137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/* (C)opyright MMIV-MMV Anselm R. Garbe <garbeam at gmail dot com>
|
|
* See LICENSE file for license details.
|
|
*/
|
|
#define _XOPEN_SOURCE
|
|
|
|
#if HAVE_SHADOW_H
|
|
#include <shadow.h>
|
|
#else
|
|
#include <pwd.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <X11/keysym.h>
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
|
|
int
|
|
main(int argc, char **argv) {
|
|
char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
|
|
char buf[32], passwd[256];
|
|
int num, prev_nitem, screen;
|
|
#if HAVE_SHADOW_H
|
|
struct spwd *sp;
|
|
#else
|
|
struct passwd *pw;
|
|
#endif
|
|
unsigned int i, len;
|
|
Bool running = True;
|
|
Cursor invisible;
|
|
Display *dpy;
|
|
KeySym ksym;
|
|
Pixmap pmap;
|
|
Window w;
|
|
XColor black, dummy;
|
|
XEvent ev;
|
|
XSetWindowAttributes wa;
|
|
|
|
if((argc > 1) && !strncmp(argv[1], "-v", 3)) {
|
|
fputs("slock-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
if(geteuid() != 0) {
|
|
fputs("slock: cannot retrieve password entry (make sure to suid slock)\n", stderr);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
#if HAVE_SHADOW_H
|
|
sp = getspnam(getenv("USER"));
|
|
endspent();
|
|
#else
|
|
pw = getpwuid(getuid());
|
|
endpwent();
|
|
#endif
|
|
if(!(dpy = XOpenDisplay(0))) {
|
|
fputs("slock: cannot open display\n", stderr);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
screen = DefaultScreen(dpy);
|
|
|
|
/* init */
|
|
passwd[0] = 0;
|
|
while(XGrabKeyboard(dpy, RootWindow(dpy, screen), True, GrabModeAsync,
|
|
GrabModeAsync, CurrentTime) != GrabSuccess)
|
|
usleep(1000);
|
|
|
|
wa.override_redirect = 1;
|
|
wa.background_pixel = BlackPixel(dpy, screen);
|
|
w = XCreateWindow(dpy, RootWindow(dpy, screen), 0, 0,
|
|
DisplayWidth(dpy, screen), DisplayHeight(dpy, screen),
|
|
0, DefaultDepth(dpy, screen), CopyFromParent,
|
|
DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixel, &wa);
|
|
|
|
XAllocNamedColor(dpy, DefaultColormap(dpy, screen), "black", &black, &dummy);
|
|
pmap = XCreateBitmapFromData(dpy, w, curs, 8, 8);
|
|
invisible = XCreatePixmapCursor(dpy, pmap, pmap, &black, &black, 0, 0);
|
|
XDefineCursor(dpy, w, invisible);
|
|
XMapRaised(dpy, w);
|
|
XSync(dpy, False);
|
|
|
|
/* main event loop */
|
|
while(running && !XNextEvent(dpy, &ev))
|
|
if(ev.type == KeyPress) {
|
|
len = strlen(passwd);
|
|
buf[0] = 0;
|
|
num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0);
|
|
if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
|
|
|| IsMiscFunctionKey(ksym) || IsPFKey(ksym)
|
|
|| IsPrivateKeypadKey(ksym))
|
|
continue;
|
|
/* first check if a control mask is omitted */
|
|
if(ev.xkey.state & ControlMask) {
|
|
switch (ksym) {
|
|
case XK_h:
|
|
case XK_H: ksym = XK_BackSpace;
|
|
break;
|
|
case XK_u:
|
|
case XK_U: passwd[0] = 0;
|
|
continue;
|
|
}
|
|
}
|
|
switch(ksym) {
|
|
case XK_Return:
|
|
#if HAVE_SHADOW_H
|
|
if((running = strncmp(crypt(passwd, sp->sp_pwdp), sp->sp_pwdp, sizeof(passwd))))
|
|
#else
|
|
if((running = strncmp(crypt(passwd, pw->pw_passwd), pw->pw_passwd, sizeof(passwd))))
|
|
#endif
|
|
XBell(dpy, 100);
|
|
passwd[0] = 0;
|
|
break;
|
|
case XK_Escape:
|
|
passwd[0] = 0;
|
|
break;
|
|
case XK_BackSpace:
|
|
if(len)
|
|
passwd[--len] = 0;
|
|
break;
|
|
default:
|
|
if(num && !iscntrl((int) buf[0])) {
|
|
buf[num] = 0;
|
|
if(len)
|
|
strncat(passwd, buf, sizeof(passwd));
|
|
else
|
|
strncpy(passwd, buf, sizeof(passwd));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
XFreePixmap(dpy, pmap);
|
|
XDestroyWindow(dpy, w);
|
|
XCloseDisplay(dpy);
|
|
return 0;
|
|
}
|