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