mdw@git.distorted.org.uk Git - xtoys/blob - xtell.c

   1 /* -*-c-*-
   2  *
   3  * $Id: xtell.c,v 1.6 2004/04/08 01:36:29 mdw Exp $
   4  *
   5  * Wake up a waiting xwait process
   6  *
   7  * (c) 1998 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of the Edgeware X tools collection.
  13  *
  14  * X tools is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * X tools is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with X tools; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Header files ------------------------------------------------------*/
  30
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34
  35 #include <X11/Xlib.h>
  36 #include <X11/Xutil.h>
  37
  38 #include <mLib/mdwopt.h>
  39 #include <mLib/quis.h>
  40 #include <mLib/report.h>
  41
  42 #include "xatom.h"
  43 #include "xwait.h"
  44
  45 /*----- Main code ---------------------------------------------------------*/
  46
  47 static void version(FILE *fp)
  48 {
  49   fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS);
  50 }
  51
  52 static void usage(FILE *fp)
  53 {
  54   fprintf(fp, "Usage: %s [-d DISPLAY] [ATOM:MSG]\n", QUIS);
  55 }
  56
  57 int main(int argc, char *argv[])
  58 {
  59   char *display = 0;
  60   Display *dpy;
  61   Atom a, m;
  62   char *atom = XWAIT_DIE;
  63   char *msg = XWAIT_DIE_MSG;
  64
  65   /* --- Parse options --- */
  66
  67   ego(argv[0]);
  68
  69   for (;;) {
  70     static struct option opt[] = {
  71       { "help",         0,              0,      'h' },
  72       { "usage",        0,              0,      'u' },
  73       { "version",      0,              0,      'v' },
  74       { "display",      OPTF_ARGREQ,    0,      'd' },
  75       { "atom",         OPTF_ARGREQ,    0,      'a' },
  76       { "msg",          OPTF_ARGREQ,    0,      'm' },
  77       { 0,              0,              0,      0 }
  78     };
  79
  80     int i = mdwopt(argc, argv, "d:a:m:", opt, 0, 0, 0);
  81     if (i < 0)
  82       break;
  83     switch (i) {
  84       case 'h':
  85         version(stdout);
  86         fputs("\n", stdout);
  87         usage(stdout);
  88         fputs(
  89 "\n"
  90 "Signals a waiting `xwait' process.  Specifically, writes a property\n"
  91 "named ATOM to the X root window, with value MSG.\n"
  92 "\n"
  93 "Options:\n"
  94 "\n"
  95 "-h, --help             Display this help text\n"
  96 "-u, --usage            Display a short usage summary\n"
  97 "-v, --version          Display the program's version number\n"
  98 "\n"
  99 "-d, --display=DISPLAY  Choose X display to connect to\n"
 100 "-a, --atom=ATOM\t      Choose property name to set [deprecated]\n"
 101 "-m, --msg=MSG          Choose value of property to set [deprecated]\n",
 102           stdout);
 103         exit(0);
 104         break;
 105       case 'u':
 106         usage(stdout);
 107         exit(0);
 108         break;
 109       case 'v':
 110         version(stdout);
 111         exit(0);
 112         break;
 113
 114       case 'd':
 115         display = optarg;
 116         break;
 117       case 'a':
 118         atom = optarg;
 119         break;
 120       case 'm':
 121         msg = optarg;
 122         break;
 123       default:
 124         usage(stderr);
 125         exit(EXIT_FAILURE);
 126         break;
 127     }
 128   }
 129
 130   if (optind < argc) {
 131     char *p;
 132     if ((atom = strtok(argv[optind++], ":")) == 0)
 133       die(EXIT_FAILURE, "missing atom name");
 134     if ((p = strtok(0, ",")) != 0)
 135       msg = p;
 136   }
 137
 138   if (optind < argc) {
 139     usage(stderr);
 140     exit(EXIT_FAILURE);
 141   }
 142
 143   /* --- Set the property value and exit --- */
 144
 145   if ((dpy = XOpenDisplay(display)) == 0)
 146     die(EXIT_FAILURE, "couldn't open display");
 147
 148   a = XInternAtom(dpy, atom, False);
 149   m = XInternAtom(dpy, msg, False);
 150   xatom_set(dpy, DefaultRootWindow(dpy), a, m);
 151
 152   XCloseDisplay(dpy);
 153   return (0);
 154 }
 155
 156 /*----- That's all, folks -------------------------------------------------*/