1 /* See LICENSE file for license details. */
2 #define _XOPEN_SOURCE 500
14 #include <sys/types.h>
15 #include <X11/keysym.h>
17 #include <X11/Xutil.h>
18 #include <X11/extensions/dpms.h>
21 #include <login_cap.h>
26 die(const char *errstr, ...) {
30 vfprintf(stderr, errstr, ap);
37 get_password() { /* only run as root */
42 die("slock: cannot retrieve password entry (make sure to suid slock)\n");
43 pw = getpwuid(getuid());
50 sp = getspnam(getenv("USER"));
57 if(setgid(pw->pw_gid) < 0 || setuid(pw->pw_uid) < 0)
58 die("slock: cannot drop privileges\n");
64 main(int argc, char **argv) {
65 char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
66 char buf[32], passwd[256];
81 XSetWindowAttributes wa;
82 CARD16 standby, suspend, off;
84 if((argc == 2) && !strcmp("-v", argv[1]))
85 die("slock-"VERSION", © 2006-2008 Anselm R Garbe\n");
87 die("usage: slock [-v]\n");
93 if(!(dpy = XOpenDisplay(0)))
94 die("slock: cannot open display\n");
95 screen = DefaultScreen(dpy);
96 root = RootWindow(dpy, screen);
99 wa.override_redirect = 1;
100 wa.background_pixel = BlackPixel(dpy, screen);
101 w = XCreateWindow(dpy, root, 0, 0, DisplayWidth(dpy, screen), DisplayHeight(dpy, screen),
102 0, DefaultDepth(dpy, screen), CopyFromParent,
103 DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixel, &wa);
104 XAllocNamedColor(dpy, DefaultColormap(dpy, screen), "black", &black, &dummy);
105 pmap = XCreateBitmapFromData(dpy, w, curs, 8, 8);
106 invisible = XCreatePixmapCursor(dpy, pmap, pmap, &black, &black, 0, 0);
107 XDefineCursor(dpy, w, invisible);
109 for(len = 1000; len; len--) {
110 if(XGrabPointer(dpy, root, False, ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
111 GrabModeAsync, GrabModeAsync, None, invisible, CurrentTime) == GrabSuccess)
115 if((running = running && (len > 0))) {
116 for(len = 1000; len; len--) {
117 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
127 if(DPMSCapable(dpy)) { /* save and customize DPMS settings */
128 DPMSGetTimeouts(dpy, &standby, &suspend, &off);
129 DPMSSetTimeouts(dpy, 10, 30, 90);
132 /* main event loop */
133 while(running && !XNextEvent(dpy, &ev)) {
134 if(ev.type == KeyPress) {
136 num = XLookupString(&ev.xkey, buf, sizeof buf, &ksym, 0);
137 if(IsKeypadKey(ksym)) {
138 if(ksym == XK_KP_Enter)
140 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
141 ksym = (ksym - XK_KP_0) + XK_0;
143 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
144 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
145 || IsPrivateKeypadKey(ksym))
151 running = !auth_userokay(getlogin(), NULL, "auth-xlock", passwd);
153 running = strcmp(crypt(passwd, pws), pws);
167 if(num && !iscntrl((int) buf[0]) && (len + num < sizeof passwd)) {
168 memcpy(passwd + len, buf, num);
175 if(DPMSCapable(dpy)) { /* restore DPMS settings */
176 DPMSSetTimeouts(dpy, standby, suspend, off);
178 XUngrabPointer(dpy, CurrentTime);
179 XFreePixmap(dpy, pmap);
180 XDestroyWindow(dpy, w);