[Bug 2763] New: Broken parsing of link-local addresses

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2763

            Bug ID: 2763
           Summary: Broken parsing of link-local addresses
           Product: Portable OpenSSH
           Version: 7.5p1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: uzytkownik2 at gmail.com

I'm trying to connect through veth to link-local address. However ssh
tries to resolve it:

% ssh 'fe80::1' -v -v -v -S none
OpenSSH_7.5p1-hpn14v12lpk, OpenSSL 1.0.2l  25 May 2017
debug1: Reading configuration data /home/mpiechotka/.ssh/config
debug1: /home/mpiechotka/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolving "fe80::1" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to fe80::1 [fe80::1] port 22.
debug1: connect to address fe80::1 port 22: Invalid argument
ssh: connect to host fe80::1 port 22: Invalid argument
% ssh 'fe80::1%xe-<NAME>' -v -v -v -S none
OpenSSH_7.5p1-hpn14v12lpk, OpenSSL 1.0.2l  25 May 2017
debug1: Reading configuration data /home/mpiechotka/.ssh/config
debug1: /home/mpiechotka/.ssh/config line 1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolving "fe80::1%xe-<NAME>" port 22
ssh: Could not resolve hostname fe80::1%xe-<NAME>: Name or service not
known

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