mirror of https://github.com/9wm/xss.git
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
|
/* xsswin -- create a screensaver window
|
||
|
|
* Copyright (C) 2008 Neale Pickett <neale@woozle.org>
|
||
|
|
*
|
||
|
|
* This program is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or (at
|
||
|
|
* your option) any later version.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful, but
|
||
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
* General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include <X11/Xlib.h>
|
||
|
|
|
||
|
|
#include "obj.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
main(int argc, char * const argv[])
|
||
|
|
{
|
||
|
|
Display *display;
|
||
|
|
Cursor invisible;
|
||
|
|
Pixmap pmap;
|
||
|
|
Window w;
|
||
|
|
|
||
|
|
if (argc < 2) {
|
||
|
|
fprintf(stderr, "Usage: %s PROGRAM [ARGUMENT ...]\n", argv[0]);
|
||
|
|
return 64; /* EX_USAGE */
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
int screen;
|
||
|
|
XSetWindowAttributes wa;
|
||
|
|
Window root;
|
||
|
|
XColor black;
|
||
|
|
int child;
|
||
|
|
|
||
|
|
zero(wa);
|
||
|
|
zero(black);
|
||
|
|
|
||
|
|
if (! (display = XOpenDisplay(NULL))) raise("cannot open display");
|
||
|
|
screen = DefaultScreen(display);
|
||
|
|
root = RootWindow(display, screen);
|
||
|
|
|
||
|
|
wa.override_redirect = 1;
|
||
|
|
wa.background_pixel = BlackPixel(display, screen);
|
||
|
|
w = XCreateWindow(display, root,
|
||
|
|
0, 0,
|
||
|
|
DisplayWidth(display, screen), DisplayHeight(display, screen), 0,
|
||
|
|
CopyFromParent, InputOutput, CopyFromParent,
|
||
|
|
CWOverrideRedirect | CWBackPixel,
|
||
|
|
&wa);
|
||
|
|
XAllocColor(display, DefaultColormap(display, screen), &black);
|
||
|
|
pmap = XCreateBitmapFromData(display, w, "\0", 1, 1);
|
||
|
|
invisible = XCreatePixmapCursor(display, pmap, pmap, &black, &black, 0, 0);
|
||
|
|
XDefineCursor(display, w, invisible);
|
||
|
|
XMapRaised(display, w);
|
||
|
|
XSync(display, False);
|
||
|
|
|
||
|
|
child = fork();
|
||
|
|
if (0 == child) {
|
||
|
|
char *nargv[argc + 1];
|
||
|
|
char id[50];
|
||
|
|
int i;
|
||
|
|
|
||
|
|
(void)snprintf(id, sizeof(id), "0x%lx", (unsigned long)w);
|
||
|
|
(void)setenv("XSS_WINDOW", id, 1);
|
||
|
|
for (i = 0; i < argc; i += 1) {
|
||
|
|
if (0 == strcmp(argv[i], "XSS_WINDOW")) {
|
||
|
|
nargv[i] = id;
|
||
|
|
} else {
|
||
|
|
nargv[i] = argv[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
nargv[argc] = NULL;
|
||
|
|
(void)execvp(nargv[1], nargv + 1);
|
||
|
|
perror("exec");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* XXX: maybe important to also watch for X events? */
|
||
|
|
(void)waitpid(-1, NULL, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (display) {
|
||
|
|
(void)XUndefineCursor(display, w);
|
||
|
|
(void)XFreePixmap(display, pmap);
|
||
|
|
(void)XCloseDisplay(display);
|
||
|
|
}
|
||
|
|
|
||
|
|
except {
|
||
|
|
fprintf(stderr, "Error: %s\n", exception);
|
||
|
|
return 69; /* EX_UNAVAILABLE */
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|