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