From 2a1e9a6ea450a2552dfa58530297ee9add83eddc Mon Sep 17 00:00:00 2001 From: Michael Stapelberg Date: Mon, 9 Mar 2009 18:15:38 +0100 Subject: [PATCH] Import slock-0.9 as i3lock --- i3lock/LICENSE | 21 ++++++ i3lock/Makefile | 50 +++++++++++++ i3lock/README | 24 +++++++ i3lock/config.mk | 30 ++++++++ i3lock/slock.c | 178 +++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 303 insertions(+) create mode 100644 i3lock/LICENSE create mode 100644 i3lock/Makefile create mode 100644 i3lock/README create mode 100644 i3lock/config.mk create mode 100644 i3lock/slock.c diff --git a/i3lock/LICENSE b/i3lock/LICENSE new file mode 100644 index 00000000..faf1c092 --- /dev/null +++ b/i3lock/LICENSE @@ -0,0 +1,21 @@ +MIT/X Consortium License + +© 2006-2008 Anselm R Garbe + +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/i3lock/Makefile b/i3lock/Makefile new file mode 100644 index 00000000..2036f04a --- /dev/null +++ b/i3lock/Makefile @@ -0,0 +1,50 @@ +# slock - simple screen locker +# © 2006-2007 Anselm R. Garbe, Sander van Dijk + +include config.mk + +SRC = slock.c +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.mk + +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 config.mk ${SRC} slock-${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 + +uninstall: + @echo removing executable file from ${DESTDIR}${PREFIX}/bin + @rm -f ${DESTDIR}${PREFIX}/bin/slock + +.PHONY: all options clean dist install uninstall diff --git a/i3lock/README b/i3lock/README new file mode 100644 index 00000000..a81290d8 --- /dev/null +++ b/i3lock/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/i3lock/config.mk b/i3lock/config.mk new file mode 100644 index 00000000..cfa53694 --- /dev/null +++ b/i3lock/config.mk @@ -0,0 +1,30 @@ +# slock version +VERSION = 0.9 + +# Customize below to fit your system + +# paths +PREFIX = /usr/local + +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 + +# flags +CPPFLAGS = -DVERSION=\"${VERSION}\" -DHAVE_SHADOW_H +CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS} +LDFLAGS = -s ${LIBS} + +# On *BSD remove -DHAVE_SHADOW_H from CPPFLAGS and add -DHAVE_BSD_AUTH +# On OpenBSD and Darwin remove -lcrypt from LIBS + +# compiler and linker +CC = cc + +# Install mode. On BSD systems MODE=2755 and GROUP=auth +# On others MODE=4755 and GROUP=root +#MODE=2755 +#GROUP=auth diff --git a/i3lock/slock.c b/i3lock/slock.c new file mode 100644 index 00000000..6f2e8afe --- /dev/null +++ b/i3lock/slock.c @@ -0,0 +1,178 @@ +/* See LICENSE file for license details. */ +#define _XOPEN_SOURCE 500 +#if HAVE_SHADOW_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if HAVE_BSD_AUTH +#include +#include +#endif + +static void +die(const char *errstr, ...) { + va_list ap; + + va_start(ap, errstr); + vfprintf(stderr, errstr, ap); + va_end(ap); + exit(EXIT_FAILURE); +} + +#ifndef HAVE_BSD_AUTH +static const char * +get_password() { /* only run as root */ + const char *rval; + struct passwd *pw; + + if(geteuid() != 0) + die("slock: cannot retrieve password entry (make sure to suid slock)\n"); + pw = getpwuid(getuid()); + endpwent(); + rval = pw->pw_passwd; + +#if HAVE_SHADOW_H + { + struct spwd *sp; + sp = getspnam(getenv("USER")); + endspent(); + rval = sp->sp_pwdp; + } +#endif + + /* drop privileges */ + if(setgid(pw->pw_gid) < 0 || setuid(pw->pw_uid) < 0) + die("slock: cannot drop privileges\n"); + return rval; +} +#endif + +int +main(int argc, char **argv) { + char curs[] = {0, 0, 0, 0, 0, 0, 0, 0}; + char buf[32], passwd[256]; + int num, screen; + +#ifndef HAVE_BSD_AUTH + const char *pws; +#endif + unsigned int len; + Bool running = True; + Cursor invisible; + Display *dpy; + KeySym ksym; + Pixmap pmap; + Window root, w; + XColor black, dummy; + XEvent ev; + XSetWindowAttributes wa; + + if((argc == 2) && !strcmp("-v", argv[1])) + die("slock-"VERSION", © 2006-2008 Anselm R Garbe\n"); + else if(argc != 1) + die("usage: slock [-v]\n"); + +#ifndef HAVE_BSD_AUTH + pws = get_password(); +#endif + + if(!(dpy = XOpenDisplay(0))) + die("slock: cannot open display\n"); + screen = DefaultScreen(dpy); + root = RootWindow(dpy, screen); + + /* init */ + wa.override_redirect = 1; + wa.background_pixel = BlackPixel(dpy, screen); + w = XCreateWindow(dpy, root, 0, 0, DisplayWidth(dpy, screen), DisplayHeight(dpy, screen), + 0, DefaultDepth(dpy, screen), CopyFromParent, + DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixel, &wa); + XAllocNamedColor(dpy, DefaultColormap(dpy, screen), "black", &black, &dummy); + pmap = XCreateBitmapFromData(dpy, w, curs, 8, 8); + invisible = XCreatePixmapCursor(dpy, pmap, pmap, &black, &black, 0, 0); + XDefineCursor(dpy, w, invisible); + XMapRaised(dpy, w); + for(len = 1000; len; len--) { + if(XGrabPointer(dpy, root, False, ButtonPressMask | ButtonReleaseMask | PointerMotionMask, + GrabModeAsync, GrabModeAsync, None, invisible, CurrentTime) == GrabSuccess) + break; + usleep(1000); + } + if((running = running && (len > 0))) { + for(len = 1000; len; len--) { + if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime) + == GrabSuccess) + break; + usleep(1000); + } + running = (len > 0); + } + len = 0; + XSync(dpy, False); + + /* main event loop */ + while(running && !XNextEvent(dpy, &ev)) { + if(len == 0 && DPMSCapable(dpy)) { + DPMSEnable(dpy); + DPMSForceLevel(dpy, DPMSModeOff); + } + if(ev.type == KeyPress) { + buf[0] = 0; + 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; +#ifdef HAVE_BSD_AUTH + running = !auth_userokay(getlogin(), NULL, "auth-xlock", passwd); +#else + running = strcmp(crypt(passwd, pws), pws); +#endif + if (running != 0) + XBell(dpy, 100); + len = 0; + break; + case XK_Escape: + len = 0; + break; + case XK_BackSpace: + if(len) + --len; + break; + default: + if(num && !iscntrl((int) buf[0]) && (len + num < sizeof passwd)) { + memcpy(passwd + len, buf, num); + len += num; + } + break; + } + } + } + XUngrabPointer(dpy, CurrentTime); + XFreePixmap(dpy, pmap); + XDestroyWindow(dpy, w); + XCloseDisplay(dpy); + return 0; +}