![Guy Harris](/assets/img/avatar_default.png)
use Export and Import for the buttons in GTK+ 2.x as well; get rid of a duplicate fclose; other fixes. Update the description of color filters in the Ethereal man page to reflect the change, clean up the formatting (use =item), and add the global and personal color filters files to the FILES section; refer to them as "color filters" files rather than "colorfilters" files, as the FILES section gives the "colorfilters" file name so you don't have to use that as the name. Clean up white space. svn path=/trunk/; revision=8285
404 lines
9.8 KiB
C
404 lines
9.8 KiB
C
/* color_filters.c
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* Routines for color filters
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*
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* $Id: color_filters.c,v 1.4 2003/08/27 22:55:51 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* Updated 1 Dec 10 jjm
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gtk/gtk.h>
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#include <string.h>
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#include <epan/filesystem.h>
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#include <epan/packet.h>
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#include "color.h"
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#include "colors.h"
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#include "color_filters.h"
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#include "color_utils.h"
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#include "color_dlg.h"
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#include "file.h"
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#include <epan/dfilter/dfilter.h>
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#include "simple_dialog.h"
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#include "gtkglobals.h"
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static gboolean read_filters(void);
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static gboolean read_global_filters(void);
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GSList *filter_list;
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/* delete the specified filter */
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void
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delete_color_filter(color_filter_t *colorf)
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{
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if (colorf->filter_name != NULL)
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g_free(colorf->filter_name);
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if (colorf->filter_text != NULL)
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g_free(colorf->filter_text);
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if (colorf->c_colorfilter != NULL)
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dfilter_free(colorf->c_colorfilter);
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filter_list = g_slist_remove(filter_list, colorf);
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g_free(colorf);
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}
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/* delete the specified filter as an iterator*/
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static void
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delete_color_filter_it(gpointer filter_arg, gpointer ignored _U_)
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{
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color_filter_t *colorf = filter_arg;
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delete_color_filter(colorf);
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}
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/* delete all the filters */
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static void
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delete_all_color_filters (void)
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{
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g_slist_foreach(filter_list, delete_color_filter_it, NULL);
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}
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/* Initialize the filter structures (reading from file) for general running, including app startup */
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void
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colfilter_init(void)
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{
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delete_all_color_filters();
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if (!read_filters())
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read_global_filters();
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}
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/* Create a new filter */
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color_filter_t *
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new_color_filter(gchar *name, /* The name of the filter to create */
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gchar *filter_string) /* The string representing the filter */
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{
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color_filter_t *colorf;
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GtkStyle *style;
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colorf = (color_filter_t *)g_malloc(sizeof (color_filter_t));
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colorf->filter_name = g_strdup(name);
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colorf->filter_text = g_strdup(filter_string);
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style = gtk_widget_get_style(packet_list);
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gdkcolor_to_color_t(&colorf->bg_color, &style->base[GTK_STATE_NORMAL]);
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gdkcolor_to_color_t(&colorf->fg_color, &style->text[GTK_STATE_NORMAL]);
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colorf->c_colorfilter = NULL;
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colorf->edit_dialog = NULL;
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colorf->marked = FALSE;
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filter_list = g_slist_append(filter_list, colorf);
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return colorf;
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}
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static void
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prime_edt(gpointer data, gpointer user_data)
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{
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color_filter_t *colorf = data;
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epan_dissect_t *edt = user_data;
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if (colorf->c_colorfilter != NULL)
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epan_dissect_prime_dfilter(edt, colorf->c_colorfilter);
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}
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/* Prime the epan_dissect_t with all the compiler
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* color filters in 'filter_list'. */
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void
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filter_list_prime_edt(epan_dissect_t *edt)
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{
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g_slist_foreach(filter_list, prime_edt, edt);
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}
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/* read filters from the given file */
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static gboolean
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read_filters_file(FILE *f, gpointer arg)
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{
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/* TODO: Lots more syntax checking on the file */
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/* I hate these fixed length names! TODO: make more dynamic */
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/* XXX - buffer overflow possibility here
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* sscanf blocks max size of name and filter_exp; buf is used for
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* reading only */
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gchar name[256],filter_exp[256], buf[1024];
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guint16 fg_r, fg_g, fg_b, bg_r, bg_g, bg_b;
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GdkColor fg_color, bg_color;
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color_filter_t *colorf;
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dfilter_t *temp_dfilter;
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do {
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if (fgets(buf,sizeof buf, f) == NULL)
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break;
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if (strspn(buf," \t") == (size_t)((strchr(buf,'*') - buf))) {
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/* leading # comment */
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continue;
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}
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/* we get the @ delimiter. It is not in any strings
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* Format is:
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* @name@filter expression@[background r,g,b][foreground r,g,b]
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*/
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if (sscanf(buf," @%256[^@]@%256[^@]@[%hu,%hu,%hu][%hu,%hu,%hu]",
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name, filter_exp, &bg_r, &bg_g, &bg_b, &fg_r, &fg_g, &fg_b)
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== 8) {
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/* we got a filter */
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if (!dfilter_compile(filter_exp, &temp_dfilter)) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not compile color filter %s from saved filters.\n%s",
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name, dfilter_error_msg);
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continue;
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}
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if (!get_color(&fg_color)) {
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/* oops */
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not allocate foreground color "
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"specified in input file for %s.", name);
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dfilter_free(temp_dfilter);
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continue;
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}
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if (!get_color(&bg_color)) {
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/* oops */
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not allocate background color "
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"specified in input file for %s.", name);
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dfilter_free(temp_dfilter);
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continue;
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}
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colorf = new_color_filter(name, filter_exp);
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colorf->c_colorfilter = temp_dfilter;
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fg_color.red = fg_r;
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fg_color.green = fg_g;
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fg_color.blue = fg_b;
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bg_color.red = bg_r;
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bg_color.green = bg_g;
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bg_color.blue = bg_b;
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gdkcolor_to_color_t(&colorf->bg_color, &bg_color);
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gdkcolor_to_color_t(&colorf->fg_color, &fg_color);
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if (arg != NULL)
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color_add_filter_cb (colorf, arg);
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} /* if sscanf */
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} while(!feof(f));
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return TRUE;
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}
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/* read filters from the user's filter file */
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static gboolean
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read_filters(void)
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{
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/* TODO: Lots more syntax checking on the file */
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/* I hate these fixed length names! TODO: make more dynamic */
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/* XXX - buffer overflow possibility here
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* sscanf blocks max size of name and filter_exp; buf is used for
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* reading only */
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gchar *path;
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FILE *f;
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gboolean ret;
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/* decide what file to open (from dfilter code) */
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path = get_persconffile_path("colorfilters", FALSE);
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if ((f = fopen(path, "r")) == NULL) {
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if (errno != ENOENT) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not open filter file\n\"%s\": %s.", path,
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strerror(errno));
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}
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g_free((gchar *)path);
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return FALSE;
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}
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g_free((gchar *)path);
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path = NULL;
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ret = read_filters_file(f, NULL);
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fclose(f);
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return ret;
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}
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/* read filters from the filter file */
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static gboolean
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read_global_filters(void)
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{
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gchar *path;
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FILE *f;
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gboolean ret;
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/* decide what file to open (from dfilter code) */
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path = get_datafile_path("colorfilters");
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if ((f = fopen(path, "r")) == NULL) {
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if (errno != ENOENT) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not open global filter file\n\"%s\": %s.", path,
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strerror(errno));
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}
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g_free((gchar *)path);
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return FALSE;
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}
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g_free((gchar *)path);
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path = NULL;
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ret = read_filters_file(f, NULL);
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fclose(f);
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return ret;
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}
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/* save filters in some other filter file */
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gboolean
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read_other_filters(gchar *path, gpointer arg)
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{
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FILE *f;
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gboolean ret;
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if ((f = fopen(path, "r")) == NULL) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not open\n%s\nfor reading: %s.",
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path, strerror(errno));
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return FALSE;
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}
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ret = read_filters_file(f, arg);
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fclose(f);
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return ret;
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}
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struct write_filter_data
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{
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FILE * f;
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gboolean only_marked;
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};
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static void
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write_filter(gpointer filter_arg, gpointer data_arg)
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{
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struct write_filter_data *data = data_arg;
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color_filter_t *colorf = filter_arg;
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FILE *f = data->f;
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if (colorf->marked || !data->only_marked) {
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fprintf(f,"@%s@%s@[%d,%d,%d][%d,%d,%d]\n",
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colorf->filter_name,
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colorf->filter_text,
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colorf->bg_color.red,
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colorf->bg_color.green,
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colorf->bg_color.blue,
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colorf->fg_color.red,
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colorf->fg_color.green,
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colorf->fg_color.blue);
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}
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}
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/* save filters in a filter file */
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gboolean
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write_filters_file(FILE *f, gboolean only_marked)
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{
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struct write_filter_data data;
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data.f = f;
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data.only_marked = only_marked;
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fprintf(f,"# DO NOT EDIT THIS FILE! It was created by Ethereal\n");
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g_slist_foreach(filter_list, write_filter, &data);
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return TRUE;
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}
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/* save filters in users filter file */
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gboolean
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write_filters(void)
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{
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gchar *pf_dir_path;
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const gchar *path;
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FILE *f;
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/* Create the directory that holds personal configuration files,
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if necessary. */
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if (create_persconffile_dir(&pf_dir_path) == -1) {
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simple_dialog(ESD_TYPE_WARN, NULL,
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"Can't create directory\n\"%s\"\nfor color files: %s.",
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pf_dir_path, strerror(errno));
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g_free(pf_dir_path);
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return FALSE;
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}
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path = get_persconffile_path("colorfilters", TRUE);
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if ((f = fopen(path, "w+")) == NULL) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not open\n%s\nfor writing: %s.",
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path, strerror(errno));
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return FALSE;
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}
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write_filters_file(f, FALSE);
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fclose(f);
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return TRUE;
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}
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/* delete users filter file and reload global filters*/
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gboolean
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revert_filters(void)
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{
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gchar *pf_dir_path;
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const gchar *path;
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/* Create the directory that holds personal configuration files,
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if necessary. */
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if (create_persconffile_dir(&pf_dir_path) == -1) {
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simple_dialog(ESD_TYPE_WARN, NULL,
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"Can't create directory\n\"%s\"\nfor color files: %s.",
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pf_dir_path, strerror(errno));
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g_free(pf_dir_path);
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return FALSE;
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}
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path = get_persconffile_path("colorfilters", TRUE);
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if (!deletefile(path))
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return FALSE;
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/* Reload the (global) filters - Note: this does not update the dialog. */
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colfilter_init();
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return TRUE;
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}
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/* save filters in some other filter file */
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gboolean
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write_other_filters(gchar *path, gboolean only_marked)
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{
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FILE *f;
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if ((f = fopen(path, "w+")) == NULL) {
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simple_dialog(ESD_TYPE_CRIT, NULL,
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"Could not open\n%s\nfor writing: %s.",
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path, strerror(errno));
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return FALSE;
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}
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write_filters_file(f, only_marked);
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fclose(f);
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return TRUE;
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}
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