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/* file_dialog.c
* Common file dialog routines
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2006 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later*/
#include "config.h"
#include <time.h>
#include <glib.h>
#include <wsutil/nstime.h>
#include <wiretap/wtap.h>
#include <epan/prefs.h>
#include "ui/file_dialog.h"
ws_file_preview_times_status
get_times_for_preview(wtap *wth, ws_file_preview_times *times,
guint32 *num_packets, int *err, gchar **err_info)
{
gint64 data_offset;
const wtap_rec *rec;
guint32 packets;
gboolean have_times;
gboolean timed_out;
time_t time_preview, time_current;
double cur_time;
times->start_time = 0;
times->stop_time = 0;
packets = 0;
have_times = FALSE;
timed_out = FALSE;
time(&time_preview);
while ((wtap_read(wth, err, err_info, &data_offset))) {
rec = wtap_get_rec(wth);
if (rec->presence_flags & WTAP_HAS_TS) {
cur_time = nstime_to_sec(&rec->ts);
if (!have_times) {
times->start_time = cur_time;
times->stop_time = cur_time;
have_times = TRUE;
}
if (cur_time < times->start_time) {
times->start_time = cur_time;
}
if (cur_time > times->stop_time){
times->stop_time = cur_time;
}
}
packets++;
if (packets%1000 == 0) {
/* do we have a timeout? */
time(&time_current);
if (time_current-time_preview >= (time_t) prefs.gui_fileopen_preview) {
timed_out = TRUE;
break;
}
}
}
*num_packets = packets;
if (*err != 0) {
/* Read error. */
return PREVIEW_READ_ERROR;
}
if (have_times) {
if (timed_out)
return PREVIEW_TIMED_OUT;
else
return PREVIEW_HAVE_TIMES;
} else
return PREVIEW_HAVE_NO_TIMES;
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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