"invalid peer address" with ipv6 in swarm peer connect

[dokterbob]

Version/Platform/Processor information (from ipfs version --all): 0.4.2
Type (bug, feature, meta, test failure, question): bug
Area (api, commands, daemon, fuse, etc): commands
Priority (from P0: functioning, to P4: operations on fire): P2

Description:
Explicitly connecting to peers works fine for ip4 addresses but with ip6 it yields the following result:

$ ipfs swarm peer connect /ip6/<ip6_addr>/tcp/4001/ipfs/<peer_id>
Error: invalid peer address: invalid multiaddr, must begin with /

The error results from /core/commands/swarm.go#L358, the parse error from which originates from thirdparty/ipfsaddr/ipfsaddr.go#L57 which again reaches into go-multiaddr, which seems to be maintained here - and which suggests this is a dependency issue.

However, actually looking at the code it seems this is just a regular string split and something might be fishy about the command argument parser. (This is about as far as I'm willing to follow down this rabbit's hole, for now.)

[whyrusleeping]

@lgierth wanna see if you can figure this one out?

[victorb]

Might be related to using go-ipfs on windows, see https://discuss.ipfs.io/t/ipfs-swarm-connect-command-returns-an-error/696/7

Also another related issue: #3296

[ghost]

I mean, it would be useful to see the actual multiaddr that caused this error ;)

[victorb]

@lgierth it seems related to the environment and / rather than the actual IP/port in the multiaddr.

[whyrusleeping]

Ah yeah, as @Kubuxu labeled, this is a problem with arguments starting with '/' in windows. ref #4190

[Kubuxu]

Closing in favour of #4190.