wireshark/epan/column-utils.h
Ronnie Sahlberg 4e4f6d67fa in svn 15335 the tcp analysis was changed to do its stuff and to populate (prepend to) COL_INFO before callking the subdissectors
instead of calling the tcp analysis (and prepend colingo) eitehr after the subdissector returned normally  or if an exception caused by a subdissector was rised.

this as a sideffect caused tcp analysis data to be overwritten if the subdissector caused any output to the info column. (and made tcp analysis suboptimal)


this change adds a new function   col_prepend_fence_fstr()  that will prepend
the info column with the string and also, if there was no fence already defined, create a fence and set it after the prepended col info text.

This way, even if the subdissectors generate and rewrite col info, the tcp analysis data will still be displayed on the info column.



svn path=/trunk/; revision=16116
2005-10-04 13:34:52 +00:00

210 lines
6.9 KiB
C

/* column-utils.h
* Definitions for column utility structures and routines
*
* $Id$
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __COLUMN_UTILS_H__
#define __COLUMN_UTILS_H__
#include <glib.h>
#include "gnuc_format_check.h"
#include "column_info.h"
#include "packet_info.h"
/** Maximum length of columns (except COL_INFO).
* Internal, don't use this in dissectors!
*/
#define COL_MAX_LEN 256
/** Maximum length of info columns (COL_INFO only).
* Internal, don't use this in dissectors!
*/
#define COL_MAX_INFO_LEN 4096
/** Allocate all the data structures for constructing column data, given
* the number of columns.
*
* Internal, don't use this in dissectors!
*/
extern void col_setup(column_info *cinfo, gint num_cols);
/** Initialize the data structures for constructing column data.
*
* Internal, don't use this in dissectors!
*/
extern void col_init(column_info *cinfo);
/** Set the format of the "variable time format".
*
* Internal, don't use this in dissectors!
*/
extern void col_set_cls_time(frame_data *, column_info *cinfo, gint col);
/** Fill in all columns of the given packet.
*
* Internal, don't use this in dissectors!
*/
extern void col_fill_in(packet_info *pinfo);
/* Utility routines used by packet*.c */
/** Are the columns writable?
*
* @param cinfo the current packet row
* @return TRUE if it's writable, FALSE if not
*/
extern gboolean col_get_writable(column_info *cinfo);
/** Set the columns writable.
*
* @param cinfo the current packet row
* @param writable TRUE if it's writable, FALSE if not
*/
extern void col_set_writable(column_info *cinfo, gboolean writable);
/** Check if the given column be filled with data.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
*/
extern gint check_col(column_info *cinfo, gint col);
/** Sets a fence for the current column content,
* so this content won't be affected by further col_... function calls.
*
* This can be useful if a protocol is more than once in a single packet,
* e.g. multiple HTTP calls in a single TCP packet.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
*/
extern void col_set_fence(column_info *cinfo, gint col);
/** Clears the text of a column element.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
*/
extern void col_clear(column_info *cinfo, gint col);
/** Set (replace) the text of a column element, the text won't be copied.
*
* Usually used to set const strings!
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param str the string to set
*/
extern void col_set_str(column_info *cinfo, gint col, const gchar * str);
/** Add (replace) the text of a column element, the text will be copied.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param str the string to add
*/
extern void col_add_str(column_info *cinfo, gint col, const gchar *str);
/** Add (replace) the text of a column element, the text will be formatted and copied.
*
* Same function as col_add_str() but using a printf-like format string.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param format the format string
* @param ... the variable number of parameters
*/
extern void col_add_fstr(column_info *cinfo, gint col, const gchar *format, ...)
GNUC_FORMAT_CHECK(printf, 3, 4);
/** Append the given text to a column element, the text will be copied.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param str the string to append
*/
extern void col_append_str(column_info *cinfo, gint col, const gchar *str);
/** Append the given text to a column element, the text will be formatted and copied.
*
* Same function as col_append_str() but using a printf-like format string.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param format the format string
* @param ... the variable number of parameters
*/
extern void col_append_fstr(column_info *cinfo, gint col, const gchar *format, ...)
GNUC_FORMAT_CHECK(printf, 3, 4);
/** Prepend the given text to a column element, the text will be formatted and copied.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param format the format string
* @param ... the variable number of parameters
*/
extern void col_prepend_fstr(column_info *cinfo, gint col, const gchar *format, ...)
GNUC_FORMAT_CHECK(printf, 3, 4);
/**Prepend the given text to a column element, the text will be formatted and copied.
* This function is similar to col_prepend_fstr() but this function will
* unconditionally set a fence to the end of the prepended data even if there
* were no fence before.
* The col_prepend_fstr() will only prepend the data before the fence IFF
* there is already a fence created. This function will create a fence in case
* it does not yet exist.
*/
extern void col_prepend_fence_fstr(column_info *cinfo, gint col, const gchar *format, ...)
GNUC_FORMAT_CHECK(printf, 3, 4);
/** Append the given text (prepended by a separator) to a column element.
*
* Much like col_append_str() but will prepend the given separator if the column isn't empty.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param sep the separator string or NULL for default: ", "
* @param str the string to append
*/
extern void col_append_sep_str(column_info *cinfo, gint col, const gchar *sep,
const gchar *str);
/** Append the given text (prepended by a separator) to a column element.
*
* Much like col_append_fstr() but will prepend the given separator if the column isn't empty.
*
* @param cinfo the current packet row
* @param col the column to use, e.g. COL_INFO
* @param sep the separator string or NULL for default: ", "
* @param format the format string
* @param ... the variable number of parameters
*/
extern void col_append_sep_fstr(column_info *cinfo, gint col, const gchar *sep,
const gchar *format, ...)
GNUC_FORMAT_CHECK(printf, 4, 5);
#endif /* __COLUMN_UTILS_H__ */