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|
/*
** socket.c - Socket module
**
** See Copyright Notice in mruby.h
*/
#ifdef _WIN32
#define _WIN32_WINNT 0x0501
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#define SHUT_RDWR SD_BOTH
#ifndef _SSIZE_T_DEFINED
typedef int ssize_t;
#endif
typedef int fsize_t;
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h>
#include <unistd.h>
typedef size_t fsize_t;
#endif
#include <stddef.h>
#include <string.h>
#include "mruby.h"
#include "mruby/array.h"
#include "mruby/class.h"
#include "mruby/data.h"
#include "mruby/string.h"
#include "mruby/variable.h"
#include "error.h"
#include "mruby/ext/io.h"
#if !defined(HAVE_SA_LEN)
#if (defined(BSD) && (BSD >= 199006))
#define HAVE_SA_LEN 1
#else
#define HAVE_SA_LEN 0
#endif
#endif
#define E_SOCKET_ERROR (mrb_class_get(mrb, "SocketError"))
#if !defined(mrb_cptr)
#define mrb_cptr_value(m,p) mrb_voidp_value((m),(p))
#define mrb_cptr(o) mrb_voidp(o)
#define mrb_cptr_p(o) mrb_voidp_p(o)
#endif
#ifdef _WIN32
static const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt)
{
if (af == AF_INET)
{
struct sockaddr_in in;
memset(&in, 0, sizeof(in));
in.sin_family = AF_INET;
memcpy(&in.sin_addr, src, sizeof(struct in_addr));
getnameinfo((struct sockaddr *)&in, sizeof(struct
sockaddr_in), dst, cnt, NULL, 0, NI_NUMERICHOST);
return dst;
}
else if (af == AF_INET6)
{
struct sockaddr_in6 in;
memset(&in, 0, sizeof(in));
in.sin6_family = AF_INET6;
memcpy(&in.sin6_addr, src, sizeof(struct in_addr6));
getnameinfo((struct sockaddr *)&in, sizeof(struct
sockaddr_in6), dst, cnt, NULL, 0, NI_NUMERICHOST);
return dst;
}
return NULL;
}
static int inet_pton(int af, const char *src, void *dst)
{
struct addrinfo hints, *res, *ressave;
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = af;
if (getaddrinfo(src, NULL, &hints, &res) != 0)
{
printf("Couldn't resolve host %s\n", src);
return -1;
}
ressave = res;
while (res)
{
memcpy(dst, res->ai_addr, res->ai_addrlen);
res = res->ai_next;
}
freeaddrinfo(ressave);
return 0;
}
#endif
static mrb_value
mrb_addrinfo_getaddrinfo(mrb_state *mrb, mrb_value klass)
{
struct addrinfo hints, *res0, *res;
mrb_value ai, ary, family, lastai, nodename, protocol, sa, service, socktype;
mrb_int flags;
int arena_idx, error;
const char *hostname = NULL, *servname = NULL;
ary = mrb_ary_new(mrb);
arena_idx = mrb_gc_arena_save(mrb); /* ary must be on arena! */
family = socktype = protocol = mrb_nil_value();
flags = 0;
mrb_get_args(mrb, "oo|oooi", &nodename, &service, &family, &socktype, &protocol, &flags);
if (mrb_string_p(nodename)) {
hostname = mrb_str_to_cstr(mrb, nodename);
} else if (mrb_nil_p(nodename)) {
hostname = NULL;
} else {
mrb_raise(mrb, E_TYPE_ERROR, "nodename must be String or nil");
}
if (mrb_string_p(service)) {
servname = mrb_str_to_cstr(mrb, service);
} else if (mrb_fixnum_p(service)) {
servname = mrb_str_to_cstr(mrb, mrb_funcall(mrb, service, "to_s", 0));
} else if (mrb_nil_p(service)) {
servname = NULL;
} else {
mrb_raise(mrb, E_TYPE_ERROR, "service must be String, Fixnum, or nil");
}
memset(&hints, 0, sizeof(hints));
hints.ai_flags = (int)flags;
if (mrb_fixnum_p(family)) {
hints.ai_family = (int)mrb_fixnum(family);
}
if (mrb_fixnum_p(socktype)) {
hints.ai_socktype = (int)mrb_fixnum(socktype);
}
if (mrb_fixnum_p(protocol)) {
hints.ai_protocol = (int)mrb_fixnum(protocol);
}
lastai = mrb_cv_get(mrb, klass, mrb_intern_lit(mrb, "_lastai"));
if (mrb_cptr_p(lastai)) {
freeaddrinfo((struct addrinfo*)mrb_cptr(lastai));
mrb_cv_set(mrb, klass, mrb_intern_lit(mrb, "_lastai"), mrb_nil_value());
}
error = getaddrinfo(hostname, servname, &hints, &res0);
if (error) {
mrb_raisef(mrb, E_SOCKET_ERROR, "getaddrinfo: %S", mrb_str_new_cstr(mrb, gai_strerror(error)));
}
mrb_cv_set(mrb, klass, mrb_intern_lit(mrb, "_lastai"), mrb_cptr_value(mrb, res0));
for (res = res0; res != NULL; res = res->ai_next) {
sa = mrb_str_new(mrb, (char*)res->ai_addr, res->ai_addrlen);
ai = mrb_funcall(mrb, klass, "new", 4, sa, mrb_fixnum_value(res->ai_family), mrb_fixnum_value(res->ai_socktype), mrb_fixnum_value(res->ai_protocol));
mrb_ary_push(mrb, ary, ai);
mrb_gc_arena_restore(mrb, arena_idx);
}
freeaddrinfo(res0);
mrb_cv_set(mrb, klass, mrb_intern_lit(mrb, "_lastai"), mrb_nil_value());
return ary;
}
static mrb_value
mrb_addrinfo_getnameinfo(mrb_state *mrb, mrb_value self)
{
mrb_int flags;
mrb_value ary, host, sastr, serv;
int error;
flags = 0;
mrb_get_args(mrb, "|i", &flags);
host = mrb_str_buf_new(mrb, NI_MAXHOST);
serv = mrb_str_buf_new(mrb, NI_MAXSERV);
sastr = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@sockaddr"));
if (!mrb_string_p(sastr)) {
mrb_raise(mrb, E_SOCKET_ERROR, "invalid sockaddr");
}
error = getnameinfo((struct sockaddr *)RSTRING_PTR(sastr), (socklen_t)RSTRING_LEN(sastr), RSTRING_PTR(host), NI_MAXHOST, RSTRING_PTR(serv), NI_MAXSERV, (int)flags);
if (error) {
mrb_raisef(mrb, E_SOCKET_ERROR, "getnameinfo: %S", mrb_str_new_cstr(mrb, gai_strerror(error)));
}
ary = mrb_ary_new_capa(mrb, 2);
mrb_str_resize(mrb, host, strlen(RSTRING_PTR(host)));
mrb_ary_push(mrb, ary, host);
mrb_str_resize(mrb, serv, strlen(RSTRING_PTR(serv)));
mrb_ary_push(mrb, ary, serv);
return ary;
}
#ifndef _WIN32
static mrb_value
mrb_addrinfo_unix_path(mrb_state *mrb, mrb_value self)
{
mrb_value sastr;
sastr = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@sockaddr"));
if (((struct sockaddr *)RSTRING_PTR(sastr))->sa_family != AF_UNIX)
mrb_raise(mrb, E_SOCKET_ERROR, "need AF_UNIX address");
if (RSTRING_LEN(sastr) < (mrb_int)offsetof(struct sockaddr_un, sun_path) + 1) {
return mrb_str_new(mrb, "", 0);
} else {
return mrb_str_new_cstr(mrb, ((struct sockaddr_un *)RSTRING_PTR(sastr))->sun_path);
}
}
#endif
static mrb_value
sa2addrlist(mrb_state *mrb, const struct sockaddr *sa, socklen_t salen)
{
mrb_value ary, host;
unsigned short port;
const char *afstr;
switch (sa->sa_family) {
case AF_INET:
afstr = "AF_INET";
port = ((struct sockaddr_in *)sa)->sin_port;
break;
case AF_INET6:
afstr = "AF_INET6";
port = ((struct sockaddr_in6 *)sa)->sin6_port;
break;
default:
mrb_raise(mrb, E_ARGUMENT_ERROR, "bad af");
return mrb_nil_value();
}
port = ntohs(port);
host = mrb_str_buf_new(mrb, NI_MAXHOST);
if (getnameinfo(sa, salen, RSTRING_PTR(host), NI_MAXHOST, NULL, 0, NI_NUMERICHOST) == -1)
mrb_sys_fail(mrb, "getnameinfo");
mrb_str_resize(mrb, host, strlen(RSTRING_PTR(host)));
ary = mrb_ary_new_capa(mrb, 4);
mrb_ary_push(mrb, ary, mrb_str_new_cstr(mrb, afstr));
mrb_ary_push(mrb, ary, mrb_fixnum_value(port));
mrb_ary_push(mrb, ary, host);
mrb_ary_push(mrb, ary, host);
return ary;
}
static int
socket_fd(mrb_state *mrb, mrb_value sock)
{
return (int)mrb_fixnum(mrb_funcall(mrb, sock, "fileno", 0));
}
static int
socket_family(int s)
{
struct sockaddr_storage ss;
socklen_t salen;
salen = sizeof(ss);
if (getsockname(s, (struct sockaddr *)&ss, &salen) == -1)
return AF_UNSPEC;
return ss.ss_family;
}
static mrb_value
mrb_basicsocket_getpeereid(mrb_state *mrb, mrb_value self)
{
#ifdef HAVE_GETPEEREID
mrb_value ary;
gid_t egid;
uid_t euid;
int s;
s = socket_fd(mrb, self);
if (getpeereid(s, &euid, &egid) != 0)
mrb_sys_fail(mrb, "getpeereid");
ary = mrb_ary_new_capa(mrb, 2);
mrb_ary_push(mrb, ary, mrb_fixnum_value((mrb_int)euid));
mrb_ary_push(mrb, ary, mrb_fixnum_value((mrb_int)egid));
return ary;
#else
mrb_raise(mrb, E_RUNTIME_ERROR, "getpeereid is not avaialble on this system");
return mrb_nil_value();
#endif
}
static mrb_value
mrb_basicsocket_getpeername(mrb_state *mrb, mrb_value self)
{
struct sockaddr_storage ss;
socklen_t salen;
salen = sizeof(ss);
if (getpeername(socket_fd(mrb, self), (struct sockaddr *)&ss, &salen) != 0)
mrb_sys_fail(mrb, "getpeername");
return mrb_str_new(mrb, (char*)&ss, salen);
}
static mrb_value
mrb_basicsocket_getsockname(mrb_state *mrb, mrb_value self)
{
struct sockaddr_storage ss;
socklen_t salen;
salen = sizeof(ss);
if (getsockname(socket_fd(mrb, self), (struct sockaddr *)&ss, &salen) != 0)
mrb_sys_fail(mrb, "getsockname");
return mrb_str_new(mrb, (char*)&ss, salen);
}
static mrb_value
mrb_basicsocket_getsockopt(mrb_state *mrb, mrb_value self)
{
char opt[8];
int s;
mrb_int family, level, optname;
mrb_value c, data;
socklen_t optlen;
mrb_get_args(mrb, "ii", &level, &optname);
s = socket_fd(mrb, self);
optlen = sizeof(opt);
if (getsockopt(s, (int)level, (int)optname, opt, &optlen) == -1)
mrb_sys_fail(mrb, "getsockopt");
c = mrb_const_get(mrb, mrb_obj_value(mrb_class_get(mrb, "Socket")), mrb_intern_lit(mrb, "Option"));
family = socket_family(s);
data = mrb_str_new(mrb, opt, optlen);
return mrb_funcall(mrb, c, "new", 4, mrb_fixnum_value(family), mrb_fixnum_value(level), mrb_fixnum_value(optname), data);
}
static mrb_value
mrb_basicsocket_recv(mrb_state *mrb, mrb_value self)
{
ssize_t n;
mrb_int maxlen, flags = 0;
mrb_value buf;
mrb_get_args(mrb, "i|i", &maxlen, &flags);
buf = mrb_str_buf_new(mrb, maxlen);
n = recv(socket_fd(mrb, self), RSTRING_PTR(buf), (fsize_t)maxlen, (int)flags);
if (n == -1)
mrb_sys_fail(mrb, "recv");
mrb_str_resize(mrb, buf, (mrb_int)n);
return buf;
}
static mrb_value
mrb_basicsocket_recvfrom(mrb_state *mrb, mrb_value self)
{
ssize_t n;
mrb_int maxlen, flags = 0;
mrb_value ary, buf, sa;
socklen_t socklen;
mrb_get_args(mrb, "i|i", &maxlen, &flags);
buf = mrb_str_buf_new(mrb, maxlen);
socklen = sizeof(struct sockaddr_storage);
sa = mrb_str_buf_new(mrb, socklen);
n = recvfrom(socket_fd(mrb, self), RSTRING_PTR(buf), (fsize_t)maxlen, (int)flags, (struct sockaddr *)RSTRING_PTR(sa), &socklen);
if (n == -1)
mrb_sys_fail(mrb, "recvfrom");
mrb_str_resize(mrb, buf, (mrb_int)n);
mrb_str_resize(mrb, sa, (mrb_int)socklen);
ary = mrb_ary_new_capa(mrb, 2);
mrb_ary_push(mrb, ary, buf);
mrb_ary_push(mrb, ary, sa);
return ary;
}
static mrb_value
mrb_basicsocket_send(mrb_state *mrb, mrb_value self)
{
ssize_t n;
mrb_int flags;
mrb_value dest, mesg;
dest = mrb_nil_value();
mrb_get_args(mrb, "Si|S", &mesg, &flags, &dest);
if (mrb_nil_p(dest)) {
n = send(socket_fd(mrb, self), RSTRING_PTR(mesg), (fsize_t)RSTRING_LEN(mesg), (int)flags);
} else {
n = sendto(socket_fd(mrb, self), RSTRING_PTR(mesg), (fsize_t)RSTRING_LEN(mesg), (int)flags, (const struct sockaddr*)RSTRING_PTR(dest), (fsize_t)RSTRING_LEN(dest));
}
if (n == -1)
mrb_sys_fail(mrb, "send");
return mrb_fixnum_value((mrb_int)n);
}
static mrb_value
mrb_basicsocket_setnonblock(mrb_state *mrb, mrb_value self)
{
int fd, flags;
mrb_bool nonblocking;
#ifdef _WIN32
u_long mode = 1;
#endif
mrb_get_args(mrb, "b", &nonblocking);
fd = socket_fd(mrb, self);
#ifdef _WIN32
flags = ioctlsocket(fd, FIONBIO, &mode);
if (flags != NO_ERROR)
mrb_sys_fail(mrb, "ioctlsocket");
#else
flags = fcntl(fd, F_GETFL, 0);
if (flags == 1)
mrb_sys_fail(mrb, "fcntl");
if (nonblocking)
flags |= O_NONBLOCK;
else
flags &= ~O_NONBLOCK;
if (fcntl(fd, F_SETFL, flags) == -1)
mrb_sys_fail(mrb, "fcntl");
#endif
return mrb_nil_value();
}
static mrb_value
mrb_basicsocket_setsockopt(mrb_state *mrb, mrb_value self)
{
int s;
mrb_int argc, level = 0, optname;
mrb_value optval, so;
argc = mrb_get_args(mrb, "o|io", &so, &optname, &optval);
if (argc == 3) {
if (!mrb_fixnum_p(so)) {
mrb_raise(mrb, E_ARGUMENT_ERROR, "level is not an integer");
}
level = mrb_fixnum(so);
if (mrb_string_p(optval)) {
/* that's good */
} else if (mrb_type(optval) == MRB_TT_TRUE || mrb_type(optval) == MRB_TT_FALSE) {
mrb_int i = mrb_test(optval) ? 1 : 0;
optval = mrb_str_new(mrb, (char*)&i, sizeof(i));
} else if (mrb_fixnum_p(optval)) {
if (optname == IP_MULTICAST_TTL || optname == IP_MULTICAST_LOOP) {
char uc = (char)mrb_fixnum(optval);
optval = mrb_str_new(mrb, &uc, sizeof(uc));
} else {
mrb_int i = mrb_fixnum(optval);
optval = mrb_str_new(mrb, (char*)&i, sizeof(i));
}
} else {
mrb_raise(mrb, E_ARGUMENT_ERROR, "optval should be true, false, an integer, or a string");
}
} else if (argc == 1) {
if (strcmp(mrb_obj_classname(mrb, so), "Socket::Option") != 0)
mrb_raise(mrb, E_ARGUMENT_ERROR, "not an instance of Socket::Option");
level = mrb_fixnum(mrb_funcall(mrb, so, "level", 0));
optname = mrb_fixnum(mrb_funcall(mrb, so, "optname", 0));
optval = mrb_funcall(mrb, so, "data", 0);
} else {
mrb_raisef(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (%S for 3)", mrb_fixnum_value(argc));
}
s = socket_fd(mrb, self);
if (setsockopt(s, (int)level, (int)optname, RSTRING_PTR(optval), (socklen_t)RSTRING_LEN(optval)) == -1)
mrb_sys_fail(mrb, "setsockopt");
return mrb_fixnum_value(0);
}
static mrb_value
mrb_basicsocket_shutdown(mrb_state *mrb, mrb_value self)
{
mrb_int how = SHUT_RDWR;
mrb_get_args(mrb, "|i", &how);
if (shutdown(socket_fd(mrb, self), (int)how) != 0)
mrb_sys_fail(mrb, "shutdown");
return mrb_fixnum_value(0);
}
static mrb_value
mrb_basicsocket_set_is_socket(mrb_state *mrb, mrb_value self)
{
mrb_bool b;
struct mrb_io *io_p;
mrb_get_args(mrb, "b", &b);
io_p = (struct mrb_io*)DATA_PTR(self);
if (io_p) {
io_p->is_socket = b;
}
return mrb_bool_value(b);
}
static mrb_value
mrb_ipsocket_ntop(mrb_state *mrb, mrb_value klass)
{
mrb_int af, n;
char *addr, buf[50];
mrb_get_args(mrb, "is", &af, &addr, &n);
if ((af == AF_INET && n != 4) || (af == AF_INET6 && n != 16))
mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid address");
if (inet_ntop((int)af, addr, buf, sizeof(buf)) == NULL)
mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid address");
return mrb_str_new_cstr(mrb, buf);
}
static mrb_value
mrb_ipsocket_pton(mrb_state *mrb, mrb_value klass)
{
mrb_int af, n;
char *bp, buf[50];
mrb_get_args(mrb, "is", &af, &bp, &n);
if ((size_t)n > sizeof(buf) - 1)
mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid address");
memcpy(buf, bp, n);
buf[n] = '\0';
if (af == AF_INET) {
struct in_addr in;
if (inet_pton(AF_INET, buf, (void *)&in.s_addr) != 1)
goto invalid;
return mrb_str_new(mrb, (char*)&in.s_addr, 4);
} else if (af == AF_INET6) {
struct in6_addr in6;
if (inet_pton(AF_INET6, buf, (void *)&in6.s6_addr) != 1)
goto invalid;
return mrb_str_new(mrb, (char*)&in6.s6_addr, 16);
} else
mrb_raise(mrb, E_ARGUMENT_ERROR, "unsupported address family");
invalid:
mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid address");
return mrb_nil_value(); /* dummy */
}
static mrb_value
mrb_ipsocket_recvfrom(mrb_state *mrb, mrb_value self)
{
struct sockaddr_storage ss;
socklen_t socklen;
mrb_value a, buf, pair;
mrb_int flags, maxlen;
ssize_t n;
int fd;
fd = socket_fd(mrb, self);
flags = 0;
mrb_get_args(mrb, "i|i", &maxlen, &flags);
buf = mrb_str_buf_new(mrb, maxlen);
socklen = sizeof(ss);
n = recvfrom(fd, RSTRING_PTR(buf), (fsize_t)maxlen, (int)flags,
(struct sockaddr *)&ss, &socklen);
if (n == -1) {
mrb_sys_fail(mrb, "recvfrom");
}
mrb_str_resize(mrb, buf, (mrb_int)n);
a = sa2addrlist(mrb, (struct sockaddr *)&ss, socklen);
pair = mrb_ary_new_capa(mrb, 2);
mrb_ary_push(mrb, pair, buf);
mrb_ary_push(mrb, pair, a);
return pair;
}
static mrb_value
mrb_socket_gethostname(mrb_state *mrb, mrb_value cls)
{
mrb_value buf;
size_t bufsize;
#ifdef HOST_NAME_MAX
bufsize = HOST_NAME_MAX + 1;
#else
bufsize = 256;
#endif
buf = mrb_str_buf_new(mrb, (mrb_int)bufsize);
if (gethostname(RSTRING_PTR(buf), (fsize_t)bufsize) != 0)
mrb_sys_fail(mrb, "gethostname");
mrb_str_resize(mrb, buf, (mrb_int)strlen(RSTRING_PTR(buf)));
return buf;
}
static mrb_value
mrb_socket_accept(mrb_state *mrb, mrb_value klass)
{
int s1;
mrb_int s0;
mrb_get_args(mrb, "i", &s0);
s1 = (int)accept(s0, NULL, NULL);
if (s1 == -1) {
mrb_sys_fail(mrb, "accept");
}
return mrb_fixnum_value(s1);
}
static mrb_value
mrb_socket_accept2(mrb_state *mrb, mrb_value klass)
{
mrb_value ary, sastr;
int s1;
mrb_int s0;
socklen_t socklen;
mrb_get_args(mrb, "i", &s0);
socklen = sizeof(struct sockaddr_storage);
sastr = mrb_str_buf_new(mrb, socklen);
s1 = (int)accept(s0, (struct sockaddr *)RSTRING_PTR(sastr), &socklen);
if (s1 == -1) {
mrb_sys_fail(mrb, "accept");
}
// XXX: possible descriptor leakage here!
mrb_str_resize(mrb, sastr, socklen);
ary = mrb_ary_new_capa(mrb, 2);
mrb_ary_push(mrb, ary, mrb_fixnum_value(s1));
mrb_ary_push(mrb, ary, sastr);
return ary;
}
static mrb_value
mrb_socket_bind(mrb_state *mrb, mrb_value klass)
{
mrb_value sastr;
mrb_int s;
mrb_get_args(mrb, "iS", &s, &sastr);
if (bind((int)s, (struct sockaddr *)RSTRING_PTR(sastr), (socklen_t)RSTRING_LEN(sastr)) == -1) {
mrb_sys_fail(mrb, "bind");
}
return mrb_nil_value();
}
static mrb_value
mrb_socket_connect(mrb_state *mrb, mrb_value klass)
{
mrb_value sastr;
mrb_int s;
mrb_get_args(mrb, "iS", &s, &sastr);
if (connect((int)s, (struct sockaddr *)RSTRING_PTR(sastr), (socklen_t)RSTRING_LEN(sastr)) == -1) {
mrb_sys_fail(mrb, "connect");
}
return mrb_nil_value();
}
static mrb_value
mrb_socket_listen(mrb_state *mrb, mrb_value klass)
{
mrb_int backlog, s;
mrb_get_args(mrb, "ii", &s, &backlog);
if (listen((int)s, (int)backlog) == -1) {
mrb_sys_fail(mrb, "listen");
}
return mrb_nil_value();
}
static mrb_value
mrb_socket_sockaddr_family(mrb_state *mrb, mrb_value klass)
{
const struct sockaddr *sa;
mrb_value str;
mrb_get_args(mrb, "S", &str);
if ((size_t)RSTRING_LEN(str) < offsetof(struct sockaddr, sa_family) + sizeof(sa->sa_family)) {
mrb_raise(mrb, E_SOCKET_ERROR, "invalid sockaddr (too short)");
}
sa = (const struct sockaddr *)RSTRING_PTR(str);
return mrb_fixnum_value(sa->sa_family);
}
static mrb_value
mrb_socket_sockaddr_un(mrb_state *mrb, mrb_value klass)
{
#ifdef _WIN32
mrb_raise(mrb, E_NOTIMP_ERROR, "sockaddr_un unsupported on Windows");
return mrb_nil_value();
#else
struct sockaddr_un *sunp;
mrb_value path, s;
mrb_get_args(mrb, "S", &path);
if ((size_t)RSTRING_LEN(path) > sizeof(sunp->sun_path) - 1) {
mrb_raisef(mrb, E_ARGUMENT_ERROR, "too long unix socket path (max: %S bytes)", mrb_fixnum_value(sizeof(sunp->sun_path) - 1));
}
s = mrb_str_buf_new(mrb, sizeof(struct sockaddr_un));
sunp = (struct sockaddr_un *)RSTRING_PTR(s);
#if HAVE_SA_LEN
sunp->sun_len = sizeof(struct sockaddr_un);
#endif
sunp->sun_family = AF_UNIX;
memcpy(sunp->sun_path, RSTRING_PTR(path), RSTRING_LEN(path));
sunp->sun_path[RSTRING_LEN(path)] = '\0';
mrb_str_resize(mrb, s, sizeof(struct sockaddr_un));
return s;
#endif
}
static mrb_value
mrb_socket_socketpair(mrb_state *mrb, mrb_value klass)
{
#ifdef _WIN32
mrb_raise(mrb, E_NOTIMP_ERROR, "socketpair unsupported on Windows");
return mrb_nil_value();
#else
mrb_value ary;
mrb_int domain, type, protocol;
int sv[2];
mrb_get_args(mrb, "iii", &domain, &type, &protocol);
if (socketpair(domain, type, protocol, sv) == -1) {
mrb_sys_fail(mrb, "socketpair");
}
// XXX: possible descriptor leakage here!
ary = mrb_ary_new_capa(mrb, 2);
mrb_ary_push(mrb, ary, mrb_fixnum_value(sv[0]));
mrb_ary_push(mrb, ary, mrb_fixnum_value(sv[1]));
return ary;
#endif
}
static mrb_value
mrb_socket_socket(mrb_state *mrb, mrb_value klass)
{
mrb_int domain, type, protocol;
int s;
mrb_get_args(mrb, "iii", &domain, &type, &protocol);
s = (int)socket((int)domain, (int)type, (int)protocol);
if (s == -1)
mrb_sys_fail(mrb, "socket");
return mrb_fixnum_value(s);
}
static mrb_value
mrb_tcpsocket_allocate(mrb_state *mrb, mrb_value klass)
{
struct RClass *c = mrb_class_ptr(klass);
enum mrb_vtype ttype = MRB_INSTANCE_TT(c);
/* copied from mrb_instance_alloc() */
if (ttype == 0) ttype = MRB_TT_OBJECT;
return mrb_obj_value((struct RObject*)mrb_obj_alloc(mrb, ttype, c));
}
/* Windows overrides for IO methods on BasicSocket objects.
* This is because sockets on Windows are not the same as file
* descriptors, and thus functions which operate on file descriptors
* will break on socket descriptors.
*/
#ifdef _WIN32
static mrb_value
mrb_win32_basicsocket_close(mrb_state *mrb, mrb_value self)
{
if (closesocket(socket_fd(mrb, self)) != NO_ERROR)
mrb_raise(mrb, E_SOCKET_ERROR, "closesocket unsuccessful");
return mrb_nil_value();
}
#define E_EOF_ERROR (mrb_class_get(mrb, "EOFError"))
static mrb_value
mrb_win32_basicsocket_sysread(mrb_state *mrb, mrb_value self)
{
int sd, ret;
mrb_value buf = mrb_nil_value();
mrb_int maxlen;
mrb_get_args(mrb, "i|S", &maxlen, &buf);
if (maxlen < 0) {
return mrb_nil_value();
}
if (mrb_nil_p(buf)) {
buf = mrb_str_new(mrb, NULL, maxlen);
}
if (RSTRING_LEN(buf) != maxlen) {
buf = mrb_str_resize(mrb, buf, maxlen);
}
sd = socket_fd(mrb, self);
ret = recv(sd, RSTRING_PTR(buf), (int)maxlen, 0);
switch (ret) {
case 0: /* EOF */
if (maxlen == 0) {
buf = mrb_str_new_cstr(mrb, "");
} else {
mrb_raise(mrb, E_EOF_ERROR, "sysread failed: End of File");
}
break;
case SOCKET_ERROR: /* Error */
mrb_sys_fail(mrb, "recv");
break;
default:
if (RSTRING_LEN(buf) != ret) {
buf = mrb_str_resize(mrb, buf, ret);
}
break;
}
return buf;
}
static mrb_value
mrb_win32_basicsocket_sysseek(mrb_state *mrb, mrb_value self)
{
mrb_raise(mrb, E_NOTIMP_ERROR, "sysseek not implemented for windows sockets");
return mrb_nil_value();
}
static mrb_value
mrb_win32_basicsocket_syswrite(mrb_state *mrb, mrb_value self)
{
int n;
SOCKET sd;
mrb_value str;
sd = socket_fd(mrb, self);
mrb_get_args(mrb, "S", &str);
n = send(sd, RSTRING_PTR(str), (int)RSTRING_LEN(str), 0);
if (n == SOCKET_ERROR)
mrb_sys_fail(mrb, "send");
return mrb_fixnum_value(n);
}
#endif
void
mrb_mruby_socket_gem_init(mrb_state* mrb)
{
struct RClass *io, *ai, *sock, *bsock, *ipsock, *tcpsock;
struct RClass *constants;
#ifdef _WIN32
WSADATA wsaData;
int result;
result = WSAStartup(MAKEWORD(2,2), &wsaData);
if (result != NO_ERROR)
mrb_raise(mrb, E_RUNTIME_ERROR, "WSAStartup failed");
#endif
ai = mrb_define_class(mrb, "Addrinfo", mrb->object_class);
mrb_mod_cv_set(mrb, ai, mrb_intern_lit(mrb, "_lastai"), mrb_nil_value());
mrb_define_class_method(mrb, ai, "getaddrinfo", mrb_addrinfo_getaddrinfo, MRB_ARGS_REQ(2)|MRB_ARGS_OPT(4));
mrb_define_method(mrb, ai, "getnameinfo", mrb_addrinfo_getnameinfo, MRB_ARGS_OPT(1));
#ifndef _WIN32
mrb_define_method(mrb, ai, "unix_path", mrb_addrinfo_unix_path, MRB_ARGS_NONE());
#endif
io = mrb_class_get(mrb, "IO");
bsock = mrb_define_class(mrb, "BasicSocket", io);
mrb_define_method(mrb, bsock, "_recvfrom", mrb_basicsocket_recvfrom, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
mrb_define_method(mrb, bsock, "_setnonblock", mrb_basicsocket_setnonblock, MRB_ARGS_REQ(1));
mrb_define_method(mrb, bsock, "getpeereid", mrb_basicsocket_getpeereid, MRB_ARGS_NONE());
mrb_define_method(mrb, bsock, "getpeername", mrb_basicsocket_getpeername, MRB_ARGS_NONE());
mrb_define_method(mrb, bsock, "getsockname", mrb_basicsocket_getsockname, MRB_ARGS_NONE());
mrb_define_method(mrb, bsock, "getsockopt", mrb_basicsocket_getsockopt, MRB_ARGS_REQ(2));
mrb_define_method(mrb, bsock, "recv", mrb_basicsocket_recv, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
// #recvmsg(maxlen, flags=0)
mrb_define_method(mrb, bsock, "send", mrb_basicsocket_send, MRB_ARGS_REQ(2)|MRB_ARGS_OPT(1));
// #sendmsg
// #sendmsg_nonblock
mrb_define_method(mrb, bsock, "setsockopt", mrb_basicsocket_setsockopt, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(2));
mrb_define_method(mrb, bsock, "shutdown", mrb_basicsocket_shutdown, MRB_ARGS_OPT(1));
mrb_define_method(mrb, bsock, "_is_socket=", mrb_basicsocket_set_is_socket, MRB_ARGS_REQ(1));
ipsock = mrb_define_class(mrb, "IPSocket", bsock);
mrb_define_class_method(mrb, ipsock, "ntop", mrb_ipsocket_ntop, MRB_ARGS_REQ(1));
mrb_define_class_method(mrb, ipsock, "pton", mrb_ipsocket_pton, MRB_ARGS_REQ(2));
mrb_define_method(mrb, ipsock, "recvfrom", mrb_ipsocket_recvfrom, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
tcpsock = mrb_define_class(mrb, "TCPSocket", ipsock);
mrb_define_class_method(mrb, tcpsock, "_allocate", mrb_tcpsocket_allocate, MRB_ARGS_NONE());
mrb_define_class(mrb, "TCPServer", tcpsock);
mrb_define_class(mrb, "UDPSocket", ipsock);
//#recvfrom_nonblock
sock = mrb_define_class(mrb, "Socket", bsock);
mrb_define_class_method(mrb, sock, "_accept", mrb_socket_accept, MRB_ARGS_REQ(1));
mrb_define_class_method(mrb, sock, "_accept2", mrb_socket_accept2, MRB_ARGS_REQ(1));
mrb_define_class_method(mrb, sock, "_bind", mrb_socket_bind, MRB_ARGS_REQ(3));
mrb_define_class_method(mrb, sock, "_connect", mrb_socket_connect, MRB_ARGS_REQ(3));
mrb_define_class_method(mrb, sock, "_listen", mrb_socket_listen, MRB_ARGS_REQ(2));
mrb_define_class_method(mrb, sock, "_sockaddr_family", mrb_socket_sockaddr_family, MRB_ARGS_REQ(1));
mrb_define_class_method(mrb, sock, "_socket", mrb_socket_socket, MRB_ARGS_REQ(3));
//mrb_define_class_method(mrb, sock, "gethostbyaddr", mrb_socket_gethostbyaddr, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
//mrb_define_class_method(mrb, sock, "gethostbyname", mrb_socket_gethostbyname, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
mrb_define_class_method(mrb, sock, "gethostname", mrb_socket_gethostname, MRB_ARGS_NONE());
//mrb_define_class_method(mrb, sock, "getservbyname", mrb_socket_getservbyname, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
//mrb_define_class_method(mrb, sock, "getservbyport", mrb_socket_getservbyport, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
mrb_define_class_method(mrb, sock, "sockaddr_un", mrb_socket_sockaddr_un, MRB_ARGS_REQ(1));
mrb_define_class_method(mrb, sock, "socketpair", mrb_socket_socketpair, MRB_ARGS_REQ(3));
//mrb_define_method(mrb, sock, "sysaccept", mrb_socket_accept, MRB_ARGS_NONE());
#ifndef _WIN32
mrb_define_class(mrb, "UNIXSocket", bsock);
//mrb_define_class_method(mrb, usock, "pair", mrb_unixsocket_open, MRB_ARGS_OPT(2));
//mrb_define_class_method(mrb, usock, "socketpair", mrb_unixsocket_open, MRB_ARGS_OPT(2));
//mrb_define_method(mrb, usock, "recv_io", mrb_unixsocket_peeraddr, MRB_ARGS_NONE());
//mrb_define_method(mrb, usock, "recvfrom", mrb_unixsocket_peeraddr, MRB_ARGS_NONE());
//mrb_define_method(mrb, usock, "send_io", mrb_unixsocket_peeraddr, MRB_ARGS_NONE());
#endif
/* Windows IO Method Overrides on BasicSocket */
#ifdef _WIN32
mrb_define_method(mrb, bsock, "close", mrb_win32_basicsocket_close, MRB_ARGS_NONE());
mrb_define_method(mrb, bsock, "sysread", mrb_win32_basicsocket_sysread, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(1));
mrb_define_method(mrb, bsock, "sysseek", mrb_win32_basicsocket_sysseek, MRB_ARGS_REQ(1));
mrb_define_method(mrb, bsock, "syswrite", mrb_win32_basicsocket_syswrite, MRB_ARGS_REQ(1));
#endif
constants = mrb_define_module_under(mrb, sock, "Constants");
#define define_const(SYM) \
do { \
mrb_define_const(mrb, constants, #SYM, mrb_fixnum_value(SYM)); \
} while (0)
#include "const.cstub"
}
void
mrb_mruby_socket_gem_final(mrb_state* mrb)
{
mrb_value ai;
ai = mrb_mod_cv_get(mrb, mrb_class_get(mrb, "Addrinfo"), mrb_intern_lit(mrb, "_lastai"));
if (mrb_cptr_p(ai)) {
freeaddrinfo((struct addrinfo*)mrb_cptr(ai));
}
#ifdef _WIN32
WSACleanup();
#endif
}
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