When making an outgoing TCP or UDP connection, set AI_ADDRCONFIG in the
hints we send to getaddrinfo(3) (if supported). This will prompt the
resolver to _NOT_ issue A or AAAA queries if the system does not
actually have an IPv4 or IPv6 address (respectively).
This makes outgoing connections marginally more efficient on
non-dual-stack systems, since we don't have to try connecting to an
address which can't possibly work.
More importantly, however, this works around a race condition present
in some older versions of glibc on aarch64 where it could accidently
send the two outgoing DNS queries with the same DNS txnid, and get
confused when receiving the responses. This manifests as outgoing
connections sometimes taking 5 seconds (the DNS timeout before retry) to
be made.
Fixes#19144
getaddrinfo_a() gets stuck after fork().
To avoid this, we need 1 second sleep to wait for internal
worker threads of getaddrinfo_a() to be finished, but that is unacceptable.
[Bug #17220] [Feature #17134] [Feature #17187]
After 5e86b005c0, I now think ANYARGS is
dangerous and should be extinct. This commit deletes ANYARGS from
rb_ensure, which also revealed many arity / type mismatches.
* ext/socket/ipsocket.c (init_inetsock_internal): preserve errno
before other library calls and use rb_syserr_fail.
[ruby-core:68531] [Bug #10975]
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family for local address wihch is different to the remote
address if no other choice.
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addresses which address family is different to remote address.
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socket address.
* ext/socket/rubysocket.h (rsock_make_ipaddr): add an argument for
socket address length.
(rsock_ipaddr): ditto.
* ext/socket/ipsocket.c (ip_addr): pass length to rsock_ipaddr.
(ip_peeraddr): ditto.
(ip_s_getaddress): pass length to rsock_make_ipaddr.
* ext/socket/socket.c (make_addrinfo): pass length to rsock_ipaddr.
(sock_s_getnameinfo): pass actual address length to rb_getnameinfo.
(sock_s_unpack_sockaddr_in): pass length to rsock_make_ipaddr.
* ext/socket/init.c (rsock_s_recvfrom): pass length to rsock_ipaddr.
(rsock_s_recvfrom_nonblock): ditto.
* ext/socket/tcpsocket.c (tcp_sockaddr): pass length to
rsock_make_ipaddr.
* ext/socket/raddrinfo.c (make_ipaddr0): add an argument for socket
address length. pass the length to rb_getnameinfo.
(rsock_ipaddr): ditto.
(rsock_make_ipaddr): add an argument for socket address length.
pass the length to make_ipaddr0.
(make_inetaddr): pass length to make_ipaddr0.
a local variable renamed.
(host_str): a local variable renamed.
(port_str): ditto.
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ext/socket/unixsocket.c (rsock_init_unixsock): check the result of
listen(2). based on a patch from Mike Pomraning. [ruby-core:23698]
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(rsock_addrinfo): renamed from sock_addrinfo.
(rsock_getaddrinfo): renamed from sock_getaddrinfo.
(rsock_socket): renamed from ruby_socket.
(rsock_sock_s_socketpair): renamed from sock_s_socketpair.
(rsock_connect): renamed from ruby_connect.
* ext/socket/socket.c (sock_listen): make it static.
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* ext/socket/rubysocket.h: common header.
* ext/socket/basicsocket.c: new file for BasicSocket.
* ext/socket/ipsocket.c: new file for IPSocket.
* ext/socket/tcpsocket.c: new file for TCPSocket.
* ext/socket/tcpserver.c: new file for TCPServer.
* ext/socket/sockssocket.c: new file for SOCKSSocket.
* ext/socket/udpsocket.c: new file for UDPSocket.
* ext/socket/unixsocket.c: new file for UNIXSocket.
* ext/socket/unixserver.c: new file for UNIXServer.
* ext/socket/socket.c: now for Socket.
* ext/socket/raddrinfo.c: new file for AddrInfo and name resolution.
* ext/socket/constants.c: new file for constants.
* ext/socket/init.c: new file for utilities.
* ext/socket/mkconstants.rb: export *_to_int.
* ext/socket/extconf.rb: add new object files.
* ext/socket/depend: add dependencies for new files.
* ext/.document: add new files.
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