697 lines
19 KiB
C
697 lines
19 KiB
C
/* follow_stream.c
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* Common routines for following data streams
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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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 <ctype.h>
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#include <string.h>
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#include <gtk/gtk.h>
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#include <alert_box.h>
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#include <isprint.h>
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#include <print.h>
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#include <epan/follow.h>
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#include <epan/filesystem.h>
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#include <epan/prefs.h>
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#include <gtk/colors.h>
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#include <gtk/compat_macros.h>
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#include <gtk/dlg_utils.h>
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#include <gtk/follow_stream.h>
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#include <gtk/font_utils.h>
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#include <gtk/file_dlg.h>
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#include <gtk/gui_utils.h>
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#include <simple_dialog.h>
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#include <wiretap/file_util.h>
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#include "main.h"
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#include "print_mswin.h"
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/* static variable declarations to speed up the performance
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* of follow_load_text and follow_add_to_gtk_text
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*/
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static GdkColor server_fg, server_bg;
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static GdkColor client_fg, client_bg;
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#if GTK_MAJOR_VERSION >= 2
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static GtkTextTag *server_tag, *client_tag;
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#endif
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GList *follow_infos = NULL;
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frs_return_t
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follow_read_stream(follow_info_t *follow_info,
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gboolean (*print_line)(char *, size_t, gboolean, void *),
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void *arg)
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{
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switch(follow_info->follow_type) {
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case FOLLOW_TCP :
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return follow_read_tcp_stream(follow_info, print_line, arg);
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case FOLLOW_SSL :
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return follow_read_ssl_stream(follow_info, print_line, arg);
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default :
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g_assert_not_reached();
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return 0;
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}
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}
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gboolean
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follow_add_to_gtk_text(char *buffer, size_t nchars, gboolean is_server,
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void *arg)
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{
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GtkWidget *text = arg;
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#if GTK_MAJOR_VERSION >= 2
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GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(text));
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GtkTextIter iter;
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#endif
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#if GTK_MAJOR_VERSION >= 2 || GTK_MINOR_VERSION >= 3
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/* While our isprint() hack is in place, we
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* have to use convert some chars to '.' in order
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* to be able to see the data we *should* see
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* in the GtkText widget.
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*/
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size_t i;
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for (i = 0; i < nchars; i++) {
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if (buffer[i] == '\n' || buffer[i] == '\r')
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continue;
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if (! isprint((guchar)buffer[i])) {
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buffer[i] = '.';
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}
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}
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#endif
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#if GTK_MAJOR_VERSION < 2
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if (is_server) {
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gtk_text_insert(GTK_TEXT(text), user_font_get_regular(), &server_fg,
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&server_bg, buffer, nchars);
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} else {
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gtk_text_insert(GTK_TEXT(text), user_font_get_regular(), &client_fg,
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&client_bg, buffer, nchars);
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}
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#else
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gtk_text_buffer_get_end_iter(buf, &iter);
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if (is_server) {
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gtk_text_buffer_insert_with_tags(buf, &iter, buffer, nchars,
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server_tag, NULL);
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} else {
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gtk_text_buffer_insert_with_tags(buf, &iter, buffer, nchars,
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client_tag, NULL);
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}
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#endif
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return TRUE;
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}
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/*
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* XXX - for text printing, we probably want to wrap lines at 80 characters;
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* (PostScript printing is doing this already), and perhaps put some kind of
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* dingbat (to use the technical term) to indicate a wrapped line, along the
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* lines of what's done when displaying this in a window, as per Warren Young's
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* suggestion.
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*/
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gboolean
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follow_print_text(char *buffer, size_t nchars, gboolean is_server _U_, void *arg)
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{
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print_stream_t *stream = arg;
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size_t i;
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char *str;
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/* convert non printable characters */
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for (i = 0; i < nchars; i++) {
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if (buffer[i] == '\n' || buffer[i] == '\r')
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continue;
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if (! isprint((guchar)buffer[i])) {
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buffer[i] = '.';
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}
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}
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/* convert unterminated char array to a zero terminated string */
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str = g_malloc(nchars + 1);
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memcpy(str, buffer, nchars);
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str[nchars] = 0;
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print_line(stream, /*indent*/ 0, str);
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g_free(str);
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return TRUE;
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}
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gboolean
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follow_write_raw(char *buffer, size_t nchars, gboolean is_server _U_, void *arg)
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{
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FILE *fh = arg;
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size_t nwritten;
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nwritten = fwrite(buffer, 1, nchars, fh);
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if (nwritten != nchars)
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return FALSE;
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return TRUE;
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}
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/* Handles the display style toggling */
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void
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follow_charset_toggle_cb(GtkWidget * w _U_, gpointer data)
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{
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follow_info_t *follow_info = data;
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/*
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* A radio button toggles when it goes on and when it goes
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* off, so when you click a radio button two signals are
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* delivered. We only want to reprocess the display once,
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* so we do it only when the button goes on.
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*/
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if (GTK_TOGGLE_BUTTON(w)->active) {
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if (w == follow_info->ebcdic_bt)
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follow_info->show_type = SHOW_EBCDIC;
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else if (w == follow_info->hexdump_bt)
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follow_info->show_type = SHOW_HEXDUMP;
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else if (w == follow_info->carray_bt)
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follow_info->show_type = SHOW_CARRAY;
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else if (w == follow_info->ascii_bt)
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follow_info->show_type = SHOW_ASCII;
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else if (w == follow_info->raw_bt)
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follow_info->show_type = SHOW_RAW;
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follow_load_text(follow_info);
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}
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}
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void
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follow_load_text(follow_info_t *follow_info)
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{
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#if GTK_MAJOR_VERSION < 2
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int bytes_already;
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#else
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GtkTextBuffer *buf;
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buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(follow_info->text));
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#endif
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/* prepare colors one time for repeated use by follow_add_to_gtk_text */
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color_t_to_gdkcolor(&server_fg, &prefs.st_server_fg);
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color_t_to_gdkcolor(&server_bg, &prefs.st_server_bg);
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color_t_to_gdkcolor(&client_fg, &prefs.st_client_fg);
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color_t_to_gdkcolor(&client_bg, &prefs.st_client_bg);
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/* Delete any info already in text box */
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#if GTK_MAJOR_VERSION < 2
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bytes_already = gtk_text_get_length(GTK_TEXT(follow_info->text));
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if (bytes_already > 0) {
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gtk_text_set_point(GTK_TEXT(follow_info->text), 0);
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gtk_text_forward_delete(GTK_TEXT(follow_info->text), bytes_already);
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}
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/* stop the updates while we fill the text box */
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gtk_text_freeze(GTK_TEXT(follow_info->text));
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#else
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/* prepare tags one time for repeated use by follow_add_to_gtk_text */
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server_tag = gtk_text_buffer_create_tag(buf, NULL, "foreground-gdk",
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&server_fg, "background-gdk",
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&server_bg, "font-desc",
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user_font_get_regular(), NULL);
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client_tag = gtk_text_buffer_create_tag(buf, NULL, "foreground-gdk",
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&client_fg, "background-gdk",
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&client_bg, "font-desc",
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user_font_get_regular(), NULL);
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gtk_text_buffer_set_text(buf, "", -1);
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#endif
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follow_read_stream(follow_info, follow_add_to_gtk_text,
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follow_info->text);
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#if GTK_MAJOR_VERSION < 2
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gtk_text_thaw(GTK_TEXT(follow_info->text));
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#endif
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}
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void
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follow_filter_out_stream(GtkWidget * w _U_, gpointer data)
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{
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follow_info_t *follow_info = data;
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/* Lock out user from messing with us. (ie. don't free our data!) */
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gtk_widget_set_sensitive(follow_info->streamwindow, FALSE);
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/* Set the display filter. */
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gtk_entry_set_text(GTK_ENTRY(follow_info->filter_te), follow_info->filter_out_filter);
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/* Run the display filter so it goes in effect. */
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main_filter_packets(&cfile, follow_info->filter_out_filter, FALSE);
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/* we force a subsequent close */
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window_destroy(follow_info->streamwindow);
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return;
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}
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#if GTK_CHECK_VERSION(2,4,0)
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void
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follow_find_cb(GtkWidget * w _U_, gpointer data)
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{
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follow_info_t *follow_info = data;
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GtkTooltips *tooltips;
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GtkWidget *find_dlg_w, *main_vb, *buttons_row, *find_lb;
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GtkWidget *find_hb, *find_text_box, *find_bt, *cancel_bt;
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tooltips = gtk_tooltips_new();
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if (follow_info->find_dlg_w != NULL) {
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/* There's already a dialog box; reactivate it. */
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reactivate_window(follow_info->find_dlg_w);
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return;
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}
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/* Create the find box */
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find_dlg_w = dlg_window_new("Wireshark: Find text");
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gtk_window_set_transient_for(GTK_WINDOW(find_dlg_w),
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GTK_WINDOW(follow_info->streamwindow));
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gtk_window_set_destroy_with_parent(GTK_WINDOW(find_dlg_w), TRUE);
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follow_info->find_dlg_w = find_dlg_w;
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SIGNAL_CONNECT(find_dlg_w, "destroy", follow_find_destroy_cb, follow_info);
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SIGNAL_CONNECT(find_dlg_w, "delete_event", window_delete_event_cb, NULL);
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/* Main vertical box */
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main_vb = gtk_vbox_new(FALSE, 3);
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gtk_container_border_width(GTK_CONTAINER(main_vb), 5);
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gtk_container_add(GTK_CONTAINER(find_dlg_w), main_vb);
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/* Horizontal box for find label, entry field and up/down radio buttons*/
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find_hb = gtk_hbox_new(FALSE, 3);
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gtk_container_add(GTK_CONTAINER(main_vb), find_hb);
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gtk_widget_show(find_hb);
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/* Find label */
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find_lb = gtk_label_new("Find text:");
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gtk_box_pack_start(GTK_BOX(find_hb), find_lb, FALSE, FALSE, 0);
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gtk_widget_show(find_lb);
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/* Find field */
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find_text_box = gtk_entry_new();
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gtk_box_pack_start(GTK_BOX(find_hb), find_text_box, FALSE, FALSE, 0);
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gtk_tooltips_set_tip(tooltips, find_text_box, "Text to search for (case sensitive)", NULL);
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gtk_widget_show(find_text_box);
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/* Buttons row */
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buttons_row = dlg_button_row_new(GTK_STOCK_FIND, GTK_STOCK_CANCEL, NULL);
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gtk_container_add(GTK_CONTAINER(main_vb), buttons_row);
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find_bt = OBJECT_GET_DATA(buttons_row, GTK_STOCK_FIND);
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cancel_bt = OBJECT_GET_DATA(buttons_row, GTK_STOCK_CANCEL);
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SIGNAL_CONNECT(find_bt, "clicked", follow_find_button_cb, follow_info);
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OBJECT_SET_DATA(find_bt, "find_string", find_text_box);
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window_set_cancel_button(find_dlg_w, cancel_bt, window_cancel_button_cb);
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/* Hitting return in the find field "clicks" the find button */
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dlg_set_activate(find_text_box, find_bt);
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/* Show the dialog */
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gtk_widget_show_all(find_dlg_w);
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window_present(find_dlg_w);
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}
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void
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follow_find_button_cb(GtkWidget * w, gpointer data)
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{
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gboolean found;
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const gchar *find_string;
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follow_info_t *follow_info = data;
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GtkTextBuffer *buffer;
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GtkTextIter iter, match_start, match_end;
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GtkTextMark *last_pos_mark;
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GtkWidget *find_string_w;
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/* Get the text the user typed into the find field */
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find_string_w = (GtkWidget *)OBJECT_GET_DATA(w, "find_string");
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find_string = gtk_entry_get_text(GTK_ENTRY(find_string_w));
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/* Get the buffer associated with the follow stream */
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buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(follow_info->text));
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gtk_text_buffer_get_start_iter(buffer, &iter);
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/* Look for the search string in the buffer */
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last_pos_mark = gtk_text_buffer_get_mark(buffer, "last_position");
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if(last_pos_mark)
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gtk_text_buffer_get_iter_at_mark(buffer, &iter, last_pos_mark);
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found = gtk_text_iter_forward_search(&iter, find_string, 0, &match_start,
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&match_end,
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NULL);
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if(found) {
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gtk_text_buffer_select_range(buffer, &match_start, &match_end);
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last_pos_mark = gtk_text_buffer_create_mark (buffer, "last_position",
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&match_end, FALSE);
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gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(follow_info->text), last_pos_mark);
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} else {
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/* We didn't find a match */
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simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
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"%sFind text has reached the end of the followed "
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"stream%s\n\nThe next search will start from the "
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"beginning", simple_dialog_primary_start(),
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simple_dialog_primary_end());
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if(last_pos_mark)
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gtk_text_buffer_delete_mark(buffer, last_pos_mark);
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}
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}
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void
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follow_find_destroy_cb(GtkWidget * win _U_, gpointer data)
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{
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follow_info_t *follow_info = data;
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/* Note that we no longer have a dialog box. */
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follow_info->find_dlg_w = NULL;
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}
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#endif /* GTK_CHECK_VERSION(2,4,0) */
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void
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follow_print_stream(GtkWidget * w _U_, gpointer data)
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{
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print_stream_t *stream;
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gboolean to_file;
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char *print_dest;
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follow_info_t *follow_info = data;
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#ifdef _WIN32
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gboolean win_printer = FALSE;
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#endif
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switch (prefs.pr_dest) {
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case PR_DEST_CMD:
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#ifdef _WIN32
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win_printer = TRUE;
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/*XXX should use temp file stuff in util routines */
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print_dest = g_strdup(tmpnam(NULL));
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to_file = TRUE;
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#else
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print_dest = prefs.pr_cmd;
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to_file = FALSE;
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#endif
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break;
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case PR_DEST_FILE:
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print_dest = prefs.pr_file;
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to_file = TRUE;
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break;
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default: /* "Can't happen" */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Couldn't figure out where to send the print "
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"job. Check your preferences.");
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return;
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}
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switch (prefs.pr_format) {
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case PR_FMT_TEXT:
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stream = print_stream_text_new(to_file, print_dest);
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break;
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case PR_FMT_PS:
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stream = print_stream_ps_new(to_file, print_dest);
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break;
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default:
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g_assert_not_reached();
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stream = NULL;
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}
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if (stream == NULL) {
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if (to_file) {
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open_failure_alert_box(prefs.pr_file, errno, TRUE);
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} else {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Couldn't run print command %s.", prefs.pr_cmd);
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}
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return;
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}
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if (!print_preamble(stream, cfile.filename))
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goto print_error;
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switch (follow_read_stream(follow_info, follow_print_text, stream)) {
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case FRS_OK:
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break;
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case FRS_OPEN_ERROR:
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case FRS_READ_ERROR:
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/* XXX - cancel printing? */
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destroy_print_stream(stream);
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return;
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case FRS_PRINT_ERROR:
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goto print_error;
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}
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if (!print_finale(stream))
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goto print_error;
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if (!destroy_print_stream(stream)) {
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if (to_file) {
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write_failure_alert_box(prefs.pr_file, errno);
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} else {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Error closing print destination.");
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}
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}
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#ifdef _WIN32
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if (win_printer) {
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print_mswin(print_dest);
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/* trash temp file */
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eth_remove(print_dest);
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}
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#endif
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return;
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print_error:
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if (to_file) {
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write_failure_alert_box(prefs.pr_file, errno);
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} else {
|
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
|
|
"Error writing to print command: %s", strerror(errno));
|
|
}
|
|
/* XXX - cancel printing? */
|
|
destroy_print_stream(stream);
|
|
|
|
#ifdef _WIN32
|
|
if (win_printer) {
|
|
/* trash temp file */
|
|
eth_remove(print_dest);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Keep a static pointer to the current "Save TCP Follow Stream As" window, if
|
|
* any, so that if somebody tries to do "Save"
|
|
* while there's already a "Save TCP Follow Stream" window up, we just pop
|
|
* up the existing one, rather than creating a new one.
|
|
*/
|
|
void
|
|
follow_save_as_cmd_cb(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
GtkWidget *new_win;
|
|
follow_info_t *follow_info = data;
|
|
|
|
if (follow_info->follow_save_as_w != NULL) {
|
|
/* There's already a dialog box; reactivate it. */
|
|
reactivate_window(follow_info->follow_save_as_w);
|
|
return;
|
|
}
|
|
|
|
new_win = file_selection_new("Wireshark: Save TCP Follow Stream As",
|
|
FILE_SELECTION_SAVE);
|
|
follow_info->follow_save_as_w = new_win;
|
|
|
|
/* Tuck away the follow_info object into the window */
|
|
OBJECT_SET_DATA(new_win, E_FOLLOW_INFO_KEY, follow_info);
|
|
|
|
SIGNAL_CONNECT(new_win, "destroy", follow_save_as_destroy_cb, follow_info);
|
|
|
|
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
|
|
if (gtk_dialog_run(GTK_DIALOG(new_win)) == GTK_RESPONSE_ACCEPT)
|
|
{
|
|
follow_save_as_ok_cb(new_win, new_win);
|
|
} else {
|
|
window_destroy(new_win);
|
|
}
|
|
#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(new_win)->ok_button,
|
|
"clicked", follow_save_as_ok_cb, new_win);
|
|
|
|
window_set_cancel_button(new_win,
|
|
GTK_FILE_SELECTION(new_win)->cancel_button, window_cancel_button_cb);
|
|
|
|
gtk_file_selection_set_filename(GTK_FILE_SELECTION(new_win), "");
|
|
|
|
SIGNAL_CONNECT(new_win, "delete_event", window_delete_event_cb, NULL);
|
|
|
|
gtk_widget_show_all(new_win);
|
|
window_present(new_win);
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
follow_save_as_ok_cb(GtkWidget * w _U_, gpointer fs)
|
|
{
|
|
gchar *to_name;
|
|
follow_info_t *follow_info;
|
|
FILE *fh;
|
|
print_stream_t *stream = NULL;
|
|
gchar *dirname;
|
|
|
|
#if (GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 4) || GTK_MAJOR_VERSION > 2
|
|
to_name = g_strdup(gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(fs)));
|
|
#else
|
|
to_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(to_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(to_name);
|
|
g_free(to_name);
|
|
file_selection_set_current_folder(fs, get_last_open_dir());
|
|
return;
|
|
}
|
|
|
|
follow_info = OBJECT_GET_DATA(fs, E_FOLLOW_INFO_KEY);
|
|
if (follow_info->show_type == SHOW_RAW) {
|
|
/* Write the data out as raw binary data */
|
|
fh = eth_fopen(to_name, "wb");
|
|
} else {
|
|
/* Write it out as text */
|
|
fh = eth_fopen(to_name, "w");
|
|
}
|
|
if (fh == NULL) {
|
|
open_failure_alert_box(to_name, errno, TRUE);
|
|
g_free(to_name);
|
|
return;
|
|
}
|
|
|
|
gtk_widget_hide(GTK_WIDGET(fs));
|
|
window_destroy(GTK_WIDGET(fs));
|
|
|
|
if (follow_info->show_type == SHOW_RAW) {
|
|
switch (follow_read_stream(follow_info, follow_write_raw, fh)) {
|
|
case FRS_OK:
|
|
if (fclose(fh) == EOF)
|
|
write_failure_alert_box(to_name, errno);
|
|
break;
|
|
|
|
case FRS_OPEN_ERROR:
|
|
case FRS_READ_ERROR:
|
|
fclose(fh);
|
|
break;
|
|
|
|
case FRS_PRINT_ERROR:
|
|
write_failure_alert_box(to_name, errno);
|
|
fclose(fh);
|
|
break;
|
|
}
|
|
} else {
|
|
stream = print_stream_text_stdio_new(fh);
|
|
switch (follow_read_stream(follow_info, follow_print_text, stream)) {
|
|
case FRS_OK:
|
|
if (!destroy_print_stream(stream))
|
|
write_failure_alert_box(to_name, errno);
|
|
break;
|
|
|
|
case FRS_OPEN_ERROR:
|
|
case FRS_READ_ERROR:
|
|
destroy_print_stream(stream);
|
|
break;
|
|
|
|
case FRS_PRINT_ERROR:
|
|
write_failure_alert_box(to_name, errno);
|
|
destroy_print_stream(stream);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Save the directory name for future file dialogs. */
|
|
dirname = get_dirname(to_name); /* Overwrites to_name */
|
|
set_last_open_dir(dirname);
|
|
g_free(to_name);
|
|
}
|
|
|
|
void
|
|
follow_save_as_destroy_cb(GtkWidget * win _U_, gpointer data)
|
|
{
|
|
follow_info_t *follow_info = data;
|
|
|
|
/* Note that we no longer have a dialog box. */
|
|
follow_info->follow_save_as_w = NULL;
|
|
}
|
|
|
|
/* XXX - can I emulate follow_charset_toggle_cb() instead of having
|
|
* 3 different functions here?
|
|
* That might not be a bad idea, as it might mean we only reload
|
|
* the window once, not twice - see follow_charset_toggle_cb()
|
|
* for an explanation. */
|
|
void
|
|
follow_stream_om_both(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
follow_info_t *follow_info = data;
|
|
follow_info->show_stream = BOTH_HOSTS;
|
|
follow_load_text(follow_info);
|
|
}
|
|
|
|
void
|
|
follow_stream_om_client(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
follow_info_t *follow_info = data;
|
|
follow_info->show_stream = FROM_CLIENT;
|
|
follow_load_text(follow_info);
|
|
}
|
|
|
|
void
|
|
follow_stream_om_server(GtkWidget *w _U_, gpointer data)
|
|
{
|
|
follow_info_t *follow_info = data;
|
|
follow_info->show_stream = FROM_SERVER;
|
|
follow_load_text(follow_info);
|
|
}
|
|
|
|
/* Add a "follow_info_t" structure to the list. */
|
|
void
|
|
remember_follow_info(follow_info_t *follow_info)
|
|
{
|
|
follow_infos = g_list_append(follow_infos, follow_info);
|
|
}
|
|
|
|
/* Remove a "follow_info_t" structure from the list. */
|
|
void
|
|
forget_follow_info(follow_info_t *follow_info)
|
|
{
|
|
follow_infos = g_list_remove(follow_infos, follow_info);
|
|
}
|
|
|