changeset: 45:891a4984aba6
tag: tip
user: anselm_AT_garbe.us
date: Sun Feb 05 16:38:58 2012 +0100
files: LICENSE slock.c
description:
added XRaiseWindow workaround when new clients are launched
diff -r 6f1b622597fb -r 891a4984aba6 LICENSE
--- a/LICENSE Tue Jan 24 22:10:02 2012 +0100
+++ b/LICENSE Sun Feb 05 16:38:58 2012 +0100
_AT_@ -1,6 +1,6 @@
MIT/X Consortium License
-© 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
+© 2006-2012 Anselm R Garbe <anselm_AT_garbe.us>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
diff -r 6f1b622597fb -r 891a4984aba6 slock.c
--- a/slock.c Tue Jan 24 22:10:02 2012 +0100
+++ b/slock.c Sun Feb 05 16:38:58 2012 +0100
_AT_@ -22,25 +22,23 @@
#include <bsd_auth.h>
#endif
-struct st_lock {
+typedef struct {
int screen;
- Window root, w;
+ Window root, win;
Pixmap pmap;
-};
+} Lock;
-extern const char *__progname;
+static Lock **locks;
+static int nscreens;
+static Bool running = True;
static void
die(const char *errstr, ...) {
va_list ap;
- fprintf(stderr, "%s: ", __progname);
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
- fprintf(stderr, "\n");
- fflush(stderr);
-
exit(EXIT_FAILURE);
}
_AT_@ -52,7 +50,7 @@
pw = getpwuid(getuid());
if(!pw)
- die("cannot retrieve password entry (make sure to suid or sgid slock)");
+ die("slock: cannot retrieve password entry (make sure to suid or sgid slock)");
endpwent();
rval = pw->pw_passwd;
_AT_@ -69,7 +67,7 @@
/* drop privileges */
if(setgid(pw->pw_gid) < 0 || setuid(pw->pw_uid) < 0)
- die("cannot drop privileges");
+ die("slock: cannot drop privileges");
return rval;
}
#endif
_AT_@ -82,10 +80,8 @@
#endif
{
char buf[32], passwd[256];
- int num;
-
+ int num, screen;
unsigned int len;
- Bool running = True;
KeySym ksym;
XEvent ev;
_AT_@ -96,7 +92,6 @@
* had been removed and you can set it with "xset" or some other
* utility. This way the user can easily set a customized DPMS
* timeout. */
-
while(running && !XNextEvent(dpy, &ev)) {
if(ev.type == KeyPress) {
buf[0] = 0;
_AT_@ -119,7 +114,7 @@
#else
running = strcmp(crypt(passwd, pws), pws);
#endif
- if (running != 0)
+ if(running != False)
XBell(dpy, 100);
len = 0;
break;
_AT_@ -138,36 +133,37 @@
break;
}
}
+ else for(screen = 0; screen < nscreens; screen++)
+ XMapRaised(dpy, locks[screen]->win);
}
}
static void
-unlockscreen(Display *dpy, struct st_lock *lock) {
- if (dpy == NULL || lock == NULL)
+unlockscreen(Display *dpy, Lock *lock) {
+ if(dpy == NULL || lock == NULL)
return;
XUngrabPointer(dpy, CurrentTime);
XFreePixmap(dpy, lock->pmap);
- XDestroyWindow(dpy, lock->w);
+ XDestroyWindow(dpy, lock->win);
free(lock);
}
-static struct st_lock *
+static Lock *
lockscreen(Display *dpy, int screen) {
char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
unsigned int len;
- struct st_lock *lock;
- Bool running = True;
+ Lock *lock;
XColor black, dummy;
XSetWindowAttributes wa;
Cursor invisible;
- if (dpy == NULL || screen < 0)
+ if(dpy == NULL || screen < 0)
return NULL;
- lock = malloc(sizeof(struct st_lock));
- if (lock == NULL)
+ lock = malloc(sizeof(Lock));
+ if(lock == NULL)
return NULL;
lock->screen = screen;
_AT_@ -177,21 +173,21 @@
/* init */
wa.override_redirect = 1;
wa.background_pixel = BlackPixel(dpy, lock->screen);
- lock->w = XCreateWindow(dpy, lock->root, 0, 0, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen),
+ lock->win = XCreateWindow(dpy, lock->root, 0, 0, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen),
0, DefaultDepth(dpy, lock->screen), CopyFromParent,
DefaultVisual(dpy, lock->screen), CWOverrideRedirect | CWBackPixel, &wa);
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen), "black", &black, &dummy);
- lock->pmap = XCreateBitmapFromData(dpy, lock->w, curs, 8, 8);
+ lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap, &black, &black, 0, 0);
- XDefineCursor(dpy, lock->w, invisible);
- XMapRaised(dpy, lock->w);
+ XDefineCursor(dpy, lock->win, invisible);
+ XMapRaised(dpy, lock->win);
for(len = 1000; len; len--) {
if(XGrabPointer(dpy, lock->root, False, ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync, None, invisible, CurrentTime) == GrabSuccess)
break;
usleep(1000);
}
- if((running = running && (len > 0))) {
+ if(running && (len > 0)) {
for(len = 1000; len; len--) {
if(XGrabKeyboard(dpy, lock->root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
== GrabSuccess)
_AT_@ -201,7 +197,7 @@
running = (len > 0);
}
- if (!running) {
+ if(!running) {
unlockscreen(dpy, lock);
lock = NULL;
}
_AT_@ -211,24 +207,17 @@
static void
usage(void) {
- fprintf(stderr, "usage: %s -v", __progname);
+ fprintf(stderr, "usage: slock [-v]");
exit(EXIT_FAILURE);
}
-static int
-xerrordummy(Display *dpy, XErrorEvent *ee) {
- return 0;
-}
-
int
main(int argc, char **argv) {
#ifndef HAVE_BSD_AUTH
const char *pws;
#endif
Display *dpy;
- int nscreens, screen;
-
- struct st_lock **locks;
+ int screen;
if((argc == 2) && !strcmp("-v", argv[1]))
die("slock-%s, © 2006-2012 Anselm R Garbe", VERSION);
_AT_@ -236,25 +225,21 @@
usage();
if(!getpwuid(getuid()))
- die("no passwd entry for you");
+ die("slock: no passwd entry for you");
#ifndef HAVE_BSD_AUTH
pws = getpw();
#endif
if(!(dpy = XOpenDisplay(0)))
- die("cannot open display");
- /* prevent default error handler to take over */
- XSetErrorHandler(xerrordummy);
+ die("slock: cannot open display");
/* Get the number of screens in display "dpy" and blank them all. */
nscreens = ScreenCount(dpy);
- locks = malloc(sizeof(struct st_lock *) * nscreens);
- if (locks == NULL)
- die("malloc: %s", strerror(errno));
-
- for (screen = 0; screen < nscreens; screen++)
+ locks = malloc(sizeof(Lock *) * nscreens);
+ if(locks == NULL)
+ die("slock: malloc: %s", strerror(errno));
+ for(screen = 0; screen < nscreens; screen++)
locks[screen] = lockscreen(dpy, screen);
-
XSync(dpy, False);
/* Everything is now blank. Now wait for the correct password. */
_AT_@ -265,11 +250,10 @@
#endif
/* Password ok, unlock everything and quit. */
- for (screen = 0; screen < nscreens; screen++)
+ for(screen = 0; screen < nscreens; screen++)
unlockscreen(dpy, locks[screen]);
free(locks);
-
XCloseDisplay(dpy);
return 0;
Received on Sun Feb 05 2012 - 16:38:57 CET