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feat: Add initial config files

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Wessel T
2025-09-04 10:15:31 +02:00
commit dcc21925c4
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25
LICENSE Normal file
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MIT/X Consortium License
© 2015-2016 Markus Teich <markus.teich@stusta.mhn.de>
© 2014 Dimitris Papastamos <sin@2f30.org>
© 2006-2014 Anselm R Garbe <anselm@garbe.us>
© 2014-2016 Laslo Hunhold <dev@frign.de>
© 2016-2023 Hiltjo Posthuma <hiltjo@codemadness.org>
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

46
Makefile Normal file
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# slock - simple screen locker
# See LICENSE file for copyright and license details.
include config.mk
SRC = slock.c ${COMPATSRC}
OBJ = ${SRC:.c=.o}
all: slock
.c.o:
${CC} -c ${CFLAGS} $<
${OBJ}: config.h config.mk arg.h util.h
config.h:
cp config.def.h $@
slock: ${OBJ}
${CC} -o $@ ${OBJ} ${LDFLAGS}
clean:
rm -f slock ${OBJ} slock-${VERSION}.tar.gz
dist: clean
mkdir -p slock-${VERSION}
cp -R LICENSE Makefile README slock.1 config.mk \
${SRC} config.def.h arg.h util.h slock-${VERSION}
tar -cf slock-${VERSION}.tar slock-${VERSION}
gzip slock-${VERSION}.tar
rm -rf slock-${VERSION}
install: all
mkdir -p ${DESTDIR}${PREFIX}/bin
cp -f slock ${DESTDIR}${PREFIX}/bin
chmod 755 ${DESTDIR}${PREFIX}/bin/slock
chmod u+s ${DESTDIR}${PREFIX}/bin/slock
mkdir -p ${DESTDIR}${MANPREFIX}/man1
sed "s/VERSION/${VERSION}/g" <slock.1 >${DESTDIR}${MANPREFIX}/man1/slock.1
chmod 644 ${DESTDIR}${MANPREFIX}/man1/slock.1
uninstall:
rm -f ${DESTDIR}${PREFIX}/bin/slock
rm -f ${DESTDIR}${MANPREFIX}/man1/slock.1
.PHONY: all clean dist install uninstall

24
README Normal file
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slock - simple screen locker
============================
simple screen locker utility for X.
Requirements
------------
In order to build slock you need the Xlib header files.
Installation
------------
Edit config.mk to match your local setup (slock is installed into
the /usr/local namespace by default).
Afterwards enter the following command to build and install slock
(if necessary as root):
make clean install
Running slock
-------------
Simply invoke the 'slock' command. To get out of it, enter your password.

65
arg.h Normal file
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/*
* Copy me if you can.
* by 20h
*/
#ifndef ARG_H__
#define ARG_H__
extern char *argv0;
/* use main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
argv[0] && argv[0][0] == '-'\
&& argv[0][1];\
argc--, argv++) {\
char argc_;\
char **argv_;\
int brk_;\
if (argv[0][1] == '-' && argv[0][2] == '\0') {\
argv++;\
argc--;\
break;\
}\
for (brk_ = 0, argv[0]++, argv_ = argv;\
argv[0][0] && !brk_;\
argv[0]++) {\
if (argv_ != argv)\
break;\
argc_ = argv[0][0];\
switch (argc_)
/* Handles obsolete -NUM syntax */
#define ARGNUM case '0':\
case '1':\
case '2':\
case '3':\
case '4':\
case '5':\
case '6':\
case '7':\
case '8':\
case '9'
#define ARGEND }\
}
#define ARGC() argc_
#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
((x), abort(), (char *)0) :\
(brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
(char *)0 :\
(brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\
(argc--, argv++, argv[0])))
#define LNGARG() &argv[0][0]
#endif

41
config.def.h Normal file
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/* user and group to drop privileges to */
static const char *user = "nobody";
static const char *group = "nogroup";
static const char *colorname[NUMCOLS] = {
[INIT] = "black", /* after initialization */
[INPUT] = "#005577", /* during input */
[FAILED] = "#CC3333", /* wrong password */
};
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
/* insert grid pattern with scale 1:1, the size can be changed with logosize */
static const int logosize = 75;
/* grid width and height for right center alignment */
static const int logow = 12;
static const int logoh = 6;
static XRectangle rectangles[9] = {
/* x y w h */
{ 0, 3, 1, 3 },
{ 1, 3, 2, 1 },
{ 0, 5, 8, 1 },
{ 3, 0, 1, 5 },
{ 5, 3, 1, 2 },
{ 7, 3, 1, 2 },
{ 8, 3, 4, 1 },
{ 9, 4, 1, 2 },
{ 11, 4, 1, 2 },
};
#define BLUR /* Enable blur */
static const int blurRadius = 5; /* Set blur radius */
//#define PIXELATION /* Enable Pixelation */
static const int pixelSize = 0; /* Set pixelation radius */
static const char * text_color = "#ffffff"; /* text color */
static const char * font_name = "6x10"; /* text size (must be valid) */
/* default message */
static const char * message = "Suckless: Software that sucks less.";

41
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/* user and group to drop privileges to */
static const char *user = "nobody";
static const char *group = "nobody";
static const char *colorname[NUMCOLS] = {
[INIT] = "black", /* after initialization */
[INPUT] = "#005577", /* during input */
[FAILED] = "#CC3333", /* wrong password */
};
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
/* insert grid pattern with scale 1:1, the size can be changed with logosize */
static const int logosize = 75;
/* grid width and height for right center alignment */
static const int logow = 12;
static const int logoh = 6;
static XRectangle rectangles[9] = {
/* x y w h */
{ 0, 3, 1, 3 },
{ 1, 3, 2, 1 },
{ 0, 5, 8, 1 },
{ 3, 0, 1, 5 },
{ 5, 3, 1, 2 },
{ 7, 3, 1, 2 },
{ 8, 3, 4, 1 },
{ 9, 4, 1, 2 },
{ 11, 4, 1, 2 },
};
// #define BLUR /* Enable blur */
static const int blurRadius = 5; /* Set blur radius */
#define PIXELATION /* Enable Pixelation */
static const int pixelSize = 9; /* Set pixelation radius */
static const char * text_color = "#ffffff"; /* text color */
static const char * font_name = "Mononoki:size=40"; /* text size (must be valid) */
/* default message */
static const char * message = "Suckless: Software that sucks less.";

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# slock version
VERSION = 1.5
# Customize below to fit your system
# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man
X11INC = /usr/X11R6/include
X11LIB = /usr/X11R6/lib
# Xinerama
XINERAMALIBS = -lXinerama
XINERAMAFLAGS = -DXINERAMA
# freetype
FREETYPELIBS = -lXft
FREETYPEINC = /usr/include/freetype2
# includes and libs
INCS = -I. -I/usr/include -I${X11INC} -I${FREETYPEINC}
LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXext -lXrandr -lImlib2
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H ${XINERAMAFLAGS}
CFLAGS = -std=c99 -pedantic -Wall -Ofast ${INCS} ${CPPFLAGS}
LDFLAGS = -s ${LIBS}
COMPATSRC = explicit_bzero.c
# On OpenBSD and Darwin remove -lcrypt from LIBS
#LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lXext -lXrandr
# On *BSD remove -DHAVE_SHADOW_H from CPPFLAGS
# On NetBSD add -D_NETBSD_SOURCE to CPPFLAGS
#CPPFLAGS = -DVERSION=\"${VERSION}\" -D_BSD_SOURCE -D_NETBSD_SOURCE
# On OpenBSD set COMPATSRC to empty
#COMPATSRC =

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explicit_bzero.c Normal file
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/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
/*
* Public domain.
* Written by Matthew Dempsky.
*/
#include <string.h>
__attribute__((weak)) void
__explicit_bzero_hook(void *buf, size_t len)
{
}
void
explicit_bzero(void *buf, size_t len)
{
memset(buf, 0, len);
__explicit_bzero_hook(buf, len);
}

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explicit_bzero.o Normal file
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149
patches/slock-background-image-20220318-1c5a538.diff Normal file
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From 1c5a5383a1cf3351fe9c80a21cfbc98c5ec4355d Mon Sep 17 00:00:00 2001
From: Yan Doroshenko <yan1994doroshenko@gmail.com>
Date: Fri, 18 Mar 2022 12:28:13 +0100
Subject: [PATCH] Provide a way to set a background image
---
config.def.h | 5 ++++-
config.mk | 2 +-
slock.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++---
3 files changed, 52 insertions(+), 5 deletions(-)
diff --git a/config.def.h b/config.def.h
index 9855e21..eb88b3d 100644
--- a/config.def.h
+++ b/config.def.h
@@ -1,6 +1,6 @@
/* user and group to drop privileges to */
static const char *user = "nobody";
-static const char *group = "nogroup";
+static const char *group = "nobody";
static const char *colorname[NUMCOLS] = {
[INIT] = "black", /* after initialization */
@@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
+
+/* Background image path, should be available to the user above */
+static const char* background_image = "";
diff --git a/config.mk b/config.mk
index 74429ae..987819e 100644
--- a/config.mk
+++ b/config.mk
@@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib
# includes and libs
INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
diff --git a/slock.c b/slock.c
index 5ae738c..345a279 100644
--- a/slock.c
+++ b/slock.c
@@ -18,6 +18,7 @@
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <Imlib2.h>
#include "arg.h"
#include "util.h"
@@ -35,6 +36,7 @@ struct lock {
int screen;
Window root, win;
Pixmap pmap;
+ Pixmap bgmap;
unsigned long colors[NUMCOLS];
};
@@ -46,6 +48,8 @@ struct xrandr {
#include "config.h"
+Imlib_Image image;
+
static void
die(const char *errstr, ...)
{
@@ -190,9 +194,10 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
if (running && oldc != color) {
for (screen = 0; screen < nscreens; screen++) {
- XSetWindowBackground(dpy,
- locks[screen]->win,
- locks[screen]->colors[color]);
+ if (locks[screen]->bgmap)
+ XSetWindowBackgroundPixmap(dpy, locks[screen]->win, locks[screen]->bgmap);
+ else
+ XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[0]);
XClearWindow(dpy, locks[screen]->win);
}
oldc = color;
@@ -235,6 +240,17 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
lock->screen = screen;
lock->root = RootWindow(dpy, lock->screen);
+ if(image)
+ {
+ lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
+ imlib_context_set_display(dpy);
+ imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
+ imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
+ imlib_context_set_drawable(lock->bgmap);
+ imlib_render_image_on_drawable(0, 0);
+ imlib_free_image();
+ }
+
for (i = 0; i < NUMCOLS; i++) {
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
colorname[i], &color, &dummy);
@@ -251,6 +267,8 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
CopyFromParent,
DefaultVisual(dpy, lock->screen),
CWOverrideRedirect | CWBackPixel, &wa);
+ if(lock->bgmap)
+ XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap);
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
&color, &color, 0, 0);
@@ -355,6 +373,32 @@ main(int argc, char **argv) {
if (setuid(duid) < 0)
die("slock: setuid: %s\n", strerror(errno));
+ /* Load picture */
+ Imlib_Image buffer = imlib_load_image(background_image);
+ imlib_context_set_image(buffer);
+ int background_image_width = imlib_image_get_width();
+ int background_image_height = imlib_image_get_height();
+
+ /* Create an image to be rendered */
+ Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
+ image = imlib_create_image(scr->width, scr->height);
+ imlib_context_set_image(image);
+
+ /* Fill the image for every X monitor */
+ XRRMonitorInfo *monitors;
+ int number_of_monitors;
+ monitors = XRRGetMonitors(dpy, RootWindow(dpy, XScreenNumberOfScreen(scr)), True, &number_of_monitors);
+
+ int i;
+ for (i = 0; i < number_of_monitors; i++) {
+ imlib_blend_image_onto_image(buffer, 0, 0, 0, background_image_width, background_image_height, monitors[i].x, monitors[i].y, monitors[i].width, monitors[i].height);
+ }
+
+ /* Clean up */
+ imlib_context_set_image(buffer);
+ imlib_free_image();
+ imlib_context_set_image(image);
+
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
--
2.35.1

340
patches/slock-foreground-and-background-20210611-35633d4.diff Normal file
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@@ -0,0 +1,340 @@
From 61f4d247d4060f42cbdbf2771061f0e165ada3a9 Mon Sep 17 00:00:00 2001
From: KNIX 3 <nki3@protonmail.com>
Date: Fri, 11 Jun 2021 13:20:54 -0400
Subject: [PATCH] Foreground and Background
---
config.def.h | 28 +++++++++
config.mk | 16 ++++--
slock.c | 156 ++++++++++++++++++++++++++++++++++++++++++++++++---
3 files changed, 187 insertions(+), 13 deletions(-)
diff --git a/config.def.h b/config.def.h
index 9855e21..ceceeb0 100644
--- a/config.def.h
+++ b/config.def.h
@@ -10,3 +10,31 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
+
+/* insert grid pattern with scale 1:1, the size can be changed with logosize */
+static const int logosize = 75;
+/* grid width and height for right center alignment */
+static const int logow = 12;
+static const int logoh = 6;
+
+static XRectangle rectangles[9] = {
+ /* x y w h */
+ { 0, 3, 1, 3 },
+ { 1, 3, 2, 1 },
+ { 0, 5, 8, 1 },
+ { 3, 0, 1, 5 },
+ { 5, 3, 1, 2 },
+ { 7, 3, 1, 2 },
+ { 8, 3, 4, 1 },
+ { 9, 4, 1, 2 },
+ { 11, 4, 1, 2 },
+};
+
+/*Enable blur*/
+#define BLUR
+/*Set blur radius*/
+static const int blurRadius=5;
+/*Enable Pixelation*/
+//#define PIXELATION
+/*Set pixelation radius*/
+static const int pixelSize=0;
diff --git a/config.mk b/config.mk
index 74429ae..e851ede 100644
--- a/config.mk
+++ b/config.mk
@@ -10,13 +10,21 @@ MANPREFIX = ${PREFIX}/share/man
X11INC = /usr/X11R6/include
X11LIB = /usr/X11R6/lib
+# Xinerama
+XINERAMALIBS = -lXinerama
+XINERAMAFLAGS = -DXINERAMA
+
+# freetype
+FREETYPELIBS = -lXft
+FREETYPEINC = /usr/include/freetype2
+
# includes and libs
-INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
+INCS = -I. -I/usr/include -I${X11INC} -I${FREETYPEINC}
+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXext -lXrandr -lImlib2
# flags
-CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
-CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
+CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H ${XINERAMAFLAGS}
+CFLAGS = -std=c99 -pedantic -Wall -Ofast ${INCS} ${CPPFLAGS}
LDFLAGS = -s ${LIBS}
COMPATSRC = explicit_bzero.c
diff --git a/slock.c b/slock.c
index 5ae738c..efbe833 100644
--- a/slock.c
+++ b/slock.c
@@ -1,5 +1,6 @@
/* See LICENSE file for license details. */
-#define _XOPEN_SOURCE 500
+#define _XOPEN_SOURCE 500
+#define LENGTH(X) (sizeof X / sizeof X[0])
#if HAVE_SHADOW_H
#include <shadow.h>
#endif
@@ -15,9 +16,14 @@
#include <unistd.h>
#include <sys/types.h>
#include <X11/extensions/Xrandr.h>
+#ifdef XINERAMA
+#include <X11/extensions/Xinerama.h>
+#endif
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <X11/Xft/Xft.h>
+#include <Imlib2.h>
#include "arg.h"
#include "util.h"
@@ -31,11 +37,19 @@ enum {
NUMCOLS
};
+#include "config.h"
+
struct lock {
int screen;
Window root, win;
Pixmap pmap;
+ Pixmap bgmap;
unsigned long colors[NUMCOLS];
+ unsigned int x, y;
+ unsigned int xoff, yoff, mw, mh;
+ Drawable drawable;
+ GC gc;
+ XRectangle rectangles[LENGTH(rectangles)];
};
struct xrandr {
@@ -44,7 +58,7 @@ struct xrandr {
int errbase;
};
-#include "config.h"
+Imlib_Image image;
static void
die(const char *errstr, ...)
@@ -124,6 +138,34 @@ gethash(void)
return hash;
}
+static void
+resizerectangles(struct lock *lock)
+{
+ int i;
+
+ for (i = 0; i < LENGTH(rectangles); i++){
+ lock->rectangles[i].x = (rectangles[i].x * logosize)
+ + lock->xoff + ((lock->mw) / 2) - (logow / 2 * logosize);
+ lock->rectangles[i].y = (rectangles[i].y * logosize)
+ + lock->yoff + ((lock->mh) / 2) - (logoh / 2 * logosize);
+ lock->rectangles[i].width = rectangles[i].width * logosize;
+ lock->rectangles[i].height = rectangles[i].height * logosize;
+ }
+}
+
+static void
+drawlogo(Display *dpy, struct lock *lock, int color)
+{
+ /*
+ XSetForeground(dpy, lock->gc, lock->colors[BACKGROUND]);
+ XFillRectangle(dpy, lock->drawable, lock->gc, 0, 0, lock->x, lock->y); */
+ lock->drawable = lock->bgmap;
+ XSetForeground(dpy, lock->gc, lock->colors[color]);
+ XFillRectangles(dpy, lock->drawable, lock->gc, lock->rectangles, LENGTH(rectangles));
+ XCopyArea(dpy, lock->drawable, lock->win, lock->gc, 0, 0, lock->x, lock->y, 0, 0);
+ XSync(dpy, False);
+}
+
static void
readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
const char *hash)
@@ -190,10 +232,7 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
if (running && oldc != color) {
for (screen = 0; screen < nscreens; screen++) {
- XSetWindowBackground(dpy,
- locks[screen]->win,
- locks[screen]->colors[color]);
- XClearWindow(dpy, locks[screen]->win);
+ drawlogo(dpy, locks[screen], color);
}
oldc = color;
}
@@ -228,6 +267,10 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
XColor color, dummy;
XSetWindowAttributes wa;
Cursor invisible;
+#ifdef XINERAMA
+ XineramaScreenInfo *info;
+ int n;
+#endif
if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
return NULL;
@@ -235,27 +278,60 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
lock->screen = screen;
lock->root = RootWindow(dpy, lock->screen);
+ if(image)
+ {
+ lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
+ imlib_context_set_image(image);
+ imlib_context_set_display(dpy);
+ imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
+ imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
+ imlib_context_set_drawable(lock->bgmap);
+ imlib_render_image_on_drawable(0, 0);
+ imlib_free_image();
+ }
for (i = 0; i < NUMCOLS; i++) {
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
colorname[i], &color, &dummy);
lock->colors[i] = color.pixel;
}
+ lock->x = DisplayWidth(dpy, lock->screen);
+ lock->y = DisplayHeight(dpy, lock->screen);
+#ifdef XINERAMA
+ if ((info = XineramaQueryScreens(dpy, &n))) {
+ lock->xoff = info[0].x_org;
+ lock->yoff = info[0].y_org;
+ lock->mw = info[0].width;
+ lock->mh = info[0].height;
+ } else
+#endif
+ {
+ lock->xoff = lock->yoff = 0;
+ lock->mw = lock->x;
+ lock->mh = lock->y;
+ }
+ lock->drawable = XCreatePixmap(dpy, lock->root,
+ lock->x, lock->y, DefaultDepth(dpy, screen));
+ lock->gc = XCreateGC(dpy, lock->root, 0, NULL);
+ XSetLineAttributes(dpy, lock->gc, 1, LineSolid, CapButt, JoinMiter);
+
/* init */
wa.override_redirect = 1;
- wa.background_pixel = lock->colors[INIT];
lock->win = XCreateWindow(dpy, lock->root, 0, 0,
- DisplayWidth(dpy, lock->screen),
- DisplayHeight(dpy, lock->screen),
+ lock->x, lock->y,
0, DefaultDepth(dpy, lock->screen),
CopyFromParent,
DefaultVisual(dpy, lock->screen),
CWOverrideRedirect | CWBackPixel, &wa);
+ if(lock->bgmap)
+ XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap);
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
&color, &color, 0, 0);
XDefineCursor(dpy, lock->win, invisible);
+ resizerectangles(lock);
+
/* Try to grab mouse pointer *and* keyboard for 600ms, else fail the lock */
for (i = 0, ptgrab = kbgrab = -1; i < 6; i++) {
if (ptgrab != GrabSuccess) {
@@ -276,6 +352,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
XSelectInput(dpy, lock->root, SubstructureNotifyMask);
+ drawlogo(dpy, lock, INIT);
return lock;
}
@@ -355,6 +432,60 @@ main(int argc, char **argv) {
if (setuid(duid) < 0)
die("slock: setuid: %s\n", strerror(errno));
+ /*Create screenshot Image*/
+ Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
+ image = imlib_create_image(scr->width,scr->height);
+ imlib_context_set_image(image);
+ imlib_context_set_display(dpy);
+ imlib_context_set_visual(DefaultVisual(dpy,0));
+ imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
+ imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
+
+#ifdef BLUR
+
+ /*Blur function*/
+ imlib_image_blur(blurRadius);
+#endif // BLUR
+
+#ifdef PIXELATION
+ /*Pixelation*/
+ int width = scr->width;
+ int height = scr->height;
+
+ for(int y = 0; y < height; y += pixelSize)
+ {
+ for(int x = 0; x < width; x += pixelSize)
+ {
+ int red = 0;
+ int green = 0;
+ int blue = 0;
+
+ Imlib_Color pixel;
+ Imlib_Color* pp;
+ pp = &pixel;
+ for(int j = 0; j < pixelSize && j < height; j++)
+ {
+ for(int i = 0; i < pixelSize && i < width; i++)
+ {
+ imlib_image_query_pixel(x+i,y+j,pp);
+ red += pixel.red;
+ green += pixel.green;
+ blue += pixel.blue;
+ }
+ }
+ red /= (pixelSize*pixelSize);
+ green /= (pixelSize*pixelSize);
+ blue /= (pixelSize*pixelSize);
+ imlib_context_set_color(red,green,blue,pixel.alpha);
+ imlib_image_fill_rectangle(x,y,pixelSize,pixelSize);
+ red = 0;
+ green = 0;
+ blue = 0;
+ }
+ }
+
+
+#endif
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
@@ -391,5 +522,12 @@ main(int argc, char **argv) {
/* everything is now blank. Wait for the correct password */
readpw(dpy, &rr, locks, nscreens, hash);
+ for (nlocks = 0, s = 0; s < nscreens; s++) {
+ XFreePixmap(dpy, locks[s]->drawable);
+ XFreeGC(dpy, locks[s]->gc);
+ }
+
+ XSync(dpy, 0);
+ XCloseDisplay(dpy);
return 0;
}
--
2.31.1

250
patches/slock-message-20191002-b46028b.diff Normal file
View File

@@ -0,0 +1,250 @@
From b46028b2797b886154258dcafe71c349cdc68b43 Mon Sep 17 00:00:00 2001
From: Blair Drummond <blair.robert.drummond@gmail.com>
Date: Wed, 2 Oct 2019 14:59:00 -0400
Subject: [PATCH] Add a message command. Fixes old version's bugs.
---
config.def.h | 9 ++++
config.mk | 2 +-
slock.1 | 7 +++
slock.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++++--
4 files changed, 133 insertions(+), 5 deletions(-)
diff --git a/config.def.h b/config.def.h
index 9855e21..c2a0ab2 100644
--- a/config.def.h
+++ b/config.def.h
@@ -10,3 +10,12 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
+
+/* default message */
+static const char * message = "Suckless: Software that sucks less.";
+
+/* text color */
+static const char * text_color = "#ffffff";
+
+/* text size (must be a valid size) */
+static const char * font_name = "6x10";
diff --git a/config.mk b/config.mk
index 74429ae..c4ccf66 100644
--- a/config.mk
+++ b/config.mk
@@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib
# includes and libs
INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lXinerama
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
diff --git a/slock.1 b/slock.1
index 82cdcd6..946165f 100644
--- a/slock.1
+++ b/slock.1
@@ -6,6 +6,8 @@
.Sh SYNOPSIS
.Nm
.Op Fl v
+.Op Fl f
+.Op Fl m Ar message
.Op Ar cmd Op Ar arg ...
.Sh DESCRIPTION
.Nm
@@ -16,6 +18,11 @@ is executed after the screen has been locked.
.Bl -tag -width Ds
.It Fl v
Print version information to stdout and exit.
+.It Fl f
+List all valid X fonts and exit.
+.It Fl m Ar message
+Overrides default slock lock message.
+.TP
.El
.Sh SECURITY CONSIDERATIONS
To make sure a locked screen can not be bypassed by switching VTs
diff --git a/slock.c b/slock.c
index 5ae738c..610929b 100644
--- a/slock.c
+++ b/slock.c
@@ -15,6 +15,7 @@
#include <unistd.h>
#include <sys/types.h>
#include <X11/extensions/Xrandr.h>
+#include <X11/extensions/Xinerama.h>
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
@@ -24,6 +25,9 @@
char *argv0;
+/* global count to prevent repeated error messages */
+int count_error = 0;
+
enum {
INIT,
INPUT,
@@ -83,6 +87,98 @@ dontkillme(void)
}
#endif
+static void
+writemessage(Display *dpy, Window win, int screen)
+{
+ int len, line_len, width, height, s_width, s_height, i, j, k, tab_replace, tab_size;
+ XGCValues gr_values;
+ XFontStruct *fontinfo;
+ XColor color, dummy;
+ XineramaScreenInfo *xsi;
+ GC gc;
+ fontinfo = XLoadQueryFont(dpy, font_name);
+
+ if (fontinfo == NULL) {
+ if (count_error == 0) {
+ fprintf(stderr, "slock: Unable to load font \"%s\"\n", font_name);
+ fprintf(stderr, "slock: Try listing fonts with 'slock -f'\n");
+ count_error++;
+ }
+ return;
+ }
+
+ tab_size = 8 * XTextWidth(fontinfo, " ", 1);
+
+ XAllocNamedColor(dpy, DefaultColormap(dpy, screen),
+ text_color, &color, &dummy);
+
+ gr_values.font = fontinfo->fid;
+ gr_values.foreground = color.pixel;
+ gc=XCreateGC(dpy,win,GCFont+GCForeground, &gr_values);
+
+ /* To prevent "Uninitialized" warnings. */
+ xsi = NULL;
+
+ /*
+ * Start formatting and drawing text
+ */
+
+ len = strlen(message);
+
+ /* Max max line length (cut at '\n') */
+ line_len = 0;
+ k = 0;
+ for (i = j = 0; i < len; i++) {
+ if (message[i] == '\n') {
+ if (i - j > line_len)
+ line_len = i - j;
+ k++;
+ i++;
+ j = i;
+ }
+ }
+ /* If there is only one line */
+ if (line_len == 0)
+ line_len = len;
+
+ if (XineramaIsActive(dpy)) {
+ xsi = XineramaQueryScreens(dpy, &i);
+ s_width = xsi[0].width;
+ s_height = xsi[0].height;
+ } else {
+ s_width = DisplayWidth(dpy, screen);
+ s_height = DisplayHeight(dpy, screen);
+ }
+
+ height = s_height*3/7 - (k*20)/3;
+ width = (s_width - XTextWidth(fontinfo, message, line_len))/2;
+
+ /* Look for '\n' and print the text between them. */
+ for (i = j = k = 0; i <= len; i++) {
+ /* i == len is the special case for the last line */
+ if (i == len || message[i] == '\n') {
+ tab_replace = 0;
+ while (message[j] == '\t' && j < i) {
+ tab_replace++;
+ j++;
+ }
+
+ XDrawString(dpy, win, gc, width + tab_size*tab_replace, height + 20*k, message + j, i - j);
+ while (i < len && message[i] == '\n') {
+ i++;
+ j = i;
+ k++;
+ }
+ }
+ }
+
+ /* xsi should not be NULL anyway if Xinerama is active, but to be safe */
+ if (XineramaIsActive(dpy) && xsi != NULL)
+ XFree(xsi);
+}
+
+
+
static const char *
gethash(void)
{
@@ -194,6 +290,7 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
locks[screen]->win,
locks[screen]->colors[color]);
XClearWindow(dpy, locks[screen]->win);
+ writemessage(dpy, locks[screen]->win, screen);
}
oldc = color;
}
@@ -300,7 +397,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
static void
usage(void)
{
- die("usage: slock [-v] [cmd [arg ...]]\n");
+ die("usage: slock [-v] [-f] [-m message] [cmd [arg ...]]\n");
}
int
@@ -313,12 +410,25 @@ main(int argc, char **argv) {
gid_t dgid;
const char *hash;
Display *dpy;
- int s, nlocks, nscreens;
+ int i, s, nlocks, nscreens;
+ int count_fonts;
+ char **font_names;
ARGBEGIN {
case 'v':
fprintf(stderr, "slock-"VERSION"\n");
return 0;
+ case 'm':
+ message = EARGF(usage());
+ break;
+ case 'f':
+ if (!(dpy = XOpenDisplay(NULL)))
+ die("slock: cannot open display\n");
+ font_names = XListFonts(dpy, "*", 10000 /* list 10000 fonts*/, &count_fonts);
+ for (i=0; i<count_fonts; i++) {
+ fprintf(stderr, "%s\n", *(font_names+i));
+ }
+ return 0;
default:
usage();
} ARGEND
@@ -363,10 +473,12 @@ main(int argc, char **argv) {
if (!(locks = calloc(nscreens, sizeof(struct lock *))))
die("slock: out of memory\n");
for (nlocks = 0, s = 0; s < nscreens; s++) {
- if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL)
+ if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL) {
+ writemessage(dpy, locks[s]->win, s);
nlocks++;
- else
+ } else {
break;
+ }
}
XSync(dpy, 0);
--
2.20.1

237
patches/slock-message-xft-20210315-ae681c5.patch Normal file
View File

@@ -0,0 +1,237 @@
From ae681c5a52a2b4b257f9432204deedc8b5570e8d Mon Sep 17 00:00:00 2001
From: Nathaniel Evan <nathanielevan@zohomail.com>
Date: Mon, 15 Mar 2021 05:50:20 +0700
Subject: [PATCH] Updates message patch with Xft font support
---
config.def.h | 9 +++++
config.mk | 4 +-
slock.1 | 4 ++
slock.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++++--
4 files changed, 122 insertions(+), 5 deletions(-)
diff --git a/config.def.h b/config.def.h
index 9855e21..2c83077 100644
--- a/config.def.h
+++ b/config.def.h
@@ -10,3 +10,12 @@ static const char *colorname[NUMCOLS] = {
/* treat a cleared input like a wrong password (color) */
static const int failonclear = 1;
+
+/* default message */
+static const char * message = "Suckless: Software that sucks less.";
+
+/* text color */
+static const char * text_color = "#ffffff";
+
+/* text size (must be a valid size) */
+static const char * font_name = "sans-serif:size:pixelsize=24:antialias=true:autohint=true";
diff --git a/config.mk b/config.mk
index 74429ae..69ef27a 100644
--- a/config.mk
+++ b/config.mk
@@ -11,8 +11,8 @@ X11INC = /usr/X11R6/include
X11LIB = /usr/X11R6/lib
# includes and libs
-INCS = -I. -I/usr/include -I${X11INC}
-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
+INCS = -I. -I/usr/include -I${X11INC} -I/usr/include/freetype2
+LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lXinerama -lXft
# flags
CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
diff --git a/slock.1 b/slock.1
index 82cdcd6..541a264 100644
--- a/slock.1
+++ b/slock.1
@@ -6,6 +6,7 @@
.Sh SYNOPSIS
.Nm
.Op Fl v
+.Op Fl m Ar message
.Op Ar cmd Op Ar arg ...
.Sh DESCRIPTION
.Nm
@@ -16,6 +17,9 @@ is executed after the screen has been locked.
.Bl -tag -width Ds
.It Fl v
Print version information to stdout and exit.
+.It Fl m Ar message
+Overrides default slock lock message.
+.TP
.El
.Sh SECURITY CONSIDERATIONS
To make sure a locked screen can not be bypassed by switching VTs
diff --git a/slock.c b/slock.c
index 5ae738c..ef569f8 100644
--- a/slock.c
+++ b/slock.c
@@ -14,16 +14,22 @@
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
+#include <fontconfig/fontconfig.h>
#include <X11/extensions/Xrandr.h>
+#include <X11/extensions/Xinerama.h>
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <X11/Xft/Xft.h>
#include "arg.h"
#include "util.h"
char *argv0;
+/* global count to prevent repeated error messages */
+int count_error = 0;
+
enum {
INIT,
INPUT,
@@ -83,6 +89,98 @@ dontkillme(void)
}
#endif
+static void
+writemessage(Display *dpy, Window win, int screen)
+{
+ int len, line_len, width, height, s_width, s_height, i, j, k, tab_replace, tab_size;
+ XftFont *fontinfo;
+ XftColor xftcolor;
+ XftDraw *xftdraw;
+ XGlyphInfo ext_msg, ext_space;
+ XineramaScreenInfo *xsi;
+ xftdraw = XftDrawCreate(dpy, win, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen));
+ fontinfo = XftFontOpenName(dpy, screen, font_name);
+ XftColorAllocName(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), text_color, &xftcolor);
+
+ if (fontinfo == NULL) {
+ if (count_error == 0) {
+ fprintf(stderr, "slock: Unable to load font \"%s\"\n", font_name);
+ count_error++;
+ }
+ return;
+ }
+
+ XftTextExtentsUtf8(dpy, fontinfo, (XftChar8 *) " ", 1, &ext_space);
+ tab_size = 8 * ext_space.width;
+
+ /* To prevent "Uninitialized" warnings. */
+ xsi = NULL;
+
+ /*
+ * Start formatting and drawing text
+ */
+
+ len = strlen(message);
+
+ /* Max max line length (cut at '\n') */
+ line_len = 0;
+ k = 0;
+ for (i = j = 0; i < len; i++) {
+ if (message[i] == '\n') {
+ if (i - j > line_len)
+ line_len = i - j;
+ k++;
+ i++;
+ j = i;
+ }
+ }
+ /* If there is only one line */
+ if (line_len == 0)
+ line_len = len;
+
+ if (XineramaIsActive(dpy)) {
+ xsi = XineramaQueryScreens(dpy, &i);
+ s_width = xsi[0].width;
+ s_height = xsi[0].height;
+ } else {
+ s_width = DisplayWidth(dpy, screen);
+ s_height = DisplayHeight(dpy, screen);
+ }
+
+ XftTextExtentsUtf8(dpy, fontinfo, (XftChar8 *)message, line_len, &ext_msg);
+ height = s_height*3/7 - (k*20)/3;
+ width = (s_width - ext_msg.width)/2;
+
+ /* Look for '\n' and print the text between them. */
+ for (i = j = k = 0; i <= len; i++) {
+ /* i == len is the special case for the last line */
+ if (i == len || message[i] == '\n') {
+ tab_replace = 0;
+ while (message[j] == '\t' && j < i) {
+ tab_replace++;
+ j++;
+ }
+
+ XftDrawStringUtf8(xftdraw, &xftcolor, fontinfo, width + tab_size*tab_replace, height + 20*k, (XftChar8 *)(message + j), i - j);
+ while (i < len && message[i] == '\n') {
+ i++;
+ j = i;
+ k++;
+ }
+ }
+ }
+
+ /* xsi should not be NULL anyway if Xinerama is active, but to be safe */
+ if (XineramaIsActive(dpy) && xsi != NULL)
+ XFree(xsi);
+
+ XftFontClose(dpy, fontinfo);
+ XftColorFree(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), &xftcolor);
+ XftDrawDestroy(xftdraw);
+}
+
+
+
static const char *
gethash(void)
{
@@ -194,6 +292,7 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
locks[screen]->win,
locks[screen]->colors[color]);
XClearWindow(dpy, locks[screen]->win);
+ writemessage(dpy, locks[screen]->win, screen);
}
oldc = color;
}
@@ -300,7 +399,7 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen)
static void
usage(void)
{
- die("usage: slock [-v] [cmd [arg ...]]\n");
+ die("usage: slock [-v] [-m message] [cmd [arg ...]]\n");
}
int
@@ -319,6 +418,9 @@ main(int argc, char **argv) {
case 'v':
fprintf(stderr, "slock-"VERSION"\n");
return 0;
+ case 'm':
+ message = EARGF(usage());
+ break;
default:
usage();
} ARGEND
@@ -363,10 +465,12 @@ main(int argc, char **argv) {
if (!(locks = calloc(nscreens, sizeof(struct lock *))))
die("slock: out of memory\n");
for (nlocks = 0, s = 0; s < nscreens; s++) {
- if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL)
+ if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL) {
+ writemessage(dpy, locks[s]->win, s);
nlocks++;
- else
+ } else {
break;
+ }
}
XSync(dpy, 0);
--
2.30.1

40
patches/slock-terminalkeys-1.4.diff Normal file
View File

@@ -0,0 +1,40 @@
From 4b6b51100fa14256753f663c93daeb0f89f0a65a Mon Sep 17 00:00:00 2001
From: Matthias Schoth <mschoth@gmail.com>
Date: Fri, 15 May 2020 22:10:27 +0200
Subject: [PATCH] Add key commands that are commonly used in terminal
applications to slock.
---
slock.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/slock.c b/slock.c
index d2f0886..bf1a392 100644
--- a/slock.c
+++ b/slock.c
@@ -156,6 +156,22 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
IsPFKey(ksym) ||
IsPrivateKeypadKey(ksym))
continue;
+ if (ev.xkey.state & ControlMask) {
+ switch (ksym) {
+ case XK_u:
+ ksym = XK_Escape;
+ break;
+ case XK_m:
+ ksym = XK_Return;
+ break;
+ case XK_j:
+ ksym = XK_Return;
+ break;
+ case XK_h:
+ ksym = XK_BackSpace;
+ break;
+ }
+ }
switch (ksym) {
case XK_Return:
passwd[len] = '\0';
--
2.26.2

BIN
slock Executable file
View File

Binary file not shown.

52
slock.1 Normal file
View File

@@ -0,0 +1,52 @@
.Dd October 6, 2023
.Dt SLOCK 1
.Os
.Sh NAME
.Nm slock
.Nd simple X screen locker
.Sh SYNOPSIS
.Nm
.Op Fl v
.Op Fl f
.Op Fl m Ar message
.Op Ar cmd Op Ar arg ...
.Sh DESCRIPTION
.Nm
is a simple X screen locker.
If provided,
.Ar cmd
is executed after the screen has been locked.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl v
Print version information to stdout and exit.
.It Fl f
List all valid X fonts and exit.
.It Fl m Ar message
Overrides default slock lock message.
.TP
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
$
.Nm
/usr/sbin/s2ram
.Sh SECURITY CONSIDERATIONS
To make sure a locked screen can not be bypassed by switching VTs
or killing the X server with Ctrl+Alt+Backspace, it is recommended
to disable both in
.Xr xorg.conf 5
for maximum security:
.Bd -literal
Section "ServerFlags"
Option "DontVTSwitch" "True"
Option "DontZap" "True"
EndSection
.Ed
.Sh CUSTOMIZATION
.Nm
can be customized by creating a custom config.h from config.def.h and
(re)compiling the source code.
This keeps it fast, secure and simple.

660
slock.c Normal file
View File

@@ -0,0 +1,660 @@
/* See LICENSE file for license details. */
#define _XOPEN_SOURCE 500
#define LENGTH(X) (sizeof X / sizeof X[0])
#if HAVE_SHADOW_H
#include <shadow.h>
#endif
#include <ctype.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <X11/extensions/Xrandr.h>
#include <X11/extensions/Xinerama.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#include <X11/keysym.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xft/Xft.h>
#include <Imlib2.h>
#include "arg.h"
#include "util.h"
char *argv0;
/* global count to prevent repeated error messages */
int count_error = 0;
enum {
INIT,
INPUT,
FAILED,
NUMCOLS
};
#include "config.h"
struct lock {
int screen;
Window root, win;
Pixmap pmap;
Pixmap bgmap;
unsigned long colors[NUMCOLS];
unsigned int x, y;
unsigned int xoff, yoff, mw, mh;
Drawable drawable;
GC gc;
XRectangle rectangles[LENGTH(rectangles)];
};
struct xrandr {
int active;
int evbase;
int errbase;
};
Imlib_Image image;
static void
die(const char *errstr, ...)
{
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(1);
}
#ifdef __linux__
#include <fcntl.h>
#include <linux/oom.h>
static void
dontkillme(void)
{
FILE *f;
const char oomfile[] = "/proc/self/oom_score_adj";
if (!(f = fopen(oomfile, "w"))) {
if (errno == ENOENT)
return;
die("slock: fopen %s: %s\n", oomfile, strerror(errno));
}
fprintf(f, "%d", OOM_SCORE_ADJ_MIN);
if (fclose(f)) {
if (errno == EACCES)
die("slock: unable to disable OOM killer. "
"Make sure to suid or sgid slock.\n");
else
die("slock: fclose %s: %s\n", oomfile, strerror(errno));
}
}
#endif
static void
writemessage(Display *dpy, Window win, int screen)
{
int len, line_len, width, height, s_width, s_height, i, j, k, tab_replace, tab_size;
XftFont *fontinfo;
XftColor xftcolor;
XftDraw *xftdraw;
XGlyphInfo ext_msg, ext_space;
XineramaScreenInfo *xsi;
xftdraw = XftDrawCreate(dpy, win, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen));
fontinfo = XftFontOpenName(dpy, screen, font_name);
XftColorAllocName(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), text_color, &xftcolor);
if (fontinfo == NULL) {
if (count_error == 0) {
fprintf(stderr, "slock: Unable to load font \"%s\"\n", font_name);
count_error++;
}
return;
}
XftTextExtentsUtf8(dpy, fontinfo, (XftChar8 *) " ", 1, &ext_space);
tab_size = 8 * ext_space.width;
/* To prevent "Uninitialized" warnings. */
xsi = NULL;
/*
* Start formatting and drawing text
*/
len = strlen(message);
/* Max max line length (cut at '\n') */
line_len = 0;
k = 0;
for (i = j = 0; i < len; i++) {
if (message[i] == '\n') {
if (i - j > line_len)
line_len = i - j;
k++;
i++;
j = i;
}
}
/* If there is only one line */
if (line_len == 0)
line_len = len;
if (XineramaIsActive(dpy)) {
xsi = XineramaQueryScreens(dpy, &i);
s_width = xsi[0].width;
s_height = xsi[0].height;
} else {
s_width = DisplayWidth(dpy, screen);
s_height = DisplayHeight(dpy, screen);
}
XftTextExtentsUtf8(dpy, fontinfo, (XftChar8 *)message, line_len, &ext_msg);
height = s_height*3/7 - (k*20)/3;
width = (s_width - ext_msg.width)/2;
/* Look for '\n' and print the text between them. */
for (i = j = k = 0; i <= len; i++) {
/* i == len is the special case for the last line */
if (i == len || message[i] == '\n') {
tab_replace = 0;
while (message[j] == '\t' && j < i) {
tab_replace++;
j++;
}
XftDrawStringUtf8(xftdraw, &xftcolor, fontinfo, width + tab_size*tab_replace, height + 20*k, (XftChar8 *)(message + j), i - j);
while (i < len && message[i] == '\n') {
i++;
j = i;
k++;
}
}
}
/* xsi should not be NULL anyway if Xinerama is active, but to be safe */
if (XineramaIsActive(dpy) && xsi != NULL)
XFree(xsi);
XftFontClose(dpy, fontinfo);
XftColorFree(dpy, DefaultVisual(dpy, screen), DefaultColormap(dpy, screen), &xftcolor);
XftDrawDestroy(xftdraw);
}
static const char *
gethash(void)
{
const char *hash;
struct passwd *pw;
/* Check if the current user has a password entry */
errno = 0;
if (!(pw = getpwuid(getuid()))) {
if (errno)
die("slock: getpwuid: %s\n", strerror(errno));
else
die("slock: cannot retrieve password entry\n");
}
hash = pw->pw_passwd;
#if HAVE_SHADOW_H
if (!strcmp(hash, "x")) {
struct spwd *sp;
if (!(sp = getspnam(pw->pw_name)))
die("slock: getspnam: cannot retrieve shadow entry. "
"Make sure to suid or sgid slock.\n");
hash = sp->sp_pwdp;
}
#else
if (!strcmp(hash, "*")) {
#ifdef __OpenBSD__
if (!(pw = getpwuid_shadow(getuid())))
die("slock: getpwnam_shadow: cannot retrieve shadow entry. "
"Make sure to suid or sgid slock.\n");
hash = pw->pw_passwd;
#else
die("slock: getpwuid: cannot retrieve shadow entry. "
"Make sure to suid or sgid slock.\n");
#endif /* __OpenBSD__ */
}
#endif /* HAVE_SHADOW_H */
return hash;
}
static void
resizerectangles(struct lock *lock)
{
int i;
for (i = 0; i < LENGTH(rectangles); i++){
lock->rectangles[i].x = (rectangles[i].x * logosize)
+ lock->xoff + ((lock->mw) / 2) - (logow / 2 * logosize);
lock->rectangles[i].y = (rectangles[i].y * logosize)
+ lock->yoff + ((lock->mh) / 2) - (logoh / 2 * logosize);
lock->rectangles[i].width = rectangles[i].width * logosize;
lock->rectangles[i].height = rectangles[i].height * logosize;
}
}
static void
drawlogo(Display *dpy, struct lock *lock, int color)
{
/*
XSetForeground(dpy, lock->gc, lock->colors[BACKGROUND]);
XFillRectangle(dpy, lock->drawable, lock->gc, 0, 0, lock->x, lock->y); */
lock->drawable = lock->bgmap;
XSetForeground(dpy, lock->gc, lock->colors[color]);
XFillRectangles(dpy, lock->drawable, lock->gc, lock->rectangles, LENGTH(rectangles));
XCopyArea(dpy, lock->drawable, lock->win, lock->gc, 0, 0, lock->x, lock->y, 0, 0);
XSync(dpy, False);
}
static void
readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
const char *hash)
{
XRRScreenChangeNotifyEvent *rre;
char buf[32], passwd[256], *inputhash;
int num, screen, running, failure, oldc;
unsigned int len, color;
KeySym ksym;
XEvent ev;
len = 0;
running = 1;
failure = 0;
oldc = INIT;
while (running && !XNextEvent(dpy, &ev)) {
if (ev.type == KeyPress) {
explicit_bzero(&buf, sizeof(buf));
num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0);
if (IsKeypadKey(ksym)) {
if (ksym == XK_KP_Enter)
ksym = XK_Return;
else if (ksym >= XK_KP_0 && ksym <= XK_KP_9)
ksym = (ksym - XK_KP_0) + XK_0;
}
if (IsFunctionKey(ksym) ||
IsKeypadKey(ksym) ||
IsMiscFunctionKey(ksym) ||
IsPFKey(ksym) ||
IsPrivateKeypadKey(ksym))
continue;
if (ev.xkey.state & ControlMask) {
switch (ksym) {
case XK_u:
ksym = XK_Escape;
break;
case XK_m:
ksym = XK_Return;
break;
case XK_j:
ksym = XK_Return;
break;
case XK_h:
ksym = XK_BackSpace;
break;
}
}
switch (ksym) {
case XK_Return:
passwd[len] = '\0';
errno = 0;
if (!(inputhash = crypt(passwd, hash)))
fprintf(stderr, "slock: crypt: %s\n", strerror(errno));
else
running = !!strcmp(inputhash, hash);
if (running) {
XBell(dpy, 100);
failure = 1;
}
explicit_bzero(&passwd, sizeof(passwd));
len = 0;
break;
case XK_Escape:
explicit_bzero(&passwd, sizeof(passwd));
len = 0;
break;
case XK_BackSpace:
if (len)
passwd[--len] = '\0';
break;
default:
if (num && !iscntrl((int)buf[0]) &&
(len + num < sizeof(passwd))) {
memcpy(passwd + len, buf, num);
len += num;
}
break;
}
color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
if (running && oldc != color) {
for (screen = 0; screen < nscreens; screen++) {
drawlogo(dpy, locks[screen], color);
}
oldc = color;
}
} else if (rr->active && ev.type == rr->evbase + RRScreenChangeNotify) {
rre = (XRRScreenChangeNotifyEvent*)&ev;
for (screen = 0; screen < nscreens; screen++) {
if (locks[screen]->win == rre->window) {
if (rre->rotation == RR_Rotate_90 ||
rre->rotation == RR_Rotate_270)
XResizeWindow(dpy, locks[screen]->win,
rre->height, rre->width);
else
XResizeWindow(dpy, locks[screen]->win,
rre->width, rre->height);
XClearWindow(dpy, locks[screen]->win);
break;
}
}
} else {
for (screen = 0; screen < nscreens; screen++)
XRaiseWindow(dpy, locks[screen]->win);
}
}
}
static struct lock *
lockscreen(Display *dpy, struct xrandr *rr, int screen)
{
char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
int i, ptgrab, kbgrab;
struct lock *lock;
XColor color, dummy;
XSetWindowAttributes wa;
Cursor invisible;
#ifdef XINERAMA
XineramaScreenInfo *info;
int n;
#endif
if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
return NULL;
lock->screen = screen;
lock->root = RootWindow(dpy, lock->screen);
if(image)
{
lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen));
imlib_context_set_image(image);
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisual(dpy, lock->screen));
imlib_context_set_colormap(DefaultColormap(dpy, lock->screen));
imlib_context_set_drawable(lock->bgmap);
imlib_render_image_on_drawable(0, 0);
imlib_free_image();
}
for (i = 0; i < NUMCOLS; i++) {
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
colorname[i], &color, &dummy);
lock->colors[i] = color.pixel;
}
lock->x = DisplayWidth(dpy, lock->screen);
lock->y = DisplayHeight(dpy, lock->screen);
#ifdef XINERAMA
if ((info = XineramaQueryScreens(dpy, &n))) {
lock->xoff = info[0].x_org;
lock->yoff = info[0].y_org;
lock->mw = info[0].width;
lock->mh = info[0].height;
} else
#endif
{
lock->xoff = lock->yoff = 0;
lock->mw = lock->x;
lock->mh = lock->y;
}
lock->drawable = XCreatePixmap(dpy, lock->root,
lock->x, lock->y, DefaultDepth(dpy, screen));
lock->gc = XCreateGC(dpy, lock->root, 0, NULL);
XSetLineAttributes(dpy, lock->gc, 1, LineSolid, CapButt, JoinMiter);
/* init */
wa.override_redirect = 1;
lock->win = XCreateWindow(dpy, lock->root, 0, 0,
lock->x, lock->y,
0, DefaultDepth(dpy, lock->screen),
CopyFromParent,
DefaultVisual(dpy, lock->screen),
CWOverrideRedirect | CWBackPixel, &wa);
// if(lock->bgmap)
XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap);
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
&color, &color, 0, 0);
XDefineCursor(dpy, lock->win, invisible);
resizerectangles(lock);
/* Try to grab mouse pointer *and* keyboard for 600ms, else fail the lock */
for (i = 0, ptgrab = kbgrab = -1; i < 6; i++) {
if (ptgrab != GrabSuccess) {
ptgrab = XGrabPointer(dpy, lock->root, False,
ButtonPressMask | ButtonReleaseMask |
PointerMotionMask, GrabModeAsync,
GrabModeAsync, None, invisible, CurrentTime);
}
if (kbgrab != GrabSuccess) {
kbgrab = XGrabKeyboard(dpy, lock->root, True,
GrabModeAsync, GrabModeAsync, CurrentTime);
}
/* input is grabbed: we can lock the screen */
if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
XMapRaised(dpy, lock->win);
if (rr->active)
XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
XSelectInput(dpy, lock->root, SubstructureNotifyMask);
drawlogo(dpy, lock, INIT);
return lock;
}
/* retry on AlreadyGrabbed but fail on other errors */
if ((ptgrab != AlreadyGrabbed && ptgrab != GrabSuccess) ||
(kbgrab != AlreadyGrabbed && kbgrab != GrabSuccess))
break;
usleep(100000);
}
/* we couldn't grab all input: fail out */
if (ptgrab != GrabSuccess)
fprintf(stderr, "slock: unable to grab mouse pointer for screen %d\n",
screen);
if (kbgrab != GrabSuccess)
fprintf(stderr, "slock: unable to grab keyboard for screen %d\n",
screen);
return NULL;
}
static void
usage(void)
{
die("usage: slock [-v] [-f] [-m message] [cmd [arg ...]]\n");
}
int
main(int argc, char **argv) {
struct xrandr rr;
struct lock **locks;
struct passwd *pwd;
struct group *grp;
uid_t duid;
gid_t dgid;
const char *hash;
Display *dpy;
int i, s, nlocks, nscreens;
int count_fonts;
char **font_names;
ARGBEGIN {
case 'v':
puts("slock-"VERSION);
return 0;
case 'm':
message = EARGF(usage());
break;
case 'f':
if (!(dpy = XOpenDisplay(NULL)))
die("slock: cannot open display\n");
font_names = XListFonts(dpy, "*", 10000 /* list 10000 fonts*/, &count_fonts);
for (i=0; i<count_fonts; i++) {
fprintf(stderr, "%s\n", *(font_names+i));
}
return 0;
default:
usage();
} ARGEND
/* validate drop-user and -group */
errno = 0;
if (!(pwd = getpwnam(user)))
die("slock: getpwnam %s: %s\n", user,
errno ? strerror(errno) : "user entry not found");
duid = pwd->pw_uid;
errno = 0;
if (!(grp = getgrnam(group)))
die("slock: getgrnam %s: %s\n", group,
errno ? strerror(errno) : "group entry not found");
dgid = grp->gr_gid;
#ifdef __linux__
dontkillme();
#endif
hash = gethash();
errno = 0;
if (!crypt("", hash))
die("slock: crypt: %s\n", strerror(errno));
if (!(dpy = XOpenDisplay(NULL)))
die("slock: cannot open display\n");
/* drop privileges */
if (setgroups(0, NULL) < 0)
die("slock: setgroups: %s\n", strerror(errno));
if (setgid(dgid) < 0)
die("slock: setgid: %s\n", strerror(errno));
if (setuid(duid) < 0)
die("slock: setuid: %s\n", strerror(errno));
/*Create screenshot Image*/
Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy));
image = imlib_create_image(scr->width,scr->height);
imlib_context_set_image(image);
imlib_context_set_display(dpy);
imlib_context_set_visual(DefaultVisual(dpy,0));
imlib_context_set_drawable(RootWindow(dpy,XScreenNumberOfScreen(scr)));
imlib_copy_drawable_to_image(0,0,0,scr->width,scr->height,0,0,1);
#ifdef BLUR
/*Blur function*/
imlib_image_blur(blurRadius);
#endif // BLUR
#ifdef PIXELATION
/*Pixelation*/
int width = scr->width;
int height = scr->height;
for(int y = 0; y < height; y += pixelSize)
{
for(int x = 0; x < width; x += pixelSize)
{
int red = 0;
int green = 0;
int blue = 0;
Imlib_Color pixel;
Imlib_Color* pp;
pp = &pixel;
for(int j = 0; j < pixelSize && j < height; j++)
{
for(int i = 0; i < pixelSize && i < width; i++)
{
imlib_image_query_pixel(x+i,y+j,pp);
red += pixel.red;
green += pixel.green;
blue += pixel.blue;
}
}
red /= (pixelSize*pixelSize);
green /= (pixelSize*pixelSize);
blue /= (pixelSize*pixelSize);
imlib_context_set_color(red,green,blue,pixel.alpha);
imlib_image_fill_rectangle(x,y,pixelSize,pixelSize);
red = 0;
green = 0;
blue = 0;
}
}
#endif
/* check for Xrandr support */
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
/* get number of screens in display "dpy" and blank them */
nscreens = ScreenCount(dpy);
if (!(locks = calloc(nscreens, sizeof(struct lock *))))
die("slock: out of memory\n");
for (nlocks = 0, s = 0; s < nscreens; s++) {
if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL) {
writemessage(dpy, locks[s]->win, s);
nlocks++;
} else {
break;
}
}
XSync(dpy, 0);
/* did we manage to lock everything? */
if (nlocks != nscreens)
return 1;
/* run post-lock command */
if (argc > 0) {
switch (fork()) {
case -1:
die("slock: fork failed: %s\n", strerror(errno));
case 0:
if (close(ConnectionNumber(dpy)) < 0)
die("slock: close: %s\n", strerror(errno));
execvp(argv[0], argv);
fprintf(stderr, "slock: execvp %s: %s\n", argv[0], strerror(errno));
_exit(1);
}
}
/* everything is now blank. Wait for the correct password */
readpw(dpy, &rr, locks, nscreens, hash);
for (nlocks = 0, s = 0; s < nscreens; s++) {
XFreePixmap(dpy, locks[s]->drawable);
XFreeGC(dpy, locks[s]->gc);
}
XSync(dpy, 0);
XCloseDisplay(dpy);
return 0;
}

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#undef explicit_bzero
void explicit_bzero(void *, size_t);