplifications that are mechanical and do not
involve logic changes, but are outside of what `go fix` did.
It also removes some now-obsolete comments and statements.
36 lines
856 B
Go
36 lines
856 B
Go
// Support for overriding DNS lookups, for testing purposes.
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// This is only used in tests, when the "dnsoverride" tag is active.
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//
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//go:build dnsoverride
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package main
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import (
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"context"
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"flag"
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"net"
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"time"
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)
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var (
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dnsAddr = flag.String("testing__dns_addr", "127.0.0.1:9053",
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"DNS server address to use, for testing purposes only")
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)
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var dialer = &net.Dialer{
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// We're going to talk to localhost, so have a short timeout so we fail
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// fast. Otherwise the callers might hang indefinitely when trying to
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// dial the DNS server.
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Timeout: 2 * time.Second,
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}
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func dial(ctx context.Context, network, address string) (net.Conn, error) {
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return dialer.DialContext(ctx, network, *dnsAddr)
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}
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func init() {
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// Override the resolver to talk with our local server for testing.
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net.DefaultResolver.PreferGo = true
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net.DefaultResolver.Dial = dial
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}
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