* ext/socket: always operate length of socket addess companion with
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.
* ext/socket/ipsocket.c (ip_s_getaddress): Don't access freed memory.
* ext/socket/socket.c (sock_s_getnameinfo): Save errno for EAI_SYSTEM.
Reported by Saravana kumar. [ruby-core:61820] [Bug #9697]
Fixed by Heesob Park. [ruby-core:61868]
merge revision(s) 39239,45045,45530: [Backport #9697]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@46510 b2dd03c8-39d4-4d8f-98ff-823fe69b080e