added XRaiseWindow workaround when new clients are launched
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anselm@garbe.us
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2
LICENSE
2
LICENSE
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@ -1,6 +1,6 @@
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MIT/X Consortium License
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© 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
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© 2006-2012 Anselm R Garbe <anselm@garbe.us>
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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86
slock.c
86
slock.c
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@ -22,25 +22,23 @@
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#include <bsd_auth.h>
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#endif
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struct st_lock {
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typedef struct {
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int screen;
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Window root, w;
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Window root, win;
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Pixmap pmap;
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};
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} Lock;
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extern const char *__progname;
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static Lock **locks;
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static int nscreens;
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static Bool running = True;
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static void
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die(const char *errstr, ...) {
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va_list ap;
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fprintf(stderr, "%s: ", __progname);
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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fprintf(stderr, "\n");
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fflush(stderr);
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exit(EXIT_FAILURE);
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}
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@ -52,7 +50,7 @@ getpw(void) { /* only run as root */
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pw = getpwuid(getuid());
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if(!pw)
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die("cannot retrieve password entry (make sure to suid or sgid slock)");
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die("slock: cannot retrieve password entry (make sure to suid or sgid slock)");
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endpwent();
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rval = pw->pw_passwd;
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@ -69,7 +67,7 @@ getpw(void) { /* only run as root */
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/* drop privileges */
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if(setgid(pw->pw_gid) < 0 || setuid(pw->pw_uid) < 0)
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die("cannot drop privileges");
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die("slock: cannot drop privileges");
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return rval;
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}
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#endif
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@ -82,10 +80,8 @@ readpw(Display *dpy, const char *pws)
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#endif
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{
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char buf[32], passwd[256];
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int num;
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int num, screen;
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unsigned int len;
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Bool running = True;
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KeySym ksym;
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XEvent ev;
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@ -96,7 +92,6 @@ readpw(Display *dpy, const char *pws)
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* had been removed and you can set it with "xset" or some other
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* utility. This way the user can easily set a customized DPMS
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* timeout. */
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while(running && !XNextEvent(dpy, &ev)) {
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if(ev.type == KeyPress) {
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buf[0] = 0;
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@ -119,7 +114,7 @@ readpw(Display *dpy, const char *pws)
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#else
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running = strcmp(crypt(passwd, pws), pws);
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#endif
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if (running != 0)
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if(running != False)
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XBell(dpy, 100);
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len = 0;
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break;
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@ -138,36 +133,37 @@ readpw(Display *dpy, const char *pws)
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break;
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}
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}
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else for(screen = 0; screen < nscreens; screen++)
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XMapRaised(dpy, locks[screen]->win);
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}
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}
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static void
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unlockscreen(Display *dpy, struct st_lock *lock) {
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if (dpy == NULL || lock == NULL)
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unlockscreen(Display *dpy, Lock *lock) {
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if(dpy == NULL || lock == NULL)
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return;
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XUngrabPointer(dpy, CurrentTime);
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XFreePixmap(dpy, lock->pmap);
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XDestroyWindow(dpy, lock->w);
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XDestroyWindow(dpy, lock->win);
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free(lock);
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}
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static struct st_lock *
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static Lock *
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lockscreen(Display *dpy, int screen) {
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char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
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unsigned int len;
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struct st_lock *lock;
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Bool running = True;
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Lock *lock;
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XColor black, dummy;
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XSetWindowAttributes wa;
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Cursor invisible;
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if (dpy == NULL || screen < 0)
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if(dpy == NULL || screen < 0)
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return NULL;
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lock = malloc(sizeof(struct st_lock));
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if (lock == NULL)
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lock = malloc(sizeof(Lock));
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if(lock == NULL)
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return NULL;
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lock->screen = screen;
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@ -177,21 +173,21 @@ lockscreen(Display *dpy, int screen) {
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/* init */
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wa.override_redirect = 1;
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wa.background_pixel = BlackPixel(dpy, lock->screen);
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lock->w = XCreateWindow(dpy, lock->root, 0, 0, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen),
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lock->win = XCreateWindow(dpy, lock->root, 0, 0, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen),
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0, DefaultDepth(dpy, lock->screen), CopyFromParent,
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DefaultVisual(dpy, lock->screen), CWOverrideRedirect | CWBackPixel, &wa);
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XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen), "black", &black, &dummy);
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lock->pmap = XCreateBitmapFromData(dpy, lock->w, curs, 8, 8);
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lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
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invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap, &black, &black, 0, 0);
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XDefineCursor(dpy, lock->w, invisible);
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XMapRaised(dpy, lock->w);
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XDefineCursor(dpy, lock->win, invisible);
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XMapRaised(dpy, lock->win);
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for(len = 1000; len; len--) {
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if(XGrabPointer(dpy, lock->root, False, ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
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GrabModeAsync, GrabModeAsync, None, invisible, CurrentTime) == GrabSuccess)
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break;
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usleep(1000);
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}
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if((running = running && (len > 0))) {
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if(running && (len > 0)) {
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for(len = 1000; len; len--) {
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if(XGrabKeyboard(dpy, lock->root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
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== GrabSuccess)
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@ -201,7 +197,7 @@ lockscreen(Display *dpy, int screen) {
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running = (len > 0);
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}
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if (!running) {
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if(!running) {
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unlockscreen(dpy, lock);
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lock = NULL;
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}
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@ -211,24 +207,17 @@ lockscreen(Display *dpy, int screen) {
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static void
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usage(void) {
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fprintf(stderr, "usage: %s -v", __progname);
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fprintf(stderr, "usage: slock [-v]");
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exit(EXIT_FAILURE);
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}
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static int
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xerrordummy(Display *dpy, XErrorEvent *ee) {
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return 0;
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}
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int
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main(int argc, char **argv) {
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#ifndef HAVE_BSD_AUTH
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const char *pws;
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#endif
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Display *dpy;
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int nscreens, screen;
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struct st_lock **locks;
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int screen;
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if((argc == 2) && !strcmp("-v", argv[1]))
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die("slock-%s, © 2006-2012 Anselm R Garbe", VERSION);
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@ -236,25 +225,21 @@ main(int argc, char **argv) {
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usage();
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if(!getpwuid(getuid()))
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die("no passwd entry for you");
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die("slock: no passwd entry for you");
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#ifndef HAVE_BSD_AUTH
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pws = getpw();
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#endif
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if(!(dpy = XOpenDisplay(0)))
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die("cannot open display");
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/* prevent default error handler to take over */
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XSetErrorHandler(xerrordummy);
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die("slock: cannot open display");
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/* Get the number of screens in display "dpy" and blank them all. */
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nscreens = ScreenCount(dpy);
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locks = malloc(sizeof(struct st_lock *) * nscreens);
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if (locks == NULL)
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die("malloc: %s", strerror(errno));
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for (screen = 0; screen < nscreens; screen++)
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locks = malloc(sizeof(Lock *) * nscreens);
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if(locks == NULL)
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die("slock: malloc: %s", strerror(errno));
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for(screen = 0; screen < nscreens; screen++)
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locks[screen] = lockscreen(dpy, screen);
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XSync(dpy, False);
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/* Everything is now blank. Now wait for the correct password. */
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@ -265,11 +250,10 @@ main(int argc, char **argv) {
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#endif
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/* Password ok, unlock everything and quit. */
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for (screen = 0; screen < nscreens; screen++)
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for(screen = 0; screen < nscreens; screen++)
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unlockscreen(dpy, locks[screen]);
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free(locks);
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XCloseDisplay(dpy);
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return 0;
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