Ejemplo n.º 1
0
//HsBool
HsInt vaskerl_init_connect (char *name, char *ip, char *host,
                            char *dest, char *cookie)
{
    if (fd > -1)
        return fd;

    struct in_addr addr;
    addr.s_addr = inet_addr(ip);

    // struct hostent *he = erl_gethostbyname("127.0.0.1");
    // printf("... %s\n", he->h_name);
    char fullname[256];
    sprintf(fullname, "%s@%s", name, host);

    erl_init(NULL, 0);
    if (erl_connect_xinit(host, name, fullname, &addr, cookie, 0) < 0)
        //if (erl_connect_xinit("McHoovy.rd.shawcable.net", "vaskerl",
        //                  "*****@*****.**", &addr,
        //                  cookie, 0) < 0)
        erl_err_quit("erl_connect_xinit failed");

    printf("node=%s, host=%s, alive=%s, creation=%d\n", 
           erl_thisnodename(), erl_thishostname(), 
           erl_thisalivename(), erl_thiscreation());

    if ((fd = erl_xconnect(&addr, dest)) < 0)
        erl_err_quit("erl_xconnect failed");

    return fd;
    //return HS_BOOL_TRUE;
}
Ejemplo n.º 2
0
static int init(int *sd, int *portnr, int *epmd_fd)
{
  char host[HOSTNAMESZ];
  char servernode[NODENAMESZ];
  struct hostent *h; 
  int error = 0;

#ifdef __WIN32__
  WORD wVersionRequested;
  WSADATA wsaData;

  wVersionRequested = MAKEWORD(1, 1);
  if ((error = WSAStartup(wVersionRequested, &wsaData))) {
      fprintf(stderr,"Can't initialize windows sockets: %d",error);
  }        
#endif
 /* get the host name */
  error = gethostname(host,HOSTNAMESZ);
  if (error) {
#ifdef __WIN32__
      fprintf(stderr,"can't find own hostname (error = %ld) !\n",WSAGetLastError());
#else /* not __WIN32__ */
      fprintf(stderr,"can't find own hostname !\n");
#endif
  }
  else {
    /* identify host */
    if (!(h = erl_gethostbyname(host)))
      fprintf(stdout,"can't find own ip address\n");
    else {

      /* get a listen port. 0 means let system choose port number */
      *sd = getlisten(0);
      
      /* what port did we get? */
      /* this call not necessary if we specified port in call to getlisten() */
      *portnr = getport(*sd);
      
      /* make the nodename server@host */
      sprintf(servernode,"%s@%s",SERVER,host);
      
      /* initiate */
      erl_init(NULL,0);

      /* host, alive, alive@host, addr, cookie, creation */
      erl_connect_xinit(host,SERVER,servernode,(Erl_IpAddr)(h->h_addr_list[0]),COOKIE,0);
      
      /* let epmd know we are here */
      *epmd_fd = erl_publish(*portnr);

      return 0;
    } 
  }
  return -1;
}
Ejemplo n.º 3
0
VALUE erlix_node_init(int argc,VALUE *argv,VALUE self){
    VALUE sname,str_name;
    VALUE nhost,str_host;
    VALUE cookie,str_cookie;
    int creation;
    struct in_addr self_addr;
    char host[64];
    int nn_len;
    char *nname;
    if(erlix_node!=NULL){
        rb_raise(rb_eException,"Erlix::Node has been inited already!");
        return Qnil;
    }
    rb_scan_args(argc,argv,"12",&sname,&nhost,&cookie);
    str_name=StringValue(sname);
    if (NIL_P(nhost)) {
        memset(host,0,64);
        if(gethostname(host,64)!=0){
            rb_raise(rb_eException,"gethostname error!");
            return Qnil;
        }
    } else {
        str_host=StringValue(nhost);
        snprintf(host,64,"%s",RSTRING_PTR(str_host));
    }
    nn_len=strlen(host)+RSTRING_LEN(str_name)+2;
    nname=(char*)malloc(nn_len);
    memset(nname,0,nn_len);
    sprintf(nname,"%s@%s",RSTRING_PTR(str_name),host);
    creation=rand()%100;
    self_addr.s_addr=htonl(INADDR_ANY);
    if(!erl_connect_xinit(host,
                          RSTRING_PTR(str_name),
                          nname,
                          &self_addr,
                          NIL_P(cookie)?NULL:RSTRING_PTR(cookie),
                          creation)){
        free(nname);
        rb_raise(rb_eException,"erl_connect_xinit error!");
        return Qnil;
    }
    free(nname);
    erlix_node=(ErlixNode*)malloc(sizeof(ErlixNode));
    return self;
}
Ejemplo n.º 4
0
int main(int argc, char **argv)
#endif
{
    struct hostent *hp;
    MyTimeval start, stop;
    int i, fd, ires, tries;
    CORBA_Environment *env;
    char *this_node_name = NULL;
    char *peer_node = NULL;
    char *cookie = NULL;
    char host[HOSTNAMESZ + 1];
    char this_node[NODENAMESZ + 1];
    erlang_msg msg;
    int status, loop; 
    
#ifdef __WIN32__
    WORD wVersionRequested;
    WSADATA wsaData;
    
    wVersionRequested = MAKEWORD(2, 0);
    
    if (WSAStartup(wVersionRequested, &wsaData) != 0) {
	fprintf(stderr, "Could not load winsock2 v2.0 compatible DLL");
	exit(1);
    }
#endif
    
    progname = argv[0];
    host[HOSTNAMESZ] = '\0';
    if (gethostname(host, HOSTNAMESZ) < 0) {
	fprintf(stderr, "Can't find own hostname\n");
	done(1);
    } 
    if ((hp = gethostbyname(host)) == 0) {
	fprintf(stderr, "Can't get ip address for host %s\n", host);
	done(1);
    }
    for (i = 1; i < argc; i++) {
	if (strcmp(argv[i], "-help") == 0) {
	    usage();
	    done(0);
	} else if (strcmp(argv[i], "-this-node-name") == 0) {
	    i++;
	    this_node_name = argv[i];
	} else if (strcmp(argv[i], "-peer-node") == 0) {
	    i++;
	    peer_node = argv[i];
	} else if (strcmp(argv[i], "-cookie") == 0) {
	    i++;
	    cookie = argv[i];
	} else {
	    fprintf(stderr, "Error : invalid argument \"%s\"\n", argv[i]);
	    usage();
	    done(1);
	}
    }

    if (this_node_name == NULL || peer_node == NULL || cookie == NULL) {
	fprintf(stderr, "Error: missing option\n");
	usage();
	done(1);
    }

    /* Behead hostname at first dot */
    for (i=0; host[i] != '\0'; i++) {
	if (host[i] == '.') { host[i] = '\0'; break; }
    }
    sprintf(this_node, "%s@%s", this_node_name, host);

    fprintf(stderr, "c_server: this node: \"%s\"\n", this_node);
    fprintf(stderr, "c_server: peer node: \"%s\"\n", peer_node);

    /* initialize erl_interface */
    erl_init(NULL, 0);

    for (tries = 0; tries < MAXTRIES; tries++) {
	/* connect to peer node */ 
    	ires = erl_connect_xinit(host, this_node_name, this_node, 
				 (struct in_addr *)*hp->h_addr_list, 
				 cookie, 0);
	fprintf(stderr, "c_server: erl_connect_xinit(): %d\n", ires);
    
	fd = erl_connect(peer_node);
	fprintf(stderr, "c_server: erl_connect(): %d\n", fd);
	if (fd >= 0) 
	    break;
	fprintf(stderr, "c_server: cannot connect, retrying\n");
    }
    if (fd < 0) {
	fprintf(stderr, "c_server: cannot connect, exiting\n");
	done(1);
    }
    env = CORBA_Environment_alloc(INBUFSZ, OUTBUFSZ);
    env->_fd = fd; 

    status = 1;
    loop = 1;
    my_gettimeofday(&start);
    while (status >= 0 && loop > 0) {
        status = ei_receive_encoded(env->_fd, &env->_inbuf, &env->_inbufsz, 
				    &msg, &env->_iin); 
	switch(status) {
	case ERL_SEND:
	case ERL_REG_SEND:
	    /* get result */
	    m_i__switch(NULL, env);
	    switch(env->_major) {
	    case CORBA_NO_EXCEPTION:
		break;
	    case CORBA_SYSTEM_EXCEPTION:
		fprintf(stderr, "Request failure, reason : %s\n", 
			(char *) CORBA_exception_value(env));
		CORBA_exception_free(env);
		break;
	    default: /* Should not happen */
		CORBA_exception_free(env);
		break;
	    }
	    /* send back result data */
	    if (env->_iout > 0) 
		ei_send_encoded(env->_fd, &env->_caller, env->_outbuf, 
				env->_iout);
	    loop = 0;
	    break;
	case ERL_TICK:
	    break;
	default: 
	    if (status < 0) {
		fprintf(stderr, "Status negative: %d\n", status);
		loop = 0;
	    }
	    break;
	}
    }	
    my_gettimeofday(&stop);
    showtime(&start, &stop);

    erl_close_connection(fd);

    CORBA_free(env->_inbuf);
    CORBA_free(env->_outbuf);
    CORBA_free(env);
    if (status < 0) 
	done(-status);
    else 
	done(0); 
}
Ejemplo n.º 5
0
int main(int argc, char **argv)
#endif
{
    struct hostent *hp;
    erlang_pid pid;
    MyTimeval start, stop;
    int i, fd, ires, tres;
    IC_Env *env;
    int tries = 0;
    char *this_node_name = NULL;
    char *peer_node = NULL;
    char *peer_process_name = NULL;
    char *cookie = NULL;
    char host[HOSTNAMESZ + 1];
    TestFunc test_func = NULL;
    TestCase *test_case;
    char *test_case_name = NULL;
    
#ifdef __WIN32__
    WORD wVersionRequested;
    WSADATA wsaData;
    
    wVersionRequested = MAKEWORD(2, 0);
    
    if (WSAStartup(wVersionRequested, &wsaData) != 0) {
	fprintf(stderr, "Could not load winsock2 v2.0 compatible DLL");
	exit(1);
    }
#endif
    
    progname = argv[0];
    host[HOSTNAMESZ] = '\0';
    if (gethostname(host, HOSTNAMESZ) < 0) {
	fprintf(stderr, "Can't find own hostname\n");
	done(1);
    } 
    if ((hp = gethostbyname(host)) == 0) {
	fprintf(stderr, "Can't get ip address for host %s\n", host);
	done(1);
    }
    for (i = 1; i < argc; i++) {
	if (cmp_str(argv[i], "-help")) {
	    usage();
	    done(0);
	} else if (cmp_str(argv[i], "-this-node-name")) {
	    i++;
	    this_node_name = argv[i];
	} else if (cmp_str(argv[i], "-peer-node")) {
	    i++;
	    peer_node = argv[i];
	} else if (cmp_str(argv[i], "-peer-process-name")) {
	    i++;
	    peer_process_name = argv[i];
	} else if (cmp_str(argv[i], "-cookie")) {
	    i++;
	    cookie = argv[i];
	} else if (cmp_str(argv[i], "-test-case")) {
	    i++;
	    test_case_name = argv[i];
	} else {
	    fprintf(stderr, "Error : invalid argument \"%s\"\n", argv[i]);
	    usage();
	    done(1);
	}
    }

    if (this_node_name == NULL || peer_node == NULL || test_case_name == NULL 
	|| peer_process_name == NULL || cookie == NULL) {
	fprintf(stderr, "Error: missing option\n");
	usage();
	done(1);
    }

    test_case = test_cases;
    while (test_case->func) {
	if (cmp_str(test_case->name, test_case_name)) {
	    test_func = test_case->func;
	    break;
	}
	test_case++;
    }
    if (test_func == NULL) {
	fprintf(stderr, "Error: illegal test case: \"%s\"\n", test_case_name);
	done(1);
    }
    
    /* Behead hostname at first dot */
    for (i=0; host[i] != '\0'; i++) {
	if (host[i] == '.') { host[i] = '\0'; break; }
    }
    sprintf(this_node, "%s@%s", this_node_name, host);
    fprintf(stderr, "c_client: this node: \"%s\"\n", this_node);
    fprintf(stderr, "c_client: peer node: \"%s\"\n", peer_node);
    fprintf(stderr, "c_client: test case: \"%s\"\n", test_case_name);

    fprintf(stderr, "c_client: starting\n");

    /* initialize erl_interface */
    erl_init(NULL, 0);

    for (tries = 0; tries < MAXTRIES; tries++) {

	/* connect to erlang node */ 

    	ires = erl_connect_xinit(host, this_node_name, this_node, 
				 (struct in_addr *)*hp->h_addr_list, 
				 cookie, 0);

	fprintf(stderr, "c_client: erl_connect_xinit(): %d\n", ires);
    
	fd = erl_connect(peer_node);
	fprintf(stderr, "c_client: erl_connect(): %d\n", fd);
    
	if (fd >= 0) 
	    break;
	fprintf(stderr, "c_client: cannot connect, retrying\n");
    }
    if (fd < 0) {
	fprintf(stderr, "c_client: cannot connect, exiting\n");
	done(1);
    }
    env = CORBA_Environment_alloc(INBUFSZ, OUTBUFSZ);
    env->_fd = fd; 
    strcpy(env->_regname, peer_process_name);
    env->_to_pid = NULL;
    env->_from_pid = &pid;
    
    strcpy(pid.node, this_node);
    pid.num = fd;
    pid.serial = 0;
    pid.creation = 0;

    my_gettimeofday(&start);
    tres = test_func(env);	/* Call test case */
    my_gettimeofday(&stop);
    showtime(&start, &stop);
    erl_close_connection(fd);

    printf("c_client: env->_inbuf before : %d\n", INBUFSZ);
    printf("c_client: env->_outbuf before : %d\n", OUTBUFSZ);
    printf("c_client: env->_inbuf after : %d\n", env->_inbufsz);
    printf("c_client: env->_outbuf after : %d\n", env->_outbufsz);

    CORBA_free(env->_inbuf);
    CORBA_free(env->_outbuf);
    CORBA_free(env);
    done(tres);
}
Ejemplo n.º 6
0
int main(void)
#endif
{
  ei_x_buff eix;
  int index = 0;
  ETERM **etermpp = NULL, *etermp = NULL;
  char *charp = NULL;
  unsigned char uchar, **ucharpp = NULL, *ucharp = NULL;
  void *voidp = NULL;
  Erl_Heap *erl_heapp = NULL;
  int intx = 0;
  int *intp = NULL;
  unsigned int uintx, *uintp;
  unsigned long *ulongp = NULL;
  long longx = 0;
  double doublex = 0.0;
  short shortx = 42;
  FILE *filep = NULL;
  Erl_IpAddr erl_ipaddr = NULL;
  ErlMessage *erlmessagep = NULL;
  ErlConnect *erlconnectp = NULL;
  struct hostent *hostp = NULL;
  struct in_addr *inaddrp = NULL;

  /* Converion to erl_interface format is in liberl_interface */

  intx = erl_errno;

  ei_encode_term(charp, &index, voidp);
  ei_x_encode_term(&eix, voidp);
  ei_decode_term(charp, &index, voidp);

  erl_init(voidp, longx);
  erl_connect_init(intx, charp,shortx);
  erl_connect_xinit(charp,charp,charp,erl_ipaddr,charp,shortx);
  erl_connect(charp); 
  erl_xconnect(erl_ipaddr,charp);
  erl_close_connection(intx);
  erl_receive(intx, ucharp, intx);
  erl_receive_msg(intx, ucharp, intx, erlmessagep);
  erl_xreceive_msg(intx, ucharpp, intp, erlmessagep);
  erl_send(intx, etermp, etermp);
  erl_reg_send(intx, charp, etermp);
  erl_rpc(intx,charp,charp,etermp);
  erl_rpc_to(intx,charp,charp,etermp);
  erl_rpc_from(intx,intx,erlmessagep);

  erl_publish(intx);
  erl_accept(intx,erlconnectp);

  erl_thiscookie();
  erl_thisnodename();
  erl_thishostname();
  erl_thisalivename();
  erl_thiscreation();
  erl_unpublish(charp);
  erl_err_msg(charp);
  erl_err_quit(charp);
  erl_err_ret(charp);
  erl_err_sys(charp);

  erl_cons(etermp,etermp);
  erl_copy_term(etermp);
  erl_element(intx,etermp);

  erl_hd(etermp);
  erl_iolist_to_binary(etermp);
  erl_iolist_to_string(etermp);
  erl_iolist_length(etermp);
  erl_length(etermp);
  erl_mk_atom(charp);
  erl_mk_binary(charp,intx);
  erl_mk_empty_list();
  erl_mk_estring(charp, intx);
  erl_mk_float(doublex);
  erl_mk_int(intx);
  erl_mk_list(etermpp,intx);
  erl_mk_pid(charp,uintx,uintx,uchar);
  erl_mk_port(charp,uintx,uchar);
  erl_mk_ref(charp,uintx,uchar);
  erl_mk_long_ref(charp,uintx,uintx,uintx,uchar);
  erl_mk_string(charp);
  erl_mk_tuple(etermpp,intx);
  erl_mk_uint(uintx);
  erl_mk_var(charp);
  erl_print_term(filep,etermp);
  /*  erl_sprint_term(charp,etermp); */
  erl_size(etermp);
  erl_tl(etermp);
  erl_var_content(etermp, charp);

  erl_format(charp);
  erl_match(etermp, etermp);

  erl_global_names(intx, intp);
  erl_global_register(intx, charp, etermp);
  erl_global_unregister(intx, charp);
  erl_global_whereis(intx, charp, charp);

  erl_init_malloc(erl_heapp,longx);
  erl_alloc_eterm(uchar);
  erl_eterm_release();
  erl_eterm_statistics(ulongp,ulongp);
  erl_free_array(etermpp,intx);
  erl_free_term(etermp);
  erl_free_compound(etermp);
  erl_malloc(longx);
  erl_free(voidp);

  erl_compare_ext(ucharp, ucharp);
  erl_decode(ucharp);
  erl_decode_buf(ucharpp);
  erl_encode(etermp,ucharp);
  erl_encode_buf(etermp,ucharpp);
  erl_ext_size(ucharp);
  erl_ext_type(ucharp);
  erl_peek_ext(ucharp,intx);
  erl_term_len(etermp);

  erl_gethostbyname(charp);
  erl_gethostbyaddr(charp, intx, intx);
  erl_gethostbyname_r(charp, hostp, charp, intx, intp);
  erl_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp);

  erl_init_resolve();
  erl_distversion(intx);

  erl_epmd_connect(inaddrp);
  erl_epmd_port(inaddrp, charp, intp);

  charp  = ERL_ATOM_PTR(etermp);
  intx   = ERL_ATOM_SIZE(etermp);
  ucharp = ERL_BIN_PTR(etermp);
  intx   = ERL_BIN_SIZE(etermp);
  etermp = ERL_CONS_HEAD(etermp);
  etermp = ERL_CONS_TAIL(etermp);
  intx   = ERL_COUNT(etermp);
  doublex= ERL_FLOAT_VALUE(etermp);
  uintx  = ERL_INT_UVALUE(etermp);
  intx   = ERL_INT_VALUE(etermp);
  intx   = ERL_IS_ATOM(etermp);
  intx   = ERL_IS_BINARY(etermp);
  intx   = ERL_IS_CONS(etermp);
  intx   = ERL_IS_EMPTY_LIST(etermp);
  intx   = ERL_IS_FLOAT(etermp);
  intx   = ERL_IS_INTEGER(etermp);
  intx   = ERL_IS_LIST(etermp);
  intx   = ERL_IS_PID(etermp);
  intx   = ERL_IS_PORT(etermp);
  intx   = ERL_IS_REF(etermp);
  intx   = ERL_IS_TUPLE(etermp);
  intx   = ERL_IS_UNSIGNED_INTEGER(etermp);
  uchar  = ERL_PID_CREATION(etermp);
  charp  = ERL_PID_NODE(etermp);
  uintx  = ERL_PID_NUMBER(etermp);
  uintx  = ERL_PID_SERIAL(etermp);
  uchar  = ERL_PORT_CREATION(etermp);
  charp  = ERL_PORT_NODE(etermp);
  uintx  = ERL_PORT_NUMBER(etermp);
  uchar  = ERL_REF_CREATION(etermp);
  intx   = ERL_REF_LEN(etermp);
  charp  = ERL_REF_NODE(etermp);
  uintx  = ERL_REF_NUMBER(etermp);
  uintp  = ERL_REF_NUMBERS(etermp);
  etermp = ERL_TUPLE_ELEMENT(etermp,intx);
  intx   = ERL_TUPLE_SIZE(etermp);

  return 
      BUFSIZ +
      EAGAIN +
      EHOSTUNREACH +
      EINVAL +
      EIO +
      EMSGSIZE +
      ENOMEM +
      ERL_ATOM +
      ERL_BINARY +
      ERL_ERROR +
      ERL_EXIT +
      ERL_FLOAT +
      ERL_INTEGER +
      ERL_LINK +
      ERL_LIST +
      ERL_MSG +
      ERL_NO_TIMEOUT +
      ERL_PID +
      ERL_PORT +
      ERL_REF +
      ERL_REG_SEND +
      ERL_SEND +
      ERL_SMALL_BIG +
      ERL_TICK +
      ERL_TIMEOUT +
      ERL_TUPLE +
      ERL_UNLINK +
      ERL_U_INTEGER +
      ERL_U_SMALL_BIG +
      ERL_VARIABLE +
      ETIMEDOUT +
      MAXNODELEN +
      MAXREGLEN;
}
Ejemplo n.º 7
0
int main(int argc, char **argv) {
  struct in_addr addr;           /* 32-bit IP number of host */
  int port;                      /* Listen port number */
  int listen;                    /* Listen socket */
  int fd;                        /* fd to Erlang node */
  ErlConnect conn;               /* Connection data */
  
  int loop = 1;                  /* Lopp flag */
  int got;                       /* Result of receive */
  unsigned char buf[BUFSIZE];    /* Buffer for incoming message */
  ErlMessage emsg;               /* Incoming message */
  
  ETERM *fromp, *tuplep, *fnp, *argp, *resp;
  int res;
  
  port = atoi(argv[1]);
  
  erl_init(NULL, 0);
  
  addr.s_addr = inet_addr("127.0.0.1");
  if (erl_connect_xinit("alpha", "cnode", "*****@*****.**", 
    &addr, "secretcookie", 0) == -1)
      erl_err_quit("erl_connect_xinit");
  
  /* Make a listen socket */
  if ((listen = my_listen(port)) <= 0)
    erl_err_quit("my_listen");

  if (erl_publish(port) == -1)
    erl_err_quit("erl_publish");

  if ((fd = erl_accept(listen, &conn)) == ERL_ERROR)
    erl_err_quit("erl_accept");
  fprintf(stderr, "Connected to %s\n\r", conn.nodename);
  
  while (loop) {
    
    got = erl_receive_msg(fd, buf, BUFSIZE, &emsg);
    if (got == ERL_TICK) {
      /* ignore */
    } else if (got == ERL_ERROR) {
      loop = 0;
    } else {
      
      if (emsg.type == ERL_REG_SEND) {
        fromp = erl_element(2, emsg.msg);
        tuplep = erl_element(3, emsg.msg);
        fnp = erl_element(1, tuplep);
        argp = erl_element(2, tuplep);
        
        if (strncmp(ERL_ATOM_PTR(fnp), "foo", 3) == 0) {
          res = foo(ERL_INT_VALUE(argp));
        } else if (strncmp(ERL_ATOM_PTR(fnp), "bar", 3) == 0) {
          res = bar(ERL_INT_VALUE(argp));
        }
        
        resp = erl_format("{cnode, ~i}", res);
        erl_send(fd, fromp, resp);

        erl_free_term(emsg.from);
        erl_free_term(emsg.msg);
        erl_free_term(fromp);
        erl_free_term(tuplep);
        erl_free_term(fnp);
        erl_free_term(argp);
        erl_free_term(resp);
      }
    }
  } /* while */
}
Ejemplo n.º 8
0
int init_erlang(char *nodename, char *cookie) {

	struct sockaddr_in e_addr;

	char *ip;
	char *node;
	int efd;
	int rlen;
	char *cookiefile;
	char *cookiehome;
	char cookievalue[128];
	int cookiefd;

	PyMethodDef *uwsgi_function;


	ip = strchr(nodename, '@');

	if (ip == NULL) {
		fprintf(stderr, "*** invalid erlang node name ***\n");
		return -1;
	}

	if (cookie == NULL) {
		// get the cookie from the home
		cookiehome = getenv("HOME");
		if (!cookiehome) {
			fprintf(stderr, "unable to get erlang cookie from your home.\n");
			return -1;
		}
		cookiefile = malloc(strlen(cookiehome) + 1 + strlen(".erlang.cookie") + 1);
		if (!cookiefile) {
			uwsgi_error("malloc()");
		}
		cookiefile[0] = 0;
		strcat(cookiefile, cookiehome);
		strcat(cookiefile, "/.erlang.cookie");

		cookiefd = open(cookiefile, O_RDONLY);
		if (cookiefd < 0) {
			uwsgi_error("open()");
			free(cookiefile);
			return -1;
		}

		memset(cookievalue, 0, 128);
		if (read(cookiefd, cookievalue, 127) < 1) {
			fprintf(stderr, "invalid cookie found in %s\n", cookiefile);
			close(cookiefd);
			free(cookiefile);
			return -1;
		}
		cookie = cookievalue;
		close(cookiefd);
		free(cookiefile);
	}

	node = malloc((ip - nodename) + 1);
	if (node == NULL) {
		uwsgi_error("malloc()");
		return -1;
	}
	memset(node, 0, (ip - nodename) + 1);
	memcpy(node, nodename, ip - nodename);

	erl_init(NULL, 0);

	if (erl_connect_xinit(ip + 1, node, nodename, NULL, cookie, 0) == -1) {
		fprintf(stderr, "*** unable to initialize erlang c-node ***\n");
		return -1;
	}

	efd = socket(AF_INET, SOCK_STREAM, 0);
	if (efd < 0) {
		uwsgi_error("socket()");
		return -1;
	}


	memset(&e_addr, 0, sizeof(struct sockaddr_in));
	e_addr.sin_family = AF_INET;
	e_addr.sin_addr.s_addr = inet_addr(ip + 1);

	rlen = 1;
	if (setsockopt(efd, SOL_SOCKET, SO_REUSEADDR, &rlen, sizeof(rlen))) {
		uwsgi_error("setsockopt()");
		close(efd);
		return -1;
	}

	if (bind(efd, (struct sockaddr *) &e_addr, sizeof(struct sockaddr_in)) < 0) {
		uwsgi_error("bind()");
		close(efd);
		return -1;
	}

	rlen = sizeof(struct sockaddr_in);
	if (getsockname(efd, (struct sockaddr *) &e_addr, (socklen_t *) & rlen)) {
		uwsgi_error("getsockname()");
		close(efd);
		return -1;
	}

	if (listen(efd, uwsgi.listen_queue)) {
		uwsgi_error("listen()");
		close(efd);
		return -1;
	}

	if (erl_publish(ntohs(e_addr.sin_port)) < 0) {
		fprintf(stderr, "*** unable to subscribe with EPMD ***\n");
		close(efd);
		return -1;
	}

	fprintf(stderr, "Erlang C-Node initialized on port %d you can access it with name %s\n", ntohs(e_addr.sin_port), nodename);

	for (uwsgi_function = uwsgi_erlang_methods; uwsgi_function->ml_name != NULL; uwsgi_function++) {
		PyObject *func = PyCFunction_New(uwsgi_function, NULL);
		PyDict_SetItemString(uwsgi.embedded_dict, uwsgi_function->ml_name, func);
		Py_DECREF(func);
	}

	return efd;

}