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ruby/ext/socket/socket.c

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C
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/************************************************
socket.c -
$Author$
$Date$
created at: Thu Mar 31 12:21:29 JST 1994
Copyright (C) 1993-2001 Yukihiro Matsumoto
************************************************/
#include "ruby.h"
#include "rubyio.h"
#include "rubysig.h"
#include <stdio.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifndef NT
#if defined(__BEOS__)
# include <net/socket.h>
#else
# include <sys/socket.h>
#endif
#include <netinet/in.h>
#ifdef HAVE_NETINET_TCP_H
# include <netinet/tcp.h>
#endif
#ifdef HAVE_NETINET_UDP_H
# include <netinet/udp.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
#include <sys/types.h>
#include <sys/time.h>
#include <fcntl.h>
#endif
#ifndef EWOULDBLOCK
#define EWOULDBLOCK EAGAIN
#endif
#ifndef HAVE_GETADDRINFO
# include "addrinfo.h"
#endif
#include "sockport.h"
static int do_not_reverse_lookup = 0;
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 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
rb_getaddrinfo(nodename, servname, hints, res)
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) rb_getaddrinfo((node),(serv),(hints),(res))
#endif
#ifdef NT
static void sock_finalize _((OpenFile *fptr));
static void
sock_finalize(fptr)
OpenFile *fptr;
{
SOCKET s;
if (!fptr->f) return;
s = get_osfhandle(fileno(fptr->f));
myfdclose(fptr->f);
if (fptr->f2) myfdclose(fptr->f2);
closesocket(s);
}
#endif
static VALUE
sock_new(class, fd)
VALUE class;
int fd;
{
OpenFile *fp;
NEWOBJ(sock, struct RFile);
OBJSETUP(sock, class, T_FILE);
MakeOpenFile(sock, fp);
fp->f = rb_fdopen(fd, "r");
#ifdef NT
fp->finalize = sock_finalize;
#else
#endif
fp->f2 = rb_fdopen(fd, "w");
fp->mode = FMODE_READWRITE;
rb_io_synchronized(fp);
return (VALUE)sock;
}
static VALUE
bsock_shutdown(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
VALUE howto;
int how;
OpenFile *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(fileno(fptr->f), how) == -1)
rb_sys_fail(0);
return INT2FIX(0);
}
static VALUE
bsock_close_read(sock)
VALUE sock;
{
OpenFile *fptr;
if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) {
rb_raise(rb_eSecurityError, "Insecure: can't close socket");
}
GetOpenFile(sock, fptr);
shutdown(fileno(fptr->f), 0);
if (!(fptr->mode & FMODE_WRITABLE)) {
return rb_io_close(sock);
}
fptr->mode &= ~FMODE_READABLE;
return Qnil;
}
static VALUE
bsock_close_write(sock)
VALUE sock;
{
OpenFile *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(fileno(fptr->f2), 1);
fptr->mode &= ~FMODE_WRITABLE;
return Qnil;
}
static VALUE
bsock_setsockopt(sock, lev, optname, val)
VALUE sock, lev, optname, val;
{
int level, option;
OpenFile *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(val)->ptr;
vlen = RSTRING(val)->len;
break;
}
GetOpenFile(sock, fptr);
if (setsockopt(fileno(fptr->f), level, option, v, vlen) < 0)
rb_sys_fail(fptr->path);
return INT2FIX(0);
}
static VALUE
bsock_getsockopt(sock, lev, optname)
VALUE sock, lev, optname;
{
#if !defined(__BEOS__)
int level, option;
socklen_t len;
char *buf;
OpenFile *fptr;
level = NUM2INT(lev);
option = NUM2INT(optname);
len = 256;
buf = ALLOCA_N(char,len);
GetOpenFile(sock, fptr);
if (getsockopt(fileno(fptr->f), level, option, buf, &len) < 0)
rb_sys_fail(fptr->path);
return rb_tainted_str_new(buf, len);
#else
rb_notimplement();
#endif
}
static VALUE
bsock_getsockname(sock)
VALUE sock;
{
char buf[1024];
socklen_t len = sizeof buf;
OpenFile *fptr;
GetOpenFile(sock, fptr);
if (getsockname(fileno(fptr->f), (struct sockaddr*)buf, &len) < 0)
rb_sys_fail("getsockname(2)");
return rb_tainted_str_new(buf, len);
}
static VALUE
bsock_getpeername(sock)
VALUE sock;
{
char buf[1024];
socklen_t len = sizeof buf;
OpenFile *fptr;
GetOpenFile(sock, fptr);
if (getpeername(fileno(fptr->f), (struct sockaddr*)buf, &len) < 0)
rb_sys_fail("getpeername(2)");
return rb_tainted_str_new(buf, len);
}
static VALUE
bsock_send(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
VALUE mesg, to;
VALUE flags;
OpenFile *fptr;
FILE *f;
int fd, n;
rb_secure(4);
rb_scan_args(argc, argv, "21", &mesg, &flags, &to);
GetOpenFile(sock, fptr);
f = GetWriteFile(fptr);
fd = fileno(f);
retry:
rb_thread_fd_writable(fd);
StringValue(mesg);
if (!NIL_P(to)) {
StringValue(to);
n = sendto(fd, RSTRING(mesg)->ptr, RSTRING(mesg)->len, NUM2INT(flags),
(struct sockaddr*)RSTRING(to)->ptr, RSTRING(to)->len);
}
else {
n = send(fd, RSTRING(mesg)->ptr, RSTRING(mesg)->len, NUM2INT(flags));
}
if (n < 0) {
switch (errno) {
case EINTR:
rb_thread_schedule();
goto retry;
case EWOULDBLOCK:
#if EAGAIN != EWOULDBLOCK
case EAGAIN:
#endif
rb_thread_fd_writable(fd);
goto retry;
}
rb_sys_fail("send(2)");
}
return INT2FIX(n);
}
static VALUE ipaddr _((struct sockaddr *));
#ifdef HAVE_SYS_UN_H
static VALUE unixaddr _((struct sockaddr_un *));
#endif
enum sock_recv_type {
RECV_RECV, /* BasicSocket#recv(no from) */
RECV_IP, /* IPSocket#recvfrom */
RECV_UNIX, /* UNIXSocket#recvfrom */
RECV_SOCKET /* Socket#recvfrom */
};
static VALUE
s_recvfrom(sock, argc, argv, from)
VALUE sock;
int argc;
VALUE *argv;
enum sock_recv_type from;
{
OpenFile *fptr;
VALUE str;
char buf[1024];
socklen_t alen = sizeof buf;
VALUE len, flg;
int fd, flags;
rb_scan_args(argc, argv, "11", &len, &flg);
if (flg == Qnil) flags = 0;
else flags = NUM2INT(flg);
GetOpenFile(sock, fptr);
if (rb_read_pending(fptr->f)) {
rb_raise(rb_eIOError, "recv for buffered IO");
}
fd = fileno(fptr->f);
str = rb_tainted_str_new(0, NUM2INT(len));
rb_thread_wait_fd(fd);
retry:
TRAP_BEG;
RSTRING(str)->len = recvfrom(fd, RSTRING(str)->ptr, RSTRING(str)->len, flags,
(struct sockaddr*)buf, &alen);
TRAP_END;
if (RSTRING(str)->len < 0) {
switch (errno) {
case EINTR:
rb_thread_schedule();
goto retry;
case EWOULDBLOCK:
#if EAGAIN != EWOULDBLOCK
case EAGAIN:
#endif
rb_thread_wait_fd(fd);
goto retry;
}
rb_sys_fail("recvfrom(2)");
}
rb_obj_taint(str);
switch (from) {
case RECV_RECV:
return (VALUE)str;
case RECV_IP:
#if 0
if (alen != sizeof(struct sockaddr_in)) {
rb_raise(rb_eTypeError, "sockaddr size differs - should not happen");
}
#endif
return rb_assoc_new(str, ipaddr((struct sockaddr *)buf));
#ifdef HAVE_SYS_UN_H
case RECV_UNIX:
return rb_assoc_new(str, unixaddr((struct sockaddr_un *)buf));
#endif
case RECV_SOCKET:
return rb_assoc_new(str, rb_tainted_str_new(buf, alen));
}
}
static VALUE
bsock_recv(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
return s_recvfrom(sock, argc, argv, RECV_RECV);
}
static VALUE
bsock_do_not_rev_lookup()
{
return do_not_reverse_lookup?Qtrue:Qfalse;
}
static VALUE
bsock_do_not_rev_lookup_set(self, val)
{
do_not_reverse_lookup = RTEST(val);
return val;
}
static void
mkipaddr0(addr, buf, len)
struct sockaddr *addr;
char *buf;
size_t len;
{
int error;
error = getnameinfo(addr, SA_LEN(addr), buf, len, NULL, 0, NI_NUMERICHOST);
if (error) {
rb_raise(rb_eSocket, "getnameinfo: %s", gai_strerror(error));
}
}
static VALUE
mkipaddr(addr)
struct sockaddr *addr;
{
char buf[1024];
mkipaddr0(addr, buf, sizeof(buf));
return rb_tainted_str_new2(buf);
}
static void
mkinetaddr(host, buf, len)
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;
mkipaddr0((struct sockaddr *)&sin, buf, len);
}
static struct addrinfo*
ip_addrsetup(host, port)
VALUE host, port;
{
struct addrinfo hints, *res;
char *hostp, *portp;
int error;
char hbuf[1024], pbuf[16];
if (NIL_P(host)) {
hostp = NULL;
}
else if (rb_obj_is_kind_of(host, rb_cInteger)) {
long i = NUM2LONG(host);
mkinetaddr(htonl(i), hbuf, sizeof(hbuf));
hostp = hbuf;
}
else {
char *name;
Check_SafeStr(host);
name = RSTRING(host)->ptr;
if (*name == 0) {
mkinetaddr(INADDR_ANY, hbuf, sizeof(hbuf));
}
else if (name[0] == '<' && strcmp(name, "<broadcast>") == 0) {
mkinetaddr(INADDR_BROADCAST, hbuf, sizeof(hbuf));
}
else if (strlen(name) >= sizeof(hbuf)) {
rb_raise(rb_eArgError, "hostname too long (%d)", strlen(name));
}
else {
strcpy(hbuf, name);
}
hostp = hbuf;
}
if (NIL_P(port)) {
portp = 0;
}
else if (FIXNUM_P(port)) {
snprintf(pbuf, sizeof(pbuf), "%ld", FIX2INT(port));
portp = pbuf;
}
else {
SafeStringValue(port);
portp = RSTRING(port)->ptr;
}
MEMZERO(&hints, struct addrinfo, 1);
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
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");
}
rb_raise(rb_eSocket, "getaddrinfo: %s", gai_strerror(error));
}
return res;
}
static void
setipaddr(name, addr)
VALUE name;
struct sockaddr *addr;
{
struct addrinfo *res = ip_addrsetup(name, Qnil);
/* just take the first one */
memcpy(addr, res->ai_addr, res->ai_addrlen);
freeaddrinfo(res);
}
static VALUE
ipaddr(sockaddr)
struct sockaddr *sockaddr;
{
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;
}
if (!do_not_reverse_lookup) {
error = getnameinfo(sockaddr, SA_LEN(sockaddr), hbuf, sizeof(hbuf),
NULL, 0, 0);
if (error) {
rb_raise(rb_eSocket, "getnameinfo: %s", gai_strerror(error));
}
addr1 = rb_tainted_str_new2(hbuf);
}
error = getnameinfo(sockaddr, SA_LEN(sockaddr), hbuf, sizeof(hbuf),
pbuf, sizeof(pbuf), NI_NUMERICHOST | NI_NUMERICSERV);
if (error) {
rb_raise(rb_eSocket, "getnameinfo %s", gai_strerror(error));
}
addr2 = rb_tainted_str_new2(hbuf);
if (do_not_reverse_lookup) {
addr1 = addr2;
}
port = INT2FIX(atoi(pbuf));
ary = rb_ary_new3(4, family, port, addr1, addr2);
return ary;
}
static int
ruby_socket(domain, type, proto)
int domain, type, 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 void
thread_write_select(fd)
int fd;
{
fd_set fds;
FD_ZERO(&fds);
FD_SET(fd, &fds);
rb_thread_select(fd+1, 0, &fds, 0, 0);
}
static int
ruby_connect(fd, sockaddr, len, socks)
int fd;
struct sockaddr *sockaddr;
int len;
int socks;
{
int status;
int mode;
#if defined(HAVE_FCNTL)
mode = fcntl(fd, F_GETFL, 0);
#ifdef O_NDELAY
# define NONBLOCKING O_NDELAY
#else
#ifdef O_NBIO
# define NONBLOCKING O_NBIO
#else
# define NONBLOCKING O_NONBLOCK
#endif
#endif
#ifdef SOCKS5
if (!socks)
#endif
fcntl(fd, F_SETFL, mode|NONBLOCKING);
#endif /* HAVE_FCNTL */
for (;;) {
#if defined(SOCKS) && !defined(SOCKS5)
if (socks) {
status = Rconnect(fd, sockaddr, len);
}
else
#endif
{
status = connect(fd, sockaddr, len);
}
if (status < 0) {
switch (errno) {
case EAGAIN:
#ifdef EINPROGRESS
case EINPROGRESS:
#endif
thread_write_select(fd);
continue;
#ifdef EISCONN
case EISCONN:
status = 0;
errno = 0;
break;
#endif
}
}
#ifdef HAVE_FCNTL
fcntl(fd, F_SETFL, mode);
#endif
return status;
}
}
static VALUE
load_addr_info(h, serv, type, res)
VALUE h, serv;
int type;
struct addrinfo **res;
{
char *host;
char pbuf[1024], *portp;
struct addrinfo hints;
int error;
if (!NIL_P(h)) {
Check_SafeStr(h);
host = RSTRING(h)->ptr;
}
else {
host = NULL;
}
if (FIXNUM_P(serv)) {
snprintf(pbuf, sizeof(pbuf), "%ld", FIX2UINT(serv));
portp = pbuf;
}
else {
Check_SafeStr(serv);
if (RSTRING(serv)->len >= sizeof(pbuf))
rb_raise(rb_eArgError, "servicename too long (%d)", RSTRING(serv)->len);
strcpy(pbuf, RSTRING(serv)->ptr);
portp = pbuf;
}
MEMZERO(&hints, struct addrinfo, 1);
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if (type == INET_SERVER) {
hints.ai_flags = AI_PASSIVE;
}
error = getaddrinfo(host, portp, &hints, res);
if (error) {
rb_raise(rb_eSocket, "getaddrinfo: %s", gai_strerror(error));
}
}
static VALUE
open_inet(class, remote_host, remote_serv, local_host, local_serv, type)
VALUE class, remote_host, remote_serv, local_host, local_serv;
int type;
{
struct addrinfo hints, *res, *res_remote, *res_local = NULL;
int fd, status;
char *syscall;
load_addr_info(remote_host, remote_serv, type, &res_remote);
/*
* Maybe also accept a local address
*/
if (type != INET_SERVER && (!NIL_P(local_host) || !NIL_P(local_serv)))
load_addr_info(local_host, local_serv, type, &res_local);
fd = -1;
for (res = res_remote; 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;
}
if (type == INET_SERVER) {
status = 1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
(char*)&status, sizeof(status));
status = bind(fd, res->ai_addr, res->ai_addrlen);
syscall = "bind(2)";
}
else {
if (res_local) {
status = bind(fd, res_local->ai_addr, res_local->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) {
#if defined(HAVE_CLOSESOCKET)
closesocket(fd);
#else
close(fd);
#endif
fd = -1;
continue;
} else
break;
}
if (status < 0) {
if (fd >= 0)
#if defined(HAVE_CLOSESOCKET)
closesocket(fd);
#else
close(fd);
#endif
freeaddrinfo(res_remote);
if (res_local) {
freeaddrinfo(res_local);
}
rb_sys_fail(syscall);
}
if (type == INET_SERVER)
listen(fd, 5);
/* create new instance */
if (res_local)
freeaddrinfo(res_local);
freeaddrinfo(res_remote);
return sock_new(class, fd);
}
static VALUE
tcp_s_open(argc, argv, class)
int argc;
VALUE *argv;
VALUE class;
{
VALUE remote_host, remote_serv;
VALUE local_host, local_serv;
int pcount = rb_scan_args(argc, argv, "22",
&remote_host, &remote_serv,
&local_host, &local_serv);
Check_SafeStr(remote_host);
if (!NIL_P(local_host)) {
Check_SafeStr(local_host);
}
return open_inet(class, remote_host, remote_serv,
local_host, local_serv, INET_CLIENT);
}
#ifdef SOCKS
static VALUE
socks_s_open(class, host, serv)
VALUE class, host, serv;
{
static init = 0;
if (init == 0) {
SOCKSinit("ruby");
init = 1;
}
Check_SafeStr(host);
return open_inet(class, host, serv, Qnil, Qnil, INET_SOCKS);
}
#ifdef SOCKS5
static VALUE
socks_s_close(sock)
VALUE sock;
{
OpenFile *fptr;
if (rb_safe_level() >= 4 && !OBJ_TAINTED(sock)) {
rb_raise(rb_eSecurityError, "Insecure: can't close socket");
}
GetOpenFile(sock, fptr);
shutdown(fileno(fptr->f), 2);
shutdown(fileno(fptr->f2), 2);
return rb_io_close(sock);
}
#endif
#endif
/*
* NOTE: using gethostbyname() against AF_INET6 is a bad idea, as it
* does not initialize sin_flowinfo nor sin_scope_id properly.
*/
static VALUE
tcp_s_gethostbyname(obj, host)
VALUE obj, host;
{
struct sockaddr_storage addr;
struct hostent *h;
char **pch;
VALUE ary, names;
rb_secure(3);
if (rb_obj_is_kind_of(host, rb_cInteger)) {
long i = NUM2LONG(host);
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)&addr;
MEMZERO(sin, struct sockaddr_in, 1);
sin->sin_family = AF_INET;
SET_SIN_LEN(sin, sizeof(*sin));
sin->sin_addr.s_addr = htonl(i);
}
else {
setipaddr(host, &addr);
}
switch (addr.ss_family) {
case AF_INET:
{
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)&addr;
h = gethostbyaddr((char *)&sin->sin_addr,
sizeof(sin->sin_addr),
sin->sin_family);
break;
}
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&addr;
h = gethostbyaddr((char *)&sin6->sin6_addr,
sizeof(sin6->sin6_addr),
sin6->sin6_family);
break;
}
#endif
default:
h = NULL;
}
if (h == NULL) {
#ifdef HAVE_HSTERROR
extern int h_errno;
rb_raise(rb_eSocket, "%s", (char *)hsterror(h_errno));
#else
rb_raise(rb_eSocket, "host not found");
#endif
}
ary = rb_ary_new();
rb_ary_push(ary, rb_tainted_str_new2(h->h_name));
names = rb_ary_new();
rb_ary_push(ary, names);
for (pch = h->h_aliases; *pch; pch++) {
rb_ary_push(names, rb_tainted_str_new2(*pch));
}
rb_ary_push(ary, INT2NUM(h->h_addrtype));
#ifdef h_addr
for (pch = h->h_addr_list; *pch; pch++) {
switch (addr.ss_family) {
case AF_INET:
{
struct sockaddr_in sin;
MEMZERO(&sin, struct sockaddr_in, 1);
sin.sin_family = AF_INET;
SET_SIN_LEN(&sin, sizeof(sin));
memcpy((char *) &sin.sin_addr, *pch, h->h_length);
h = gethostbyaddr((char *)&sin.sin_addr,
sizeof(sin.sin_addr),
sin.sin_family);
rb_ary_push(ary, mkipaddr((struct sockaddr *)&sin));
break;
}
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 sin6;
MEMZERO(&sin6, struct sockaddr_in6, 1);
sin6.sin6_family = AF_INET;
#ifdef SIN6_LEN
sin6.sin6_len = sizeof(sin6);
#endif
memcpy((char *) &sin6.sin6_addr, *pch, h->h_length);
h = gethostbyaddr((char *)&sin6.sin6_addr,
sizeof(sin6.sin6_addr),
sin6.sin6_family);
rb_ary_push(ary, mkipaddr((struct sockaddr *)&sin6));
break;
}
#endif
default:
h = NULL;
}
}
#else
memcpy((char *)&addr.sin_addr, h->h_addr, h->h_length);
rb_ary_push(ary, mkipaddr((struct sockaddr *)&addr));
#endif
return ary;
}
static VALUE
tcp_svr_s_open(argc, argv, class)
int argc;
VALUE *argv;
VALUE class;
{
VALUE arg1, arg2;
if (rb_scan_args(argc, argv, "11", &arg1, &arg2) == 2)
return open_inet(class, arg1, arg2, NULL, Qnil, INET_SERVER);
else
return open_inet(class, Qnil, arg1, NULL, Qnil, INET_SERVER);
}
static VALUE
s_accept(class, fd, sockaddr, len)
VALUE class;
int fd;
struct sockaddr *sockaddr;
socklen_t *len;
{
int fd2;
int retry = 0;
rb_secure(3);
retry:
rb_thread_wait_fd(fd);
TRAP_BEG;
fd2 = accept(fd, sockaddr, len);
TRAP_END;
if (fd2 < 0) {
switch (errno) {
case EMFILE:
case ENFILE:
if (retry) break;
rb_gc();
retry = 1;
goto retry;
case EINTR:
rb_thread_schedule();
goto retry;
case EWOULDBLOCK:
#if EAGAIN != EWOULDBLOCK
case EAGAIN:
#endif
rb_thread_wait_fd(fd);
goto retry;
}
rb_sys_fail(0);
}
return sock_new(class, fd2);
}
static VALUE
tcp_accept(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_storage from;
socklen_t fromlen;
GetOpenFile(sock, fptr);
fromlen = sizeof(from);
return s_accept(rb_cTCPSocket, fileno(fptr->f),
(struct sockaddr*)&from, &fromlen);
}
#ifdef HAVE_SYS_UN_H
static VALUE
open_unix(class, path, server)
VALUE class;
struct RString *path;
int server;
{
struct sockaddr_un sockaddr;
int fd, status;
VALUE sock;
OpenFile *fptr;
Check_SafeStr(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;
strncpy(sockaddr.sun_path, path->ptr, sizeof(sockaddr.sun_path)-1);
sockaddr.sun_path[sizeof(sockaddr.sun_path)-1] = '\0';
if (server) {
status = bind(fd, (struct sockaddr*)&sockaddr, sizeof(sockaddr));
}
else {
status = ruby_connect(fd, (struct sockaddr*)&sockaddr, sizeof(sockaddr), 0);
}
if (status < 0) {
#if defined(HAVE_CLOSESOCKET)
closesocket(fd);
#else
close(fd);
#endif
rb_sys_fail(sockaddr.sun_path);
}
if (server) listen(fd, 5);
sock = sock_new(class, fd);
GetOpenFile(sock, fptr);
fptr->path = strdup(path->ptr);
return sock;
}
#endif
static VALUE
ip_addr(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_storage addr;
socklen_t len = sizeof addr;
GetOpenFile(sock, fptr);
if (getsockname(fileno(fptr->f), (struct sockaddr*)&addr, &len) < 0)
rb_sys_fail("getsockname(2)");
return ipaddr((struct sockaddr *)&addr);
}
static VALUE
ip_peeraddr(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_storage addr;
socklen_t len = sizeof addr;
GetOpenFile(sock, fptr);
if (getpeername(fileno(fptr->f), (struct sockaddr*)&addr, &len) < 0)
rb_sys_fail("getpeername(2)");
return ipaddr((struct sockaddr *)&addr);
}
static VALUE
ip_recvfrom(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
return s_recvfrom(sock, argc, argv, RECV_IP);
}
static VALUE
ip_s_getaddress(obj, host)
VALUE obj, host;
{
struct sockaddr_storage addr;
setipaddr(host, &addr);
return mkipaddr((struct sockaddr *)&addr);
}
static VALUE
udp_s_open(argc, argv, class)
int argc;
VALUE *argv;
VALUE class;
{
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 sock_new(class, fd);
}
static VALUE
udp_connect(sock, host, port)
VALUE sock, host, port;
{
OpenFile *fptr;
int fd;
struct addrinfo *res0, *res;
rb_secure(3);
GetOpenFile(sock, fptr);
fd = fileno(fptr->f);
res0 = ip_addrsetup(host, port);
for (res = res0; res; res = res->ai_next) {
if (ruby_connect(fd, res->ai_addr, res->ai_addrlen, 0) >= 0) {
freeaddrinfo(res0);
return INT2FIX(0);
}
}
freeaddrinfo(res0);
rb_sys_fail("connect(2)");
return INT2FIX(0);
}
static VALUE
udp_bind(sock, host, port)
VALUE sock, host, port;
{
OpenFile *fptr;
struct addrinfo *res0, *res;
rb_secure(3);
GetOpenFile(sock, fptr);
res0 = ip_addrsetup(host, port);
for (res = res0; res; res = res->ai_next) {
if (bind(fileno(fptr->f), 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(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
VALUE mesg, flags, host, port;
OpenFile *fptr;
FILE *f;
int n;
struct addrinfo *res0, *res;
if (argc == 2 || argc == 3) {
return bsock_send(argc, argv, sock);
}
rb_secure(4);
rb_scan_args(argc, argv, "4", &mesg, &flags, &host, &port);
GetOpenFile(sock, fptr);
res0 = ip_addrsetup(host, port);
f = GetWriteFile(fptr);
StringValue(mesg);
for (res = res0; res; res = res->ai_next) {
retry:
n = sendto(fileno(f), RSTRING(mesg)->ptr, RSTRING(mesg)->len, NUM2INT(flags),
res->ai_addr, res->ai_addrlen);
if (n >= 0) {
freeaddrinfo(res0);
return INT2FIX(n);
}
switch (errno) {
case EINTR:
rb_thread_schedule();
goto retry;
case EWOULDBLOCK:
#if EAGAIN != EWOULDBLOCK
case EAGAIN:
#endif
rb_thread_fd_writable(fileno(f));
goto retry;
}
}
freeaddrinfo(res0);
rb_sys_fail("sendto(2)");
return INT2FIX(n);
}
#ifdef HAVE_SYS_UN_H
static VALUE
unix_s_sock_open(sock, path)
VALUE sock, path;
{
return open_unix(sock, path, 0);
}
static VALUE
unix_path(sock)
VALUE sock;
{
OpenFile *fptr;
GetOpenFile(sock, fptr);
if (fptr->path == 0) {
struct sockaddr_un addr;
socklen_t len = sizeof(addr);
if (getsockname(fileno(fptr->f), (struct sockaddr*)&addr, &len) < 0)
rb_sys_fail(0);
fptr->path = strdup(addr.sun_path);
}
return rb_tainted_str_new2(fptr->path);
}
static VALUE
unix_svr_s_open(sock, path)
VALUE sock, path;
{
return open_unix(sock, path, 1);
}
static VALUE
unix_recvfrom(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
return s_recvfrom(sock, argc, argv, RECV_UNIX);
}
static VALUE
unix_accept(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_un from;
socklen_t fromlen;
GetOpenFile(sock, fptr);
fromlen = sizeof(struct sockaddr_un);
return s_accept(rb_cUNIXSocket, fileno(fptr->f),
(struct sockaddr*)&from, &fromlen);
}
static VALUE
unixaddr(sockaddr)
struct sockaddr_un *sockaddr;
{
return rb_assoc_new(rb_str_new2("AF_UNIX"),
rb_tainted_str_new2(sockaddr->sun_path));
}
static VALUE
unix_addr(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_un addr;
socklen_t len = sizeof addr;
GetOpenFile(sock, fptr);
if (getsockname(fileno(fptr->f), (struct sockaddr*)&addr, &len) < 0)
rb_sys_fail("getsockname(2)");
return unixaddr(&addr);
}
static VALUE
unix_peeraddr(sock)
VALUE sock;
{
OpenFile *fptr;
struct sockaddr_un addr;
socklen_t len = sizeof addr;
GetOpenFile(sock, fptr);
if (getpeername(fileno(fptr->f), (struct sockaddr*)&addr, &len) < 0)
rb_sys_fail("getsockname(2)");
return unixaddr(&addr);
}
#endif
static void
setup_domain_and_type(domain, dv, type, tv)
VALUE domain, type;
int *dv, *tv;
{
char *ptr;
if (TYPE(domain) == T_STRING) {
Check_SafeStr(domain);
ptr = RSTRING(domain)->ptr;
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);
}
if (TYPE(type) == T_STRING) {
Check_SafeStr(type);
ptr = RSTRING(type)->ptr;
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_s_open(class, domain, type, protocol)
VALUE class, domain, type, 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 sock_new(class, fd);
}
static VALUE
sock_s_for_fd(class, fd)
VALUE class, fd;
{
return sock_new(class, NUM2INT(fd));
}
static VALUE
sock_s_socketpair(class, domain, type, protocol)
VALUE class, domain, type, protocol;
{
#if !defined(NT) && !defined(__BEOS__) && !defined(__EMX__)
int d, t, sp[2];
setup_domain_and_type(domain, &d, type, &t);
again:
if (socketpair(d, t, NUM2INT(protocol), sp) < 0) {
if (errno == EMFILE || errno == ENFILE) {
rb_gc();
goto again;
}
rb_sys_fail("socketpair(2)");
}
return rb_assoc_new(sock_new(class, sp[0]), sock_new(class, sp[1]));
#else
rb_notimplement();
#endif
}
static VALUE
sock_connect(sock, addr)
VALUE sock, addr;
{
OpenFile *fptr;
int fd;
Check_Type(addr, T_STRING);
rb_str_modify(addr);
GetOpenFile(sock, fptr);
fd = fileno(fptr->f);
if (ruby_connect(fd, (struct sockaddr*)RSTRING(addr)->ptr, RSTRING(addr)->len, 0) < 0) {
rb_sys_fail("connect(2)");
}
return INT2FIX(0);
}
static VALUE
sock_bind(sock, addr)
VALUE sock, addr;
{
OpenFile *fptr;
Check_Type(addr, T_STRING);
rb_str_modify(addr);
GetOpenFile(sock, fptr);
if (bind(fileno(fptr->f), (struct sockaddr*)RSTRING(addr)->ptr, RSTRING(addr)->len) < 0)
rb_sys_fail("bind(2)");
return INT2FIX(0);
}
static VALUE
sock_listen(sock, log)
VALUE sock, log;
{
OpenFile *fptr;
rb_secure(4);
GetOpenFile(sock, fptr);
if (listen(fileno(fptr->f), NUM2INT(log)) < 0)
rb_sys_fail("listen(2)");
return INT2FIX(0);
}
static VALUE
sock_recvfrom(argc, argv, sock)
int argc;
VALUE *argv;
VALUE sock;
{
return s_recvfrom(sock, argc, argv, RECV_SOCKET);
}
static VALUE
sock_accept(sock)
VALUE sock;
{
OpenFile *fptr;
VALUE sock2;
char buf[1024];
socklen_t len = sizeof buf;
GetOpenFile(sock, fptr);
sock2 = s_accept(rb_cSocket,fileno(fptr->f),(struct sockaddr*)buf,&len);
return rb_assoc_new(sock2, rb_tainted_str_new(buf, len));
}
#ifdef HAVE_GETHOSTNAME
static VALUE
sock_gethostname(obj)
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_tainted_str_new2(buf);
}
#else
#ifdef HAVE_UNAME
#include <sys/utsname.h>
static VALUE
sock_gethostname(obj)
VALUE obj;
{
struct utsname un;
rb_secure(3);
uname(&un);
return rb_tainted_str_new2(un.nodename);
}
#else
static VALUE
sock_gethostname(obj)
VALUE obj;
{
rb_notimplement();
}
#endif
#endif
static VALUE
mkhostent(h)
struct hostent *h;
{
char **pch;
VALUE ary, names;
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_tainted_str_new2(h->h_name));
names = rb_ary_new();
rb_ary_push(ary, names);
for (pch = h->h_aliases; *pch; pch++) {
rb_ary_push(names, rb_tainted_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_tainted_str_new(*pch, h->h_length));
}
#else
rb_ary_push(ary, rb_tainted_str_new(h->h_addr, h->h_length));
#endif
return ary;
}
static VALUE
mkaddrinfo(res0)
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);
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;
}
/*
* NOTE: using gethostbyname() against AF_INET6 is a bad idea, as it
* does not initialize sin_flowinfo nor sin_scope_id properly.
*/
static VALUE
sock_s_gethostbyname(obj, host)
VALUE obj, host;
{
struct sockaddr_storage addr;
struct hostent *h;
if (rb_obj_is_kind_of(host, rb_cInteger)) {
long i = NUM2LONG(host);
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)&addr;
MEMZERO(sin, struct sockaddr_in, 1);
sin->sin_family = AF_INET;
SET_SIN_LEN(sin, sizeof(*sin));
sin->sin_addr.s_addr = htonl(i);
}
else {
setipaddr(host, (struct sockaddr *)&addr);
}
switch (addr.ss_family) {
case AF_INET:
{
struct sockaddr_in *sin;
sin = (struct sockaddr_in *)&addr;
h = gethostbyaddr((char *)&sin->sin_addr,
sizeof(sin->sin_addr),
sin->sin_family);
break;
}
#ifdef INET6
case AF_INET6:
{
struct sockaddr_in6 *sin6;
sin6 = (struct sockaddr_in6 *)&addr;
h = gethostbyaddr((char *)&sin6->sin6_addr,
sizeof(sin6->sin6_addr),
sin6->sin6_family);
break;
}
#endif
default:
h = NULL;
}
return mkhostent(h);
}
static VALUE
sock_s_gethostbyaddr(argc, argv)
int argc;
VALUE *argv;
{
VALUE addr, type;
struct hostent *h;
rb_scan_args(argc, argv, "11", &addr, &type);
StringValue(addr);
h = gethostbyaddr(RSTRING(addr)->ptr, RSTRING(addr)->len,
NIL_P(type)?AF_INET:NUM2INT(type));
return mkhostent(h);
}
static VALUE
sock_s_getservbyaname(argc, argv)
int argc;
VALUE *argv;
{
VALUE service, protocol;
char *proto;
struct servent *sp;
int port;
rb_scan_args(argc, argv, "11", &service, &protocol);
if (NIL_P(protocol)) proto = "tcp";
else proto = StringValuePtr(protocol);
StringValue(service);
sp = getservbyname(RSTRING(service)->ptr, proto);
if (sp) {
port = ntohs(sp->s_port);
}
else {
char *s = RSTRING(service)->ptr;
char *end;
port = strtoul(s, &end, 0);
if (*end != '\0') {
rb_raise(rb_eSocket, "no such service %s/%s", s, proto);
}
}
return INT2FIX(port);
}
static VALUE
sock_s_getaddrinfo(argc, argv)
int argc;
VALUE *argv;
{
VALUE host, port, family, socktype, protocol, flags, ret;
char hbuf[1024], pbuf[1024];
char *hptr, *pptr;
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", FIX2INT(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 {
StringValue(family);
if (strcmp(RSTRING(family)->ptr, "AF_INET") == 0) {
hints.ai_family = PF_INET;
}
#ifdef INET6
else if (strcmp(RSTRING(family)->ptr, "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) {
rb_raise(rb_eSocket, "getaddrinfo: %s", gai_strerror(error));
}
ret = mkaddrinfo(res);
freeaddrinfo(res);
return ret;
}
static VALUE
sock_s_getnameinfo(argc, argv)
int argc;
VALUE *argv;
{
VALUE sa, af = Qnil, host = Qnil, port = Qnil, flags;
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 *ep;
sa = flags = Qnil;
rb_scan_args(argc, argv, "11", &sa, &flags);
fl = 0;
if (!NIL_P(flags)) {
fl = NUM2INT(flags);
}
if (TYPE(sa) == T_STRING) {
if (sizeof(ss) < RSTRING(sa)->len) {
rb_raise(rb_eTypeError, "sockaddr length too big");
}
memcpy(&ss, RSTRING(sa)->ptr, RSTRING(sa)->len);
if (RSTRING(sa)->len != SA_LEN((struct sockaddr *)&ss)) {
rb_raise(rb_eTypeError, "sockaddr size differs - should not happen");
}
sap = (struct sockaddr *)&ss;
}
else if (TYPE(sa) == T_ARRAY) {
MEMZERO(&hints, struct addrinfo, 1);
if (RARRAY(sa)->len == 3) {
af = RARRAY(sa)->ptr[0];
port = RARRAY(sa)->ptr[1];
host = RARRAY(sa)->ptr[2];
}
else if (RARRAY(sa)->len >= 4) {
af = RARRAY(sa)->ptr[0];
port = RARRAY(sa)->ptr[1];
host = RARRAY(sa)->ptr[3];
if (NIL_P(host)) {
host = RARRAY(sa)->ptr[2];
}
else {
/*
* 4th element holds numeric form, don't resolve.
* see ipaddr().
*/
hints.ai_flags |= AI_NUMERICHOST;
}
}
else {
rb_raise(rb_eArgError, "array size should be 3 or 4, %d given",
RARRAY(sa)->len);
}
/* 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", NUM2INT(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 {
StringValue(af);
if (strcmp(RSTRING(af)->ptr, "AF_INET") == 0) {
hints.ai_family = PF_INET;
}
#ifdef INET6
else if (strcmp(RSTRING(af)->ptr, "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");
}
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_tainted_str_new2(hbuf), rb_tainted_str_new2(pbuf));
error_exit_addr:
if (res) freeaddrinfo(res);
rb_raise(rb_eSocket, "getaddrinfo: %s", gai_strerror(error));
error_exit_name:
if (res) freeaddrinfo(res);
rb_raise(rb_eSocket, "getnameinfo: %s", gai_strerror(error));
}
static VALUE mConst;
static void
sock_define_const(name, value)
char *name;
int value;
{
rb_define_const(rb_cSocket, name, INT2FIX(value));
rb_define_const(mConst, name, INT2FIX(value));
}
void
Init_socket()
{
rb_eSocket = rb_define_class("SocketError", rb_eStandardError);
rb_cBasicSocket = rb_define_class("BasicSocket", rb_cIO);
rb_undef_method(CLASS_OF(rb_cBasicSocket), "new");
rb_undef_method(CLASS_OF(rb_cBasicSocket), "open");
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_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_cIPSocket = rb_define_class("IPSocket", rb_cBasicSocket);
rb_define_global_const("IPsocket", rb_cIPSocket);
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_global_const("TCPsocket", rb_cTCPSocket);
rb_define_singleton_method(rb_cTCPSocket, "open", tcp_s_open, -1);
rb_define_singleton_method(rb_cTCPSocket, "new", tcp_s_open, -1);
rb_define_singleton_method(rb_cTCPSocket, "gethostbyname", tcp_s_gethostbyname, 1);
#ifdef SOCKS
rb_cSOCKSSocket = rb_define_class("SOCKSSocket", rb_cTCPSocket);
rb_define_global_const("SOCKSsocket", rb_cSOCKSSocket);
rb_define_singleton_method(rb_cSOCKSSocket, "open", socks_s_open, 2);
rb_define_singleton_method(rb_cSOCKSSocket, "new", socks_s_open, 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_global_const("TCPserver", rb_cTCPServer);
rb_define_singleton_method(rb_cTCPServer, "open", tcp_svr_s_open, -1);
rb_define_singleton_method(rb_cTCPServer, "new", tcp_svr_s_open, -1);
rb_define_method(rb_cTCPServer, "accept", tcp_accept, 0);
rb_cUDPSocket = rb_define_class("UDPSocket", rb_cIPSocket);
rb_define_global_const("UDPsocket", rb_cUDPSocket);
rb_define_singleton_method(rb_cUDPSocket, "open", udp_s_open, -1);
rb_define_singleton_method(rb_cUDPSocket, "new", udp_s_open, -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);
#ifdef HAVE_SYS_UN_H
rb_cUNIXSocket = rb_define_class("UNIXSocket", rb_cBasicSocket);
rb_define_global_const("UNIXsocket", rb_cUNIXSocket);
rb_define_singleton_method(rb_cUNIXSocket, "open", unix_s_sock_open, 1);
rb_define_singleton_method(rb_cUNIXSocket, "new", unix_s_sock_open, 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_cUNIXServer = rb_define_class("UNIXServer", rb_cUNIXSocket);
rb_define_global_const("UNIXserver", rb_cUNIXServer);
rb_define_singleton_method(rb_cUNIXServer, "open", unix_svr_s_open, 1);
rb_define_singleton_method(rb_cUNIXServer, "new", unix_svr_s_open, 1);
rb_define_method(rb_cUNIXServer, "accept", unix_accept, 0);
#endif
rb_cSocket = rb_define_class("Socket", rb_cBasicSocket);
rb_define_singleton_method(rb_cSocket, "open", sock_s_open, 3);
rb_define_singleton_method(rb_cSocket, "new", sock_s_open, 3);
rb_define_singleton_method(rb_cSocket, "for_fd", sock_s_for_fd, 1);
rb_define_method(rb_cSocket, "connect", sock_connect, 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, "recvfrom", sock_recvfrom, -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_getservbyaname, -1);
rb_define_singleton_method(rb_cSocket, "getaddrinfo", sock_s_getaddrinfo, -1);
rb_define_singleton_method(rb_cSocket, "getnameinfo", sock_s_getnameinfo, -1);
/* constants */
mConst = rb_define_module_under(rb_cSocket, "Constants");
sock_define_const("SOCK_STREAM", SOCK_STREAM);
sock_define_const("SOCK_DGRAM", SOCK_DGRAM);
#ifdef SOCK_RAW
sock_define_const("SOCK_RAW", SOCK_RAW);
#endif
#ifdef SOCK_RDM
sock_define_const("SOCK_RDM", SOCK_RDM);
#endif
#ifdef SOCK_SEQPACKET
sock_define_const("SOCK_SEQPACKET", SOCK_SEQPACKET);
#endif
#ifdef SOCK_PACKET
sock_define_const("SOCK_PACKET", SOCK_PACKET);
#endif
sock_define_const("AF_INET", AF_INET);
#ifdef PF_INET
sock_define_const("PF_INET", PF_INET);
#endif
#ifdef AF_UNIX
sock_define_const("AF_UNIX", AF_UNIX);
sock_define_const("PF_UNIX", PF_UNIX);
#endif
#ifdef AF_AX25
sock_define_const("AF_AX25", AF_AX25);
sock_define_const("PF_AX25", PF_AX25);
#endif
#ifdef AF_IPX
sock_define_const("AF_IPX", AF_IPX);
sock_define_const("PF_IPX", PF_IPX);
#endif
#ifdef AF_APPLETALK
sock_define_const("AF_APPLETALK", AF_APPLETALK);
sock_define_const("PF_APPLETALK", PF_APPLETALK);
#endif
#ifdef AF_UNSPEC
sock_define_const("AF_UNSPEC", AF_UNSPEC);
sock_define_const("PF_UNSPEC", PF_UNSPEC);
#endif
#ifdef AF_INET6
sock_define_const("AF_INET6", AF_INET6);
#endif
#ifdef PF_INET6
sock_define_const("PF_INET6", PF_INET6);
#endif
sock_define_const("MSG_OOB", MSG_OOB);
#ifdef MSG_PEEK
sock_define_const("MSG_PEEK", MSG_PEEK);
#endif
#ifdef MSG_DONTROUTE
sock_define_const("MSG_DONTROUTE", MSG_DONTROUTE);
#endif
sock_define_const("SOL_SOCKET", SOL_SOCKET);
#ifdef SOL_IP
sock_define_const("SOL_IP", SOL_IP);
#endif
#ifdef SOL_IPX
sock_define_const("SOL_IPX", SOL_IPX);
#endif
#ifdef SOL_AX25
sock_define_const("SOL_AX25", SOL_AX25);
#endif
#ifdef SOL_ATALK
sock_define_const("SOL_ATALK", SOL_ATALK);
#endif
#ifdef SOL_TCP
sock_define_const("SOL_TCP", SOL_TCP);
#endif
#ifdef SOL_UDP
sock_define_const("SOL_UDP", SOL_UDP);
#endif
#ifdef SO_DEBUG
sock_define_const("SO_DEBUG", SO_DEBUG);
#endif
sock_define_const("SO_REUSEADDR", SO_REUSEADDR);
#ifdef SO_TYPE
sock_define_const("SO_TYPE", SO_TYPE);
#endif
#ifdef SO_ERROR
sock_define_const("SO_ERROR", SO_ERROR);
#endif
#ifdef SO_DONTROUTE
sock_define_const("SO_DONTROUTE", SO_DONTROUTE);
#endif
#ifdef SO_BROADCAST
sock_define_const("SO_BROADCAST", SO_BROADCAST);
#endif
#ifdef SO_SNDBUF
sock_define_const("SO_SNDBUF", SO_SNDBUF);
#endif
#ifdef SO_RCVBUF
sock_define_const("SO_RCVBUF", SO_RCVBUF);
#endif
#ifdef SO_KEEPALIVE
sock_define_const("SO_KEEPALIVE", SO_KEEPALIVE);
#endif
#ifdef SO_OOBINLINE
sock_define_const("SO_OOBINLINE", SO_OOBINLINE);
#endif
#ifdef SO_NO_CHECK
sock_define_const("SO_NO_CHECK", SO_NO_CHECK);
#endif
#ifdef SO_PRIORITY
sock_define_const("SO_PRIORITY", SO_PRIORITY);
#endif
#ifdef SO_LINGER
sock_define_const("SO_LINGER", SO_LINGER);
#endif
#ifdef SO_PASSCRED
sock_define_const("SO_PASSCRED", SO_PASSCRED);
#endif
#ifdef SO_PEERCRED
sock_define_const("SO_PEERCRED", SO_PEERCRED);
#endif
#ifdef SO_RCVLOWAT
sock_define_const("SO_RCVLOWAT", SO_RCVLOWAT);
#endif
#ifdef SO_SNDLOWAT
sock_define_const("SO_SNDLOWAT", SO_SNDLOWAT);
#endif
#ifdef SO_RCVTIMEO
sock_define_const("SO_RCVTIMEO", SO_RCVTIMEO);
#endif
#ifdef SO_SNDTIMEO
sock_define_const("SO_SNDTIMEO", SO_SNDTIMEO);
#endif
#ifdef SO_SECURITY_AUTHENTICATION
sock_define_const("SO_SECURITY_AUTHENTICATION", SO_SECURITY_AUTHENTICATION);
#endif
#ifdef SO_SECURITY_ENCRYPTION_TRANSPORT
sock_define_const("SO_SECURITY_ENCRYPTION_TRANSPORT", SO_SECURITY_ENCRYPTION_TRANSPORT);
#endif
#ifdef SO_SECURITY_ENCRYPTION_NETWORK
sock_define_const("SO_SECURITY_ENCRYPTION_NETWORK", SO_SECURITY_ENCRYPTION_NETWORK);
#endif
#ifdef SO_BINDTODEVICE
sock_define_const("SO_BINDTODEVICE", SO_BINDTODEVICE);
#endif
#ifdef SO_ATTACH_FILTER
sock_define_const("SO_ATTACH_FILTER", SO_ATTACH_FILTER);
#endif
#ifdef SO_DETACH_FILTER
sock_define_const("SO_DETACH_FILTER", SO_DETACH_FILTER);
#endif
#ifdef SO_PEERNAME
sock_define_const("SO_PEERNAME", SO_PEERNAME);
#endif
#ifdef SO_TIMESTAMP
sock_define_const("SO_TIMESTAMP", SO_TIMESTAMP);
#endif
#ifdef SOPRI_INTERACTIVE
sock_define_const("SOPRI_INTERACTIVE", SOPRI_INTERACTIVE);
#endif
#ifdef SOPRI_NORMAL
sock_define_const("SOPRI_NORMAL", SOPRI_NORMAL);
#endif
#ifdef SOPRI_BACKGROUND
sock_define_const("SOPRI_BACKGROUND", SOPRI_BACKGROUND);
#endif
#ifdef IP_MULTICAST_IF
sock_define_const("IP_MULTICAST_IF", IP_MULTICAST_IF);
#endif
#ifdef IP_MULTICAST_TTL
sock_define_const("IP_MULTICAST_TTL", IP_MULTICAST_TTL);
#endif
#ifdef IP_MULTICAST_LOOP
sock_define_const("IP_MULTICAST_LOOP", IP_MULTICAST_LOOP);
#endif
#ifdef IP_ADD_MEMBERSHIP
sock_define_const("IP_ADD_MEMBERSHIP", IP_ADD_MEMBERSHIP);
#endif
#ifdef IP_DEFAULT_MULTICAST_TTL
sock_define_const("IP_DEFAULT_MULTICAST_TTL", IP_DEFAULT_MULTICAST_TTL);
#endif
#ifdef IP_DEFAULT_MULTICAST_LOOP
sock_define_const("IP_DEFAULT_MULTICAST_LOOP", IP_DEFAULT_MULTICAST_LOOP);
#endif
#ifdef IP_MAX_MEMBERSHIPS
sock_define_const("IP_MAX_MEMBERSHIPS", IP_MAX_MEMBERSHIPS);
#endif
#ifdef IPX_TYPE
sock_define_const("IPX_TYPE", IPX_TYPE);
#endif
#ifdef TCP_NODELAY
sock_define_const("TCP_NODELAY", TCP_NODELAY);
#endif
#ifdef TCP_MAXSEG
sock_define_const("TCP_MAXSEG", TCP_MAXSEG);
#endif
#ifdef EAI_ADDRFAMILY
sock_define_const("EAI_ADDRFAMILY", EAI_ADDRFAMILY);
#endif
#ifdef EAI_AGAIN
sock_define_const("EAI_AGAIN", EAI_AGAIN);
#endif
#ifdef EAI_BADFLAGS
sock_define_const("EAI_BADFLAGS", EAI_BADFLAGS);
#endif
#ifdef EAI_FAIL
sock_define_const("EAI_FAIL", EAI_FAIL);
#endif
#ifdef EAI_FAMILY
sock_define_const("EAI_FAMILY", EAI_FAMILY);
#endif
#ifdef EAI_MEMORY
sock_define_const("EAI_MEMORY", EAI_MEMORY);
#endif
#ifdef EAI_NODATA
sock_define_const("EAI_NODATA", EAI_NODATA);
#endif
#ifdef EAI_NONAME
sock_define_const("EAI_NONAME", EAI_NONAME);
#endif
#ifdef EAI_SERVICE
sock_define_const("EAI_SERVICE", EAI_SERVICE);
#endif
#ifdef EAI_SOCKTYPE
sock_define_const("EAI_SOCKTYPE", EAI_SOCKTYPE);
#endif
#ifdef EAI_SYSTEM
sock_define_const("EAI_SYSTEM", EAI_SYSTEM);
#endif
#ifdef EAI_BADHINTS
sock_define_const("EAI_BADHINTS", EAI_BADHINTS);
#endif
#ifdef EAI_PROTOCOL
sock_define_const("EAI_PROTOCOL", EAI_PROTOCOL);
#endif
#ifdef EAI_MAX
sock_define_const("EAI_MAX", EAI_MAX);
#endif
#ifdef AI_PASSIVE
sock_define_const("AI_PASSIVE", AI_PASSIVE);
#endif
#ifdef AI_CANONNAME
sock_define_const("AI_CANONNAME", AI_CANONNAME);
#endif
#ifdef AI_NUMERICHOST
sock_define_const("AI_NUMERICHOST", AI_NUMERICHOST);
#endif
#ifdef AI_MASK
sock_define_const("AI_MASK", AI_MASK);
#endif
#ifdef AI_ALL
sock_define_const("AI_ALL", AI_ALL);
#endif
#ifdef AI_V4MAPPED_CFG
sock_define_const("AI_V4MAPPED_CFG", AI_V4MAPPED_CFG);
#endif
#ifdef AI_ADDRCONFIG
sock_define_const("AI_ADDRCONFIG", AI_ADDRCONFIG);
#endif
#ifdef AI_V4MAPPED
sock_define_const("AI_V4MAPPED", AI_V4MAPPED);
#endif
#ifdef AI_DEFAULT
sock_define_const("AI_DEFAULT", AI_DEFAULT);
#endif
#ifdef NI_MAXHOST
sock_define_const("NI_MAXHOST", NI_MAXHOST);
#endif
#ifdef NI_MAXSERV
sock_define_const("NI_MAXSERV", NI_MAXSERV);
#endif
#ifdef NI_NOFQDN
sock_define_const("NI_NOFQDN", NI_NOFQDN);
#endif
#ifdef NI_NUMERICHOST
sock_define_const("NI_NUMERICHOST", NI_NUMERICHOST);
#endif
#ifdef NI_NAMEREQD
sock_define_const("NI_NAMEREQD", NI_NAMEREQD);
#endif
#ifdef NI_NUMERICSERV
sock_define_const("NI_NUMERICSERV", NI_NUMERICSERV);
#endif
#ifdef NI_DGRAM
sock_define_const("NI_DGRAM", NI_DGRAM);
#endif
}
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