mirror of https://github.com/tiyn/slock
TiynGER
5 years ago
parent
56f4813627
commit
4d269b7fb1
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MIT/X Consortium License
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© 2015-2016 Markus Teich <markus.teich@stusta.mhn.de>
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© 2014 Dimitris Papastamos <sin@2f30.org>
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© 2006-2014 Anselm R Garbe <anselm@garbe.us>
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© 2014-2016 Laslo Hunhold <dev@frign.de>
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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# slock - simple screen locker
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# See LICENSE file for copyright and license details.
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include config.mk
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SRC = slock.c ${COMPATSRC}
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OBJ = ${SRC:.c=.o}
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all: options slock
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options:
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@echo slock build options:
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@echo "CFLAGS = ${CFLAGS}"
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@echo "LDFLAGS = ${LDFLAGS}"
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@echo "CC = ${CC}"
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.c.o:
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@echo CC $<
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@${CC} -c ${CFLAGS} $<
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${OBJ}: config.h config.mk arg.h util.h
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config.h:
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@echo creating $@ from config.def.h
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@cp config.def.h $@
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slock: ${OBJ}
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@echo CC -o $@
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@${CC} -o $@ ${OBJ} ${LDFLAGS}
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clean:
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@echo cleaning
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@rm -f slock ${OBJ} slock-${VERSION}.tar.gz
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dist: clean
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@echo creating dist tarball
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@mkdir -p slock-${VERSION}
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@cp -R LICENSE Makefile README slock.1 config.mk \
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${SRC} explicit_bzero.c config.def.h arg.h util.h slock-${VERSION}
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@tar -cf slock-${VERSION}.tar slock-${VERSION}
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@gzip slock-${VERSION}.tar
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@rm -rf slock-${VERSION}
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install: all
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@echo installing executable file to ${DESTDIR}${PREFIX}/bin
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@mkdir -p ${DESTDIR}${PREFIX}/bin
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@cp -f slock ${DESTDIR}${PREFIX}/bin
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@chmod 755 ${DESTDIR}${PREFIX}/bin/slock
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@chmod u+s ${DESTDIR}${PREFIX}/bin/slock
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@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
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@mkdir -p ${DESTDIR}${MANPREFIX}/man1
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@sed "s/VERSION/${VERSION}/g" <slock.1 >${DESTDIR}${MANPREFIX}/man1/slock.1
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@chmod 644 ${DESTDIR}${MANPREFIX}/man1/slock.1
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uninstall:
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@echo removing executable file from ${DESTDIR}${PREFIX}/bin
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@rm -f ${DESTDIR}${PREFIX}/bin/slock
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@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
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@rm -f ${DESTDIR}${MANPREFIX}/man1/slock.1
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.PHONY: all options clean dist install uninstall
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@ -1,6 +0,0 @@
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# slock
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This is my patched version of slock.
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This belongs to my larbs installation script, meaning it's supposed to work in the environment of the larbs-base-installation.
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## Patches
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The list below shows the currently applied patches to this build.
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/*
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* Copy me if you can.
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* by 20h
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*/
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#ifndef ARG_H__
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#define ARG_H__
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extern char *argv0;
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/* use main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
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argv[0] && argv[0][0] == '-'\
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&& argv[0][1];\
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argc--, argv++) {\
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char argc_;\
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char **argv_;\
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int brk_;\
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if (argv[0][1] == '-' && argv[0][2] == '\0') {\
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argv++;\
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argc--;\
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break;\
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}\
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for (brk_ = 0, argv[0]++, argv_ = argv;\
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argv[0][0] && !brk_;\
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argv[0]++) {\
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if (argv_ != argv)\
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break;\
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argc_ = argv[0][0];\
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switch (argc_)
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/* Handles obsolete -NUM syntax */
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#define ARGNUM case '0':\
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case '1':\
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case '2':\
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case '3':\
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case '4':\
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case '5':\
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case '6':\
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case '7':\
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case '8':\
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case '9'
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#define ARGEND }\
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}
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#define ARGC() argc_
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#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
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#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
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((x), abort(), (char *)0) :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
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(char *)0 :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#define LNGARG() &argv[0][0]
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#endif
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/* user and group to drop privileges to */
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static const char *user = "nobody";
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static const char *group = "nogroup";
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static const char *colorname[NUMCOLS] = {
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[INIT] = "black", /* after initialization */
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[INPUT] = "#005577", /* during input */
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[FAILED] = "#CC3333", /* wrong password */
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};
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/* treat a cleared input like a wrong password (color) */
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static const int failonclear = 1;
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/* user and group to drop privileges to */
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static const char *user = "nobody";
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static const char *group = "nobody";
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static const char *colorname[NUMCOLS] = {
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[INIT] = "black", /* after initialization */
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[INPUT] = "#005577", /* during input */
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[FAILED] = "#CC3333", /* wrong password */
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};
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/* treat a cleared input like a wrong password (color) */
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static const int failonclear = 1;
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# slock version
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VERSION = 1.4
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# Customize below to fit your system
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# paths
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PREFIX = /usr/local
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MANPREFIX = ${PREFIX}/share/man
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X11INC = /usr/X11R6/include
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X11LIB = /usr/X11R6/lib
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# includes and libs
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INCS = -I. -I/usr/include -I${X11INC}
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LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr
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# flags
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CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H
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CFLAGS = -std=c99 -pedantic -Wall -Os ${INCS} ${CPPFLAGS}
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LDFLAGS = -s ${LIBS}
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COMPATSRC = explicit_bzero.c
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# On OpenBSD and Darwin remove -lcrypt from LIBS
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#LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 -lXext -lXrandr
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# On *BSD remove -DHAVE_SHADOW_H from CPPFLAGS
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# On NetBSD add -D_NETBSD_SOURCE to CPPFLAGS
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#CPPFLAGS = -DVERSION=\"${VERSION}\" -D_BSD_SOURCE -D_NETBSD_SOURCE
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# On OpenBSD set COMPATSRC to empty
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#COMPATSRC =
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# compiler and linker
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CC = cc
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/* $OpenBSD: explicit_bzero.c,v 1.3 2014/06/21 02:34:26 matthew Exp $ */
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/*
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* Public domain.
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* Written by Matthew Dempsky.
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*/
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#include <string.h>
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__attribute__((weak)) void
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__explicit_bzero_hook(void *buf, size_t len)
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{
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}
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void
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explicit_bzero(void *buf, size_t len)
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{
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memset(buf, 0, len);
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__explicit_bzero_hook(buf, len);
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}
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@ -1,39 +0,0 @@
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.Dd 2016-08-23
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.Dt SLOCK 1
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.Sh NAME
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.Nm slock
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.Nd simple X screen locker
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.Sh SYNOPSIS
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.Nm
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.Op Fl v
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.Op Ar cmd Op Ar arg ...
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.Sh DESCRIPTION
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.Nm
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is a simple X screen locker. If provided,
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.Ar cmd Op Ar arg ...
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is executed after the screen has been locked.
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl v
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Print version information to stdout and exit.
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.El
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.Sh SECURITY CONSIDERATIONS
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To make sure a locked screen can not be bypassed by switching VTs
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or killing the X server with Ctrl+Alt+Backspace, it is recommended
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to disable both in
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.Xr xorg.conf 5
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for maximum security:
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.Bd -literal -offset left
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Section "ServerFlags"
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Option "DontVTSwitch" "True"
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Option "DontZap" "True"
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EndSection
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.Ed
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.Sh EXAMPLES
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$
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.Nm
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/usr/sbin/s2ram
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.Sh CUSTOMIZATION
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.Nm
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can be customized by creating a custom config.h from config.def.h and
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(re)compiling the source code. This keeps it fast, secure and simple.
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/* See LICENSE file for license details. */
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#define _XOPEN_SOURCE 500
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#if HAVE_SHADOW_H
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#include <shadow.h>
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <X11/extensions/Xrandr.h>
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#include <X11/keysym.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include "arg.h"
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#include "util.h"
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char *argv0;
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enum {
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INIT,
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INPUT,
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FAILED,
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NUMCOLS
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};
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struct lock {
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int screen;
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Window root, win;
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Pixmap pmap;
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unsigned long colors[NUMCOLS];
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};
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struct xrandr {
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int active;
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int evbase;
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int errbase;
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};
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#include "config.h"
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static void
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die(const char *errstr, ...)
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{
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va_list ap;
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(1);
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}
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#ifdef __linux__
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#include <fcntl.h>
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#include <linux/oom.h>
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static void
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dontkillme(void)
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{
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FILE *f;
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const char oomfile[] = "/proc/self/oom_score_adj";
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if (!(f = fopen(oomfile, "w"))) {
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if (errno == ENOENT)
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return;
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die("slock: fopen %s: %s\n", oomfile, strerror(errno));
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}
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fprintf(f, "%d", OOM_SCORE_ADJ_MIN);
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if (fclose(f)) {
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if (errno == EACCES)
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die("slock: unable to disable OOM killer. "
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"Make sure to suid or sgid slock.\n");
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else
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die("slock: fclose %s: %s\n", oomfile, strerror(errno));
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}
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}
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#endif
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static const char *
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gethash(void)
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{
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const char *hash;
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struct passwd *pw;
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/* Check if the current user has a password entry */
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errno = 0;
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if (!(pw = getpwuid(getuid()))) {
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if (errno)
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die("slock: getpwuid: %s\n", strerror(errno));
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else
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die("slock: cannot retrieve password entry\n");
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}
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hash = pw->pw_passwd;
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#if HAVE_SHADOW_H
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if (!strcmp(hash, "x")) {
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struct spwd *sp;
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if (!(sp = getspnam(pw->pw_name)))
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die("slock: getspnam: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = sp->sp_pwdp;
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}
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#else
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if (!strcmp(hash, "*")) {
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#ifdef __OpenBSD__
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if (!(pw = getpwuid_shadow(getuid())))
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die("slock: getpwnam_shadow: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = pw->pw_passwd;
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#else
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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
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
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++) {
|
|
||||||
XSetWindowBackground(dpy,
|
|
||||||
locks[screen]->win,
|
|
||||||
locks[screen]->colors[color]);
|
|
||||||
XClearWindow(dpy, locks[screen]->win);
|
|
||||||
}
|
|
||||||
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;
|
|
||||||
|
|
||||||
if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
|
|
||||||
return NULL;
|
|
||||||
|
|
||||||
lock->screen = screen;
|
|
||||||
lock->root = RootWindow(dpy, lock->screen);
|
|
||||||
|
|
||||||
for (i = 0; i < NUMCOLS; i++) {
|
|
||||||
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
|
|
||||||
colorname[i], &color, &dummy);
|
|
||||||
lock->colors[i] = color.pixel;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* 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),
|
|
||||||
0, DefaultDepth(dpy, lock->screen),
|
|
||||||
CopyFromParent,
|
|
||||||
DefaultVisual(dpy, lock->screen),
|
|
||||||
CWOverrideRedirect | CWBackPixel, &wa);
|
|
||||||
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);
|
|
||||||
|
|
||||||
/* 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);
|
|
||||||
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] [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;
|
|
||||||
|
|
||||||
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));
|
|
||||||
|
|
||||||
/* 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;
|
|
||||||
|
|
||||||
/* 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);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
Loading…
Reference in new issue