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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-01-17 04:11:27 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2009-01-17 04:11:27 +0000 |
commit | 97cbab78dcc43f696077d3bbce1ee35f9d947339 (patch) | |
tree | 7570d3897cbfe9d7b45c077dbf4b760b246243cb /ext/socket/ipsocket.c | |
parent | 8ae8afa649e7f59bfddf60dcb9fb844c02b3dc95 (diff) | |
download | ruby-97cbab78dcc43f696077d3bbce1ee35f9d947339.tar.gz |
* ext/socket: split files for each class.
* 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.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@21619 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/socket/ipsocket.c')
-rw-r--r-- | ext/socket/ipsocket.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/ext/socket/ipsocket.c b/ext/socket/ipsocket.c new file mode 100644 index 0000000000..fe687907b7 --- /dev/null +++ b/ext/socket/ipsocket.c @@ -0,0 +1,246 @@ +/************************************************ + + ipsocket.c - + + created at: Thu Mar 31 12:21:29 JST 1994 + + Copyright (C) 1993-2007 Yukihiro Matsumoto + +************************************************/ + +#include "rubysocket.h" + +struct inetsock_arg +{ + VALUE sock; + struct { + VALUE host, serv; + struct addrinfo *res; + } remote, local; + int type; + int fd; +}; + +static VALUE +inetsock_cleanup(struct inetsock_arg *arg) +{ + if (arg->remote.res) { + freeaddrinfo(arg->remote.res); + arg->remote.res = 0; + } + if (arg->local.res) { + freeaddrinfo(arg->local.res); + arg->local.res = 0; + } + if (arg->fd >= 0) { + close(arg->fd); + } + return Qnil; +} + +static VALUE +init_inetsock_internal(struct inetsock_arg *arg) +{ + int type = arg->type; + struct addrinfo *res; + int fd, status = 0; + const char *syscall = 0; + + arg->remote.res = sock_addrinfo(arg->remote.host, arg->remote.serv, SOCK_STREAM, + (type == INET_SERVER) ? AI_PASSIVE : 0); + /* + * Maybe also accept a local address + */ + + if (type != INET_SERVER && (!NIL_P(arg->local.host) || !NIL_P(arg->local.serv))) { + arg->local.res = sock_addrinfo(arg->local.host, arg->local.serv, SOCK_STREAM, 0); + } + + arg->fd = fd = -1; + for (res = arg->remote.res; res; res = res->ai_next) { + status = ruby_socket(res->ai_family,res->ai_socktype,res->ai_protocol); + syscall = "socket(2)"; + fd = status; + if (fd < 0) { + continue; + } + arg->fd = fd; + if (type == INET_SERVER) { +#if !defined(_WIN32) && !defined(__CYGWIN__) + status = 1; + setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, + (char*)&status, sizeof(status)); +#endif + status = bind(fd, res->ai_addr, res->ai_addrlen); + syscall = "bind(2)"; + } + else { + if (arg->local.res) { + status = bind(fd, arg->local.res->ai_addr, arg->local.res->ai_addrlen); + syscall = "bind(2)"; + } + + if (status >= 0) { + status = ruby_connect(fd, res->ai_addr, res->ai_addrlen, + (type == INET_SOCKS)); + syscall = "connect(2)"; + } + } + + if (status < 0) { + close(fd); + arg->fd = fd = -1; + continue; + } else + break; + } + if (status < 0) { + rb_sys_fail(syscall); + } + + arg->fd = -1; + + if (type == INET_SERVER) + listen(fd, 5); + + /* create new instance */ + return init_sock(arg->sock, fd); +} + +VALUE +init_inetsock(VALUE sock, VALUE remote_host, VALUE remote_serv, + VALUE local_host, VALUE local_serv, int type) +{ + struct inetsock_arg arg; + arg.sock = sock; + arg.remote.host = remote_host; + arg.remote.serv = remote_serv; + arg.remote.res = 0; + arg.local.host = local_host; + arg.local.serv = local_serv; + arg.local.res = 0; + arg.type = type; + arg.fd = -1; + return rb_ensure(init_inetsock_internal, (VALUE)&arg, + inetsock_cleanup, (VALUE)&arg); +} + +/* + * call-seq: + * ipsocket.addr => [address_family, port, hostname, numeric_address] + * + * Returns the local address as an array which contains + * address_family, port, hostname and numeric_address. + * + * hostname is obtained from numeric_address using reverse lookup. + * If ipsocket.do_not_reverse_lookup is true, + * hostname is same as numeric_address. + * + * TCPSocket.open("www.ruby-lang.org", 80) {|sock| + * p sock.addr #=> ["AF_INET", 49429, "hal", "192.168.0.128"] + * } + * + */ +static VALUE +ip_addr(VALUE sock) +{ + rb_io_t *fptr; + struct sockaddr_storage addr; + socklen_t len = sizeof addr; + + GetOpenFile(sock, fptr); + + if (getsockname(fptr->fd, (struct sockaddr*)&addr, &len) < 0) + rb_sys_fail("getsockname(2)"); + return ipaddr((struct sockaddr*)&addr, fptr->mode & FMODE_NOREVLOOKUP); +} + +/* + * call-seq: + * ipsocket.peeraddr => [address_family, port, hostname, numeric_address] + * + * Returns the remote address as an array which contains + * address_family, port, hostname and numeric_address. + * It is defined for connection oritented socket such as TCPSocket. + * + * TCPSocket.open("www.ruby-lang.org", 80) {|sock| + * p sock.peeraddr #=> ["AF_INET", 80, "carbon.ruby-lang.org", "221.186.184.68"] + * } + * + */ +static VALUE +ip_peeraddr(VALUE sock) +{ + rb_io_t *fptr; + struct sockaddr_storage addr; + socklen_t len = sizeof addr; + + GetOpenFile(sock, fptr); + + if (getpeername(fptr->fd, (struct sockaddr*)&addr, &len) < 0) + rb_sys_fail("getpeername(2)"); + return ipaddr((struct sockaddr*)&addr, fptr->mode & FMODE_NOREVLOOKUP); +} + +/* + * call-seq: + * ipsocket.recvfrom(maxlen) => [mesg, ipaddr] + * ipsocket.recvfrom(maxlen, flags) => [mesg, ipaddr] + * + * Receives a message and return the message as a string and + * an address which the message come from. + * + * _maxlen_ is the maximum number of bytes to receive. + * + * _flags_ should be a bitwise OR of Socket::MSG_* constants. + * + * ipaddr is same as IPSocket#{peeraddr,addr}. + * + * u1 = UDPSocket.new + * u1.bind("127.0.0.1", 4913) + * u2 = UDPSocket.new + * u2.send "uuuu", 0, "127.0.0.1", 4913 + * p u1.recvfrom(10) #=> ["uuuu", ["AF_INET", 33230, "localhost", "127.0.0.1"]] + * + */ +static VALUE +ip_recvfrom(int argc, VALUE *argv, VALUE sock) +{ + return s_recvfrom(sock, argc, argv, RECV_IP); +} + +/* + * call-seq: + * IPSocket.getaddress(host) => ipaddress + * + * Lookups IP address of _host_. + * + * IPSocket.getaddress("localhost") #=> "127.0.0.1" + * IPSocket.getaddress("ip6-localhost") #=> "::1" + * + */ +static VALUE +ip_s_getaddress(VALUE obj, VALUE host) +{ + struct sockaddr_storage addr; + struct addrinfo *res = sock_addrinfo(host, Qnil, SOCK_STREAM, 0); + + /* just take the first one */ + memcpy(&addr, res->ai_addr, res->ai_addrlen); + freeaddrinfo(res); + + return make_ipaddr((struct sockaddr*)&addr); +} + +/* + * IPSocket class + */ +void +Init_ipsocket(void) +{ + rb_cIPSocket = rb_define_class("IPSocket", rb_cBasicSocket); + rb_define_method(rb_cIPSocket, "addr", ip_addr, 0); + rb_define_method(rb_cIPSocket, "peeraddr", ip_peeraddr, 0); + rb_define_method(rb_cIPSocket, "recvfrom", ip_recvfrom, -1); + rb_define_singleton_method(rb_cIPSocket, "getaddress", ip_s_getaddress, 1); +} |