ERL-550: inet:posix/0 type is missing values

[OTP-Maintainer]

Original reporter: okeuday
Affected version: Not Specified
Fixed in version: OTP-21.0
Component: Not Specified
Migrated from: https://bugs.erlang.org/browse/ERL-550

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I have seen that {{gen_udp:send/4}} may return 
{code}
{error, enetunreach}
{code}
though the {{enetunreach}} value is not represented in the {{inet:posix/0}} type specification.  I saw this on a multicast socket that used the options:
{code}
[{ip, Interface}, {multicast_ttl, TTL}, {multicast_loop, true}]
{code}
There may be other posix errors that are not yet in the {{inet:posix/0}} type specification.

[OTP-Maintainer]

raimo said:

Yes.  This seems to need a thorough overhaul since the {{inet:posix/0}} type definition is hardly even close by using type {{file:posix/0}}...

[OTP-Maintainer]

raimo said:

I have created an internal ticket OTP-14019 and added a topic branch to proposed updates for our master branch.

I kept the reference from {{inet:posix/0}} to {{file:posix/0}}, since socket operations concerning sendfile and AF_UNIX may return many file errors.

So I have added {{ebadmsg | edeadlk | edeadlock | eftype | emultihop | enobufs | enolck | enolink | enosr | enostr | enosys | eopnotsupp | eoverflow | erange | etxtbsy}} to {{file:posix/0}}, and {{eaddrinuse | eaddrnotavail | eafnosupport | ealready | econnaborted | econnrefused | econnreset | edestaddrreq | ehostdown | ehostunreach | einprogress | eisconn | emsgsize | enetdown | enetunreach | enopkg | enoprotoopt | enotconn | enotty | enotsock | eproto | eprotonosupport | eprototype | esocktnosupport | etimedout | ewouldblock}} to {{inet:posix/0}}.

I hope I have not missed any... :-)

[OTP-Maintainer]

okeuday said:

Thank you for adding that.  That list looks like it should cover everything file/socket related.

[OTP-Maintainer]

raimo said:

I hope so...  Unfortunately I found 78 error codes in erts/emulator/beam/erl_posix_str.c that are neither i {{file:posix/0}} nor in {{inet:posix/0}}.  Some maybe should.

Anyway, merged to master.