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authorHans Nilsson <[email protected]>2017-03-29 13:13:43 +0200
committerHans Nilsson <[email protected]>2017-04-07 10:23:37 +0200
commit3bed79615b9702f8335dbe75295c6610b097175e (patch)
tree997ab746328d78bf503564fc0dfc1eb179ef96b8 /lib/ssh/src
parent92bdf870ec6509eb958535780b8655206478f7db (diff)
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ssh: remove dead code and add comments
Diffstat (limited to 'lib/ssh/src')
-rw-r--r--lib/ssh/src/ssh.erl55
1 files changed, 8 insertions, 47 deletions
diff --git a/lib/ssh/src/ssh.erl b/lib/ssh/src/ssh.erl
index 680047dffd..aff143dc26 100644
--- a/lib/ssh/src/ssh.erl
+++ b/lib/ssh/src/ssh.erl
@@ -416,66 +416,27 @@ handle_daemon_args(IPaddr, Opts) when is_tuple(IPaddr) ->
IP -> {IPaddr, [{ip,IPaddr}|Opts--[{ip,IP}]]} %% Backward compatibility
end;
-handle_daemon_args(Address, Opts) when is_list(Address) ; is_atom(Address) ->
+handle_daemon_args(Address, Opts) when is_list(Address) ; % IP address in string or a domain
+ is_atom(Address) % domains could be atoms in inet
+ ->
IP = proplists:get_value(ip, Opts),
case inet:parse_strict_address(Address) of
+ %% check if Address is an IP-address
{ok, IP} -> {IP, Opts};
{ok, OtherIP} -> {OtherIP, [{ip,OtherIP}|Opts--[{ip,IP}]]};
_ ->
+ %% Not an IP-address. Check if it is a host name:
case inet:getaddr(Address, family(Opts)) of
{ok, IP} -> {Address, Opts};
{ok, OtherIP} -> {Address, [{ip,OtherIP}|Opts--[{ip,IP}]]};
- _ -> {Address, Opts}
- end
- end.
-
-
--ifdef(hulahopp).
-%% Check the Address parameter and set an ip-option in some cases. The
-%% Address parameter is left unchanged because ssh:stop_listener and
-%% ssh:stop_daemon needs to find the system supervisor by name
-
-handle_daemon_args(any, Opts) ->
- %% Listen to 0.0.0.0. The caller may have set an ip-option. Trust
- %% that one in such a case.
- {any, Opts};
-
-handle_daemon_args(loopback, Opts) ->
- %% Listen to a loopback address. Let the underlying layers decide
- %% in case the caller hasn't set the ip-option.
- {loopback, ensure_ip_option(loopback,Opts)};
-
-handle_daemon_args(IP, Opts) when is_tuple(IP) ->
- %% An IP address in Erlang tuple format:
- {IP, ensure_ip_option(IP,Opts)};
-
-handle_daemon_args(Address, Opts) when is_list(Address) ; is_atom(Address) ->
- %% This might be a host name, an FQDN, an IP address in string format ("127.1.1.1")
- %% etc. It might be a string or an atom since inet:hostname() is defined in that way
- case inet:parse_strict_address(Address) of
- {ok, IP} ->
- {Address, ensure_ip_option(IP,Opts)};
- _ ->
- %% Try to lookup as a hostname:
- case inet:getaddr(Address, family(Opts)) of
- {ok, IP} ->
- {Address, ensure_ip_option(IP,Opts)};
_ ->
- %% Give up and let the underlying system handle this
+ %% Not a Host name and not an IP address, let
+ %% inet and the OS later figure out what it
+ %% could be
{Address, Opts}
end
end.
-
-%% Add an ip-option if not already present.
-ensure_ip_option(Address, Opts) ->
- case proplists:get_value(ip, Opts) of
- undefined -> [{ip,Address}|Opts];
- _ -> Opts
- end.
--endif.
-
-
%% Has the caller indicated the address family?
family(Opts) ->
family(Opts, inet).