Initial
This commit is contained in:
commit
d07ed0bfaf
159
bak.c
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159
bak.c
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#include <X11/Xlib.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xatom.h>
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#include <X11/extensions/xf86vmode.h>
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#include <X11/Xutil.h>
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#include <X11/Xft/Xft.h>
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#define PASS_LEN 20
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#define FONT_SIZE 12
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typedef struct { unsigned long flags;
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unsigned long functions;
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unsigned long decorations;
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long inputMode;
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unsigned long status;
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} Hints;
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char *message = "Password";
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void catch_fire(char *string, int error){
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fprintf(stderr, string);
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exit(error);
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}
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void draw_gui(Display*, Window, Visual*, Colormap, int, int, int);
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int main(void) {
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Display *d = XOpenDisplay(NULL);
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if ( d == NULL )
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catch_fire("Cannot open display\n", 1);
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int s = DefaultScreen(d);
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Window w;
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XEvent e;
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Visual *visual = DefaultVisual(d, s);
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Colormap cmap = DefaultColormap(d, s);
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int depth = DefaultDepth(d, s);
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int width = DisplayWidth(d, s);
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int height = DisplayHeight(d, s);
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int mode_count;
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// VIDEO MODES
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XF86VidModeModeInfo **modes, *video_mode;
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XF86VidModeGetAllModeLines(d, s, &mode_count, &modes);
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video_mode = modes[0];
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// ATTRIBUTES
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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attributes.background_pixel = BlackPixel(d, s);
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// COCKS FOR FULLSCREEN QOQS
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Hints hints;
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hints.flags = 2;
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hints.decorations = 0;
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Atom roperty = XInternAtom(d, "_MOTIF_WM_HINTS", True);
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w = XCreateWindow(d, XRootWindow(d, s), 0, 0, width, height, 0, depth, InputOutput, visual, CWBackPixel|CWOverrideRedirect, &attributes);
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draw_gui(d, w, visual, cmap, width, height, s);
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XSelectInput(d, w, ExposureMask | KeyPressMask);
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XMapWindow(d, w);
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// SETTING FULLSCREEN
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XF86VidModeSwitchToMode(d, s, video_mode);
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XF86VidModeSetViewPort(d, s, 0, 0);
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XMoveResizeWindow(d, w, 0, 0, width, height);
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XMapRaised(d, w);
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XGrabPointer(d, w, True, 0, GrabModeAsync, GrabModeAsync, w, 0L, CurrentTime);
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XGrabKeyboard(d, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
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while (1) {
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XNextEvent(d, &e);
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if (e.type == KeyPress)
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break;
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}
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XCloseDisplay(d);
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return 0;
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}
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void draw_gui(Display *d, Window w, Visual *visual, Colormap cmap, int width, int height, int s){
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// FONT
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char font_name[strlen("monospace-") +2];
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sprintf(font_name, "monospace-%d", FONT_SIZE);
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XftFont *font = XftFontOpenName(d, s, font_name);
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// FONT COLORS
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XftColor xft_black;
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XftColorAllocName (d, visual, cmap, "black", &xft_black);
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XftColor xft_white;
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XftColorAllocName (d, visual, cmap, "white", &xft_white);
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XftDraw *xftdraw = XftDrawCreate(d, w, visual, cmap);
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// WHITE RECTANGLE
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XftDrawRect(xftdraw, &xft_white, width/2 - ((strlen(message) + PASS_LEN) / 2)*FONT_SIZE, height/2 - 2*FONT_SIZE,
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(strlen(message) + PASS_LEN)*FONT_SIZE, 4*FONT_SIZE);
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// BLACK RECTANGLE
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XftDrawRect(xftdraw, &xft_black, width/2 - ((PASS_LEN - strlen(message)) / 2)*FONT_SIZE, height/2 - 2*FONT_SIZE + FONT_SIZE/2,
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(PASS_LEN * FONT_SIZE) - FONT_SIZE/2, 3*FONT_SIZE);
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// MESSAGE STRING
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XftDrawString8(xftdraw, &xft_black, font, width/2 - ((strlen(message) + PASS_LEN) / 2)*FONT_SIZE + FONT_SIZE/2,
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height/2 + FONT_SIZE/2, message, strlen(message));
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}
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339
main.c
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339
main.c
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#include <crypt.h>
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#include <shadow.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#include <grp.h>
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#include <unistd.h>
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#include <X11/Xutil.h>
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#include <X11/Xft/Xft.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/extensions/xf86vmode.h>
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/* user and group to drop privileges to */
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static const char *user = "overlord";
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static const char *group = "wheel";
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static const char *message = "Password";
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#define PASS_LEN 1024
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#define PASS_BOX_LEN 20
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#define FONT_SIZE 12
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typedef struct { unsigned long flags;
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unsigned long functions;
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unsigned long decorations;
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long inputMode;
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unsigned long status;
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} Hints;
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char pass_buffer[PASS_LEN], passwd[PASS_LEN];
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void catch_fire (char*, int);
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void draw_ui (Display*, Window, Visual*, Colormap, int, int, int);
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void window_attr (Display*, Window, int, int, int);
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void anullate (char*, int);
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void get_passwd(Display*, const char*);
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static const char *generate_hash(void);
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int main(void) {
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struct passwd *pwd;
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struct group *grp;
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const char *hash;
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uid_t duid;
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gid_t dgid;
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Display *d = XOpenDisplay(NULL);
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if ( d == NULL )
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catch_fire("Cannot open display\n", 1);
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if (!(pwd = getpwnam(user)))
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catch_fire("Cannot get user", 6);
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duid = pwd->pw_uid;
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if (!(grp = getgrnam(group)))
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catch_fire("Can't get group", 7);
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dgid = grp->gr_gid;
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int s = DefaultScreen(d);
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int depth = DefaultDepth(d, s);
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int width = DisplayWidth(d, s);
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int height = DisplayHeight(d, s);
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Window w;
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Visual *visual = DefaultVisual(d, s);
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Colormap cmap = DefaultColormap(d, s);
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// IGNORES WM RULES
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XSetWindowAttributes attributes;
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attributes.override_redirect = True;
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attributes.background_pixel = BlackPixel(d, s);
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// MAKE THE WINDOW
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w = XCreateWindow(d, XRootWindow(d, s), 0, 0, width, height, 0, depth,
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InputOutput, visual, CWBackPixel | CWOverrideRedirect, &attributes);
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// SET WINDOW ATTRIBUTES
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window_attr(d, w, s, width, height);
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// DRAW THE RECTANGLES AND STRINGS
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draw_ui(d, w, visual, cmap, width, height, s);
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hash = generate_hash();
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crypt("", hash);
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/* drop privileges */
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if (setgroups(0, NULL) < 0)
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;
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if (setgid(dgid) < 0)
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;
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if (setuid(duid) < 0)
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;
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get_passwd(d, hash);
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XCloseDisplay(d);
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return 0;
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}
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void catch_fire (char *string, int error){
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fprintf(stderr, string);
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exit(error);
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}
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void draw_ui(Display *d, Window w, Visual *visual, Colormap cmap, int width, int height, int s){
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//FONT SHENANIGANS
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char font_name[strlen("monospace-") +2];
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sprintf(font_name, "monospace-%d", FONT_SIZE);
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XftFont *font = XftFontOpenName(d, s, font_name);
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// FONT COLORS
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XftColor xft_black;
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XftColorAllocName (d, visual, cmap, "black", &xft_black);
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XftColor xft_white;
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XftColorAllocName (d, visual, cmap, "white", &xft_white);
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XftDraw *xftdraw = XftDrawCreate(d, w, visual, cmap);
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//MAKE WHITE RECT
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int white_rect_x = width/2 - ((strlen(message) + PASS_BOX_LEN) / 2)*FONT_SIZE;
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int white_rect_y = height/2 - 2*FONT_SIZE;
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int white_rect_width = (strlen(message) + PASS_BOX_LEN)*FONT_SIZE;
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int white_rect_height = 4*FONT_SIZE;
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XftDrawRect(xftdraw, &xft_white, white_rect_x, white_rect_y, white_rect_width, white_rect_height);
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// MAKE BLACK RECT
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int black_rect_x = width/2 - ((PASS_BOX_LEN - strlen(message)) / 2)*FONT_SIZE;
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int black_rect_y = height/2 - 2*FONT_SIZE + FONT_SIZE/2;
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int black_rect_width = (PASS_BOX_LEN * FONT_SIZE) - FONT_SIZE/2;
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int black_rect_height = 3*FONT_SIZE;
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XftDrawRect(xftdraw, &xft_black, black_rect_x, black_rect_y, black_rect_width, black_rect_height);
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// PRINT PASS MESSAGE
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XftDrawString8(xftdraw, &xft_black, font, white_rect_x + FONT_SIZE/2, height/2 + FONT_SIZE/2 , message, strlen(message));
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}
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void window_attr (Display *d, Window w, int s, int width, int height){
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int mode_count;
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// VIDEO MODES
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XF86VidModeModeInfo **modes, *video_mode;
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XF86VidModeGetAllModeLines(d, s, &mode_count, &modes);
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video_mode = modes[0];
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// COCKS FOR FULLSCREEN QOQS
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Hints hints;
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hints.flags = 2;
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hints.decorations = 0;
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Atom roperty = XInternAtom(d, "_MOTIF_WM_HINTS", True);
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XSelectInput(d, w, ExposureMask | KeyPressMask);
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XMapWindow(d, w);
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// SETTING FULLSCREEN
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XF86VidModeSwitchToMode(d, s, video_mode);
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XF86VidModeSetViewPort(d, s, 0, 0);
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XMoveResizeWindow(d, w, 0, 0, width, height);
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XMapRaised(d, w);
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XGrabPointer(d, w, True, 0, GrabModeAsync, GrabModeAsync, w, 0L, CurrentTime);
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XGrabKeyboard(d, w, True, GrabModeAsync, GrabModeAsync, CurrentTime);
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}
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void anullate(char *str, int size){
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memset(str, 0, size);
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}
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void get_passwd(Display *d, const char *hash){
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int num, failure = 0, check = 1;
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unsigned int len = 0;
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char *input_hash;
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KeySym ksym;
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XEvent e;
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// CHECK PASSWORD
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while (1) {
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XNextEvent(d, &e);
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if (e.type == KeyPress) {
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anullate(pass_buffer, sizeof(pass_buffer));
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num = XLookupString(&e.xkey, pass_buffer, sizeof(pass_buffer), &ksym, 0);
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if (IsKeypadKey(ksym)) {
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if (ksym == XK_KP_Enter)
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ksym = XK_Return;
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else if (ksym >= XK_KP_0 && ksym <= XK_KP_9)
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ksym = (ksym - XK_KP_0) + XK_0;
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}
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if (IsFunctionKey(ksym) ||
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IsKeypadKey(ksym) ||
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IsMiscFunctionKey(ksym) ||
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IsPFKey(ksym) ||
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IsPrivateKeypadKey(ksym))
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continue;
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switch (ksym) {
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case XK_Return:
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passwd[len] = '\0';
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if (!(input_hash = crypt(passwd, hash))){
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fprintf(stderr, "loqy : crypt error : %s\n", strerror(errno));
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fprintf(stderr, "%d %d\n", errno, EINVAL);
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}
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else
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check = !!strcmp(input_hash, hash);
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if (check) {
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XBell(d, 100);
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failure = 1;
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}
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anullate(passwd, sizeof(passwd));
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len = 0;
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break;
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case XK_Escape:
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anullate(passwd, sizeof(passwd));
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len = 0;
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break;
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case XK_BackSpace:
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if (len)
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passwd[--len] = '\0';
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break;
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default:
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if (num && !iscntrl((int)pass_buffer[0]) && (len + num < sizeof(passwd))) {
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memcpy(passwd + len, pass_buffer, num);
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len += num;
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}
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break;
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}
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if(!check)
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exit(0);
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}
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}
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}
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static const char *generate_hash(void){
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const char *hash;
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struct passwd *pw;
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if( !(pw = getpwuid(getuid())) )
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catch_fire("Cannot get password info\n", 2);
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hash = pw->pw_passwd;
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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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catch_fire("cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n", 69);
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hash = sp->sp_pwdp;
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}
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if (!strcmp(hash, "*")) {
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catch_fire("slock: getpwuid: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n", 98);
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}
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return hash;
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}
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