const gchar *
time_shift_settime(capture_file *cf, guint packet_num, const gchar *time_text)
{
nstime_t set_time, diff_time, packet_time;
frame_data *fd, *packetfd;
guint32 i;
const gchar *err_str;
if (!cf || !time_text)
return "Nothing to work with.";
if (packet_num < 1 || packet_num > cf->count)
return "Packet out of range.";
/*
* Get a copy of the real time (abs_ts - shift_offset) do we can find out the
* difference between the specified time and the original packet
*/
if ((packetfd = frame_data_sequence_find(cf->frames, packet_num)) == NULL)
return "No packets found.";
nstime_delta(&packet_time, &(packetfd->abs_ts), &(packetfd->shift_offset));
if ((err_str = time_string_to_nstime(time_text, &packet_time, &set_time)) != NULL)
return err_str;
/* Calculate difference between packet time and requested time */
nstime_delta(&diff_time, &set_time, &packet_time);
/* Up to here nothing is changed */
if ((fd = frame_data_sequence_find(cf->frames, 1)) == NULL)
return "No frames found."; /* Shouldn't happen */
modify_time_init(fd);
/* Set everything back to the original time */
for (i = 1; i <= cf->count; i++) {
if ((fd = frame_data_sequence_find(cf->frames, i)) == NULL)
continue; /* Shouldn't happen */
modify_time_perform(fd, SHIFT_POS, &diff_time, SHIFT_SETTOZERO);
}
packet_list_queue_draw();
return NULL;
}
const gchar *
time_shift_all(capture_file *cf, const gchar *offset_text)
{
nstime_t offset;
long double offset_float = 0;
guint32 i;
frame_data *fd;
gboolean neg;
int h, m;
long double f;
const gchar *err_str;
if (!cf || !offset_text)
return "Nothing to work with.";
if ((err_str = time_string_parse(offset_text, NULL, NULL, NULL, &neg, &h, &m, &f)) != NULL)
return err_str;
offset_float = h * 3600 + m * 60 + f;
if (offset_float == 0)
return "Offset is zero.";
nstime_set_zero(&offset);
offset.secs = (time_t)floorl(offset_float);
offset_float -= offset.secs;
offset.nsecs = (int)(offset_float * 1000000000);
if ((fd = frame_data_sequence_find(cf->frames, 1)) == NULL)
return "No frames found."; /* Shouldn't happen */
modify_time_init(fd);
for (i = 1; i <= cf->count; i++) {
if ((fd = frame_data_sequence_find(cf->frames, i)) == NULL)
continue; /* Shouldn't happen */
modify_time_perform(fd, neg ? SHIFT_NEG : SHIFT_POS, &offset, SHIFT_KEEPOFFSET);
}
packet_list_queue_draw();
return NULL;
}
const gchar *
time_shift_undo(capture_file *cf)
{
guint32 i;
frame_data *fd;
nstime_t nulltime;
if (!cf)
return "Nothing to work with.";
nulltime.secs = nulltime.nsecs = 0;
if (!frame_data_sequence_find(cf->frames, 1))
return "No frames found."; /* Shouldn't happen */
for (i = 1; i <= cf->count; i++) {
if ((fd = frame_data_sequence_find(cf->frames, i)) == NULL)
continue; /* Shouldn't happen */
modify_time_perform(fd, SHIFT_NEG, &nulltime, SHIFT_SETTOZERO);
}
packet_list_queue_draw();
return NULL;
}
const gchar *
time_shift_adjtime(capture_file *cf, guint packet1_num, const gchar *time1_text, guint packet2_num, const gchar *time2_text)
{
nstime_t nt1, nt2, ot1, ot2, nt3;
nstime_t dnt, dot, d3t;
frame_data *fd, *packet1fd, *packet2fd;
guint32 i;
const gchar *err_str;
if (!cf || !time1_text || !time2_text)
return "Nothing to work with.";
if (packet1_num < 1 || packet1_num > cf->count || packet2_num < 1 || packet2_num > cf->count)
return "Packet out of range.";
/*
* The following time format is allowed:
* [YYYY-MM-DD] hh:mm:ss(.decimals)?
*
* Since Wireshark doesn't support regular expressions (please prove me
* wrong :-) we will have to figure it out ourselves in the
* following order:
*
* 1. YYYY-MM-DD hh:mm:ss.decimals
* 2. hh:mm:ss.decimals
*
*/
/*
* Get a copy of the real time (abs_ts - shift_offset) do we can find out the
* difference between the specified time and the original packet
*/
if ((packet1fd = frame_data_sequence_find(cf->frames, packet1_num)) == NULL)
return "No frames found.";
nstime_copy(&ot1, &(packet1fd->abs_ts));
nstime_subtract(&ot1, &(packet1fd->shift_offset));
if ((err_str = time_string_to_nstime(time1_text, &ot1, &nt1)) != NULL)
return err_str;
/*
* Get a copy of the real time (abs_ts - shift_offset) do we can find out the
* difference between the specified time and the original packet
*/
if ((packet2fd = frame_data_sequence_find(cf->frames, packet2_num)) == NULL)
return "No frames found.";
nstime_copy(&ot2, &(packet2fd->abs_ts));
nstime_subtract(&ot2, &(packet2fd->shift_offset));
if ((err_str = time_string_to_nstime(time2_text, &ot2, &nt2)) != NULL)
return err_str;
nstime_copy(&dot, &ot2);
nstime_subtract(&dot, &ot1);
nstime_copy(&dnt, &nt2);
nstime_subtract(&dnt, &nt1);
/* Up to here nothing is changed */
if (!frame_data_sequence_find(cf->frames, 1))
return "No frames found."; /* Shouldn't happen */
for (i = 1; i <= cf->count; i++) {
if ((fd = frame_data_sequence_find(cf->frames, i)) == NULL)
continue; /* Shouldn't happen */
/* Set everything back to the original time */
nstime_subtract(&(fd->abs_ts), &(fd->shift_offset));
nstime_set_zero(&(fd->shift_offset));
/* Add the difference to each packet */
calcNT3(&ot1, &(fd->abs_ts), &nt1, &nt3, &dot, &dnt);
nstime_copy(&d3t, &nt3);
nstime_subtract(&d3t, &(fd->abs_ts));
modify_time_perform(fd, SHIFT_POS, &d3t, SHIFT_SETTOZERO);
}
packet_list_queue_draw();
return NULL;
}
