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

   1 /* -*-c-*-
   2  *
   3  * $Id: xtell.c,v 1.5 1999/08/20 07:29:19 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 /*----- Revision history --------------------------------------------------*
  30  *
  31  * $Log: xtell.c,v $
  32  * Revision 1.5  1999/08/20 07:29:19  mdw
  33  * New command line syntax, and new atom protocol.
  34  *
  35  * Revision 1.4  1998/12/11 09:50:06  mdw
  36  * Minor modifications to work with mLib and mgLib.
  37  *
  38  * Revision 1.3  1998/11/30 22:36:51  mdw
  39  * Tidy up tabbing in help texts very slightly.
  40  *
  41  * Revision 1.2  1998/11/21 22:30:25  mdw
  42  * Support GNU-style long options throughout, and introduce proper help
  43  * text to all programs.  Update manual pages to match.
  44  *
  45  * Revision 1.1  1998/11/16 23:00:49  mdw
  46  * Initial versions.
  47  *
  48  */
  49
  50 /*----- Header files ------------------------------------------------------*/
  51
  52 #include <stdio.h>
  53 #include <stdlib.h>
  54 #include <string.h>
  55
  56 #include <X11/Xlib.h>
  57 #include <X11/Xutil.h>
  58
  59 #include <mLib/mdwopt.h>
  60 #include <mLib/quis.h>
  61 #include <mLib/report.h>
  62
  63 #include "xatom.h"
  64 #include "xwait.h"
  65
  66 /*----- Main code ---------------------------------------------------------*/
  67
  68 static void version(FILE *fp)
  69 {
  70   fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS);
  71 }
  72
  73 static void usage(FILE *fp)
  74 {
  75   fprintf(fp, "Usage: %s [-d DISPLAY] [ATOM:MSG]\n", QUIS);
  76 }
  77
  78 int main(int argc, char *argv[])
  79 {
  80   char *display = 0;
  81   Display *dpy;
  82   Atom a, m;
  83   char *atom = XWAIT_DIE;
  84   char *msg = XWAIT_DIE_MSG;
  85
  86   /* --- Parse options --- */
  87
  88   ego(argv[0]);
  89
  90   for (;;) {
  91     static struct option opt[] = {
  92       { "help",         0,              0,      'h' },
  93       { "usage",        0,              0,      'u' },
  94       { "version",      0,              0,      'v' },
  95       { "display",      OPTF_ARGREQ,    0,      'd' },
  96       { "atom",         OPTF_ARGREQ,    0,      'a' },
  97       { "msg",          OPTF_ARGREQ,    0,      'm' },
  98       { 0,              0,              0,      0 }
  99     };
 100
 101     int i = mdwopt(argc, argv, "d:a:m:", opt, 0, 0, 0);
 102     if (i < 0)
 103       break;
 104     switch (i) {
 105       case 'h':
 106         version(stdout);
 107         fputs("\n", stdout);
 108         usage(stdout);
 109         fputs(
 110 "\n"
 111 "Signals a waiting `xwait' process.  Specifically, writes a property\n"
 112 "named ATOM to the X root window, with value MSG.\n"
 113 "\n"
 114 "Options:\n"
 115 "\n"
 116 "-h, --help             Display this help text\n"
 117 "-u, --usage            Display a short usage summary\n"
 118 "-v, --version          Display the program's version number\n"
 119 "\n"
 120 "-d, --display=DISPLAY  Choose X display to connect to\n"
 121 "-a, --atom=ATOM\t      Choose property name to set [deprecated]\n"
 122 "-m, --msg=MSG          Choose value of property to set [deprecated]\n",
 123           stdout);
 124         exit(0);
 125         break;
 126       case 'u':
 127         usage(stdout);
 128         exit(0);
 129         break;
 130       case 'v':
 131         version(stdout);
 132         exit(0);
 133         break;
 134
 135       case 'd':
 136         display = optarg;
 137         break;
 138       case 'a':
 139         atom = optarg;
 140         break;
 141       case 'm':
 142         msg = optarg;
 143         break;
 144       default:
 145         usage(stderr);
 146         exit(EXIT_FAILURE);
 147         break;
 148     }
 149   }
 150
 151   if (optind < argc) {
 152     char *p;
 153     if ((atom = strtok(argv[optind++], ":")) == 0)
 154       die(EXIT_FAILURE, "missing atom name");
 155     if ((p = strtok(0, ",")) != 0)
 156       msg = p;
 157   }
 158
 159   if (optind < argc) {
 160     usage(stderr);
 161     exit(EXIT_FAILURE);
 162   }
 163
 164   /* --- Set the property value and exit --- */
 165
 166   if ((dpy = XOpenDisplay(display)) == 0)
 167     die(EXIT_FAILURE, "couldn't open display");
 168
 169   a = XInternAtom(dpy, atom, False);
 170   m = XInternAtom(dpy, msg, False);
 171   xatom_set(dpy, DefaultRootWindow(dpy), a, m);
 172
 173   XCloseDisplay(dpy);
 174   return (0);
 175 }
 176
 177 /*----- That's all, folks -------------------------------------------------*/