wireshark/gtk/file_dlg.c

/* file_dlg.c
 * Dialog boxes for handling files
 *
 * $Id$
 *
 * Ethereal - Network traffic analyzer
 * By Gerald Combs <gerald@ethereal.com>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <string.h>

#include <gtk/gtk.h>

#include "packet-range.h"
#include <epan/filesystem.h>

#include "globals.h"
#include "gtkglobals.h"
#include <epan/addr_resolv.h>
#include "keys.h"
#include "filter_dlg.h"
#include "ui_util.h"
#include "alert_box.h"
#include "simple_dialog.h"
#include "menu.h"
#include "dlg_utils.h"
#include "file_dlg.h"
#include "main.h"
#include "compat_macros.h"
#include <epan/prefs.h>
#include "recent.h"
#include "color.h"
#include "../ui_util.h"
#include "color_filters.h"
#include "gtk/color_dlg.h"
#ifdef HAVE_LIBPCAP
#include "capture_dlg.h"
#endif
#include "range_utils.h"
#include "merge.h"
#include "util.h"

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif

#ifdef HAVE_IO_H
#include <io.h> /* open/close on win32 */
#endif

static void file_open_ok_cb(GtkWidget *w, gpointer fs);
static void file_open_destroy_cb(GtkWidget *win, gpointer user_data);
static void file_merge_ok_cb(GtkWidget *w, gpointer fs);
static void file_merge_destroy_cb(GtkWidget *win, gpointer user_data);
static void select_file_type_cb(GtkWidget *w, gpointer data);
static void file_save_as_ok_cb(GtkWidget *w, gpointer fs);
static void file_save_as_destroy_cb(GtkWidget *win, gpointer user_data);
static void file_color_import_ok_cb(GtkWidget *w, gpointer fs);
static void file_color_import_destroy_cb(GtkWidget *win, gpointer user_data);
static void file_color_export_ok_cb(GtkWidget *w, gpointer fs);
static void file_color_export_destroy_cb(GtkWidget *win, gpointer user_data);
static void set_file_type_list(GtkWidget *option_menu);

#define E_FILE_M_RESOLVE_KEY	  "file_dlg_mac_resolve_key"
#define E_FILE_N_RESOLVE_KEY	  "file_dlg_network_resolve_key"
#define E_FILE_T_RESOLVE_KEY	  "file_dlg_transport_resolve_key"

#define E_MERGE_PREPEND_KEY 	  "merge_dlg_prepend_key"
#define E_MERGE_CHRONO_KEY 	      "merge_dlg_chrono_key"
#define E_MERGE_APPEND_KEY 	      "merge_dlg_append_key"

#define ARGUMENT_CL "argument_cl"


#define PREVIEW_TABLE_KEY       "preview_table_key"
#define PREVIEW_FILENAME_KEY    "preview_filename_key"
#define PREVIEW_FORMAT_KEY      "preview_format_key"
#define PREVIEW_SIZE_KEY        "preview_size_key"
#define PREVIEW_ELAPSED_KEY     "preview_elapsed_key"
#define PREVIEW_PACKETS_KEY     "preview_packets_key"
#define PREVIEW_FIRST_KEY       "preview_first_key"


/*
 * Keep a static pointer to the current "Save Capture File As" window, if
 * any, so that if somebody tries to do "File:Save" or "File:Save As"
 * while there's already a "Save Capture File As" window up, we just pop
 * up the existing one, rather than creating a new one.
 */
static GtkWidget *file_save_as_w;

/* XXX - can we make these not be static? */
static packet_range_t range;
static gboolean color_marked;
static int filetype;
static GtkWidget *cfmark_cb;
static GtkWidget *ft_om;
static GtkWidget *range_tb;

#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif

#define PREVIEW_STR_MAX         200

static double
secs_usecs( guint32 s, guint32 us)
{
  return (us / 1000000.0) + (double)s;
}


/* set a new filename for the preview widget */
static wtap *
preview_set_filename(GtkWidget *prev, const gchar *cf_name)
{
    GtkWidget  *label;
    wtap       *wth;
    int         err = 0;
    gchar      *err_info;
    struct stat cf_stat;
    gchar       string_buff[PREVIEW_STR_MAX];
    guint64     filesize;


    /* init preview labels */
    label = OBJECT_GET_DATA(prev, PREVIEW_FILENAME_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");
    label = OBJECT_GET_DATA(prev, PREVIEW_FORMAT_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");
    label = OBJECT_GET_DATA(prev, PREVIEW_SIZE_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");
    label = OBJECT_GET_DATA(prev, PREVIEW_ELAPSED_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");
    label = OBJECT_GET_DATA(prev, PREVIEW_PACKETS_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");
    label = OBJECT_GET_DATA(prev, PREVIEW_FIRST_KEY);
    gtk_label_set_text(GTK_LABEL(label), "-");

    if(!cf_name) {
        return NULL;
    }

    label = OBJECT_GET_DATA(prev, PREVIEW_FILENAME_KEY);
    gtk_label_set_text(GTK_LABEL(label), get_basename(cf_name));

    if (test_for_directory(cf_name) == EISDIR) {
        label = OBJECT_GET_DATA(prev, PREVIEW_FORMAT_KEY);
        gtk_label_set_text(GTK_LABEL(label), "directory");
        return NULL;
    }

    wth = wtap_open_offline(cf_name, &err, &err_info, TRUE);
    if (wth == NULL) {
        label = OBJECT_GET_DATA(prev, PREVIEW_FORMAT_KEY);
        if(err == WTAP_ERR_FILE_UNKNOWN_FORMAT) {
            gtk_label_set_text(GTK_LABEL(label), "unknown file format");
        } else {
            gtk_label_set_text(GTK_LABEL(label), "error opening file");
        }
        return NULL;
    }

    /* Find the size of the file. */
    if (fstat(wtap_fd(wth), &cf_stat) < 0) {
        wtap_close(wth);
        return NULL;
    }

    /* size */
    filesize = cf_stat.st_size;
    g_snprintf(string_buff, PREVIEW_STR_MAX, "%" PRIu64 " bytes", filesize);
    label = OBJECT_GET_DATA(prev, PREVIEW_SIZE_KEY);
    gtk_label_set_text(GTK_LABEL(label), string_buff);

    /* type */
    g_snprintf(string_buff, PREVIEW_STR_MAX, "%s", wtap_file_type_string(wtap_file_type(wth)));
    label = OBJECT_GET_DATA(prev, PREVIEW_FORMAT_KEY);
    gtk_label_set_text(GTK_LABEL(label), string_buff);

    return wth;
}


/* do a preview run on the currently selected capture file */
static void
preview_do(GtkWidget *prev, wtap *wth)
{
    GtkWidget  *label;
    unsigned int elapsed_time;
    time_t      time_preview;
    time_t      time_current;
    int         err = 0;
    gchar      *err_info;
    long        data_offset;
    const struct wtap_pkthdr *phdr;
    double      start_time = 0;	/* seconds, with msec resolution */
    double      stop_time = 0;	/* seconds, with msec resolution */
    double      cur_time;
    unsigned int packets = 0;
    gboolean    is_breaked = FALSE;
    gchar       string_buff[PREVIEW_STR_MAX];
    time_t      ti_time;
    struct tm  *ti_tm;


    time(&time_preview);
    while ( (wtap_read(wth, &err, &err_info, &data_offset)) ) {
        phdr = wtap_phdr(wth);        
        cur_time = secs_usecs(phdr->ts.tv_sec, phdr->ts.tv_usec);
        if(packets == 0) {
            start_time 	= cur_time;
            stop_time = cur_time;
        }
        if (cur_time < start_time) {
            start_time = cur_time;
        }
        if (cur_time > stop_time){
            stop_time = cur_time;
        }

        packets++;
        if(packets%1000) {
            /* do we have a timeout? */
            time(&time_current);
            if(time_current-time_preview >= (time_t) prefs.gui_fileopen_preview) {
                is_breaked = TRUE;
                break;
            }
        }
    }

    if(err != 0) {
        g_snprintf(string_buff, PREVIEW_STR_MAX, "error after reading %u packets", packets);
        label = OBJECT_GET_DATA(prev, PREVIEW_PACKETS_KEY);
        gtk_label_set_text(GTK_LABEL(label), string_buff);
        wtap_close(wth);
        return;
    }

    /* packet count */
    if(is_breaked) {
        g_snprintf(string_buff, PREVIEW_STR_MAX, "more than %u packets (preview timeout)", packets);
    } else {
        g_snprintf(string_buff, PREVIEW_STR_MAX, "%u", packets);
    }
    label = OBJECT_GET_DATA(prev, PREVIEW_PACKETS_KEY);
    gtk_label_set_text(GTK_LABEL(label), string_buff);

    /* first packet */
    ti_time = (long)start_time;
    ti_tm = localtime( &ti_time );
    g_snprintf(string_buff, PREVIEW_STR_MAX,
             "%04d-%02d-%02d %02d:%02d:%02d",
             ti_tm->tm_year + 1900,
             ti_tm->tm_mon + 1,
             ti_tm->tm_mday,
             ti_tm->tm_hour,
             ti_tm->tm_min,
             ti_tm->tm_sec);
    label = OBJECT_GET_DATA(prev, PREVIEW_FIRST_KEY);
    gtk_label_set_text(GTK_LABEL(label), string_buff);

    /* elapsed time */
    elapsed_time = (unsigned int)(stop_time-start_time);
    if(elapsed_time/86400) {
      g_snprintf(string_buff, PREVIEW_STR_MAX, "%02u days %02u:%02u:%02u", 
        elapsed_time/86400, elapsed_time%86400/3600, elapsed_time%3600/60, elapsed_time%60);
    } else {
      g_snprintf(string_buff, PREVIEW_STR_MAX, "%02u:%02u:%02u", 
        elapsed_time%86400/3600, elapsed_time%3600/60, elapsed_time%60);
    }
    if(is_breaked) {
      g_snprintf(string_buff, PREVIEW_STR_MAX, "unknown");
    }
    label = OBJECT_GET_DATA(prev, PREVIEW_ELAPSED_KEY);
    gtk_label_set_text(GTK_LABEL(label), string_buff);

    wtap_close(wth);
}

#if 0
/* as the dialog layout will look very ugly when using the file chooser preview mechanism,
   simply use the same layout as in GTK1 */
/* (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2 */
static void
update_preview_cb (GtkFileChooser *file_chooser, gpointer data)
{
    GtkWidget *prev = GTK_WIDGET (data);
    char *cf_name;
    gboolean have_preview;

    cf_name = gtk_file_chooser_get_preview_filename (file_chooser);

    have_preview = preview_set_filename(prev, cf_name);

    g_free (cf_name);

    have_preview = TRUE;
    gtk_file_chooser_set_preview_widget_active (file_chooser, have_preview);
}
#endif


/* the filename text entry changed */
static void
file_open_entry_changed(GtkWidget *w _U_, gpointer file_sel)
{
    GtkWidget *prev = OBJECT_GET_DATA(file_sel, PREVIEW_TABLE_KEY);
    const gchar* cf_name;
    gboolean have_preview;
    wtap       *wth;

    /* get the filename */
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
    cf_name = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(file_sel));
#else
    cf_name = gtk_file_selection_get_filename(GTK_FILE_SELECTION(file_sel));
#endif

    /* set the filename to the preview */
    wth = preview_set_filename(prev, cf_name);
    have_preview = (wth != NULL);

    /* make the preview widget sensitive */
    gtk_widget_set_sensitive(prev, have_preview);

    /* make the open/save/... dialog button sensitive */
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
    gtk_dialog_set_response_sensitive(file_sel, GTK_RESPONSE_ACCEPT, have_preview);
#else
    gtk_widget_set_sensitive(GTK_FILE_SELECTION(file_sel)->ok_button, have_preview);
#endif

    /* do the actual preview */
    if(have_preview)
        preview_do(prev, wth);
}


/* copied from summary_dlg.c */
static GtkWidget *
add_string_to_table_sensitive(GtkWidget *list, guint *row, gchar *title, gchar *value, gboolean sensitive)
{
    GtkWidget *label;
    gchar     *indent;

    if(strlen(value) != 0) {
        indent = g_strdup_printf("   %s", title);
    } else {
        indent = g_strdup(title);
    }
    label = gtk_label_new(indent);
    g_free(indent);
    gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
    gtk_widget_set_sensitive(label, sensitive);
    gtk_table_attach_defaults(GTK_TABLE(list), label, 0, 1, *row, *row+1);

    label = gtk_label_new(value);
    gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
    gtk_widget_set_sensitive(label, sensitive);
    gtk_table_attach_defaults(GTK_TABLE(list), label, 1, 2, *row, *row+1);

    *row = *row + 1;

    return label;
}

static GtkWidget *
add_string_to_table(GtkWidget *list, guint *row, gchar *title, gchar *value)
{
    return add_string_to_table_sensitive(list, row, title, value, TRUE);
}



static GtkWidget *
preview_new(void)
{
    GtkWidget *table, *label;
    guint         row;

    table = gtk_table_new(1, 2, FALSE);
    gtk_table_set_col_spacings(GTK_TABLE(table), 6);
    gtk_table_set_row_spacings(GTK_TABLE(table), 3);
    row = 0;

    label = add_string_to_table(table, &row, "Filename:", "-");
    WIDGET_SET_SIZE(label, DEF_WIDTH/3, -1);
    OBJECT_SET_DATA(table, PREVIEW_FILENAME_KEY, label);
    label = add_string_to_table(table, &row, "Format:", "-");
    OBJECT_SET_DATA(table, PREVIEW_FORMAT_KEY, label);
    label = add_string_to_table(table, &row, "Size:", "-");
    OBJECT_SET_DATA(table, PREVIEW_SIZE_KEY, label);
    label = add_string_to_table(table, &row, "Packets:", "-");
    OBJECT_SET_DATA(table, PREVIEW_PACKETS_KEY, label);
    label = add_string_to_table(table, &row, "First Packet:", "-");
    OBJECT_SET_DATA(table, PREVIEW_FIRST_KEY, label);
    label = add_string_to_table(table, &row, "Elapsed time:", "-");
    OBJECT_SET_DATA(table, PREVIEW_ELAPSED_KEY, label);

    return table;
}

/*
 * Keep a static pointer to the current "Open Capture File" window, if
 * any, so that if somebody tries to do "File:Open" while there's already
 * an "Open Capture File" window up, we just pop up the existing one,
 * rather than creating a new one.
 */
static GtkWidget *file_open_w;

/* Open a file */
void
file_open_cmd(GtkWidget *w)
{
  GtkWidget	*main_hb, *main_vb, *filter_hbox, *filter_bt, *filter_te,
  		*m_resolv_cb, *n_resolv_cb, *t_resolv_cb, *prev;
#if GTK_MAJOR_VERSION < 2
  GtkAccelGroup *accel_group;
#endif
  /* No Apply button, and "OK" just sets our text widget, it doesn't
     activate it (i.e., it doesn't cause us to try to open the file). */
  static construct_args_t args = {
  	"Ethereal: Read Filter",
  	FALSE,
  	FALSE
  };

  if (file_open_w != NULL) {
    /* There's already an "Open Capture File" dialog box; reactivate it. */
    reactivate_window(file_open_w);
    return;
  }

  file_open_w = file_selection_new("Ethereal: Open Capture File",
                                   FILE_SELECTION_OPEN);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  /* it's annoying, that the file chooser dialog is already shown here, 
     so we cannot use the correct gtk_window_set_default_size() to resize it */
  WIDGET_SET_SIZE(GTK_WINDOW(file_open_w), DEF_WIDTH, DEF_HEIGHT);
#else
  gtk_window_set_default_size(GTK_WINDOW(file_open_w), DEF_WIDTH, DEF_HEIGHT);
#endif

#if GTK_MAJOR_VERSION < 2
  /* Accelerator group for the accelerators (or, as they're called in
     Windows and, I think, in Motif, "mnemonics"; Alt+<key> is a mnemonic,
     Ctrl+<key> is an accelerator). */
  accel_group = gtk_accel_group_new();
  gtk_window_add_accel_group(GTK_WINDOW(file_open_w), accel_group);
#endif

  switch (prefs.gui_fileopen_style) {

  case FO_STYLE_LAST_OPENED:
    /* The user has specified that we should start out in the last directory
       we looked in.  If we've already opened a file, use its containing
       directory, if we could determine it, as the directory, otherwise
       use the "last opened" directory saved in the preferences file if
       there was one. */
    /* This is now the default behaviour in file_selection_new() */
    break;

  case FO_STYLE_SPECIFIED:
    /* The user has specified that we should always start out in a
       specified directory; if they've specified that directory,
       start out by showing the files in that dir. */
    if (prefs.gui_fileopen_dir[0] != '\0')
      file_selection_set_current_folder(file_open_w, prefs.gui_fileopen_dir);
    break;
  }

  
  main_hb = gtk_hbox_new(FALSE, 3);
  file_selection_set_extra_widget(file_open_w, main_hb);
  gtk_widget_show(main_hb);

  /* Container for each row of widgets */
  main_vb = gtk_vbox_new(FALSE, 3);
  gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
  gtk_box_pack_start(GTK_BOX(main_hb), main_vb, FALSE, FALSE, 0);
  gtk_widget_show(main_vb);

  /* filter row */
  filter_hbox = gtk_hbox_new(FALSE, 1);
  gtk_container_border_width(GTK_CONTAINER(filter_hbox), 0);
  gtk_box_pack_start(GTK_BOX(main_vb), filter_hbox, FALSE, FALSE, 0);
  gtk_widget_show(filter_hbox);

  filter_bt = BUTTON_NEW_FROM_STOCK(ETHEREAL_STOCK_DISPLAY_FILTER_ENTRY);
  SIGNAL_CONNECT(filter_bt, "clicked", display_filter_construct_cb, &args);
  SIGNAL_CONNECT(filter_bt, "destroy", filter_button_destroy_cb, NULL);
  gtk_box_pack_start(GTK_BOX(filter_hbox), filter_bt, FALSE, TRUE, 0);
  gtk_widget_show(filter_bt);

  filter_te = gtk_entry_new();
  OBJECT_SET_DATA(filter_bt, E_FILT_TE_PTR_KEY, filter_te);
  gtk_box_pack_start(GTK_BOX(filter_hbox), filter_te, TRUE, TRUE, 3);
  SIGNAL_CONNECT(filter_te, "changed", filter_te_syntax_check_cb, NULL);
  gtk_widget_show(filter_te);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_open_w, E_RFILTER_TE_KEY, filter_te);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_open_w)->ok_button,
                  E_RFILTER_TE_KEY, filter_te);
#endif

  /* resolve buttons */
  m_resolv_cb = CHECK_BUTTON_NEW_WITH_MNEMONIC("Enable _MAC name resolution", accel_group);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(m_resolv_cb),
	g_resolv_flags & RESOLV_MAC);
  gtk_box_pack_start(GTK_BOX(main_vb), m_resolv_cb, FALSE, FALSE, 0);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_open_w,
                  E_FILE_M_RESOLVE_KEY, m_resolv_cb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_open_w)->ok_button,
                  E_FILE_M_RESOLVE_KEY, m_resolv_cb);
#endif
  gtk_widget_show(m_resolv_cb);

  n_resolv_cb = CHECK_BUTTON_NEW_WITH_MNEMONIC("Enable _network name resolution", accel_group);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(n_resolv_cb),
	g_resolv_flags & RESOLV_NETWORK);
  gtk_box_pack_start(GTK_BOX(main_vb), n_resolv_cb, FALSE, FALSE, 0);
  gtk_widget_show(n_resolv_cb);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_open_w, E_FILE_N_RESOLVE_KEY, n_resolv_cb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_open_w)->ok_button,
		  E_FILE_N_RESOLVE_KEY, n_resolv_cb);
#endif

  t_resolv_cb = CHECK_BUTTON_NEW_WITH_MNEMONIC("Enable _transport name resolution", accel_group);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(t_resolv_cb),
	g_resolv_flags & RESOLV_TRANSPORT);
  gtk_box_pack_start(GTK_BOX(main_vb), t_resolv_cb, FALSE, FALSE, 0);
  gtk_widget_show(t_resolv_cb);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_open_w, E_FILE_T_RESOLVE_KEY, t_resolv_cb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_open_w)->ok_button,
		  E_FILE_T_RESOLVE_KEY, t_resolv_cb);
#endif


  SIGNAL_CONNECT(file_open_w, "destroy", file_open_destroy_cb, NULL);

  /* preview widget */
  prev = preview_new();
  OBJECT_SET_DATA(file_open_w, PREVIEW_TABLE_KEY, prev);
  gtk_widget_show_all(prev);
  gtk_box_pack_start(GTK_BOX(main_hb), prev, TRUE, TRUE, 0);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  SIGNAL_CONNECT(GTK_FILE_CHOOSER(file_open_w), "selection-changed", 
      file_open_entry_changed, file_open_w);
  file_open_entry_changed(file_open_w, file_open_w);

  OBJECT_SET_DATA(file_open_w, E_DFILTER_TE_KEY,
                  OBJECT_GET_DATA(w, E_DFILTER_TE_KEY));
  if (gtk_dialog_run(GTK_DIALOG(file_open_w)) == GTK_RESPONSE_ACCEPT)
  {
    file_open_ok_cb(file_open_w, file_open_w);
  }
  else window_destroy(file_open_w);
#else
  SIGNAL_CONNECT(GTK_FILE_SELECTION(file_open_w)->selection_entry, "changed", 
      file_open_entry_changed, file_open_w);

  /* Connect the ok_button to file_open_ok_cb function and pass along a
     pointer to the file selection box widget */
  SIGNAL_CONNECT(GTK_FILE_SELECTION(file_open_w)->ok_button, "clicked",
                 file_open_ok_cb, file_open_w);

  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_open_w)->ok_button,
                  E_DFILTER_TE_KEY, OBJECT_GET_DATA(w, E_DFILTER_TE_KEY));

  /* Connect the cancel_button to destroy the widget */
  window_set_cancel_button(file_open_w, 
      GTK_FILE_SELECTION(file_open_w)->cancel_button, window_cancel_button_cb);

  SIGNAL_CONNECT(file_open_w, "delete_event", window_delete_event_cb, NULL);

  gtk_widget_show(file_open_w);
  window_present(file_open_w);
#endif
}

static void file_open_answered_cb(gpointer dialog _U_, gint btn, gpointer data _U_)
{
    switch(btn) {
    case(ESD_BTN_SAVE):
        /* save file first */
        file_save_as_cmd(after_save_open_dialog, data);
        break;
    case(ESD_BTN_DONT_SAVE):
        cf_close(&cfile);
        file_open_cmd(data);
        break;
    case(ESD_BTN_CANCEL):
        break;
    default:
        g_assert_not_reached();
    }
}

void
file_open_cmd_cb(GtkWidget *widget, gpointer data _U_) {
  gpointer  dialog;

  if((cfile.state != FILE_CLOSED) && !cfile.user_saved && prefs.gui_ask_unsaved) {
    /* user didn't saved his current file, ask him */
    dialog = simple_dialog(ESD_TYPE_CONFIRMATION, ESD_BTNS_SAVE_DONTSAVE_CANCEL,
                PRIMARY_TEXT_START "Save capture file before opening a new one?" PRIMARY_TEXT_END "\n\n"
                "If you open a new capture file without saving, your capture data will be discarded.");
    simple_dialog_set_cb(dialog, file_open_answered_cb, widget);
  } else {
    /* unchanged file, just open a new one */
    file_open_cmd(widget);
  }
}

/* user pressed "open" button */
static void
file_open_ok_cb(GtkWidget *w, gpointer fs) {
  gchar       *cf_name, *s;
  const gchar *rfilter;
  GtkWidget   *filter_te, *m_resolv_cb, *n_resolv_cb, *t_resolv_cb;
  dfilter_t   *rfcode = NULL;
  int          err;

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  cf_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
  cf_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif
  filter_te = OBJECT_GET_DATA(w, E_RFILTER_TE_KEY);
  rfilter = gtk_entry_get_text(GTK_ENTRY(filter_te));
  if (!dfilter_compile(rfilter, &rfcode)) {
    bad_dfilter_alert_box(rfilter);
    g_free(cf_name);
    return;
  }

  /* Perhaps the user specified a directory instead of a file.
     Check whether they did. */
  if (test_for_directory(cf_name) == EISDIR) {
	/* It's a directory - set the file selection box to display that
	   directory, don't try to open the directory as a capture file. */
        set_last_open_dir(cf_name);
        g_free(cf_name);
        file_selection_set_current_folder(fs, get_last_open_dir());
    	return;
  }

  /* Try to open the capture file. */
  if (cf_open(&cfile, cf_name, FALSE, &err) != CF_OK) {
    /* We couldn't open it; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the open error,
       try again. */
    if (rfcode != NULL)
      dfilter_free(rfcode);
    g_free(cf_name);
    return;
  }

  /* Attach the new read filter to "cf" ("cf_open()" succeeded, so
     it closed the previous capture file, and thus destroyed any
     previous read filter attached to "cf"). */
  cfile.rfcode = rfcode;

  /* Set the global resolving variable */
  g_resolv_flags = prefs.name_resolve;
  m_resolv_cb = OBJECT_GET_DATA(w, E_FILE_M_RESOLVE_KEY);
  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (m_resolv_cb)))
    g_resolv_flags |= RESOLV_MAC;
  else
    g_resolv_flags &= ~RESOLV_MAC;
  n_resolv_cb = OBJECT_GET_DATA(w, E_FILE_N_RESOLVE_KEY);
  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (n_resolv_cb)))
    g_resolv_flags |= RESOLV_NETWORK;
  else
    g_resolv_flags &= ~RESOLV_NETWORK;
  t_resolv_cb = OBJECT_GET_DATA(w, E_FILE_T_RESOLVE_KEY);
  if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (t_resolv_cb)))
    g_resolv_flags |= RESOLV_TRANSPORT;
  else
    g_resolv_flags &= ~RESOLV_TRANSPORT;

  /* We've crossed the Rubicon; get rid of the file selection box. */
  window_destroy(GTK_WIDGET (fs));

  switch (cf_read(&cfile)) {

  case CF_READ_OK:
  case CF_READ_ERROR:
    /* Just because we got an error, that doesn't mean we were unable
       to read any of the file; we handle what we could get from the
       file. */
    break;

  case CF_READ_ABORTED:
    /* The user bailed out of re-reading the capture file; the
       capture file has been closed - just free the capture file name
       string and return (without changing the last containing
       directory). */
    g_free(cf_name);
    return;
  }

  /* Save the name of the containing directory specified in the path name,
     if any; we can write over cf_name, which is a good thing, given that
     "get_dirname()" does write over its argument. */
  s = get_dirname(cf_name);
  set_last_open_dir(s);
  gtk_widget_grab_focus(packet_list);

  g_free(cf_name);
}

static void
file_open_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  /* Note that we no longer have a "Open Capture File" dialog box. */
  file_open_w = NULL;
}

/*
 * Keep a static pointer to the current "Merge Capture File" window, if
 * any, so that if somebody tries to do "File:Merge" while there's already
 * an "Merge Capture File" window up, we just pop up the existing one,
 * rather than creating a new one.
 */
static GtkWidget *file_merge_w;

/* Merge existing with another file */
void
file_merge_cmd(GtkWidget *w)
{
  GtkWidget	*main_hb, *main_vb, *ft_hb, *ft_lb, *filter_hbox,
		*filter_bt, *filter_te, *prepend_rb, *chrono_rb,
		*append_rb, *prev;
#if GTK_MAJOR_VERSION < 2
  GtkAccelGroup *accel_group;
#endif
  GtkTooltips *tooltips = gtk_tooltips_new();
  /* No Apply button, and "OK" just sets our text widget, it doesn't
     activate it (i.e., it doesn't cause us to try to open the file). */
  static construct_args_t args = {
  	"Ethereal: Read Filter",
  	FALSE,
  	FALSE
  };

  if (file_merge_w != NULL) {
    /* There's already an "Merge Capture File" dialog box; reactivate it. */
    reactivate_window(file_merge_w);
    return;
  }

  /* Default to saving all packets, in the file's current format. */
  filetype = cfile.cd_t;

  file_merge_w = file_selection_new("Ethereal: Merge with Capture File",
                                   FILE_SELECTION_OPEN);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  /* it's annoying, that the file chooser dialog is already shown here, 
     so we cannot use the correct gtk_window_set_default_size() to resize it */
  WIDGET_SET_SIZE(GTK_WINDOW(file_merge_w), DEF_WIDTH, DEF_HEIGHT);
#else
  gtk_window_set_default_size(GTK_WINDOW(file_merge_w), DEF_WIDTH, DEF_HEIGHT);
#endif

#if GTK_MAJOR_VERSION < 2
  /* Accelerator group for the accelerators (or, as they're called in
     Windows and, I think, in Motif, "mnemonics"; Alt+<key> is a mnemonic,
     Ctrl+<key> is an accelerator). */
  accel_group = gtk_accel_group_new();
  gtk_window_add_accel_group(GTK_WINDOW(file_merge_w), accel_group);
#endif

  switch (prefs.gui_fileopen_style) {

  case FO_STYLE_LAST_OPENED:
    /* The user has specified that we should start out in the last directory
       we looked in.  If we've already opened a file, use its containing
       directory, if we could determine it, as the directory, otherwise
       use the "last opened" directory saved in the preferences file if
       there was one. */
    /* This is now the default behaviour in file_selection_new() */
    break;

  case FO_STYLE_SPECIFIED:
    /* The user has specified that we should always start out in a
       specified directory; if they've specified that directory,
       start out by showing the files in that dir. */
    if (prefs.gui_fileopen_dir[0] != '\0')
      file_selection_set_current_folder(file_merge_w, prefs.gui_fileopen_dir);
    break;
  }
    
  main_hb = gtk_hbox_new(FALSE, 3);
  file_selection_set_extra_widget(file_merge_w, main_hb);
  gtk_widget_show(main_hb);

  /* Container for each row of widgets */
  main_vb = gtk_vbox_new(FALSE, 3);
  gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
  gtk_box_pack_start(GTK_BOX(main_hb), main_vb, FALSE, FALSE, 0);
  gtk_widget_show(main_vb);

  /* File type row */
  range_tb = NULL;
  ft_hb = gtk_hbox_new(FALSE, 3);
  gtk_container_add(GTK_CONTAINER(main_vb), ft_hb);
  gtk_widget_show(ft_hb);

  ft_lb = gtk_label_new("Merged output file type:");
  gtk_box_pack_start(GTK_BOX(ft_hb), ft_lb, FALSE, FALSE, 0);
  gtk_widget_show(ft_lb);

  ft_om = gtk_option_menu_new();

  /* Generate the list of file types we can save. */
  set_file_type_list(ft_om);
  gtk_box_pack_start(GTK_BOX(ft_hb), ft_om, FALSE, FALSE, 0);
  gtk_widget_show(ft_om);

  filter_hbox = gtk_hbox_new(FALSE, 1);
  gtk_container_border_width(GTK_CONTAINER(filter_hbox), 0);
  gtk_box_pack_start(GTK_BOX(main_vb), filter_hbox, FALSE, FALSE, 0);
  gtk_widget_show(filter_hbox);

  filter_bt = BUTTON_NEW_FROM_STOCK(ETHEREAL_STOCK_DISPLAY_FILTER_ENTRY);
  SIGNAL_CONNECT(filter_bt, "clicked", display_filter_construct_cb, &args);
  SIGNAL_CONNECT(filter_bt, "destroy", filter_button_destroy_cb, NULL);
  gtk_box_pack_start(GTK_BOX(filter_hbox), filter_bt, FALSE, TRUE, 0);
  gtk_widget_show(filter_bt);

  filter_te = gtk_entry_new();
  OBJECT_SET_DATA(filter_bt, E_FILT_TE_PTR_KEY, filter_te);
  gtk_box_pack_start(GTK_BOX(filter_hbox), filter_te, TRUE, TRUE, 3);
  SIGNAL_CONNECT(filter_te, "changed", filter_te_syntax_check_cb, NULL);
  gtk_widget_show(filter_te);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_merge_w, E_RFILTER_TE_KEY, filter_te);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_merge_w)->ok_button,
                  E_RFILTER_TE_KEY, filter_te);
#endif

  prepend_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(NULL, "Prepend packets to existing file", accel_group);
  gtk_tooltips_set_tip(tooltips, prepend_rb, 
      "The resulting file contains the packets from the selected, followed by the packets from the currently loaded file,"
      " the packet timestamps will be ignored.", NULL);
  gtk_box_pack_start(GTK_BOX(main_vb), prepend_rb, FALSE, FALSE, 0);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_merge_w,
                  E_MERGE_PREPEND_KEY, prepend_rb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_merge_w)->ok_button,
                  E_MERGE_PREPEND_KEY, prepend_rb);
#endif
  gtk_widget_show(prepend_rb);

  chrono_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(prepend_rb, "Merge packets chronologically", accel_group);
  gtk_tooltips_set_tip(tooltips, chrono_rb, 
      "The resulting file contains all the packets from the currently loaded and the selected file,"
      " sorted by the packet timestamps.", NULL);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(chrono_rb), TRUE);
  gtk_box_pack_start(GTK_BOX(main_vb), chrono_rb, FALSE, FALSE, 0);
  gtk_widget_show(chrono_rb);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_merge_w, E_MERGE_CHRONO_KEY, chrono_rb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_merge_w)->ok_button,
		  E_MERGE_CHRONO_KEY, chrono_rb);
#endif

  append_rb = RADIO_BUTTON_NEW_WITH_MNEMONIC(prepend_rb, "Append packets to existing file", accel_group);
  gtk_tooltips_set_tip(tooltips, append_rb, 
      "The resulting file contains the packets from the currently loaded, followed by the packets from the selected file,"
      " the packet timestamps will be ignored.", NULL);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(append_rb),
	g_resolv_flags & RESOLV_TRANSPORT);
  gtk_box_pack_start(GTK_BOX(main_vb), append_rb, FALSE, FALSE, 0);
  gtk_widget_show(append_rb);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_merge_w, E_MERGE_APPEND_KEY, append_rb);
#else
  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_merge_w)->ok_button,
		  E_MERGE_APPEND_KEY, append_rb);
#endif


  SIGNAL_CONNECT(file_merge_w, "destroy", file_merge_destroy_cb, NULL);

  /* preview widget */
  prev = preview_new();
  OBJECT_SET_DATA(file_merge_w, PREVIEW_TABLE_KEY, prev);
  gtk_widget_show_all(prev);
  gtk_box_pack_start(GTK_BOX(main_hb), prev, TRUE, TRUE, 0);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  SIGNAL_CONNECT(GTK_FILE_CHOOSER(file_merge_w), "selection-changed", 
      file_open_entry_changed, file_merge_w);
  file_open_entry_changed(file_merge_w, file_merge_w);

  OBJECT_SET_DATA(file_merge_w, E_DFILTER_TE_KEY,
                  OBJECT_GET_DATA(w, E_DFILTER_TE_KEY));
  if (gtk_dialog_run(GTK_DIALOG(file_merge_w)) == GTK_RESPONSE_ACCEPT)
  {
    file_merge_ok_cb(file_merge_w, file_merge_w);
  }
  else window_destroy(file_merge_w);
#else
  SIGNAL_CONNECT(GTK_FILE_SELECTION(file_merge_w)->selection_entry, "changed", 
      file_open_entry_changed, file_merge_w);

  /* Connect the ok_button to file_merge_ok_cb function and pass along a
     pointer to the file selection box widget */
  SIGNAL_CONNECT(GTK_FILE_SELECTION(file_merge_w)->ok_button, "clicked",
                 file_merge_ok_cb, file_merge_w);

  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_merge_w)->ok_button,
                  E_DFILTER_TE_KEY, OBJECT_GET_DATA(w, E_DFILTER_TE_KEY));

  /* Connect the cancel_button to destroy the widget */
  window_set_cancel_button(file_merge_w, 
      GTK_FILE_SELECTION(file_merge_w)->cancel_button, window_cancel_button_cb);

  SIGNAL_CONNECT(file_merge_w, "delete_event", window_delete_event_cb, NULL);

  gtk_widget_show(file_merge_w);
  window_present(file_merge_w);
#endif
}

static void file_merge_answered_cb(gpointer dialog _U_, gint btn, gpointer data _U_)
{
    switch(btn) {
    case(ESD_BTN_OK):
        /* save file first */
        file_save_as_cmd(after_save_merge_dialog, data);
        break;
    case(ESD_BTN_CANCEL):
        break;
    default:
        g_assert_not_reached();
    }
}

void
file_merge_cmd_cb(GtkWidget *widget, gpointer data _U_) {
  gpointer  dialog;

  if((cfile.state != FILE_CLOSED) && !cfile.user_saved && prefs.gui_ask_unsaved) {
    /* user didn't saved his current file, ask him */
    dialog = simple_dialog(ESD_TYPE_CONFIRMATION, ESD_BTNS_OK_CANCEL,
                PRIMARY_TEXT_START "Save the capture file before merging to another one?" PRIMARY_TEXT_END "\n\n"
                "A temporary capture file can't be merged.");
    simple_dialog_set_cb(dialog, file_merge_answered_cb, widget);
  } else {
    /* unchanged file, just start to merge */
    file_merge_cmd(widget);
  }
}


static void
file_merge_ok_cb(GtkWidget *w, gpointer fs) {
  gchar       *cf_name, *s;
  const gchar *rfilter;
  GtkWidget   *filter_te, *rb;
  dfilter_t   *rfcode = NULL;
  int          err;
  cf_status_t  merge_status;
  char        *in_filenames[2];
  char        *tmpname;

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  cf_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
  cf_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif
  filter_te = OBJECT_GET_DATA(w, E_RFILTER_TE_KEY);
  rfilter = gtk_entry_get_text(GTK_ENTRY(filter_te));
  if (!dfilter_compile(rfilter, &rfcode)) {
    bad_dfilter_alert_box(rfilter);
    g_free(cf_name);
    return;
  }

  /* Perhaps the user specified a directory instead of a file.
     Check whether they did. */
  if (test_for_directory(cf_name) == EISDIR) {
	/* It's a directory - set the file selection box to display that
	   directory, don't try to open the directory as a capture file. */
        set_last_open_dir(cf_name);
        g_free(cf_name);
        file_selection_set_current_folder(fs, get_last_open_dir());
    	return;
  }

  /* merge or append the two files */
  rb = OBJECT_GET_DATA(w, E_MERGE_CHRONO_KEY);
  tmpname = NULL;
  if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (rb))) {
      /* chronological order */
      in_filenames[0] = cfile.filename;
      in_filenames[1] = cf_name;
      merge_status = cf_merge_files(&tmpname, 2, in_filenames, filetype, FALSE);
  } else {
      rb = OBJECT_GET_DATA(w, E_MERGE_PREPEND_KEY);
      if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (rb))) {
          /* prepend file */
          in_filenames[0] = cfile.filename;
          in_filenames[1] = cf_name;
          merge_status = cf_merge_files(&tmpname, 2, in_filenames, filetype,
                                        TRUE);
      } else {
          /* append file */
          in_filenames[0] = cf_name;
          in_filenames[1] = cfile.filename;
          merge_status = cf_merge_files(&tmpname, 2, in_filenames, filetype,
                                        TRUE);
      }
  }

  g_free(cf_name);
  
  if (merge_status != CF_OK) {
    if (rfcode != NULL)
      dfilter_free(rfcode);
    g_free(tmpname);
    return;
  }

  cf_close(&cfile);

  /* We've crossed the Rubicon; get rid of the file selection box. */
  window_destroy(GTK_WIDGET (fs));

  /* Try to open the merged capture file. */
  if (cf_open(&cfile, tmpname, TRUE /* temporary file */, &err) != CF_OK) {
    /* We couldn't open it; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the open error,
       try again. */
    if (rfcode != NULL)
      dfilter_free(rfcode);
    g_free(tmpname);
    return;
  }
  g_free(tmpname);

  /* Attach the new read filter to "cf" ("cf_open()" succeeded, so
     it closed the previous capture file, and thus destroyed any
     previous read filter attached to "cf"). */
  cfile.rfcode = rfcode;

  switch (cf_read(&cfile)) {

  case CF_READ_OK:
  case CF_READ_ERROR:
    /* Just because we got an error, that doesn't mean we were unable
       to read any of the file; we handle what we could get from the
       file. */
    break;

  case CF_READ_ABORTED:
    /* The user bailed out of re-reading the capture file; the
       capture file has been closed - just free the capture file name
       string and return (without changing the last containing
       directory). */
    return;
  }

  /* Save the name of the containing directory specified in the path name,
     if any; we can write over cf_merged_name, which is a good thing, given that
     "get_dirname()" does write over its argument. */
  s = get_dirname(tmpname);
  set_last_open_dir(s);
  gtk_widget_grab_focus(packet_list);
}

static void
file_merge_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  /* Note that we no longer have a "Merge Capture File" dialog box. */
  file_merge_w = NULL;
}


void file_close_answered_cb(gpointer dialog _U_, gint btn, gpointer data _U_)
{
    switch(btn) {
    case(ESD_BTN_SAVE):
        /* save file first */
        file_save_as_cmd(after_save_close_file, NULL);
        break;
    case(ESD_BTN_DONT_SAVE):
        cf_close(&cfile);
        break;
    case(ESD_BTN_CANCEL):
        break;
    default:
        g_assert_not_reached();
    }
}

/* Close a file */
void
file_close_cmd_cb(GtkWidget *widget _U_, gpointer data _U_) {
  gpointer  dialog;

  if((cfile.state != FILE_CLOSED) && !cfile.user_saved && prefs.gui_ask_unsaved) {
    /* user didn't saved his current file, ask him */
    dialog = simple_dialog(ESD_TYPE_CONFIRMATION, ESD_BTNS_SAVE_DONTSAVE_CANCEL,
                PRIMARY_TEXT_START "Save capture file before closing it?" PRIMARY_TEXT_END "\n\n"
                "If you close without saving, your capture data will be discarded.");

    simple_dialog_set_cb(dialog, file_close_answered_cb, NULL);
  } else {
    /* unchanged file, just close it */
    cf_close(&cfile);
  }
}

void
file_save_cmd_cb(GtkWidget *w, gpointer data) {
  /* If the file's already been saved, do nothing.  */
  if (cfile.user_saved)
    return;

  /* Do a "Save As". */
  file_save_as_cmd_cb(w, data);
}

static gboolean
can_save_with_wiretap(int ft)
{
  /* To save a file with Wiretap, Wiretap has to handle that format,
     and its code to handle that format must be able to write a file
     with this file's encapsulation type. */
  return wtap_dump_can_open(ft) && wtap_dump_can_write_encap(ft, cfile.lnk_t);
}


/* Generate a list of the file types we can save this file as.

   "filetype" is the type it has now.

   "encap" is the encapsulation for its packets (which could be
   "unknown" or "per-packet").

   "filtered" is TRUE if we're to save only the packets that passed
   the display filter (in which case we have to save it using Wiretap)
   and FALSE if we're to save the entire file (in which case, if we're
   saving it in the type it has already, we can just copy it).

   The same applies for sel_curr, sel_all, sel_m_only, sel_m_range and sel_man_range
*/
static void
set_file_type_list(GtkWidget *option_menu)
{
  GtkWidget *ft_menu, *ft_menu_item;
  int ft;
  guint index;
  guint item_to_select;

  /* Default to the first supported file type, if the file's current
     type isn't supported. */
  item_to_select = 0;

  ft_menu = gtk_menu_new();

  /* Check all file types. */
  index = 0;
  for (ft = 0; ft < WTAP_NUM_FILE_TYPES; ft++) {
    if (!packet_range_process_all(&range) || ft != cfile.cd_t) {
      /* not all unfiltered packets or a different file type.  We have to use Wiretap. */
      if (!can_save_with_wiretap(ft))
        continue;	/* We can't. */
    }

    /* OK, we can write it out in this type. */
    ft_menu_item = gtk_menu_item_new_with_label(wtap_file_type_string(ft));
    if (ft == filetype) {
      /* Default to the same format as the file, if it's supported. */
      item_to_select = index;
    }
    SIGNAL_CONNECT(ft_menu_item, "activate", select_file_type_cb,
                   GINT_TO_POINTER(ft));
    gtk_menu_append(GTK_MENU(ft_menu), ft_menu_item);
    gtk_widget_show(ft_menu_item);
    index++;
  }

  gtk_option_menu_set_menu(GTK_OPTION_MENU(option_menu), ft_menu);
  gtk_option_menu_set_history(GTK_OPTION_MENU(option_menu), item_to_select);
}

static void
select_file_type_cb(GtkWidget *w _U_, gpointer data)
{
  int new_filetype = GPOINTER_TO_INT(data);

  if (filetype != new_filetype) {
    /* We can select only the filtered or marked packets to be saved if we can
       use Wiretap to save the file. */
    if (range_tb != NULL)
       range_set_displayed_sensitive(range_tb, can_save_with_wiretap(new_filetype));
    filetype = new_filetype;
    file_set_save_marked_sensitive();
  }
}


/*
 * Set the "Save only marked packets" toggle button as appropriate for
 * the current output file type and count of marked packets.
 *
 * Called when the "Save As..." dialog box is created and when either
 * the file type or the marked count changes.
 */
void
file_set_save_marked_sensitive(void)
{
  if (file_save_as_w == NULL) {
    /* We don't currently have a "Save As..." dialog box up. */
    return;
  }
	
  /* We can request that only the marked packets be saved only if we
     can use Wiretap to save the file and if there *are* marked packets. */
  if (can_save_with_wiretap(filetype) && cfile.marked_count > 0) {
    range_set_marked_sensitive(range_tb, TRUE);
  }
  else {
    /* Force the "Save only marked packets" toggle to "false", turn
       off the flag it controls, and update the list of types we can
       save the file as. */
    range.process = range_process_all;
    set_file_type_list(ft_om);
    range_set_marked_sensitive(range_tb, FALSE);
  }
}


action_after_save_e action_after_save_g;
gpointer            action_after_save_data_g;


void
file_save_as_cmd(action_after_save_e action_after_save, gpointer action_after_save_data)
{
  GtkWidget     *main_vb, *ft_hb, *ft_lb, *range_fr;
  GtkTooltips   *tooltips;

#if GTK_MAJOR_VERSION < 2
  GtkAccelGroup *accel_group;
#endif
	  
  if (file_save_as_w != NULL) {
    /* There's already an "Save Capture File As" dialog box; reactivate it. */
    reactivate_window(file_save_as_w);
    return;
  }

  /* Default to saving all packets, in the file's current format. */
  filetype = cfile.cd_t;

  /* init the packet range */
  packet_range_init(&range);

  /* Enable tooltips */
  tooltips = gtk_tooltips_new();
	  
  /* build the file selection */
  file_save_as_w = file_selection_new ("Ethereal: Save Capture File As",
                                       FILE_SELECTION_SAVE);

  /* as the dialog might already be gone, when using this values, we cannot
   * set data to the dialog object, but keep global values */
  action_after_save_g       = action_after_save;
  action_after_save_data_g  = action_after_save_data;

#if GTK_MAJOR_VERSION < 2
  accel_group = gtk_accel_group_new();
  gtk_window_add_accel_group(GTK_WINDOW(file_save_as_w), accel_group);
#endif
	
  /* Container for each row of widgets */
       
  main_vb = gtk_vbox_new(FALSE, 5);
  gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
  file_selection_set_extra_widget(file_save_as_w, main_vb);
  gtk_widget_show(main_vb);	
		
  /*** Packet Range frame ***/
  range_fr = gtk_frame_new("Packet Range");
  gtk_box_pack_start(GTK_BOX(main_vb), range_fr, FALSE, FALSE, 0);
  gtk_widget_show(range_fr);
  
  /* range table */
  range_tb = range_new(&range
#if GTK_MAJOR_VERSION < 2
  , accel_group
#endif
  );
  gtk_container_add(GTK_CONTAINER(range_fr), range_tb);
  gtk_widget_show(range_tb);

  /* File type row */
  ft_hb = gtk_hbox_new(FALSE, 3);
  gtk_container_add(GTK_CONTAINER(main_vb), ft_hb);
  gtk_widget_show(ft_hb);

  ft_lb = gtk_label_new("File type:");
  gtk_box_pack_start(GTK_BOX(ft_hb), ft_lb, FALSE, FALSE, 0);
  gtk_widget_show(ft_lb);

  ft_om = gtk_option_menu_new();

  /* Generate the list of file types we can save. */
  set_file_type_list(ft_om);
  gtk_box_pack_start(GTK_BOX(ft_hb), ft_om, FALSE, FALSE, 0);
  gtk_widget_show(ft_om);

  /*
   * Set the sensitivity of the "Save only marked packets" toggle
   * button
   *
   * This has to be done after we create the file type menu option,
   * as the routine that sets it also sets that menu.
   */
  file_set_save_marked_sensitive();
	
  /* dynamic values in the range frame */
  range_update_dynamics(range_tb);

  SIGNAL_CONNECT(file_save_as_w, "destroy", file_save_as_destroy_cb, NULL);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  if (gtk_dialog_run(GTK_DIALOG(file_save_as_w)) == GTK_RESPONSE_ACCEPT) {
    file_save_as_ok_cb(file_save_as_w, file_save_as_w);
  } else {
    window_destroy(file_save_as_w);
  }
#else
  /* Connect the ok_button to file_save_as_ok_cb function and pass along a
     pointer to the file selection box widget */
  SIGNAL_CONNECT(GTK_FILE_SELECTION (file_save_as_w)->ok_button, "clicked",
                 file_save_as_ok_cb, file_save_as_w);

  window_set_cancel_button(file_save_as_w, 
      GTK_FILE_SELECTION(file_save_as_w)->cancel_button, window_cancel_button_cb);

  SIGNAL_CONNECT(file_save_as_w, "delete_event", window_delete_event_cb, NULL);

  gtk_widget_show(file_save_as_w);
  window_present(file_save_as_w);
#endif
}

void
file_save_as_cmd_cb(GtkWidget *w _U_, gpointer data _U_)
{
  file_save_as_cmd(after_save_no_action, NULL);
}

static void
file_save_as_ok_cb(GtkWidget *w _U_, gpointer fs) {
  gchar	*cf_name;
  gchar	*dirname;

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  cf_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
  cf_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif

  /* Perhaps the user specified a directory instead of a file.
     Check whether they did. */
  if (test_for_directory(cf_name) == EISDIR) {
        /* It's a directory - set the file selection box to display that
           directory, and leave the selection box displayed. */
        set_last_open_dir(cf_name);
        g_free(cf_name);
        file_selection_set_current_folder(fs, get_last_open_dir());
        return;
  }

  /* Check whether the range is valid. */
  if (!range_check_validity(&range)) {
    /* The range isn't valid; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the error, try again. */
    g_free(cf_name);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
    /* XXX - as we cannot start a new event loop (using gtk_dialog_run()),
     * as this will prevent the user from closing the now existing error
     * message, simply close the dialog (this is the best we can do here). */
    if (file_save_as_w)
      window_destroy(GTK_WIDGET (fs));
#else
    gtk_widget_show(GTK_WIDGET (fs));
#endif
    return;
  }

  /* don't show the dialog while saving */
  gtk_widget_hide(GTK_WIDGET (fs));

  /* Write out the packets (all, or only the ones from the current
     range) to the file with the specified name. */
  if (cf_save(&cfile, cf_name, &range, filetype) != CF_OK) {
    /* The write failed; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the error, try again. */
    g_free(cf_name);
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
    /* XXX - as we cannot start a new event loop (using gtk_dialog_run()),
     * as this will prevent the user from closing the now existing error
     * message, simply close the dialog (this is the best we can do here). */
    if (file_save_as_w)
      window_destroy(GTK_WIDGET (fs));
#else
    gtk_widget_show(GTK_WIDGET (fs));
#endif
    return;
  }

  /* The write succeeded; get rid of the file selection box. */
  /* cf_save() might already closed our dialog! */
  if (file_save_as_w)
    window_destroy(GTK_WIDGET (fs));

  /* Save the directory name for future file dialogs. */
  dirname = get_dirname(cf_name);  /* Overwrites cf_name */
  set_last_open_dir(dirname);
  g_free(cf_name);

  /* we have finished saving, do we have pending things to do? */
  switch(action_after_save_g) {
  case(after_save_no_action):
      break;
  case(after_save_open_dialog):
      file_open_cmd(action_after_save_data_g);
      break;
  case(after_save_open_recent_file):
      menu_open_recent_file_cmd(action_after_save_data_g);
      break;
  case(after_save_open_dnd_file):
      dnd_open_file_cmd(action_after_save_data_g);
      break;
  case(after_save_merge_dialog):
      file_merge_cmd(action_after_save_data_g);
      break;
#ifdef HAVE_LIBPCAP
  case(after_save_capture_dialog):
      capture_prep();
      break;
#endif
  case(after_save_close_file):
      cf_close(&cfile);
      break;
  case(after_save_exit):
      main_do_quit();
      break;
  default:
      g_assert_not_reached();
  }

  action_after_save_g = after_save_no_action;
}

void
file_save_as_destroy(void)
{
  if (file_save_as_w)
    window_destroy(file_save_as_w);
}

static void
file_save_as_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  /* Note that we no longer have a "Save Capture File As" dialog box. */
  file_save_as_w = NULL;
}

/* Reload a file using the current read and display filters */
void
file_reload_cmd_cb(GtkWidget *w _U_, gpointer data _U_) {
  cf_reload(&cfile);
}

/******************** Color Filters *********************************/
/*
 * Keep a static pointer to the current "Color Export" window, if
 * any, so that if somebody tries to do "Export"
 * while there's already a "Color Export" window up, we just pop
 * up the existing one, rather than creating a new one.
 */
static GtkWidget *file_color_import_w;

/* sets the file path to the global color filter file.
   WARNING: called by both the import and the export dialog.
*/
static void
color_global_cb(GtkWidget *widget _U_, gpointer data)
{
  GtkWidget *fs_widget = data;
  gchar *path;

  /* decide what file to open (from dfilter code) */
  path = get_datafile_path("colorfilters");

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  gtk_file_chooser_select_filename(GTK_FILE_CHOOSER(fs_widget), path);
#else
  file_selection_set_current_folder(fs_widget, path);
#endif
  g_free((gchar *)path);
}

/* Import color filters */
void
file_color_import_cmd_cb(GtkWidget *w _U_, gpointer data)
{
  GtkWidget	*main_vb, *cfglobal_but;
#if GTK_MAJOR_VERSION < 2
  GtkAccelGroup *accel_group;
#endif
  /* No Apply button, and "OK" just sets our text widget, it doesn't
     activate it (i.e., it doesn't cause us to try to open the file). */

  if (file_color_import_w != NULL) {
    /* There's already an "Import Color Filters" dialog box; reactivate it. */
    reactivate_window(file_color_import_w);
    return;
  }

  file_color_import_w = file_selection_new("Ethereal: Import Color Filters",
                                           FILE_SELECTION_OPEN);

#if GTK_MAJOR_VERSION < 2
  /* Accelerator group for the accelerators (or, as they're called in
     Windows and, I think, in Motif, "mnemonics"; Alt+<key> is a mnemonic,
     Ctrl+<key> is an accelerator). */
  accel_group = gtk_accel_group_new();
  gtk_window_add_accel_group(GTK_WINDOW(file_color_import_w), accel_group);
#endif

  /* Container for each row of widgets */
  main_vb = gtk_vbox_new(FALSE, 3);
  gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
  file_selection_set_extra_widget(file_color_import_w, main_vb);
  gtk_widget_show(main_vb);


  cfglobal_but = gtk_button_new_with_label("Global Color Filter File");
  gtk_container_add(GTK_CONTAINER(main_vb), cfglobal_but);
  SIGNAL_CONNECT(cfglobal_but, "clicked", color_global_cb, file_color_import_w);
  gtk_widget_show(cfglobal_but);

  SIGNAL_CONNECT(file_color_import_w, "destroy", file_color_import_destroy_cb, NULL);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  OBJECT_SET_DATA(file_color_import_w, ARGUMENT_CL, data);

  if (gtk_dialog_run(GTK_DIALOG(file_color_import_w)) == GTK_RESPONSE_ACCEPT)
  {
      file_color_import_ok_cb(file_color_import_w, file_color_import_w);
  }
  else window_destroy(file_color_import_w);
#else
  /* Connect the ok_button to file_open_ok_cb function and pass along a
     pointer to the file selection box widget */
  SIGNAL_CONNECT(GTK_FILE_SELECTION(file_color_import_w)->ok_button, "clicked",
                 file_color_import_ok_cb, file_color_import_w);

  OBJECT_SET_DATA(GTK_FILE_SELECTION(file_color_import_w)->ok_button,
                  ARGUMENT_CL, data);

  window_set_cancel_button(file_color_import_w, 
      GTK_FILE_SELECTION(file_color_import_w)->cancel_button, window_cancel_button_cb);

  SIGNAL_CONNECT(file_color_import_w, "delete_event", window_delete_event_cb, NULL);


  gtk_widget_show(file_color_import_w);
  window_present(file_color_import_w);
#endif
}

static void
file_color_import_ok_cb(GtkWidget *w, gpointer fs) {
  gchar     *cf_name, *s;
  gpointer  argument;

  argument = OBJECT_GET_DATA(w, ARGUMENT_CL);     /* to be passed back into color_filters_import */
  
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  cf_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
  cf_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif
  /* Perhaps the user specified a directory instead of a file.
     Check whether they did. */
  if (test_for_directory(cf_name) == EISDIR) {
	/* It's a directory - set the file selection box to display that
	   directory, don't try to open the directory as a color filter file. */
        set_last_open_dir(cf_name);
        g_free(cf_name);
        file_selection_set_current_folder(fs, get_last_open_dir());
    	return;
  }

  /* Try to open the color filter file. */

  if (!color_filters_import(cf_name, argument)) {
    /* We couldn't open it; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the open error,
       try again. */
    g_free(cf_name);
    return;
  }

  /* We've crossed the Rubicon; get rid of the file selection box. */
  window_destroy(GTK_WIDGET (fs));

  /* Save the name of the containing directory specified in the path name,
     if any; we can write over cf_name, which is a good thing, given that
     "get_dirname()" does write over its argument. */
  s = get_dirname(cf_name);
  set_last_open_dir(s);
  gtk_widget_grab_focus(packet_list);

  g_free(cf_name);
}

static void
file_color_import_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  /* Note that we no longer have a "Open Capture File" dialog box. */
  file_color_import_w = NULL;
}

static GtkWidget *file_color_export_w;
/*
 * Set the "Export only marked filters" toggle button as appropriate for
 * the current output file type and count of marked filters.
 *
 * Called when the "Export" dialog box is created and when the marked
 * count changes.
 */
void
color_set_export_marked_sensitive(GtkWidget * cfmark_cb)
{
  if (file_color_export_w == NULL) {
    /* We don't currently have an "Export" dialog box up. */
    return;
  }

  /* We can request that only the marked filters be saved only if
        there *are* marked filters. */
  if (color_marked_count() != 0)
    gtk_widget_set_sensitive(cfmark_cb, TRUE);
  else {
    /* Force the "Export only marked filters" toggle to "false", turn
       off the flag it controls. */
    color_marked = FALSE;
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cfmark_cb), FALSE);
    gtk_widget_set_sensitive(cfmark_cb, FALSE);
  }
}

static void
color_toggle_marked_cb(GtkWidget *widget, gpointer data _U_)
{
  color_marked = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (widget));
}

void
file_color_export_cmd_cb(GtkWidget *w _U_, gpointer data _U_)
{
  GtkWidget *main_vb, *cfglobal_but;

  if (file_color_export_w != NULL) {
    /* There's already an "Color Filter Export" dialog box; reactivate it. */
    reactivate_window(file_color_export_w);
    return;
  }

  /* Default to saving all packets, in the file's current format. */
  color_marked   = FALSE;
  filetype = cfile.cd_t;

  file_color_export_w = file_selection_new("Ethereal: Export Color Filters",
                                           FILE_SELECTION_SAVE);

  /* Container for each row of widgets */
  main_vb = gtk_vbox_new(FALSE, 3);
  gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
  file_selection_set_extra_widget(file_color_export_w, main_vb);
  gtk_widget_show(main_vb);

  cfmark_cb = gtk_check_button_new_with_label("Export only marked filters");
  gtk_container_add(GTK_CONTAINER(main_vb), cfmark_cb);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cfmark_cb), FALSE);
  SIGNAL_CONNECT(cfmark_cb, "toggled", color_toggle_marked_cb, NULL);
  gtk_widget_show(cfmark_cb);
  color_set_export_marked_sensitive(cfmark_cb);

  cfglobal_but = gtk_button_new_with_label("Global Color Filter File");
  gtk_container_add(GTK_CONTAINER(main_vb), cfglobal_but);
  SIGNAL_CONNECT(cfglobal_but, "clicked", color_global_cb, file_color_export_w);
  gtk_widget_show(cfglobal_but);

  SIGNAL_CONNECT(file_color_export_w, "destroy", file_color_export_destroy_cb, NULL);

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  if (gtk_dialog_run(GTK_DIALOG(file_color_export_w)) == GTK_RESPONSE_ACCEPT)
  {
      file_color_export_ok_cb(file_color_export_w, file_color_export_w);
  }
  else window_destroy(file_color_export_w);
#else
  /* Connect the ok_button to file_export_ok_cb function and pass along a
     pointer to the file selection box widget */
  SIGNAL_CONNECT(GTK_FILE_SELECTION (file_color_export_w)->ok_button, "clicked",
                 file_color_export_ok_cb, file_color_export_w);

  window_set_cancel_button(file_color_export_w, 
      GTK_FILE_SELECTION(file_color_export_w)->cancel_button, window_cancel_button_cb);

  SIGNAL_CONNECT(file_color_export_w, "delete_event", window_delete_event_cb, NULL);


  gtk_file_selection_set_filename(GTK_FILE_SELECTION(file_color_export_w), "");

  gtk_widget_show(file_color_export_w);
  window_present(file_color_export_w);
#endif
}

static void
file_color_export_ok_cb(GtkWidget *w _U_, gpointer fs) {
  gchar	*cf_name;
  gchar	*dirname;

#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
  cf_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
#else
  cf_name = g_strdup(gtk_file_selection_get_filename(GTK_FILE_SELECTION(fs)));
#endif

  /* Perhaps the user specified a directory instead of a file.
     Check whether they did. */
  if (test_for_directory(cf_name) == EISDIR) {
        /* It's a directory - set the file selection box to display that
           directory, and leave the selection box displayed. */
        set_last_open_dir(cf_name);
        g_free(cf_name);
        file_selection_set_current_folder(fs, get_last_open_dir());
        return;
  }

  /* Write out the filters (all, or only the ones that are currently
     displayed or marked) to the file with the specified name. */

   if (!color_filters_export(cf_name, color_marked))
   {
    /* The write failed; don't dismiss the open dialog box,
       just leave it around so that the user can, after they
       dismiss the alert box popped up for the error, try again. */

       g_free(cf_name);
       return;
   }

  /* The write succeeded; get rid of the file selection box. */
  window_destroy(GTK_WIDGET (fs));

  /* Save the directory name for future file dialogs. */
  dirname = get_dirname(cf_name);  /* Overwrites cf_name */
  set_last_open_dir(dirname);
  g_free(cf_name);
}

static void
file_color_export_destroy_cb(GtkWidget *win _U_, gpointer user_data _U_)
{
  file_color_export_w = NULL;
}