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Code Issues Releases Wiki Activity

Use IPv6 address if resolving fails

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This commit is contained in:
M66B 2021-02-24 08:32:49 +01:00
parent 4b0155ac08
commit 0dad701210
1 changed files with 12 additions and 8 deletions
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20
app/src/main/java/eu/faircode/email/EmailService.java
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@ -462,14 +462,18 @@ public class EmailService implements AutoCloseable {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean prefer_ip4 = prefs.getBoolean("prefer_ip4", true);
if (prefer_ip4 && main instanceof Inet6Address) {
for (InetAddress iaddr : InetAddress.getAllByName(host))
if (iaddr instanceof Inet4Address) {
main = iaddr;
EntityLog.log(context, "Preferring=" + main);
break;
}
}
if (prefer_ip4 &&
main instanceof Inet6Address)
try {
for (InetAddress iaddr : InetAddress.getAllByName(host))
if (iaddr instanceof Inet4Address) {
main = iaddr;
EntityLog.log(context, "Preferring=" + main);
break;
}
} catch (UnknownHostException ex) {
Log.w(ex);
}
EntityLog.log(context, "Connecting to " + main);
_connect(main, port, require_id, user, authenticator, factory);