diff options
Diffstat (limited to 'appl/xnlock/xnlock.c')
| -rw-r--r-- | appl/xnlock/xnlock.c | 1083 |
1 files changed, 0 insertions, 1083 deletions
diff --git a/appl/xnlock/xnlock.c b/appl/xnlock/xnlock.c deleted file mode 100644 index c19066f3323e..000000000000 --- a/appl/xnlock/xnlock.c +++ /dev/null @@ -1,1083 +0,0 @@ -/* - * xnlock -- Dan Heller, 1990 - * "nlock" is a "new lockscreen" type program... something that prevents - * screen burnout by making most of it "black" while providing something - * of interest to be displayed in case anyone is watching. - * "xnlock" is the X11 version of the program. - * Original sunview version written by Dan Heller 1985 (not included here). - */ -#ifdef HAVE_CONFIG_H -#include <config.h> -RCSID("$Id$"); -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <signal.h> -#include <X11/StringDefs.h> -#include <X11/Intrinsic.h> -#include <X11/keysym.h> -#include <X11/Shell.h> -#include <ctype.h> -#ifdef HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif -#ifdef HAVE_PWD_H -#include <pwd.h> -#endif -#ifdef HAVE_CRYPT_H -#undef des_encrypt -#define des_encrypt wingless_pigs_mostly_fail_to_fly -#include <crypt.h> -#undef des_encrypt -#endif - -#ifdef KRB5 -#include <krb5.h> -#include <kafs.h> -#endif - -#include <roken.h> -#include <err.h> - -static char login[16]; -static char userprompt[128]; -#ifdef KRB5 -static krb5_context context; -static krb5_principal client; -#endif - -#define font_height(font) (font->ascent + font->descent) - -static char *SPACE_STRING = " "; -static char STRING[] = "****************"; - -#define STRING_LENGTH (sizeof(STRING)) -#define MAX_PASSWD_LENGTH 256 -/* (sizeof(STRING)) */ - -#define PROMPT "Password: " -#define FAIL_MSG "Sorry, try again" -#define LEFT 001 -#define RIGHT 002 -#define DOWN 004 -#define UP 010 -#define FRONT 020 -#define X_INCR 3 -#define Y_INCR 2 -#define XNLOCK_CTRL 1 -#define XNLOCK_NOCTRL 0 - -static XtAppContext app; -static Display *dpy; -static unsigned short Width, Height; -static Widget widget; -static GC gc; -static XtIntervalId timeout_id; -static char *words; -static int x, y; -static Pixel Black, White; -static XFontStruct *font; -static char root_cpass[128]; -static char user_cpass[128]; -static int time_left, prompt_x, prompt_y, time_x, time_y; -static unsigned long interval; -static Pixmap left0, left1, right0, right1, left_front, - right_front, front, down; - -#define MAXLINES 40 - -#define IS_MOVING 1 -#define GET_PASSWD 2 -static int state; /* indicates states: walking or getting passwd */ - -static int ALLOW_LOGOUT = (60*10); /* Allow logout after nn seconds */ -#define LOGOUT_PASSWD "enuHDmTo5Lq4g" /* when given password "LOGOUT" */ -static time_t locked_at; - -struct appres_t { - Pixel bg; - Pixel fg; - XFontStruct *font; - Boolean ignore_passwd; - Boolean do_reverse; - Boolean accept_root; - char *text, *text_prog, *file, *logoutPasswd; - Boolean no_screensaver; - Boolean destroytickets; -} appres; - -static XtResource resources[] = { - { XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel), - XtOffsetOf(struct appres_t, bg), XtRString, "black" }, - - { XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), - XtOffsetOf(struct appres_t, fg), XtRString, "white" }, - - { XtNfont, XtCFont, XtRFontStruct, sizeof (XFontStruct *), - XtOffsetOf(struct appres_t, font), - XtRString, "-*-new century schoolbook-*-*-*-18-*" }, - - { "ignorePasswd", "IgnorePasswd", XtRBoolean, sizeof(Boolean), - XtOffsetOf(struct appres_t,ignore_passwd),XtRImmediate,(XtPointer)False }, - - { "acceptRootPasswd", "AcceptRootPasswd", XtRBoolean, sizeof(Boolean), - XtOffsetOf(struct appres_t, accept_root), XtRImmediate, (XtPointer)True }, - - { "text", "Text", XtRString, sizeof(String), - XtOffsetOf(struct appres_t, text), XtRString, "I'm out running around." }, - - { "program", "Program", XtRString, sizeof(String), - XtOffsetOf(struct appres_t, text_prog), XtRImmediate, NULL }, - - { "file", "File", XtRString, sizeof(String), - XtOffsetOf(struct appres_t,file), XtRImmediate, NULL }, - - { "logoutPasswd", "logoutPasswd", XtRString, sizeof(String), - XtOffsetOf(struct appres_t, logoutPasswd), XtRString, LOGOUT_PASSWD }, - - { "noScreenSaver", "NoScreenSaver", XtRBoolean, sizeof(Boolean), - XtOffsetOf(struct appres_t,no_screensaver), XtRImmediate, (XtPointer)True }, - - { "destroyTickets", "DestroyTickets", XtRBoolean, sizeof(Boolean), - XtOffsetOf(struct appres_t,destroytickets), XtRImmediate, (XtPointer)True }, -}; - -static XrmOptionDescRec options[] = { - { "-fg", ".foreground", XrmoptionSepArg, NULL }, - { "-foreground", ".foreground", XrmoptionSepArg, NULL }, - { "-fn", ".font", XrmoptionSepArg, NULL }, - { "-font", ".font", XrmoptionSepArg, NULL }, - { "-ip", ".ignorePasswd", XrmoptionNoArg, "True" }, - { "-noip", ".ignorePasswd", XrmoptionNoArg, "False" }, - { "-ar", ".acceptRootPasswd", XrmoptionNoArg, "True" }, - { "-noar", ".acceptRootPasswd", XrmoptionNoArg, "False" }, - { "-nonoscreensaver", ".noScreenSaver", XrmoptionNoArg, "False" }, - { "-nodestroytickets", ".destroyTickets", XrmoptionNoArg, "False" }, -}; - -static char* -get_words(void) -{ - FILE *pp = NULL; - static char buf[512]; - long n; - - if (appres.text_prog) { - pp = popen(appres.text_prog, "r"); - if (!pp) { - warn("popen %s", appres.text_prog); - return appres.text; - } - n = fread(buf, 1, sizeof(buf) - 1, pp); - buf[n] = 0; - pclose(pp); - return buf; - } - if (appres.file) { - pp = fopen(appres.file, "r"); - if (!pp) { - warn("fopen %s", appres.file); - return appres.text; - } - n = fread(buf, 1, sizeof(buf) - 1, pp); - buf[n] = 0; - fclose(pp); - return buf; - } - - return appres.text; -} - -static void -usage(int exit_code) -{ - fprintf(stderr, "usage: %s [options] [message]\n", getprogname()); - fprintf(stderr, "-fg color foreground color\n"); - fprintf(stderr, "-bg color background color\n"); - fprintf(stderr, "-rv reverse foreground/background colors\n"); - fprintf(stderr, "-nrv no reverse video\n"); - fprintf(stderr, "-ip ignore passwd\n"); - fprintf(stderr, "-nip don't ignore passwd\n"); - fprintf(stderr, "-ar accept root's passwd to unlock\n"); - fprintf(stderr, "-nar don't accept root's passwd\n"); - fprintf(stderr, "-f [file] message is read from file or ~/.msgfile\n"); - fprintf(stderr, "-prog program text is gotten from executing `program'\n"); - fprintf(stderr, "-nodestroytickets keep kerberos tickets\n"); - fprintf(stderr, "--version\n"); - fprintf(stderr, "--help\n"); - exit(exit_code); -} - -static void -init_words (int argc, char **argv) -{ - int i = 0; - - while(argv[i]) { - if(strcmp(argv[i], "-p") == 0 - || strcmp(argv[i], "-prog") == 0) { - i++; - if(argv[i]) { - appres.text_prog = argv[i]; - i++; - } else { - warnx ("-p requires an argument"); - usage(1); - } - } else if(strcmp(argv[i], "-f") == 0) { - i++; - if(argv[i]) { - appres.file = argv[i]; - i++; - } else { - int ret; - ret = asprintf (&appres.file, - "%s/.msgfile", getenv("HOME")); - if (ret == -1) - errx (1, "cannot allocate memory for message"); - } - } else if(strcmp(argv[i], "--version") == 0) { - print_version(NULL); - exit(0); - } else if(strcmp(argv[i], "--help") == 0) { - usage(0); - } else { - int j; - int len = 1; - for(j = i; argv[j]; j++) - len += strlen(argv[j]) + 1; - appres.text = malloc(len); - if (appres.text == NULL) - errx (1, "cannot allocate memory for message"); - appres.text[0] = 0; - for(; i < j; i++){ - strlcat(appres.text, argv[i], len); - strlcat(appres.text, " ", len); - } - } - } -} - -static void -ScreenSaver(int save) -{ - static int timeout, interval, prefer_blank, allow_exp; - if(!appres.no_screensaver){ - if (save) { - XGetScreenSaver(dpy, &timeout, &interval, - &prefer_blank, &allow_exp); - XSetScreenSaver(dpy, 0, interval, prefer_blank, allow_exp); - } else - /* restore state */ - XSetScreenSaver(dpy, timeout, interval, prefer_blank, allow_exp); - } -} - -/* Forward decls necessary */ -static void talk(int force_erase); -static unsigned long look(void); - -static int -zrefresh(void) -{ - switch (fork()) { - case -1: - warn ("zrefresh: fork"); - return -1; - case 0: - /* Child */ - execlp("zrefresh", "zrefresh", NULL); - execl(BINDIR "/zrefresh", "zrefresh", NULL); - return -1; - default: - /* Parent */ - break; - } - return 0; -} - -static void -leave(void) -{ - XUngrabPointer(dpy, CurrentTime); - XUngrabKeyboard(dpy, CurrentTime); - ScreenSaver(0); - XCloseDisplay(dpy); - zrefresh(); - exit(0); -} - -static void -walk(int dir) -{ - int incr = 0; - static int lastdir; - static int up = 1; - static Pixmap frame; - - XSetForeground(dpy, gc, White); - XSetBackground(dpy, gc, Black); - if (dir & (LEFT|RIGHT)) { /* left/right movement (mabye up/down too) */ - up = -up; /* bouncing effect (even if hit a wall) */ - if (dir & LEFT) { - incr = X_INCR; - frame = (up < 0) ? left0 : left1; - } else { - incr = -X_INCR; - frame = (up < 0) ? right0 : right1; - } - if ((lastdir == FRONT || lastdir == DOWN) && dir & UP) { - /* workaround silly bug that leaves screen dust when - * guy is facing forward or down and moves up-left/right. - */ - XCopyPlane(dpy, frame, XtWindow(widget), gc, 0, 0, 64,64, x, y, 1L); - XFlush(dpy); - } - /* note that maybe neither UP nor DOWN is set! */ - if (dir & UP && y > Y_INCR) - y -= Y_INCR; - else if (dir & DOWN && y < (int)Height - 64) - y += Y_INCR; - } - /* Explicit up/down movement only (no left/right) */ - else if (dir == UP) - XCopyPlane(dpy, front, XtWindow(widget), gc, - 0,0, 64,64, x, y -= Y_INCR, 1L); - else if (dir == DOWN) - XCopyPlane(dpy, down, XtWindow(widget), gc, - 0,0, 64,64, x, y += Y_INCR, 1L); - else if (dir == FRONT && frame != front) { - if (up > 0) - up = -up; - if (lastdir & LEFT) - frame = left_front; - else if (lastdir & RIGHT) - frame = right_front; - else - frame = front; - XCopyPlane(dpy, frame, XtWindow(widget), gc, 0, 0, 64,64, x, y, 1L); - } - if (dir & LEFT) - while(--incr >= 0) { - XCopyPlane(dpy, frame, XtWindow(widget), gc, - 0,0, 64,64, --x, y+up, 1L); - XFlush(dpy); - } - else if (dir & RIGHT) - while(++incr <= 0) { - XCopyPlane(dpy, frame, XtWindow(widget), gc, - 0,0, 64,64, ++x, y+up, 1L); - XFlush(dpy); - } - lastdir = dir; -} - -static long -my_random (void) -{ -#ifdef HAVE_RANDOM - return random(); -#else - return rand(); -#endif -} - -static int -think(void) -{ - if (my_random() & 1) - walk(FRONT); - if (my_random() & 1) { - words = get_words(); - return 1; - } - return 0; -} - -static void -move(XtPointer _p, XtIntervalId *_id) -{ - static int dir; - static unsigned int length; - - if (!length) { - int tries = 0; - dir = 0; - if ((my_random() & 1) && think()) { - talk(0); /* sets timeout to itself */ - return; - } - if (!(my_random() % 3) && (interval = look())) { - timeout_id = XtAppAddTimeOut(app, interval, move, NULL); - return; - } - interval = 20 + my_random() % 100; - do { - if (!tries) - length = Width/100 + my_random() % 90, tries = 8; - else - tries--; - switch (my_random() % 8) { - case 0: - if (x - X_INCR*length >= 5) - dir = LEFT; - case 1: - if (x + X_INCR*length <= (int)Width - 70) - dir = RIGHT; - case 2: - if (y - (Y_INCR*length) >= 5) - dir = UP, interval = 40; - case 3: - if (y + Y_INCR*length <= (int)Height - 70) - dir = DOWN, interval = 20; - case 4: - if (x - X_INCR*length >= 5 && y - (Y_INCR*length) >= 5) - dir = (LEFT|UP); - case 5: - if (x + X_INCR * length <= (int)Width - 70 && - y-Y_INCR * length >= 5) - dir = (RIGHT|UP); - case 6: - if (x - X_INCR * length >= 5 && - y + Y_INCR * length <= (int)Height - 70) - dir = (LEFT|DOWN); - case 7: - if (x + X_INCR*length <= (int)Width - 70 && - y + Y_INCR*length <= (int)Height - 70) - dir = (RIGHT|DOWN); - } - } while (!dir); - } - walk(dir); - --length; - timeout_id = XtAppAddTimeOut(app, interval, move, NULL); -} - -static void -post_prompt_box(Window window) -{ - int width = (Width / 3); - int height = font_height(font) * 6; - int box_x, box_y; - - /* make sure the entire nose icon fits in the box */ - if (height < 100) - height = 100; - - if(width < 105 + font->max_bounds.width*STRING_LENGTH) - width = 105 + font->max_bounds.width*STRING_LENGTH; - box_x = (Width - width) / 2; - time_x = prompt_x = box_x + 105; - - time_y = prompt_y = Height / 2; - box_y = prompt_y - 3 * font_height(font); - - /* erase current guy -- text message may still exist */ - XSetForeground(dpy, gc, Black); - XFillRectangle(dpy, window, gc, x, y, 64, 64); - talk(1); /* forcefully erase message if one is being displayed */ - /* Clear area in middle of screen for prompt box */ - XSetForeground(dpy, gc, White); - XFillRectangle(dpy, window, gc, box_x, box_y, width, height); - - /* make a box that's 5 pixels thick. Then add a thin box inside it */ - XSetForeground(dpy, gc, Black); - XSetLineAttributes(dpy, gc, 5, 0, 0, 0); - XDrawRectangle(dpy, window, gc, box_x+5, box_y+5, width-10, height-10); - XSetLineAttributes(dpy, gc, 0, 0, 0, 0); - XDrawRectangle(dpy, window, gc, box_x+12, box_y+12, width-23, height-23); - - XDrawString(dpy, window, gc, - prompt_x, prompt_y-font_height(font), - userprompt, strlen(userprompt)); - XDrawString(dpy, window, gc, prompt_x, prompt_y, PROMPT, strlen(PROMPT)); - /* set background for copyplane and DrawImageString; need reverse video */ - XSetBackground(dpy, gc, White); - XCopyPlane(dpy, right0, window, gc, 0,0, 64,64, - box_x + 20, box_y + (height - 64)/2, 1L); - prompt_x += XTextWidth(font, PROMPT, strlen(PROMPT)); - time_y += 2*font_height(font); -} - -static void -RaiseWindow(Widget w, XEvent *ev, String *s, Cardinal *n) -{ - Widget x; - if(!XtIsRealized(w)) - return; - x = XtParent(w); - XRaiseWindow(dpy, XtWindow(x)); -} - - -static void -ClearWindow(Widget w, XEvent *_event, String *_s, Cardinal *_n) -{ - XExposeEvent *event = (XExposeEvent *)_event; - if (!XtIsRealized(w)) - return; - XClearArea(dpy, XtWindow(w), event->x, event->y, - event->width, event->height, False); - if (state == GET_PASSWD) - post_prompt_box(XtWindow(w)); - if (timeout_id == 0 && event->count == 0) { - timeout_id = XtAppAddTimeOut(app, 1000L, move, NULL); - /* first grab the input focus */ - XSetInputFocus(dpy, XtWindow(w), RevertToPointerRoot, CurrentTime); - /* now grab the pointer and keyboard and contrain to this window */ - XGrabPointer(dpy, XtWindow(w), TRUE, 0, GrabModeAsync, - GrabModeAsync, XtWindow(w), None, CurrentTime); - } -} - -static void -countdown(XtPointer _t, XtIntervalId *_d) -{ - int *timeout = (int *)_t; - char buf[128]; - time_t seconds; - - if (--(*timeout) < 0) { - XExposeEvent event; - XtRemoveTimeOut(timeout_id); - state = IS_MOVING; - event.x = event.y = 0; - event.width = Width, event.height = Height; - ClearWindow(widget, (XEvent *)&event, 0, 0); - timeout_id = XtAppAddTimeOut(app, 200L, move, NULL); - return; - } - seconds = time(0) - locked_at; - if (seconds >= 3600) - snprintf(buf, sizeof(buf), - "Locked for %d:%02d:%02d ", - (int)seconds/3600, (int)seconds/60%60, (int)seconds%60); - else - snprintf(buf, sizeof(buf), - "Locked for %2d:%02d ", - (int)seconds/60, (int)seconds%60); - - XDrawImageString(dpy, XtWindow(widget), gc, - time_x, time_y, buf, strlen(buf)); - XtAppAddTimeOut(app, 1000L, countdown, timeout); - return; -} - -#ifdef KRB5 -static int -verify_krb5(const char *password) -{ - krb5_error_code ret; - krb5_ccache id; - - krb5_cc_default(context, &id); - ret = krb5_verify_user(context, - client, - id, - password, - 0, - NULL); - if (ret == 0){ - if (k_hasafs()) - krb5_afslog(context, id, NULL, NULL); - return 0; - } - if (ret != KRB5KRB_AP_ERR_MODIFIED) - krb5_warn(context, ret, "verify_krb5"); - - return -1; -} -#endif - -static int -verify(char *password) -{ - /* - * First try with root password, if allowed. - */ - if ( appres.accept_root - && strcmp(crypt(password, root_cpass), root_cpass) == 0) - return 0; - - /* - * Password that log out user - */ - if (getuid() != 0 && - geteuid() != 0 && - (time(0) - locked_at) > ALLOW_LOGOUT && - strcmp(crypt(password, appres.logoutPasswd), appres.logoutPasswd) == 0) - { - signal(SIGHUP, SIG_IGN); - kill(-1, SIGHUP); - sleep(5); - /* If the X-server shut down then so will we, else - * continue */ - signal(SIGHUP, SIG_DFL); - } - - /* - * Try copy of users password. - */ - if (strcmp(crypt(password, user_cpass), user_cpass) == 0) - return 0; - - /* - * Try to verify as user in case password change. - */ - if (unix_verify_user(login, password) == 0) - return 0; - -#ifdef KRB5 - /* - * Try to verify as user with kerberos 5. - */ - if(verify_krb5(password) == 0) - return 0; -#endif - - return -1; -} - - -static void -GetPasswd(Widget w, XEvent *_event, String *_s, Cardinal *_n) -{ - XKeyEvent *event = (XKeyEvent *)_event; - static char passwd[MAX_PASSWD_LENGTH]; - static unsigned int cnt; - static int is_ctrl = XNLOCK_NOCTRL; - char c; - KeySym keysym; - int echolen; - int old_state = state; - - if (event->type == ButtonPress) { - x = event->x, y = event->y; - return; - } - if (state == IS_MOVING) { - /* guy is running around--change to post prompt box. */ - XtRemoveTimeOut(timeout_id); - state = GET_PASSWD; - if (appres.ignore_passwd || !strlen(user_cpass)) - leave(); - post_prompt_box(XtWindow(w)); - cnt = 0; - time_left = 30; - countdown((XtPointer)&time_left, 0); - } - if (event->type == KeyRelease) { - keysym = XLookupKeysym(event, 0); - if (keysym == XK_Control_L || keysym == XK_Control_R) { - is_ctrl = XNLOCK_NOCTRL; - } - } - if (event->type != KeyPress) - return; - - time_left = 30; - - keysym = XLookupKeysym(event, 0); - if (keysym == XK_Control_L || keysym == XK_Control_R) { - is_ctrl = XNLOCK_CTRL; - return; - } - if (!XLookupString(event, &c, 1, &keysym, 0)) - return; - if (keysym == XK_Return || keysym == XK_Linefeed) { - passwd[cnt] = 0; - if(old_state == IS_MOVING) - return; - XtRemoveTimeOut(timeout_id); - - if(verify(passwd) == 0) - leave(); - - cnt = 0; - - XDrawImageString(dpy, XtWindow(widget), gc, - time_x, time_y, FAIL_MSG, strlen(FAIL_MSG)); - time_left = 0; - timeout_id = XtAppAddTimeOut(app, 2000L, countdown, &time_left); - return; - } - if (keysym == XK_BackSpace || keysym == XK_Delete || keysym == XK_Left) { - if (cnt) - passwd[cnt--] = ' '; - } else if (keysym == XK_u && is_ctrl == XNLOCK_CTRL) { - while (cnt) { - passwd[cnt--] = ' '; - echolen = min(cnt, STRING_LENGTH); - XDrawImageString(dpy, XtWindow(w), gc, - prompt_x, prompt_y, STRING, echolen); - XDrawImageString(dpy, XtWindow(w), gc, - prompt_x + XTextWidth(font, STRING, echolen), - prompt_y, SPACE_STRING, STRING_LENGTH - echolen + 1); - } - } else if (isprint((unsigned char)c)) { - if ((cnt + 1) >= MAX_PASSWD_LENGTH) - XBell(dpy, 50); - else - passwd[cnt++] = c; - } else - return; - echolen = min(cnt, STRING_LENGTH); - XDrawImageString(dpy, XtWindow(w), gc, - prompt_x, prompt_y, STRING, echolen); - XDrawImageString(dpy, XtWindow(w), gc, - prompt_x + XTextWidth(font, STRING, echolen), - prompt_y, SPACE_STRING, STRING_LENGTH - echolen +1); -} - -#include "nose.0.left" -#include "nose.1.left" -#include "nose.0.right" -#include "nose.1.right" -#include "nose.left.front" -#include "nose.right.front" -#include "nose.front" -#include "nose.down" - -static void -init_images(void) -{ - static Pixmap *images[] = { - &left0, &left1, &right0, &right1, - &left_front, &right_front, &front, &down - }; - static unsigned char *bits[] = { - nose_0_left_bits, nose_1_left_bits, nose_0_right_bits, - nose_1_right_bits, nose_left_front_bits, nose_right_front_bits, - nose_front_bits, nose_down_bits - }; - int i; - - for (i = 0; i < XtNumber(images); i++) - if (!(*images[i] = - XCreatePixmapFromBitmapData(dpy, DefaultRootWindow(dpy), - (char*)(bits[i]), 64, 64, 1, 0, 1))) - XtError("Can't load nose images"); -} - -static void -talk(int force_erase) -{ - unsigned int width = 0, height, Z, total = 0; - static unsigned int X, Y; - static int talking; - static struct { int x, y, width, height; } s_rect; - char *p, *p2; - char buf[BUFSIZ], args[MAXLINES][256]; - - /* clear what we've written */ - if (talking || force_erase) { - if (!talking) - return; - if (talking == 2) { - XSetForeground(dpy, gc, Black); - XDrawString(dpy, XtWindow(widget), gc, X, Y, words, strlen(words)); - } else if (talking == 1) { - XSetForeground(dpy, gc, Black); - XFillRectangle(dpy, XtWindow(widget), gc, s_rect.x-5, s_rect.y-5, - s_rect.width+10, s_rect.height+10); - } - talking = 0; - if (!force_erase) - timeout_id = XtAppAddTimeOut(app, 40L, - (XtTimerCallbackProc)move, - NULL); - return; - } - XSetForeground(dpy, gc, White); - talking = 1; - walk(FRONT); - strlcpy (buf, words, sizeof(buf)); - p = buf; - - /* possibly avoid a lot of work here - * if no CR or only one, then just print the line - */ - if (!(p2 = strchr(p, '\n')) || !p2[1]) { - int w; - - if (p2) - *p2 = 0; - w = XTextWidth(font, words, strlen(words)); - X = x + 32 - w/2; - Y = y - 5 - font_height(font); - /* give us a nice 5 pixel margin */ - if (X < 5) - X = 5; - else if (X + w + 15 > (int)Width + 5) - X = Width - w - 5; - if (Y < 5) - Y = y + 64 + 5 + font_height(font); - XDrawString(dpy, XtWindow(widget), gc, X, Y, words, strlen(words)); - timeout_id = XtAppAddTimeOut(app, 5000L, (XtTimerCallbackProc)talk, - NULL); - talking++; - return; - } - - /* p2 now points to the first '\n' */ - for (height = 0; p[0]; height++) { - int w; - *p2 = 0; - if ((w = XTextWidth(font, p, p2 - p)) > width) - width = w; - total += p2 - p; /* total chars; count to determine reading time */ - strlcpy(args[height], p, sizeof(args[height])); - if (height == MAXLINES - 1) { - puts("Message too long!"); - break; - } - p = p2+1; - if (!(p2 = strchr(p, '\n'))) - break; - } - height++; - - /* Figure out the height and width in pixels (height, width) extend - * the new box by 15 pixels on the sides (30 total) top and bottom. - */ - s_rect.width = width + 30; - s_rect.height = height * font_height(font) + 30; - if (x - s_rect.width - 10 < 5) - s_rect.x = 5; - else - if ((s_rect.x = x+32-(s_rect.width+15)/2) - + s_rect.width+15 > (int)Width-5) - s_rect.x = Width - 15 - s_rect.width; - if (y - s_rect.height - 10 < 5) - s_rect.y = y + 64 + 5; - else - s_rect.y = y - 5 - s_rect.height; - - XSetForeground(dpy, gc, White); - XFillRectangle(dpy, XtWindow(widget), gc, - s_rect.x-5, s_rect.y-5, s_rect.width+10, s_rect.height+10); - - /* make a box that's 5 pixels thick. Then add a thin box inside it */ - XSetForeground(dpy, gc, Black); - XSetLineAttributes(dpy, gc, 5, 0, 0, 0); - XDrawRectangle(dpy, XtWindow(widget), gc, - s_rect.x, s_rect.y, s_rect.width-1, s_rect.height-1); - XSetLineAttributes(dpy, gc, 0, 0, 0, 0); - XDrawRectangle(dpy, XtWindow(widget), gc, - s_rect.x + 7, s_rect.y + 7, s_rect.width - 15, - s_rect.height - 15); - - X = 15; - Y = 15 + font_height(font); - - /* now print each string in reverse order (start at bottom of box) */ - for (Z = 0; Z < height; Z++) { - XDrawString(dpy, XtWindow(widget), gc, s_rect.x+X, s_rect.y+Y, - args[Z], strlen(args[Z])); - Y += font_height(font); - } - timeout_id = XtAppAddTimeOut(app, (total/15) * 1000, - (XtTimerCallbackProc)talk, NULL); -} - -static unsigned long -look(void) -{ - XSetForeground(dpy, gc, White); - XSetBackground(dpy, gc, Black); - if (my_random() % 3) { - XCopyPlane(dpy, (my_random() & 1)? down : front, XtWindow(widget), gc, - 0, 0, 64,64, x, y, 1L); - return 1000L; - } - if (!(my_random() % 5)) - return 0; - if (my_random() % 3) { - XCopyPlane(dpy, (my_random() & 1)? left_front : right_front, - XtWindow(widget), gc, 0, 0, 64,64, x, y, 1L); - return 1000L; - } - if (!(my_random() % 5)) - return 0; - XCopyPlane(dpy, (my_random() & 1)? left0 : right0, XtWindow(widget), gc, - 0, 0, 64,64, x, y, 1L); - return 1000L; -} - -int -main (int argc, char **argv) -{ - int i; - Widget override; - XGCValues gcvalues; - - setprogname (argv[0]); - - /* - * Must be setuid root to read /etc/shadow, copy encrypted - * passwords here and then switch to sane uid. - */ - { - struct passwd *pw; - uid_t uid = getuid(); - if (!(pw = k_getpwuid(0))) - errx (1, "can't get root's passwd!"); - strlcpy(root_cpass, pw->pw_passwd, sizeof(root_cpass)); - - if (!(pw = k_getpwuid(uid))) - errx (1, "Can't get your password entry!"); - strlcpy(user_cpass, pw->pw_passwd, sizeof(user_cpass)); - setuid(uid); - if (uid != 0 && setuid(0) != -1) { - fprintf(stderr, "Failed to drop privileges!\n"); - exit(1); - } - /* Now we're no longer running setuid root. */ - strlcpy(login, pw->pw_name, sizeof(login)); - } - -#if defined(HAVE_SRANDOMDEV) - srandomdev(); -#elif defined(HAVE_RANDOM) - srandom(time(NULL)); -#else - srand (time(NULL)); -#endif - for (i = 0; i < STRING_LENGTH; i++) - STRING[i] = ((unsigned long)my_random() % ('~' - ' ')) + ' '; - - locked_at = time(0); - - snprintf(userprompt, sizeof(userprompt), "User: %s", login); -#ifdef KRB5 - { - krb5_error_code ret; - char *str; - - ret = krb5_init_context(&context); - if (ret) - errx (1, "krb5_init_context failed: %d", ret); - krb5_get_default_principal(context, &client); - krb5_unparse_name(context, client, &str); - snprintf(userprompt, sizeof(userprompt), "User: %s", str); - free(str); - } -#endif - - override = XtVaAppInitialize(&app, "XNlock", options, XtNumber(options), - &argc, argv, NULL, - XtNoverrideRedirect, True, - NULL); - - XtVaGetApplicationResources(override,(XtPointer)&appres, - resources,XtNumber(resources), - NULL); - /* the background is black and the little guy is white */ - Black = appres.bg; - White = appres.fg; - - if (appres.destroytickets) { -#ifdef KRB5 - /*XXX add krb4 code here */ -#endif - } - - dpy = XtDisplay(override); - - if (dpy == 0) - errx (1, "Error: Can't open display"); - - Width = DisplayWidth(dpy, DefaultScreen(dpy)) + 2; - Height = DisplayHeight(dpy, DefaultScreen(dpy)) + 2; - - for(i = 0; i < ScreenCount(dpy); i++){ - Widget shell, core; - - struct xxx{ - Pixel bg; - }res; - - XtResource Res[] = { - { XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel), - XtOffsetOf(struct xxx, bg), XtRString, "black" } - }; - - if(i == DefaultScreen(dpy)) - continue; - - shell = XtVaAppCreateShell(NULL,NULL, applicationShellWidgetClass, dpy, - XtNscreen, ScreenOfDisplay(dpy, i), - XtNoverrideRedirect, True, - XtNx, -1, - XtNy, -1, - NULL); - - XtVaGetApplicationResources(shell, (XtPointer)&res, - Res, XtNumber(Res), - NULL); - - core = XtVaCreateManagedWidget("_foo", widgetClass, shell, - XtNwidth, DisplayWidth(dpy, i), - XtNheight, DisplayHeight(dpy, i), - XtNbackground, res.bg, - NULL); - XtRealizeWidget(shell); - } - - widget = XtVaCreateManagedWidget("_foo", widgetClass, override, - XtNwidth, Width, - XtNheight, Height, - XtNbackground, Black, - NULL); - - init_words(--argc, ++argv); - init_images(); - - gcvalues.foreground = Black; - gcvalues.background = White; - - - font = appres.font; - gcvalues.font = font->fid; - gcvalues.graphics_exposures = False; - gc = XCreateGC(dpy, DefaultRootWindow(dpy), - GCForeground | GCBackground | GCGraphicsExposures | GCFont, - &gcvalues); - - x = Width / 2; - y = Height / 2; - srand (time(0)); - state = IS_MOVING; - - { - static XtActionsRec actions[] = { - { "ClearWindow", ClearWindow }, - { "GetPasswd", GetPasswd }, - { "RaiseWindow", RaiseWindow }, - }; - XtAppAddActions(app, actions, XtNumber(actions)); - XtOverrideTranslations(widget, - XtParseTranslationTable( - "<Expose>: ClearWindow() \n" - "<BtnDown>: GetPasswd() \n" - "<Visible>: RaiseWindow() \n" - "<KeyRelease>: GetPasswd() \n" - "<KeyPress>: GetPasswd()")); - } - - XtRealizeWidget(override); - if((i = XGrabPointer(dpy, XtWindow(widget), True, 0, GrabModeAsync, - GrabModeAsync, XtWindow(widget), - None, CurrentTime)) != 0) - errx(1, "Failed to grab pointer (%d)", i); - - if((i = XGrabKeyboard(dpy, XtWindow(widget), True, GrabModeAsync, - GrabModeAsync, CurrentTime)) != 0) - errx(1, "Failed to grab keyboard (%d)", i); - ScreenSaver(1); - XtAppMainLoop(app); - exit(0); -} - |