diff options
| -rw-r--r-- | slock-1.4/Makefile | 3 | ||||
| -rw-r--r-- | slock-1.4/config.def.h | 5 | ||||
| -rw-r--r-- | slock-1.4/config.h | 3 | ||||
| -rw-r--r-- | slock-1.4/config.mk | 2 | ||||
| -rw-r--r-- | slock-1.4/lockscreen.jpg | bin | 0 -> 6036703 bytes | |||
| -rwxr-xr-x | slock-1.4/slock | bin | 0 -> 23176 bytes | |||
| -rw-r--r-- | slock-1.4/slock-background-image-20220318-1c5a538.diff | 149 | ||||
| -rw-r--r-- | slock-1.4/slock.c | 50 | ||||
| -rw-r--r-- | slock-1.4/slock.c.orig | 387 |
9 files changed, 593 insertions, 6 deletions
diff --git a/slock-1.4/Makefile b/slock-1.4/Makefile index f4ffbb7..0f308b7 100644 --- a/slock-1.4/Makefile +++ b/slock-1.4/Makefile @@ -51,7 +51,8 @@ install: all @mkdir -p ${DESTDIR}${MANPREFIX}/man1 @sed "s/VERSION/${VERSION}/g" <slock.1 >${DESTDIR}${MANPREFIX}/man1/slock.1 @chmod 644 ${DESTDIR}${MANPREFIX}/man1/slock.1 - + @mkdir -p ${DESTDIR}${PREFIX}/share/slock + @cp -f lockscreen.jpg ${DESTDIR}${PREFIX}/share/slock/ uninstall: @echo removing executable file from ${DESTDIR}${PREFIX}/bin @rm -f ${DESTDIR}${PREFIX}/bin/slock diff --git a/slock-1.4/config.def.h b/slock-1.4/config.def.h index 9855e21..eb88b3d 100644 --- a/slock-1.4/config.def.h +++ b/slock-1.4/config.def.h @@ -1,6 +1,6 @@ /* user and group to drop privileges to */ static const char *user = "nobody"; -static const char *group = "nogroup"; +static const char *group = "nobody"; static const char *colorname[NUMCOLS] = { [INIT] = "black", /* after initialization */ @@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = { /* treat a cleared input like a wrong password (color) */ static const int failonclear = 1; + +/* Background image path, should be available to the user above */ +static const char* background_image = ""; diff --git a/slock-1.4/config.h b/slock-1.4/config.h index 27cc2d0..64f13ed 100644 --- a/slock-1.4/config.h +++ b/slock-1.4/config.h @@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = { /* treat a cleared input like a wrong password (color) */ static const int failonclear = 1; + +/* Background image path, should be available to the user above */ +static const char* background_image = "/usr/local/share/slock/lockscreen.jpg"; diff --git a/slock-1.4/config.mk b/slock-1.4/config.mk index 74429ae..987819e 100644 --- a/slock-1.4/config.mk +++ b/slock-1.4/config.mk @@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib # includes and libs INCS = -I. -I/usr/include -I${X11INC} -LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr +LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2 # flags CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H diff --git a/slock-1.4/lockscreen.jpg b/slock-1.4/lockscreen.jpg Binary files differnew file mode 100644 index 0000000..08e4321 --- /dev/null +++ b/slock-1.4/lockscreen.jpg diff --git a/slock-1.4/slock b/slock-1.4/slock Binary files differnew file mode 100755 index 0000000..5742593 --- /dev/null +++ b/slock-1.4/slock diff --git a/slock-1.4/slock-background-image-20220318-1c5a538.diff b/slock-1.4/slock-background-image-20220318-1c5a538.diff new file mode 100644 index 0000000..2d4caf4 --- /dev/null +++ b/slock-1.4/slock-background-image-20220318-1c5a538.diff @@ -0,0 +1,149 @@ +From 1c5a5383a1cf3351fe9c80a21cfbc98c5ec4355d Mon Sep 17 00:00:00 2001 +From: Yan Doroshenko <yan1994doroshenko@gmail.com> +Date: Fri, 18 Mar 2022 12:28:13 +0100 +Subject: [PATCH] Provide a way to set a background image + +--- + config.def.h | 5 ++++- + config.mk | 2 +- + slock.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++--- + 3 files changed, 52 insertions(+), 5 deletions(-) + +diff --git a/config.def.h b/config.def.h +index 9855e21..eb88b3d 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -1,6 +1,6 @@ + /* user and group to drop privileges to */ + static const char *user = "nobody"; +-static const char *group = "nogroup"; ++static const char *group = "nobody"; + + static const char *colorname[NUMCOLS] = { + [INIT] = "black", /* after initialization */ +@@ -10,3 +10,6 @@ static const char *colorname[NUMCOLS] = { + + /* treat a cleared input like a wrong password (color) */ + static const int failonclear = 1; ++ ++/* Background image path, should be available to the user above */ ++static const char* background_image = ""; +diff --git a/config.mk b/config.mk +index 74429ae..987819e 100644 +--- a/config.mk ++++ b/config.mk +@@ -12,7 +12,7 @@ X11LIB = /usr/X11R6/lib + + # includes and libs + INCS = -I. -I/usr/include -I${X11INC} +-LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr ++LIBS = -L/usr/lib -lc -lcrypt -L${X11LIB} -lX11 -lXext -lXrandr -lImlib2 + + # flags + CPPFLAGS = -DVERSION=\"${VERSION}\" -D_DEFAULT_SOURCE -DHAVE_SHADOW_H +diff --git a/slock.c b/slock.c +index 5ae738c..345a279 100644 +--- a/slock.c ++++ b/slock.c +@@ -18,6 +18,7 @@ + #include <X11/keysym.h> + #include <X11/Xlib.h> + #include <X11/Xutil.h> ++#include <Imlib2.h> + + #include "arg.h" + #include "util.h" +@@ -35,6 +36,7 @@ struct lock { + int screen; + Window root, win; + Pixmap pmap; ++ Pixmap bgmap; + unsigned long colors[NUMCOLS]; + }; + +@@ -46,6 +48,8 @@ struct xrandr { + + #include "config.h" + ++Imlib_Image image; ++ + static void + die(const char *errstr, ...) + { +@@ -190,9 +194,10 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens, + color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT); + if (running && oldc != color) { + for (screen = 0; screen < nscreens; screen++) { +- XSetWindowBackground(dpy, +- locks[screen]->win, +- locks[screen]->colors[color]); ++ if (locks[screen]->bgmap) ++ XSetWindowBackgroundPixmap(dpy, locks[screen]->win, locks[screen]->bgmap); ++ else ++ XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[0]); + XClearWindow(dpy, locks[screen]->win); + } + oldc = color; +@@ -235,6 +240,17 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) + lock->screen = screen; + lock->root = RootWindow(dpy, lock->screen); + ++ if(image) ++ { ++ lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen)); ++ imlib_context_set_display(dpy); ++ imlib_context_set_visual(DefaultVisual(dpy, lock->screen)); ++ imlib_context_set_colormap(DefaultColormap(dpy, lock->screen)); ++ imlib_context_set_drawable(lock->bgmap); ++ imlib_render_image_on_drawable(0, 0); ++ imlib_free_image(); ++ } ++ + for (i = 0; i < NUMCOLS; i++) { + XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen), + colorname[i], &color, &dummy); +@@ -251,6 +267,8 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) + CopyFromParent, + DefaultVisual(dpy, lock->screen), + CWOverrideRedirect | CWBackPixel, &wa); ++ if(lock->bgmap) ++ XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap); + lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8); + invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap, + &color, &color, 0, 0); +@@ -355,6 +373,32 @@ main(int argc, char **argv) { + if (setuid(duid) < 0) + die("slock: setuid: %s\n", strerror(errno)); + ++ /* Load picture */ ++ Imlib_Image buffer = imlib_load_image(background_image); ++ imlib_context_set_image(buffer); ++ int background_image_width = imlib_image_get_width(); ++ int background_image_height = imlib_image_get_height(); ++ ++ /* Create an image to be rendered */ ++ Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy)); ++ image = imlib_create_image(scr->width, scr->height); ++ imlib_context_set_image(image); ++ ++ /* Fill the image for every X monitor */ ++ XRRMonitorInfo *monitors; ++ int number_of_monitors; ++ monitors = XRRGetMonitors(dpy, RootWindow(dpy, XScreenNumberOfScreen(scr)), True, &number_of_monitors); ++ ++ int i; ++ for (i = 0; i < number_of_monitors; i++) { ++ imlib_blend_image_onto_image(buffer, 0, 0, 0, background_image_width, background_image_height, monitors[i].x, monitors[i].y, monitors[i].width, monitors[i].height); ++ } ++ ++ /* Clean up */ ++ imlib_context_set_image(buffer); ++ imlib_free_image(); ++ imlib_context_set_image(image); ++ + /* check for Xrandr support */ + rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase); + +-- +2.35.1 + diff --git a/slock-1.4/slock.c b/slock-1.4/slock.c index d2f0886..33f0a50 100644 --- a/slock-1.4/slock.c +++ b/slock-1.4/slock.c @@ -18,6 +18,7 @@ #include <X11/keysym.h> #include <X11/Xlib.h> #include <X11/Xutil.h> +#include <Imlib2.h> #include "arg.h" #include "util.h" @@ -35,6 +36,7 @@ struct lock { int screen; Window root, win; Pixmap pmap; + Pixmap bgmap; unsigned long colors[NUMCOLS]; }; @@ -46,6 +48,8 @@ struct xrandr { #include "config.h" +Imlib_Image image; + static void die(const char *errstr, ...) { @@ -190,9 +194,10 @@ readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens, color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT); if (running && oldc != color) { for (screen = 0; screen < nscreens; screen++) { - XSetWindowBackground(dpy, - locks[screen]->win, - locks[screen]->colors[color]); + if (locks[screen]->bgmap) + XSetWindowBackgroundPixmap(dpy, locks[screen]->win, locks[screen]->bgmap); + else + XSetWindowBackground(dpy, locks[screen]->win, locks[screen]->colors[0]); XClearWindow(dpy, locks[screen]->win); } oldc = color; @@ -227,6 +232,17 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) lock->screen = screen; lock->root = RootWindow(dpy, lock->screen); + if(image) + { + lock->bgmap = XCreatePixmap(dpy, lock->root, DisplayWidth(dpy, lock->screen), DisplayHeight(dpy, lock->screen), DefaultDepth(dpy, lock->screen)); + imlib_context_set_display(dpy); + imlib_context_set_visual(DefaultVisual(dpy, lock->screen)); + imlib_context_set_colormap(DefaultColormap(dpy, lock->screen)); + imlib_context_set_drawable(lock->bgmap); + imlib_render_image_on_drawable(0, 0); + imlib_free_image(); + } + for (i = 0; i < NUMCOLS; i++) { XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen), colorname[i], &color, &dummy); @@ -243,6 +259,8 @@ lockscreen(Display *dpy, struct xrandr *rr, int screen) CopyFromParent, DefaultVisual(dpy, lock->screen), CWOverrideRedirect | CWBackPixel, &wa); + if(lock->bgmap) + XSetWindowBackgroundPixmap(dpy, lock->win, lock->bgmap); lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8); invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap, &color, &color, 0, 0); @@ -347,6 +365,32 @@ main(int argc, char **argv) { if (setuid(duid) < 0) die("slock: setuid: %s\n", strerror(errno)); + /* Load picture */ + Imlib_Image buffer = imlib_load_image(background_image); + imlib_context_set_image(buffer); + int background_image_width = imlib_image_get_width(); + int background_image_height = imlib_image_get_height(); + + /* Create an image to be rendered */ + Screen *scr = ScreenOfDisplay(dpy, DefaultScreen(dpy)); + image = imlib_create_image(scr->width, scr->height); + imlib_context_set_image(image); + + /* Fill the image for every X monitor */ + XRRMonitorInfo *monitors; + int number_of_monitors; + monitors = XRRGetMonitors(dpy, RootWindow(dpy, XScreenNumberOfScreen(scr)), True, &number_of_monitors); + + int i; + for (i = 0; i < number_of_monitors; i++) { + imlib_blend_image_onto_image(buffer, 0, 0, 0, background_image_width, background_image_height, monitors[i].x, monitors[i].y, monitors[i].width, monitors[i].height); + } + + /* Clean up */ + imlib_context_set_image(buffer); + imlib_free_image(); + imlib_context_set_image(image); + /* check for Xrandr support */ rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase); diff --git a/slock-1.4/slock.c.orig b/slock-1.4/slock.c.orig new file mode 100644 index 0000000..d2f0886 --- /dev/null +++ b/slock-1.4/slock.c.orig @@ -0,0 +1,387 @@ +/* See LICENSE file for license details. */ +#define _XOPEN_SOURCE 500 +#if HAVE_SHADOW_H +#include <shadow.h> +#endif + +#include <ctype.h> +#include <errno.h> +#include <grp.h> +#include <pwd.h> +#include <stdarg.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <X11/extensions/Xrandr.h> +#include <X11/keysym.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> + +#include "arg.h" +#include "util.h" + +char *argv0; + +enum { + INIT, + INPUT, + FAILED, + NUMCOLS +}; + +struct lock { + int screen; + Window root, win; + Pixmap pmap; + unsigned long colors[NUMCOLS]; +}; + +struct xrandr { + int active; + int evbase; + int errbase; +}; + +#include "config.h" + +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 +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) { + XResizeWindow(dpy, locks[screen]->win, + rre->width, rre->height); + XClearWindow(dpy, locks[screen]->win); + } + } + } 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; +} |
