![Guy Harris](/assets/img/avatar_default.png)
add support for a system-wide color filter file; fix a bug where "read_filters()" didn't close the file handle. Use the "get_datafile_path()" routine he added to construct the pathname of the Diameter directory, the global preferences file, and the manuf file. svn path=/trunk/; revision=7677
360 lines
9 KiB
C
360 lines
9 KiB
C
/* color_filters.c
|
|
* Routines for color filters
|
|
*
|
|
* $Id: color_filters.c,v 1.2 2003/05/15 07:44:54 guy Exp $
|
|
*
|
|
* 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.
|
|
*/
|
|
/*
|
|
* Updated 1 Dec 10 jjm
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#include <string.h>
|
|
|
|
#include <epan/filesystem.h>
|
|
|
|
#include <epan/packet.h>
|
|
#include "color.h"
|
|
#include "colors.h"
|
|
#include "color_filters.h"
|
|
#include "color_utils.h"
|
|
#include "file.h"
|
|
#include <epan/dfilter/dfilter.h>
|
|
#include "simple_dialog.h"
|
|
#include "gtkglobals.h"
|
|
|
|
static gboolean read_filters(void);
|
|
static gboolean read_global_filters(void);
|
|
|
|
GSList *filter_list;
|
|
|
|
/* delete the specified filter */
|
|
void
|
|
delete_color_filter(color_filter_t *colorf)
|
|
{
|
|
if (colorf->filter_name != NULL)
|
|
g_free(colorf->filter_name);
|
|
if (colorf->filter_text != NULL)
|
|
g_free(colorf->filter_text);
|
|
if (colorf->c_colorfilter != NULL)
|
|
dfilter_free(colorf->c_colorfilter);
|
|
filter_list = g_slist_remove(filter_list, colorf);
|
|
g_free(colorf);
|
|
}
|
|
|
|
/* delete the specified filter as an iterator*/
|
|
static void
|
|
delete_color_filter_it(gpointer filter_arg, gpointer ignored _U_)
|
|
{
|
|
color_filter_t *colorf = filter_arg;
|
|
|
|
delete_color_filter(colorf);
|
|
}
|
|
|
|
/* delete all the filters */
|
|
|
|
static void
|
|
delete_all_color_filters (void)
|
|
{
|
|
g_slist_foreach(filter_list, delete_color_filter_it, NULL);
|
|
}
|
|
|
|
/* Initialize the filter structures (reading from file) for general running, including app startup */
|
|
void
|
|
colfilter_init(void)
|
|
{
|
|
delete_all_color_filters();
|
|
if (!read_filters())
|
|
read_global_filters();
|
|
}
|
|
|
|
/* Create a new filter */
|
|
color_filter_t *
|
|
new_color_filter(gchar *name, /* The name of the filter to create */
|
|
gchar *filter_string) /* The string representing the filter */
|
|
{
|
|
color_filter_t *colorf;
|
|
GtkStyle *style;
|
|
|
|
colorf = (color_filter_t *)g_malloc(sizeof (color_filter_t));
|
|
colorf->filter_name = g_strdup(name);
|
|
colorf->filter_text = g_strdup(filter_string);
|
|
style = gtk_widget_get_style(packet_list);
|
|
gdkcolor_to_color_t(&colorf->bg_color, &style->base[GTK_STATE_NORMAL]);
|
|
gdkcolor_to_color_t(&colorf->fg_color, &style->text[GTK_STATE_NORMAL]);
|
|
colorf->c_colorfilter = NULL;
|
|
colorf->edit_dialog = NULL;
|
|
filter_list = g_slist_append(filter_list, colorf);
|
|
return colorf;
|
|
}
|
|
|
|
|
|
static void
|
|
prime_edt(gpointer data, gpointer user_data)
|
|
{
|
|
color_filter_t *colorf = data;
|
|
epan_dissect_t *edt = user_data;
|
|
|
|
if (colorf->c_colorfilter != NULL)
|
|
epan_dissect_prime_dfilter(edt, colorf->c_colorfilter);
|
|
}
|
|
|
|
/* Prime the epan_dissect_t with all the compiler
|
|
* color filters in 'filter_list'. */
|
|
void
|
|
filter_list_prime_edt(epan_dissect_t *edt)
|
|
{
|
|
g_slist_foreach(filter_list, prime_edt, edt);
|
|
}
|
|
|
|
|
|
/* read filters from the given file */
|
|
static gboolean
|
|
read_filters_file(gpointer file_arg)
|
|
{
|
|
/* TODO: Lots more syntax checking on the file */
|
|
/* I hate these fixed length names! TODO: make more dynamic */
|
|
/* XXX - buffer overflow possibility here
|
|
* sscanf blocks max size of name and filter_exp; buf is used for
|
|
* reading only */
|
|
gchar name[256],filter_exp[256], buf[1024];
|
|
guint16 fg_r, fg_g, fg_b, bg_r, bg_g, bg_b;
|
|
GdkColor fg_color, bg_color;
|
|
color_filter_t *colorf;
|
|
dfilter_t *temp_dfilter;
|
|
FILE *f = file_arg;
|
|
|
|
do {
|
|
if (fgets(buf,sizeof buf, f) == NULL)
|
|
break;
|
|
|
|
if (strspn(buf," \t") == (size_t)((strchr(buf,'*') - buf))) {
|
|
/* leading # comment */
|
|
continue;
|
|
}
|
|
|
|
/* we get the @ delimiter. It is not in any strings
|
|
* Format is:
|
|
* @name@filter expression@[background r,g,b][foreground r,g,b]
|
|
*/
|
|
if (sscanf(buf," @%256[^@]@%256[^@]@[%hu,%hu,%hu][%hu,%hu,%hu]",
|
|
name, filter_exp, &bg_r, &bg_g, &bg_b, &fg_r, &fg_g, &fg_b)
|
|
== 8) {
|
|
/* we got a filter */
|
|
|
|
if (!dfilter_compile(filter_exp, &temp_dfilter)) {
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not compile color filter %s from saved filters.\n%s",
|
|
name, dfilter_error_msg);
|
|
continue;
|
|
}
|
|
if (!get_color(&fg_color)) {
|
|
/* oops */
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not allocate foreground color "
|
|
"specified in input file for %s.", name);
|
|
dfilter_free(temp_dfilter);
|
|
continue;
|
|
}
|
|
if (!get_color(&bg_color)) {
|
|
/* oops */
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not allocate background color "
|
|
"specified in input file for %s.", name);
|
|
dfilter_free(temp_dfilter);
|
|
continue;
|
|
}
|
|
|
|
colorf = new_color_filter(name, filter_exp);
|
|
colorf->c_colorfilter = temp_dfilter;
|
|
fg_color.red = fg_r;
|
|
fg_color.green = fg_g;
|
|
fg_color.blue = fg_b;
|
|
bg_color.red = bg_r;
|
|
bg_color.green = bg_g;
|
|
bg_color.blue = bg_b;
|
|
|
|
gdkcolor_to_color_t(&colorf->bg_color, &bg_color);
|
|
gdkcolor_to_color_t(&colorf->fg_color, &fg_color);
|
|
} /* if sscanf */
|
|
} while(!feof(f));
|
|
fclose(f);
|
|
return TRUE;
|
|
}
|
|
/* read filters from the user's filter file */
|
|
static gboolean
|
|
read_filters(void)
|
|
{
|
|
/* TODO: Lots more syntax checking on the file */
|
|
/* I hate these fixed length names! TODO: make more dynamic */
|
|
/* XXX - buffer overflow possibility here
|
|
* sscanf blocks max size of name and filter_exp; buf is used for
|
|
* reading only */
|
|
gchar *path;
|
|
FILE *f;
|
|
|
|
/* decide what file to open (from dfilter code) */
|
|
path = get_persconffile_path("colorfilters", FALSE);
|
|
if ((f = fopen(path, "r")) == NULL) {
|
|
if (errno != ENOENT) {
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not open filter file\n\"%s\": %s.", path,
|
|
strerror(errno));
|
|
}
|
|
g_free((gchar *)path);
|
|
return FALSE;
|
|
}
|
|
g_free((gchar *)path);
|
|
path = NULL;
|
|
|
|
return read_filters_file(f);
|
|
}
|
|
|
|
/* read filters from the filter file */
|
|
static gboolean
|
|
read_global_filters(void)
|
|
{
|
|
gchar *path;
|
|
FILE *f;
|
|
|
|
/* decide what file to open (from dfilter code) */
|
|
path = get_datafile_path("colorfilters");
|
|
if ((f = fopen(path, "r")) == NULL) {
|
|
if (errno != ENOENT) {
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not open global filter file\n\"%s\": %s.", path,
|
|
strerror(errno));
|
|
}
|
|
g_free((gchar *)path);
|
|
return FALSE;
|
|
}
|
|
g_free((gchar *)path);
|
|
path = NULL;
|
|
|
|
return read_filters_file(f);
|
|
}
|
|
|
|
static void
|
|
write_filter(gpointer filter_arg, gpointer file_arg)
|
|
{
|
|
color_filter_t *colorf = filter_arg;
|
|
FILE *f = file_arg;
|
|
|
|
fprintf(f,"@%s@%s@[%d,%d,%d][%d,%d,%d]\n",
|
|
colorf->filter_name,
|
|
colorf->filter_text,
|
|
colorf->bg_color.red,
|
|
colorf->bg_color.green,
|
|
colorf->bg_color.blue,
|
|
colorf->fg_color.red,
|
|
colorf->fg_color.green,
|
|
colorf->fg_color.blue);
|
|
}
|
|
|
|
/* save filters in a filter file */
|
|
gboolean
|
|
write_filters_file(FILE *f)
|
|
{
|
|
fprintf(f,"# DO NOT EDIT THIS FILE! It was created by Ethereal\n");
|
|
g_slist_foreach(filter_list, write_filter, f);
|
|
return TRUE;
|
|
}
|
|
|
|
/* save filters in users filter file */
|
|
|
|
gboolean
|
|
write_filters(void)
|
|
{
|
|
gchar *pf_dir_path;
|
|
const gchar *path;
|
|
FILE *f;
|
|
|
|
/* Create the directory that holds personal configuration files,
|
|
if necessary. */
|
|
if (create_persconffile_dir(&pf_dir_path) == -1) {
|
|
simple_dialog(ESD_TYPE_WARN, NULL,
|
|
"Can't create directory\n\"%s\"\nfor color files: %s.",
|
|
pf_dir_path, strerror(errno));
|
|
g_free(pf_dir_path);
|
|
return FALSE;
|
|
}
|
|
|
|
path = get_persconffile_path("colorfilters", TRUE);
|
|
if ((f = fopen(path, "w+")) == NULL) {
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not open\n%s\nfor writing: %s.",
|
|
path, strerror(errno));
|
|
return FALSE;
|
|
}
|
|
write_filters_file(f);
|
|
fclose(f);
|
|
return TRUE;
|
|
}
|
|
|
|
/* delete users filter file and reload global filters*/
|
|
|
|
gboolean
|
|
revert_filters(void)
|
|
{
|
|
gchar *pf_dir_path;
|
|
const gchar *path;
|
|
|
|
/* Create the directory that holds personal configuration files,
|
|
if necessary. */
|
|
if (create_persconffile_dir(&pf_dir_path) == -1) {
|
|
simple_dialog(ESD_TYPE_WARN, NULL,
|
|
"Can't create directory\n\"%s\"\nfor color files: %s.",
|
|
pf_dir_path, strerror(errno));
|
|
g_free(pf_dir_path);
|
|
return FALSE;
|
|
}
|
|
|
|
path = get_persconffile_path("colorfilters", TRUE);
|
|
if (!deletefile(path))
|
|
return FALSE;
|
|
|
|
/* Reload the (global) filters - Note: this does not update the dialog. */
|
|
colfilter_init();
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* save filters in some other filter file */
|
|
|
|
gboolean
|
|
write_other_filters(gchar *path)
|
|
{
|
|
FILE *f;
|
|
|
|
if ((f = fopen(path, "w+")) == NULL) {
|
|
simple_dialog(ESD_TYPE_CRIT, NULL,
|
|
"Could not open\n%s\nfor writing: %s.",
|
|
path, strerror(errno));
|
|
return FALSE;
|
|
}
|
|
write_filters_file(f);
|
|
fclose(f);
|
|
return TRUE;
|
|
}
|