sinac/sinac.c

   1 /*****************************************************************************
   2  *
   3  * xidletime
   4  *
   5  * derived from xautolock supplied by
   6  * Authors: Michel Eyckmans (MCE) & Stefan De Troch (SDT)
   7  *
   8  * --------------------------------------------------------------------------
   9  *
  10  * Copyright 1990,1992-1999,2001-2002 by Stefan De Troch and Michel Eyckmans.
  11  * Copyright 2005 by Stefan Siegl <stesie at brokenpipe.de>
  12  * Copyright 2007 by Christian Dietrich <stettberger at dokucode.de>
  13  *
  14  * Versions 2.0 and above of xautolock are available under version 2 of the
  15  * GNU GPL.
  16  *
  17  * sinac.c -L/usr/X11R6/lib -lX11 -lXss -lXext -o sinac
  18  *
  19  *****************************************************************************/
  20
  21 #include <X11/Xos.h>
  22 #include <X11/Xlib.h>
  23 #include <X11/Xutil.h>
  24 #include <X11/Xatom.h>
  25 #include <X11/Xresource.h>
  26
  27 #include <X11/extensions/scrnsaver.h>
  28
  29 #include <stdio.h>
  30
  31 #define VERSION "0.1.2"
  32
  33 static XScreenSaverInfo* xss_info = 0;
  34
  35 int
  36 seconds_idle(Display *d)
  37 {
  38   if (! xss_info )
  39     xss_info = XScreenSaverAllocInfo();
  40   XScreenSaverQueryInfo(d, DefaultRootWindow(d), xss_info);
  41   return xss_info->idle / 1000;
  42
  43 }
  44
  45 int
  46 main (int argc, char* argv[])
  47 {
  48   Display* d;
  49   int wait = 0, i, idle;
  50
  51   for (i = 1; i < argc; i++) {
  52     if ((strcmp(argv[i], "-w") == 0) && (i+1 < argc))
  53       wait = atoi(argv[++i]), idle;
  54     else if (strcmp(argv[i], "-p") == 0)
  55       wait = 0;
  56     else {
  57       fprintf(stderr, "sinac - " VERSION ": %s [-w <seconds>] [-p]\n",
  58               argv[0]);
  59       return 1;
  60     }
  61   }
  62
  63   if (!(d = XOpenDisplay (0))) {
  64     fprintf (stderr, "Couldn't connect to %s\n", XDisplayName (0));
  65     return 1;
  66   }
  67   (void) XSync (d, 0);
  68
  69   if (wait)
  70     while ((idle = seconds_idle(d)) < wait)
  71       sleep(wait - idle - 1);
  72   else
  73     fprintf(stdout, "%ld\n", seconds_idle(d));
  74
  75   return 0;
  76 }