slock

Mahdi's build of slock
git clone git://mahdi.pw/slock.git
Log | Files | Refs | README | LICENSE

commit d1914793c31709c280b114bc8f0ee1c41e09aae1
Author: MahdiMirzade <me@mahdym.ir>
Date:   Mon, 14 Mar 2022 20:30:15 +0330

add files

Diffstat:
ALICENSE | 24++++++++++++++++++++++++
AMakefile | 61+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AREADME | 24++++++++++++++++++++++++
Aarg.h | 65+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aconfig.def.h | 73+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aconfig.mk | 40++++++++++++++++++++++++++++++++++++++++
Aexplicit_bzero.c | 19+++++++++++++++++++
Apatches/slock-dpms-1.4.diff | 62++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Apatches/slock-failure-command-1.4.diff | 39+++++++++++++++++++++++++++++++++++++++
Apatches/slock-foreground-and-background-20210611-35633d4.diff | 340+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Apatches/slock-message-xft-20210315-ae681c5.patch | 237+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Apatches/slock-xresources-20191126-53e56c7.diff | 159+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Aslock.1 | 39+++++++++++++++++++++++++++++++++++++++
Aslock.c | 627+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Autil.h | 5+++++
15 files changed, 1814 insertions(+), 0 deletions(-)

diff --git a/LICENSE b/LICENSE @@ -0,0 +1,24 @@ +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> + +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. diff --git a/Makefile b/Makefile @@ -0,0 +1,61 @@ +# slock - simple screen locker +# See LICENSE file for copyright and license details. + +include config.mk + +SRC = slock.c ${COMPATSRC} +OBJ = ${SRC:.c=.o} + +all: options slock + +options: + @echo slock build options: + @echo "CFLAGS = ${CFLAGS}" + @echo "LDFLAGS = ${LDFLAGS}" + @echo "CC = ${CC}" + +.c.o: + @echo CC $< + @${CC} -c ${CFLAGS} $< + +${OBJ}: config.h config.mk arg.h util.h + +config.h: + @echo creating $@ from config.def.h + @cp config.def.h $@ + +slock: ${OBJ} + @echo CC -o $@ + @${CC} -o $@ ${OBJ} ${LDFLAGS} + +clean: + @echo cleaning + @rm -f slock ${OBJ} slock-${VERSION}.tar.gz + +dist: clean + @echo creating dist tarball + @mkdir -p slock-${VERSION} + @cp -R LICENSE Makefile README slock.1 config.mk \ + ${SRC} explicit_bzero.c config.def.h arg.h util.h slock-${VERSION} + @tar -cf slock-${VERSION}.tar slock-${VERSION} + @gzip slock-${VERSION}.tar + @rm -rf slock-${VERSION} + +install: all + @echo installing executable file to ${DESTDIR}${PREFIX}/bin + @mkdir -p ${DESTDIR}${PREFIX}/bin + @cp -f slock ${DESTDIR}${PREFIX}/bin + @chmod 755 ${DESTDIR}${PREFIX}/bin/slock + @chmod u+s ${DESTDIR}${PREFIX}/bin/slock + @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1 + @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: + @echo removing executable file from ${DESTDIR}${PREFIX}/bin + @rm -f ${DESTDIR}${PREFIX}/bin/slock + @echo removing manual page from ${DESTDIR}${MANPREFIX}/man1 + @rm -f ${DESTDIR}${MANPREFIX}/man1/slock.1 + +.PHONY: all options clean dist install uninstall diff --git a/README b/README @@ -0,0 +1,24 @@ +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. diff --git a/arg.h b/arg.h @@ -0,0 +1,65 @@ +/* + * 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 diff --git a/config.def.h b/config.def.h @@ -0,0 +1,73 @@ +/* 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 */ +}; + +/* + * Xresources preferences to load at startup + */ +ResourcePref resources[] = { + { "color0", STRING, &colorname[INIT] }, + { "color4", STRING, &colorname[INPUT] }, + { "color1", STRING, &colorname[FAILED] }, +}; + + +/* treat a cleared input like a wrong password (color) */ +static const int failonclear = 1; + +/* number of failed password attempts until failcommand is executed. + Set to 0 to disable */ +static const int failcount = 3; + +/* command to be executed after [failcount] failed password attempts */ +static const char *failcommand = "ffmpeg -y -loglevel quiet -f v4l2 -i /dev/video0 -frames:v 1 -f image2 /home/mahdy/slock-%Y-%m-%d-%H%M%S.jpg"; + +/* time in seconds before the monitor shuts down */ +static const int monitortime = 60; + +/* insert grid pattern with scale 1:1, the size can be changed with logosize */ +static const int logosize = 80; +static const int logow = 6; /* grid width and height for right center alignment*/ +static const int logoh = 6; +//static const int logow = 13; +//static const int logoh = 6; + +static XRectangle rectangles[5] = { + /* x y w h */ + { 0, 0, 1, 5 }, + { 1, 1, 1, 1 }, + { 2, 2, 1, 1 }, + { 3, 1, 1, 1 }, + { 4, 0, 1, 5 }, +}; +//static XRectangle rectangles[15] = { +// /* x y w h */ +// { 0, 0, 1, 5 }, +// { 1, 1, 1, 1 }, +// { 2, 2, 1, 1 }, +// { 3, 1, 1, 1 }, +// { 4, 0, 1, 5 }, +// { 6, 1, 1, 1 }, +// { 6, 3, 1, 2 }, +// { 8, 0, 1, 5 }, +// { 9, 0, 1, 1 }, +// { 9, 2, 1, 1 }, +// { 10, 1, 1, 1 }, +// { 10, 3, 1, 1 }, +// { 11, 4, 1, 1 }, +//}; + +/*Enable blur*/ +#define BLUR +/*Set blur radius*/ +static const int blurRadius=15; +/*Enable Pixelation*/ +//#define PIXELATION +/*Set pixelation radius*/ +static const int pixelSize=0; diff --git a/config.mk b/config.mk @@ -0,0 +1,40 @@ +# slock version +VERSION = 1.4 + +# 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 = + +# compiler and linker +CC = cc diff --git a/explicit_bzero.c b/explicit_bzero.c @@ -0,0 +1,19 @@ +/* $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); +} diff --git a/patches/slock-dpms-1.4.diff b/patches/slock-dpms-1.4.diff @@ -0,0 +1,62 @@ +diff --git a/config.def.h b/config.def.h +index 9855e21..d01bd38 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = { + + /* treat a cleared input like a wrong password (color) */ + static const int failonclear = 1; ++ ++/* time in seconds before the monitor shuts down */ ++static const int monitortime = 5; +diff --git a/slock.c b/slock.c +index d2f0886..f65a43b 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/dpms.h> + #include <X11/keysym.h> + #include <X11/Xlib.h> + #include <X11/Xutil.h> +@@ -306,6 +307,7 @@ main(int argc, char **argv) { + const char *hash; + Display *dpy; + int s, nlocks, nscreens; ++ CARD16 standby, suspend, off; + + ARGBEGIN { + case 'v': +@@ -366,6 +368,20 @@ main(int argc, char **argv) { + if (nlocks != nscreens) + return 1; + ++ /* DPMS magic to disable the monitor */ ++ if (!DPMSCapable(dpy)) ++ die("slock: DPMSCapable failed\n"); ++ if (!DPMSEnable(dpy)) ++ die("slock: DPMSEnable failed\n"); ++ if (!DPMSGetTimeouts(dpy, &standby, &suspend, &off)) ++ die("slock: DPMSGetTimeouts failed\n"); ++ if (!standby || !suspend || !off) ++ die("slock: at least one DPMS variable is zero\n"); ++ if (!DPMSSetTimeouts(dpy, monitortime, monitortime, monitortime)) ++ die("slock: DPMSSetTimeouts failed\n"); ++ ++ XSync(dpy, 0); ++ + /* run post-lock command */ + if (argc > 0) { + switch (fork()) { +@@ -383,5 +399,9 @@ main(int argc, char **argv) { + /* everything is now blank. Wait for the correct password */ + readpw(dpy, &rr, locks, nscreens, hash); + ++ /* reset DPMS values to inital ones */ ++ DPMSSetTimeouts(dpy, standby, suspend, off); ++ XSync(dpy, 0); ++ + return 0; + } diff --git a/patches/slock-failure-command-1.4.diff b/patches/slock-failure-command-1.4.diff @@ -0,0 +1,39 @@ +diff --git a/config.def.h b/config.def.h +index 9855e21..4c7b0d9 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -10,3 +10,10 @@ static const char *colorname[NUMCOLS] = { + + /* treat a cleared input like a wrong password (color) */ + static const int failonclear = 1; ++ ++/* number of failed password attempts until failcommand is executed. ++ Set to 0 to disable */ ++static const int failcount = 0; ++ ++/* command to be executed after [failcount] failed password attempts */ ++static const char *failcommand = "shutdown"; +diff --git a/slock.c b/slock.c +index d2f0886..53c567f 100644 +--- a/slock.c ++++ b/slock.c +@@ -23,6 +23,7 @@ + #include "util.h" + + char *argv0; ++int failtrack = 0; + + enum { + INIT, +@@ -167,6 +168,11 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens, + if (running) { + XBell(dpy, 100); + failure = 1; ++ failtrack++; ++ ++ if (failtrack >= failcount && failcount != 0){ ++ system(failcommand); ++ } + } + explicit_bzero(&passwd, sizeof(passwd)); + len = 0; diff --git a/patches/slock-foreground-and-background-20210611-35633d4.diff b/patches/slock-foreground-and-background-20210611-35633d4.diff @@ -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 + diff --git a/patches/slock-message-xft-20210315-ae681c5.patch b/patches/slock-message-xft-20210315-ae681c5.patch @@ -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 + diff --git a/patches/slock-xresources-20191126-53e56c7.diff b/patches/slock-xresources-20191126-53e56c7.diff @@ -0,0 +1,159 @@ +From 53e56c751b3f2be4154760788850c51dbffc0add Mon Sep 17 00:00:00 2001 +From: Arnas Udovicius <zordsdavini@gmail.com> +Date: Tue, 26 Nov 2019 16:16:15 +0200 +Subject: [PATCH] Read colors from Xresources + +--- + config.def.h | 14 +++++++++-- + slock.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++ + util.h | 3 +++ + 3 files changed, 83 insertions(+), 2 deletions(-) + +diff --git a/config.def.h b/config.def.h +index 6288856..bfc1ba0 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -3,11 +3,21 @@ static const char *user = "nobody"; + static const char *group = "nogroup"; + + static const char *colorname[NUMCOLS] = { +- [INIT] = "black", /* after initialization */ +- [INPUT] = "#005577", /* during input */ ++ [INIT] = "black", /* after initialization */ ++ [INPUT] = "#005577", /* during input */ + [FAILED] = "#CC3333", /* wrong password */ + [CAPS] = "red", /* CapsLock on */ + }; + ++/* ++ * Xresources preferences to load at startup ++ */ ++ResourcePref resources[] = { ++ { "color0", STRING, &colorname[INIT] }, ++ { "color4", STRING, &colorname[INPUT] }, ++ { "color1", STRING, &colorname[FAILED] }, ++ { "color3", STRING, &colorname[CAPS] }, ++}; ++ + /* treat a cleared input like a wrong password (color) */ + static const int failonclear = 1; +diff --git a/slock.c b/slock.c +index 5f4fb7a..2395547 100644 +--- a/slock.c ++++ b/slock.c +@@ -6,6 +6,7 @@ + + #include <ctype.h> + #include <errno.h> ++#include <math.h> + #include <grp.h> + #include <pwd.h> + #include <stdarg.h> +@@ -19,6 +20,7 @@ + #include <X11/Xlib.h> + #include <X11/Xutil.h> + #include <X11/XKBlib.h> ++#include <X11/Xresource.h> + + #include "arg.h" + #include "util.h" +@@ -46,6 +48,19 @@ struct xrandr { + int errbase; + }; + ++/* Xresources preferences */ ++enum resource_type { ++ STRING = 0, ++ INTEGER = 1, ++ FLOAT = 2 ++}; ++ ++typedef struct { ++ char *name; ++ enum resource_type type; ++ void *dst; ++} ResourcePref; ++ + #include "config.h" + + static void +@@ -306,6 +321,57 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) + return NULL; + } + ++int ++resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst) ++{ ++ char **sdst = dst; ++ int *idst = dst; ++ float *fdst = dst; ++ ++ char fullname[256]; ++ char fullclass[256]; ++ char *type; ++ XrmValue ret; ++ ++ snprintf(fullname, sizeof(fullname), "%s.%s", "slock", name); ++ snprintf(fullclass, sizeof(fullclass), "%s.%s", "Slock", name); ++ fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0'; ++ ++ XrmGetResource(db, fullname, fullclass, &type, &ret); ++ if (ret.addr == NULL || strncmp("String", type, 64)) ++ return 1; ++ ++ switch (rtype) { ++ case STRING: ++ *sdst = ret.addr; ++ break; ++ case INTEGER: ++ *idst = strtoul(ret.addr, NULL, 10); ++ break; ++ case FLOAT: ++ *fdst = strtof(ret.addr, NULL); ++ break; ++ } ++ return 0; ++} ++ ++void ++config_init(Display *dpy) ++{ ++ char *resm; ++ XrmDatabase db; ++ ResourcePref *p; ++ ++ XrmInitialize(); ++ resm = XResourceManagerString(dpy); ++ if (!resm) ++ return; ++ ++ db = XrmGetStringDatabase(resm); ++ for (p = resources; p < resources + LEN(resources); p++) ++ resource_load(db, p->name, p->type, p->dst); ++} ++ + static void + usage(void) + { +@@ -364,6 +430,8 @@ main(int argc, char **argv) { + if (setuid(duid) < 0) + die("slock: setuid: %s\n", strerror(errno)); + ++ config_init(dpy); ++ + /* check for Xrandr support */ + rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase); + +diff --git a/util.h b/util.h +index 6f748b8..148dbc1 100644 +--- a/util.h ++++ b/util.h +@@ -1,2 +1,5 @@ ++/* macros */ ++#define LEN(a) (sizeof(a) / sizeof(a)[0]) ++ + #undef explicit_bzero + void explicit_bzero(void *, size_t); +-- +2.24.0 + diff --git a/slock.1 b/slock.1 @@ -0,0 +1,39 @@ +.Dd 2016-08-23 +.Dt SLOCK 1 +.Sh NAME +.Nm slock +.Nd simple X screen locker +.Sh SYNOPSIS +.Nm +.Op Fl v +.Op Ar cmd Op Ar arg ... +.Sh DESCRIPTION +.Nm +is a simple X screen locker. If provided, +.Ar cmd Op Ar arg ... +is executed after the screen has been locked. +.Sh OPTIONS +.Bl -tag -width Ds +.It Fl v +Print version information to stdout and exit. +.El +.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 -offset left +Section "ServerFlags" + Option "DontVTSwitch" "True" + Option "DontZap" "True" +EndSection +.Ed +.Sh EXAMPLES +$ +.Nm +/usr/sbin/s2ram +.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. diff --git a/slock.c b/slock.c @@ -0,0 +1,627 @@ +/* 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 <math.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/dpms.h> +#ifdef XINERAMA +#include <X11/extensions/Xinerama.h> +#endif +#include <X11/keysym.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xresource.h> +#include <X11/Xft/Xft.h> +#include <Imlib2.h> + +#include "arg.h" +#include "util.h" + +char *argv0; +int failtrack = 0; + +enum { + INIT, + INPUT, + FAILED, + NUMCOLS +}; + +/* Xresources preferences */ +enum resource_type { + STRING = 0, + INTEGER = 1, + FLOAT = 2 +}; + +typedef struct { + char *name; + enum resource_type type; + void *dst; +} ResourcePref; + +#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 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; + 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; + failtrack++; + + if (failtrack >= failcount && failcount != 0){ + system(failcommand); + } + } + 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; +} + +int +resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst) +{ + char **sdst = dst; + int *idst = dst; + float *fdst = dst; + + char fullname[256]; + char fullclass[256]; + char *type; + XrmValue ret; + + snprintf(fullname, sizeof(fullname), "%s.%s", "slock", name); + snprintf(fullclass, sizeof(fullclass), "%s.%s", "Slock", name); + fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0'; + + XrmGetResource(db, fullname, fullclass, &type, &ret); + if (ret.addr == NULL || strncmp("String", type, 64)) + return 1; + + switch (rtype) { + case STRING: + *sdst = ret.addr; + break; + case INTEGER: + *idst = strtoul(ret.addr, NULL, 10); + break; + case FLOAT: + *fdst = strtof(ret.addr, NULL); + break; + } + return 0; +} + +void +config_init(Display *dpy) +{ + char *resm; + XrmDatabase db; + ResourcePref *p; + + XrmInitialize(); + resm = XResourceManagerString(dpy); + if (!resm) + return; + + db = XrmGetStringDatabase(resm); + for (p = resources; p < resources + LEN(resources); p++) + resource_load(db, p->name, p->type, p->dst); +} + +static void +usage(void) +{ + die("usage: slock [-v] [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 s, nlocks, nscreens; + CARD16 standby, suspend, off; + + ARGBEGIN { + case 'v': + fprintf(stderr, "slock-"VERSION"\n"); + 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 + + config_init(dpy); + + /* 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) + nlocks++; + else + break; + } + XSync(dpy, 0); + + /* did we manage to lock everything? */ + if (nlocks != nscreens) + return 1; + + /* DPMS magic to disable the monitor */ + if (!DPMSCapable(dpy)) + die("slock: DPMSCapable failed\n"); + if (!DPMSEnable(dpy)) + die("slock: DPMSEnable failed\n"); + if (!DPMSGetTimeouts(dpy, &standby, &suspend, &off)) + die("slock: DPMSGetTimeouts failed\n"); + if (!standby || !suspend || !off) + die("slock: at least one DPMS variable is zero\n"); + if (!DPMSSetTimeouts(dpy, monitortime, monitortime, monitortime)) + die("slock: DPMSSetTimeouts failed\n"); + + XSync(dpy, 0); + + /* 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); + } + + /* reset DPMS values to inital ones */ + DPMSSetTimeouts(dpy, standby, suspend, off); + XSync(dpy, 0); + XCloseDisplay(dpy); + return 0; +} diff --git a/util.h b/util.h @@ -0,0 +1,5 @@ +/* macros */ +#define LEN(a) (sizeof(a) / sizeof(a)[0]) + +#undef explicit_bzero +void explicit_bzero(void *, size_t);