* ext/socket/raddrinfo.c (init_unix_addrinfo): support the longest
path in sockaddr_un.
(inspect_sockaddr): ditto.
(addrinfo_mdump): ditto.
(addrinfo_mload): ditto.
(rsock_unixpath_str): new function.
(rsock_unixpath): removed.
(rsock_unixaddr): use rsock_unixpath_str.
* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
path in sockaddr_un.
(sock_s_unpack_sockaddr_un): ditto.
(sock_s_gethostbyaddr): unused variable removed.
* ext/socket/unixsocket.c (rsock_init_unixsock): support the longest
path in sockaddr_un.
* ext/socket/rubysocket.h (rsock_unixpath_str): declared.
(rsock_unixpath): removed.
* test/socket/test_unix.rb: comment out test_nul because abstract unix
sockets may contain NULs.
* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
path in sockaddr_un, really.
reported by nagachika.
http://d.hatena.ne.jp/nagachika/20120426/ruby_trunk_changes_35474_35476
* ext/socket/raddrinfo.c (rsock_unixpath_len, init_unix_addrinfo),
ext/socket/unixsocket.c (unixsock_connect_internal,
rsock_init_unixsock): calculate the correct address length of
an abstract socket. Without this fix, sizeof(struct sockaddr_un)
is specified as the length of an abstract socket for bind(2) or
connect(2), so the address of the socket is filled with extra NUL
characters. See unix(7) for details.
* ext/socket/lib/socket.rb (unix_server_socket): don't access the
file system if the platform is Linux and path starts with NUL,
which means that the socket is an abstract socket.
* test/socket/test_unix.rb: related test.
* ext/socket/raddrinfo (rsock_unix_sockaddr_len): renamed from
rsock_unixpath_len, because it returns not the length of the path,
but the length of a socket address for the path.
* ext/socket/socket.c (sock_s_pack_sockaddr_un): calculate the
correct address length of an abstract socket.
* test/socket/test_unix.rb: related test.
* ext/socket/unixsocket.c (rsock_init_unixsock): use rb_inspect()
because rb_sys_fail_str() fails if its argument contains NUL.
* test/socket/test_unix.rb: related test.
* ext/socket/raddrinfo.c (rsock_unix_sockaddr_len): return
sizeof(sa_familiy_t) if path is empty. see "Autobind Feature" in
unix(7) for details.
* ext/socket/lib/socket.rb (unix_socket_abstract_name?): treat an
empty path as an abstract name.
* test/socket/test_unix.rb: related test.
Added by usa (Usaku NAKAMURA) about 11 years ago
merge revision(s) 35474,35479,38939,38943,38963,38991,38994: [Backport #7786]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@39096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e