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wireshark/filter.c

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/* filter.c
* Routines for managing filter sets
*
* $Id: filter.c,v 1.6 1998/10/13 02:10:55 gerald Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* 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 <gtk/gtk.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <ctype.h>
#include "ethereal.h"
#include "filter.h"
#include "packet.h"
#include "file.h"
#include "menu.h"
#include "prefs.h"
#define E_FILT_NAME_KEY "filter_name"
#define E_FILT_LBL_KEY "filter_label"
#define E_FILT_CM_KEY "in_cancel_mode"
GtkWidget *filter_l, *chg_bt, *copy_bt, *del_bt, *name_te, *filter_te;
GList *fl = NULL;
void get_filter_list();
void
get_filter_list() {
filter_def *filt;
FILE *ff;
gchar *ff_path, *ff_name = ".ethereal/filters", f_buf[256];
gchar *name_begin, *name_end, *filt_begin;
int len, line = 0;
if (fl) return;
/* To do: generalize this */
ff_path = (gchar *) g_malloc(strlen(getenv("HOME")) + strlen(ff_name) + 4);
sprintf(ff_path, "%s/%s", getenv("HOME"), ff_name);
if ((ff = fopen(ff_path, "r")) == NULL) {
g_free(ff_path);
return;
}
while (fgets(f_buf, 256, ff)) {
line++;
len = strlen(f_buf);
if (f_buf[len - 1] == '\n') {
len--;
f_buf[len] = '\0';
}
name_begin = strchr(f_buf, '"');
/* Empty line */
if (name_begin == NULL)
continue;
name_end = strchr(name_begin + 1, '"');
/* No terminating quote */
if (name_end == NULL) {
g_warning("Malformed filter in '%s' line %d.", ff_path, line);
continue;
}
name_begin++;
name_end[0] = '\0';
filt_begin = name_end + 1;
while(isspace(filt_begin[0])) filt_begin++;
/* No filter string */
if (filt_begin[0] == '\0') {
g_warning("Malformed filter in '%s' line %d.", ff_path, line);
continue;
}
filt = (filter_def *) g_malloc(sizeof(filter_def));
filt->name = g_strdup(name_begin);
filt->strval = g_strdup(filt_begin);
fl = g_list_append(fl, filt);
}
fclose(ff);
g_free(ff_path);
}
/* filter_sel_pg - Create and display the filter selection widgets. */
/* Called when the 'Filter' preference notebook page is selected. */
GtkWidget *
filter_prefs_show(GtkWidget *w) {
GtkWidget *main_vb, *top_hb, *list_bb, *new_bt, *filter_sc,
*nl_item, *nl_lb, *middle_hb, *name_lb, *bottom_hb,
*filter_lb;
GtkWidget *l_select = NULL;
GList *flp = NULL;
filter_def *filt;
gchar *filter_te_str = NULL;
/* Make sure everything is set up */
get_filter_list();
if (w)
filter_te_str = gtk_entry_get_text(GTK_ENTRY(w));
/* Container for each row of widgets */
main_vb = gtk_vbox_new(FALSE, 5);
gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
gtk_widget_show(main_vb);
gtk_object_set_data(GTK_OBJECT(main_vb), E_FILT_CM_KEY, (gpointer)FALSE);
/* Top row: Filter list and buttons */
top_hb = gtk_hbox_new(FALSE, 5);
gtk_container_add(GTK_CONTAINER(main_vb), top_hb);
gtk_widget_show(top_hb);
list_bb = gtk_vbutton_box_new();
gtk_button_box_set_layout (GTK_BUTTON_BOX (list_bb), GTK_BUTTONBOX_START);
gtk_container_add(GTK_CONTAINER(top_hb), list_bb);
gtk_widget_show(list_bb);
new_bt = gtk_button_new_with_label ("New");
gtk_signal_connect(GTK_OBJECT(new_bt), "clicked",
GTK_SIGNAL_FUNC(filter_sel_new_cb), NULL);
gtk_container_add(GTK_CONTAINER(list_bb), new_bt);
gtk_widget_show(new_bt);
chg_bt = gtk_button_new_with_label ("Change");
gtk_widget_set_sensitive(chg_bt, FALSE);
gtk_signal_connect(GTK_OBJECT(chg_bt), "clicked",
GTK_SIGNAL_FUNC(filter_sel_chg_cb), NULL);
gtk_container_add(GTK_CONTAINER(list_bb), chg_bt);
gtk_widget_show(chg_bt);
copy_bt = gtk_button_new_with_label ("Copy");
gtk_widget_set_sensitive(copy_bt, FALSE);
gtk_signal_connect(GTK_OBJECT(copy_bt), "clicked",
GTK_SIGNAL_FUNC(filter_sel_copy_cb), NULL);
gtk_container_add(GTK_CONTAINER(list_bb), copy_bt);
gtk_widget_show(copy_bt);
del_bt = gtk_button_new_with_label ("Delete");
gtk_widget_set_sensitive(del_bt, FALSE);
gtk_signal_connect(GTK_OBJECT(del_bt), "clicked",
GTK_SIGNAL_FUNC(filter_sel_del_cb), NULL);
gtk_container_add(GTK_CONTAINER(list_bb), del_bt);
gtk_widget_show(del_bt);
filter_sc = gtk_scrolled_window_new(NULL, NULL);
gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(filter_sc),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_usize(filter_sc, 250, 150);
gtk_container_add(GTK_CONTAINER(top_hb), filter_sc);
gtk_widget_show(filter_sc);
filter_l = gtk_list_new();
gtk_signal_connect(GTK_OBJECT(filter_l), "selection_changed",
GTK_SIGNAL_FUNC(filter_sel_list_cb), main_vb);
gtk_container_add(GTK_CONTAINER(filter_sc), filter_l);
gtk_widget_show(filter_l);
flp = g_list_first(fl);
while (flp) {
filt = (filter_def *) flp->data;
nl_lb = gtk_label_new(filt->name);
nl_item = gtk_list_item_new();
gtk_misc_set_alignment (GTK_MISC (nl_lb), 0.0, 0.5);
gtk_container_add(GTK_CONTAINER(nl_item), nl_lb);
gtk_widget_show(nl_lb);
gtk_container_add(GTK_CONTAINER(filter_l), nl_item);
gtk_widget_show(nl_item);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_LBL_KEY, nl_lb);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_NAME_KEY, flp);
if (filter_te_str && filt->strval)
if (strcmp(filter_te_str, filt->strval) == 0)
l_select = nl_item;
flp = flp->next;
}
/* Middle row: Filter name entry */
middle_hb = gtk_hbox_new(FALSE, 5);
gtk_container_add(GTK_CONTAINER(main_vb), middle_hb);
gtk_widget_show(middle_hb);
name_lb = gtk_label_new("Filter name:");
gtk_box_pack_start(GTK_BOX(middle_hb), name_lb, FALSE, FALSE, 3);
gtk_widget_show(name_lb);
name_te = gtk_entry_new();
gtk_box_pack_start(GTK_BOX(middle_hb), name_te, TRUE, TRUE, 3);
gtk_widget_show(name_te);
/* Bottom row: Filter text entry */
bottom_hb = gtk_hbox_new(FALSE, 5);
gtk_container_add(GTK_CONTAINER(main_vb), bottom_hb);
gtk_widget_show(bottom_hb);
filter_lb = gtk_label_new("Filter string:");
gtk_box_pack_start(GTK_BOX(bottom_hb), filter_lb, FALSE, FALSE, 3);
gtk_widget_show(filter_lb);
filter_te = gtk_entry_new();
gtk_box_pack_start(GTK_BOX(bottom_hb), filter_te, TRUE, TRUE, 3);
gtk_widget_show(filter_te);
if (l_select)
gtk_list_select_child(GTK_LIST(filter_l), l_select);
return(main_vb);
}
void
filter_sel_list_cb(GtkWidget *l, gpointer data) {
filter_def *filt;
gchar *name = "", *strval = "";
GList *sl, *flp;
GtkObject *l_item;
gint sensitivity = FALSE;
sl = GTK_LIST(l)->selection;
if (sl) { /* Something was selected */
l_item = GTK_OBJECT(sl->data);
flp = (GList *) gtk_object_get_data(l_item, E_FILT_NAME_KEY);
if (flp) {
filt = (filter_def *) flp->data;
name = filt->name;
strval = filt->strval;
sensitivity = TRUE;
}
}
/* Did you know that this function is called when the window is destroyed? */
/* Funny, that. */
if (!gtk_object_get_data(GTK_OBJECT(data), E_FILT_CM_KEY)) {
gtk_entry_set_text(GTK_ENTRY(name_te), name);
gtk_entry_set_text(GTK_ENTRY(filter_te), strval);
gtk_widget_set_sensitive(chg_bt, sensitivity);
gtk_widget_set_sensitive(copy_bt, sensitivity);
gtk_widget_set_sensitive(del_bt, sensitivity);
}
}
/* To do: add input checking to each of these callbacks */
void
filter_sel_new_cb(GtkWidget *w, gpointer data) {
filter_def *filt;
gchar *name, *strval;
GtkWidget *nl_item, *nl_lb;
name = gtk_entry_get_text(GTK_ENTRY(name_te));
strval = gtk_entry_get_text(GTK_ENTRY(filter_te));
if (strlen(name) > 0 && strlen(strval) > 0) {
filt = (filter_def *) g_malloc(sizeof(filter_def));
filt->name = g_strdup(name);
filt->strval = g_strdup(strval);
fl = g_list_append(fl, filt);
nl_lb = gtk_label_new(filt->name);
nl_item = gtk_list_item_new();
gtk_misc_set_alignment (GTK_MISC (nl_lb), 0.0, 0.5);
gtk_container_add(GTK_CONTAINER(nl_item), nl_lb);
gtk_widget_show(nl_lb);
gtk_container_add(GTK_CONTAINER(filter_l), nl_item);
gtk_widget_show(nl_item);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_LBL_KEY, nl_lb);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_NAME_KEY, g_list_last(fl));
gtk_list_select_child(GTK_LIST(filter_l), nl_item);
}
}
void
filter_sel_chg_cb(GtkWidget *w, gpointer data) {
filter_def *filt;
gchar *name = "", *strval = "";
GList *sl, *flp;
GtkObject *l_item;
GtkLabel *nl_lb;
sl = GTK_LIST(filter_l)->selection;
name = gtk_entry_get_text(GTK_ENTRY(name_te));
strval = gtk_entry_get_text(GTK_ENTRY(filter_te));
if (sl) { /* Something was selected */
l_item = GTK_OBJECT(sl->data);
flp = (GList *) gtk_object_get_data(l_item, E_FILT_NAME_KEY);
nl_lb = (GtkLabel *) gtk_object_get_data(l_item, E_FILT_LBL_KEY);
if (flp && nl_lb) {
filt = (filter_def *) flp->data;
if (strlen(name) > 0 && strlen(strval) > 0 && filt) {
g_free(filt->name);
g_free(filt->strval);
filt->name = g_strdup(name);
filt->strval = g_strdup(strval);
gtk_label_set(nl_lb, filt->name);
}
}
}
}
void
filter_sel_copy_cb(GtkWidget *w, gpointer data) {
GList *sl, *flp;
filter_def *filt, *nfilt;
gchar *prefix = "Copy of ";
GtkObject *l_item;
GtkWidget *nl_item, *nl_lb;
sl = GTK_LIST(filter_l)->selection;
if (sl) { /* Something was selected */
l_item = GTK_OBJECT(sl->data);
flp = (GList *) gtk_object_get_data(l_item, E_FILT_NAME_KEY);
if (flp) {
filt = (filter_def *) flp->data;
nfilt = (filter_def *) g_malloc(sizeof(filter_def));
nfilt->name = g_malloc(strlen(prefix) + strlen(filt->name) + 1);
sprintf(nfilt->name, "%s%s", prefix, filt->name);
nfilt->strval = g_strdup(filt->strval);
fl = g_list_append(fl, nfilt);
nl_lb = gtk_label_new(nfilt->name);
nl_item = gtk_list_item_new();
gtk_misc_set_alignment (GTK_MISC (nl_lb), 0.0, 0.5);
gtk_container_add(GTK_CONTAINER(nl_item), nl_lb);
gtk_widget_show(nl_lb);
gtk_container_add(GTK_CONTAINER(filter_l), nl_item);
gtk_widget_show(nl_item);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_LBL_KEY, nl_lb);
gtk_object_set_data(GTK_OBJECT(nl_item), E_FILT_NAME_KEY, g_list_last(fl));
gtk_list_select_child(GTK_LIST(filter_l), nl_item);
}
}
}
void
filter_sel_del_cb(GtkWidget *w, gpointer data) {
GList *sl, *flp;
filter_def *filt;
GtkObject *l_item;
gint pos;
sl = GTK_LIST(filter_l)->selection;
if (sl) { /* Something was selected */
l_item = GTK_OBJECT(sl->data);
pos = gtk_list_child_position(GTK_LIST(filter_l),
GTK_WIDGET(l_item));
flp = (GList *) gtk_object_get_data(l_item, E_FILT_NAME_KEY);
if (flp) {
filt = (filter_def *) flp->data;
g_free(filt->name);
g_free(filt->strval);
g_free(filt);
fl = g_list_remove_link(fl, flp);
gtk_list_clear_items(GTK_LIST(filter_l), pos, pos + 1);
}
}
}
void
filter_prefs_ok(GtkWidget *w) {
GList *flp, *sl;
GtkObject *l_item;
filter_def *filt;
GtkWidget *mw_filt = gtk_object_get_data(GTK_OBJECT(w), E_FILT_TE_PTR_KEY);
sl = GTK_LIST(filter_l)->selection;
if (sl && mw_filt) { /* Place something in the filter box. */
l_item = GTK_OBJECT(sl->data);
flp = (GList *) gtk_object_get_data(l_item, E_FILT_NAME_KEY);
if (flp) {
filt = (filter_def *) flp->data;
gtk_entry_set_text(GTK_ENTRY(mw_filt), filt->strval);
}
}
filter_prefs_cancel(w);
}
void
filter_prefs_save(GtkWidget *w) {
GList *flp;
filter_def *filt;
gchar *ff_path, *ff_dir = ".ethereal", *ff_name = "filters";
FILE *ff;
struct stat s_buf;
ff_path = (gchar *) g_malloc(strlen(getenv("HOME")) + strlen(ff_dir) +
strlen(ff_name) + 4);
sprintf(ff_path, "%s/%s", getenv("HOME"), ff_dir);
if (stat(ff_path, &s_buf) != 0)
mkdir(ff_path, 0755);
sprintf(ff_path, "%s/%s/%s", getenv("HOME"), ff_dir, ff_name);
if ((ff = fopen(ff_path, "w")) != NULL) {
flp = g_list_first(fl);
while (flp) {
filt = (filter_def *) flp->data;
fprintf(ff, "\"%s\" %s\n", filt->name, filt->strval);
flp = flp->next;
}
fclose(ff);
}
g_free(ff_path);
}
void
filter_prefs_cancel(GtkWidget *w) {
filter_def *filt;
/* Let the list cb know we're about to destroy the widget tree, so it */
/* doesn't operate on widgets that don't exist. */
gtk_object_set_data(GTK_OBJECT(w), E_FILT_CM_KEY, (gpointer)TRUE);
gtk_widget_destroy(GTK_WIDGET(w));
}
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