Beispiel #1
0
static int
TcpGetOptionProc(
    ClientData instanceData,	/* Socket state. */
    Tcl_Interp *interp,		/* For error reporting - can be NULL. */
    const char *optionName,	/* Name of the option to retrieve the value
				 * for, or NULL to get all options and their
				 * values. */
    Tcl_DString *dsPtr)		/* Where to store the computed value;
				 * initialized by caller. */
{
    TcpState *statePtr = instanceData;
    size_t len = 0;

    if (optionName != NULL) {
	len = strlen(optionName);
    }

    if ((len > 1) && (optionName[1] == 'e') &&
	    (strncmp(optionName, "-error", len) == 0)) {
	socklen_t optlen = sizeof(int);
	int err, ret;

        if (statePtr->status == 0) {
            ret = getsockopt(statePtr->fds.fd, SOL_SOCKET, SO_ERROR,
                    (char *) &err, &optlen);
            if (ret < 0) {
                err = errno;
            }
        } else {
            err = statePtr->status;
            statePtr->status = 0;
        }
	if (err != 0) {
	    Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(err), -1);
	}
	return TCL_OK;
    }

    if ((len == 0) || ((len > 1) && (optionName[1] == 'p') &&
	    (strncmp(optionName, "-peername", len) == 0))) {
        address peername;
        socklen_t size = sizeof(peername);

	if (getpeername(statePtr->fds.fd, &peername.sa, &size) >= 0) {
	    if (len == 0) {
		Tcl_DStringAppendElement(dsPtr, "-peername");
		Tcl_DStringStartSublist(dsPtr);
	    }
            TcpHostPortList(interp, dsPtr, peername, size);
	    if (len) {
                return TCL_OK;
            }
            Tcl_DStringEndSublist(dsPtr);
	} else {
	    /*
	     * getpeername failed - but if we were asked for all the options
	     * (len==0), don't flag an error at that point because it could be
	     * an fconfigure request on a server socket (which have no peer).
	     * Same must be done on win&mac.
	     */

	    if (len) {
		if (interp) {
		    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                            "can't get peername: %s",
			    Tcl_PosixError(interp)));
		}
		return TCL_ERROR;
	    }
	}
    }

    if ((len == 0) || ((len > 1) && (optionName[1] == 's') &&
	    (strncmp(optionName, "-sockname", len) == 0))) {
	TcpFdList *fds;
        address sockname;
        socklen_t size;
	int found = 0;

	if (len == 0) {
	    Tcl_DStringAppendElement(dsPtr, "-sockname");
	    Tcl_DStringStartSublist(dsPtr);
	}
	for (fds = &statePtr->fds; fds != NULL; fds = fds->next) {
	    size = sizeof(sockname);
	    if (getsockname(fds->fd, &(sockname.sa), &size) >= 0) {
		found = 1;
                TcpHostPortList(interp, dsPtr, sockname, size);
	    }
	}
        if (found) {
            if (len) {
                return TCL_OK;
            }
            Tcl_DStringEndSublist(dsPtr);
        } else {
            if (interp) {
                Tcl_SetObjResult(interp, Tcl_ObjPrintf(
                        "can't get sockname: %s", Tcl_PosixError(interp)));
            }
	    return TCL_ERROR;
	}
    }

    if (len > 0) {
	return Tcl_BadChannelOption(interp, optionName, "peername sockname");
    }

    return TCL_OK;
}
Beispiel #2
0
/*
** This routine implements the Sizer() function for <INPUT>,
** <SELECT> and <TEXTAREA> markup.
**
** A side effect of sizing these markups is that widgets are
** created to represent the corresponding input controls.
**
** The function normally returns 0.  But if it is dealing with
** a <SELECT> or <TEXTAREA> that is incomplete, 1 is returned.
** In that case, the sizer will be called again at some point in
** the future when more information is available.
*/
int HtmlControlSize(HtmlWidget *htmlPtr, HtmlElement *pElem){
  char *zWin;            /* Name of child widget that implements this input */
  int incomplete = 0;    /* True if data is incomplete */
  Tcl_DString cmd;       /* The complete -formcommand callback */
 
  if( pElem->input.sized ) return 0;
  pElem->input.type = InputType(pElem);
  switch( pElem->input.type ){
    case INPUT_TYPE_Checkbox:
    case INPUT_TYPE_Hidden:
    case INPUT_TYPE_Image:
    case INPUT_TYPE_Radio:
    case INPUT_TYPE_Reset:
    case INPUT_TYPE_Submit:
    case INPUT_TYPE_Text:
    case INPUT_TYPE_Password:
    case INPUT_TYPE_File: {
      int result;
      char zToken[50];

      if( pElem->input.pForm==0 || htmlPtr->zFormCommand==0 
           || htmlPtr->zFormCommand[0]==0 ){
        EmptyInput(pElem);
        break;
      }
      Tcl_DStringInit(&cmd);
      Tcl_DStringAppend(&cmd, htmlPtr->zFormCommand, -1);
      sprintf(zToken," %d input ",pElem->input.pForm->form.id);
      Tcl_DStringAppend(&cmd, zToken, -1);
      pElem->input.cnt = ++htmlPtr->nInput;
      zWin = MakeWindowName(htmlPtr, pElem);
      Tcl_DStringAppend(&cmd, zWin, -1);
      Tcl_DStringStartSublist(&cmd);
      HtmlAppendArglist(&cmd, pElem);
      Tcl_DStringEndSublist(&cmd);
      HtmlLock(htmlPtr);
      result = Tcl_GlobalEval(htmlPtr->interp, Tcl_DStringValue(&cmd));
      Tcl_DStringFree(&cmd);
      if( !HtmlUnlock(htmlPtr) ){
        SizeAndLink(htmlPtr, zWin, pElem);
      }
      HtmlFree(zWin);
      break;
    }
    case INPUT_TYPE_Select: {
      int result;
      char zToken[50];

      if( pElem->input.pForm==0 || htmlPtr->zFormCommand==0 
           || htmlPtr->zFormCommand[0]==0 ){
        EmptyInput(pElem);
        break;
      }
      Tcl_DStringInit(&cmd);
      Tcl_DStringAppend(&cmd, htmlPtr->zFormCommand, -1);
      sprintf(zToken," %d select ",pElem->input.pForm->form.id);
      Tcl_DStringAppend(&cmd, zToken, -1);
      pElem->input.cnt = ++htmlPtr->nInput;
      zWin = MakeWindowName(htmlPtr, pElem);
      Tcl_DStringAppend(&cmd, zWin, -1);
      Tcl_DStringStartSublist(&cmd);
      HtmlAppendArglist(&cmd, pElem);
      Tcl_DStringEndSublist(&cmd);
      Tcl_DStringStartSublist(&cmd);
      AddSelectOptions(&cmd, pElem, pElem->input.pEnd);
      Tcl_DStringEndSublist(&cmd);
      HtmlLock(htmlPtr);
      result = Tcl_GlobalEval(htmlPtr->interp, Tcl_DStringValue(&cmd));
      Tcl_DStringFree(&cmd);
      if( !HtmlUnlock(htmlPtr) ){
        SizeAndLink(htmlPtr, zWin, pElem);
      }
      HtmlFree(zWin);
      break;
    }
    case INPUT_TYPE_TextArea: {
      int result;
      char zToken[50];

      if( pElem->input.pForm==0 || htmlPtr->zFormCommand==0 
           || htmlPtr->zFormCommand[0]==0 ){
        EmptyInput(pElem);
        break;
      }
      Tcl_DStringInit(&cmd);
      Tcl_DStringAppend(&cmd, htmlPtr->zFormCommand, -1);
      sprintf(zToken," %d textarea ",pElem->input.pForm->form.id);
      Tcl_DStringAppend(&cmd, zToken, -1);
      pElem->input.cnt = ++htmlPtr->nInput;
      zWin = MakeWindowName(htmlPtr, pElem);
      Tcl_DStringAppend(&cmd, zWin, -1);
      Tcl_DStringStartSublist(&cmd);
      HtmlAppendArglist(&cmd, pElem);
      Tcl_DStringEndSublist(&cmd);
      Tcl_DStringStartSublist(&cmd);
      HtmlAppendText(&cmd, pElem, pElem->input.pEnd);
      Tcl_DStringEndSublist(&cmd);
      HtmlLock(htmlPtr);
      result = Tcl_GlobalEval(htmlPtr->interp, Tcl_DStringValue(&cmd));
      Tcl_DStringFree(&cmd);
      if( !HtmlUnlock(htmlPtr) ){
        SizeAndLink(htmlPtr, zWin, pElem);
      }
      HtmlFree(zWin);
      break;
    }
    case INPUT_TYPE_Applet: {
      int result;

      if( htmlPtr->zAppletCommand==0 || htmlPtr->zAppletCommand[0]==0 ){
        EmptyInput(pElem);
        break;
      }
      Tcl_DStringInit(&cmd);
      Tcl_DStringAppend(&cmd, htmlPtr->zAppletCommand, -1);
      Tcl_DStringAppend(&cmd, " ", 1);
      pElem->input.cnt = ++htmlPtr->nInput;
      zWin = MakeWindowName(htmlPtr, pElem);
      Tcl_DStringAppend(&cmd, zWin, -1);
      Tcl_DStringStartSublist(&cmd);
      HtmlAppendArglist(&cmd, pElem);
      Tcl_DStringEndSublist(&cmd);
      HtmlLock(htmlPtr);
      result = Tcl_GlobalEval(htmlPtr->interp, Tcl_DStringValue(&cmd));
      Tcl_DStringFree(&cmd);
      if( !HtmlUnlock(htmlPtr) ){
        SizeAndLink(htmlPtr, zWin, pElem);
      }
      HtmlFree(zWin);
      break;
    }
    default: {
      CANT_HAPPEN;
      pElem->base.flags &= ~HTML_Visible;
      pElem->base.style.flags |= STY_Invisible;
      pElem->input.tkwin = 0;
      break;
    }
  }
  return incomplete;
}