Beispiel #1
0
int main() {
  ETERM *tuplep, *intp;
  ETERM *fnp, *argp;
  int res;
  byte buf[100];
  long allocated, freed;

  erl_init(NULL, 0);

  while (read_cmd(buf) > 0) {
    tuplep = erl_decode(buf);
    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", 17) == 0) {
      res = bar(ERL_INT_VALUE(argp));
    }

    intp = erl_mk_int(res);
    erl_encode(intp, buf);
    write_cmd(buf, erl_term_len(intp));

    erl_free_compound(tuplep);
    erl_free_term(fnp);
    erl_free_term(argp);
    erl_free_term(intp);
  }
}
Beispiel #2
0
void respond(ETERM *r) 
{
  byte buf[2048];
  bzero(buf, 2048);
  erl_encode(r, buf);
  write_cmd(buf, erl_term_len(r));

  fprintf(log, "sending response back\n");
}
Beispiel #3
0
int main()
{
  ETERM *tuplep;
  ETERM *fnp;
  ETERM *args;
  byte buf[100];
  const char* func_name;

#ifdef __WIN32__
  /* Attention Windows programmers: you need [to pay Serge Aleynikov a
   * beer because he's the one who figured out how to get this to work
   * on windows :)] explicitly set mode of stdin/stdout to binary or
   * else the port program won't work.
   */
  _setmode(_fileno(stdout), _O_BINARY);
  _setmode(_fileno(stdin), _O_BINARY);
#endif

  eNotify_init();
  erl_init(NULL, 0);

  while (read_cmd(buf) > 0) {
    tuplep = erl_decode(buf);
    fnp = erl_element(1, tuplep);

    func_name =  (const char*)ERL_ATOM_PTR(fnp);
    args = erl_element(2, tuplep);

    // MATCH FIRST! -> REMEMBER THAT!
    if (strncmp(func_name, "get_error_desc", 14) == 0)
      {
		local_get_error_desc(args);
      }
    else if (strncmp(func_name, "add_watch", 9) == 0)
      {
	local_add_watch(args);
      }
    else if (strncmp(func_name, "remove_watch", 12) == 0)
      {
	local_remove_watch(args);
      }
    else
      {
	byte buf[10];
	ETERM *nok = erl_mk_atom("undef"); // alloc nok
	erl_encode(nok, buf);
	write_cmd(buf, erl_term_len(nok));
	erl_free_term(nok); // free nok
      }
    erl_free_compound(tuplep);
    erl_free_term(fnp);
  }
  return 0;
}
Beispiel #4
0
void local_remove_watch(ETERM* args)
{
  byte buf[100];
  ETERM *resp;
  ETERM *watchIDp = erl_element(1, args);
  int watchID = ERL_INT_VALUE(watchIDp);

  eNotify_removeWatch(watchID);

  // Build response
  resp = erl_mk_atom("ok"); // alloc resp
  erl_encode(resp, buf);
  write_cmd(buf, erl_term_len(resp));
  erl_free_term(resp); // free resp
}
static int
process_reply(ETERM *pid, int cmd, const char *res)
{
  ETERM *result;
  int len, retval;
  byte *buf;
  result = erl_format("{~i, ~w, ~s}", cmd, pid, res);
  len = erl_term_len(result);
  buf = erl_malloc(len);
  erl_encode(result, buf);
  retval = write_cmd(buf, len);
  erl_free_term(result);
  erl_free(buf);
  return retval;
}
Beispiel #6
0
void local_get_error_desc(ETERM* args)
{
  byte buf[100];
  ETERM *resp;
  ETERM *errorCodep = erl_element(1, args);
  long errorCode = (long)ERL_INT_VALUE(errorCodep);

  char errorDesc[1024];
  eNotify_getErrorDesc(errorCode, errorDesc, 1024);

  // Build response
  resp = erl_mk_string(errorDesc); // alloc resp
  erl_encode(resp, buf);
  write_cmd(buf, erl_term_len(resp));
  erl_free_term(resp); // free resp
}
Beispiel #7
0
void local_add_watch(ETERM* args)
{
  ETERM *pathp = erl_element(1, args);
  int pathLength = ERL_BIN_SIZE(pathp);
  char *path = ERL_BIN_PTR(pathp);

  ETERM *notifyFilterp = erl_element(2, args);
  unsigned int notifyFilter_ui = ERL_INT_UVALUE(notifyFilterp);
  long notifyFilter = (long)notifyFilter_ui;

  ETERM *watchSubdirsp = erl_element(3, args);
  int watchSubdirs = ERL_INT_VALUE(watchSubdirsp);

  int watchID = eNotify_addWatch(path, pathLength, notifyFilter, watchSubdirs);

  // Prepare response
  ETERM *tuplep;
  ETERM *tupleArray[2];

  if (watchID < 0)
  {
	  long errorCode = (long)(-watchID);
	  char errorDesc[1024];
	  eNotify_getErrorDesc(errorCode, errorDesc, 1024);
	  tupleArray[0] = erl_mk_atom("error");
	  tupleArray[1] = erl_mk_string(errorDesc);
  }
  else if (0 == watchID)
  {
	  // this may happen if there's a problem converting
	  // a path from utf8 to UTF16
	  tupleArray[0] = erl_mk_atom("error");
	  tupleArray[1] = erl_mk_string("internal_error");
  }
  else
  {
	  tupleArray[0] = erl_mk_atom("ok");
	  tupleArray[1] = erl_mk_int(watchID);
  }

  char buf[1024];
  tuplep = erl_mk_tuple(tupleArray, 2);
  erl_encode(tuplep, buf);
  write_cmd(buf, erl_term_len(tuplep));

  erl_free_array(tupleArray, 2); // free contents from tupleArray
}
Beispiel #8
0
void eNotifyCallback(int watchID, int action, const void* rootPath, int rootPathLength, const void* filePath, int filePathLength)
{
 // MAX_FILE_PATHNAME_LENGTH * 2 because we are passing 2 paths
  byte buf[MAX_FILE_PATHNAME_LENGTH*2];
  ETERM *tuplep;

  // Build response
  ETERM *tupleArray[4];
  tupleArray[0] = erl_mk_int(watchID);
  tupleArray[1] = erl_mk_int(action);
  tupleArray[2] = erl_mk_binary(rootPath, rootPathLength);
  tupleArray[3] = erl_mk_binary(filePath, filePathLength);
  tuplep = erl_mk_tuple(tupleArray, 4);

  erl_encode(tuplep, buf);
  write_cmd(buf, erl_term_len(tuplep));

  // free contents from tupleArray
  erl_free_array(tupleArray, 4);
}
Beispiel #9
0
void * handle_command(void *buf){
  ETERM *tuplep, *file;
  ETERM *fnp;
  tuplep = erl_decode(buf);
  fnp = erl_element(1, tuplep);
  char * path = "./priv/sample_images/ABST.00000000.tif";
  IplImage *source = cvLoadImage( path, CV_LOAD_IMAGE_GRAYSCALE );
  CvMat* pngImage = img(source);

  //if (strncmp(ERL_ATOM_PTR(fnp), "img", 3) == 0) {
    // no-op for now?
  //}

  file = erl_mk_binary((char *)pngImage->data.ptr, pngImage->cols);
  erl_encode(file, buf);
  write_cmd(buf, erl_term_len(file));

  erl_free_compound(tuplep);
  erl_free_term(fnp);
  erl_free_term(file);
}
Beispiel #10
0
static int process_reply(ETERM *pid, int cmd, int res)
{
  ETERM *result;
  int len, retval;
  const char *errtxt;
  byte *buf;
  if (res == PAM_SUCCESS)
    result = erl_format("{~i, ~w, true}", cmd, pid);
  else
    {
      errtxt = pam_strerror(NULL, res);
      result = erl_format("{~i, ~w, {false, ~s}}", cmd, pid, errtxt);
    }
  len = erl_term_len(result);
  buf = erl_malloc(len);
  erl_encode(result, buf);
  retval = write_cmd((char *)buf, len);
  erl_free_term(result);
  erl_free(buf);
  return retval;
}
Beispiel #11
0
int
write_msg(ETERM *msg)
{
  unsigned char *buf;
  msglen_t nlen, buflen;

  buflen = erl_term_len(msg);
  buf = (unsigned char *)safe_malloc(buflen);
  erl_encode(msg, buf);
  erl_free_term(msg);

  nlen = htonl(buflen);
  if (restartable_write((unsigned char *)&nlen, sizeof(nlen)) == -1) {
    free(buf);
    return -1;
  }
  if (restartable_write(buf, buflen) == -1) {
    free(buf);
    return -1;
  }
  free(buf);

  return 0;
}
Beispiel #12
0
int erl_global_register(int fd, const char *name, ETERM *pid)
{
  char buf[EISMALLBUF];
  char *bufp=buf;
  char tmpbuf[64];
  int index = 0;
  erlang_pid self;
  erlang_msg msg;
  int needlink, needatom, needmonitor;
  int arity;
  int version;
  int msglen;
  int i;

  /* get that pid into a better format */
  if (!erl_encode(pid,(unsigned char*)buf)) return -1;
  if (ei_decode_version(buf,&index,&version)
      || ei_decode_pid(buf,&index,&self)) return -1;
  
  /* set up rpc arguments */
  /* { PidFrom, { call, Mod, Fun, Args, user }}  */
  index = 0;
  ei_encode_version(buf,&index);
  ei_encode_tuple_header(buf,&index,2);
  ei_encode_pid(buf,&index,&self);               /* PidFrom */
  ei_encode_tuple_header(buf,&index,5);
  ei_encode_atom(buf,&index,"call");            /* call */
  ei_encode_atom(buf,&index,"global");          /* Mod */
  ei_encode_atom(buf,&index,"register_name_external");    /* Fun */
  ei_encode_list_header(buf,&index,3);     /* Args: [ name, self(), cnode ] */
  ei_encode_atom(buf,&index,name);
  ei_encode_pid(buf,&index,&self); 
  ei_encode_tuple_header(buf,&index,2);
  ei_encode_atom(buf,&index,"global"); /* special "resolve" treatment */ 
  ei_encode_atom(buf,&index,"cnode");  /* i.e. we get a SEND when conflict */
  ei_encode_empty_list(buf,&index);
  ei_encode_atom(buf,&index,"user");            /* user */

  /* make the rpc call */
  if (ei_send_reg_encoded(fd,&self,"rex",buf,index)) return -1;

  /* get the reply: expect link and an atom, or just an atom */
  needlink = needatom = needmonitor = 1;
  while (1) {
    /* get message */
    while (1) {
      index = EISMALLBUF;
      if (!(i = ei_recv_internal(fd,&bufp,&index,&msg,&msglen,1,0))) continue;
      else break;
    }

    switch (i) {
    case ERL_LINK:
      /* got link */
      if (!needlink) return -1;
      needlink = 0;
      break;
      
    case ERL_MONITOR_P-10:
      /* got monitor */
	if (!needmonitor) { return -1;}
	needmonitor = 0;
      break;

    case ERL_SEND:
      /* got message - does it contain our atom? */
      if (!needatom) return -1;
      else {
	/* expecting { rex, yes } */
	index = 0;
	if (ei_decode_version(buf,&index,&version) 
	    || ei_decode_tuple_header(buf,&index,&arity) 
	    || (arity != 2) 
	    || ei_decode_atom(buf,&index,tmpbuf) 
	    || strcmp(tmpbuf,"rex")
	    || ei_decode_atom(buf,&index,tmpbuf) 
	    || strcmp(tmpbuf,"yes"))
	  return -1; /* bad response from other side */

	/* we're done */
	return 0;
      }
      break;
      
    default:
      return -1; /* something else */
    }
  }
  return 0;
}
Beispiel #13
0
int main(int argc, char **argv) {
  libusb_context *ctx = NULL;
  dongleHandle dongle;
  int option;
  int address;
  int bus;
  ETERM *tuplep;
  ETERM *functionp;
  unsigned char buf[1024];
  const char* func_name;

  address = -1;
  bus = -1;

  while ((option = getopt(argc, argv, "p:b:")) != -1) {
    switch (option) {
      case 'p':
        address = atoi(optarg);
        break;
      case 'b':
        bus = atoi(optarg);
        break;
      default:
        return 1;
    }
  }

  if (bus == -1 || address == -1) {
    return 1;
  }

  erl_init(NULL, 0);

  initDongle(ctx);
  dongle = getDongle(ctx, address, bus);
  if (dongle == NULL) {
    ERL_WRITE_ERROR("not_found");
    exitDongle(ctx);
    return 1;
  }

  while (read_cmd(buf) > 0) {
    tuplep = erl_decode(buf);
    functionp = erl_element(1, tuplep);

    func_name = (const char*)ERL_ATOM_PTR(functionp);
    if (strncmp(func_name, "derive", 6) == 0){
      hsm_derive(dongle, tuplep);
    } else if (strncmp(func_name, "import", 6) == 0){
      hsm_import(dongle, tuplep);
    } else if (strncmp(func_name, "pin", 3) == 0){
      hsm_pin(dongle, tuplep);
    } else if (strncmp(func_name, "pubkey", 6) == 0){
      hsm_pubkey(dongle, tuplep);
    } else if (strncmp(func_name, "random", 6) == 0){
      hsm_random(dongle, tuplep);
    } else if (strncmp(func_name, "sign", 4) == 0){
      hsm_sign(dongle, tuplep);
    } else if (strncmp(func_name, "verify", 6) == 0){
      hsm_verify(dongle, tuplep);
    } else if (strncmp(func_name, "close", 5) == 0){
      break;
    } else {
      ERL_WRITE_ERROR("undef")
    }
    erl_free_compound(tuplep);
    erl_free_term(functionp);
  }

  closeDongle(dongle);
  exitDongle(ctx);

  ETERM *atom;
  atom = erl_mk_atom("closed");
  unsigned char closed_buf[erl_term_len(atom)];
  erl_encode(atom, closed_buf);
  write_cmd(closed_buf, erl_term_len(atom));
  erl_free_term(atom);
  fprintf(stderr, "CLOSED");

  return 0;
}
Beispiel #14
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;
}
Beispiel #15
0
int main(int argc, char* argv[]) {
  ETERM *tuplep, *fnp, *pathp, *binp, *widthp, *heightp;
  ETERM *res_tuplep;
  ETERM *res_arrp[2];
  ETERM *res_ok_atomp, *res_error_atomp, *res_error_cause_atomp;

  int idx = 1;
  byte *buf = malloc(INIT_BUF_SIZE);
  int buf_len = INIT_BUF_SIZE;
  int res_len;

  erl_init(NULL, 0);

  //Create common atoms(ok, error)
  res_ok_atomp = erl_mk_atom("ok");
  res_error_atomp = erl_mk_atom("error");
  res_error_cause_atomp = erl_mk_atom("resize failed");

  while (read_cmd(&buf, &buf_len) > 0) {
    tuplep = erl_decode(buf);
    fnp     = erl_element(idx++, tuplep);
    pathp   = erl_element(idx++, tuplep);
    binp    = erl_element(idx++, tuplep);
    widthp  = erl_element(idx++, tuplep);
    heightp = erl_element(idx++, tuplep);
    
    if (strncmp(ERL_ATOM_PTR(fnp), "resize", 6) == 0) {
      char* algop = ERL_ATOM_PTR(fnp) + 6;
      resizerl_handler* rhp = (strncmp(algop, "_opencv", 7) == 0) ? resizerl_impls[0] : NULL;
      if (rhp == NULL) {
        exit(1);
      }
      // ERL_INT_VALUE, ERL_BIN_PTR, ERL_BIN_SIZE
      void* dp = NULL;
      rhp->exec(ERL_BIN_PTR(binp),
                ERL_BIN_SIZE(binp),
                ERL_BIN_PTR(pathp),
                ERL_BIN_SIZE(pathp),
                ERL_INT_VALUE(widthp),
                ERL_INT_VALUE(heightp), &dp);
      if (dp == NULL) {
        exit(2);
      }
      unsigned char* dst;
      int dst_size;
      rhp->get_result(dp, &dst, &dst_size);
      res_arrp[0] = res_ok_atomp;
      res_arrp[1] = erl_mk_binary((const char*)dst, dst_size);
      res_tuplep = erl_mk_tuple(res_arrp, 2);
      res_len = erl_term_len(res_tuplep);
      if (res_len > buf_len) {
        byte* new_buf = (byte*)realloc((void*)buf, res_len);
        if (new_buf == NULL) {
          exit(3);
        }
        buf = new_buf;
        buf_len = res_len;
      }
      erl_encode(res_tuplep, buf);
      write_cmd(buf, erl_term_len(res_tuplep));
      erl_free_term(res_arrp[1]);
      erl_free_term(res_tuplep);
      rhp->release(&dp);
    } else {
      res_arrp[0] = res_error_atomp;
      res_arrp[1] = res_error_cause_atomp;
      res_tuplep = erl_mk_tuple(res_arrp, 2);
      if (res_len > buf_len) {
        byte* new_buf = (byte*)realloc((void*)buf, res_len);
        if (new_buf == NULL) {
          exit(4);
        }
        buf = new_buf;
        buf_len = res_len;
      }
      erl_encode(res_tuplep, buf);
      write_cmd(buf, erl_term_len(res_tuplep));
      erl_free_term(res_tuplep);
    }

    erl_free_compound(tuplep);
    erl_free_term(fnp);
    erl_free_term(pathp);
    erl_free_term(binp);
    erl_free_term(widthp);
    erl_free_term(heightp);
    idx = 1;
  }
  // normal
  return 0;

}
Beispiel #16
0
/**
  * Read an integer giving the maximum size of a fragment.
  */
int main( int argc, char *argv[] ) {

	int fail = 0;

	erl_init(NULL,0);
#ifdef _DEBUG
	openlog( "erlang-port", 0, LOG_USER );
	syslog( LOG_INFO, "%s is alive\n", argv[0] );
#endif
	while( ! fail ) {

		ETERM *fragsize_term = NULL;
		byte buf[100 /*WIRE_SIZEOF_INT*/];
		if( read_lpm( buf, sizeof(buf) ) <= 0 ) {
#ifdef _DEBUG
			syslog( LOG_ERR, "failed reading fragment size:\n" );
#endif
			break;
		}

		fragsize_term = erl_decode( buf );

		if( fragsize_term ) {

			ETERM **array;
			unsigned int count;
			unsigned int SIZEOF_FRAGMENT
				= ERL_INT_UVALUE(fragsize_term);
			erl_free_term( fragsize_term );

			if( SIZEOF_FRAGMENT == 0 /* the explicit signal to shutdown */ )
				break;

#ifdef _DEBUG
			syslog( LOG_INFO, "received sizeof fragment: %d\n", SIZEOF_FRAGMENT );
#endif

			count = min_packet_count( SIZEOF_IMAGE, SIZEOF_FRAGMENT );
			array = calloc( count, sizeof(ETERM*) );
			if( array ) {
				ETERM *frags;
				for(int i = 0; i < count; i++ ) {
					const size_t S
						= i+1 < count
						? SIZEOF_FRAGMENT
						: (SIZEOF_IMAGE % SIZEOF_FRAGMENT);
					array[i] = erl_mk_binary(
						TEST_IMAGE + i*SIZEOF_FRAGMENT, S );
					if( array[i] == NULL ) {
						count = i; // ...for erl_free_array below.
						fail = 1;
						break;
					}
				}
				if( fail )
					goto cleanup;
				frags = erl_mk_list( array, count );
				if( frags ) {
					const int nbyte = erl_term_len( frags );
					byte *buf = calloc( nbyte, sizeof(byte) );
					if( buf ) {
						if( erl_encode( frags, buf ) == nbyte ) {
							if( write_lpm( buf, nbyte ) != nbyte )
								fail = 1;
						} else
							fail = 1;
						free( buf );
					} else
						fail = 1;
				} else
					fail = 1;
cleanup:
				erl_free_array( array, count );
				free( array );
			}
		} else
			break;
	}
#ifdef _DEBUG
	closelog();
#endif
	return 0;
}