diff options
Diffstat (limited to 'slogin')
| -rw-r--r-- | slogin/Makefile | 16 | ||||
| -rw-r--r-- | slogin/slogin.c | 169 |
2 files changed, 0 insertions, 185 deletions
diff --git a/slogin/Makefile b/slogin/Makefile deleted file mode 100644 index 4d8c919..0000000 --- a/slogin/Makefile +++ /dev/null @@ -1,16 +0,0 @@ -CC = cc -CFLAGS = -std=c99 -Wall -Wextra -pedantic -Os -LDFLAGS = -lX11 -lcrypt -PREFIX ?= /usr/local - -all: slogin - -slogin: slogin.c - $(CC) $(CFLAGS) -o $@ $< $(LDFLAGS) - -clean: - rm -f slogin - -install: slogin - mkdir -p $(DESTDIR)$(PREFIX)/bin - cp -f slogin $(DESTDIR)$(PREFIX)/bin diff --git a/slogin/slogin.c b/slogin/slogin.c deleted file mode 100644 index 205fd32..0000000 --- a/slogin/slogin.c +++ /dev/null @@ -1,169 +0,0 @@ -#define _XOPEN_SOURCE 700 -#include <X11/Xlib.h> -#include <X11/keysym.h> -#include <ctype.h> -#include <grp.h> -#include <pwd.h> -#if HAVE_SHADOW_H -#include <shadow.h> -#endif -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <crypt.h> -#include "../core/accent.h" - -#define WIDTH 400 -#define HEIGHT 100 - -static ColorShm *accentshm; -static char accentcol[8] = "#005577"; - -static int -auth(const char *user, const char *pass) -{ - struct passwd *pw = getpwnam(user); - const char *hash; - if (!pw) - return 0; -#if HAVE_SHADOW_H - struct spwd *sp = getspnam(user); - hash = sp ? sp->sp_pwdp : pw->pw_passwd; -#else - hash = pw->pw_passwd; -#endif - if (!hash || hash[0] == '!' || hash[0] == '*') - return 0; - return strcmp(crypt(pass, hash), hash) == 0; -} - -static void -draw(Display *dpy, Window win, GC gc, const char *prompt, - const char *input, int hidden) -{ - XClearWindow(dpy, win); - XDrawString(dpy, win, gc, 10, 25, prompt, strlen(prompt)); - if (input && *input) { - char buf[128]; - const char *show = input; - if (hidden) { - size_t n = strlen(input); - if (n >= sizeof buf) - n = sizeof buf - 1; - memset(buf, '*', n); - buf[n] = '\0'; - show = buf; - } - XDrawString(dpy, win, gc, 10, 50, show, strlen(show)); - } - XFlush(dpy); -} - -static void -updateaccent(Display *dpy, Colormap cmap, GC gc, Window win) -{ - XColor col; - readaccent(&accentshm, accentcol); - XParseColor(dpy, cmap, accentcol, &col); - XAllocColor(dpy, cmap, &col); - XSetForeground(dpy, gc, col.pixel); - XSetWindowBorder(dpy, win, col.pixel); -} - -int -main(void) -{ - Display *dpy; - Window win; - XEvent ev; - GC gc; - XFontStruct *font; - int screen; - Colormap cmap; - - if (!(dpy = XOpenDisplay(NULL))) { - fprintf(stderr, "slogin: cannot open display\n"); - return 1; - } - screen = DefaultScreen(dpy); - cmap = DefaultColormap(dpy, screen); - win = XCreateSimpleWindow(dpy, RootWindow(dpy, screen), - DisplayWidth(dpy, screen)/2 - WIDTH/2, - DisplayHeight(dpy, screen)/2 - HEIGHT/2, - WIDTH, HEIGHT, 2, BlackPixel(dpy, screen), BlackPixel(dpy, screen)); - XStoreName(dpy, win, "slogin"); - XSelectInput(dpy, win, ExposureMask | KeyPressMask); - gc = XCreateGC(dpy, win, 0, NULL); - updateaccent(dpy, cmap, gc, win); - XMapRaised(dpy, win); - font = XLoadQueryFont(dpy, "fixed"); - if (font) - XSetFont(dpy, gc, font->fid); - - char user[64] = ""; - char pass[64] = ""; - int stage = 0; - draw(dpy, win, gc, "user:", user, 0); - - for (;;) { - if (XPending(dpy)) { - XNextEvent(dpy, &ev); - if (ev.type == Expose) { - draw(dpy, win, gc, stage ? "pass:" : "user:", - stage ? pass : user, stage); - } else if (ev.type == KeyPress) { - char buf[32]; - KeySym ksym; - int len = XLookupString(&ev.xkey, buf, sizeof buf, &ksym, NULL); - if (ksym == XK_Return) { - if (stage == 0) { - stage = 1; - draw(dpy, win, gc, "pass:", pass, 1); - } else { - if (auth(user, pass)) { - struct passwd *pw = getpwnam(user); - if (!pw) - exit(1); - chdir(pw->pw_dir); - setenv("HOME", pw->pw_dir, 1); - setenv("SHELL", pw->pw_shell, 1); - setenv("USER", pw->pw_name, 1); - setenv("LOGNAME", pw->pw_name, 1); - initgroups(pw->pw_name, pw->pw_gid); - setgid(pw->pw_gid); - setuid(pw->pw_uid); - execlp(pw->pw_shell, pw->pw_shell, "-l", NULL); - perror("execlp"); - exit(1); - } else { - user[0] = pass[0] = '\0'; - stage = 0; - draw(dpy, win, gc, "user:", user, 0); - } - } - } else if (ksym == XK_BackSpace) { - if (stage == 0) { - size_t n = strlen(user); - if (n) user[n-1] = '\0'; - draw(dpy, win, gc, "user:", user, 0); - } else { - size_t n = strlen(pass); - if (n) pass[n-1] = '\0'; - draw(dpy, win, gc, "pass:", pass, 1); - } - } else if (len && !iscntrl((unsigned char)buf[0])) { - if (stage == 0 && strlen(user) + len < sizeof user - 1) { - strncat(user, buf, len); - draw(dpy, win, gc, "user:", user, 0); - } else if (stage == 1 && strlen(pass) + len < sizeof pass - 1) { - strncat(pass, buf, len); - draw(dpy, win, gc, "pass:", pass, 1); - } - } - } - } - updateaccent(dpy, cmap, gc, win); - usleep(20000); - } -} |