| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: xtell.c,v 1.4 1998/12/11 09:50:06 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 1.4 1998/12/11 09:50:06 mdw |
| 33 | * Minor modifications to work with mLib and mgLib. |
| 34 | * |
| 35 | * Revision 1.3 1998/11/30 22:36:51 mdw |
| 36 | * Tidy up tabbing in help texts very slightly. |
| 37 | * |
| 38 | * Revision 1.2 1998/11/21 22:30:25 mdw |
| 39 | * Support GNU-style long options throughout, and introduce proper help |
| 40 | * text to all programs. Update manual pages to match. |
| 41 | * |
| 42 | * Revision 1.1 1998/11/16 23:00:49 mdw |
| 43 | * Initial versions. |
| 44 | * |
| 45 | */ |
| 46 | |
| 47 | /*----- Header files ------------------------------------------------------*/ |
| 48 | |
| 49 | #include <stdio.h> |
| 50 | #include <stdlib.h> |
| 51 | #include <string.h> |
| 52 | |
| 53 | #include <X11/Xlib.h> |
| 54 | #include <X11/Xutil.h> |
| 55 | |
| 56 | #include <mLib/mdwopt.h> |
| 57 | #include <mLib/quis.h> |
| 58 | |
| 59 | #include "xwait.h" |
| 60 | |
| 61 | /*----- Main code ---------------------------------------------------------*/ |
| 62 | |
| 63 | static void version(FILE *fp) |
| 64 | { |
| 65 | fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS); |
| 66 | } |
| 67 | |
| 68 | static void usage(FILE *fp) |
| 69 | { |
| 70 | fprintf(fp, "Usage: %s [-d DISPLAY] [-a ATOM] [-m MSG]\n", QUIS); |
| 71 | } |
| 72 | |
| 73 | int main(int argc, char *argv[]) |
| 74 | { |
| 75 | char *display = 0; |
| 76 | Display *dpy; |
| 77 | Atom xwait_die; |
| 78 | char *atom = XWAIT_DIE; |
| 79 | char *msg = XWAIT_DIE_MSG; |
| 80 | |
| 81 | /* --- Parse options --- */ |
| 82 | |
| 83 | ego(argv[0]); |
| 84 | |
| 85 | for (;;) { |
| 86 | static struct option opt[] = { |
| 87 | { "help", 0, 0, 'h' }, |
| 88 | { "usage", 0, 0, 'u' }, |
| 89 | { "version", 0, 0, 'v' }, |
| 90 | { "display", required_argument, 0, 'd' }, |
| 91 | { "atom", required_argument, 0, 'a' }, |
| 92 | { "msg", required_argument, 0, 'm' }, |
| 93 | { 0, 0, 0, 0 } |
| 94 | }; |
| 95 | |
| 96 | int i = getopt_long(argc, argv, "d:a:m:", opt, 0); |
| 97 | if (i < 0) |
| 98 | break; |
| 99 | switch (i) { |
| 100 | case 'h': |
| 101 | version(stdout); |
| 102 | fputs("\n", stdout); |
| 103 | usage(stdout); |
| 104 | fputs( |
| 105 | "\n" |
| 106 | "Signals a waiting `xwait' process. Specifically, writes a property\n" |
| 107 | "named ATOM to the X root window, with value MSG.\n" |
| 108 | "\n" |
| 109 | "Options:\n" |
| 110 | "\n" |
| 111 | "-h, --help Display this help text\n" |
| 112 | "-u, --usage Display a short usage summary\n" |
| 113 | "-v, --version Display the program's version number\n" |
| 114 | "\n" |
| 115 | "-d, --display=DISPLAY Choose X display to connect to\n" |
| 116 | "-a, --atom=ATOM\t Choose property name to set\n" |
| 117 | "-m, --msg=MSG Choose value of property to set\n", |
| 118 | stdout); |
| 119 | exit(0); |
| 120 | break; |
| 121 | case 'u': |
| 122 | usage(stdout); |
| 123 | exit(0); |
| 124 | break; |
| 125 | case 'v': |
| 126 | version(stdout); |
| 127 | exit(0); |
| 128 | break; |
| 129 | |
| 130 | case 'd': |
| 131 | display = optarg; |
| 132 | break; |
| 133 | case 'a': |
| 134 | atom = optarg; |
| 135 | break; |
| 136 | case 'm': |
| 137 | msg = optarg; |
| 138 | break; |
| 139 | default: |
| 140 | fprintf(stderr, "Usage: xtell [-d DISPLAY] [-a ATOM] [-m MSG]\n"); |
| 141 | exit(EXIT_FAILURE); |
| 142 | break; |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /* --- Connect to the display --- */ |
| 147 | |
| 148 | dpy = XOpenDisplay(display); |
| 149 | if (!dpy) { |
| 150 | fprintf(stderr, "xtell: couldn't open display\n"); |
| 151 | exit(EXIT_FAILURE); |
| 152 | } |
| 153 | |
| 154 | /* --- Find the right atom --- */ |
| 155 | |
| 156 | xwait_die = XInternAtom(dpy, atom, False); |
| 157 | |
| 158 | /* --- Set the property value --- */ |
| 159 | |
| 160 | { |
| 161 | XTextProperty prop; |
| 162 | if (!XGetTextProperty(dpy, DefaultRootWindow(dpy), &prop, xwait_die)) { |
| 163 | fprintf(stderr, "xtell: no xwait listening for `%s'\n", atom); |
| 164 | exit(EXIT_FAILURE); |
| 165 | } |
| 166 | XStringListToTextProperty(&msg, 1, &prop); |
| 167 | XSetTextProperty(dpy, DefaultRootWindow(dpy), &prop, xwait_die); |
| 168 | } |
| 169 | |
| 170 | /* --- Done --- */ |
| 171 | |
| 172 | XCloseDisplay(dpy); |
| 173 | return (0); |
| 174 | } |
| 175 | |
| 176 | /*----- That's all, folks -------------------------------------------------*/ |