diff options
Diffstat (limited to 'trunk/ext/socket/socket.c')
| -rw-r--r-- | trunk/ext/socket/socket.c | 3716 |
1 files changed, 0 insertions, 3716 deletions
diff --git a/trunk/ext/socket/socket.c b/trunk/ext/socket/socket.c deleted file mode 100644 index b3d21f2230..0000000000 --- a/trunk/ext/socket/socket.c +++ /dev/null @@ -1,3716 +0,0 @@ -/************************************************ - - socket.c - - - $Author$ - created at: Thu Mar 31 12:21:29 JST 1994 - - Copyright (C) 1993-2007 Yukihiro Matsumoto - -************************************************/ - -#include "ruby/ruby.h" -#include "ruby/io.h" -#include "ruby/signal.h" -#include "ruby/util.h" -#include <stdio.h> -#include <sys/types.h> - -#ifdef HAVE_UNISTD_H -#include <unistd.h> -#endif - -#ifdef HAVE_SYS_UIO_H -#include <sys/uio.h> -#endif - -#ifdef HAVE_XTI_H -#include <xti.h> -#endif - -#ifndef _WIN32 -#if defined(__BEOS__) && !defined(__HAIKU__) -# include <net/socket.h> -#else -# include <sys/socket.h> -#endif -#include <netinet/in.h> -#ifdef HAVE_NETINET_IN_SYSTM_H -# include <netinet/in_systm.h> -#endif -#ifdef HAVE_NETINET_TCP_H -# include <netinet/tcp.h> -#endif -#ifdef HAVE_NETINET_UDP_H -# include <netinet/udp.h> -#endif -#ifdef HAVE_ARPA_INET_H -# include <arpa/inet.h> -#endif -#include <netdb.h> -#endif -#include <errno.h> -#ifdef HAVE_SYS_UN_H -#include <sys/un.h> -#endif - -#if defined(HAVE_FCNTL) -#ifdef HAVE_SYS_SELECT_H -#include <sys/select.h> -#endif -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif -#ifdef HAVE_SYS_TIME_H -#include <sys/time.h> -#endif -#ifdef HAVE_FCNTL_H -#include <fcntl.h> -#endif -#endif -#ifndef EWOULDBLOCK -#define EWOULDBLOCK EAGAIN -#endif -#ifndef HAVE_GETADDRINFO -# include "addrinfo.h" -#endif -#include "sockport.h" - -static int do_not_reverse_lookup = 0; -#define FMODE_NOREVLOOKUP 0x100 - -VALUE rb_cBasicSocket; -VALUE rb_cIPSocket; -VALUE rb_cTCPSocket; -VALUE rb_cTCPServer; -VALUE rb_cUDPSocket; -#ifdef AF_UNIX -VALUE rb_cUNIXSocket; -VALUE rb_cUNIXServer; -#endif -VALUE rb_cSocket; - -static VALUE rb_eSocket; - -#ifdef SOCKS -VALUE rb_cSOCKSSocket; -#ifdef SOCKS5 -#include <socks.h> -#else -void SOCKSinit(); -int Rconnect(); -#endif -#endif - -#define BLOCKING_REGION(func, arg) (long)rb_thread_blocking_region((func), (arg), RB_UBF_DFL, 0) - -#define INET_CLIENT 0 -#define INET_SERVER 1 -#define INET_SOCKS 2 - -#ifndef HAVE_SOCKADDR_STORAGE -/* - * RFC 2553: protocol-independent placeholder for socket addresses - */ -#define _SS_MAXSIZE 128 -#define _SS_ALIGNSIZE (sizeof(double)) -#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(unsigned char) * 2) -#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(unsigned char) * 2 - \ - _SS_PAD1SIZE - _SS_ALIGNSIZE) - -struct sockaddr_storage { -#ifdef HAVE_SA_LEN - unsigned char ss_len; /* address length */ - unsigned char ss_family; /* address family */ -#else - unsigned short ss_family; -#endif - char __ss_pad1[_SS_PAD1SIZE]; - double __ss_align; /* force desired structure storage alignment */ - char __ss_pad2[_SS_PAD2SIZE]; -}; -#endif - -#if defined(INET6) && (defined(LOOKUP_ORDER_HACK_INET) || defined(LOOKUP_ORDER_HACK_INET6)) -#define LOOKUP_ORDERS 3 -static int lookup_order_table[LOOKUP_ORDERS] = { -#if defined(LOOKUP_ORDER_HACK_INET) - PF_INET, PF_INET6, PF_UNSPEC, -#elif defined(LOOKUP_ORDER_HACK_INET6) - PF_INET6, PF_INET, PF_UNSPEC, -#else - /* should not happen */ -#endif -}; - -static int -ruby_getaddrinfo(char *nodename, char *servname, - struct addrinfo *hints, struct addrinfo **res) -{ - struct addrinfo tmp_hints; - int i, af, error; - - if (hints->ai_family != PF_UNSPEC) { - return getaddrinfo(nodename, servname, hints, res); - } - - for (i = 0; i < LOOKUP_ORDERS; i++) { - af = lookup_order_table[i]; - MEMCPY(&tmp_hints, hints, struct addrinfo, 1); - tmp_hints.ai_family = af; - error = getaddrinfo(nodename, servname, &tmp_hints, res); - if (error) { - if (tmp_hints.ai_family == PF_UNSPEC) { - break; - } - } - else { - break; - } - } - - return error; -} -#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo((node),(serv),(hints),(res)) -#endif - -#if defined(_AIX) -static int -ruby_getaddrinfo__aix(char *nodename, char *servname, - struct addrinfo *hints, struct addrinfo **res) -{ - int error = getaddrinfo(nodename, servname, hints, res); - struct addrinfo *r; - if (error) - return error; - for (r = *res; r != NULL; r = r->ai_next) { - if (r->ai_addr->sa_family == 0) - r->ai_addr->sa_family = r->ai_family; - if (r->ai_addr->sa_len == 0) - r->ai_addr->sa_len = r->ai_addrlen; - } - return 0; -} -#undef getaddrinfo -#define getaddrinfo(node,serv,hints,res) ruby_getaddrinfo__aix((node),(serv),(hints),(res)) -static int -ruby_getnameinfo__aix(sa, salen, host, hostlen, serv, servlen, flags) - const struct sockaddr *sa; - size_t salen; - char *host; - size_t hostlen; - char *serv; - size_t servlen; - int flags; -{ - struct sockaddr_in6 *sa6; - u_int32_t *a6; - - if (sa->sa_family == AF_INET6) { - sa6 = (struct sockaddr_in6 *)sa; - a6 = sa6->sin6_addr.u6_addr.u6_addr32; - - if (a6[0] == 0 && a6[1] == 0 && a6[2] == 0 && a6[3] == 0) { - strncpy(host, "::", hostlen); - snprintf(serv, servlen, "%d", sa6->sin6_port); - return 0; - } - } - return getnameinfo(sa, salen, host, hostlen, serv, servlen, flags); -} -#undef getnameinfo -#define getnameinfo(sa, salen, host, hostlen, serv, servlen, flags) \ - ruby_getnameinfo__aix((sa), (salen), (host), (hostlen), (serv), (servlen), (flags)) -#ifndef CMSG_SPACE -# define CMSG_SPACE(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + _CMSG_ALIGN(len)) -#endif -#ifndef CMSG_LEN -# define CMSG_LEN(len) (_CMSG_ALIGN(sizeof(struct cmsghdr)) + (len)) -#endif -#endif - -#ifdef __BEOS__ -#undef close -#define close closesocket -#endif - -static VALUE -init_sock(VALUE sock, int fd) -{ - rb_io_t *fp; - - MakeOpenFile(sock, fp); - fp->fd = fd; - fp->mode = FMODE_READWRITE|FMODE_DUPLEX; -#if defined(_WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(__human68k__) || defined(__EMX__) - fp->mode |= FMODE_BINMODE; -#endif - if (do_not_reverse_lookup) { - fp->mode |= FMODE_NOREVLOOKUP; - } - rb_io_synchronized(fp); - - return sock; -} - -static VALUE -bsock_s_for_fd(VALUE klass, VALUE fd) -{ - rb_io_t *fptr; - VALUE sock = init_sock(rb_obj_alloc(klass), NUM2INT(fd)); - - GetOpenFile(sock, fptr); - - return sock; -} - -static VALUE -bsock_shutdown(int argc, VALUE *argv, VALUE sock) -{ - VALUE howto; - int how; - rb_io_t *fptr; - - if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) { - rb_raise(rb_eSecurityError, "Insecure: can't shutdown socket"); - } - rb_scan_args(argc, argv, "01", &howto); - if (howto == Qnil) - how = 2; - else { - how = NUM2INT(howto); - if (how < 0 || 2 < how) { - rb_raise(rb_eArgError, "`how' should be either 0, 1, 2"); - } - } - GetOpenFile(sock, fptr); - if (shutdown(fptr->fd, how) == -1) - rb_sys_fail(0); - - return INT2FIX(0); -} - -static VALUE -bsock_close_read(VALUE sock) -{ - rb_io_t *fptr; - - if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) { - rb_raise(rb_eSecurityError, "Insecure: can't close socket"); - } - GetOpenFile(sock, fptr); - shutdown(fptr->fd, 0); - if (!(fptr->mode & FMODE_WRITABLE)) { - return rb_io_close(sock); - } - fptr->mode &= ~FMODE_READABLE; - - return Qnil; -} - -static VALUE -bsock_close_write(VALUE sock) -{ - rb_io_t *fptr; - - if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) { - rb_raise(rb_eSecurityError, "Insecure: can't close socket"); - } - GetOpenFile(sock, fptr); - if (!(fptr->mode & FMODE_READABLE)) { - return rb_io_close(sock); - } - shutdown(fptr->fd, 1); - fptr->mode &= ~FMODE_WRITABLE; - - return Qnil; -} - -/* - * Document-method: setsockopt - * call-seq: setsockopt(level, optname, optval) - * - * Sets a socket option. These are protocol and system specific, see your - * local sytem documentation for details. - * - * === Parameters - * * +level+ is an integer, usually one of the SOL_ constants such as - * Socket::SOL_SOCKET, or a protocol level. - * * +optname+ is an integer, usually one of the SO_ constants, such - * as Socket::SO_REUSEADDR. - * * +optval+ is the value of the option, it is passed to the underlying - * setsockopt() as a pointer to a certain number of bytes. How this is - * done depends on the type: - * - Fixnum: value is assigned to an int, and a pointer to the int is - * passed, with length of sizeof(int). - * - true or false: 1 or 0 (respectively) is assigned to an int, and the - * int is passed as for a Fixnum. Note that +false+ must be passed, - * not +nil+. - * - String: the string's data and length is passed to the socket. - * - * === Examples - * - * Some socket options are integers with boolean values, in this case - * #setsockopt could be called like this: - * sock.setsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR, true) - * - * Some socket options are integers with numeric values, in this case - * #setsockopt could be called like this: - * sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_TTL, 255) - * - * Option values may be structs. Passing them can be complex as it involves - * examining your system headers to determine the correct definition. An - * example is an +ip_mreq+, which may be defined in your system headers as: - * struct ip_mreq { - * struct in_addr imr_multiaddr; - * struct in_addr imr_interface; - * }; - * - * In this case #setsockopt could be called like this: - * optval = IPAddr.new("224.0.0.251") + Socket::INADDR_ANY - * sock.setsockopt(Socket::IPPROTO_IP, Socket::IP_ADD_MEMBERSHIP, optval) - * -*/ -static VALUE -bsock_setsockopt(VALUE sock, VALUE lev, VALUE optname, VALUE val) -{ - int level, option; - rb_io_t *fptr; - int i; - char *v; - int vlen; - - rb_secure(2); - level = NUM2INT(lev); - option = NUM2INT(optname); - - switch (TYPE(val)) { - case T_FIXNUM: - i = FIX2INT(val); - goto numval; - case T_FALSE: - i = 0; - goto numval; - case T_TRUE: - i = 1; - numval: - v = (char*)&i; vlen = sizeof(i); - break; - default: - StringValue(val); - v = RSTRING_PTR(val); - vlen = RSTRING_LEN(val); - break; - } - -#define rb_sys_fail_path(path) rb_sys_fail(NIL_P(path) ? 0 : RSTRING_PTR(path)) - - GetOpenFile(sock, fptr); - if (setsockopt(fptr->fd, level, option, v, vlen) < 0) - rb_sys_fail_path(fptr->pathv); - - return INT2FIX(0); -} - -/* - * Document-method: getsockopt - * call-seq: getsockopt(level, optname) - * - * Gets a socket option. These are protocol and system specific, see your - * local sytem documentation for details. The option is returned as - * a String with the data being the binary value of the socket option. - * - * === Parameters - * * +level+ is an integer, usually one of the SOL_ constants such as - * Socket::SOL_SOCKET, or a protocol level. - * * +optname+ is an integer, usually one of the SO_ constants, such - * as Socket::SO_REUSEADDR. - * - * === Examples - * - * Some socket options are integers with boolean values, in this case - * #getsockopt could be called like this: - * optval = sock.getsockopt(Socket::SOL_SOCKET,Socket::SO_REUSEADDR) - * optval = optval.unpack "i" - * reuseaddr = optval[0] == 0 ? false : true - * - * Some socket options are integers with numeric values, in this case - * #getsockopt could be called like this: - * optval = sock.getsockopt(Socket::IPPROTO_IP, Socket::IP_TTL) - * ipttl = optval.unpack("i")[0] - * - * Option values may be structs. Decoding them can be complex as it involves - * examining your system headers to determine the correct definition. An - * example is a +struct linger+, which may be defined in your system headers - * as: - * struct linger { - * int l_onoff; - * int l_linger; - * }; - * - * In this case #getsockopt could be called like this: - * optval = sock.getsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER) - * onoff, linger = optval.unpack "ii" -*/ -static VALUE -bsock_getsockopt(VALUE sock, VALUE lev, VALUE optname) -{ -#if !defined(__BEOS__) - int level, option; - socklen_t len; - char *buf; - rb_io_t *fptr; - - level = NUM2INT(lev); - option = NUM2INT(optname); - len = 256; - buf = ALLOCA_N(char,len); - - GetOpenFile(sock, fptr); - if (getsockopt(fptr->fd, level, option, buf, &len) < 0) - rb_sys_fail_path(fptr->pathv); - - return rb_str_new(buf, len); -#else - rb_notimplement(); -#endif -} - -static VALUE -bsock_getsockname(VALUE sock) -{ - char buf[1024]; - socklen_t len = sizeof buf; - rb_io_t *fptr; - - GetOpenFile(sock, fptr); - if (getsockname(fptr->fd, (struct sockaddr*)buf, &len) < 0) - rb_sys_fail("getsockname(2)"); - return rb_str_new(buf, len); -} - -static VALUE -bsock_getpeername(VALUE sock) -{ - char buf[1024]; - socklen_t len = sizeof buf; - rb_io_t *fptr; - - GetOpenFile(sock, fptr); - if (getpeername(fptr->fd, (struct sockaddr*)buf, &len) < 0) - rb_sys_fail("getpeername(2)"); - return rb_str_new(buf, len); -} - -struct send_arg { - int fd, flags; - VALUE mesg; - struct sockaddr *to; - socklen_t tolen; -}; - -static VALUE -sendto_blocking(void *data) -{ - struct send_arg *arg = data; - VALUE mesg = arg->mesg; - return (VALUE)sendto(arg->fd, RSTRING_PTR(mesg), RSTRING_LEN(mesg), - arg->flags, arg->to, arg->tolen); -} - -static VALUE -send_blocking(void *data) -{ - struct send_arg *arg = data; - VALUE mesg = arg->mesg; - return (VALUE)send(arg->fd, RSTRING_PTR(mesg), RSTRING_LEN(mesg), - arg->flags); -} - -static VALUE -bsock_send(int argc, VALUE *argv, VALUE sock) -{ - struct send_arg arg; - VALUE flags, to; - rb_io_t *fptr; - int n; - rb_blocking_function_t *func; - - rb_secure(4); - rb_scan_args(argc, argv, "21", &arg.mesg, &flags, &to); - - StringValue(arg.mesg); - if (!NIL_P(to)) { - StringValue(to); - to = rb_str_new4(to); - arg.to = (struct sockaddr *)RSTRING_PTR(to); - arg.tolen = RSTRING_LEN(to); - func = sendto_blocking; - } - else { - func = send_blocking; - } - GetOpenFile(sock, fptr); - arg.fd = fptr->fd; - arg.flags = NUM2INT(flags); - while (rb_thread_fd_writable(arg.fd), - (n = (int)BLOCKING_REGION(func, &arg)) < 0) { - if (rb_io_wait_writable(arg.fd)) { - continue; - } - rb_sys_fail("send(2)"); - } - return INT2FIX(n); -} - -static VALUE -bsock_do_not_reverse_lookup(VALUE sock) -{ - rb_io_t *fptr; - - GetOpenFile(sock, fptr); - return (fptr->mode & FMODE_NOREVLOOKUP) ? Qtrue : Qfalse; -} - -static VALUE -bsock_do_not_reverse_lookup_set(VALUE sock, VALUE state) -{ - rb_io_t *fptr; - - rb_secure(4); - GetOpenFile(sock, fptr); - if (RTEST(state)) { - fptr->mode |= FMODE_NOREVLOOKUP; - } - else { - fptr->mode &= ~FMODE_NOREVLOOKUP; - } - return sock; -} - -static VALUE ipaddr(struct sockaddr*, int); -#ifdef HAVE_SYS_UN_H -static VALUE unixaddr(struct sockaddr_un*, socklen_t); -#endif - -enum sock_recv_type { - RECV_RECV, /* BasicSocket#recv(no from) */ - RECV_IP, /* IPSocket#recvfrom */ - RECV_UNIX, /* UNIXSocket#recvfrom */ - RECV_SOCKET /* Socket#recvfrom */ -}; - -struct recvfrom_arg { - int fd, flags; - VALUE str; - socklen_t alen; - char buf[1024]; -}; - -static VALUE -recvfrom_blocking(void *data) -{ - struct recvfrom_arg *arg = data; - return (VALUE)recvfrom(arg->fd, RSTRING_PTR(arg->str), RSTRING_LEN(arg->str), - arg->flags, (struct sockaddr*)arg->buf, &arg->alen); -} - -static VALUE -s_recvfrom(VALUE sock, int argc, VALUE *argv, enum sock_recv_type from) -{ - rb_io_t *fptr; - VALUE str, klass; - struct recvfrom_arg arg; - VALUE len, flg; - long buflen; - long slen; - - rb_scan_args(argc, argv, "11", &len, &flg); - - if (flg == Qnil) arg.flags = 0; - else arg.flags = NUM2INT(flg); - buflen = NUM2INT(len); - - GetOpenFile(sock, fptr); - if (rb_io_read_pending(fptr)) { - rb_raise(rb_eIOError, "recv for buffered IO"); - } - arg.fd = fptr->fd; - arg.alen = sizeof(arg.buf); - - arg.str = str = rb_tainted_str_new(0, buflen); - klass = RBASIC(str)->klass; - RBASIC(str)->klass = 0; - - while (rb_io_check_closed(fptr), - rb_thread_wait_fd(arg.fd), - (slen = BLOCKING_REGION(recvfrom_blocking, &arg)) < 0) { - if (RBASIC(str)->klass || RSTRING_LEN(str) != buflen) { - rb_raise(rb_eRuntimeError, "buffer string modified"); - } - } - - RBASIC(str)->klass = klass; - if (slen < RSTRING_LEN(str)) { - rb_str_set_len(str, slen); - } - rb_obj_taint(str); - switch (from) { - case RECV_RECV: - return str; - case RECV_IP: -#if 0 - if (arg.alen != sizeof(struct sockaddr_in)) { - rb_raise(rb_eTypeError, "sockaddr size differs - should not happen"); - } -#endif - if (arg.alen && arg.alen != sizeof(arg.buf)) /* OSX doesn't return a from result for connection-oriented sockets */ - return rb_assoc_new(str, ipaddr((struct sockaddr*)arg.buf, fptr->mode & FMODE_NOREVLOOKUP)); - else - return rb_assoc_new(str, Qnil); - -#ifdef HAVE_SYS_UN_H - case RECV_UNIX: - return rb_assoc_new(str, unixaddr((struct sockaddr_un*)arg.buf, arg.alen)); -#endif - case RECV_SOCKET: - return rb_assoc_new(str, rb_str_new(arg.buf, arg.alen)); - default: - rb_bug("s_recvfrom called with bad value"); - } -} - -static VALUE -s_recvfrom_nonblock(VALUE sock, int argc, VALUE *argv, enum sock_recv_type from) -{ - rb_io_t *fptr; - VALUE str; - char buf[1024]; - socklen_t alen = sizeof buf; - VALUE len, flg; - long buflen; - long slen; - int fd, flags; - VALUE addr = Qnil; - - rb_scan_args(argc, argv, "11", &len, &flg); - - if (flg == Qnil) flags = 0; - else flags = NUM2INT(flg); - buflen = NUM2INT(len); - -#ifdef MSG_DONTWAIT - /* MSG_DONTWAIT avoids the race condition between fcntl and recvfrom. - It is not portable, though. */ - flags |= MSG_DONTWAIT; -#endif - - GetOpenFile(sock, fptr); - if (rb_io_read_pending(fptr)) { - rb_raise(rb_eIOError, "recvfrom for buffered IO"); - } - fd = fptr->fd; - - str = rb_tainted_str_new(0, buflen); - - rb_io_check_closed(fptr); - rb_io_set_nonblock(fptr); - slen = recvfrom(fd, RSTRING_PTR(str), buflen, flags, (struct sockaddr*)buf, &alen); - - if (slen < 0) { - rb_sys_fail("recvfrom(2)"); - } - if (slen < RSTRING_LEN(str)) { - rb_str_set_len(str, slen); - } - rb_obj_taint(str); - switch (from) { - case RECV_RECV: - return str; - - case RECV_IP: - if (alen && alen != sizeof(buf)) /* connection-oriented socket may not return a from result */ - addr = ipaddr((struct sockaddr*)buf, fptr->mode & FMODE_NOREVLOOKUP); - break; - - case RECV_SOCKET: - addr = rb_str_new(buf, alen); - break; - - default: - rb_bug("s_recvfrom_nonblock called with bad value"); - } - return rb_assoc_new(str, addr); -} - -static VALUE -bsock_recv(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom(sock, argc, argv, RECV_RECV); -} - -/* - * call-seq: - * basicsocket.recv_nonblock(maxlen) => mesg - * basicsocket.recv_nonblock(maxlen, flags) => mesg - * - * Receives up to _maxlen_ bytes from +socket+ using recvfrom(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * _flags_ is zero or more of the +MSG_+ options. - * The result, _mesg_, is the data received. - * - * When recvfrom(2) returns 0, Socket#recv_nonblock returns - * an empty string as data. - * The meaning depends on the socket: EOF on TCP, empty packet on UDP, etc. - * - * === Parameters - * * +maxlen+ - the number of bytes to receive from the socket - * * +flags+ - zero or more of the +MSG_+ options - * - * === Example - * serv = TCPServer.new("127.0.0.1", 0) - * af, port, host, addr = serv.addr - * c = TCPSocket.new(addr, port) - * s = serv.accept - * c.send "aaa", 0 - * IO.select([s]) - * p s.recv_nonblock(10) #=> "aaa" - * - * Refer to Socket#recvfrom for the exceptions that may be thrown if the call - * to _recv_nonblock_ fails. - * - * BasicSocket#recv_nonblock may raise any error corresponding to recvfrom(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * Socket#recvfrom - */ - -static VALUE -bsock_recv_nonblock(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom_nonblock(sock, argc, argv, RECV_RECV); -} - -static VALUE -bsock_do_not_rev_lookup(void) -{ - return do_not_reverse_lookup?Qtrue:Qfalse; -} - -static VALUE -bsock_do_not_rev_lookup_set(VALUE self, VALUE val) -{ - rb_secure(4); - do_not_reverse_lookup = RTEST(val); - return val; -} - -NORETURN(static void raise_socket_error(const char *, int)); -static void -raise_socket_error(const char *reason, int error) -{ -#ifdef EAI_SYSTEM - if (error == EAI_SYSTEM) rb_sys_fail(reason); -#endif - rb_raise(rb_eSocket, "%s: %s", reason, gai_strerror(error)); -} - -static void -make_ipaddr0(struct sockaddr *addr, char *buf, size_t len) -{ - int error; - - error = getnameinfo(addr, SA_LEN(addr), buf, len, NULL, 0, NI_NUMERICHOST); - if (error) { - raise_socket_error("getnameinfo", error); - } -} - -static VALUE -make_ipaddr(struct sockaddr *addr) -{ - char buf[1024]; - - make_ipaddr0(addr, buf, sizeof(buf)); - return rb_str_new2(buf); -} - -static void -make_inetaddr(long host, char *buf, size_t len) -{ - struct sockaddr_in sin; - - MEMZERO(&sin, struct sockaddr_in, 1); - sin.sin_family = AF_INET; - SET_SIN_LEN(&sin, sizeof(sin)); - sin.sin_addr.s_addr = host; - make_ipaddr0((struct sockaddr*)&sin, buf, len); -} - -static int -str_isnumber(const char *p) -{ - char *ep; - - if (!p || *p == '\0') - return 0; - ep = NULL; - (void)STRTOUL(p, &ep, 10); - if (ep && *ep == '\0') - return 1; - else - return 0; -} - -static char* -host_str(VALUE host, char *hbuf, size_t len) -{ - if (NIL_P(host)) { - return NULL; - } - else if (rb_obj_is_kind_of(host, rb_cInteger)) { - long i = NUM2LONG(host); - - make_inetaddr(htonl(i), hbuf, len); - return hbuf; - } - else { - char *name; - - SafeStringValue(host); - name = RSTRING_PTR(host); - if (!name || *name == 0 || (name[0] == '<' && strcmp(name, "<any>") == 0)) { - make_inetaddr(INADDR_ANY, hbuf, len); - } - else if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) { - make_inetaddr(INADDR_BROADCAST, hbuf, len); - } - else if (strlen(name) >= len) { - rb_raise(rb_eArgError, "hostname too long (%"PRIuSIZE")", - strlen(name)); - } - else { - strcpy(hbuf, name); - } - return hbuf; - } -} - -static char* -port_str(VALUE port, char *pbuf, size_t len) -{ - if (NIL_P(port)) { - return 0; - } - else if (FIXNUM_P(port)) { - snprintf(pbuf, len, "%ld", FIX2LONG(port)); - return pbuf; - } - else { - char *serv; - - SafeStringValue(port); - serv = RSTRING_PTR(port); - if (strlen(serv) >= len) { - rb_raise(rb_eArgError, "service name too long (%"PRIuSIZE")", - strlen(serv)); - } - strcpy(pbuf, serv); - return pbuf; - } -} - -#ifndef NI_MAXHOST -# define NI_MAXHOST 1025 -#endif -#ifndef NI_MAXSERV -# define NI_MAXSERV 32 -#endif - -static struct addrinfo* -sock_addrinfo(VALUE host, VALUE port, int socktype, int flags) -{ - struct addrinfo hints; - struct addrinfo* res = NULL; - char *hostp, *portp; - int error; - char hbuf[NI_MAXHOST], pbuf[NI_MAXSERV]; - - hostp = host_str(host, hbuf, sizeof(hbuf)); - portp = port_str(port, pbuf, sizeof(pbuf)); - - if (socktype == 0 && flags == 0 && str_isnumber(portp)) { - socktype = SOCK_DGRAM; - } - - MEMZERO(&hints, struct addrinfo, 1); - hints.ai_family = AF_UNSPEC; - hints.ai_socktype = socktype; - hints.ai_flags = flags; - error = getaddrinfo(hostp, portp, &hints, &res); - if (error) { - if (hostp && hostp[strlen(hostp)-1] == '\n') { - rb_raise(rb_eSocket, "newline at the end of hostname"); - } - raise_socket_error("getaddrinfo", error); - } - -#if defined(__APPLE__) && defined(__MACH__) - { - struct addrinfo *r; - r = res; - while (r) { - if (! r->ai_socktype) r->ai_socktype = hints.ai_socktype; - if (! r->ai_protocol) { - if (r->ai_socktype == SOCK_DGRAM) { - r->ai_protocol = IPPROTO_UDP; - } - else if (r->ai_socktype == SOCK_STREAM) { - r->ai_protocol = IPPROTO_TCP; - } - } - r = r->ai_next; - } - } -#endif - return res; -} - -static VALUE -ipaddr(struct sockaddr *sockaddr, int norevlookup) -{ - VALUE family, port, addr1, addr2; - VALUE ary; - int error; - char hbuf[1024], pbuf[1024]; - - switch (sockaddr->sa_family) { - case AF_UNSPEC: - family = rb_str_new2("AF_UNSPEC"); - break; - case AF_INET: - family = rb_str_new2("AF_INET"); - break; -#ifdef INET6 - case AF_INET6: - family = rb_str_new2("AF_INET6"); - break; -#endif -#ifdef AF_LOCAL - case AF_LOCAL: - family = rb_str_new2("AF_LOCAL"); - break; -#elif AF_UNIX - case AF_UNIX: - family = rb_str_new2("AF_UNIX"); - break; -#endif - default: - sprintf(pbuf, "unknown:%d", sockaddr->sa_family); - family = rb_str_new2(pbuf); - break; - } - - addr1 = Qnil; - if (!norevlookup) { - error = getnameinfo(sockaddr, SA_LEN(sockaddr), hbuf, sizeof(hbuf), - NULL, 0, 0); - if (! error) { - addr1 = rb_str_new2(hbuf); - } - } - error = getnameinfo(sockaddr, SA_LEN(sockaddr), hbuf, sizeof(hbuf), - pbuf, sizeof(pbuf), NI_NUMERICHOST | NI_NUMERICSERV); - if (error) { - raise_socket_error("getnameinfo", error); - } - addr2 = rb_str_new2(hbuf); - if (addr1 == Qnil) { - addr1 = addr2; - } - port = INT2FIX(atoi(pbuf)); - ary = rb_ary_new3(4, family, port, addr1, addr2); - - return ary; -} - -static int -ruby_socket(int domain, int type, int proto) -{ - int fd; - - fd = socket(domain, type, proto); - if (fd < 0) { - if (errno == EMFILE || errno == ENFILE) { - rb_gc(); - fd = socket(domain, type, proto); - } - } - return fd; -} - -static int -wait_connectable0(int fd, rb_fdset_t *fds_w, rb_fdset_t *fds_e) -{ - int sockerr; - socklen_t sockerrlen; - - for (;;) { - rb_fd_zero(fds_w); - rb_fd_zero(fds_e); - - rb_fd_set(fd, fds_w); - rb_fd_set(fd, fds_e); - - rb_thread_select(fd+1, 0, rb_fd_ptr(fds_w), rb_fd_ptr(fds_e), 0); - - if (rb_fd_isset(fd, fds_w)) { - return 0; - } - else if (rb_fd_isset(fd, fds_e)) { - sockerrlen = sizeof(sockerr); - if (getsockopt(fd, SOL_SOCKET, SO_ERROR, (void *)&sockerr, - &sockerrlen) == 0) { - if (sockerr == 0) - continue; /* workaround for winsock */ - errno = sockerr; - } - return -1; - } - } - - return 0; -} - -struct wait_connectable_arg { - int fd; - rb_fdset_t fds_w; - rb_fdset_t fds_e; -}; - -#ifdef HAVE_RB_FD_INIT -static VALUE -try_wait_connectable(VALUE arg) -{ - struct wait_connectable_arg *p = (struct wait_connectable_arg *)arg; - return (VALUE)wait_connectable0(p->fd, &p->fds_w, &p->fds_e); -} - -static VALUE -wait_connectable_ensure(VALUE arg) -{ - struct wait_connectable_arg *p = (struct wait_connectable_arg *)arg; - rb_fd_term(&p->fds_w); - rb_fd_term(&p->fds_e); - return Qnil; -} -#endif - -static int -wait_connectable(int fd) -{ - struct wait_connectable_arg arg; - - rb_fd_init(&arg.fds_w); - rb_fd_init(&arg.fds_e); -#ifdef HAVE_RB_FD_INIT - arg.fd = fd; - return (int)rb_ensure(try_wait_connectable, (VALUE)&arg, - wait_connectable_ensure,(VALUE)&arg); -#else - return wait_connectable0(fd, &arg.fds_w, &arg.fds_e); -#endif -} - -#ifdef __CYGWIN__ -#define WAIT_IN_PROGRESS 10 -#endif -#ifdef __APPLE__ -#define WAIT_IN_PROGRESS 10 -#endif -#ifdef __linux__ -/* returns correct error */ -#define WAIT_IN_PROGRESS 0 -#endif -#ifndef WAIT_IN_PROGRESS -/* BSD origin code apparently has a problem */ -#define WAIT_IN_PROGRESS 1 -#endif - -struct connect_arg { - int fd; - const struct sockaddr *sockaddr; - socklen_t len; -}; - -static VALUE -connect_blocking(void *data) -{ - struct connect_arg *arg = data; - return (VALUE)connect(arg->fd, arg->sockaddr, arg->len); -} - -#if defined(SOCKS) && !defined(SOCKS5) -static VALUE -socks_connect_blocking(void *data) -{ - struct connect_arg *arg = data; - return (VALUE)Rconnect(arg->fd, arg->sockaddr, arg->len); -} -#endif - -static int -ruby_connect(int fd, const struct sockaddr *sockaddr, int len, int socks) -{ - int status; - rb_blocking_function_t *func = connect_blocking; - struct connect_arg arg; -#if WAIT_IN_PROGRESS > 0 - int wait_in_progress = -1; - int sockerr; - socklen_t sockerrlen; -#endif - - arg.fd = fd; - arg.sockaddr = sockaddr; - arg.len = len; -#if defined(SOCKS) && !defined(SOCKS5) - if (socks) func = socks_connect_blocking; -#endif - for (;;) { - status = (int)BLOCKING_REGION(func, &arg); - if (status < 0) { - switch (errno) { - case EAGAIN: -#ifdef EINPROGRESS - case EINPROGRESS: -#endif -#if WAIT_IN_PROGRESS > 0 - sockerrlen = sizeof(sockerr); - status = getsockopt(fd, SOL_SOCKET, SO_ERROR, (void *)&sockerr, &sockerrlen); - if (status) break; - if (sockerr) { - status = -1; - errno = sockerr; - break; - } -#endif -#ifdef EALREADY - case EALREADY: -#endif -#if WAIT_IN_PROGRESS > 0 - wait_in_progress = WAIT_IN_PROGRESS; -#endif - status = wait_connectable(fd); - if (status) { - break; - } - errno = 0; - continue; - -#if WAIT_IN_PROGRESS > 0 - case EINVAL: - if (wait_in_progress-- > 0) { - /* - * connect() after EINPROGRESS returns EINVAL on - * some platforms, need to check true error - * status. - */ - sockerrlen = sizeof(sockerr); - status = getsockopt(fd, SOL_SOCKET, SO_ERROR, (void *)&sockerr, &sockerrlen); - if (!status && !sockerr) { - struct timeval tv = {0, 100000}; - rb_thread_wait_for(tv); - continue; - } - status = -1; - errno = sockerr; - } - break; -#endif - -#ifdef EISCONN - case EISCONN: - status = 0; - errno = 0; - break; -#endif - default: - break; - } - } - return status; - } -} - -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); -} - -static 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: - * TCPSocket.new(remote_host, remote_port, local_host=nil, local_port=nil) - * - * Opens a TCP connection to +remote_host+ on +remote_port+. If +local_host+ - * and +local_port+ are specified, then those parameters are used on the local - * end to establish the connection. - */ -static VALUE -tcp_init(int argc, VALUE *argv, VALUE sock) -{ - VALUE remote_host, remote_serv; - VALUE local_host, local_serv; - - rb_scan_args(argc, argv, "22", &remote_host, &remote_serv, - &local_host, &local_serv); - - return init_inetsock(sock, remote_host, remote_serv, - local_host, local_serv, INET_CLIENT); -} - -#ifdef SOCKS -static VALUE -socks_init(VALUE sock, VALUE host, VALUE serv) -{ - static init = 0; - - if (init == 0) { - SOCKSinit("ruby"); - init = 1; - } - - return init_inetsock(sock, host, serv, Qnil, Qnil, INET_SOCKS); -} - -#ifdef SOCKS5 -static VALUE -socks_s_close(VALUE sock) -{ - rb_io_t *fptr; - - if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) { - rb_raise(rb_eSecurityError, "Insecure: can't close socket"); - } - GetOpenFile(sock, fptr); - shutdown(fptr->fd, 2); - return rb_io_close(sock); -} -#endif -#endif - -struct hostent_arg { - VALUE host; - struct addrinfo* addr; - VALUE (*ipaddr)(struct sockaddr*, size_t); -}; - -static VALUE -make_hostent_internal(struct hostent_arg *arg) -{ - VALUE host = arg->host; - struct addrinfo* addr = arg->addr; - VALUE (*ipaddr)(struct sockaddr*, size_t) = arg->ipaddr; - - struct addrinfo *ai; - struct hostent *h; - VALUE ary, names; - char **pch; - const char* hostp; - char hbuf[NI_MAXHOST]; - - ary = rb_ary_new(); - if (addr->ai_canonname) { - hostp = addr->ai_canonname; - } - else { - hostp = host_str(host, hbuf, sizeof(hbuf)); - } - rb_ary_push(ary, rb_str_new2(hostp)); - - if (addr->ai_canonname && (h = gethostbyname(addr->ai_canonname))) { - names = rb_ary_new(); - if (h->h_aliases != NULL) { - for (pch = h->h_aliases; *pch; pch++) { - rb_ary_push(names, rb_str_new2(*pch)); - } - } - } - else { - names = rb_ary_new2(0); - } - rb_ary_push(ary, names); - rb_ary_push(ary, INT2NUM(addr->ai_family)); - for (ai = addr; ai; ai = ai->ai_next) { - rb_ary_push(ary, (*ipaddr)(ai->ai_addr, ai->ai_addrlen)); - } - - return ary; -} - -static VALUE -make_hostent(VALUE host, struct addrinfo *addr, VALUE (*ipaddr)(struct sockaddr *, size_t)) -{ - struct hostent_arg arg; - - arg.host = host; - arg.addr = addr; - arg.ipaddr = ipaddr; - return rb_ensure(make_hostent_internal, (VALUE)&arg, - RUBY_METHOD_FUNC(freeaddrinfo), (VALUE)addr); -} - -static VALUE -tcp_sockaddr(struct sockaddr *addr, size_t len) -{ - return make_ipaddr(addr); -} - -static VALUE -tcp_s_gethostbyname(VALUE obj, VALUE host) -{ - rb_secure(3); - return make_hostent(host, sock_addrinfo(host, Qnil, SOCK_STREAM, AI_CANONNAME), - tcp_sockaddr); -} - -static VALUE -tcp_svr_init(int argc, VALUE *argv, VALUE sock) -{ - VALUE arg1, arg2; - - if (rb_scan_args(argc, argv, "11", &arg1, &arg2) == 2) - return init_inetsock(sock, arg1, arg2, Qnil, Qnil, INET_SERVER); - else - return init_inetsock(sock, Qnil, arg1, Qnil, Qnil, INET_SERVER); -} - -static void -make_fd_nonblock(int fd) -{ - int flags; -#ifdef F_GETFL - flags = fcntl(fd, F_GETFL); - if (flags == -1) { - rb_sys_fail(0); - } -#else - flags = 0; -#endif - flags |= O_NONBLOCK; - if (fcntl(fd, F_SETFL, flags) == -1) { - rb_sys_fail(0); - } -} - -static VALUE -s_accept_nonblock(VALUE klass, rb_io_t *fptr, struct sockaddr *sockaddr, socklen_t *len) -{ - int fd2; - - rb_secure(3); - rb_io_set_nonblock(fptr); - fd2 = accept(fptr->fd, (struct sockaddr*)sockaddr, len); - if (fd2 < 0) { - rb_sys_fail("accept(2)"); - } - make_fd_nonblock(fd2); - return init_sock(rb_obj_alloc(klass), fd2); -} - -struct accept_arg { - int fd; - struct sockaddr *sockaddr; - socklen_t *len; -}; - -static VALUE -accept_blocking(void *data) -{ - struct accept_arg *arg = data; - return (VALUE)accept(arg->fd, arg->sockaddr, arg->len); -} - -static VALUE -s_accept(VALUE klass, int fd, struct sockaddr *sockaddr, socklen_t *len) -{ - int fd2; - int retry = 0; - struct accept_arg arg; - - rb_secure(3); - arg.fd = fd; - arg.sockaddr = sockaddr; - arg.len = len; - retry: - rb_thread_wait_fd(fd); - fd2 = BLOCKING_REGION(accept_blocking, &arg); - if (fd2 < 0) { - switch (errno) { - case EMFILE: - case ENFILE: - if (retry) break; - rb_gc(); - retry = 1; - goto retry; - default: - if (!rb_io_wait_readable(fd)) break; - retry = 0; - goto retry; - } - rb_sys_fail(0); - } - if (!klass) return INT2NUM(fd2); - return init_sock(rb_obj_alloc(klass), fd2); -} - -static VALUE -tcp_accept(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_storage from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(from); - return s_accept(rb_cTCPSocket, fptr->fd, - (struct sockaddr*)&from, &fromlen); -} - -/* - * call-seq: - * tcpserver.accept_nonblock => tcpsocket - * - * Accepts an incoming connection using accept(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * It returns an accepted TCPSocket for the incoming connection. - * - * === Example - * require 'socket' - * serv = TCPServer.new(2202) - * begin - * sock = serv.accept_nonblock - * rescue Errno::EAGAIN, Errno::EWOULDBLOCK, Errno::ECONNABORTED, Errno::EPROTO, Errno::EINTR - * IO.select([serv]) - * retry - * end - * # sock is an accepted socket. - * - * Refer to Socket#accept for the exceptions that may be thrown if the call - * to TCPServer#accept_nonblock fails. - * - * TCPServer#accept_nonblock may raise any error corresponding to accept(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * TCPServer#accept - * * Socket#accept - */ -static VALUE -tcp_accept_nonblock(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_storage from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(from); - return s_accept_nonblock(rb_cTCPSocket, fptr, - (struct sockaddr *)&from, &fromlen); -} - -static VALUE -tcp_sysaccept(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_storage from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(from); - return s_accept(0, fptr->fd, (struct sockaddr*)&from, &fromlen); -} - -#ifdef HAVE_SYS_UN_H -struct unixsock_arg { - struct sockaddr_un *sockaddr; - int fd; -}; - -static VALUE -unixsock_connect_internal(struct unixsock_arg *arg) -{ - return (VALUE)ruby_connect(arg->fd, (struct sockaddr*)arg->sockaddr, - sizeof(*arg->sockaddr), 0); -} - -static VALUE -init_unixsock(VALUE sock, VALUE path, int server) -{ - struct sockaddr_un sockaddr; - int fd, status; - rb_io_t *fptr; - - SafeStringValue(path); - fd = ruby_socket(AF_UNIX, SOCK_STREAM, 0); - if (fd < 0) { - rb_sys_fail("socket(2)"); - } - - MEMZERO(&sockaddr, struct sockaddr_un, 1); - sockaddr.sun_family = AF_UNIX; - if (sizeof(sockaddr.sun_path) <= RSTRING_LEN(path)) { - rb_raise(rb_eArgError, "too long unix socket path (max: %dbytes)", - (int)sizeof(sockaddr.sun_path)-1); - } - memcpy(sockaddr.sun_path, RSTRING_PTR(path), RSTRING_LEN(path)); - - if (server) { - status = bind(fd, (struct sockaddr*)&sockaddr, sizeof(sockaddr)); - } - else { - int prot; - struct unixsock_arg arg; - arg.sockaddr = &sockaddr; - arg.fd = fd; - status = rb_protect((VALUE(*)(VALUE))unixsock_connect_internal, - (VALUE)&arg, &prot); - if (prot) { - close(fd); - rb_jump_tag(prot); - } - } - - if (status < 0) { - close(fd); - rb_sys_fail(sockaddr.sun_path); - } - - if (server) listen(fd, 5); - - init_sock(sock, fd); - if (server) { - GetOpenFile(sock, fptr); - fptr->pathv = rb_str_new_frozen(path); - } - - return sock; -} -#endif - -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); -} - -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); -} - -static VALUE -ip_recvfrom(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom(sock, argc, argv, RECV_IP); -} - -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); -} - -static VALUE -udp_init(int argc, VALUE *argv, VALUE sock) -{ - VALUE arg; - int socktype = AF_INET; - int fd; - - rb_secure(3); - if (rb_scan_args(argc, argv, "01", &arg) == 1) { - socktype = NUM2INT(arg); - } - fd = ruby_socket(socktype, SOCK_DGRAM, 0); - if (fd < 0) { - rb_sys_fail("socket(2) - udp"); - } - - return init_sock(sock, fd); -} - -struct udp_arg -{ - struct addrinfo *res; - int fd; -}; - -static VALUE -udp_connect_internal(struct udp_arg *arg) -{ - int fd = arg->fd; - struct addrinfo *res; - - for (res = arg->res; res; res = res->ai_next) { - if (ruby_connect(fd, res->ai_addr, res->ai_addrlen, 0) >= 0) { - return Qtrue; - } - } - return Qfalse; -} - -static VALUE -udp_connect(VALUE sock, VALUE host, VALUE port) -{ - rb_io_t *fptr; - struct udp_arg arg; - VALUE ret; - - rb_secure(3); - arg.res = sock_addrinfo(host, port, SOCK_DGRAM, 0); - GetOpenFile(sock, fptr); - arg.fd = fptr->fd; - ret = rb_ensure(udp_connect_internal, (VALUE)&arg, - RUBY_METHOD_FUNC(freeaddrinfo), (VALUE)arg.res); - if (!ret) rb_sys_fail("connect(2)"); - return INT2FIX(0); -} - -static VALUE -udp_bind(VALUE sock, VALUE host, VALUE port) -{ - rb_io_t *fptr; - struct addrinfo *res0, *res; - - rb_secure(3); - res0 = sock_addrinfo(host, port, SOCK_DGRAM, 0); - GetOpenFile(sock, fptr); - for (res = res0; res; res = res->ai_next) { - if (bind(fptr->fd, res->ai_addr, res->ai_addrlen) < 0) { - continue; - } - freeaddrinfo(res0); - return INT2FIX(0); - } - freeaddrinfo(res0); - rb_sys_fail("bind(2)"); - return INT2FIX(0); -} - -static VALUE -udp_send(int argc, VALUE *argv, VALUE sock) -{ - VALUE flags, host, port; - rb_io_t *fptr; - int n; - struct addrinfo *res0, *res; - struct send_arg arg; - - if (argc == 2 || argc == 3) { - return bsock_send(argc, argv, sock); - } - rb_secure(4); - rb_scan_args(argc, argv, "4", &arg.mesg, &flags, &host, &port); - - StringValue(arg.mesg); - res0 = sock_addrinfo(host, port, SOCK_DGRAM, 0); - GetOpenFile(sock, fptr); - arg.fd = fptr->fd; - arg.flags = NUM2INT(flags); - for (res = res0; res; res = res->ai_next) { - retry: - arg.to = res->ai_addr; - arg.tolen = res->ai_addrlen; - rb_thread_fd_writable(arg.fd); - n = (int)BLOCKING_REGION(sendto_blocking, &arg); - if (n >= 0) { - freeaddrinfo(res0); - return INT2FIX(n); - } - if (rb_io_wait_writable(fptr->fd)) { - goto retry; - } - } - freeaddrinfo(res0); - rb_sys_fail("sendto(2)"); - return INT2FIX(n); -} - -/* - * call-seq: - * udpsocket.recvfrom_nonblock(maxlen) => [mesg, sender_inet_addr] - * udpsocket.recvfrom_nonblock(maxlen, flags) => [mesg, sender_inet_addr] - * - * Receives up to _maxlen_ bytes from +udpsocket+ using recvfrom(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * _flags_ is zero or more of the +MSG_+ options. - * The first element of the results, _mesg_, is the data received. - * The second element, _sender_inet_addr_, is an array to represent the sender address. - * - * When recvfrom(2) returns 0, - * Socket#recvfrom_nonblock returns an empty string as data. - * It means an empty packet. - * - * === Parameters - * * +maxlen+ - the number of bytes to receive from the socket - * * +flags+ - zero or more of the +MSG_+ options - * - * === Example - * require 'socket' - * s1 = UDPSocket.new - * s1.bind("127.0.0.1", 0) - * s2 = UDPSocket.new - * s2.bind("127.0.0.1", 0) - * s2.connect(*s1.addr.values_at(3,1)) - * s1.connect(*s2.addr.values_at(3,1)) - * s1.send "aaa", 0 - * IO.select([s2]) - * p s2.recvfrom_nonblock(10) #=> ["aaa", ["AF_INET", 33302, "localhost.localdomain", "127.0.0.1"]] - * - * Refer to Socket#recvfrom for the exceptions that may be thrown if the call - * to _recvfrom_nonblock_ fails. - * - * UDPSocket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * Socket#recvfrom - */ -static VALUE -udp_recvfrom_nonblock(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom_nonblock(sock, argc, argv, RECV_IP); -} - -#ifdef HAVE_SYS_UN_H -static VALUE -unix_init(VALUE sock, VALUE path) -{ - return init_unixsock(sock, path, 0); -} - -static const char* -unixpath(struct sockaddr_un *sockaddr, socklen_t len) -{ - if (sockaddr->sun_path < (char*)sockaddr + len) - return sockaddr->sun_path; - else - return ""; -} - -static VALUE -unix_path(VALUE sock) -{ - rb_io_t *fptr; - - GetOpenFile(sock, fptr); - if (NIL_P(fptr->pathv)) { - struct sockaddr_un addr; - socklen_t len = sizeof(addr); - if (getsockname(fptr->fd, (struct sockaddr*)&addr, &len) < 0) - rb_sys_fail(0); - fptr->pathv = rb_obj_freeze(rb_str_new_cstr(unixpath(&addr, len))); - } - return rb_str_dup(fptr->pathv); -} - -static VALUE -unix_svr_init(VALUE sock, VALUE path) -{ - return init_unixsock(sock, path, 1); -} - -static VALUE -unix_recvfrom(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom(sock, argc, argv, RECV_UNIX); -} - -#if defined(HAVE_ST_MSG_CONTROL) && defined(SCM_RIGHTS) -#define FD_PASSING_BY_MSG_CONTROL 1 -#else -#define FD_PASSING_BY_MSG_CONTROL 0 -#endif - -#if defined(HAVE_ST_MSG_ACCRIGHTS) -#define FD_PASSING_BY_MSG_ACCRIGHTS 1 -#else -#define FD_PASSING_BY_MSG_ACCRIGHTS 0 -#endif - -struct iomsg_arg { - int fd; - struct msghdr msg; -}; - -static VALUE -sendmsg_blocking(void *data) -{ - struct iomsg_arg *arg = data; - return sendmsg(arg->fd, &arg->msg, 0); -} - -static VALUE -unix_send_io(VALUE sock, VALUE val) -{ -#if defined(HAVE_SENDMSG) && (FD_PASSING_BY_MSG_CONTROL || FD_PASSING_BY_MSG_ACCRIGHTS) - int fd; - rb_io_t *fptr; - struct iomsg_arg arg; - struct iovec vec[1]; - char buf[1]; - -#if FD_PASSING_BY_MSG_CONTROL - struct { - struct cmsghdr hdr; - char pad[8+sizeof(int)+8]; - } cmsg; -#endif - - if (rb_obj_is_kind_of(val, rb_cIO)) { - rb_io_t *valfptr; - GetOpenFile(val, valfptr); - fd = valfptr->fd; - } - else if (FIXNUM_P(val)) { - fd = FIX2INT(val); - } - else { - rb_raise(rb_eTypeError, "neither IO nor file descriptor"); - } - - GetOpenFile(sock, fptr); - - arg.msg.msg_name = NULL; - arg.msg.msg_namelen = 0; - - /* Linux and Solaris doesn't work if msg_iov is NULL. */ - buf[0] = '\0'; - vec[0].iov_base = buf; - vec[0].iov_len = 1; - arg.msg.msg_iov = vec; - arg.msg.msg_iovlen = 1; - -#if FD_PASSING_BY_MSG_CONTROL - arg.msg.msg_control = (caddr_t)&cmsg; - arg.msg.msg_controllen = CMSG_LEN(sizeof(int)); - arg.msg.msg_flags = 0; - MEMZERO((char*)&cmsg, char, sizeof(cmsg)); - cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int)); - cmsg.hdr.cmsg_level = SOL_SOCKET; - cmsg.hdr.cmsg_type = SCM_RIGHTS; - *(int *)CMSG_DATA(&cmsg.hdr) = fd; -#else - arg.msg.msg_accrights = (caddr_t)&fd; - arg.msg.msg_accrightslen = sizeof(fd); -#endif - - arg.fd = fptr->fd; - rb_thread_fd_writable(arg.fd); - if ((int)BLOCKING_REGION(sendmsg_blocking, &arg) == -1) - rb_sys_fail("sendmsg(2)"); - - return Qnil; -#else - rb_notimplement(); - return Qnil; /* not reached */ -#endif -} - -static VALUE -recvmsg_blocking(void *data) -{ - struct iomsg_arg *arg = data; - return recvmsg(arg->fd, &arg->msg, 0); -} - -static VALUE -unix_recv_io(int argc, VALUE *argv, VALUE sock) -{ -#if defined(HAVE_RECVMSG) && (FD_PASSING_BY_MSG_CONTROL || FD_PASSING_BY_MSG_ACCRIGHTS) - VALUE klass, mode; - rb_io_t *fptr; - struct iomsg_arg arg; - struct iovec vec[2]; - char buf[1]; - - int fd; -#if FD_PASSING_BY_MSG_CONTROL - struct { - struct cmsghdr hdr; - char pad[8+sizeof(int)+8]; - } cmsg; -#endif - - rb_scan_args(argc, argv, "02", &klass, &mode); - if (argc == 0) - klass = rb_cIO; - if (argc <= 1) - mode = Qnil; - - GetOpenFile(sock, fptr); - - arg.msg.msg_name = NULL; - arg.msg.msg_namelen = 0; - - vec[0].iov_base = buf; - vec[0].iov_len = sizeof(buf); - arg.msg.msg_iov = vec; - arg.msg.msg_iovlen = 1; - -#if FD_PASSING_BY_MSG_CONTROL - arg.msg.msg_control = (caddr_t)&cmsg; - arg.msg.msg_controllen = CMSG_SPACE(sizeof(int)); - arg.msg.msg_flags = 0; - cmsg.hdr.cmsg_len = CMSG_LEN(sizeof(int)); - cmsg.hdr.cmsg_level = SOL_SOCKET; - cmsg.hdr.cmsg_type = SCM_RIGHTS; - *(int *)CMSG_DATA(&cmsg.hdr) = -1; -#else - arg.msg.msg_accrights = (caddr_t)&fd; - arg.msg.msg_accrightslen = sizeof(fd); - fd = -1; -#endif - - arg.fd = fptr->fd; - rb_thread_wait_fd(arg.fd); - if ((int)BLOCKING_REGION(recvmsg_blocking, &arg) == -1) - rb_sys_fail("recvmsg(2)"); - -#if FD_PASSING_BY_MSG_CONTROL - if (arg.msg.msg_controllen != CMSG_SPACE(sizeof(int))) { - rb_raise(rb_eSocket, - "file descriptor was not passed (msg_controllen=%d, %d expected)", - (int)arg.msg.msg_controllen, (int)CMSG_SPACE(sizeof(int))); - } - if (cmsg.hdr.cmsg_len != CMSG_LEN(sizeof(int))) { - rb_raise(rb_eSocket, - "file descriptor was not passed (cmsg_len=%d, %d expected)", - (int)cmsg.hdr.cmsg_len, (int)CMSG_LEN(sizeof(int))); - } - if (cmsg.hdr.cmsg_level != SOL_SOCKET) { - rb_raise(rb_eSocket, - "file descriptor was not passed (cmsg_level=%d, %d expected)", - cmsg.hdr.cmsg_level, SOL_SOCKET); - } - if (cmsg.hdr.cmsg_type != SCM_RIGHTS) { - rb_raise(rb_eSocket, - "file descriptor was not passed (cmsg_type=%d, %d expected)", - cmsg.hdr.cmsg_type, SCM_RIGHTS); - } -#else - if (arg.msg.msg_accrightslen != sizeof(fd)) { - rb_raise(rb_eSocket, - "file descriptor was not passed (accrightslen) : %d != %d", - arg.msg.msg_accrightslen, (int)sizeof(fd)); - } -#endif - -#if FD_PASSING_BY_MSG_CONTROL - fd = *(int *)CMSG_DATA(&cmsg.hdr); -#endif - - if (klass == Qnil) - return INT2FIX(fd); - else { - static ID for_fd = 0; - int ff_argc; - VALUE ff_argv[2]; - if (!for_fd) - for_fd = rb_intern("for_fd"); - ff_argc = mode == Qnil ? 1 : 2; - ff_argv[0] = INT2FIX(fd); - ff_argv[1] = mode; - return rb_funcall2(klass, for_fd, ff_argc, ff_argv); - } -#else - rb_notimplement(); - return Qnil; /* not reached */ -#endif -} - -static VALUE -unix_accept(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_un from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(struct sockaddr_un); - return s_accept(rb_cUNIXSocket, fptr->fd, - (struct sockaddr*)&from, &fromlen); -} - -/* - * call-seq: - * unixserver.accept_nonblock => unixsocket - * - * Accepts an incoming connection using accept(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * It returns an accepted UNIXSocket for the incoming connection. - * - * === Example - * require 'socket' - * serv = UNIXServer.new("/tmp/sock") - * begin - * sock = serv.accept_nonblock - * rescue Errno::EAGAIN, Errno::EWOULDBLOCK, Errno::ECONNABORTED, Errno::EPROTO, Errno::EINTR - * IO.select([serv]) - * retry - * end - * # sock is an accepted socket. - * - * Refer to Socket#accept for the exceptions that may be thrown if the call - * to UNIXServer#accept_nonblock fails. - * - * UNIXServer#accept_nonblock may raise any error corresponding to accept(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * UNIXServer#accept - * * Socket#accept - */ -static VALUE -unix_accept_nonblock(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_un from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(from); - return s_accept_nonblock(rb_cUNIXSocket, fptr, - (struct sockaddr *)&from, &fromlen); -} - -static VALUE -unix_sysaccept(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_un from; - socklen_t fromlen; - - GetOpenFile(sock, fptr); - fromlen = sizeof(struct sockaddr_un); - return s_accept(0, fptr->fd, (struct sockaddr*)&from, &fromlen); -} - -#ifdef HAVE_SYS_UN_H -static VALUE -unixaddr(struct sockaddr_un *sockaddr, socklen_t len) -{ - return rb_assoc_new(rb_str_new2("AF_UNIX"), - rb_str_new2(unixpath(sockaddr, len))); -} -#endif - -static VALUE -unix_addr(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_un addr; - socklen_t len = sizeof addr; - - GetOpenFile(sock, fptr); - - if (getsockname(fptr->fd, (struct sockaddr*)&addr, &len) < 0) - rb_sys_fail("getsockname(2)"); - return unixaddr(&addr, len); -} - -static VALUE -unix_peeraddr(VALUE sock) -{ - rb_io_t *fptr; - struct sockaddr_un addr; - socklen_t len = sizeof addr; - - GetOpenFile(sock, fptr); - - if (getpeername(fptr->fd, (struct sockaddr*)&addr, &len) < 0) - rb_sys_fail("getpeername(2)"); - return unixaddr(&addr, len); -} -#endif - -static void -setup_domain_and_type(VALUE domain, int *dv, VALUE type, int *tv) -{ - VALUE tmp; - char *ptr; - - tmp = rb_check_string_type(domain); - if (!NIL_P(tmp)) { - domain = tmp; - rb_check_safe_obj(domain); - ptr = RSTRING_PTR(domain); - if (strcmp(ptr, "AF_INET") == 0) - *dv = AF_INET; -#ifdef AF_UNIX - else if (strcmp(ptr, "AF_UNIX") == 0) - *dv = AF_UNIX; -#endif -#ifdef AF_ISO - else if (strcmp(ptr, "AF_ISO") == 0) - *dv = AF_ISO; -#endif -#ifdef AF_NS - else if (strcmp(ptr, "AF_NS") == 0) - *dv = AF_NS; -#endif -#ifdef AF_IMPLINK - else if (strcmp(ptr, "AF_IMPLINK") == 0) - *dv = AF_IMPLINK; -#endif -#ifdef PF_INET - else if (strcmp(ptr, "PF_INET") == 0) - *dv = PF_INET; -#endif -#ifdef PF_UNIX - else if (strcmp(ptr, "PF_UNIX") == 0) - *dv = PF_UNIX; -#endif -#ifdef PF_IMPLINK - else if (strcmp(ptr, "PF_IMPLINK") == 0) - *dv = PF_IMPLINK; - else if (strcmp(ptr, "AF_IMPLINK") == 0) - *dv = AF_IMPLINK; -#endif -#ifdef PF_AX25 - else if (strcmp(ptr, "PF_AX25") == 0) - *dv = PF_AX25; -#endif -#ifdef PF_IPX - else if (strcmp(ptr, "PF_IPX") == 0) - *dv = PF_IPX; -#endif - else - rb_raise(rb_eSocket, "unknown socket domain %s", ptr); - } - else { - *dv = NUM2INT(domain); - } - tmp = rb_check_string_type(type); - if (!NIL_P(tmp)) { - type = tmp; - rb_check_safe_obj(type); - ptr = RSTRING_PTR(type); - if (strcmp(ptr, "SOCK_STREAM") == 0) - *tv = SOCK_STREAM; - else if (strcmp(ptr, "SOCK_DGRAM") == 0) - *tv = SOCK_DGRAM; -#ifdef SOCK_RAW - else if (strcmp(ptr, "SOCK_RAW") == 0) - *tv = SOCK_RAW; -#endif -#ifdef SOCK_SEQPACKET - else if (strcmp(ptr, "SOCK_SEQPACKET") == 0) - *tv = SOCK_SEQPACKET; -#endif -#ifdef SOCK_RDM - else if (strcmp(ptr, "SOCK_RDM") == 0) - *tv = SOCK_RDM; -#endif -#ifdef SOCK_PACKET - else if (strcmp(ptr, "SOCK_PACKET") == 0) - *tv = SOCK_PACKET; -#endif - else - rb_raise(rb_eSocket, "unknown socket type %s", ptr); - } - else { - *tv = NUM2INT(type); - } -} - -static VALUE -sock_initialize(VALUE sock, VALUE domain, VALUE type, VALUE protocol) -{ - int fd; - int d, t; - - rb_secure(3); - setup_domain_and_type(domain, &d, type, &t); - fd = ruby_socket(d, t, NUM2INT(protocol)); - if (fd < 0) rb_sys_fail("socket(2)"); - - return init_sock(sock, fd); -} - -static VALUE -sock_s_socketpair(VALUE klass, VALUE domain, VALUE type, VALUE protocol) -{ -#if defined HAVE_SOCKETPAIR - int d, t, p, sp[2]; - int ret; - - setup_domain_and_type(domain, &d, type, &t); - p = NUM2INT(protocol); - ret = socketpair(d, t, p, sp); - if (ret < 0 && (errno == EMFILE || errno == ENFILE)) { - rb_gc(); - ret = socketpair(d, t, p, sp); - } - if (ret < 0) { - rb_sys_fail("socketpair(2)"); - } - - return rb_assoc_new(init_sock(rb_obj_alloc(klass), sp[0]), - init_sock(rb_obj_alloc(klass), sp[1])); -#else - rb_notimplement(); -#endif -} - -#ifdef HAVE_SYS_UN_H -static VALUE -unix_s_socketpair(int argc, VALUE *argv, VALUE klass) -{ - VALUE domain, type, protocol; - domain = INT2FIX(PF_UNIX); - - rb_scan_args(argc, argv, "02", &type, &protocol); - if (argc == 0) - type = INT2FIX(SOCK_STREAM); - if (argc <= 1) - protocol = INT2FIX(0); - - return sock_s_socketpair(klass, domain, type, protocol); -} -#endif - -/* - * call-seq: - * socket.connect(server_sockaddr) => 0 - * - * Requests a connection to be made on the given +server_sockaddr+. Returns 0 if - * successful, otherwise an exception is raised. - * - * === Parameter - * * +server_sockaddr+ - the +struct+ sockaddr contained in a string - * - * === Example: - * # Pull down Google's web page - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 80, 'www.google.com' ) - * socket.connect( sockaddr ) - * socket.write( "GET / HTTP/1.0\r\n\r\n" ) - * results = socket.read - * - * === Unix-based Exceptions - * On unix-based systems the following system exceptions may be raised if - * the call to _connect_ fails: - * * Errno::EACCES - search permission is denied for a component of the prefix - * path or write access to the +socket+ is denided - * * Errno::EADDRINUSE - the _sockaddr_ is already in use - * * Errno::EADDRNOTAVAIL - the specified _sockaddr_ is not available from the - * local machine - * * Errno::EAFNOSUPPORT - the specified _sockaddr_ is not a valid address for - * the address family of the specified +socket+ - * * Errno::EALREADY - a connection is already in progress for the specified - * socket - * * Errno::EBADF - the +socket+ is not a valid file descriptor - * * Errno::ECONNREFUSED - the target _sockaddr_ was not listening for connections - * refused the connection request - * * Errno::ECONNRESET - the remote host reset the connection request - * * Errno::EFAULT - the _sockaddr_ cannot be accessed - * * Errno::EHOSTUNREACH - the destination host cannot be reached (probably - * because the host is down or a remote router cannot reach it) - * * Errno::EINPROGRESS - the O_NONBLOCK is set for the +socket+ and the - * connection cnanot be immediately established; the connection will be - * established asynchronously - * * Errno::EINTR - the attempt to establish the connection was interrupted by - * delivery of a signal that was caught; the connection will be established - * asynchronously - * * Errno::EISCONN - the specified +socket+ is already connected - * * Errno::EINVAL - the address length used for the _sockaddr_ is not a valid - * length for the address family or there is an invalid family in _sockaddr_ - * * Errno::ENAMETOOLONG - the pathname resolved had a length which exceeded - * PATH_MAX - * * Errno::ENETDOWN - the local interface used to reach the destination is down - * * Errno::ENETUNREACH - no route to the network is present - * * Errno::ENOBUFS - no buffer space is available - * * Errno::ENOSR - there were insufficient STREAMS resources available to - * complete the operation - * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket - * * Errno::EOPNOTSUPP - the calling +socket+ is listening and cannot be connected - * * Errno::EPROTOTYPE - the _sockaddr_ has a different type than the socket - * bound to the specified peer address - * * Errno::ETIMEDOUT - the attempt to connect time out before a connection - * was made. - * - * On unix-based systems if the address family of the calling +socket+ is - * AF_UNIX the follow exceptions may be raised if the call to _connect_ - * fails: - * * Errno::EIO - an i/o error occured while reading from or writing to the - * file system - * * Errno::ELOOP - too many symbolic links were encountered in translating - * the pathname in _sockaddr_ - * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX - * characters, or an entired pathname exceeded PATH_MAX characters - * * Errno::ENOENT - a component of the pathname does not name an existing file - * or the pathname is an empty string - * * Errno::ENOTDIR - a component of the path prefix of the pathname in _sockaddr_ - * is not a directory - * - * === Windows Exceptions - * On Windows systems the following system exceptions may be raised if - * the call to _connect_ fails: - * * Errno::ENETDOWN - the network is down - * * Errno::EADDRINUSE - the socket's local address is already in use - * * Errno::EINTR - the socket was cancelled - * * Errno::EINPROGRESS - a blocking socket is in progress or the service provider - * is still processing a callback function. Or a nonblocking connect call is - * in progress on the +socket+. - * * Errno::EALREADY - see Errno::EINVAL - * * Errno::EADDRNOTAVAIL - the remote address is not a valid address, such as - * ADDR_ANY TODO check ADDRANY TO INADDR_ANY - * * Errno::EAFNOSUPPORT - addresses in the specified family cannot be used with - * with this +socket+ - * * Errno::ECONNREFUSED - the target _sockaddr_ was not listening for connections - * refused the connection request - * * Errno::EFAULT - the socket's internal address or address length parameter - * is too small or is not a valid part of the user space address - * * Errno::EINVAL - the +socket+ is a listening socket - * * Errno::EISCONN - the +socket+ is already connected - * * Errno::ENETUNREACH - the network cannot be reached from this host at this time - * * Errno::EHOSTUNREACH - no route to the network is present - * * Errno::ENOBUFS - no buffer space is available - * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket - * * Errno::ETIMEDOUT - the attempt to connect time out before a connection - * was made. - * * Errno::EWOULDBLOCK - the socket is marked as nonblocking and the - * connection cannot be completed immediately - * * Errno::EACCES - the attempt to connect the datagram socket to the - * broadcast address failed - * - * === See - * * connect manual pages on unix-based systems - * * connect function in Microsoft's Winsock functions reference - */ -static VALUE -sock_connect(VALUE sock, VALUE addr) -{ - rb_io_t *fptr; - int fd, n; - - StringValue(addr); - addr = rb_str_new4(addr); - GetOpenFile(sock, fptr); - fd = fptr->fd; - n = ruby_connect(fd, (struct sockaddr*)RSTRING_PTR(addr), RSTRING_LEN(addr), 0); - if (n < 0) { - rb_sys_fail("connect(2)"); - } - - return INT2FIX(n); -} - -/* - * call-seq: - * socket.connect_nonblock(server_sockaddr) => 0 - * - * Requests a connection to be made on the given +server_sockaddr+ after - * O_NONBLOCK is set for the underlying file descriptor. - * Returns 0 if successful, otherwise an exception is raised. - * - * === Parameter - * * +server_sockaddr+ - the +struct+ sockaddr contained in a string - * - * === Example: - * # Pull down Google's web page - * require 'socket' - * include Socket::Constants - * socket = Socket.new(AF_INET, SOCK_STREAM, 0) - * sockaddr = Socket.sockaddr_in(80, 'www.google.com') - * begin - * socket.connect_nonblock(sockaddr) - * rescue Errno::EINPROGRESS - * IO.select(nil, [socket]) - * begin - * socket.connect_nonblock(sockaddr) - * rescue Errno::EISCONN - * end - * end - * socket.write("GET / HTTP/1.0\r\n\r\n") - * results = socket.read - * - * Refer to Socket#connect for the exceptions that may be thrown if the call - * to _connect_nonblock_ fails. - * - * Socket#connect_nonblock may raise any error corresponding to connect(2) failure, - * including Errno::EINPROGRESS. - * - * === See - * * Socket#connect - */ -static VALUE -sock_connect_nonblock(VALUE sock, VALUE addr) -{ - rb_io_t *fptr; - int n; - - StringValue(addr); - addr = rb_str_new4(addr); - GetOpenFile(sock, fptr); - rb_io_set_nonblock(fptr); - n = connect(fptr->fd, (struct sockaddr*)RSTRING_PTR(addr), RSTRING_LEN(addr)); - if (n < 0) { - rb_sys_fail("connect(2)"); - } - - return INT2FIX(n); -} - -/* - * call-seq: - * socket.bind(server_sockaddr) => 0 - * - * Binds to the given +struct+ sockaddr. - * - * === Parameter - * * +server_sockaddr+ - the +struct+ sockaddr contained in a string - * - * === Example - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.bind( sockaddr ) - * - * === Unix-based Exceptions - * On unix-based based systems the following system exceptions may be raised if - * the call to _bind_ fails: - * * Errno::EACCES - the specified _sockaddr_ is protected and the current - * user does not have permission to bind to it - * * Errno::EADDRINUSE - the specified _sockaddr_ is already in use - * * Errno::EADDRNOTAVAIL - the specified _sockaddr_ is not available from the - * local machine - * * Errno::EAFNOSUPPORT - the specified _sockaddr_ isnot a valid address for - * the family of the calling +socket+ - * * Errno::EBADF - the _sockaddr_ specified is not a valid file descriptor - * * Errno::EFAULT - the _sockaddr_ argument cannot be accessed - * * Errno::EINVAL - the +socket+ is already bound to an address, and the - * protocol does not support binding to the new _sockaddr_ or the +socket+ - * has been shut down. - * * Errno::EINVAL - the address length is not a valid length for the address - * family - * * Errno::ENAMETOOLONG - the pathname resolved had a length which exceeded - * PATH_MAX - * * Errno::ENOBUFS - no buffer space is available - * * Errno::ENOSR - there were insufficient STREAMS resources available to - * complete the operation - * * Errno::ENOTSOCK - the +socket+ does not refer to a socket - * * Errno::EOPNOTSUPP - the socket type of the +socket+ does not support - * binding to an address - * - * On unix-based based systems if the address family of the calling +socket+ is - * Socket::AF_UNIX the follow exceptions may be raised if the call to _bind_ - * fails: - * * Errno::EACCES - search permission is denied for a component of the prefix - * path or write access to the +socket+ is denided - * * Errno::EDESTADDRREQ - the _sockaddr_ argument is a null pointer - * * Errno::EISDIR - same as Errno::EDESTADDRREQ - * * Errno::EIO - an i/o error occurred - * * Errno::ELOOP - too many symbolic links were encountered in translating - * the pathname in _sockaddr_ - * * Errno::ENAMETOOLLONG - a component of a pathname exceeded NAME_MAX - * characters, or an entired pathname exceeded PATH_MAX characters - * * Errno::ENOENT - a component of the pathname does not name an existing file - * or the pathname is an empty string - * * Errno::ENOTDIR - a component of the path prefix of the pathname in _sockaddr_ - * is not a directory - * * Errno::EROFS - the name would reside on a read only filesystem - * - * === Windows Exceptions - * On Windows systems the following system exceptions may be raised if - * the call to _bind_ fails: - * * Errno::ENETDOWN-- the network is down - * * Errno::EACCES - the attempt to connect the datagram socket to the - * broadcast address failed - * * Errno::EADDRINUSE - the socket's local address is already in use - * * Errno::EADDRNOTAVAIL - the specified address is not a valid address for this - * computer - * * Errno::EFAULT - the socket's internal address or address length parameter - * is too small or is not a valid part of the user space addressed - * * Errno::EINVAL - the +socket+ is already bound to an address - * * Errno::ENOBUFS - no buffer space is available - * * Errno::ENOTSOCK - the +socket+ argument does not refer to a socket - * - * === See - * * bind manual pages on unix-based systems - * * bind function in Microsoft's Winsock functions reference - */ -static VALUE -sock_bind(VALUE sock, VALUE addr) -{ - rb_io_t *fptr; - - StringValue(addr); - GetOpenFile(sock, fptr); - if (bind(fptr->fd, (struct sockaddr*)RSTRING_PTR(addr), RSTRING_LEN(addr)) < 0) - rb_sys_fail("bind(2)"); - - return INT2FIX(0); -} - -/* - * call-seq: - * socket.listen( int ) => 0 - * - * Listens for connections, using the specified +int+ as the backlog. A call - * to _listen_ only applies if the +socket+ is of type SOCK_STREAM or - * SOCK_SEQPACKET. - * - * === Parameter - * * +backlog+ - the maximum length of the queue for pending connections. - * - * === Example 1 - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.bind( sockaddr ) - * socket.listen( 5 ) - * - * === Example 2 (listening on an arbitary port, unix-based systems only): - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * socket.listen( 1 ) - * - * === Unix-based Exceptions - * On unix based systems the above will work because a new +sockaddr+ struct - * is created on the address ADDR_ANY, for an arbitrary port number as handed - * off by the kernel. It will not work on Windows, because Windows requires that - * the +socket+ is bound by calling _bind_ before it can _listen_. - * - * If the _backlog_ amount exceeds the implementation-dependent maximum - * queue length, the implementation's maximum queue length will be used. - * - * On unix-based based systems the following system exceptions may be raised if the - * call to _listen_ fails: - * * Errno::EBADF - the _socket_ argument is not a valid file descriptor - * * Errno::EDESTADDRREQ - the _socket_ is not bound to a local address, and - * the protocol does not support listening on an unbound socket - * * Errno::EINVAL - the _socket_ is already connected - * * Errno::ENOTSOCK - the _socket_ argument does not refer to a socket - * * Errno::EOPNOTSUPP - the _socket_ protocol does not support listen - * * Errno::EACCES - the calling process does not have approriate privileges - * * Errno::EINVAL - the _socket_ has been shut down - * * Errno::ENOBUFS - insufficient resources are available in the system to - * complete the call - * - * === Windows Exceptions - * On Windows systems the following system exceptions may be raised if - * the call to _listen_ fails: - * * Errno::ENETDOWN - the network is down - * * Errno::EADDRINUSE - the socket's local address is already in use. This - * usually occurs during the execution of _bind_ but could be delayed - * if the call to _bind_ was to a partially wildcard address (involving - * ADDR_ANY) and if a specific address needs to be commmitted at the - * time of the call to _listen_ - * * Errno::EINPROGRESS - a Windows Sockets 1.1 call is in progress or the - * service provider is still processing a callback function - * * Errno::EINVAL - the +socket+ has not been bound with a call to _bind_. - * * Errno::EISCONN - the +socket+ is already connected - * * Errno::EMFILE - no more socket descriptors are available - * * Errno::ENOBUFS - no buffer space is available - * * Errno::ENOTSOC - +socket+ is not a socket - * * Errno::EOPNOTSUPP - the referenced +socket+ is not a type that supports - * the _listen_ method - * - * === See - * * listen manual pages on unix-based systems - * * listen function in Microsoft's Winsock functions reference - */ -static VALUE -sock_listen(VALUE sock, VALUE log) -{ - rb_io_t *fptr; - int backlog; - - rb_secure(4); - backlog = NUM2INT(log); - GetOpenFile(sock, fptr); - if (listen(fptr->fd, backlog) < 0) - rb_sys_fail("listen(2)"); - - return INT2FIX(0); -} - -/* - * call-seq: - * socket.recvfrom(maxlen) => [mesg, sender_sockaddr] - * socket.recvfrom(maxlen, flags) => [mesg, sender_sockaddr] - * - * Receives up to _maxlen_ bytes from +socket+. _flags_ is zero or more - * of the +MSG_+ options. The first element of the results, _mesg_, is the data - * received. The second element, _sender_sockaddr_, contains protocol-specific information - * on the sender. - * - * === Parameters - * * +maxlen+ - the number of bytes to receive from the socket - * * +flags+ - zero or more of the +MSG_+ options - * - * === Example - * # In one file, start this first - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.bind( sockaddr ) - * socket.listen( 5 ) - * client, client_sockaddr = socket.accept - * data = client.recvfrom( 20 )[0].chomp - * puts "I only received 20 bytes '#{data}'" - * sleep 1 - * socket.close - * - * # In another file, start this second - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.connect( sockaddr ) - * socket.puts "Watch this get cut short!" - * socket.close - * - * === Unix-based Exceptions - * On unix-based based systems the following system exceptions may be raised if the - * call to _recvfrom_ fails: - * * Errno::EAGAIN - the +socket+ file descriptor is marked as O_NONBLOCK and no - * data is waiting to be received; or MSG_OOB is set and no out-of-band data - * is available and either the +socket+ file descriptor is marked as - * O_NONBLOCK or the +socket+ does not support blocking to wait for - * out-of-band-data - * * Errno::EWOULDBLOCK - see Errno::EAGAIN - * * Errno::EBADF - the +socket+ is not a valid file descriptor - * * Errno::ECONNRESET - a connection was forcibly closed by a peer - * * Errno::EFAULT - the socket's internal buffer, address or address length - * cannot be accessed or written - * * Errno::EINTR - a signal interupted _recvfrom_ before any data was available - * * Errno::EINVAL - the MSG_OOB flag is set and no out-of-band data is available - * * Errno::EIO - an i/o error occurred while reading from or writing to the - * filesystem - * * Errno::ENOBUFS - insufficient resources were available in the system to - * perform the operation - * * Errno::ENOMEM - insufficient memory was available to fulfill the request - * * Errno::ENOSR - there were insufficient STREAMS resources available to - * complete the operation - * * Errno::ENOTCONN - a receive is attempted on a connection-mode socket that - * is not connected - * * Errno::ENOTSOCK - the +socket+ does not refer to a socket - * * Errno::EOPNOTSUPP - the specified flags are not supported for this socket type - * * Errno::ETIMEDOUT - the connection timed out during connection establishment - * or due to a transmission timeout on an active connection - * - * === Windows Exceptions - * On Windows systems the following system exceptions may be raised if - * the call to _recvfrom_ fails: - * * Errno::ENETDOWN - the network is down - * * Errno::EFAULT - the internal buffer and from parameters on +socket+ are not - * part of the user address space, or the internal fromlen parameter is - * too small to accomodate the peer address - * * Errno::EINTR - the (blocking) call was cancelled by an internal call to - * the WinSock function WSACancelBlockingCall - * * Errno::EINPROGRESS - a blocking Windows Sockets 1.1 call is in progress or - * the service provider is still processing a callback function - * * Errno::EINVAL - +socket+ has not been bound with a call to _bind_, or an - * unknown flag was specified, or MSG_OOB was specified for a socket with - * SO_OOBINLINE enabled, or (for byte stream-style sockets only) the internal - * len parameter on +socket+ was zero or negative - * * Errno::EISCONN - +socket+ is already connected. The call to _recvfrom_ is - * not permitted with a connected socket on a socket that is connetion - * oriented or connectionless. - * * Errno::ENETRESET - the connection has been broken due to the keep-alive - * activity detecting a failure while the operation was in progress. - * * Errno::EOPNOTSUPP - MSG_OOB was specified, but +socket+ is not stream-style - * such as type SOCK_STREAM. OOB data is not supported in the communication - * domain associated with +socket+, or +socket+ is unidirectional and - * supports only send operations - * * Errno::ESHUTDOWN - +socket+ has been shutdown. It is not possible to - * call _recvfrom_ on a socket after _shutdown_ has been invoked. - * * Errno::EWOULDBLOCK - +socket+ is marked as nonblocking and a call to - * _recvfrom_ would block. - * * Errno::EMSGSIZE - the message was too large to fit into the specified buffer - * and was truncated. - * * Errno::ETIMEDOUT - the connection has been dropped, because of a network - * failure or because the system on the other end went down without - * notice - * * Errno::ECONNRESET - the virtual circuit was reset by the remote side - * executing a hard or abortive close. The application should close the - * socket; it is no longer usable. On a UDP-datagram socket this error - * indicates a previous send operation resulted in an ICMP Port Unreachable - * message. - */ -static VALUE -sock_recvfrom(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom(sock, argc, argv, RECV_SOCKET); -} - -/* - * call-seq: - * socket.recvfrom_nonblock(maxlen) => [mesg, sender_sockaddr] - * socket.recvfrom_nonblock(maxlen, flags) => [mesg, sender_sockaddr] - * - * Receives up to _maxlen_ bytes from +socket+ using recvfrom(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * _flags_ is zero or more of the +MSG_+ options. - * The first element of the results, _mesg_, is the data received. - * The second element, _sender_sockaddr_, contains protocol-specific information - * on the sender. - * - * When recvfrom(2) returns 0, Socket#recvfrom_nonblock returns - * an empty string as data. - * The meaning depends on the socket: EOF on TCP, empty packet on UDP, etc. - * - * === Parameters - * * +maxlen+ - the number of bytes to receive from the socket - * * +flags+ - zero or more of the +MSG_+ options - * - * === Example - * # In one file, start this first - * require 'socket' - * include Socket::Constants - * socket = Socket.new(AF_INET, SOCK_STREAM, 0) - * sockaddr = Socket.sockaddr_in(2200, 'localhost') - * socket.bind(sockaddr) - * socket.listen(5) - * client, client_sockaddr = socket.accept - * begin - * pair = client.recvfrom_nonblock(20) - * rescue Errno::EAGAIN, Errno::EWOULDBLOCK - * IO.select([client]) - * retry - * end - * data = pair[0].chomp - * puts "I only received 20 bytes '#{data}'" - * sleep 1 - * socket.close - * - * # In another file, start this second - * require 'socket' - * include Socket::Constants - * socket = Socket.new(AF_INET, SOCK_STREAM, 0) - * sockaddr = Socket.sockaddr_in(2200, 'localhost') - * socket.connect(sockaddr) - * socket.puts "Watch this get cut short!" - * socket.close - * - * Refer to Socket#recvfrom for the exceptions that may be thrown if the call - * to _recvfrom_nonblock_ fails. - * - * Socket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * Socket#recvfrom - */ -static VALUE -sock_recvfrom_nonblock(int argc, VALUE *argv, VALUE sock) -{ - return s_recvfrom_nonblock(sock, argc, argv, RECV_SOCKET); -} - -static VALUE -sock_accept(VALUE sock) -{ - rb_io_t *fptr; - VALUE sock2; - char buf[1024]; - socklen_t len = sizeof buf; - - GetOpenFile(sock, fptr); - sock2 = s_accept(rb_cSocket,fptr->fd,(struct sockaddr*)buf,&len); - - return rb_assoc_new(sock2, rb_str_new(buf, len)); -} - -/* - * call-seq: - * socket.accept_nonblock => [client_socket, client_sockaddr] - * - * Accepts an incoming connection using accept(2) after - * O_NONBLOCK is set for the underlying file descriptor. - * It returns an array containg the accpeted socket - * for the incoming connection, _client_socket_, - * and a string that contains the +struct+ sockaddr information - * about the caller, _client_sockaddr_. - * - * === Example - * # In one script, start this first - * require 'socket' - * include Socket::Constants - * socket = Socket.new(AF_INET, SOCK_STREAM, 0) - * sockaddr = Socket.sockaddr_in(2200, 'localhost') - * socket.bind(sockaddr) - * socket.listen(5) - * begin - * client_socket, client_sockaddr = socket.accept_nonblock - * rescue Errno::EAGAIN, Errno::EWOULDBLOCK, Errno::ECONNABORTED, Errno::EPROTO, Errno::EINTR - * IO.select([socket]) - * retry - * end - * puts "The client said, '#{client_socket.readline.chomp}'" - * client_socket.puts "Hello from script one!" - * socket.close - * - * # In another script, start this second - * require 'socket' - * include Socket::Constants - * socket = Socket.new(AF_INET, SOCK_STREAM, 0) - * sockaddr = Socket.sockaddr_in(2200, 'localhost') - * socket.connect(sockaddr) - * socket.puts "Hello from script 2." - * puts "The server said, '#{socket.readline.chomp}'" - * socket.close - * - * Refer to Socket#accept for the exceptions that may be thrown if the call - * to _accept_nonblock_ fails. - * - * Socket#accept_nonblock may raise any error corresponding to accept(2) failure, - * including Errno::EWOULDBLOCK. - * - * === See - * * Socket#accept - */ -static VALUE -sock_accept_nonblock(VALUE sock) -{ - rb_io_t *fptr; - VALUE sock2; - char buf[1024]; - socklen_t len = sizeof buf; - - GetOpenFile(sock, fptr); - sock2 = s_accept_nonblock(rb_cSocket, fptr, (struct sockaddr *)buf, &len); - return rb_assoc_new(sock2, rb_str_new(buf, len)); -} - -/* - * call-seq: - * socket.sysaccept => [client_socket_fd, client_sockaddr] - * - * Accepts an incoming connection returnings an array containg the (integer) - * file descriptor for the incoming connection, _client_socket_fd_, - * and a string that contains the +struct+ sockaddr information - * about the caller, _client_sockaddr_. - * - * === Example - * # In one script, start this first - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.bind( sockaddr ) - * socket.listen( 5 ) - * client_fd, client_sockaddr = socket.sysaccept - * client_socket = Socket.for_fd( client_fd ) - * puts "The client said, '#{client_socket.readline.chomp}'" - * client_socket.puts "Hello from script one!" - * socket.close - * - * # In another script, start this second - * require 'socket' - * include Socket::Constants - * socket = Socket.new( AF_INET, SOCK_STREAM, 0 ) - * sockaddr = Socket.pack_sockaddr_in( 2200, 'localhost' ) - * socket.connect( sockaddr ) - * socket.puts "Hello from script 2." - * puts "The server said, '#{socket.readline.chomp}'" - * socket.close - * - * Refer to Socket#accept for the exceptions that may be thrown if the call - * to _sysaccept_ fails. - * - * === See - * * Socket#accept - */ -static VALUE -sock_sysaccept(VALUE sock) -{ - rb_io_t *fptr; - VALUE sock2; - char buf[1024]; - socklen_t len = sizeof buf; - - GetOpenFile(sock, fptr); - sock2 = s_accept(0,fptr->fd,(struct sockaddr*)buf,&len); - - return rb_assoc_new(sock2, rb_str_new(buf, len)); -} - -#ifdef HAVE_GETHOSTNAME -static VALUE -sock_gethostname(VALUE obj) -{ - char buf[1024]; - - rb_secure(3); - if (gethostname(buf, (int)sizeof buf - 1) < 0) - rb_sys_fail("gethostname"); - - buf[sizeof buf - 1] = '\0'; - return rb_str_new2(buf); -} -#else -#ifdef HAVE_UNAME - -#include <sys/utsname.h> - -static VALUE -sock_gethostname(VALUE obj) -{ - struct utsname un; - - rb_secure(3); - uname(&un); - return rb_str_new2(un.nodename); -} -#else -static VALUE -sock_gethostname(VALUE obj) -{ - rb_notimplement(); -} -#endif -#endif - -static VALUE -make_addrinfo(struct addrinfo *res0) -{ - VALUE base, ary; - struct addrinfo *res; - - if (res0 == NULL) { - rb_raise(rb_eSocket, "host not found"); - } - base = rb_ary_new(); - for (res = res0; res; res = res->ai_next) { - ary = ipaddr(res->ai_addr, do_not_reverse_lookup); - if (res->ai_canonname) { - RARRAY_PTR(ary)[2] = rb_str_new2(res->ai_canonname); - } - rb_ary_push(ary, INT2FIX(res->ai_family)); - rb_ary_push(ary, INT2FIX(res->ai_socktype)); - rb_ary_push(ary, INT2FIX(res->ai_protocol)); - rb_ary_push(base, ary); - } - return base; -} - -static VALUE -sock_sockaddr(struct sockaddr *addr, size_t len) -{ - char *ptr; - - switch (addr->sa_family) { - case AF_INET: - ptr = (char*)&((struct sockaddr_in*)addr)->sin_addr.s_addr; - len = sizeof(((struct sockaddr_in*)addr)->sin_addr.s_addr); - break; -#ifdef INET6 - case AF_INET6: - ptr = (char*)&((struct sockaddr_in6*)addr)->sin6_addr.s6_addr; - len = sizeof(((struct sockaddr_in6*)addr)->sin6_addr.s6_addr); - break; -#endif - default: - rb_raise(rb_eSocket, "unknown socket family:%d", addr->sa_family); - break; - } - return rb_str_new(ptr, len); -} - -static VALUE -sock_s_gethostbyname(VALUE obj, VALUE host) -{ - rb_secure(3); - return make_hostent(host, sock_addrinfo(host, Qnil, SOCK_STREAM, AI_CANONNAME), sock_sockaddr); -} - -static VALUE -sock_s_gethostbyaddr(int argc, VALUE *argv) -{ - VALUE addr, type; - struct hostent *h; - struct sockaddr *sa; - char **pch; - VALUE ary, names; - int t = AF_INET; - - rb_scan_args(argc, argv, "11", &addr, &type); - sa = (struct sockaddr*)StringValuePtr(addr); - if (!NIL_P(type)) { - t = NUM2INT(type); - } -#ifdef INET6 - else if (RSTRING_LEN(addr) == 16) { - t = AF_INET6; - } -#endif - h = gethostbyaddr(RSTRING_PTR(addr), RSTRING_LEN(addr), t); - if (h == NULL) { -#ifdef HAVE_HSTRERROR - extern int h_errno; - rb_raise(rb_eSocket, "%s", (char*)hstrerror(h_errno)); -#else - rb_raise(rb_eSocket, "host not found"); -#endif - } - ary = rb_ary_new(); - rb_ary_push(ary, rb_str_new2(h->h_name)); - names = rb_ary_new(); - rb_ary_push(ary, names); - if (h->h_aliases != NULL) { - for (pch = h->h_aliases; *pch; pch++) { - rb_ary_push(names, rb_str_new2(*pch)); - } - } - rb_ary_push(ary, INT2NUM(h->h_addrtype)); -#ifdef h_addr - for (pch = h->h_addr_list; *pch; pch++) { - rb_ary_push(ary, rb_str_new(*pch, h->h_length)); - } -#else - rb_ary_push(ary, rb_str_new(h->h_addr, h->h_length)); -#endif - - return ary; -} - -static VALUE -sock_s_getservbyname(int argc, VALUE *argv) -{ - VALUE service, proto; - struct servent *sp; - int port; - - rb_scan_args(argc, argv, "11", &service, &proto); - if (NIL_P(proto)) proto = rb_str_new2("tcp"); - StringValue(service); - StringValue(proto); - - sp = getservbyname(StringValueCStr(service), StringValueCStr(proto)); - if (sp) { - port = ntohs(sp->s_port); - } - else { - char *s = RSTRING_PTR(service); - char *end; - - port = STRTOUL(s, &end, 0); - if (*end != '\0') { - rb_raise(rb_eSocket, "no such service %s/%s", s, RSTRING_PTR(proto)); - } - } - return INT2FIX(port); -} - -static VALUE -sock_s_getservbyport(int argc, VALUE *argv) -{ - VALUE port, proto; - struct servent *sp; - - rb_scan_args(argc, argv, "11", &port, &proto); - if (NIL_P(proto)) proto = rb_str_new2("tcp"); - StringValue(proto); - - sp = getservbyport(NUM2INT(port), StringValueCStr(proto)); - if (!sp) { - rb_raise(rb_eSocket, "no such service for port %d/%s", NUM2INT(port), RSTRING_PTR(proto)); - } - return rb_tainted_str_new2(sp->s_name); -} - -static VALUE -sock_s_getaddrinfo(int argc, VALUE *argv) -{ - VALUE host, port, family, socktype, protocol, flags, ret; - char hbuf[1024], pbuf[1024]; - char *hptr, *pptr, *ap; - struct addrinfo hints, *res; - int error; - - host = port = family = socktype = protocol = flags = Qnil; - rb_scan_args(argc, argv, "24", &host, &port, &family, &socktype, &protocol, &flags); - if (NIL_P(host)) { - hptr = NULL; - } - else { - strncpy(hbuf, StringValuePtr(host), sizeof(hbuf)); - hbuf[sizeof(hbuf) - 1] = '\0'; - hptr = hbuf; - } - if (NIL_P(port)) { - pptr = NULL; - } - else if (FIXNUM_P(port)) { - snprintf(pbuf, sizeof(pbuf), "%ld", FIX2LONG(port)); - pptr = pbuf; - } - else { - strncpy(pbuf, StringValuePtr(port), sizeof(pbuf)); - pbuf[sizeof(pbuf) - 1] = '\0'; - pptr = pbuf; - } - - MEMZERO(&hints, struct addrinfo, 1); - if (NIL_P(family)) { - hints.ai_family = PF_UNSPEC; - } - else if (FIXNUM_P(family)) { - hints.ai_family = FIX2INT(family); - } - else if ((ap = StringValuePtr(family)) != 0) { - if (strcmp(ap, "AF_INET") == 0) { - hints.ai_family = PF_INET; - } -#ifdef INET6 - else if (strcmp(ap, "AF_INET6") == 0) { - hints.ai_family = PF_INET6; - } -#endif - } - - if (!NIL_P(socktype)) { - hints.ai_socktype = NUM2INT(socktype); - } - if (!NIL_P(protocol)) { - hints.ai_protocol = NUM2INT(protocol); - } - if (!NIL_P(flags)) { - hints.ai_flags = NUM2INT(flags); - } - error = getaddrinfo(hptr, pptr, &hints, &res); - if (error) { - raise_socket_error("getaddrinfo", error); - } - - ret = make_addrinfo(res); - freeaddrinfo(res); - return ret; -} - -static VALUE -sock_s_getnameinfo(int argc, VALUE *argv) -{ - VALUE sa, af = Qnil, host = Qnil, port = Qnil, flags, tmp; - char *hptr, *pptr; - char hbuf[1024], pbuf[1024]; - int fl; - struct addrinfo hints, *res = NULL, *r; - int error; - struct sockaddr_storage ss; - struct sockaddr *sap; - char *ap; - - sa = flags = Qnil; - rb_scan_args(argc, argv, "11", &sa, &flags); - - fl = 0; - if (!NIL_P(flags)) { - fl = NUM2INT(flags); - } - tmp = rb_check_string_type(sa); - if (!NIL_P(tmp)) { - sa = tmp; - if (sizeof(ss) < RSTRING_LEN(sa)) { - rb_raise(rb_eTypeError, "sockaddr length too big"); - } - memcpy(&ss, RSTRING_PTR(sa), RSTRING_LEN(sa)); - if (RSTRING_LEN(sa) != SA_LEN((struct sockaddr*)&ss)) { - rb_raise(rb_eTypeError, "sockaddr size differs - should not happen"); - } - sap = (struct sockaddr*)&ss; - goto call_nameinfo; - } - tmp = rb_check_array_type(sa); - if (!NIL_P(tmp)) { - sa = tmp; - MEMZERO(&hints, struct addrinfo, 1); - if (RARRAY_LEN(sa) == 3) { - af = RARRAY_PTR(sa)[0]; - port = RARRAY_PTR(sa)[1]; - host = RARRAY_PTR(sa)[2]; - } - else if (RARRAY_LEN(sa) >= 4) { - af = RARRAY_PTR(sa)[0]; - port = RARRAY_PTR(sa)[1]; - host = RARRAY_PTR(sa)[3]; - if (NIL_P(host)) { - host = RARRAY_PTR(sa)[2]; - } - else { - /* - * 4th element holds numeric form, don't resolve. - * see ipaddr(). - */ -#ifdef AI_NUMERICHOST /* AIX 4.3.3 doesn't have AI_NUMERICHOST. */ - hints.ai_flags |= AI_NUMERICHOST; -#endif - } - } - else { - rb_raise(rb_eArgError, "array size should be 3 or 4, %ld given", - RARRAY_LEN(sa)); - } - /* host */ - if (NIL_P(host)) { - hptr = NULL; - } - else { - strncpy(hbuf, StringValuePtr(host), sizeof(hbuf)); - hbuf[sizeof(hbuf) - 1] = '\0'; - hptr = hbuf; - } - /* port */ - if (NIL_P(port)) { - strcpy(pbuf, "0"); - pptr = NULL; - } - else if (FIXNUM_P(port)) { - snprintf(pbuf, sizeof(pbuf), "%ld", NUM2LONG(port)); - pptr = pbuf; - } - else { - strncpy(pbuf, StringValuePtr(port), sizeof(pbuf)); - pbuf[sizeof(pbuf) - 1] = '\0'; - pptr = pbuf; - } - hints.ai_socktype = (fl & NI_DGRAM) ? SOCK_DGRAM : SOCK_STREAM; - /* af */ - if (NIL_P(af)) { - hints.ai_family = PF_UNSPEC; - } - else if (FIXNUM_P(af)) { - hints.ai_family = FIX2INT(af); - } - else if ((ap = StringValuePtr(af)) != 0) { - if (strcmp(ap, "AF_INET") == 0) { - hints.ai_family = PF_INET; - } -#ifdef INET6 - else if (strcmp(ap, "AF_INET6") == 0) { - hints.ai_family = PF_INET6; - } -#endif - } - error = getaddrinfo(hptr, pptr, &hints, &res); - if (error) goto error_exit_addr; - sap = res->ai_addr; - } - else { - rb_raise(rb_eTypeError, "expecting String or Array"); - } - - call_nameinfo: - error = getnameinfo(sap, SA_LEN(sap), hbuf, sizeof(hbuf), - pbuf, sizeof(pbuf), fl); - if (error) goto error_exit_name; - if (res) { - for (r = res->ai_next; r; r = r->ai_next) { - char hbuf2[1024], pbuf2[1024]; - - sap = r->ai_addr; - error = getnameinfo(sap, SA_LEN(sap), hbuf2, sizeof(hbuf2), - pbuf2, sizeof(pbuf2), fl); - if (error) goto error_exit_name; - if (strcmp(hbuf, hbuf2) != 0|| strcmp(pbuf, pbuf2) != 0) { - freeaddrinfo(res); - rb_raise(rb_eSocket, "sockaddr resolved to multiple nodename"); - } - } - freeaddrinfo(res); - } - return rb_assoc_new(rb_str_new2(hbuf), rb_str_new2(pbuf)); - - error_exit_addr: - if (res) freeaddrinfo(res); - raise_socket_error("getaddrinfo", error); - - error_exit_name: - if (res) freeaddrinfo(res); - raise_socket_error("getnameinfo", error); -} - -static VALUE -sock_s_pack_sockaddr_in(VALUE self, VALUE port, VALUE host) -{ - struct addrinfo *res = sock_addrinfo(host, port, 0, 0); - VALUE addr = rb_str_new((char*)res->ai_addr, res->ai_addrlen); - - freeaddrinfo(res); - OBJ_INFECT(addr, port); - OBJ_INFECT(addr, host); - - return addr; -} - -static VALUE -sock_s_unpack_sockaddr_in(VALUE self, VALUE addr) -{ - struct sockaddr_in * sockaddr; - VALUE host; - - sockaddr = (struct sockaddr_in*)StringValuePtr(addr); - if (((struct sockaddr *)sockaddr)->sa_family != AF_INET -#ifdef INET6 - && ((struct sockaddr *)sockaddr)->sa_family != AF_INET6 -#endif - ) { -#ifdef INET6 - rb_raise(rb_eArgError, "not an AF_INET/AF_INET6 sockaddr"); -#else - rb_raise(rb_eArgError, "not an AF_INET sockaddr"); -#endif - } - host = make_ipaddr((struct sockaddr*)sockaddr); - OBJ_INFECT(host, addr); - return rb_assoc_new(INT2NUM(ntohs(sockaddr->sin_port)), host); -} - -#ifdef HAVE_SYS_UN_H -static VALUE -sock_s_pack_sockaddr_un(VALUE self, VALUE path) -{ - struct sockaddr_un sockaddr; - char *sun_path; - VALUE addr; - - MEMZERO(&sockaddr, struct sockaddr_un, 1); - sockaddr.sun_family = AF_UNIX; - sun_path = StringValueCStr(path); - if (sizeof(sockaddr.sun_path) <= strlen(sun_path)) { - rb_raise(rb_eArgError, "too long unix socket path (max: %dbytes)", - (int)sizeof(sockaddr.sun_path)-1); - } - strncpy(sockaddr.sun_path, sun_path, sizeof(sockaddr.sun_path)-1); - addr = rb_str_new((char*)&sockaddr, sizeof(sockaddr)); - OBJ_INFECT(addr, path); - - return addr; -} - -static VALUE -sock_s_unpack_sockaddr_un(VALUE self, VALUE addr) -{ - struct sockaddr_un * sockaddr; - const char *sun_path; - VALUE path; - - sockaddr = (struct sockaddr_un*)StringValuePtr(addr); - if (((struct sockaddr *)sockaddr)->sa_family != AF_UNIX) { - rb_raise(rb_eArgError, "not an AF_UNIX sockaddr"); - } - if (sizeof(struct sockaddr_un) < RSTRING_LEN(addr)) { - rb_raise(rb_eTypeError, "too long sockaddr_un - %ld longer than %d", - RSTRING_LEN(addr), (int)sizeof(struct sockaddr_un)); - } - sun_path = unixpath(sockaddr, RSTRING_LEN(addr)); - if (sizeof(struct sockaddr_un) == RSTRING_LEN(addr) && - sun_path == sockaddr->sun_path && - sun_path + strlen(sun_path) == RSTRING_PTR(addr) + RSTRING_LEN(addr)) { - rb_raise(rb_eArgError, "sockaddr_un.sun_path not NUL terminated"); - } - path = rb_str_new2(sun_path); - OBJ_INFECT(path, addr); - return path; -} -#endif - -static VALUE mConst; - -static void -sock_define_const(const char *name, int value) -{ - rb_define_const(rb_cSocket, name, INT2FIX(value)); - rb_define_const(mConst, name, INT2FIX(value)); -} - -/* - * Class +Socket+ provides access to the underlying operating system - * socket implementations. It can be used to provide more operating system - * specific functionality than the protocol-specific socket classes but at the - * expense of greater complexity. In particular, the class handles addresses - * using +struct+ sockaddr structures packed into Ruby strings, which can be - * a joy to manipulate. - * - * === Exception Handling - * Ruby's implementation of +Socket+ causes an exception to be raised - * based on the error generated by the system dependent implementation. - * This is why the methods are documented in a way that isolate - * Unix-based system exceptions from Windows based exceptions. If more - * information on particular exception is needed please refer to the - * Unix manual pages or the Windows WinSock reference. - * - * - * === Documentation by - * * Zach Dennis - * * Sam Roberts - * * <em>Programming Ruby</em> from The Pragmatic Bookshelf. - * - * Much material in this documentation is taken with permission from - * <em>Programming Ruby</em> from The Pragmatic Bookshelf. - */ -void -Init_socket() -{ - rb_eSocket = rb_define_class("SocketError", rb_eStandardError); - - rb_cBasicSocket = rb_define_class("BasicSocket", rb_cIO); - rb_undef_method(rb_cBasicSocket, "initialize"); - - rb_define_singleton_method(rb_cBasicSocket, "do_not_reverse_lookup", - bsock_do_not_rev_lookup, 0); - rb_define_singleton_method(rb_cBasicSocket, "do_not_reverse_lookup=", - bsock_do_not_rev_lookup_set, 1); - rb_define_singleton_method(rb_cBasicSocket, "for_fd", bsock_s_for_fd, 1); - - rb_define_method(rb_cBasicSocket, "close_read", bsock_close_read, 0); - rb_define_method(rb_cBasicSocket, "close_write", bsock_close_write, 0); - rb_define_method(rb_cBasicSocket, "shutdown", bsock_shutdown, -1); - rb_define_method(rb_cBasicSocket, "setsockopt", bsock_setsockopt, 3); - rb_define_method(rb_cBasicSocket, "getsockopt", bsock_getsockopt, 2); - rb_define_method(rb_cBasicSocket, "getsockname", bsock_getsockname, 0); - rb_define_method(rb_cBasicSocket, "getpeername", bsock_getpeername, 0); - rb_define_method(rb_cBasicSocket, "send", bsock_send, -1); - rb_define_method(rb_cBasicSocket, "recv", bsock_recv, -1); - rb_define_method(rb_cBasicSocket, "recv_nonblock", bsock_recv_nonblock, -1); - rb_define_method(rb_cBasicSocket, "do_not_reverse_lookup", bsock_do_not_reverse_lookup, 0); - rb_define_method(rb_cBasicSocket, "do_not_reverse_lookup=", bsock_do_not_reverse_lookup_set, 1); - - 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); - - rb_cTCPSocket = rb_define_class("TCPSocket", rb_cIPSocket); - rb_define_singleton_method(rb_cTCPSocket, "gethostbyname", tcp_s_gethostbyname, 1); - rb_define_method(rb_cTCPSocket, "initialize", tcp_init, -1); - -#ifdef SOCKS - rb_cSOCKSSocket = rb_define_class("SOCKSSocket", rb_cTCPSocket); - rb_define_method(rb_cSOCKSSocket, "initialize", socks_init, 2); -#ifdef SOCKS5 - rb_define_method(rb_cSOCKSSocket, "close", socks_s_close, 0); -#endif -#endif - - rb_cTCPServer = rb_define_class("TCPServer", rb_cTCPSocket); - rb_define_method(rb_cTCPServer, "accept", tcp_accept, 0); - rb_define_method(rb_cTCPServer, "accept_nonblock", tcp_accept_nonblock, 0); - rb_define_method(rb_cTCPServer, "sysaccept", tcp_sysaccept, 0); - rb_define_method(rb_cTCPServer, "initialize", tcp_svr_init, -1); - rb_define_method(rb_cTCPServer, "listen", sock_listen, 1); - - rb_cUDPSocket = rb_define_class("UDPSocket", rb_cIPSocket); - rb_define_method(rb_cUDPSocket, "initialize", udp_init, -1); - rb_define_method(rb_cUDPSocket, "connect", udp_connect, 2); - rb_define_method(rb_cUDPSocket, "bind", udp_bind, 2); - rb_define_method(rb_cUDPSocket, "send", udp_send, -1); - rb_define_method(rb_cUDPSocket, "recvfrom_nonblock", udp_recvfrom_nonblock, -1); - -#ifdef HAVE_SYS_UN_H - rb_cUNIXSocket = rb_define_class("UNIXSocket", rb_cBasicSocket); - rb_define_method(rb_cUNIXSocket, "initialize", unix_init, 1); - rb_define_method(rb_cUNIXSocket, "path", unix_path, 0); - rb_define_method(rb_cUNIXSocket, "addr", unix_addr, 0); - rb_define_method(rb_cUNIXSocket, "peeraddr", unix_peeraddr, 0); - rb_define_method(rb_cUNIXSocket, "recvfrom", unix_recvfrom, -1); - rb_define_method(rb_cUNIXSocket, "send_io", unix_send_io, 1); - rb_define_method(rb_cUNIXSocket, "recv_io", unix_recv_io, -1); - rb_define_singleton_method(rb_cUNIXSocket, "socketpair", unix_s_socketpair, -1); - rb_define_singleton_method(rb_cUNIXSocket, "pair", unix_s_socketpair, -1); - - rb_cUNIXServer = rb_define_class("UNIXServer", rb_cUNIXSocket); - rb_define_method(rb_cUNIXServer, "initialize", unix_svr_init, 1); - rb_define_method(rb_cUNIXServer, "accept", unix_accept, 0); - rb_define_method(rb_cUNIXServer, "accept_nonblock", unix_accept_nonblock, 0); - rb_define_method(rb_cUNIXServer, "sysaccept", unix_sysaccept, 0); - rb_define_method(rb_cUNIXServer, "listen", sock_listen, 1); -#endif - - rb_cSocket = rb_define_class("Socket", rb_cBasicSocket); - - rb_define_method(rb_cSocket, "initialize", sock_initialize, 3); - rb_define_method(rb_cSocket, "connect", sock_connect, 1); - rb_define_method(rb_cSocket, "connect_nonblock", sock_connect_nonblock, 1); - rb_define_method(rb_cSocket, "bind", sock_bind, 1); - rb_define_method(rb_cSocket, "listen", sock_listen, 1); - rb_define_method(rb_cSocket, "accept", sock_accept, 0); - rb_define_method(rb_cSocket, "accept_nonblock", sock_accept_nonblock, 0); - rb_define_method(rb_cSocket, "sysaccept", sock_sysaccept, 0); - - rb_define_method(rb_cSocket, "recvfrom", sock_recvfrom, -1); - rb_define_method(rb_cSocket, "recvfrom_nonblock", sock_recvfrom_nonblock, -1); - - rb_define_singleton_method(rb_cSocket, "socketpair", sock_s_socketpair, 3); - rb_define_singleton_method(rb_cSocket, "pair", sock_s_socketpair, 3); - rb_define_singleton_method(rb_cSocket, "gethostname", sock_gethostname, 0); - rb_define_singleton_method(rb_cSocket, "gethostbyname", sock_s_gethostbyname, 1); - rb_define_singleton_method(rb_cSocket, "gethostbyaddr", sock_s_gethostbyaddr, -1); - rb_define_singleton_method(rb_cSocket, "getservbyname", sock_s_getservbyname, -1); - rb_define_singleton_method(rb_cSocket, "getservbyport", sock_s_getservbyport, -1); - rb_define_singleton_method(rb_cSocket, "getaddrinfo", sock_s_getaddrinfo, -1); - rb_define_singleton_method(rb_cSocket, "getnameinfo", sock_s_getnameinfo, -1); - rb_define_singleton_method(rb_cSocket, "sockaddr_in", sock_s_pack_sockaddr_in, 2); - rb_define_singleton_method(rb_cSocket, "pack_sockaddr_in", sock_s_pack_sockaddr_in, 2); - rb_define_singleton_method(rb_cSocket, "unpack_sockaddr_in", sock_s_unpack_sockaddr_in, 1); -#ifdef HAVE_SYS_UN_H - rb_define_singleton_method(rb_cSocket, "sockaddr_un", sock_s_pack_sockaddr_un, 1); - rb_define_singleton_method(rb_cSocket, "pack_sockaddr_un", sock_s_pack_sockaddr_un, 1); - rb_define_singleton_method(rb_cSocket, "unpack_sockaddr_un", sock_s_unpack_sockaddr_un, 1); -#endif - - /* constants */ - mConst = rb_define_module_under(rb_cSocket, "Constants"); -#include "constants.h" -#ifdef INET6 /* IPv6 is not supported although AF_INET6 is defined on bcc32/mingw */ - sock_define_const("AF_INET6", AF_INET6); - sock_define_const("PF_INET6", PF_INET6); -#endif -} |