6 * Ethereal - Network traffic analyzer
7 * By Gerald Combs <gerald@ethereal.com>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
46 #ifdef NEED_STRERROR_H
50 #include <epan/epan.h>
51 #include <epan/filesystem.h>
54 #include "color_filters.h"
55 #include <epan/column.h>
56 #include <epan/packet.h>
57 #include "packet-range.h"
63 #include "alert_box.h"
64 #include "simple_dialog.h"
65 #include "progress_dlg.h"
67 #include <epan/prefs.h>
68 #include <epan/dfilter/dfilter.h>
69 #include <epan/conversation.h>
70 #include <epan/epan_dissect.h>
72 #include "stat_menu.h"
73 #include "tap_dfilter_dlg.h"
74 #include <epan/dissectors/packet-data.h>
75 #include <epan/timestamp.h>
76 #include "file_util.h"
81 gboolean auto_scroll_live;
84 static nstime_t first_ts;
85 static nstime_t prev_ts;
86 static guint32 cum_bytes = 0;
88 static void cf_reset_state(capture_file *cf);
90 static void read_packet(capture_file *cf, long offset);
92 static void rescan_packets(capture_file *cf, const char *action, const char *action_item,
93 gboolean refilter, gboolean redissect);
95 static gboolean match_protocol_tree(capture_file *cf, frame_data *fdata,
97 static void match_subtree_text(proto_node *node, gpointer data);
98 static gboolean match_summary_line(capture_file *cf, frame_data *fdata,
100 static gboolean match_ascii_and_unicode(capture_file *cf, frame_data *fdata,
102 static gboolean match_ascii(capture_file *cf, frame_data *fdata,
104 static gboolean match_unicode(capture_file *cf, frame_data *fdata,
106 static gboolean match_binary(capture_file *cf, frame_data *fdata,
108 static gboolean match_dfilter(capture_file *cf, frame_data *fdata,
110 static gboolean find_packet(capture_file *cf,
111 gboolean (*match_function)(capture_file *, frame_data *, void *),
114 static void cf_open_failure_alert_box(const char *filename, int err,
115 gchar *err_info, gboolean for_writing,
117 static const char *file_rename_error_message(int err);
118 static void cf_write_failure_alert_box(const char *filename, int err);
119 static void cf_close_failure_alert_box(const char *filename, int err);
120 static gboolean copy_binary_file(const char *from_filename, const char *to_filename);
122 /* Update the progress bar this many times when reading a file. */
123 #define N_PROGBAR_UPDATES 100
125 /* Number of "frame_data" structures per memory chunk.
126 XXX - is this the right number? */
127 #define FRAME_DATA_CHUNK_SIZE 1024
130 /* one callback for now, we could have a list later */
131 static cf_callback_t cf_cb = NULL;
132 static gpointer cf_cb_user_data = NULL;
135 cf_callback_invoke(int event, gpointer data)
137 g_assert(cf_cb != NULL);
138 cf_cb(event, data, cf_cb_user_data);
143 cf_callback_add(cf_callback_t func, gpointer user_data)
145 /* More than one callback listener is currently not implemented,
146 but should be easy to do. */
147 g_assert(cf_cb == NULL);
149 cf_cb_user_data = user_data;
153 cf_callback_remove(cf_callback_t func _U_)
155 g_assert(cf_cb != NULL);
157 cf_cb_user_data = NULL;
161 cf_timestamp_auto_precision(capture_file *cf)
163 int prec = timestamp_get_precision();
166 /* don't try to get the file's precision if none is opened */
167 if(cf->state == FILE_CLOSED) {
171 /* if we are in auto mode, set precision of current file */
172 if(prec == TS_PREC_AUTO ||
173 prec == TS_PREC_AUTO_SEC ||
174 prec == TS_PREC_AUTO_DSEC ||
175 prec == TS_PREC_AUTO_CSEC ||
176 prec == TS_PREC_AUTO_MSEC ||
177 prec == TS_PREC_AUTO_USEC ||
178 prec == TS_PREC_AUTO_NSEC)
180 switch(wtap_file_tsprecision(cf->wth)) {
181 case(WTAP_FILE_TSPREC_SEC):
182 timestamp_set_precision(TS_PREC_AUTO_SEC);
184 case(WTAP_FILE_TSPREC_DSEC):
185 timestamp_set_precision(TS_PREC_AUTO_DSEC);
187 case(WTAP_FILE_TSPREC_CSEC):
188 timestamp_set_precision(TS_PREC_AUTO_CSEC);
190 case(WTAP_FILE_TSPREC_MSEC):
191 timestamp_set_precision(TS_PREC_AUTO_MSEC);
193 case(WTAP_FILE_TSPREC_USEC):
194 timestamp_set_precision(TS_PREC_AUTO_USEC);
196 case(WTAP_FILE_TSPREC_NSEC):
197 timestamp_set_precision(TS_PREC_AUTO_NSEC);
200 g_assert_not_reached();
207 cf_open(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
212 wth = wtap_open_offline(fname, err, &err_info, TRUE);
216 /* The open succeeded. Close whatever capture file we had open,
217 and fill in the information for this file. */
220 /* Initialize all data structures used for dissection. */
223 /* We're about to start reading the file. */
224 cf->state = FILE_READ_IN_PROGRESS;
229 /* Set the file name because we need it to set the follow stream filter.
230 XXX - is that still true? We need it for other reasons, though,
232 cf->filename = g_strdup(fname);
234 /* Indicate whether it's a permanent or temporary file. */
235 cf->is_tempfile = is_tempfile;
237 /* If it's a temporary capture buffer file, mark it as not saved. */
238 cf->user_saved = !is_tempfile;
240 cf->cd_t = wtap_file_type(cf->wth);
242 cf->displayed_count = 0;
243 cf->marked_count = 0;
244 cf->drops_known = FALSE;
246 cf->snap = wtap_snapshot_length(cf->wth);
248 /* Snapshot length not known. */
249 cf->has_snap = FALSE;
250 cf->snap = WTAP_MAX_PACKET_SIZE;
253 nstime_set_zero(&cf->elapsed_time);
254 nstime_set_zero(&first_ts);
255 nstime_set_zero(&prev_ts);
257 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
259 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
261 g_assert(cf->plist_chunk);
263 /* change the time formats now, as we might have a new precision */
264 cf_change_time_formats(cf);
266 fileset_file_opened(fname);
271 cf_open_failure_alert_box(fname, *err, err_info, FALSE, 0);
277 * Reset the state for the currently closed file, but don't do the
278 * UI callbacks; this is for use in "cf_open()", where we don't
279 * want the UI to go from "file open" to "file closed" back to
280 * "file open", we want it to go from "old file open" to "new file
281 * open and being read".
284 cf_reset_state(capture_file *cf)
286 /* Die if we're in the middle of reading a file. */
287 g_assert(cf->state != FILE_READ_IN_PROGRESS);
293 /* We have no file open... */
294 if (cf->filename != NULL) {
295 /* If it's a temporary file, remove it. */
297 eth_unlink(cf->filename);
298 g_free(cf->filename);
301 /* ...which means we have nothing to save. */
302 cf->user_saved = FALSE;
304 if (cf->plist_chunk != NULL) {
305 g_mem_chunk_destroy(cf->plist_chunk);
306 cf->plist_chunk = NULL;
308 if (cf->rfcode != NULL) {
309 dfilter_free(cf->rfcode);
313 cf->plist_end = NULL;
314 cf_unselect_packet(cf); /* nothing to select */
315 cf->first_displayed = NULL;
316 cf->last_displayed = NULL;
318 /* No frame selected, no field in that frame selected. */
319 cf->current_frame = NULL;
320 cf->finfo_selected = NULL;
322 /* Clear the packet list. */
323 packet_list_freeze();
329 nstime_set_zero(&cf->elapsed_time);
331 reset_tap_listeners();
333 /* We have no file open. */
334 cf->state = FILE_CLOSED;
336 fileset_file_closed();
339 /* Reset everything to a pristine state */
341 cf_close(capture_file *cf)
343 /* do GUI things even if file is already closed,
344 * e.g. to cleanup things if a capture couldn't be started */
345 cf_callback_invoke(cf_cb_file_closing, cf);
347 /* close things, if not already closed before */
348 if(cf->state != FILE_CLOSED) {
352 cleanup_dissection();
355 cf_callback_invoke(cf_cb_file_closed, cf);
359 cf_read(capture_file *cf)
363 const gchar *name_ptr;
365 char errmsg_errno[1024+1];
366 gchar err_str[2048+1];
368 progdlg_t *progbar = NULL;
370 gint64 size, file_pos;
373 gchar status_str[100];
374 gint64 progbar_nextstep;
375 gint64 progbar_quantum;
379 reset_tap_listeners();
380 tap_dfilter_dlg_update();
382 cf_callback_invoke(cf_cb_file_read_start, cf);
384 name_ptr = get_basename(cf->filename);
386 /* Find the size of the file. */
387 size = wtap_file_size(cf->wth, NULL);
389 /* Update the progress bar when it gets to this value. */
390 progbar_nextstep = 0;
391 /* When we reach the value that triggers a progress bar update,
392 bump that value by this amount. */
394 progbar_quantum = size/N_PROGBAR_UPDATES;
397 /* Progress so far. */
400 packet_list_freeze();
403 g_get_current_time(&start_time);
405 while ((wtap_read(cf->wth, &err, &err_info, &data_offset))) {
407 /* Create the progress bar if necessary.
408 We check on every iteration of the loop, so that it takes no
409 longer than the standard time to create it (otherwise, for a
410 large file, we might take considerably longer than that standard
411 time in order to get to the next progress bar step). */
412 if (progbar == NULL) {
413 progbar = delayed_create_progress_dlg("Loading", name_ptr,
414 TRUE, &stop_flag, &start_time, progbar_val);
417 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
418 when we update it, we have to run the GTK+ main loop to get it
419 to repaint what's pending, and doing so may involve an "ioctl()"
420 to see if there's any pending input from an X server, and doing
421 that for every packet can be costly, especially on a big file. */
422 if (data_offset >= progbar_nextstep) {
423 file_pos = wtap_read_so_far(cf->wth, NULL);
424 progbar_val = (gfloat) file_pos / (gfloat) size;
425 if (progbar_val > 1.0) {
426 /* The file probably grew while we were reading it.
427 Update file size, and try again. */
428 size = wtap_file_size(cf->wth, NULL);
430 progbar_val = (gfloat) file_pos / (gfloat) size;
431 /* If it's still > 1, either "wtap_file_size()" failed (in which
432 case there's not much we can do about it), or the file
433 *shrank* (in which case there's not much we can do about
434 it); just clip the progress value at 1.0. */
435 if (progbar_val > 1.0)
438 if (progbar != NULL) {
439 g_snprintf(status_str, sizeof(status_str),
440 "%" PRId64 "KB of %" PRId64 "KB",
441 file_pos / 1024, size / 1024);
442 update_progress_dlg(progbar, progbar_val, status_str);
444 progbar_nextstep += progbar_quantum;
449 /* Well, the user decided to abort the read. He/She will be warned and
450 it might be enough for him/her to work with the already loaded
452 This is especially true for very large capture files, where you don't
453 want to wait loading the whole file (which may last minutes or even
454 hours even on fast machines) just to see that it was the wrong file. */
457 read_packet(cf, data_offset);
460 /* We're done reading the file; destroy the progress bar if it was created. */
462 destroy_progress_dlg(progbar);
464 /* We're done reading sequentially through the file. */
465 cf->state = FILE_READ_DONE;
467 /* Close the sequential I/O side, to free up memory it requires. */
468 wtap_sequential_close(cf->wth);
470 /* Allow the protocol dissectors to free up memory that they
471 * don't need after the sequential run-through of the packets. */
472 postseq_cleanup_all_protocols();
474 /* Set the file encapsulation type now; we don't know what it is until
475 we've looked at all the packets, as we don't know until then whether
476 there's more than one type (and thus whether it's
477 WTAP_ENCAP_PER_PACKET). */
478 cf->lnk_t = wtap_file_encap(cf->wth);
480 cf->current_frame = cf->first_displayed;
483 cf_callback_invoke(cf_cb_file_read_finished, cf);
485 /* If we have any displayed packets to select, select the first of those
486 packets by making the first row the selected row. */
487 if (cf->first_displayed != NULL)
488 packet_list_select_row(0);
491 simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
492 "%sFile loading was cancelled!%s\n"
494 "The remaining packets in the file were discarded.\n"
496 "As a lot of packets from the original file will be missing,\n"
497 "remember to be careful when saving the current content to a file.\n",
498 simple_dialog_primary_start(), simple_dialog_primary_end());
499 return CF_READ_ERROR;
503 /* Put up a message box noting that the read failed somewhere along
504 the line. Don't throw out the stuff we managed to read, though,
508 case WTAP_ERR_UNSUPPORTED_ENCAP:
509 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
510 "The capture file has a packet with a network type that Ethereal doesn't support.\n(%s)",
513 errmsg = errmsg_errno;
516 case WTAP_ERR_CANT_READ:
517 errmsg = "An attempt to read from the capture file failed for"
518 " some unknown reason.";
521 case WTAP_ERR_SHORT_READ:
522 errmsg = "The capture file appears to have been cut short"
523 " in the middle of a packet.";
526 case WTAP_ERR_BAD_RECORD:
527 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
528 "The capture file appears to be damaged or corrupt.\n(%s)",
531 errmsg = errmsg_errno;
535 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
536 "An error occurred while reading the"
537 " capture file: %s.", wtap_strerror(err));
538 errmsg = errmsg_errno;
541 g_snprintf(err_str, sizeof err_str, errmsg);
542 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
543 return CF_READ_ERROR;
550 cf_start_tail(capture_file *cf, const char *fname, gboolean is_tempfile, int *err)
552 cf_status_t cf_status;
554 cf_status = cf_open(cf, fname, is_tempfile, err);
559 cf_continue_tail(capture_file *cf, int to_read, int *err)
561 long data_offset = 0;
566 packet_list_freeze();
568 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: %u new: %u", cf->count, to_read);*/
570 while (to_read != 0 && (wtap_read(cf->wth, err, &err_info, &data_offset))) {
571 if (cf->state == FILE_READ_ABORTED) {
572 /* Well, the user decided to exit Ethereal. Break out of the
573 loop, and let the code below (which is called even if there
574 aren't any packets left to read) exit. */
577 read_packet(cf, data_offset);
581 /*g_log(NULL, G_LOG_LEVEL_MESSAGE, "cf_continue_tail: count %u state: %u err: %u",
582 cf->count, cf->state, *err);*/
584 /* XXX - this cheats and looks inside the packet list to find the final
586 if (auto_scroll_live && cf->plist_end != NULL)
587 packet_list_moveto_end();
591 if (cf->state == FILE_READ_ABORTED) {
592 /* Well, the user decided to exit Ethereal. Return CF_READ_ABORTED
593 so that our caller can kill off the capture child process;
594 this will cause an EOF on the pipe from the child, so
595 "cf_finish_tail()" will be called, and it will clean up
597 return CF_READ_ABORTED;
598 } else if (*err != 0) {
599 /* We got an error reading the capture file.
600 XXX - pop up a dialog box instead? */
601 g_warning("Error \"%s\" while reading: \"%s\"\n",
602 wtap_strerror(*err), cf->filename);
604 return CF_READ_ERROR;
610 cf_finish_tail(capture_file *cf, int *err)
615 if(cf->wth == NULL) {
617 return CF_READ_ERROR;
620 packet_list_freeze();
622 while ((wtap_read(cf->wth, err, &err_info, &data_offset))) {
623 if (cf->state == FILE_READ_ABORTED) {
624 /* Well, the user decided to abort the read. Break out of the
625 loop, and let the code below (which is called even if there
626 aren't any packets left to read) exit. */
629 read_packet(cf, data_offset);
634 if (cf->state == FILE_READ_ABORTED) {
635 /* Well, the user decided to abort the read. We're only called
636 when the child capture process closes the pipe to us (meaning
637 it's probably exited), so we can just close the capture
638 file; we return CF_READ_ABORTED so our caller can do whatever
639 is appropriate when that happens. */
641 return CF_READ_ABORTED;
644 if (auto_scroll_live && cf->plist_end != NULL)
645 /* XXX - this cheats and looks inside the packet list to find the final
647 packet_list_moveto_end();
649 /* We're done reading sequentially through the file. */
650 cf->state = FILE_READ_DONE;
652 /* We're done reading sequentially through the file; close the
653 sequential I/O side, to free up memory it requires. */
654 wtap_sequential_close(cf->wth);
656 /* Allow the protocol dissectors to free up memory that they
657 * don't need after the sequential run-through of the packets. */
658 postseq_cleanup_all_protocols();
660 /* Set the file encapsulation type now; we don't know what it is until
661 we've looked at all the packets, as we don't know until then whether
662 there's more than one type (and thus whether it's
663 WTAP_ENCAP_PER_PACKET). */
664 cf->lnk_t = wtap_file_encap(cf->wth);
667 /* We got an error reading the capture file.
668 XXX - pop up a dialog box? */
669 return CF_READ_ERROR;
674 #endif /* HAVE_LIBPCAP */
677 cf_get_display_name(capture_file *cf)
679 const gchar *displayname;
681 /* Return a name to use in displays */
682 if (!cf->is_tempfile) {
683 /* Get the last component of the file name, and use that. */
685 displayname = get_basename(cf->filename);
687 displayname="(No file)";
690 /* The file we read is a temporary file from a live capture;
691 we don't mention its name. */
692 displayname = "(Untitled)";
697 /* XXX - use a macro instead? */
699 cf_packet_count(capture_file *cf)
704 /* XXX - use a macro instead? */
706 cf_is_tempfile(capture_file *cf)
708 return cf->is_tempfile;
711 void cf_set_tempfile(capture_file *cf, gboolean is_tempfile)
713 cf->is_tempfile = is_tempfile;
717 /* XXX - use a macro instead? */
718 void cf_set_drops_known(capture_file *cf, gboolean drops_known)
720 cf->drops_known = drops_known;
723 /* XXX - use a macro instead? */
724 void cf_set_drops(capture_file *cf, guint32 drops)
729 /* XXX - use a macro instead? */
730 gboolean cf_get_drops_known(capture_file *cf)
732 return cf->drops_known;
735 /* XXX - use a macro instead? */
736 guint32 cf_get_drops(capture_file *cf)
741 void cf_set_rfcode(capture_file *cf, dfilter_t *rfcode)
747 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
748 union wtap_pseudo_header *pseudo_header, const guchar *buf,
752 gboolean create_proto_tree = FALSE;
755 /* just add some value here until we know if it is being displayed or not */
756 fdata->cum_bytes = cum_bytes + fdata->pkt_len;
758 /* If we don't have the time stamp of the first packet in the
759 capture, it's because this is the first packet. Save the time
760 stamp of this packet as the time stamp of the first packet. */
761 if (nstime_is_zero(&first_ts)) {
762 first_ts = fdata->abs_ts;
764 /* if this frames is marked as a reference time frame, reset
765 firstsec and firstusec to this frame */
766 if(fdata->flags.ref_time){
767 first_ts = fdata->abs_ts;
770 /* If we don't have the time stamp of the previous displayed packet,
771 it's because this is the first displayed packet. Save the time
772 stamp of this packet as the time stamp of the previous displayed
774 if (nstime_is_zero(&prev_ts)) {
775 prev_ts = fdata->abs_ts;
778 /* Get the time elapsed between the first packet and this packet. */
779 nstime_delta(&fdata->rel_ts, &fdata->abs_ts, &first_ts);
781 /* If it's greater than the current elapsed time, set the elapsed time
782 to it (we check for "greater than" so as not to be confused by
783 time moving backwards). */
784 if ((gint32)cf->elapsed_time.secs < fdata->rel_ts.secs
785 || ((gint32)cf->elapsed_time.secs == fdata->rel_ts.secs && (gint32)cf->elapsed_time.nsecs < fdata->rel_ts.nsecs)) {
786 cf->elapsed_time = fdata->rel_ts;
789 /* Get the time elapsed between the previous displayed packet and
791 nstime_delta(&fdata->del_ts, &fdata->abs_ts, &prev_ts);
795 we have a display filter and are re-applying it;
797 we have a list of color filters;
799 we have tap listeners;
801 allocate a protocol tree root node, so that we'll construct
802 a protocol tree against which a filter expression can be
804 if ((cf->dfcode != NULL && refilter) || color_filters_used()
805 || num_tap_filters != 0)
806 create_proto_tree = TRUE;
808 /* Dissect the frame. */
809 edt = epan_dissect_new(create_proto_tree, FALSE);
811 if (cf->dfcode != NULL && refilter) {
812 epan_dissect_prime_dfilter(edt, cf->dfcode);
814 if (color_filters_used()) {
815 color_filters_prime_edt(edt);
818 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
819 tap_push_tapped_queue(edt);
821 /* If we have a display filter, apply it if we're refiltering, otherwise
822 leave the "passed_dfilter" flag alone.
824 If we don't have a display filter, set "passed_dfilter" to 1. */
825 if (cf->dfcode != NULL) {
827 fdata->flags.passed_dfilter = dfilter_apply_edt(cf->dfcode, edt) ? 1 : 0;
830 fdata->flags.passed_dfilter = 1;
832 if( (fdata->flags.passed_dfilter)
833 || (edt->pi.fd->flags.ref_time) ){
834 /* This frame either passed the display filter list or is marked as
835 a time reference frame. All time reference frames are displayed
836 even if they dont pass the display filter */
837 /* if this was a TIME REF frame we should reset the cul bytes field */
838 if(edt->pi.fd->flags.ref_time){
839 cum_bytes = fdata->pkt_len;
840 fdata->cum_bytes = cum_bytes;
843 /* increase cum_bytes with this packets length */
844 cum_bytes += fdata->pkt_len;
846 epan_dissect_fill_in_columns(edt);
848 /* If we haven't yet seen the first frame, this is it.
850 XXX - we must do this before we add the row to the display,
851 as, if the display's GtkCList's selection mode is
852 GTK_SELECTION_BROWSE, when the first entry is added to it,
853 "cf_select_packet()" will be called, and it will fetch the row
854 data for the 0th row, and will get a null pointer rather than
855 "fdata", as "gtk_clist_append()" won't yet have returned and
856 thus "gtk_clist_set_row_data()" won't yet have been called.
858 We thus need to leave behind bread crumbs so that
859 "cf_select_packet()" can find this frame. See the comment
860 in "cf_select_packet()". */
861 if (cf->first_displayed == NULL)
862 cf->first_displayed = fdata;
864 /* This is the last frame we've seen so far. */
865 cf->last_displayed = fdata;
867 row = packet_list_append(cf->cinfo.col_data, fdata);
869 /* colorize packet: if packet is marked, use preferences,
870 otherwise try to apply color filters */
871 if (fdata->flags.marked) {
872 fdata->color_filter = NULL;
873 packet_list_set_colors(row, &prefs.gui_marked_fg, &prefs.gui_marked_bg);
875 fdata->color_filter = color_filters_colorize_packet(row, edt);
878 /* Set the time of the previous displayed frame to the time of this
880 prev_ts = fdata->abs_ts;
882 cf->displayed_count++;
884 /* This frame didn't pass the display filter, so it's not being added
885 to the clist, and thus has no row. */
888 epan_dissect_free(edt);
893 read_packet(capture_file *cf, long offset)
895 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
896 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
897 const guchar *buf = wtap_buf_ptr(cf->wth);
900 frame_data *plist_end;
903 /* Allocate the next list entry, and add it to the list. */
904 fdata = g_mem_chunk_alloc(cf->plist_chunk);
910 fdata->pkt_len = phdr->len;
911 fdata->cap_len = phdr->caplen;
912 fdata->file_off = offset;
913 fdata->lnk_t = phdr->pkt_encap;
914 fdata->flags.encoding = CHAR_ASCII;
915 fdata->flags.visited = 0;
916 fdata->flags.marked = 0;
917 fdata->flags.ref_time = 0;
919 fdata->abs_ts = *((nstime_t *) &phdr->ts);
923 edt = epan_dissect_new(TRUE, FALSE);
924 epan_dissect_prime_dfilter(edt, cf->rfcode);
925 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
926 passed = dfilter_apply_edt(cf->rfcode, edt);
927 epan_dissect_free(edt);
930 plist_end = cf->plist_end;
931 fdata->prev = plist_end;
932 if (plist_end != NULL)
933 plist_end->next = fdata;
936 cf->plist_end = fdata;
939 cf->f_datalen = offset + phdr->caplen;
940 fdata->num = cf->count;
941 add_packet_to_packet_list(fdata, cf, pseudo_header, buf, TRUE);
943 /* XXX - if we didn't have read filters, or if we could avoid
944 allocating the "frame_data" structure until we knew whether
945 the frame passed the read filter, we could use a G_ALLOC_ONLY
948 ...but, at least in one test I did, where I just made the chunk
949 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
950 seem to save a noticeable amount of time or space. */
951 g_mem_chunk_free(cf->plist_chunk, fdata);
956 cf_merge_files(char **out_filenamep, int in_file_count,
957 char *const *in_filenames, int file_type, gboolean do_append)
959 merge_in_file_t *in_files;
965 int open_err, read_err, write_err, close_err;
969 char errmsg_errno[1024+1];
970 gchar err_str[2048+1];
972 gboolean got_read_error = FALSE, got_write_error = FALSE;
974 progdlg_t *progbar = NULL;
976 gint64 f_len, file_pos;
979 gchar status_str[100];
980 gint64 progbar_nextstep;
981 gint64 progbar_quantum;
983 /* open the input files */
984 if (!merge_open_in_files(in_file_count, in_filenames, &in_files,
985 &open_err, &err_info, &err_fileno)) {
987 cf_open_failure_alert_box(in_filenames[err_fileno], open_err, err_info,
992 if (*out_filenamep != NULL) {
993 out_filename = *out_filenamep;
994 out_fd = eth_open(out_filename, O_CREAT|O_TRUNC|O_BINARY, 0600);
998 out_fd = create_tempfile(tmpname, sizeof tmpname, "ether");
1001 out_filename = g_strdup(tmpname);
1002 *out_filenamep = out_filename;
1006 merge_close_in_files(in_file_count, in_files);
1008 cf_open_failure_alert_box(out_filename, open_err, NULL, TRUE, file_type);
1012 pdh = wtap_dump_fdopen(out_fd, file_type,
1013 merge_select_frame_type(in_file_count, in_files),
1014 merge_max_snapshot_length(in_file_count, in_files),
1015 FALSE /* compressed */, &open_err);
1018 merge_close_in_files(in_file_count, in_files);
1020 cf_open_failure_alert_box(out_filename, open_err, err_info, TRUE,
1025 /* Get the sum of the sizes of all the files. */
1027 for (i = 0; i < in_file_count; i++)
1028 f_len += in_files[i].size;
1030 /* Update the progress bar when it gets to this value. */
1031 progbar_nextstep = 0;
1032 /* When we reach the value that triggers a progress bar update,
1033 bump that value by this amount. */
1034 progbar_quantum = f_len/N_PROGBAR_UPDATES;
1035 /* Progress so far. */
1039 g_get_current_time(&start_time);
1041 /* do the merge (or append) */
1044 wth = merge_append_read_packet(in_file_count, in_files, &read_err,
1047 wth = merge_read_packet(in_file_count, in_files, &read_err,
1051 got_read_error = TRUE;
1055 /* Get the sum of the data offsets in all of the files. */
1057 for (i = 0; i < in_file_count; i++)
1058 data_offset += in_files[i].data_offset;
1060 /* Create the progress bar if necessary.
1061 We check on every iteration of the loop, so that it takes no
1062 longer than the standard time to create it (otherwise, for a
1063 large file, we might take considerably longer than that standard
1064 time in order to get to the next progress bar step). */
1065 if (progbar == NULL) {
1066 progbar = delayed_create_progress_dlg("Merging", "files",
1067 FALSE, &stop_flag, &start_time, progbar_val);
1070 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1071 when we update it, we have to run the GTK+ main loop to get it
1072 to repaint what's pending, and doing so may involve an "ioctl()"
1073 to see if there's any pending input from an X server, and doing
1074 that for every packet can be costly, especially on a big file. */
1075 if (data_offset >= progbar_nextstep) {
1076 /* Get the sum of the seek positions in all of the files. */
1078 for (i = 0; i < in_file_count; i++)
1079 file_pos += wtap_read_so_far(in_files[i].wth, NULL);
1080 progbar_val = (gfloat) file_pos / (gfloat) f_len;
1081 if (progbar_val > 1.0) {
1082 /* Some file probably grew while we were reading it.
1083 That "shouldn't happen", so we'll just clip the progress
1087 if (progbar != NULL) {
1088 g_snprintf(status_str, sizeof(status_str),
1089 "%" PRId64 "KB of %" PRId64 "KB",
1090 file_pos / 1024, f_len / 1024);
1091 update_progress_dlg(progbar, progbar_val, status_str);
1093 progbar_nextstep += progbar_quantum;
1097 /* Well, the user decided to abort the merge. */
1101 if (!wtap_dump(pdh, wtap_phdr(wth), wtap_pseudoheader(wth),
1102 wtap_buf_ptr(wth), &write_err)) {
1103 got_write_error = TRUE;
1108 /* We're done merging the files; destroy the progress bar if it was created. */
1109 if (progbar != NULL)
1110 destroy_progress_dlg(progbar);
1112 merge_close_in_files(in_file_count, in_files);
1113 if (!got_read_error && !got_write_error) {
1114 if (!wtap_dump_close(pdh, &write_err))
1115 got_write_error = TRUE;
1117 wtap_dump_close(pdh, &close_err);
1119 if (got_read_error) {
1121 * Find the file on which we got the error, and report the error.
1123 for (i = 0; i < in_file_count; i++) {
1124 if (in_files[i].state == GOT_ERROR) {
1125 /* Put up a message box noting that a read failed somewhere along
1129 case WTAP_ERR_UNSUPPORTED_ENCAP:
1130 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1131 "The capture file %%s has a packet with a network type that Ethereal doesn't support.\n(%s)",
1134 errmsg = errmsg_errno;
1137 case WTAP_ERR_CANT_READ:
1138 errmsg = "An attempt to read from the capture file %s failed for"
1139 " some unknown reason.";
1142 case WTAP_ERR_SHORT_READ:
1143 errmsg = "The capture file %s appears to have been cut short"
1144 " in the middle of a packet.";
1147 case WTAP_ERR_BAD_RECORD:
1148 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1149 "The capture file %%s appears to be damaged or corrupt.\n(%s)",
1152 errmsg = errmsg_errno;
1156 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1157 "An error occurred while reading the"
1158 " capture file %%s: %s.", wtap_strerror(read_err));
1159 errmsg = errmsg_errno;
1162 g_snprintf(err_str, sizeof err_str, errmsg, in_files[i].filename);
1163 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, err_str);
1168 if (got_write_error) {
1169 /* Put up an alert box for the write error. */
1170 cf_write_failure_alert_box(out_filename, write_err);
1173 if (got_read_error || got_write_error || stop_flag) {
1174 /* Callers aren't expected to treat an error or an explicit abort
1175 differently - we put up error dialogs ourselves, so they don't
1183 cf_filter_packets(capture_file *cf, gchar *dftext, gboolean force)
1186 const char *filter_new = dftext ? dftext : "";
1187 const char *filter_old = cf->dfilter ? cf->dfilter : "";
1189 /* if new filter equals old one, do nothing unless told to do so */
1190 if (!force && strcmp(filter_new, filter_old) == 0) {
1194 if (dftext == NULL) {
1195 /* The new filter is an empty filter (i.e., display all packets). */
1199 * We have a filter; make a copy of it (as we'll be saving it),
1200 * and try to compile it.
1202 dftext = g_strdup(dftext);
1203 if (!dfilter_compile(dftext, &dfcode)) {
1204 /* The attempt failed; report an error. */
1205 gchar *safe_dftext = simple_dialog_format_message(dftext);
1206 gchar *safe_dfilter_error_msg = simple_dialog_format_message(
1208 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1211 "The following display filter isn't a valid display filter:\n%s\n"
1212 "See the help for a description of the display filter syntax.",
1213 simple_dialog_primary_start(), safe_dfilter_error_msg,
1214 simple_dialog_primary_end(), safe_dftext);
1215 g_free(safe_dfilter_error_msg);
1216 g_free(safe_dftext);
1222 if (dfcode == NULL) {
1223 /* Yes - free the filter text, and set it to null. */
1229 /* We have a valid filter. Replace the current filter. */
1230 if (cf->dfilter != NULL)
1231 g_free(cf->dfilter);
1232 cf->dfilter = dftext;
1233 if (cf->dfcode != NULL)
1234 dfilter_free(cf->dfcode);
1235 cf->dfcode = dfcode;
1237 /* Now rescan the packet list, applying the new filter, but not
1238 throwing away information constructed on a previous pass. */
1239 if (dftext == NULL) {
1240 rescan_packets(cf, "Resetting", "Filter", TRUE, FALSE);
1242 rescan_packets(cf, "Filtering", dftext, TRUE, FALSE);
1248 cf_colorize_packets(capture_file *cf)
1250 rescan_packets(cf, "Colorizing", "all packets", FALSE, FALSE);
1254 cf_reftime_packets(capture_file *cf)
1256 rescan_packets(cf, "Updating Reftime", "all packets", FALSE, FALSE);
1260 cf_redissect_packets(capture_file *cf)
1262 rescan_packets(cf, "Reprocessing", "all packets", TRUE, TRUE);
1265 /* Rescan the list of packets, reconstructing the CList.
1267 "action" describes why we're doing this; it's used in the progress
1270 "action_item" describes what we're doing; it's used in the progress
1273 "refilter" is TRUE if we need to re-evaluate the filter expression.
1275 "redissect" is TRUE if we need to make the dissectors reconstruct
1276 any state information they have (because a preference that affects
1277 some dissector has changed, meaning some dissector might construct
1278 its state differently from the way it was constructed the last time). */
1280 rescan_packets(capture_file *cf, const char *action, const char *action_item,
1281 gboolean refilter, gboolean redissect)
1284 progdlg_t *progbar = NULL;
1289 frame_data *selected_frame, *preceding_frame, *following_frame, *prev_frame;
1290 int selected_row, prev_row, preceding_row, following_row;
1291 gboolean selected_frame_seen;
1294 GTimeVal start_time;
1295 gchar status_str[100];
1296 int progbar_nextstep;
1297 int progbar_quantum;
1300 reset_tap_listeners();
1301 /* Which frame, if any, is the currently selected frame?
1302 XXX - should the selected frame or the focus frame be the "current"
1303 frame, that frame being the one from which "Find Frame" searches
1305 selected_frame = cf->current_frame;
1307 /* We don't yet know what row that frame will be on, if any, after we
1308 rebuild the clist, however. */
1312 /* We need to re-initialize all the state information that protocols
1313 keep, because some preference that controls a dissector has changed,
1314 which might cause the state information to be constructed differently
1315 by that dissector. */
1317 /* Initialize all data structures used for dissection. */
1321 /* Freeze the packet list while we redo it, so we don't get any
1322 screen updates while it happens. */
1323 packet_list_freeze();
1326 packet_list_clear();
1328 /* We don't yet know which will be the first and last frames displayed. */
1329 cf->first_displayed = NULL;
1330 cf->last_displayed = NULL;
1332 /* We currently don't display any packets */
1333 cf->displayed_count = 0;
1335 /* Iterate through the list of frames. Call a routine for each frame
1336 to check whether it should be displayed and, if so, add it to
1337 the display list. */
1338 nstime_set_zero(&first_ts);
1339 nstime_set_zero(&prev_ts);
1341 /* Update the progress bar when it gets to this value. */
1342 progbar_nextstep = 0;
1343 /* When we reach the value that triggers a progress bar update,
1344 bump that value by this amount. */
1345 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1346 /* Count of packets at which we've looked. */
1348 /* Progress so far. */
1352 g_get_current_time(&start_time);
1354 row = -1; /* no previous row yet */
1359 preceding_frame = NULL;
1361 following_frame = NULL;
1363 selected_frame_seen = FALSE;
1365 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1366 /* Create the progress bar if necessary.
1367 We check on every iteration of the loop, so that it takes no
1368 longer than the standard time to create it (otherwise, for a
1369 large file, we might take considerably longer than that standard
1370 time in order to get to the next progress bar step). */
1371 if (progbar == NULL)
1372 progbar = delayed_create_progress_dlg(action, action_item, TRUE,
1373 &stop_flag, &start_time,
1376 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1377 when we update it, we have to run the GTK+ main loop to get it
1378 to repaint what's pending, and doing so may involve an "ioctl()"
1379 to see if there's any pending input from an X server, and doing
1380 that for every packet can be costly, especially on a big file. */
1381 if (count >= progbar_nextstep) {
1382 /* let's not divide by zero. I should never be started
1383 * with count == 0, so let's assert that
1385 g_assert(cf->count > 0);
1386 progbar_val = (gfloat) count / cf->count;
1388 if (progbar != NULL) {
1389 g_snprintf(status_str, sizeof(status_str),
1390 "%4u of %u frames", count, cf->count);
1391 update_progress_dlg(progbar, progbar_val, status_str);
1394 progbar_nextstep += progbar_quantum;
1398 /* Well, the user decided to abort the filtering. Just stop.
1400 XXX - go back to the previous filter? Users probably just
1401 want not to wait for a filtering operation to finish;
1402 unless we cancel by having no filter, reverting to the
1403 previous filter will probably be even more expensive than
1404 continuing the filtering, as it involves going back to the
1405 beginning and filtering, and even with no filter we currently
1406 have to re-generate the entire clist, which is also expensive.
1408 I'm not sure what Network Monitor does, but it doesn't appear
1409 to give you an unfiltered display if you cancel. */
1416 /* Since all state for the frame was destroyed, mark the frame
1417 * as not visited, free the GSList referring to the state
1418 * data (the per-frame data itself was freed by
1419 * "init_dissection()"), and null out the GSList pointer. */
1420 fdata->flags.visited = 0;
1422 g_slist_free(fdata->pfd);
1427 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1428 cf->pd, fdata->cap_len, &err, &err_info)) {
1429 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1430 cf_read_error_message(err, err_info), cf->filename);
1434 /* If the previous frame is displayed, and we haven't yet seen the
1435 selected frame, remember that frame - it's the closest one we've
1436 yet seen before the selected frame. */
1437 if (prev_row != -1 && !selected_frame_seen) {
1438 preceding_row = prev_row;
1439 preceding_frame = prev_frame;
1441 row = add_packet_to_packet_list(fdata, cf, &cf->pseudo_header, cf->pd,
1444 /* If this frame is displayed, and this is the first frame we've
1445 seen displayed after the selected frame, remember this frame -
1446 it's the closest one we've yet seen at or after the selected
1448 if (row != -1 && selected_frame_seen && following_row == -1) {
1449 following_row = row;
1450 following_frame = fdata;
1452 if (fdata == selected_frame) {
1454 selected_frame_seen = TRUE;
1457 /* Remember this row/frame - it'll be the previous row/frame
1458 on the next pass through the loop. */
1464 /* Clear out what remains of the visited flags and per-frame data
1467 XXX - that may cause various forms of bogosity when dissecting
1468 these frames, as they won't have been seen by this sequential
1469 pass, but the only alternative I see is to keep scanning them
1470 even though the user requested that the scan stop, and that
1471 would leave the user stuck with an Ethereal grinding on
1472 until it finishes. Should we just stick them with that? */
1473 for (; fdata != NULL; fdata = fdata->next) {
1474 fdata->flags.visited = 0;
1476 g_slist_free(fdata->pfd);
1482 /* We're done filtering the packets; destroy the progress bar if it
1484 if (progbar != NULL)
1485 destroy_progress_dlg(progbar);
1487 /* Unfreeze the packet list. */
1490 if (selected_row == -1) {
1491 /* The selected frame didn't pass the filter. */
1492 if (selected_frame == NULL) {
1493 /* That's because there *was* no selected frame. Make the first
1494 displayed frame the current frame. */
1497 /* Find the nearest displayed frame to the selected frame (whether
1498 it's before or after that frame) and make that the current frame.
1499 If the next and previous displayed frames are equidistant from the
1500 selected frame, choose the next one. */
1501 g_assert(following_frame == NULL ||
1502 following_frame->num >= selected_frame->num);
1503 g_assert(preceding_frame == NULL ||
1504 preceding_frame->num <= selected_frame->num);
1505 if (following_frame == NULL) {
1506 /* No frame after the selected frame passed the filter, so we
1507 have to select the last displayed frame before the selected
1509 selected_row = preceding_row;
1510 } else if (preceding_frame == NULL) {
1511 /* No frame before the selected frame passed the filter, so we
1512 have to select the first displayed frame after the selected
1514 selected_row = following_row;
1516 /* Choose the closer of the last displayed frame before the
1517 selected frame and the first displayed frame after the
1518 selected frame; in case of a tie, choose the first displayed
1519 frame after the selected frame. */
1520 if (following_frame->num - selected_frame->num <=
1521 selected_frame->num - preceding_frame->num) {
1522 selected_row = following_row;
1524 /* The previous frame is closer to the selected frame than the
1526 selected_row = preceding_row;
1532 if (selected_row == -1) {
1533 /* There are no frames displayed at all. */
1534 cf_unselect_packet(cf);
1536 /* Either the frame that was selected passed the filter, or we've
1537 found the nearest displayed frame to that frame. Select it, make
1538 it the focus row, and make it visible. */
1539 packet_list_set_selected_row(selected_row);
1550 process_specified_packets(capture_file *cf, packet_range_t *range,
1551 const char *string1, const char *string2, gboolean terminate_is_stop,
1552 gboolean (*callback)(capture_file *, frame_data *,
1553 union wtap_pseudo_header *, const guint8 *, void *),
1554 void *callback_args)
1559 union wtap_pseudo_header pseudo_header;
1560 guint8 pd[WTAP_MAX_PACKET_SIZE+1];
1561 psp_return_t ret = PSP_FINISHED;
1563 progdlg_t *progbar = NULL;
1566 gboolean progbar_stop_flag;
1567 GTimeVal progbar_start_time;
1568 gchar progbar_status_str[100];
1569 int progbar_nextstep;
1570 int progbar_quantum;
1571 range_process_e process_this;
1573 /* Update the progress bar when it gets to this value. */
1574 progbar_nextstep = 0;
1575 /* When we reach the value that triggers a progress bar update,
1576 bump that value by this amount. */
1577 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1578 /* Count of packets at which we've looked. */
1580 /* Progress so far. */
1583 progbar_stop_flag = FALSE;
1584 g_get_current_time(&progbar_start_time);
1586 packet_range_process_init(range);
1588 /* Iterate through the list of packets, printing the packets that
1589 were selected by the current display filter. */
1590 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1591 /* Create the progress bar if necessary.
1592 We check on every iteration of the loop, so that it takes no
1593 longer than the standard time to create it (otherwise, for a
1594 large file, we might take considerably longer than that standard
1595 time in order to get to the next progress bar step). */
1596 if (progbar == NULL)
1597 progbar = delayed_create_progress_dlg(string1, string2,
1600 &progbar_start_time,
1603 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1604 when we update it, we have to run the GTK+ main loop to get it
1605 to repaint what's pending, and doing so may involve an "ioctl()"
1606 to see if there's any pending input from an X server, and doing
1607 that for every packet can be costly, especially on a big file. */
1608 if (progbar_count >= progbar_nextstep) {
1609 /* let's not divide by zero. I should never be started
1610 * with count == 0, so let's assert that
1612 g_assert(cf->count > 0);
1613 progbar_val = (gfloat) progbar_count / cf->count;
1615 if (progbar != NULL) {
1616 g_snprintf(progbar_status_str, sizeof(progbar_status_str),
1617 "%4u of %u packets", progbar_count, cf->count);
1618 update_progress_dlg(progbar, progbar_val, progbar_status_str);
1621 progbar_nextstep += progbar_quantum;
1624 if (progbar_stop_flag) {
1625 /* Well, the user decided to abort the operation. Just stop,
1626 and arrange to return PSP_STOPPED to our caller, so they know
1627 it was stopped explicitly. */
1634 /* do we have to process this packet? */
1635 process_this = packet_range_process_packet(range, fdata);
1636 if (process_this == range_process_next) {
1637 /* this packet uninteresting, continue with next one */
1639 } else if (process_this == range_processing_finished) {
1640 /* all interesting packets processed, stop the loop */
1644 /* Get the packet */
1645 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1646 pd, fdata->cap_len, &err, &err_info)) {
1647 /* Attempt to get the packet failed. */
1648 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
1649 cf_read_error_message(err, err_info), cf->filename);
1653 /* Process the packet */
1654 if (!callback(cf, fdata, &pseudo_header, pd, callback_args)) {
1655 /* Callback failed. We assume it reported the error appropriately. */
1661 /* We're done printing the packets; destroy the progress bar if
1663 if (progbar != NULL)
1664 destroy_progress_dlg(progbar);
1670 retap_packet(capture_file *cf _U_, frame_data *fdata,
1671 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1674 column_info *cinfo = argsp;
1675 epan_dissect_t *edt;
1677 /* If we have tap listeners, allocate a protocol tree root node, so that
1678 we'll construct a protocol tree against which a filter expression can
1680 edt = epan_dissect_new(num_tap_filters != 0, FALSE);
1681 tap_queue_init(edt);
1682 epan_dissect_run(edt, pseudo_header, pd, fdata, cinfo);
1683 tap_push_tapped_queue(edt);
1684 epan_dissect_free(edt);
1690 cf_retap_packets(capture_file *cf, gboolean do_columns)
1692 packet_range_t range;
1694 /* Reset the tap listeners. */
1695 reset_tap_listeners();
1697 /* Iterate through the list of packets, dissecting all packets and
1698 re-running the taps. */
1699 packet_range_init(&range);
1700 packet_range_process_init(&range);
1701 switch (process_specified_packets(cf, &range, "Refiltering statistics on",
1702 "all packets", TRUE, retap_packet,
1703 do_columns ? &cf->cinfo : NULL)) {
1705 /* Completed successfully. */
1709 /* Well, the user decided to abort the refiltering.
1710 Return CF_READ_ABORTED so our caller knows they did that. */
1711 return CF_READ_ABORTED;
1714 /* Error while retapping. */
1715 return CF_READ_ERROR;
1718 g_assert_not_reached();
1723 print_args_t *print_args;
1724 gboolean print_header_line;
1725 char *header_line_buf;
1726 int header_line_buf_len;
1727 gboolean print_formfeed;
1728 gboolean print_separator;
1732 } print_callback_args_t;
1735 print_packet(capture_file *cf, frame_data *fdata,
1736 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
1739 print_callback_args_t *args = argsp;
1740 epan_dissect_t *edt;
1746 gboolean proto_tree_needed;
1747 char bookmark_name[9+10+1]; /* "__frameNNNNNNNNNN__\0" */
1748 char bookmark_title[6+10+1]; /* "Frame NNNNNNNNNN__\0" */
1750 /* Create the protocol tree, and make it visible, if we're printing
1751 the dissection or the hex data.
1752 XXX - do we need it if we're just printing the hex data? */
1754 args->print_args->print_dissections != print_dissections_none || args->print_args->print_hex;
1755 edt = epan_dissect_new(proto_tree_needed, proto_tree_needed);
1757 /* Fill in the column information if we're printing the summary
1759 if (args->print_args->print_summary) {
1760 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
1761 epan_dissect_fill_in_columns(edt);
1763 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
1765 if (args->print_formfeed) {
1766 if (!new_page(args->print_args->stream))
1769 if (args->print_separator) {
1770 if (!print_line(args->print_args->stream, 0, ""))
1776 * We generate bookmarks, if the output format supports them.
1777 * The name is "__frameN__".
1779 g_snprintf(bookmark_name, sizeof bookmark_name, "__frame%u__", fdata->num);
1781 if (args->print_args->print_summary) {
1782 if (args->print_header_line) {
1783 if (!print_line(args->print_args->stream, 0, args->header_line_buf))
1785 args->print_header_line = FALSE; /* we might not need to print any more */
1787 cp = &args->line_buf[0];
1789 for (i = 0; i < cf->cinfo.num_cols; i++) {
1790 /* Find the length of the string for this column. */
1791 column_len = strlen(cf->cinfo.col_data[i]);
1792 if (args->col_widths[i] > column_len)
1793 column_len = args->col_widths[i];
1795 /* Make sure there's room in the line buffer for the column; if not,
1796 double its length. */
1797 line_len += column_len + 1; /* "+1" for space */
1798 if (line_len > args->line_buf_len) {
1799 cp_off = cp - args->line_buf;
1800 args->line_buf_len = 2 * line_len;
1801 args->line_buf = g_realloc(args->line_buf, args->line_buf_len + 1);
1802 cp = args->line_buf + cp_off;
1805 /* Right-justify the packet number column. */
1806 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1807 sprintf(cp, "%*s", args->col_widths[i], cf->cinfo.col_data[i]);
1809 sprintf(cp, "%-*s", args->col_widths[i], cf->cinfo.col_data[i]);
1811 if (i != cf->cinfo.num_cols - 1)
1817 * Generate a bookmark, using the summary line as the title.
1819 if (!print_bookmark(args->print_args->stream, bookmark_name,
1823 if (!print_line(args->print_args->stream, 0, args->line_buf))
1827 * Generate a bookmark, using "Frame N" as the title, as we're not
1828 * printing the summary line.
1830 g_snprintf(bookmark_title, sizeof bookmark_title, "Frame %u", fdata->num);
1831 if (!print_bookmark(args->print_args->stream, bookmark_name,
1834 } /* if (print_summary) */
1836 if (args->print_args->print_dissections != print_dissections_none) {
1837 if (args->print_args->print_summary) {
1838 /* Separate the summary line from the tree with a blank line. */
1839 if (!print_line(args->print_args->stream, 0, ""))
1843 /* Print the information in that tree. */
1844 if (!proto_tree_print(args->print_args, edt, args->print_args->stream))
1847 /* Print a blank line if we print anything after this (aka more than one packet). */
1848 args->print_separator = TRUE;
1850 /* Print a header line if we print any more packet summaries */
1851 args->print_header_line = TRUE;
1854 if (args->print_args->print_hex) {
1855 /* Print the full packet data as hex. */
1856 if (!print_hex_data(args->print_args->stream, edt))
1859 /* Print a blank line if we print anything after this (aka more than one packet). */
1860 args->print_separator = TRUE;
1862 /* Print a header line if we print any more packet summaries */
1863 args->print_header_line = TRUE;
1864 } /* if (args->print_args->print_dissections != print_dissections_none) */
1866 epan_dissect_free(edt);
1868 /* do we want to have a formfeed between each packet from now on? */
1869 if(args->print_args->print_formfeed) {
1870 args->print_formfeed = TRUE;
1876 epan_dissect_free(edt);
1881 cf_print_packets(capture_file *cf, print_args_t *print_args)
1884 print_callback_args_t callback_args;
1892 callback_args.print_args = print_args;
1893 callback_args.print_header_line = TRUE;
1894 callback_args.header_line_buf = NULL;
1895 callback_args.header_line_buf_len = 256;
1896 callback_args.print_formfeed = FALSE;
1897 callback_args.print_separator = FALSE;
1898 callback_args.line_buf = NULL;
1899 callback_args.line_buf_len = 256;
1900 callback_args.col_widths = NULL;
1902 if (!print_preamble(print_args->stream, cf->filename)) {
1903 destroy_print_stream(print_args->stream);
1904 return CF_PRINT_WRITE_ERROR;
1907 if (print_args->print_summary) {
1908 /* We're printing packet summaries. Allocate the header line buffer
1909 and get the column widths. */
1910 callback_args.header_line_buf = g_malloc(callback_args.header_line_buf_len + 1);
1912 /* Find the widths for each of the columns - maximum of the
1913 width of the title and the width of the data - and construct
1914 a buffer with a line containing the column titles. */
1915 callback_args.col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1916 cp = &callback_args.header_line_buf[0];
1918 for (i = 0; i < cf->cinfo.num_cols; i++) {
1919 /* Don't pad the last column. */
1920 if (i == cf->cinfo.num_cols - 1)
1921 callback_args.col_widths[i] = 0;
1923 callback_args.col_widths[i] = strlen(cf->cinfo.col_title[i]);
1924 data_width = get_column_char_width(get_column_format(i));
1925 if (data_width > callback_args.col_widths[i])
1926 callback_args.col_widths[i] = data_width;
1929 /* Find the length of the string for this column. */
1930 column_len = strlen(cf->cinfo.col_title[i]);
1931 if (callback_args.col_widths[i] > column_len)
1932 column_len = callback_args.col_widths[i];
1934 /* Make sure there's room in the line buffer for the column; if not,
1935 double its length. */
1936 line_len += column_len + 1; /* "+1" for space */
1937 if (line_len > callback_args.header_line_buf_len) {
1938 cp_off = cp - callback_args.header_line_buf;
1939 callback_args.header_line_buf_len = 2 * line_len;
1940 callback_args.header_line_buf = g_realloc(callback_args.header_line_buf,
1941 callback_args.header_line_buf_len + 1);
1942 cp = callback_args.header_line_buf + cp_off;
1945 /* Right-justify the packet number column. */
1946 /* if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1947 sprintf(cp, "%*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
1949 sprintf(cp, "%-*s", callback_args.col_widths[i], cf->cinfo.col_title[i]);
1951 if (i != cf->cinfo.num_cols - 1)
1956 /* Now start out the main line buffer with the same length as the
1957 header line buffer. */
1958 callback_args.line_buf_len = callback_args.header_line_buf_len;
1959 callback_args.line_buf = g_malloc(callback_args.line_buf_len + 1);
1960 } /* if (print_summary) */
1962 /* Iterate through the list of packets, printing the packets we were
1964 ret = process_specified_packets(cf, &print_args->range, "Printing",
1965 "selected packets", TRUE, print_packet,
1968 if (callback_args.header_line_buf != NULL)
1969 g_free(callback_args.header_line_buf);
1970 if (callback_args.line_buf != NULL)
1971 g_free(callback_args.line_buf);
1972 if (callback_args.col_widths != NULL)
1973 g_free(callback_args.col_widths);
1978 /* Completed successfully. */
1982 /* Well, the user decided to abort the printing.
1984 XXX - note that what got generated before they did that
1985 will get printed if we're piping to a print program; we'd
1986 have to write to a file and then hand that to the print
1987 program to make it actually not print anything. */
1991 /* Error while printing.
1993 XXX - note that what got generated before they did that
1994 will get printed if we're piping to a print program; we'd
1995 have to write to a file and then hand that to the print
1996 program to make it actually not print anything. */
1997 destroy_print_stream(print_args->stream);
1998 return CF_PRINT_WRITE_ERROR;
2001 if (!print_finale(print_args->stream)) {
2002 destroy_print_stream(print_args->stream);
2003 return CF_PRINT_WRITE_ERROR;
2006 if (!destroy_print_stream(print_args->stream))
2007 return CF_PRINT_WRITE_ERROR;
2013 write_pdml_packet(capture_file *cf _U_, frame_data *fdata,
2014 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2018 epan_dissect_t *edt;
2020 /* Create the protocol tree, but don't fill in the column information. */
2021 edt = epan_dissect_new(TRUE, TRUE);
2022 epan_dissect_run(edt, pseudo_header, pd, fdata, NULL);
2024 /* Write out the information in that tree. */
2025 proto_tree_write_pdml(edt, fh);
2027 epan_dissect_free(edt);
2033 cf_write_pdml_packets(capture_file *cf, print_args_t *print_args)
2038 fh = eth_fopen(print_args->file, "w");
2040 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2042 write_pdml_preamble(fh);
2045 return CF_PRINT_WRITE_ERROR;
2048 /* Iterate through the list of packets, printing the packets we were
2050 ret = process_specified_packets(cf, &print_args->range, "Writing PDML",
2051 "selected packets", TRUE,
2052 write_pdml_packet, fh);
2057 /* Completed successfully. */
2061 /* Well, the user decided to abort the printing. */
2065 /* Error while printing. */
2067 return CF_PRINT_WRITE_ERROR;
2070 write_pdml_finale(fh);
2073 return CF_PRINT_WRITE_ERROR;
2076 /* XXX - check for an error */
2083 write_psml_packet(capture_file *cf, frame_data *fdata,
2084 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2088 epan_dissect_t *edt;
2090 /* Fill in the column information, but don't create the protocol tree. */
2091 edt = epan_dissect_new(FALSE, FALSE);
2092 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2093 epan_dissect_fill_in_columns(edt);
2095 /* Write out the information in that tree. */
2096 proto_tree_write_psml(edt, fh);
2098 epan_dissect_free(edt);
2104 cf_write_psml_packets(capture_file *cf, print_args_t *print_args)
2109 fh = eth_fopen(print_args->file, "w");
2111 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2113 write_psml_preamble(fh);
2116 return CF_PRINT_WRITE_ERROR;
2119 /* Iterate through the list of packets, printing the packets we were
2121 ret = process_specified_packets(cf, &print_args->range, "Writing PSML",
2122 "selected packets", TRUE,
2123 write_psml_packet, fh);
2128 /* Completed successfully. */
2132 /* Well, the user decided to abort the printing. */
2136 /* Error while printing. */
2138 return CF_PRINT_WRITE_ERROR;
2141 write_psml_finale(fh);
2144 return CF_PRINT_WRITE_ERROR;
2147 /* XXX - check for an error */
2154 write_csv_packet(capture_file *cf, frame_data *fdata,
2155 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
2159 epan_dissect_t *edt;
2161 /* Fill in the column information, but don't create the protocol tree. */
2162 edt = epan_dissect_new(FALSE, FALSE);
2163 epan_dissect_run(edt, pseudo_header, pd, fdata, &cf->cinfo);
2164 epan_dissect_fill_in_columns(edt);
2166 /* Write out the information in that tree. */
2167 proto_tree_write_csv(edt, fh);
2169 epan_dissect_free(edt);
2175 cf_write_csv_packets(capture_file *cf, print_args_t *print_args)
2180 fh = eth_fopen(print_args->file, "w");
2182 return CF_PRINT_OPEN_ERROR; /* attempt to open destination failed */
2184 write_csv_preamble(fh);
2187 return CF_PRINT_WRITE_ERROR;
2190 /* Iterate through the list of packets, printing the packets we were
2192 ret = process_specified_packets(cf, &print_args->range, "Writing CSV",
2193 "selected packets", TRUE,
2194 write_csv_packet, fh);
2199 /* Completed successfully. */
2203 /* Well, the user decided to abort the printing. */
2207 /* Error while printing. */
2209 return CF_PRINT_WRITE_ERROR;
2212 write_csv_finale(fh);
2215 return CF_PRINT_WRITE_ERROR;
2218 /* XXX - check for an error */
2224 /* Scan through the packet list and change all columns that use the
2225 "command-line-specified" time stamp format to use the current
2226 value of that format. */
2228 cf_change_time_formats(capture_file *cf)
2231 progdlg_t *progbar = NULL;
2237 GTimeVal start_time;
2238 gchar status_str[100];
2239 int progbar_nextstep;
2240 int progbar_quantum;
2242 gboolean sorted_by_frame_column;
2245 /* adjust timestamp precision if auto is selected */
2246 cf_timestamp_auto_precision(cf);
2248 /* Are there any columns with time stamps in the "command-line-specified"
2251 XXX - we have to force the "column is writable" flag on, as it
2252 might be off from the last frame that was dissected. */
2253 col_set_writable(&cf->cinfo, TRUE);
2254 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
2255 /* No, there aren't any columns in that format, so we have no work
2259 first = cf->cinfo.col_first[COL_CLS_TIME];
2260 g_assert(first >= 0);
2261 last = cf->cinfo.col_last[COL_CLS_TIME];
2263 /* Freeze the packet list while we redo it, so we don't get any
2264 screen updates while it happens. */
2265 packet_list_freeze();
2267 /* Update the progress bar when it gets to this value. */
2268 progbar_nextstep = 0;
2269 /* When we reach the value that triggers a progress bar update,
2270 bump that value by this amount. */
2271 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2272 /* Count of packets at which we've looked. */
2274 /* Progress so far. */
2277 /* If the rows are currently sorted by the frame column then we know
2278 * the row number of each packet: it's the row number of the previously
2279 * displayed packet + 1.
2281 * Otherwise, if the display is sorted by a different column then we have
2282 * to use the O(N) packet_list_find_row_from_data() (thus making the job
2283 * of changing the time display format O(N**2)).
2285 * (XXX - In fact it's still O(N**2) because gtk_clist_set_text() takes
2286 * the row number and walks that many elements down the clist to find
2287 * the appropriate element.)
2289 sorted_by_frame_column = FALSE;
2290 for (i = 0; i < cf->cinfo.num_cols; i++) {
2291 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
2293 sorted_by_frame_column = (i == packet_list_get_sort_column());
2299 g_get_current_time(&start_time);
2301 /* Iterate through the list of packets, checking whether the packet
2302 is in a row of the summary list and, if so, whether there are
2303 any columns that show the time in the "command-line-specified"
2304 format and, if so, update that row. */
2305 for (fdata = cf->plist, row = -1; fdata != NULL; fdata = fdata->next) {
2306 /* Create the progress bar if necessary.
2307 We check on every iteration of the loop, so that it takes no
2308 longer than the standard time to create it (otherwise, for a
2309 large file, we might take considerably longer than that standard
2310 time in order to get to the next progress bar step). */
2311 if (progbar == NULL)
2312 progbar = delayed_create_progress_dlg("Changing", "time display",
2313 TRUE, &stop_flag, &start_time, progbar_val);
2315 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2316 when we update it, we have to run the GTK+ main loop to get it
2317 to repaint what's pending, and doing so may involve an "ioctl()"
2318 to see if there's any pending input from an X server, and doing
2319 that for every packet can be costly, especially on a big file. */
2320 if (count >= progbar_nextstep) {
2321 /* let's not divide by zero. I should never be started
2322 * with count == 0, so let's assert that
2324 g_assert(cf->count > 0);
2326 progbar_val = (gfloat) count / cf->count;
2328 if (progbar != NULL) {
2329 g_snprintf(status_str, sizeof(status_str),
2330 "%4u of %u packets", count, cf->count);
2331 update_progress_dlg(progbar, progbar_val, status_str);
2334 progbar_nextstep += progbar_quantum;
2338 /* Well, the user decided to abort the redisplay. Just stop.
2340 XXX - this leaves the time field in the old format in
2341 frames we haven't yet processed. So it goes; should we
2342 simply not offer them the option of stopping? */
2348 /* Find what row this packet is in. */
2349 if (!sorted_by_frame_column) {
2350 /* This function is O(N), so we try to avoid using it... */
2351 row = packet_list_find_row_from_data(fdata);
2353 /* ...which we do by maintaining a count of packets that are
2354 being displayed (i.e., that have passed the display filter),
2355 and using the current value of that count as the row number
2356 (which is why we can only do it when the display is sorted
2357 by the frame number). */
2358 if (fdata->flags.passed_dfilter)
2365 /* This packet is in the summary list, on row "row". */
2367 for (i = first; i <= last; i++) {
2368 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2369 /* This is one of the columns that shows the time in
2370 "command-line-specified" format; update it. */
2371 cf->cinfo.col_buf[i][0] = '\0';
2372 col_set_cls_time(fdata, &cf->cinfo, i);
2373 packet_list_set_text(row, i, cf->cinfo.col_data[i]);
2379 /* We're done redisplaying the packets; destroy the progress bar if it
2381 if (progbar != NULL)
2382 destroy_progress_dlg(progbar);
2384 /* Set the column widths of those columns that show the time in
2385 "command-line-specified" format. */
2386 for (i = first; i <= last; i++) {
2387 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
2388 packet_list_set_cls_time_width(i);
2392 /* Unfreeze the packet list. */
2400 gboolean frame_matched;
2404 cf_find_packet_protocol_tree(capture_file *cf, const char *string)
2408 mdata.string = string;
2409 mdata.string_len = strlen(string);
2410 return find_packet(cf, match_protocol_tree, &mdata);
2414 match_protocol_tree(capture_file *cf, frame_data *fdata, void *criterion)
2416 match_data *mdata = criterion;
2417 epan_dissect_t *edt;
2419 /* Construct the protocol tree, including the displayed text */
2420 edt = epan_dissect_new(TRUE, TRUE);
2421 /* We don't need the column information */
2422 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2424 /* Iterate through all the nodes, seeing if they have text that matches. */
2426 mdata->frame_matched = FALSE;
2427 proto_tree_children_foreach(edt->tree, match_subtree_text, mdata);
2428 epan_dissect_free(edt);
2429 return mdata->frame_matched;
2433 match_subtree_text(proto_node *node, gpointer data)
2435 match_data *mdata = (match_data*) data;
2436 const gchar *string = mdata->string;
2437 size_t string_len = mdata->string_len;
2438 capture_file *cf = mdata->cf;
2439 field_info *fi = PITEM_FINFO(node);
2440 gchar label_str[ITEM_LABEL_LENGTH];
2447 if (mdata->frame_matched) {
2448 /* We already had a match; don't bother doing any more work. */
2452 /* Don't match invisible entries. */
2453 if (PROTO_ITEM_IS_HIDDEN(node))
2456 /* was a free format label produced? */
2458 label_ptr = fi->rep->representation;
2460 /* no, make a generic label */
2461 label_ptr = label_str;
2462 proto_item_fill_label(fi, label_str);
2465 /* Does that label match? */
2466 label_len = strlen(label_ptr);
2467 for (i = 0; i < label_len; i++) {
2468 c_char = label_ptr[i];
2470 c_char = toupper(c_char);
2471 if (c_char == string[c_match]) {
2473 if (c_match == string_len) {
2474 /* No need to look further; we have a match */
2475 mdata->frame_matched = TRUE;
2482 /* Recurse into the subtree, if it exists */
2483 if (node->first_child != NULL)
2484 proto_tree_children_foreach(node, match_subtree_text, mdata);
2488 cf_find_packet_summary_line(capture_file *cf, const char *string)
2492 mdata.string = string;
2493 mdata.string_len = strlen(string);
2494 return find_packet(cf, match_summary_line, &mdata);
2498 match_summary_line(capture_file *cf, frame_data *fdata, void *criterion)
2500 match_data *mdata = criterion;
2501 const gchar *string = mdata->string;
2502 size_t string_len = mdata->string_len;
2503 epan_dissect_t *edt;
2504 const char *info_column;
2505 size_t info_column_len;
2506 gboolean frame_matched = FALSE;
2512 /* Don't bother constructing the protocol tree */
2513 edt = epan_dissect_new(FALSE, FALSE);
2514 /* Get the column information */
2515 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
2517 /* Find the Info column */
2518 for (colx = 0; colx < cf->cinfo.num_cols; colx++) {
2519 if (cf->cinfo.fmt_matx[colx][COL_INFO]) {
2520 /* Found it. See if we match. */
2521 info_column = edt->pi.cinfo->col_data[colx];
2522 info_column_len = strlen(info_column);
2523 for (i = 0; i < info_column_len; i++) {
2524 c_char = info_column[i];
2526 c_char = toupper(c_char);
2527 if (c_char == string[c_match]) {
2529 if (c_match == string_len) {
2530 frame_matched = TRUE;
2539 epan_dissect_free(edt);
2540 return frame_matched;
2546 } cbs_t; /* "Counted byte string" */
2549 cf_find_packet_data(capture_file *cf, const guint8 *string, size_t string_size)
2554 info.data_len = string_size;
2556 /* String or hex search? */
2558 /* String search - what type of string? */
2559 switch (cf->scs_type) {
2561 case SCS_ASCII_AND_UNICODE:
2562 return find_packet(cf, match_ascii_and_unicode, &info);
2565 return find_packet(cf, match_ascii, &info);
2568 return find_packet(cf, match_unicode, &info);
2571 g_assert_not_reached();
2575 return find_packet(cf, match_binary, &info);
2579 match_ascii_and_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2581 cbs_t *info = criterion;
2582 const char *ascii_text = info->data;
2583 size_t textlen = info->data_len;
2584 gboolean frame_matched;
2590 frame_matched = FALSE;
2591 buf_len = fdata->pkt_len;
2592 for (i = 0; i < buf_len; i++) {
2595 c_char = toupper(c_char);
2597 if (c_char == ascii_text[c_match]) {
2599 if (c_match == textlen) {
2600 frame_matched = TRUE;
2607 return frame_matched;
2611 match_ascii(capture_file *cf, frame_data *fdata, void *criterion)
2613 cbs_t *info = criterion;
2614 const char *ascii_text = info->data;
2615 size_t textlen = info->data_len;
2616 gboolean frame_matched;
2622 frame_matched = FALSE;
2623 buf_len = fdata->pkt_len;
2624 for (i = 0; i < buf_len; i++) {
2627 c_char = toupper(c_char);
2628 if (c_char == ascii_text[c_match]) {
2630 if (c_match == textlen) {
2631 frame_matched = TRUE;
2637 return frame_matched;
2641 match_unicode(capture_file *cf, frame_data *fdata, void *criterion)
2643 cbs_t *info = criterion;
2644 const char *ascii_text = info->data;
2645 size_t textlen = info->data_len;
2646 gboolean frame_matched;
2652 frame_matched = FALSE;
2653 buf_len = fdata->pkt_len;
2654 for (i = 0; i < buf_len; i++) {
2657 c_char = toupper(c_char);
2658 if (c_char == ascii_text[c_match]) {
2661 if (c_match == textlen) {
2662 frame_matched = TRUE;
2668 return frame_matched;
2672 match_binary(capture_file *cf, frame_data *fdata, void *criterion)
2674 cbs_t *info = criterion;
2675 const guint8 *binary_data = info->data;
2676 size_t datalen = info->data_len;
2677 gboolean frame_matched;
2682 frame_matched = FALSE;
2683 buf_len = fdata->pkt_len;
2684 for (i = 0; i < buf_len; i++) {
2685 if (cf->pd[i] == binary_data[c_match]) {
2687 if (c_match == datalen) {
2688 frame_matched = TRUE;
2694 return frame_matched;
2698 cf_find_packet_dfilter(capture_file *cf, dfilter_t *sfcode)
2700 return find_packet(cf, match_dfilter, sfcode);
2704 match_dfilter(capture_file *cf, frame_data *fdata, void *criterion)
2706 dfilter_t *sfcode = criterion;
2707 epan_dissect_t *edt;
2708 gboolean frame_matched;
2710 edt = epan_dissect_new(TRUE, FALSE);
2711 epan_dissect_prime_dfilter(edt, sfcode);
2712 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
2713 frame_matched = dfilter_apply_edt(sfcode, edt);
2714 epan_dissect_free(edt);
2715 return frame_matched;
2719 find_packet(capture_file *cf,
2720 gboolean (*match_function)(capture_file *, frame_data *, void *),
2723 frame_data *start_fd;
2725 frame_data *new_fd = NULL;
2726 progdlg_t *progbar = NULL;
2733 GTimeVal start_time;
2734 gchar status_str[100];
2735 int progbar_nextstep;
2736 int progbar_quantum;
2738 start_fd = cf->current_frame;
2739 if (start_fd != NULL) {
2740 /* Iterate through the list of packets, starting at the packet we've
2741 picked, calling a routine to run the filter on the packet, see if
2742 it matches, and stop if so. */
2746 /* Update the progress bar when it gets to this value. */
2747 progbar_nextstep = 0;
2748 /* When we reach the value that triggers a progress bar update,
2749 bump that value by this amount. */
2750 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
2751 /* Progress so far. */
2755 g_get_current_time(&start_time);
2759 /* Create the progress bar if necessary.
2760 We check on every iteration of the loop, so that it takes no
2761 longer than the standard time to create it (otherwise, for a
2762 large file, we might take considerably longer than that standard
2763 time in order to get to the next progress bar step). */
2764 if (progbar == NULL)
2765 progbar = delayed_create_progress_dlg("Searching", cf->sfilter,
2766 FALSE, &stop_flag, &start_time, progbar_val);
2768 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
2769 when we update it, we have to run the GTK+ main loop to get it
2770 to repaint what's pending, and doing so may involve an "ioctl()"
2771 to see if there's any pending input from an X server, and doing
2772 that for every packet can be costly, especially on a big file. */
2773 if (count >= progbar_nextstep) {
2774 /* let's not divide by zero. I should never be started
2775 * with count == 0, so let's assert that
2777 g_assert(cf->count > 0);
2779 progbar_val = (gfloat) count / cf->count;
2781 if (progbar != NULL) {
2782 g_snprintf(status_str, sizeof(status_str),
2783 "%4u of %u packets", count, cf->count);
2784 update_progress_dlg(progbar, progbar_val, status_str);
2787 progbar_nextstep += progbar_quantum;
2791 /* Well, the user decided to abort the search. Go back to the
2792 frame where we started. */
2797 /* Go past the current frame. */
2798 if (cf->sbackward) {
2799 /* Go on to the previous frame. */
2800 fdata = fdata->prev;
2801 if (fdata == NULL) {
2803 * XXX - other apps have a bit more of a detailed message
2804 * for this, and instead of offering "OK" and "Cancel",
2805 * they offer things such as "Continue" and "Cancel";
2806 * we need an API for popping up alert boxes with
2807 * {Verb} and "Cancel".
2810 if (prefs.gui_find_wrap)
2812 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2813 "%sBeginning of capture exceeded!%s\n\n"
2814 "Search is continued from the end of the capture.",
2815 simple_dialog_primary_start(), simple_dialog_primary_end());
2816 fdata = cf->plist_end; /* wrap around */
2820 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2821 "%sBeginning of capture exceeded!%s\n\n"
2822 "Try searching forwards.",
2823 simple_dialog_primary_start(), simple_dialog_primary_end());
2824 fdata = start_fd; /* stay on previous packet */
2828 /* Go on to the next frame. */
2829 fdata = fdata->next;
2830 if (fdata == NULL) {
2831 if (prefs.gui_find_wrap)
2833 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2834 "%sEnd of capture exceeded!%s\n\n"
2835 "Search is continued from the start of the capture.",
2836 simple_dialog_primary_start(), simple_dialog_primary_end());
2837 fdata = cf->plist; /* wrap around */
2841 simple_dialog(ESD_TYPE_INFO, ESD_BTN_OK,
2842 "%sEnd of capture exceeded!%s\n\n"
2843 "Try searching backwards.",
2844 simple_dialog_primary_start(), simple_dialog_primary_end());
2845 fdata = start_fd; /* stay on previous packet */
2852 /* Is this packet in the display? */
2853 if (fdata->flags.passed_dfilter) {
2854 /* Yes. Load its data. */
2855 if (!wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
2856 cf->pd, fdata->cap_len, &err, &err_info)) {
2857 /* Read error. Report the error, and go back to the frame
2858 where we started. */
2859 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2860 cf_read_error_message(err, err_info), cf->filename);
2865 /* Does it match the search criterion? */
2866 if ((*match_function)(cf, fdata, criterion)) {
2868 break; /* found it! */
2872 if (fdata == start_fd) {
2873 /* We're back to the frame we were on originally, and that frame
2874 doesn't match the search filter. The search failed. */
2879 /* We're done scanning the packets; destroy the progress bar if it
2881 if (progbar != NULL)
2882 destroy_progress_dlg(progbar);
2885 if (new_fd != NULL) {
2886 /* We found a frame. Find what row it's in. */
2887 row = packet_list_find_row_from_data(new_fd);
2888 g_assert(row != -1);
2890 /* Select that row, make it the focus row, and make it visible. */
2891 packet_list_set_selected_row(row);
2892 return TRUE; /* success */
2894 return FALSE; /* failure */
2898 cf_goto_frame(capture_file *cf, guint fnumber)
2903 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
2906 if (fdata == NULL) {
2907 /* we didn't find a packet with that packet number */
2908 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2909 "There is no packet with the packet number %u.", fnumber);
2910 return FALSE; /* we failed to go to that packet */
2912 if (!fdata->flags.passed_dfilter) {
2913 /* that packet currently isn't displayed */
2914 /* XXX - add it to the set of displayed packets? */
2915 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
2916 "The packet number %u isn't currently being displayed.", fnumber);
2917 return FALSE; /* we failed to go to that packet */
2920 /* We found that packet, and it's currently being displayed.
2921 Find what row it's in. */
2922 row = packet_list_find_row_from_data(fdata);
2923 g_assert(row != -1);
2925 /* Select that row, make it the focus row, and make it visible. */
2926 packet_list_set_selected_row(row);
2927 return TRUE; /* we got to that packet */
2931 cf_goto_top_frame(capture_file *cf)
2935 frame_data *lowest_fdata = NULL;
2937 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2938 if (fdata->flags.passed_dfilter) {
2939 lowest_fdata = fdata;
2944 if (lowest_fdata == NULL) {
2948 /* We found that packet, and it's currently being displayed.
2949 Find what row it's in. */
2950 row = packet_list_find_row_from_data(lowest_fdata);
2951 g_assert(row != -1);
2953 /* Select that row, make it the focus row, and make it visible. */
2954 packet_list_set_selected_row(row);
2955 return TRUE; /* we got to that packet */
2959 cf_goto_bottom_frame(capture_file *cf)
2963 frame_data *highest_fdata = NULL;
2965 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
2966 if (fdata->flags.passed_dfilter) {
2967 highest_fdata = fdata;
2971 if (highest_fdata == NULL) {
2975 /* We found that packet, and it's currently being displayed.
2976 Find what row it's in. */
2977 row = packet_list_find_row_from_data(highest_fdata);
2978 g_assert(row != -1);
2980 /* Select that row, make it the focus row, and make it visible. */
2981 packet_list_set_selected_row(row);
2982 return TRUE; /* we got to that packet */
2986 * Go to frame specified by currently selected protocol tree item.
2989 cf_goto_framenum(capture_file *cf)
2991 header_field_info *hfinfo;
2994 if (cf->finfo_selected) {
2995 hfinfo = cf->finfo_selected->hfinfo;
2997 if (hfinfo->type == FT_FRAMENUM) {
2998 framenum = fvalue_get_integer(&cf->finfo_selected->value);
3000 return cf_goto_frame(cf, framenum);
3007 /* Select the packet on a given row. */
3009 cf_select_packet(capture_file *cf, int row)
3015 /* Get the frame data struct pointer for this frame */
3016 fdata = (frame_data *)packet_list_get_row_data(row);
3018 if (fdata == NULL) {
3019 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
3020 the first entry is added to it by "real_insert_row()", that row
3021 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
3022 our version and the vanilla GTK+ version).
3024 This means that a "select-row" signal is emitted; this causes
3025 "packet_list_select_cb()" to be called, which causes "cf_select_packet()"
3028 "cf_select_packet()" fetches, above, the data associated with the
3029 row that was selected; however, as "gtk_clist_append()", which
3030 called "real_insert_row()", hasn't yet returned, we haven't yet
3031 associated any data with that row, so we get back a null pointer.
3033 We can't assume that there's only one frame in the frame list,
3034 either, as we may be filtering the display.
3036 We therefore assume that, if "row" is 0, i.e. the first row
3037 is being selected, and "cf->first_displayed" equals
3038 "cf->last_displayed", i.e. there's only one frame being
3039 displayed, that frame is the frame we want.
3041 This means we have to set "cf->first_displayed" and
3042 "cf->last_displayed" before adding the row to the
3043 GtkCList; see the comment in "add_packet_to_packet_list()". */
3045 if (row == 0 && cf->first_displayed == cf->last_displayed)
3046 fdata = cf->first_displayed;
3049 /* Get the data in that frame. */
3050 if (!wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
3051 cf->pd, fdata->cap_len, &err, &err_info)) {
3052 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3053 cf_read_error_message(err, err_info), cf->filename);
3057 /* Record that this frame is the current frame. */
3058 cf->current_frame = fdata;
3060 /* Create the logical protocol tree. */
3061 if (cf->edt != NULL) {
3062 epan_dissect_free(cf->edt);
3065 /* We don't need the columns here. */
3066 cf->edt = epan_dissect_new(TRUE, TRUE);
3067 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
3070 cf_callback_invoke(cf_cb_packet_selected, cf);
3073 /* Unselect the selected packet, if any. */
3075 cf_unselect_packet(capture_file *cf)
3077 /* Destroy the epan_dissect_t for the unselected packet. */
3078 if (cf->edt != NULL) {
3079 epan_dissect_free(cf->edt);
3083 /* No packet is selected. */
3084 cf->current_frame = NULL;
3086 cf_callback_invoke(cf_cb_packet_unselected, cf);
3088 /* No protocol tree means no selected field. */
3089 cf_unselect_field(cf);
3092 /* Unset the selected protocol tree field, if any. */
3094 cf_unselect_field(capture_file *cf)
3096 cf->finfo_selected = NULL;
3098 cf_callback_invoke(cf_cb_field_unselected, cf);
3102 * Mark a particular frame.
3105 cf_mark_frame(capture_file *cf, frame_data *frame)
3107 if (! frame->flags.marked) {
3108 frame->flags.marked = TRUE;
3109 if (cf->count > cf->marked_count)
3115 * Unmark a particular frame.
3118 cf_unmark_frame(capture_file *cf, frame_data *frame)
3120 if (frame->flags.marked) {
3121 frame->flags.marked = FALSE;
3122 if (cf->marked_count > 0)
3130 } save_callback_args_t;
3133 * Save a capture to a file, in a particular format, saving either
3134 * all packets, all currently-displayed packets, or all marked packets.
3136 * Returns TRUE if it succeeds, FALSE otherwise; if it fails, it pops
3137 * up a message box for the failure.
3140 save_packet(capture_file *cf _U_, frame_data *fdata,
3141 union wtap_pseudo_header *pseudo_header, const guint8 *pd,
3144 save_callback_args_t *args = argsp;
3145 struct wtap_pkthdr hdr;
3148 /* init the wtap header for saving */
3149 hdr.ts = *(struct wtap_nstime *) &fdata->abs_ts;
3150 hdr.caplen = fdata->cap_len;
3151 hdr.len = fdata->pkt_len;
3152 hdr.pkt_encap = fdata->lnk_t;
3154 /* and save the packet */
3155 if (!wtap_dump(args->pdh, &hdr, pseudo_header, pd, &err)) {
3156 cf_write_failure_alert_box(args->fname, err);
3163 cf_save(capture_file *cf, const char *fname, packet_range_t *range, guint save_format, gboolean compressed)
3165 gchar *from_filename;
3169 save_callback_args_t callback_args;
3171 cf_callback_invoke(cf_cb_file_safe_started, (gpointer) fname);
3173 /* don't write over an existing file. */
3174 /* this should've been already checked by our caller, just to be sure... */
3175 if (file_exists(fname)) {
3176 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3177 "%sCapture file: \"%s\" already exists!%s\n\n"
3178 "Please choose a different filename.",
3179 simple_dialog_primary_start(), fname, simple_dialog_primary_end());
3183 packet_range_process_init(range);
3186 if (packet_range_process_all(range) && save_format == cf->cd_t) {
3187 /* We're not filtering packets, and we're saving it in the format
3188 it's already in, so we can just move or copy the raw data. */
3190 if (cf->is_tempfile) {
3191 /* The file being saved is a temporary file from a live
3192 capture, so it doesn't need to stay around under that name;
3193 first, try renaming the capture buffer file to the new name. */
3195 if (eth_rename(cf->filename, fname) == 0) {
3196 /* That succeeded - there's no need to copy the source file. */
3197 from_filename = NULL;
3200 if (errno == EXDEV) {
3201 /* They're on different file systems, so we have to copy the
3204 from_filename = cf->filename;
3206 /* The rename failed, but not because they're on different
3207 file systems - put up an error message. (Or should we
3208 just punt and try to copy? The only reason why I'd
3209 expect the rename to fail and the copy to succeed would
3210 be if we didn't have permission to remove the file from
3211 the temporary directory, and that might be fixable - but
3212 is it worth requiring the user to go off and fix it?) */
3213 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3214 file_rename_error_message(errno), fname);
3220 from_filename = cf->filename;
3223 /* It's a permanent file, so we should copy it, and not remove the
3226 from_filename = cf->filename;
3230 /* Copy the file, if we haven't moved it. */
3231 if (!copy_binary_file(from_filename, fname))
3235 /* Either we're filtering packets, or we're saving in a different
3236 format; we can't do that by copying or moving the capture file,
3237 we have to do it by writing the packets out in Wiretap. */
3238 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap,
3241 cf_open_failure_alert_box(fname, err, NULL, TRUE, save_format);
3245 /* XXX - we let the user save a subset of the packets.
3247 If we do that, should we make that file the current file? If so,
3248 it means we can no longer get at the other packets. What does
3251 /* Iterate through the list of packets, processing the packets we were
3254 XXX - we've already called "packet_range_process_init(range)", but
3255 "process_specified_packets()" will do it again. Fortunately,
3256 that's harmless in this case, as we haven't done anything to
3257 "range" since we initialized it. */
3258 callback_args.pdh = pdh;
3259 callback_args.fname = fname;
3260 switch (process_specified_packets(cf, range, "Saving", "selected packets",
3261 TRUE, save_packet, &callback_args)) {
3264 /* Completed successfully. */
3268 /* The user decided to abort the saving.
3269 XXX - remove the output file? */
3273 /* Error while saving. */
3274 wtap_dump_close(pdh, &err);
3278 if (!wtap_dump_close(pdh, &err)) {
3279 cf_close_failure_alert_box(fname, err);
3284 cf_callback_invoke(cf_cb_file_safe_finished, NULL);
3286 if (packet_range_process_all(range)) {
3287 /* We saved the entire capture, not just some packets from it.
3288 Open and read the file we saved it to.
3290 XXX - this is somewhat of a waste; we already have the
3291 packets, all this gets us is updated file type information
3292 (which we could just stuff into "cf"), and having the new
3293 file be the one we have opened and from which we're reading
3294 the data, and it means we have to spend time opening and
3295 reading the file, which could be a significant amount of
3296 time if the file is large. */
3297 cf->user_saved = TRUE;
3299 if ((cf_open(cf, fname, FALSE, &err)) == CF_OK) {
3300 /* XXX - report errors if this fails?
3301 What should we return if it fails or is aborted? */
3302 switch (cf_read(cf)) {
3306 /* Just because we got an error, that doesn't mean we were unable
3307 to read any of the file; we handle what we could get from the
3311 case CF_READ_ABORTED:
3312 /* The user bailed out of re-reading the capture file; the
3313 capture file has been closed - just return (without
3314 changing any menu settings; "cf_close()" set them
3315 correctly for the "no capture file open" state). */
3318 cf_callback_invoke(cf_cb_file_safe_reload_finished, NULL);
3324 cf_callback_invoke(cf_cb_file_safe_failed, NULL);
3329 cf_open_failure_alert_box(const char *filename, int err, gchar *err_info,
3330 gboolean for_writing, int file_type)
3333 /* Wiretap error. */
3336 case WTAP_ERR_NOT_REGULAR_FILE:
3337 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3338 "The file \"%s\" is a \"special file\" or socket or other non-regular file.",
3342 case WTAP_ERR_RANDOM_OPEN_PIPE:
3343 /* Seen only when opening a capture file for reading. */
3344 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3345 "The file \"%s\" is a pipe or FIFO; Ethereal can't read pipe or FIFO files.",
3349 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
3350 /* Seen only when opening a capture file for reading. */
3351 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3352 "The file \"%s\" isn't a capture file in a format Ethereal understands.",
3356 case WTAP_ERR_UNSUPPORTED:
3357 /* Seen only when opening a capture file for reading. */
3358 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3359 "The file \"%s\" isn't a capture file in a format Ethereal understands.\n"
3361 filename, err_info);
3365 case WTAP_ERR_CANT_WRITE_TO_PIPE:
3366 /* Seen only when opening a capture file for writing. */
3367 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3368 "The file \"%s\" is a pipe, and %s capture files can't be "
3369 "written to a pipe.",
3370 filename, wtap_file_type_string(file_type));
3373 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
3374 /* Seen only when opening a capture file for writing. */
3375 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3376 "Ethereal doesn't support writing capture files in that format.");
3379 case WTAP_ERR_UNSUPPORTED_ENCAP:
3381 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3382 "Ethereal can't save this capture in that format.");
3384 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3385 "The file \"%s\" is a capture for a network type that Ethereal doesn't support.\n"
3387 filename, err_info);
3392 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
3394 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3395 "Ethereal can't save this capture in that format.");
3397 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3398 "The file \"%s\" is a capture for a network type that Ethereal doesn't support.",
3403 case WTAP_ERR_BAD_RECORD:
3404 /* Seen only when opening a capture file for reading. */
3405 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3406 "The file \"%s\" appears to be damaged or corrupt.\n"
3408 filename, err_info);
3412 case WTAP_ERR_CANT_OPEN:
3414 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3415 "The file \"%s\" could not be created for some unknown reason.",
3418 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3419 "The file \"%s\" could not be opened for some unknown reason.",
3424 case WTAP_ERR_SHORT_READ:
3425 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3426 "The file \"%s\" appears to have been cut short"
3427 " in the middle of a packet or other data.",
3431 case WTAP_ERR_SHORT_WRITE:
3432 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3433 "A full header couldn't be written to the file \"%s\".",
3437 case WTAP_ERR_COMPRESSION_NOT_SUPPORTED:
3438 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3439 "Gzip compression not supported by this file type.");
3443 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3444 "The file \"%s\" could not be %s: %s.",
3446 for_writing ? "created" : "opened",
3447 wtap_strerror(err));
3452 open_failure_alert_box(filename, err, for_writing);
3457 file_rename_error_message(int err)
3460 static char errmsg_errno[1024+1];
3465 errmsg = "The path to the file \"%s\" doesn't exist.";
3469 errmsg = "You don't have permission to move the capture file to \"%s\".";
3473 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3474 "The file \"%%s\" could not be moved: %s.",
3475 wtap_strerror(err));
3476 errmsg = errmsg_errno;
3483 cf_read_error_message(int err, const gchar *err_info)
3485 static char errmsg_errno[1024+1];
3489 case WTAP_ERR_UNSUPPORTED_ENCAP:
3490 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3491 "The file \"%%s\" has a packet with a network type that Ethereal doesn't support.\n(%s)",
3495 case WTAP_ERR_BAD_RECORD:
3496 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3497 "An error occurred while reading from the file \"%%s\": %s.\n(%s)",
3498 wtap_strerror(err), err_info);
3502 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
3503 "An error occurred while reading from the file \"%%s\": %s.",
3504 wtap_strerror(err));
3507 return errmsg_errno;
3511 cf_write_failure_alert_box(const char *filename, int err)
3514 /* Wiretap error. */
3515 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3516 "An error occurred while writing to the file \"%s\": %s.",
3517 filename, wtap_strerror(err));
3520 write_failure_alert_box(filename, err);
3524 /* Check for write errors - if the file is being written to an NFS server,
3525 a write error may not show up until the file is closed, as NFS clients
3526 might not send writes to the server until the "write()" call finishes,
3527 so that the write may fail on the server but the "write()" may succeed. */
3529 cf_close_failure_alert_box(const char *filename, int err)
3532 /* Wiretap error. */
3535 case WTAP_ERR_CANT_CLOSE:
3536 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3537 "The file \"%s\" couldn't be closed for some unknown reason.",
3541 case WTAP_ERR_SHORT_WRITE:
3542 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3543 "Not all the packets could be written to the file \"%s\".",
3548 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3549 "An error occurred while closing the file \"%s\": %s.",
3550 filename, wtap_strerror(err));
3555 We assume that a close error from the OS is really a write error. */
3556 write_failure_alert_box(filename, err);
3560 /* Reload the current capture file. */
3562 cf_reload(capture_file *cf) {
3564 gboolean is_tempfile;
3567 /* If the file could be opened, "cf_open()" calls "cf_close()"
3568 to get rid of state for the old capture file before filling in state
3569 for the new capture file. "cf_close()" will remove the file if
3570 it's a temporary file; we don't want that to happen (for one thing,
3571 it'd prevent subsequent reopens from working). Remember whether it's
3572 a temporary file, mark it as not being a temporary file, and then
3573 reopen it as the type of file it was.
3575 Also, "cf_close()" will free "cf->filename", so we must make
3576 a copy of it first. */
3577 filename = g_strdup(cf->filename);
3578 is_tempfile = cf->is_tempfile;
3579 cf->is_tempfile = FALSE;
3580 if (cf_open(cf, filename, is_tempfile, &err) == CF_OK) {
3581 switch (cf_read(cf)) {
3585 /* Just because we got an error, that doesn't mean we were unable
3586 to read any of the file; we handle what we could get from the
3590 case CF_READ_ABORTED:
3591 /* The user bailed out of re-reading the capture file; the
3592 capture file has been closed - just free the capture file name
3593 string and return (without changing the last containing
3599 /* The open failed, so "cf->is_tempfile" wasn't set to "is_tempfile".
3600 Instead, the file was left open, so we should restore "cf->is_tempfile"
3603 XXX - change the menu? Presumably "cf_open()" will do that;
3604 make sure it does! */
3605 cf->is_tempfile = is_tempfile;
3607 /* "cf_open()" made a copy of the file name we handed it, so
3608 we should free up our copy. */
3612 /* Copies a file in binary mode, for those operating systems that care about
3614 * Returns TRUE on success, FALSE on failure. If a failure, it also
3615 * displays a simple dialog window with the error message.
3618 copy_binary_file(const char *from_filename, const char *to_filename)
3620 int from_fd, to_fd, nread, nwritten, err;
3623 /* Copy the raw bytes of the file. */
3624 from_fd = eth_open(from_filename, O_RDONLY | O_BINARY, 0000 /* no creation so don't matter */);
3626 open_failure_alert_box(from_filename, errno, FALSE);
3630 /* Use open() instead of creat() so that we can pass the O_BINARY
3631 flag, which is relevant on Win32; it appears that "creat()"
3632 may open the file in text mode, not binary mode, but we want
3633 to copy the raw bytes of the file, so we need the output file
3634 to be open in binary mode. */
3635 to_fd = eth_open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
3637 open_failure_alert_box(to_filename, errno, TRUE);
3642 while ((nread = eth_read(from_fd, pd, sizeof pd)) > 0) {
3643 nwritten = eth_write(to_fd, pd, nread);
3644 if (nwritten < nread) {
3648 err = WTAP_ERR_SHORT_WRITE;
3649 write_failure_alert_box(to_filename, err);
3657 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
3658 "An error occurred while reading from the file \"%s\": %s.",
3659 from_filename, strerror(err));
3665 if (eth_close(to_fd) < 0) {
3666 write_failure_alert_box(to_filename, errno);