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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: xtell.c,v 1.4 1998/12/11 09:50:06 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 1.4 1998/12/11 09:50:06 mdw |
33 | * Minor modifications to work with mLib and mgLib. |
34 | * |
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35 | * Revision 1.3 1998/11/30 22:36:51 mdw |
36 | * Tidy up tabbing in help texts very slightly. |
37 | * |
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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 | * |
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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 | |
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53 | #include <X11/Xlib.h> |
54 | #include <X11/Xutil.h> |
55 | |
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56 | #include <mLib/mdwopt.h> |
57 | #include <mLib/quis.h> |
58 | |
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59 | #include "xwait.h" |
60 | |
61 | /*----- Main code ---------------------------------------------------------*/ |
62 | |
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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 | |
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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 | |
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83 | ego(argv[0]); |
84 | |
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85 | for (;;) { |
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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); |
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97 | if (i < 0) |
98 | break; |
99 | switch (i) { |
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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" |
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116 | "-a, --atom=ATOM\t Choose property name to set\n" |
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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 | |
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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 -------------------------------------------------*/ |