1 /*************************************************
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* Copyright (c) The Exim Maintainers 2021 - 2022 */
7 /* See the file NOTICE for conditions of use and distribution. */
12 /* This module contains the main program of the Exim monitor, which
13 sets up the world and then lets the XtAppMainLoop function
14 run things off X events. */
17 /*************************************************
19 *************************************************/
21 /* Fallback resources */
23 static String fallback_resources[] = {"eximon.geometry: +150+0", NULL};
25 /* X11 fixed argument lists */
27 static Arg quit_args[] = {
28 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
29 {XtNlabel, (XtArgVal) " Quit "},
30 {"left", XawChainLeft},
31 {"right", XawChainLeft},
33 {"bottom", XawChainTop}
36 static Arg resize_args[] = {
37 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
38 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
39 {XtNlabel, (XtArgVal) " Size "},
40 {"left", XawChainLeft},
41 {"right", XawChainLeft},
43 {"bottom", XawChainTop}
46 static Arg update_args[] = {
47 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
48 {XtNlabel, (XtArgVal) " Update "},
49 {"left", XawChainLeft},
50 {"right", XawChainLeft},
52 {"bottom", XawChainTop}
55 static Arg hide_args[] = {
56 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
57 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
58 {XtNlabel, (XtArgVal) " Hide "},
59 {"left", XawChainLeft},
60 {"right", XawChainLeft},
62 {"bottom", XawChainTop}
65 static Arg unhide_args[] = {
66 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
67 {XtNfromHoriz,(XtArgVal) NULL}, /* must be second */
68 {XtNlabel, (XtArgVal) " Unhide "},
69 {"left", XawChainLeft},
70 {"right", XawChainLeft},
72 {"bottom", XawChainTop}
75 static Arg log_args[] = {
76 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
77 {"editType", XawtextEdit},
78 {"useStringInPlace", (XtArgVal)TRUE},
79 {"string", (XtArgVal)""}, /* dummy to get it going */
80 {"scrollVertical", XawtextScrollAlways},
81 {"scrollHorizontal", XawtextScrollAlways},
82 {"right", XawChainRight},
84 {"bottom", XawChainTop}
87 static Arg queue_args[] = {
88 {XtNfromVert, (XtArgVal) NULL}, /* must be first */
89 {"editType", XawtextEdit},
90 {"string", (XtArgVal)""}, /* dummy to get it going */
91 {"scrollVertical", XawtextScrollAlways},
92 {"right", XawChainRight},
94 {"bottom", XawChainBottom}
97 static Arg sizepos_args[] = {
98 {"width", (XtArgVal)NULL},
99 {"height", (XtArgVal)NULL},
100 {"x", (XtArgVal)NULL},
101 {"y", (XtArgVal)NULL}
104 XtActionsRec menu_action_table[] = {
105 { "menu-create", menu_create } };
107 /* Types of non-message dialog action */
111 /* Miscellaneous local variables */
113 static int dialog_action;
114 static int tick_stripchart_accumulator = 999999;
115 static int tick_interval = 2;
116 static int maxposset = 0;
117 static int minposset = 0;
118 static int x_adjustment = -1;
119 static int y_adjustment = -1;
120 static Dimension screenwidth, screenheight;
121 static Dimension original_x, original_y;
122 static Dimension maxposx, maxposy;
123 static Dimension minposx, minposy;
124 static Dimension maxwidth, maxheight;
125 static Widget outer_form_widget;
126 static Widget hide_widget;
127 static Widget above_queue_widget;
132 #ifdef STRERROR_FROM_ERRLIST
133 /*************************************************
134 * Provide strerror() for non-ANSI libraries *
135 *************************************************/
137 /* Some old-fashioned systems still around (e.g. SunOS4) don't have strerror()
138 in their libraries, but can provide the same facility by this simple
139 alternative function. */
144 if (n < 0 || n >= sys_nerr) return "unknown error number";
145 return sys_errlist[n];
147 #endif /* STRERROR_FROM_ERRLIST */
151 /*************************************************
152 * Handle attempts to write the log *
153 *************************************************/
155 /* The message gets written to stderr when log_write() is called from a
156 utility. The message always gets '\n' added on the end of it. These calls come
157 from modules such as store.c when things go drastically wrong (e.g. malloc()
158 failing). In normal use they won't get obeyed.
161 selector not relevant when running a utility
162 flags not relevant when running a utility
163 format a printf() format
164 ... arguments for format
170 log_write(unsigned int selector, int flags, const char *format, ...)
173 va_start(ap, format);
174 vfprintf(stderr, format, ap);
175 fprintf(stderr, "\n");
182 /*************************************************
183 * Extract port from address string *
184 *************************************************/
186 /* In the spool file, a host plus port is given as an IP address followed by a
187 dot and a port number. This function decodes this. It is needed by the
188 spool-reading function, and copied here to avoid having to include the whole
189 host.c module. One day the interaction between exim and eximon with regard to
190 included code MUST be tidied up!
193 address points to the string; if there is a port, the '.' in the string
194 is overwritten with zero to terminate the address
196 Returns: 0 if there is no port, else the port number.
200 host_address_extract_port(uschar * address)
205 /* Handle the "bracketed with colon on the end" format */
209 uschar *rb = address + 1;
210 while (*rb != 0 && *rb != ']') rb++;
211 if (*rb++ == 0) return 0; /* Missing ]; leave invalid address */
214 port = Ustrtol(rb + 1, &endptr, 10);
215 if (*endptr != 0) return 0; /* Invalid port; leave invalid address */
217 else if (*rb != 0) return 0; /* Bad syntax; leave invalid address */
218 memmove(address, address + 1, rb - address - 2);
222 /* Handle the "dot on the end" format */
226 int skip = -3; /* Skip 3 dots in IPv4 addresses */
228 while (*(++address) != 0)
231 if (ch == ':') skip = 0; /* Skip 0 dots in IPv6 addresses */
232 else if (ch == '.' && skip++ >= 0) break;
234 if (*address == 0) return 0;
235 port = Ustrtol(address + 1, &endptr, 10);
236 if (*endptr != 0) return 0; /* Invalid port; leave invalid address */
246 /*************************************************
248 *************************************************/
250 /* Operations on messages are done in subprocesses; this handler
251 just catches them when they finish. It causes a queue display update
252 unless configured not to. */
254 static void sigchld_handler(int sig)
256 while (waitpid(-1, NULL, WNOHANG) > 0);
257 signal(sig, sigchld_handler);
258 if (action_queue_update) tick_queue_accumulator = 999999;
263 /*************************************************
264 * Callback routines *
265 *************************************************/
268 void updateAction(Widget w, XtPointer client_data, XtPointer call_data)
270 scan_spool_input(TRUE);
272 tick_queue_accumulator = 0;
275 void hideAction(Widget w, XtPointer client_data, XtPointer call_data)
277 actioned_message[0] = 0;
278 dialog_ref_widget = w;
279 dialog_action = da_hide;
280 create_dialog(US"Hide addresses ending with", US"");
283 void unhideAction(Widget w, XtPointer client_data, XtPointer call_data)
285 skip_item *sk = queue_skip;
289 skip_item *next = sk->next;
295 XtDestroyWidget(unhide_widget);
296 unhide_widget = NULL;
298 scan_spool_input(TRUE);
300 tick_queue_accumulator = 0;
303 void quitAction(Widget w, XtPointer client_data, XtPointer call_data)
309 /* Action when the "Size" button is pressed. This is a kludged up mess
310 that I made work after much messing around. Reading the position of the
311 toplevel widget gets the absolute position of the data portion of the window,
312 excluding the window manager's furniture. However, positioning the toplevel
313 widget's window seems to position the top corner of the furniture under the twm
314 window manager, but not under fwvm and others. The two cases are distinguished
315 by the values of x_adjustment and y_adjustment.
317 For twm (adjustment >= 0), one has to fudge the miminizing function to ensure
318 that we go back to exactly the same position as before.
320 For fwvm (adjustment < 0), one has to fudge the "top left hand corner"
321 positioning to ensure that the window manager's furniture gets displayed on the
322 screen. I haven't found a way of discovering the thickness of the furniture, so
323 some screwed-in values are used.
325 This is all ad hoc, developed by floundering around as I haven't found any
326 documentation that tells me what I really should do. */
328 void resizeAction(Widget button, XtPointer client_data, XtPointer call_data)
331 Dimension width, height;
333 Window w = XtWindow(toplevel_widget);
335 /* Get the position and size of the top level widget. */
337 sizepos_args[0].value = (XtArgVal)(&width);
338 sizepos_args[1].value = (XtArgVal)(&height);
339 sizepos_args[2].value = (XtArgVal)(&x);
340 sizepos_args[3].value = (XtArgVal)(&y);
341 XtGetValues(toplevel_widget, sizepos_args, 4);
343 /* Get the position of the widget's window relative to its parent; this
344 gives the thickness of the window manager's furniture. At least it does
345 in twm. For fwvm it gives zero. The size/movement function uses this data.
346 I tried doing this before entering the main loop, but it didn't always
347 work properly with twm. Running it every time seems to be OK. */
349 XGetWindowAttributes(X_display, XtWindow(toplevel_widget), &a);
350 if (a.x != 0) x_adjustment = a.x;
351 if (a.y != 0) y_adjustment = a.y;
353 /* If at maximum size, reduce to minimum and move back to where it was
354 when maximized, if that value is set, allowing for the furniture in cases
355 where the positioning includes the furniture. */
357 if (width == maxwidth && height == maxheight)
364 xs_SetValues(toplevel_widget, 4,
366 "height", min_height,
367 "x", minposx - ((x_adjustment >= 0)? x_adjustment : 0),
368 "y", minposy - ((y_adjustment >= 0)? y_adjustment : 0));
370 xs_SetValues(toplevel_widget, 2,
372 "height", min_height);
375 /* Else always expand to maximum. If currently at minimum size, remember where
376 it was for coming back. If we don't have a value for the thickness of the
377 furniture, the implication is that the coordinates position the application
378 window, so we can't use (0,0) because that loses the furniture. Use screwed in
379 values that seem to work with fvwm. */
386 if (width == min_width && height == min_height)
393 if ((int)(x + maxwidth) > (int)screenwidth ||
394 (int)(y + maxheight + 10) > (int)screenheight)
398 xx = maxposx - ((x_adjustment >= 0)? x_adjustment : 0);
399 yy = maxposy - ((y_adjustment >= 0)? y_adjustment : 0);
403 if ((int)(x + maxwidth) > (int)screenwidth)
404 xx = (x_adjustment >= 0)? 0 : 4;
405 if ((int)(y + maxheight + 10) > (int)screenheight)
406 yy = (y_adjustment >= 0)? 0 : 21;
409 xs_SetValues(toplevel_widget, 4,
416 else xs_SetValues(toplevel_widget, 2,
418 "height", maxheight);
421 /* Ensure the window is at the top */
423 XRaiseWindow(X_display, w);
429 /*************************************************
430 * Handle input from non-msg dialogue *
431 *************************************************/
433 /* The various cases here are: hide domain, (no more yet) */
435 void NonMessageDialogue(uschar *s)
439 switch(dialog_action)
443 /* Create the unhide button if not present */
445 if (unhide_widget == NULL)
447 unhide_args[0].value = (XtArgVal) above_queue_widget;
448 unhide_args[1].value = (XtArgVal) hide_widget;
449 unhide_widget = XtCreateManagedWidget("unhide", commandWidgetClass,
450 outer_form_widget, unhide_args, XtNumber(unhide_args));
451 XtAddCallback(unhide_widget, "callback", unhideAction, NULL);
454 /* Add item to skip queue */
456 sk = (skip_item *)store_malloc(sizeof(skip_item) + Ustrlen(s));
457 sk->next = queue_skip;
459 Ustrcpy(sk->text, s);
460 sk->reveal = time(NULL) + 60 * 60;
461 scan_spool_input(TRUE);
463 tick_queue_accumulator = 0;
470 /*************************************************
472 *************************************************/
474 /* This function is called initially to set up the starting data
475 values; it then sets a timeout so that it continues to be called
478 static void ticker(XtPointer pt, XtIntervalId *i)
480 pipe_item **pp = &pipe_chain;
481 pipe_item *p = pipe_chain;
482 tick_queue_accumulator += tick_interval;
483 tick_stripchart_accumulator += tick_interval;
486 /* If we have passed the queue update time, we must do a full
487 scan of the queue, checking for new arrivals, etc. This will
488 as a by-product set the count of items for use by the stripchart
489 display. On some systems, SIGCHLD signals can get lost at busy times,
490 so just in case, clean up any completed children here. */
492 if (tick_queue_accumulator >= queue_update)
494 scan_spool_input(TRUE);
496 tick_queue_accumulator = 0;
497 if (tick_stripchart_accumulator >= stripchart_update)
498 tick_stripchart_accumulator = 0;
499 while (waitpid(-1, NULL, WNOHANG) > 0);
502 /* Otherwise, if we have exceeded the stripchart interval,
503 do a reduced queue scan that simply provides the count for
506 else if (tick_stripchart_accumulator >= stripchart_update)
508 scan_spool_input(FALSE);
509 tick_stripchart_accumulator = 0;
512 /* Scan any pipes that are set up for listening to delivery processes,
513 and display their output if their windows are still open. */
520 while ((count = read(p->fd, buffer, 254)) > 0)
523 if (p->widget != NULL) text_show(p->widget, buffer);
531 /* If configured, cause display update */
532 if (action_queue_update) tick_queue_accumulator = 999999;
535 else pp = &(p->next);
540 /* Reset the timer for next time */
542 XtAppAddTimeOut(X_appcon, tick_interval * 1000, ticker, 0);
547 /*************************************************
548 * Find Num Lock modifiers *
549 *************************************************/
551 /* Return a string with the modifiers generated by XK_Num_Lock, or return
552 NULL if XK_Num_Lock doesn't generate any modifiers. This is needed because Num
553 Lock isn't always the same modifier on all servers.
557 buf a buffer in which to put the answers (long enough to hold 5)
559 Returns: points to the buffer, or NULL
563 numlock_modifiers(Display *display, uschar *buf)
569 m = XGetModifierMapping(display);
572 printf("Not enough memory\n");
576 /* Look at Mod1 through Mod5, and fill in the buffer as necessary. */
579 for (i = 3; i < 8; i++)
581 for (j = 0; j < m->max_keypermod; j++)
583 if (XKeycodeToKeysym(display, m->modifiermap [i*m->max_keypermod + j], 0)
586 sprintf(CS(buf+Ustrlen(buf)), " Mod%d", i-2);
598 /*************************************************
600 *************************************************/
603 main(int argc, char **argv)
606 struct stat statdata;
607 uschar modbuf[] = " Mod1 Mod2 Mod3 Mod4 Mod5";
609 Widget stripchart_form_widget,
614 /* The exim global message_id needs to get set */
616 message_id_external = message_id_option + 1;
617 message_id = message_id_external + 1;
618 message_subdir[1] = 0;
620 /* Some store needs getting for big_buffer, which is used for
621 constructing file names and things. This call will initialize
622 the store_get() function. */
625 big_buffer = store_get(big_buffer_size, GET_UNTAINTED);
627 /* Set up the version string and date and output them */
630 printf("\nExim Monitor version %s (compiled %s) initializing\n",
631 version_string, version_date);
633 /* Initialize various things from the environment and arguments. */
635 init(argc, USS argv);
637 /* Set up the SIGCHLD handler */
639 signal(SIGCHLD, sigchld_handler);
641 /* Get the buffer for storing the string for the log display. */
643 log_display_buffer = US store_malloc(log_buffer_size);
644 log_display_buffer[0] = 0;
646 /* Initialize the data structures for the stripcharts */
650 /* If log_file contains the empty string, then Exim is running using syslog
651 only, and we can't tail the log. If not, open the log file and position to the
652 end of it. Before doing so, we have to detect whether the log files are
653 datestamped, and if so, sort out the name. The string in log_file already has
654 %s replaced by "main"; if datestamping is occurring, %D or %M will be present.
655 In fact, we don't need to test explicitly - just process the string with
658 Once opened, save the file's inode so that we can detect when the file is
659 switched to another one for non-datestamped files. However, allow the monitor
660 to start up without a log file (can happen if no messages have been sent
663 if (log_file[0] != 0)
665 /* Do *not* use "%s" here, we need the %D datestamp in the log_file to
667 (void)string_format(log_file_open, sizeof(log_file_open), CS log_file, NULL);
668 log_datestamping = string_datestamp_offset >= 0;
670 LOG = fopen(CS log_file_open, "r");
674 printf("*** eximon warning: can't open log file %s - will try "
675 "periodically\n", log_file_open);
679 fseek(LOG, 0, SEEK_END);
680 log_position = ftell(LOG);
681 if (fstat(fileno(LOG), &statdata))
683 perror("log file fstat");
688 log_inode = statdata.st_ino;
693 printf("*** eximon warning: no log file available to tail\n");
696 /* Now initialize the X world and create the top-level widget */
698 toplevel_widget = XtAppInitialize(&X_appcon, "Eximon", NULL, 0, &argc, argv,
699 fallback_resources, NULL, 0);
700 X_display = XtDisplay(toplevel_widget);
701 xs_SetValues(toplevel_widget, 4,
702 "title", window_title,
703 "iconName", window_title,
704 "minWidth", min_width,
705 "minHeight", min_height);
708 /* Create the action for setting up the menu in the queue display
709 window, and register the action for positioning the menu. */
711 XtAppAddActions(X_appcon, menu_action_table, 1);
712 XawSimpleMenuAddGlobalActions(X_appcon);
714 /* Set up translation tables for the text widgets we use. We don't
715 want all the generality of editing, etc. that the defaults provide.
716 This cannot be done before initializing X - the parser complains
717 about unknown events, modifiers, etc. in an unhelpful way... The
718 queue text widget has a different table which includes the button
719 for popping up the menu. Note that the order of things in these
720 tables is significant. Shift<thing> must come before <thing> as
721 otherwise it isn't noticed. */
724 <FocusIn>: display-caret(on)\n\
725 <FocusOut>: display-caret(off)\n\
728 /* The translation manager sets up passive grabs for the menu popups as a
729 result of MenuPopup(), but the grabs match only the exact modifiers listed,
730 hence combinations with and without caps-lock and num-lock must be given,
731 rather than just one "Shift<Btn1Down>" (or whatever menu_event is set to),
732 despite the fact that that notation (without a leading !) should ignore the
733 state of other modifiers. Thanks to Kevin Ryde for this information, and for
734 the function above that discovers which modifier is Num Lock, because it turns
735 out that it varies from server to server. */
737 sprintf(CS big_buffer,
738 "!%s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
739 !Lock %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
740 ", menu_event, menu_event);
742 numlock = numlock_modifiers(X_display, modbuf); /* Get Num Lock modifier(s) */
744 if (numlock != NULL) sprintf(CS big_buffer + Ustrlen(big_buffer),
745 "!%s %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
746 !Lock %s %s: menu-create() XawPositionSimpleMenu(menu) MenuPopup(menu)\n\
747 ", numlock, menu_event, numlock, menu_event);
749 sprintf(CS big_buffer + Ustrlen(big_buffer),
750 "<Btn1Down>: select-start()\n\
751 <Btn1Motion>: extend-adjust()\n\
752 <Btn1Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
753 <Btn3Down>: extend-start()\n\
754 <Btn3Motion>: extend-adjust()\n\
755 <Btn3Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
756 <Key>Up: scroll-one-line-down()\n\
757 <Key>Down: scroll-one-line-up()\n\
758 Ctrl<Key>R: search(backward)\n\
759 Ctrl<Key>S: search(forward)\n\
762 queue_trans = XtParseTranslationTable(CS big_buffer);
764 text_trans = XtParseTranslationTable(
765 "<Btn1Down>: select-start()\n\
766 <Btn1Motion>: extend-adjust()\n\
767 <Btn1Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
768 <Btn3Down>: extend-start()\n\
769 <Btn3Motion>: extend-adjust()\n\
770 <Btn3Up>: extend-end(PRIMARY,CUT_BUFFER0)\n\
771 <Key>Up: scroll-one-line-down()\n\
772 <Key>Down: scroll-one-line-up()\n\
773 Ctrl<Key>R: search(backward)\n\
774 Ctrl<Key>S: search(forward)\n\
778 /* Create a toplevel form widget to hold all the other things */
780 outer_form_widget = XtCreateManagedWidget("form", formWidgetClass,
781 toplevel_widget, NULL, 0);
783 /* Now create an inner form to hold the stripcharts */
785 stripchart_form_widget = XtCreateManagedWidget("form", formWidgetClass,
786 outer_form_widget, NULL, 0);
787 xs_SetValues(stripchart_form_widget, 5,
788 "defaultDistance", 8,
789 "left", XawChainLeft,
790 "right", XawChainLeft,
792 "bottom", XawChainTop);
794 /* Create the queue count stripchart and its label. */
796 create_stripchart(stripchart_form_widget, queue_stripchart_name);
798 /* If configured, create the size monitoring stripchart, but
799 only if the OS supports statfs(). */
801 if (size_stripchart != NULL)
804 if (size_stripchart_name == NULL)
806 size_stripchart_name = size_stripchart + Ustrlen(size_stripchart) - 1;
807 while (size_stripchart_name > size_stripchart &&
808 *size_stripchart_name == '/') size_stripchart_name--;
809 while (size_stripchart_name > size_stripchart &&
810 *size_stripchart_name != '/') size_stripchart_name--;
812 create_stripchart(stripchart_form_widget, size_stripchart_name);
814 printf("Can't create size stripchart: statfs() function not available\n");
818 /* Now create the configured input/output stripcharts; note
819 the total number includes the queue stripchart. */
821 for (i = stripchart_varstart; i < stripchart_number; i++)
822 create_stripchart(stripchart_form_widget, stripchart_title[i]);
824 /* Next in vertical order come the Resize & Quit buttons */
826 quit_args[0].value = (XtArgVal) stripchart_form_widget;
827 quit_widget = XtCreateManagedWidget("quit", commandWidgetClass,
828 outer_form_widget, quit_args, XtNumber(quit_args));
829 XtAddCallback(quit_widget, "callback", quitAction, NULL);
831 resize_args[0].value = (XtArgVal) stripchart_form_widget;
832 resize_args[1].value = (XtArgVal) quit_widget;
833 resize_widget = XtCreateManagedWidget("resize", commandWidgetClass,
834 outer_form_widget, resize_args, XtNumber(resize_args));
835 XtAddCallback(resize_widget, "callback", resizeAction, NULL);
837 /* In the absence of log tailing, the quit widget is the one above the
840 above_queue_widget = quit_widget;
842 /* Create an Ascii text widget for the log tail display if we are tailing a
843 log. Skip it if not. */
845 if (log_file[0] != 0)
847 log_args[0].value = (XtArgVal) quit_widget;
848 log_widget = XtCreateManagedWidget("log", asciiTextWidgetClass,
849 outer_form_widget, log_args, XtNumber(log_args));
850 XawTextDisplayCaret(log_widget, TRUE);
851 xs_SetValues(log_widget, 6,
852 "editType", XawtextEdit,
853 "translations", text_trans,
854 "string", log_display_buffer,
855 "length", log_buffer_size,
859 if (log_font != NULL)
861 XFontStruct *f = XLoadQueryFont(X_display, CS log_font);
862 if (f != NULL) xs_SetValues(log_widget, 1, "font", f);
865 above_queue_widget = log_widget;
868 /* The update button */
870 update_args[0].value = (XtArgVal) above_queue_widget;
871 update_widget = XtCreateManagedWidget("update", commandWidgetClass,
872 outer_form_widget, update_args, XtNumber(update_args));
873 XtAddCallback(update_widget, "callback", updateAction, NULL);
875 /* The hide button */
877 hide_args[0].value = (XtArgVal) above_queue_widget;
878 hide_args[1].value = (XtArgVal) update_widget;
879 hide_widget = XtCreateManagedWidget("hide", commandWidgetClass,
880 outer_form_widget, hide_args, XtNumber(hide_args));
881 XtAddCallback(hide_widget, "callback", hideAction, NULL);
883 /* Create an Ascii text widget for the queue display. */
885 queue_args[0].value = (XtArgVal) update_widget;
886 queue_widget = XtCreateManagedWidget("queue", asciiTextWidgetClass,
887 outer_form_widget, queue_args, XtNumber(queue_args));
888 XawTextDisplayCaret(queue_widget, TRUE);
890 xs_SetValues(queue_widget, 4,
891 "editType", XawtextEdit,
892 "height", queue_depth,
893 "width", queue_width,
894 "translations", queue_trans);
896 if (queue_font != NULL)
898 XFontStruct *f = XLoadQueryFont(X_display, CS queue_font);
899 if (f != NULL) xs_SetValues(queue_widget, 1, "font", f);
902 /* Call the ticker function to get the initial data set up. It
903 arranges to have itself recalled every 2 seconds. */
907 /* Everything is now set up; this flag is used by the regerror
908 function and also by the queue reader. */
910 eximon_initialized = TRUE;
911 printf("\nExim Monitor running\n");
913 /* Realize the toplevel and thereby get things displayed */
915 XtRealizeWidget(toplevel_widget);
917 /* Find out the size of the initial window, and set that as its
918 maximum. While we are at it, get the initial position. */
920 sizepos_args[0].value = (XtArgVal)(&maxwidth);
921 sizepos_args[1].value = (XtArgVal)(&maxheight);
922 sizepos_args[2].value = (XtArgVal)(&original_x);
923 sizepos_args[3].value = (XtArgVal)(&original_y);
924 XtGetValues(toplevel_widget, sizepos_args, 4);
926 xs_SetValues(toplevel_widget, 2,
927 "maxWidth", maxwidth,
928 "maxHeight", maxheight);
930 /* Set up the size of the screen */
932 screenwidth = XDisplayWidth(X_display, 0);
933 screenheight= XDisplayHeight(X_display,0);
935 /* Register the action table */
937 XtAppAddActions(X_appcon, actionTable, actionTableSize);
939 /* Reduce the window to the small size if this is wanted */
941 if (start_small) resizeAction(NULL, NULL, NULL);
943 /* Enter the application loop which handles things from here
944 onwards. The return statement is never obeyed, but is needed to
945 keep pedantic ANSI compilers happy. */
947 XtAppMainLoop(X_appcon);
952 /* End of em_main.c */