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xsteg.c
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xsteg.c
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/*
* Copyright 2001 Niels Provos <provos@citi.umich.edu>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niels Provos.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <sys/queue.h>
#include "config.h"
#include <dirent.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <err.h>
#include <unistd.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <event.h>
#include "xsteg.h"
#define FLAG_DOOUTGUESS 0x0001
#define FLAG_DOJPHIDE 0x0002
#define FLAG_DOJSTEG 0x0004
#define FLAG_DOINVIS 0x0008
#define FLAG_DOF5 0x0010
extern int (*event_sigcb)(void);
extern int event_gotsig;
struct event start_ev;
struct event gtk_ev;
int quit = 0;
int change = 0;
int adding = 0; /* Set while adding new files to the task */
int stopped = 0; /* When adding this indicates that we stopped */
pid_t sd_pid = -1;
int chld_stdin, chld_stdout, chld_stderr;
struct event ev_stdin, ev_stdout, ev_stderr;
int scans = FLAG_DOOUTGUESS|FLAG_DOJPHIDE|FLAG_DOJSTEG|FLAG_DOINVIS|FLAG_DOF5;
float sensitivity = 1.0;
struct filequeue filelist;
/* Widget to output text to */
GtkWidget *text, *stop, *filemenu_open;
GtkWidget *clist;
gint sorttype[2] = {-1, -1};
/* Fileselector memory */
char stored_dirname[1024];
GdkColormap *cmap;
GdkColor red, green;
GtkStyle *default_style, *red_style, *green_style;
void
clist_column_clicked(GtkCList *clist, gint column)
{
if (sorttype[column] == -1)
sorttype[column] = GTK_SORT_ASCENDING;
else if (sorttype[column] == GTK_SORT_ASCENDING)
sorttype[column] = GTK_SORT_DESCENDING;
else
sorttype[column] = GTK_SORT_ASCENDING;
gtk_clist_set_sort_type(GTK_CLIST(clist), sorttype[column]);
gtk_clist_set_sort_column(GTK_CLIST(clist), column);
gtk_clist_sort(GTK_CLIST(clist));
}
/* Terminate the process */
void
stop_clicked(GtkWidget *widget, gpointer data)
{
if (adding)
stopped = 1;
filename_flush();
stegdetect_stop();
}
void
sensitivity_change(GtkWidget *widget, gpointer data)
{
gchar *text;
float tmp;
text = gtk_entry_get_text(GTK_ENTRY(widget));
if (sscanf(text, "%f", &tmp) != 1)
return;
sensitivity = tmp;
if (sd_pid != -1)
change = 1;
}
void
select_scan(GtkWidget *widget, gpointer data)
{
char *name = data;
int which;
if (!strcmp(name, "jsteg"))
which = FLAG_DOJSTEG;
else if (!strcmp(name, "jphide"))
which = FLAG_DOJPHIDE;
else if (!strcmp(name, "outguess"))
which = FLAG_DOOUTGUESS;
else if (!strcmp(name, "invisible"))
which = FLAG_DOINVIS;
else if (!strcmp(name, "f5"))
which = FLAG_DOF5;
else
return;
if (GTK_TOGGLE_BUTTON (widget)->active)
{
/* If control reaches here, the toggle button is down */
scans |= which;
} else {
/* If control reaches here, the toggle button is up */
scans &= ~which;
}
if (scans == 0) {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), 1);
scans |= which;
}
/* Something in the settings has changed */
if (sd_pid != -1)
change = 1;
}
int
file_hasextension(char *name, char *ext)
{
int nlen = strlen(name);
int elen = strlen(ext);
if (nlen < elen)
return (0);
return (strcasecmp(name + nlen - elen, ext) == 0);
}
int
filename_adddir(char *dirname)
{
DIR *dir;
struct stat sb;
struct dirent *file;
char fullname[PATH_MAX];
int off;
if (strlen(dirname) >= sizeof(fullname) - 2)
return (0);
dir = opendir(dirname);
if (dir == NULL)
return (0);
strlcpy(fullname, dirname, sizeof(fullname));
off = strlen(fullname);
if (fullname[off - 1] != '/') {
strlcat(fullname, "/", sizeof(fullname));
off++;
}
while ((file = readdir(dir)) != NULL) {
/* Process gtk events */
while (gtk_events_pending())
gtk_main_iteration();
if (stopped) {
stopped = 0;
goto err;
}
if (!strcmp(file->d_name, ".") ||
!strcmp(file->d_name, ".."))
continue;
strlcpy(fullname + off, file->d_name, sizeof(fullname) - off);
if (stat(fullname, &sb) == -1)
continue;
if (sb.st_mode & S_IFDIR) {
if (filename_adddir(fullname) == -1)
goto err;
continue;
}
if (!(sb.st_mode & S_IFREG))
continue;
if (file_hasextension(fullname, ".jpg") ||
file_hasextension(fullname, ".jpeg"))
filename_add(fullname);
}
closedir(dir);
return (0);
err:
closedir(dir);
return (-1);
}
int
filename_add(char *name)
{
struct filename *fn;
int len;
if ((fn = malloc(sizeof(struct filename))) == NULL)
return (-1);
len = strlen(name) + 2;
fn->name = malloc(len);
if (fn->name == NULL) {
free(fn);
return (-1);
}
snprintf(fn->name, len, "%s\n", name);
fn->change = change;
change = 0;
TAILQ_INSERT_TAIL(&filelist, fn, file_next);
if (sd_pid == -1) {
sd_pid = stegdetect_start();
if (sd_pid == -1) {
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
"Could not start stegdetect - check your path.",
-1);
return (-1);
}
}
if (!event_pending(&ev_stdin, EV_WRITE, NULL))
event_add(&ev_stdin, NULL);
return (0);
}
void
filename_flush(void)
{
struct filename *fn;
for (fn = TAILQ_FIRST(&filelist); fn; fn = TAILQ_FIRST(&filelist)) {
TAILQ_REMOVE(&filelist, fn, file_next);
free(fn->name);
free(fn);
}
}
void
open_ok_clicked(GtkWidget *widget, gpointer data)
{
char line[1024];
struct stat sb;
gchar *name, *text;
GtkWidget *questor = data, *entry;
int hadtext = 0;
name = gtk_file_selection_get_filename(GTK_FILE_SELECTION(questor));
if (!strlen(name)) {
gtk_widget_destroy(questor);
return;
}
entry = GTK_FILE_SELECTION(questor)->selection_entry;
text = gtk_entry_get_text(GTK_ENTRY(entry));
if (text != NULL && strlen(text))
hadtext = 1;
strlcpy(line, name, sizeof(line));
gtk_widget_destroy(questor);
if (stat(line, &sb) == -1)
return;
if (hadtext) {
strlcpy(stored_dirname, dirname(line), sizeof(stored_dirname));
strlcat(stored_dirname, "/", sizeof(stored_dirname));
} else
strlcpy(stored_dirname, line, sizeof(stored_dirname));
adding = 1;
gtk_widget_set_sensitive(filemenu_open, FALSE);
if (sb.st_mode & S_IFREG)
filename_add(line);
else if (sb.st_mode & S_IFDIR)
filename_adddir(line);
gtk_widget_set_sensitive(filemenu_open, TRUE);
adding = 0;
}
void
menu_activate(GtkWidget *menu)
{
gtk_widget_set_sensitive(menu, TRUE);
}
GtkWidget *
create_help(GtkWidget *menu)
{
GtkWidget *window, *vbox, *ok, *label, *graphic, *text, *frame;
GtkWidget *hbox;
GdkPixmap *logo;
GdkBitmap *mask = NULL;
window = gtk_window_new(GTK_WINDOW_DIALOG);
gtk_widget_set_usize(window, 400, 250);
gtk_window_set_title(GTK_WINDOW(window), "About Xsteg");
gtk_window_set_policy(GTK_WINDOW(window), FALSE, FALSE, FALSE);
gtk_window_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
gtk_widget_realize(window);
vbox = gtk_vbox_new(FALSE, 0);
gtk_widget_show(vbox);
gtk_container_add(GTK_CONTAINER(window), vbox);
hbox = gtk_hbox_new(FALSE, 0);
gtk_widget_show(hbox);
gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, FALSE, 0);
frame = gtk_frame_new(NULL);
gtk_widget_show(frame);
gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, FALSE, 3);
gtk_frame_set_shadow_type(GTK_FRAME(frame), GTK_SHADOW_ETCHED_IN);
logo = gdk_pixmap_create_from_xpm_d(window->window, &mask, NULL,
xsteg_xpm);
graphic = gtk_pixmap_new(logo, mask);
gtk_widget_show(graphic);
gtk_container_add(GTK_CONTAINER(frame), graphic);
gdk_pixmap_unref(logo);
gdk_pixmap_unref(mask);
label = gtk_label_new("Copyright 2001 Niels Provos");
gtk_widget_show(label);
gtk_box_pack_start(GTK_BOX(hbox), label, TRUE, FALSE, 5);
hbox = gtk_hbox_new(FALSE, 0);
gtk_widget_show(hbox);
gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, FALSE, 5);
text = gtk_text_new(NULL, NULL);
gtk_widget_show(text);
gtk_box_pack_start(GTK_BOX(hbox), text, TRUE, TRUE, 5);
gtk_widget_realize(text);
gtk_text_set_word_wrap(GTK_TEXT(text), 1);
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
"\n"
"Xsteg is a graphical frontend to stegdetect.\n"
"\n"
"Stegdetect is a utilitiy for automated detection of "
"steganographic content in JPG images.\n"
"\n"
"For more information go to\n"
"\n"
"\thttp://www.outguess.org/", -1);
ok = gtk_button_new_with_label("Ok.");
gtk_widget_show(ok);
gtk_box_pack_start(GTK_BOX(vbox), ok, FALSE, FALSE, 0);
gtk_signal_connect_object(GTK_OBJECT(ok), "clicked",
GTK_SIGNAL_FUNC(menu_activate), (gpointer) menu);
gtk_signal_connect_object(GTK_OBJECT(ok), "clicked",
GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer) window);
return (window);
}
GtkWidget *
create_file_questor(void)
{
GtkWidget *questor;
GtkWidget *ok;
GtkWidget *cancel;
questor = gtk_file_selection_new ("Select File");
if (strlen(stored_dirname))
gtk_file_selection_set_filename(GTK_FILE_SELECTION(questor),
stored_dirname);
gtk_container_border_width(GTK_CONTAINER (questor), 10);
GTK_WINDOW(questor)->type = GTK_WINDOW_DIALOG;
/*
gtk_file_selection_complete(GTK_FILE_SELECTION(questor), "*.jpg");
gtk_clist_set_selection_mode(
GTK_CLIST(GTK_FILE_SELECTION(questor)->file_list),
GTK_SELECTION_MULTIPLE);
*/
ok = GTK_FILE_SELECTION(questor)->ok_button;
GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
gtk_signal_connect(GTK_OBJECT (ok), "clicked",
GTK_SIGNAL_FUNC(open_ok_clicked), questor);
cancel = GTK_FILE_SELECTION(questor)->cancel_button;
GTK_WIDGET_SET_FLAGS(cancel, GTK_CAN_DEFAULT);
gtk_signal_connect_object(GTK_OBJECT(cancel), "clicked",
GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer)questor);
gtk_widget_show_all(questor);
return (questor);
}
void
xsteg_menu_about(GtkMenuItem *item, gpointer user_data)
{
GtkWidget *window, *menu = GTK_WIDGET(user_data);
gtk_widget_set_sensitive(menu, FALSE);
window = create_help(menu);
gtk_widget_show(window);
}
void
xsteg_menu_clearneg(GtkMenuItem *item, gpointer user_data)
{
GtkCList *list = GTK_CLIST(clist);
gchar *text;
gint row;
gtk_clist_freeze(list);
/* Remove negative rows */
row = 0;
while (gtk_clist_get_text(list, row, 1, &text)) {
if (strstr(text, "negative") ||
strstr(text, "skipped") ||
strstr(text, "error")) {
gtk_clist_remove(list, row);
continue;
}
row++;
}
gtk_clist_thaw(list);
}
void
xsteg_menu_clear(GtkMenuItem *item, gpointer user_data)
{
guint len;
len = gtk_text_get_length(GTK_TEXT(text));
gtk_text_backward_delete(GTK_TEXT(text), len);
gtk_clist_clear(GTK_CLIST(clist));
}
void
xsteg_menu_open(GtkMenuItem *item, gpointer user_data)
{
GtkWidget *filemenu_open;
filemenu_open = create_file_questor();
gtk_widget_show(filemenu_open);
}
gint
xsteg_die(GtkWidget *widget, GdkEvent *event, gpointer data)
{
if (sd_pid != -1)
stegdetect_stop();
quit = 1;
return(FALSE);
}
GtkWidget *
create_scan_button(GtkWidget *box, char *name)
{
GtkWidget *button;
/* Creates a new button with the label "Button 1". */
button = gtk_check_button_new_with_label(name);
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC (select_scan), (gpointer) name);
gtk_box_pack_start(GTK_BOX(box), button, FALSE, FALSE, 0);
gtk_widget_show(button);
return (button);
}
GtkWidget *
create_menu_item(GtkWidget *window, GtkWidget *menu, char *name)
{
GtkWidget *item;
item = gtk_menu_item_new_with_label(name);
gtk_object_set_data(GTK_OBJECT(window), name, item);
gtk_widget_show(item);
gtk_container_add(GTK_CONTAINER(menu), item);
return (item);
}
/* Let libevent drive gtk */
void
gtk_cb(int fd, short which, void *arg)
{
while (gtk_events_pending())
gtk_main_iteration();
add_gtk_timeout();
}
void
add_gtk_timeout()
{
struct timeval tv;
timerclear(&tv);
tv.tv_usec = 50000;
if (!evtimer_initialized(>k_ev))
evtimer_set(>k_ev, gtk_cb, NULL);
if (!quit)
evtimer_add(>k_ev, &tv);
}
void
make_colors(void)
{
cmap = gdk_colormap_get_system();
red.red = 0xffff;
red.green = red.blue = 0;
if (!gdk_color_alloc(cmap, &red)) {
g_error("Could not allocate color: red");
}
green.green = 0x8fff;
green.red = green.blue = 0x0100;
if (!gdk_color_alloc(cmap, &green)) {
g_error("Could not allocate color: green");
}
red_style = gtk_style_copy(default_style);
red_style->fg[GTK_STATE_NORMAL] = red;
green_style = gtk_style_copy(default_style);
green_style->fg[GTK_STATE_NORMAL] = green;
}
char *
make_scan_arg(void)
{
static char tmp[9];
snprintf(tmp, sizeof(tmp), "-t%s%s%s%s%s",
scans & FLAG_DOJSTEG ? "j" : "",
scans & FLAG_DOJPHIDE ? "p" : "",
scans & FLAG_DOOUTGUESS ? "o" : "",
scans & FLAG_DOINVIS ? "i" : "",
scans & FLAG_DOF5 ? "f" : "");
return (tmp);
}
void
delayed_start(int fd, short which, void *arg)
{
sd_pid = stegdetect_start();
if (sd_pid == -1)
return;
if (TAILQ_FIRST(&filelist) != NULL)
event_add(&ev_stdin, NULL);
}
void
chld_write(int fd, short which, void *arg)
{
struct event *ev = arg;
struct filename *fn;
if ((fn = TAILQ_FIRST(&filelist)) == NULL)
return;
if (fn->change) {
fn->change = 0;
/* Let the child exit after it is done */
close(chld_stdin);
return;
}
TAILQ_REMOVE(&filelist, fn, file_next);
write(fd, fn->name, strlen(fn->name));
/* Clear file name */
free(fn->name);
free(fn);
/* Re-add event */
if (TAILQ_FIRST(&filelist) != NULL)
event_add(ev, NULL);
}
/* Response from the child */
void
chld_read(int fd, short which, void *arg)
{
char buf[1024], *p, *start;
struct event *ev = arg;
ssize_t n;
n = read(fd, buf, sizeof(buf) - 1);
if (n == -1) {
stegdetect_stop();
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
"Error: stegdetect child process died.\n", -1);
return;
} else
buf[n] = '\0';
start = p = buf;
while ((p = strchr(p, '\n')) != NULL) {
char *columns[2];
gint row;
char *nameend;
*p = '\0';
/* Check for a filename */
nameend = strstr(start, " :");
if (nameend == NULL)
goto end;
columns[0] = start;
columns[1] = nameend + 3;
*nameend = '\0';
row = gtk_clist_append(GTK_CLIST(clist), columns);
if (fd == chld_stderr)
gtk_clist_set_cell_style(GTK_CLIST(clist), row, 1,
red_style);
else if (strchr(nameend + 3, '('))
gtk_clist_set_cell_style(GTK_CLIST(clist), row, 1,
green_style);
/* gtk_clist_moveto(GTK_CLIST(clist), row, 0, 0, 0); */
end:
start = ++p;
}
/* Re-add the event */
event_add(ev, NULL);
}
int
signal_cb(void)
{
struct timeval tv;
if (sd_pid != -1) {
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL,
"The stegdetect process terminated. "
"Some files might not have been analysed.\n", -1);
}
stegdetect_stop();
/* Restart the process */
if (TAILQ_FIRST(&filelist)) {
evtimer_set(&start_ev, delayed_start, NULL);
timerclear(&tv);
evtimer_add(&start_ev, &tv);
}
return (0);
}
void
chld_handler(int sig)
{
sigset_t set, oldset;
pid_t pid;
int status;
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigprocmask(SIG_BLOCK, &set, &oldset);
while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
if (WIFEXITED(status) || WIFSIGNALED(status))
event_gotsig = 1;
}
signal(SIGCHLD, chld_handler);
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigprocmask(SIG_UNBLOCK, &set, &oldset);
}
pid_t
stegdetect_start(void)
{
pid_t pid;
char line[128];
char *which, sens[12];
int pstdin[2], pstdout[2], pstderr[2];
if (pipe(pstdin) == -1)
err(1, "pipe");
if (pipe(pstdout) == -1)
err(1, "pipe");
if (pipe(pstderr) == -1)
err(1, "pipe");
if (signal(SIGCHLD, chld_handler) == SIG_ERR)
err(1, "signal");
which = make_scan_arg();
snprintf(sens, sizeof(sens), "-s%5.3f", sensitivity);
snprintf(line, sizeof(line), "Starting stegdetect with %s %s\n",
which, sens);
gtk_text_insert(GTK_TEXT(text), NULL, NULL, NULL, line, -1);
pid = fork();
if (pid == -1)
err(1, "fork");
if (pid == 0) {
close(pstdin[1]);
close(pstdout[0]);
close(pstderr[0]);
if (dup2(pstdin[0], fileno(stdin)) == -1)
_exit(1);
if (dup2(pstdout[1], fileno(stdout)) == -1)
_exit(1);
if (dup2(pstderr[1], fileno(stderr)) == -1)
_exit(1);
execlp("stegdetect", "stegdetect", which, sens, (void *)0);
_exit(1);
}
close(pstdin[0]);
close(pstdout[1]);
close(pstderr[1]);
chld_stdin = pstdin[1];
chld_stdout = pstdout[0];
chld_stderr = pstderr[0];
event_set(&ev_stdin, chld_stdin, EV_WRITE, chld_write, &ev_stdin);
event_set(&ev_stdout, chld_stdout, EV_READ, chld_read, &ev_stdout);
event_set(&ev_stderr, chld_stderr, EV_READ, chld_read, &ev_stderr);
event_add(&ev_stdout, NULL);
event_add(&ev_stderr, NULL);
gtk_widget_set_sensitive(stop, TRUE);
return (pid);
}
void
stegdetect_stop(void)
{
pid_t pid = sd_pid;
if (sd_pid == -1)
return;
sd_pid = -1;
close(chld_stdin);
close(chld_stdout);
close(chld_stderr);
if (event_initialized(&ev_stdin))
event_del(&ev_stdin);
event_del(&ev_stdout);
event_del(&ev_stderr);
gtk_widget_set_sensitive(stop, FALSE);
kill(pid, SIGINT);
}
int
main(int argc, char *argv[] )
{
/* GtkWidget is the storage type for widgets */
GtkWidget *window, *menu, *scroll;
GtkWidget *vbox, *hbox, *vscroll, *vboxscans;
GtkWidget *vboxtmp, *eventbox, *fixed;
GtkWidget *hbox_scans, *hbox_sens, *label, *frame;
GtkWidget *file, *options, *help;
GtkWidget *filemenu, *filemenu_exit;
GtkWidget *optionmenu, *optionmenu_clear, *optionmenu_clearneg;
GtkWidget *helpmenu, *helpmenu_about;
GtkWidget *sens_text, *separator, *button;
GtkWidget *pane;
GtkAdjustment *adjust;
GtkAccelGroup *accel;
GtkTooltips *tips;
gchar *titles[] = {"Filename", "Detection"};
TAILQ_INIT(&filelist);
/* This is called in all GTK applications. Arguments are parsed
* from the command line and are returned to the application. */
gtk_init (&argc, &argv);
/* Create a new window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "xsteg");
gtk_window_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
gtk_signal_connect (GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC (xsteg_die), NULL);
/* Setup tool tips and accelerators */
tips = gtk_tooltips_new();
accel = gtk_accel_group_new();
gtk_window_add_accel_group(GTK_WINDOW(window), accel);
/* Sets the border width of the window. */
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
vbox = gtk_vbox_new(FALSE, 0);
gtk_widget_show(vbox);
gtk_container_add (GTK_CONTAINER (window), vbox);
menu = gtk_menu_bar_new ();
gtk_object_set_data (GTK_OBJECT(window), "menu", menu);
gtk_widget_show(menu);
gtk_box_pack_start(GTK_BOX(vbox), menu, FALSE, TRUE, 0);
file = create_menu_item(window, menu, "File");
options = create_menu_item(window, menu, "Options");
help = create_menu_item(window, menu, "Help");
gtk_menu_item_right_justify(GTK_MENU_ITEM(help));
/* Setup the file menu */
filemenu = gtk_menu_new();
gtk_widget_show(filemenu);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(file), filemenu);
filemenu_open = create_menu_item(window, filemenu, "Open...");
gtk_signal_connect(GTK_OBJECT(filemenu_open), "activate",
GTK_SIGNAL_FUNC(xsteg_menu_open), NULL);
gtk_widget_add_accelerator(filemenu_open, "activate", accel,
GDK_o, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
separator = gtk_menu_item_new();
gtk_widget_show(separator);
gtk_container_add(GTK_CONTAINER(filemenu), separator);
filemenu_exit = create_menu_item(window, filemenu, "Exit");
gtk_signal_connect(GTK_OBJECT(filemenu_exit), "activate",
GTK_SIGNAL_FUNC(xsteg_die), NULL);
/* Setup the options menu */
optionmenu = gtk_menu_new();
gtk_widget_show(optionmenu);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(options), optionmenu);
optionmenu_clearneg = create_menu_item(window, optionmenu,
"Clear negatives");
gtk_signal_connect(GTK_OBJECT(optionmenu_clearneg), "activate",
GTK_SIGNAL_FUNC(xsteg_menu_clearneg), NULL);
gtk_widget_add_accelerator(optionmenu_clearneg, "activate", accel,
GDK_g, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
optionmenu_clear = create_menu_item(window, optionmenu,
"Clear output");
gtk_signal_connect(GTK_OBJECT(optionmenu_clear), "activate",
GTK_SIGNAL_FUNC(xsteg_menu_clear), NULL);
gtk_widget_add_accelerator(optionmenu_clear, "activate", accel,
GDK_n, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
/* Setup the help menu */
helpmenu = gtk_menu_new();
gtk_widget_show(helpmenu);
gtk_menu_item_set_submenu(GTK_MENU_ITEM(help), helpmenu);
helpmenu_about = create_menu_item(window, helpmenu, "About");
gtk_signal_connect(GTK_OBJECT(helpmenu_about), "activate",
GTK_SIGNAL_FUNC(xsteg_menu_about), helpmenu_about);
/* Box for scan type and sensitivity */
hbox = gtk_hbox_new(FALSE, 0);
gtk_widget_show(hbox);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 5);
frame = gtk_frame_new("Scan options");
gtk_widget_show(frame);
gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, FALSE, 2);
hbox_scans = gtk_hbox_new(FALSE, 0);
gtk_widget_show(hbox_scans);
gtk_container_add(GTK_CONTAINER(frame), hbox_scans);
fixed = gtk_fixed_new();
gtk_widget_show(fixed);
gtk_box_pack_start(GTK_BOX(hbox_scans), fixed, FALSE, FALSE, 0);
gtk_widget_set_usize(fixed, -2, -2);
eventbox = gtk_event_box_new();
gtk_widget_show(eventbox);
gtk_container_add(GTK_CONTAINER(fixed), eventbox);
vboxscans = gtk_vbox_new(TRUE, 0);
gtk_widget_show(vboxscans);
gtk_container_add(GTK_CONTAINER(eventbox), vboxscans);
button = create_scan_button(vboxscans, "jsteg");
if (scans & FLAG_DOJSTEG)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), 1);
button = create_scan_button(vboxscans, "jphide");
if (scans & FLAG_DOJPHIDE)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), 1);
button = create_scan_button(vboxscans, "outguess");
if (scans & FLAG_DOOUTGUESS)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), 1);
button = create_scan_button(vboxscans, "invisible");
if (scans & FLAG_DOINVIS)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), 1);
button = create_scan_button(vboxscans, "F5");
if (scans & FLAG_DOF5)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), 1);
gtk_tooltips_set_tip(GTK_TOOLTIPS(tips), eventbox,
"Adjust what schemes stegdetect should look for in images.",
NULL);
separator = gtk_vseparator_new();
gtk_widget_show(separator);
gtk_box_pack_start(GTK_BOX(hbox_scans), separator, FALSE, FALSE, 1);
/* Sensitivity label + entry text */