![Guy Harris](/assets/img/avatar_default.png)
Change-Id: Id3b0430a1d462b29833259462536ed4cb0424f77 Reviewed-on: https://code.wireshark.org/review/22662 Reviewed-by: Guy Harris <guy@alum.mit.edu>
763 lines
24 KiB
C
763 lines
24 KiB
C
/* file.h
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* Definitions for file structures and routines
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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 USA.
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*/
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#ifndef __FILE_H__
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#define __FILE_H__
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#include "wiretap/wtap.h"
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#include <errno.h>
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#include <epan/epan.h>
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#include <epan/print.h>
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#include <ui/packet_range.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/** Return values from functions that only can succeed or fail. */
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typedef enum {
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CF_OK, /**< operation succeeded */
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CF_ERROR /**< operation got an error (function may provide err with details) */
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} cf_status_t;
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/** Return values from functions that read capture files. */
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typedef enum {
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CF_READ_OK, /**< operation succeeded */
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CF_READ_ERROR, /**< operation got an error (function may provide err with details) */
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CF_READ_ABORTED /**< operation aborted by user */
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} cf_read_status_t;
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/** Return values from functions that write out packets. */
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typedef enum {
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CF_WRITE_OK, /**< operation succeeded */
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CF_WRITE_ERROR, /**< operation got an error (function may provide err with details) */
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CF_WRITE_ABORTED /**< operation aborted by user */
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} cf_write_status_t;
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/** Return values from functions that print sets of packets. */
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typedef enum {
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CF_PRINT_OK, /**< print operation succeeded */
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CF_PRINT_OPEN_ERROR, /**< print operation failed while opening printer */
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CF_PRINT_WRITE_ERROR /**< print operation failed while writing to the printer */
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} cf_print_status_t;
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typedef enum {
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cf_cb_file_opened,
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cf_cb_file_closing,
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cf_cb_file_closed,
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cf_cb_file_read_started,
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cf_cb_file_read_finished,
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cf_cb_file_reload_started,
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cf_cb_file_reload_finished,
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cf_cb_file_rescan_started,
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cf_cb_file_rescan_finished,
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cf_cb_file_retap_started,
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cf_cb_file_retap_finished,
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cf_cb_file_merge_started, /* Qt only */
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cf_cb_file_merge_finished, /* Qt only */
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cf_cb_file_fast_save_finished, /* GTK+ only? */
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cf_cb_packet_selected, /* GTK+ only. */
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cf_cb_packet_unselected, /* GTK+ only. */
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cf_cb_field_unselected, /* GTK+ only. */
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cf_cb_file_save_started,
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cf_cb_file_save_finished,
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cf_cb_file_save_failed,
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cf_cb_file_save_stopped,
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cf_cb_file_export_specified_packets_started, /* GTK+ only. */
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cf_cb_file_export_specified_packets_finished, /* GTK+ only. */
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cf_cb_file_export_specified_packets_failed, /* GTK+ only. */
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cf_cb_file_export_specified_packets_stopped /* GTK+ only. */
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} cf_cbs;
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typedef void (*cf_callback_t) (gint event, gpointer data, gpointer user_data);
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typedef struct {
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const char *string;
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size_t string_len;
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capture_file *cf;
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gboolean frame_matched;
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field_info *finfo;
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} match_data;
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/**
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* Add a capture file event callback.
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*
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* @param func The function to be called for each event.
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* The function will be passed three parameters: The event type (event),
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* event-dependent data (data), and user-supplied data (user_data).
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* Event-dependent data may be a capture_file pointer, character pointer,
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* or NULL.
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* @param user_data User-supplied data to pass to the callback. May be NULL.
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*/
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extern void
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cf_callback_add(cf_callback_t func, gpointer user_data);
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/**
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* Remove a capture file event callback.
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*
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* @param func The function to be removed.
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* @param user_data User-supplied data. Must be the same value supplied to cf_callback_add.
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*/
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extern void
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cf_callback_remove(cf_callback_t func, gpointer user_data);
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/**
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* Open a capture file.
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*
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* @param cf the capture file to be opened
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* @param fname the filename to be opened
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* @param type WTAP_TYPE_AUTO for automatic or index to direct open routine
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* @param is_tempfile is this a temporary file?
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* @param err error code
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* @return one of cf_status_t
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*/
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cf_status_t cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err);
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/**
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* Close a capture file.
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*
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* @param cf the capture file to be closed
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*/
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void cf_close(capture_file *cf);
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/**
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* Reload a capture file.
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*
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* @param cf the capture file to be reloaded
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*/
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void cf_reload(capture_file *cf);
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/**
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* Read all packets of a capture file into the internal structures.
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*
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* @param cf the capture file to be read
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* @param from_save reread asked from cf_save_records
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* @return one of cf_read_status_t
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*/
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cf_read_status_t cf_read(capture_file *cf, gboolean from_save);
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/**
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* Read the metadata and raw data for a record. It will pop
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* up an alert box if there's an error.
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*
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* @param cf the capture file from which to read the record
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* @param fdata the frame_data structure for the record in question
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* @param phdr pointer to a wtap_pkthdr structure to contain the
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* record's metadata
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* @param buf a Buffer into which to read the record's raw data
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* @return TRUE if the read succeeded, FALSE if there was an error
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*/
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gboolean cf_read_record_r(capture_file *cf, const frame_data *fdata,
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struct wtap_pkthdr *phdr, Buffer *buf);
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/**
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* Read the metadata and raw data for a record into a
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* capture_file structure's phdr and buf members.
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* It will pop up an alert box if there's an error.
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*
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* @param cf the capture file from which to read the record
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* @param fdata the frame_data structure for the record in question
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* @return TRUE if the read succeeded, FALSE if there was an error
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*/
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gboolean cf_read_record(capture_file *cf, frame_data *fdata);
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/**
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* Read packets from the "end" of a capture file.
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*
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* @param cf the capture file to be read from
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* @param to_read the number of packets to read
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* @param err the error code, if an error had occurred
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* @return one of cf_read_status_t
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*/
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cf_read_status_t cf_continue_tail(capture_file *cf, volatile int to_read, int *err);
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/**
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* Fake reading packets from the "end" of a capture file.
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*
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* @param cf the capture file to be read from
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*/
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void cf_fake_continue_tail(capture_file *cf);
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/**
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* Finish reading from "end" of a capture file.
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*
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* @param cf the capture file to be read from
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* @param err the error code, if an error had occurred
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* @return one of cf_read_status_t
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*/
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cf_read_status_t cf_finish_tail(capture_file *cf, int *err);
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/**
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* Determine whether this capture file (or a range of it) can be written
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* in any format using Wiretap rather than by copying the raw data.
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*
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* @param cf the capture file to check
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* @return TRUE if it can be written, FALSE if it can't
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*/
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gboolean cf_can_write_with_wiretap(capture_file *cf);
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/**
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* Determine whether this capture file can be saved with a "save" operation;
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* if there's nothing unsaved, it can't.
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*
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* @param cf the capture file to check
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* @return TRUE if it can be saved, FALSE if it can't
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*/
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gboolean cf_can_save(capture_file *cf);
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/**
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* Determine whether this capture file can be saved with a "save as" operation.
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*
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* @param cf the capture file to check
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* @return TRUE if it can be saved, FALSE if it can't
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*/
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gboolean cf_can_save_as(capture_file *cf);
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/**
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* Determine whether this capture file has unsaved data.
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*
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* @param cf the capture file to check
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* @return TRUE if it has unsaved data, FALSE if it doesn't
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*/
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gboolean cf_has_unsaved_data(capture_file *cf);
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/**
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* Save all packets in a capture file to a new file, and, if that succeeds,
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* make that file the current capture file. If there's already a file with
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* that name, do a "safe save", writing to a temporary file in the same
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* directory and, if the write succeeds, renaming the new file on top of the
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* old file, so that if the write fails, the old file is still intact.
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*
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* @param cf the capture file to save to
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* @param fname the filename to save to
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* @param save_format the format of the file to save (libpcap, ...)
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* @param compressed whether to gzip compress the file
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* @param discard_comments TRUE if we should discard comments if the save
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* succeeds (because we saved in a format that doesn't support
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* comments)
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* @param dont_reopen TRUE if it shouldn't reopen and make that file the
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* current capture file
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* @return one of cf_write_status_t
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*/
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cf_write_status_t cf_save_records(capture_file * cf, const char *fname,
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guint save_format, gboolean compressed,
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gboolean discard_comments,
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gboolean dont_reopen);
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/**
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* Export some or all packets from a capture file to a new file. If there's
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* already a file with that name, do a "safe save", writing to a temporary
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* file in the same directory and, if the write succeeds, renaming the new
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* file on top of the old file, so that if the write fails, the old file is
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* still intact.
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*
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* @param cf the capture file to write to
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* @param fname the filename to write to
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* @param range the range of packets to write
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* @param save_format the format of the file to write (libpcap, ...)
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* @param compressed whether to gzip compress the file
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* @return one of cf_write_status_t
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*/
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cf_write_status_t cf_export_specified_packets(capture_file *cf,
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const char *fname,
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packet_range_t *range,
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guint save_format,
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gboolean compressed);
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/**
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* Get a displayable name of the capture file.
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*
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* @param cf the capture file
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* @return the displayable name (must be g_free'd)
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*/
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gchar *cf_get_display_name(capture_file *cf);
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/**
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* Set the source of the capture data for temporary files, e.g.
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* "Interface eth0" or "Pipe from Pong"
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*
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* @param cf the capture file
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* @param source the source description. this will be copied internally.
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*/
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void cf_set_tempfile_source(capture_file *cf, gchar *source);
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/**
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* Get the source of the capture data for temporary files. Guaranteed to
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* return a non-null value. The returned value should not be freed.
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*
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* @param cf the capture file
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*/
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const gchar *cf_get_tempfile_source(capture_file *cf);
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/**
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* Get the number of packets in the capture file.
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*
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* @param cf the capture file
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* @return the number of packets in the capture file
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*/
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int cf_get_packet_count(capture_file *cf);
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/**
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* Is this capture file a temporary file?
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*
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* @param cf the capture file
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* @return TRUE if it's a temporary file, FALSE otherwise
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*/
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gboolean cf_is_tempfile(capture_file *cf);
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/**
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* Set flag, that this file is a tempfile.
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*/
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void cf_set_tempfile(capture_file *cf, gboolean is_tempfile);
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/**
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* Set flag, if the number of packet drops while capturing are known or not.
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*
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* @param cf the capture file
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* @param drops_known TRUE if the number of packet drops are known, FALSE otherwise
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*/
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void cf_set_drops_known(capture_file *cf, gboolean drops_known);
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/**
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* Set the number of packet drops while capturing.
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*
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* @param cf the capture file
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* @param drops the number of packet drops occurred while capturing
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*/
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void cf_set_drops(capture_file *cf, guint32 drops);
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/**
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* Get flag state, if the number of packet drops while capturing are known or not.
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*
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* @param cf the capture file
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* @return TRUE if the number of packet drops are known, FALSE otherwise
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*/
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gboolean cf_get_drops_known(capture_file *cf);
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/**
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* Get the number of packet drops while capturing.
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*
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* @param cf the capture file
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* @return the number of packet drops occurred while capturing
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*/
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guint32 cf_get_drops(capture_file *cf);
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/**
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* Set the read filter.
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* @todo this shouldn't be required, remove it somehow
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*
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* @param cf the capture file
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* @param rfcode the readfilter
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*/
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void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode);
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/**
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* "Display Filter" packets in the capture file.
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*
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* @param cf the capture file
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* @param dfilter the display filter
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* @param force TRUE if do in any case, FALSE only if dfilter changed
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* @return one of cf_status_t
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*/
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cf_status_t cf_filter_packets(capture_file *cf, gchar *dfilter, gboolean force);
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/**
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* At least one "Refence Time" flag has changed, rescan all packets.
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*
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* @param cf the capture file
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*/
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void cf_reftime_packets(capture_file *cf);
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/**
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* Return the time it took to load the file (in msec).
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*/
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gulong cf_get_computed_elapsed(capture_file *cf);
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/**
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* "Something" has changed, rescan all packets.
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*
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* @param cf the capture file
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*/
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void cf_redissect_packets(capture_file *cf);
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/**
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* Rescan all packets and just run taps - don't reconstruct the display.
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*
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* @param cf the capture file
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* @return one of cf_read_status_t
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*/
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cf_read_status_t cf_retap_packets(capture_file *cf);
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/**
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* Adjust timestamp precision if auto is selected.
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*
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* @param cf the capture file
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*/
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void cf_timestamp_auto_precision(capture_file *cf);
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/* print_range, enum which frames should be printed */
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typedef enum {
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print_range_selected_only, /* selected frame(s) only (currently only one) */
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print_range_marked_only, /* marked frames only */
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print_range_all_displayed, /* all frames currently displayed */
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print_range_all_captured /* all frames in capture */
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} print_range_e;
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typedef struct {
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print_stream_t *stream; /* the stream to which we're printing */
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print_format_e format; /* plain text or PostScript */
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gboolean to_file; /* TRUE if we're printing to a file */
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char *file; /* file output pathname */
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char *cmd; /* print command string (not win32) */
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packet_range_t range;
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gboolean print_summary; /* TRUE if we should print summary line. */
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gboolean print_col_headings; /* TRUE if we should print column headings */
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print_dissections_e print_dissections;
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gboolean print_hex; /* TRUE if we should print hex data;
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* FALSE if we should print only if not dissected. */
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gboolean print_formfeed; /* TRUE if a formfeed should be printed before
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* each new packet */
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} print_args_t;
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/**
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* Print the capture file.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to print
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* @param show_progress_bar TRUE if a progress bar is to be shown
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_print_packets(capture_file *cf, print_args_t *print_args,
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gboolean show_progress_bar);
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/**
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* Print (export) the capture file into PDML format.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to export
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_write_pdml_packets(capture_file *cf, print_args_t *print_args);
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/**
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* Print (export) the capture file into PSML format.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to export
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_write_psml_packets(capture_file *cf, print_args_t *print_args);
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/**
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* Print (export) the capture file into CSV format.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to export
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_write_csv_packets(capture_file *cf, print_args_t *print_args);
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/**
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* Print (export) the capture file into C Arrays format.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to export
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_write_carrays_packets(capture_file *cf, print_args_t *print_args);
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/**
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* Print (export) the capture file into JSON format.
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*
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* @param cf the capture file
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* @param print_args the arguments what and how to export
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* @return one of cf_print_status_t
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*/
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cf_print_status_t cf_write_json_packets(capture_file *cf, print_args_t *print_args);
|
|
|
|
/**
|
|
* Find packet with a protocol tree item that contains a specified text string.
|
|
*
|
|
* @param cf the capture file
|
|
* @param string the string to find
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_protocol_tree(capture_file *cf, const char *string,
|
|
search_direction dir);
|
|
|
|
/**
|
|
* Find field with a label that contains text string cfile->sfilter.
|
|
*
|
|
* @param cf the capture file
|
|
* @param tree the protocol tree
|
|
* @param mdata the first field (mdata->finfo) that matched the string
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
extern gboolean cf_find_string_protocol_tree(capture_file *cf, proto_tree *tree,
|
|
match_data *mdata);
|
|
|
|
/**
|
|
* Find packet whose summary line contains a specified text string.
|
|
*
|
|
* @param cf the capture file
|
|
* @param string the string to find
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_summary_line(capture_file *cf, const char *string,
|
|
search_direction dir);
|
|
|
|
/**
|
|
* Find packet whose data contains a specified byte string.
|
|
*
|
|
* @param cf the capture file
|
|
* @param string the string to find
|
|
* @param string_size the size of the string to find
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_data(capture_file *cf, const guint8 *string,
|
|
size_t string_size, search_direction dir);
|
|
|
|
/**
|
|
* Find packet that matches a compiled display filter.
|
|
*
|
|
* @param cf the capture file
|
|
* @param sfcode the display filter to match
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode,
|
|
search_direction dir);
|
|
|
|
/**
|
|
* Find packet that matches a display filter given as a text string.
|
|
*
|
|
* @param cf the capture file
|
|
* @param filter the display filter to match
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean
|
|
cf_find_packet_dfilter_string(capture_file *cf, const char *filter,
|
|
search_direction dir);
|
|
|
|
/**
|
|
* Find marked packet.
|
|
*
|
|
* @param cf the capture file
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_marked(capture_file *cf, search_direction dir);
|
|
|
|
/**
|
|
* Find time-reference packet.
|
|
*
|
|
* @param cf the capture file
|
|
* @param dir direction in which to search
|
|
* @return TRUE if a packet was found, FALSE otherwise
|
|
*/
|
|
gboolean cf_find_packet_time_reference(capture_file *cf, search_direction dir);
|
|
|
|
/**
|
|
* GoTo Packet with the given row.
|
|
*
|
|
* @param cf the capture file
|
|
* @param row the row to go to
|
|
* @return TRUE if this row exists, FALSE otherwise
|
|
*/
|
|
gboolean cf_goto_frame(capture_file *cf, guint row);
|
|
|
|
/**
|
|
* Go to frame specified by currently selected protocol tree field.
|
|
* (Go To Corresponding Packet)
|
|
* @todo this is ugly and should be improved!
|
|
*
|
|
* @param cf the capture file
|
|
* @return TRUE if this packet exists, FALSE otherwise
|
|
*/
|
|
gboolean cf_goto_framenum(capture_file *cf);
|
|
|
|
/**
|
|
* Select the packet in the given row.
|
|
*
|
|
* @param cf the capture file
|
|
* @param row the row to select
|
|
*/
|
|
void cf_select_packet(capture_file *cf, int row);
|
|
|
|
/**
|
|
* Unselect all packets, if any.
|
|
*
|
|
* @param cf the capture file
|
|
*/
|
|
void cf_unselect_packet(capture_file *cf);
|
|
|
|
/**
|
|
* Unselect all protocol tree fields, if any.
|
|
*
|
|
* @param cf the capture file
|
|
*/
|
|
void cf_unselect_field(capture_file *cf);
|
|
|
|
/**
|
|
* Mark a particular frame in a particular capture.
|
|
*
|
|
* @param cf the capture file
|
|
* @param frame the frame to be marked
|
|
*/
|
|
void cf_mark_frame(capture_file *cf, frame_data *frame);
|
|
|
|
/**
|
|
* Unmark a particular frame in a particular capture.
|
|
*
|
|
* @param cf the capture file
|
|
* @param frame the frame to be unmarked
|
|
*/
|
|
void cf_unmark_frame(capture_file *cf, frame_data *frame);
|
|
|
|
/**
|
|
* Ignore a particular frame in a particular capture.
|
|
*
|
|
* @param cf the capture file
|
|
* @param frame the frame to be ignored
|
|
*/
|
|
void cf_ignore_frame(capture_file *cf, frame_data *frame);
|
|
|
|
/**
|
|
* Unignore a particular frame in a particular capture.
|
|
*
|
|
* @param cf the capture file
|
|
* @param frame the frame to be unignored
|
|
*/
|
|
void cf_unignore_frame(capture_file *cf, frame_data *frame);
|
|
|
|
/**
|
|
* Merge two or more capture files into a temporary file.
|
|
* @todo is this the right place for this function? It doesn't have to do a lot with capture_file.
|
|
*
|
|
* @param pd_window Window pointer suitable for use by delayed_create_progress_dlg.
|
|
* @param out_filenamep Points to a pointer that's set to point to the
|
|
* pathname of the temporary file; it's allocated with g_malloc()
|
|
* @param in_file_count the number of input files to merge
|
|
* @param in_filenames array of input filenames
|
|
* @param file_type the output filetype
|
|
* @param do_append FALSE to merge chronologically, TRUE simply append
|
|
* @return one of cf_status_t
|
|
*/
|
|
cf_status_t
|
|
cf_merge_files_to_tempfile(gpointer pd_window, char **out_filenamep,
|
|
int in_file_count, char *const *in_filenames,
|
|
int file_type, gboolean do_append);
|
|
|
|
|
|
/**
|
|
* Get the comment on a capture from the SHB data block
|
|
* XXX - should support multiple sections.
|
|
*
|
|
* @param cf the capture file
|
|
*/
|
|
const gchar* cf_read_section_comment(capture_file *cf);
|
|
|
|
/**
|
|
* Update(replace) the comment on a capture from the SHB data block
|
|
* XXX - should support multiple sections.
|
|
*
|
|
* @param cf the capture file
|
|
* @param comment the string replacing the old comment
|
|
*/
|
|
void cf_update_section_comment(capture_file *cf, gchar *comment);
|
|
|
|
/*
|
|
* Get the comment on a packet (record).
|
|
* If the comment has been edited, it returns the result of the edit,
|
|
* otherwise it returns the comment from the file.
|
|
*
|
|
* @param cf the capture file
|
|
* @param fd the frame_data structure for the frame
|
|
*/
|
|
char *cf_get_packet_comment(capture_file *cf, const frame_data *fd);
|
|
|
|
/**
|
|
* Update(replace) the comment on a capture from a frame
|
|
*
|
|
* @param cf the capture file
|
|
* @param fd the frame_data structure for the frame
|
|
* @param new_comment the string replacing the old comment
|
|
*/
|
|
gboolean cf_set_user_packet_comment(capture_file *cf, frame_data *fd, const gchar *new_comment);
|
|
|
|
/**
|
|
* What types of comments does this file have?
|
|
*
|
|
* @param cf the capture file
|
|
* @return bitset of WTAP_COMMENT_ values
|
|
*/
|
|
guint32 cf_comment_types(capture_file *cf);
|
|
|
|
/**
|
|
* Add a resolved address to this file's list of resolved addresses.
|
|
*
|
|
* @param cf the capture file
|
|
* @param addr a string representing an IPv4 or IPv6 address
|
|
* @param name a string containing a name corresponding to that address
|
|
* @return TRUE if it succeeds, FALSE if not
|
|
*/
|
|
gboolean cf_add_ip_name_from_string(capture_file *cf, const char *addr, const char *name);
|
|
|
|
#ifdef WANT_PACKET_EDITOR
|
|
/**
|
|
* Give a frame new, edited data.
|
|
*
|
|
* @param cf the capture file
|
|
* @param fd frame_data structure for the frame
|
|
* @param phdr the struct wtap_pkthdr for the frame
|
|
* @param pd the raw packet data for the frame
|
|
*/
|
|
void cf_set_frame_edited(capture_file *cf, frame_data *fd, struct wtap_pkthdr *phdr, guint8 *pd);
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* file.h */
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|