(sockopt_inspect): Use inspect_tcp_info.
* ext/socket/extconf.rb: Check tcp_info related things.
* ext/socket/rubysocket.h: Include netinet/tcp_fsm.h if available.
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IP_MULTICAST_LOOP and IP_MULTICAST_TTL socket option to follow
the original multicast implementation.
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* ext/socket/option.c (NUM2SOCKOPT, sockopt_value): revert because
these names are confusing. [ruby-dev:47903]
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option takes a byte on OpenBSD.
Fixed by Jeremy Evans. [ruby-core:59496] [Bug #9350]
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s/ip/ipv4/g because they are ipv4 functions.
(there's a policy that the name "ip" is for methods which supports
both ipv4 and ipv6)
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whose value's is byte.
* ext/socket/option.c (sockopt_byte): getter for above.
* ext/socket/option.c (inspect_byte): inspect for above.
* ext/socket/option.c (sockopt_s_ip_multicast_loop): constructor of
the sockopt whose optname is IP_MULTICAST_LOOP.
* ext/socket/option.c (sockopt_ip_multicast_loop): getter for above.
* ext/socket/option.c (sockopt_s_ip_multicast_ttl): constructor of
the sockopt whose optname is IP_MULTICAST_TTL.
* ext/socket/option.c (sockopt_ip_multicast_ttl): getter for above.
* ext/socket/option.c (sockopt_inspect): use above.
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* ext/socket/option.c (inet_ntop): use rb_w32_inet_ntop, instead of
inet_ntop directly, which is unavailable on older version Windows.
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* ext/socket/ancdata.c (nogvl_sendmsg_func): explicitly cast via VALUE
to suppress a warning on mingw64.
* ext/socket/option.c: declare inet_ntop() for mingw64 which has the
function but lacks arpa/inet.h.
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environments without if_indextoname.
(inspect_ipv6_multicast_if): new function to inspect
IPV6_MULTICAST_IF.
Socket::Option.new(:INET6, :IPV6, :MULTICAST_IF,
[2].pack("I!")).inspect is
"#<Socket::Option: INET6 IPV6 MULTICAST_IF eth0>".
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* ext/socket/option.c: yesterday's akr's commits destroyed the build of
some unrelated platforms (such as Windows).
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to inspect struct ip_mreq and struct ip_mreqn for
IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP.
Socket::Option.new(:INET, :IP, :ADD_MEMBERSHIP,
[239,255,99,81, 0,0,0,0].pack("CCCCCCCC")).inspect is now
"#<Socket::Option: INET IP ADD_MEMBERSHIP 239.255.99.81 0.0.0.0>".
(inspect_ipv4_multicast_if): new function to inspect struct in_addr
and struct ip_mreqn for IP_MULTICAST_IF.
Socket::Option.new(:INET, :IP, :MULTICAST_IF,
[192,168,0,7].pack("CCCC")).inspect is now
"#<Socket::Option: INET IP MULTICAST_IF 192.168.0.7>".
* ext/socket/extconf.rb: check struct ip_mreq and struct ip_mreqn.
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(sockopt_optname): extracted from sockopt_optname_m.
(sockopt_data): apply StringValue.
(sockopt_s_linger): new method.
(sockopt_linger): new method.
(inspect_linger): show onoff value if it is neither 0 nor 1.
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