4 * $Id: file.c,v 1.268 2002/04/20 01:54:27 guy Exp $
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.
47 #ifdef HAVE_SYS_STAT_H
55 #ifdef NEED_SNPRINTF_H
56 # include "snprintf.h"
59 #ifdef NEED_STRERROR_H
63 #ifdef HAVE_SYS_TYPES_H
64 # include <sys/types.h>
67 #ifdef HAVE_NETINET_IN_H
68 # include <netinet/in.h>
71 #include <epan/epan.h>
72 #include <epan/filesystem.h>
76 #include "gtk/color_utils.h"
78 #include <epan/packet.h>
83 #include "simple_dialog.h"
84 #include "progress_dlg.h"
86 #include "statusbar.h"
88 #include "gtk/proto_draw.h"
89 #include "gtk/packet_win.h"
90 #include <epan/dfilter/dfilter.h>
91 #include <epan/conversation.h>
93 #include "gtk/colors.h"
94 #include <epan/epan_dissect.h>
96 extern GtkWidget *packet_list, *byte_nb_ptr, *tree_view;
99 gboolean auto_scroll_live;
102 static guint32 firstsec, firstusec;
103 static guint32 prevsec, prevusec;
105 static void read_packet(capture_file *cf, long offset);
107 static void rescan_packets(capture_file *cf, const char *action,
108 gboolean refilter, gboolean redissect);
110 static void set_selected_row(int row);
112 static void freeze_clist(capture_file *cf);
113 static void thaw_clist(capture_file *cf);
115 static char *file_rename_error_message(int err);
116 static char *file_close_error_message(int err);
117 static gboolean copy_binary_file(char *from_filename, char *to_filename);
119 /* Update the progress bar this many times when reading a file. */
120 #define N_PROGBAR_UPDATES 100
122 /* Number of "frame_data" structures per memory chunk.
123 XXX - is this the right number? */
124 #define FRAME_DATA_CHUNK_SIZE 1024
127 open_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
134 wth = wtap_open_offline(fname, &err, TRUE);
138 /* Find the size of the file. */
140 if (fstat(fd, &cf_stat) < 0) {
146 /* The open succeeded. Close whatever capture file we had open,
147 and fill in the information for this file. */
150 /* Initialize all data structures used for dissection. */
153 /* We're about to start reading the file. */
154 cf->state = FILE_READ_IN_PROGRESS;
158 cf->f_len = cf_stat.st_size;
160 /* Set the file name because we need it to set the follow stream filter.
161 XXX - is that still true? We need it for other reasons, though,
163 cf->filename = g_strdup(fname);
165 /* Indicate whether it's a permanent or temporary file. */
166 cf->is_tempfile = is_tempfile;
168 /* If it's a temporary capture buffer file, mark it as not saved. */
169 cf->user_saved = !is_tempfile;
171 cf->cd_t = wtap_file_type(cf->wth);
173 cf->marked_count = 0;
174 cf->drops_known = FALSE;
178 cf->snap = wtap_snapshot_length(cf->wth);
180 /* Snapshot length not known. */
181 cf->has_snap = FALSE;
182 cf->snap = WTAP_MAX_PACKET_SIZE;
185 cf->progbar_quantum = 0;
186 cf->progbar_nextstep = 0;
187 firstsec = 0, firstusec = 0;
188 prevsec = 0, prevusec = 0;
190 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
192 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
194 g_assert(cf->plist_chunk);
199 simple_dialog(ESD_TYPE_CRIT, NULL,
200 file_open_error_message(err, FALSE), fname);
204 /* Reset everything to a pristine state */
206 close_cap_file(capture_file *cf)
208 /* Die if we're in the middle of reading a file. */
209 g_assert(cf->state != FILE_READ_IN_PROGRESS);
211 /* Destroy all popup packet windows, as they refer to packets in the
212 capture file we're closing. */
213 destroy_packet_wins();
219 /* We have no file open... */
220 if (cf->filename != NULL) {
221 /* If it's a temporary file, remove it. */
223 unlink(cf->filename);
224 g_free(cf->filename);
227 /* ...which means we have nothing to save. */
228 cf->user_saved = FALSE;
230 if (cf->plist_chunk != NULL) {
231 g_mem_chunk_destroy(cf->plist_chunk);
232 cf->plist_chunk = NULL;
234 if (cf->rfcode != NULL) {
235 dfilter_free(cf->rfcode);
239 cf->plist_end = NULL;
240 unselect_packet(cf); /* nothing to select */
241 cf->first_displayed = NULL;
242 cf->last_displayed = NULL;
244 /* Clear the packet list. */
245 gtk_clist_freeze(GTK_CLIST(packet_list));
246 gtk_clist_clear(GTK_CLIST(packet_list));
247 gtk_clist_thaw(GTK_CLIST(packet_list));
249 /* Clear any file-related status bar messages.
250 XXX - should be "clear *ALL* file-related status bar messages;
251 will there ever be more than one on the stack? */
252 statusbar_pop_file_msg();
254 /* Restore the standard title bar message. */
255 set_main_window_name("The Ethereal Network Analyzer");
257 /* Disable all menu items that make sense only if you have a capture. */
258 set_menus_for_capture_file(FALSE);
259 set_menus_for_unsaved_capture_file(FALSE);
260 set_menus_for_captured_packets(FALSE);
261 set_menus_for_selected_packet(FALSE);
262 set_menus_for_capture_in_progress(FALSE);
263 set_menus_for_selected_tree_row(FALSE);
265 /* We have no file open. */
266 cf->state = FILE_CLOSED;
269 /* Set the file name in the status line, in the name for the main window,
270 and in the name for the main window's icon. */
272 set_display_filename(capture_file *cf)
276 static const gchar done_fmt_nodrops[] = " File: %s";
277 static const gchar done_fmt_drops[] = " File: %s Drops: %u";
279 gchar *win_name_fmt = "%s - Ethereal";
282 if (!cf->is_tempfile) {
283 /* Get the last component of the file name, and put that in the
285 name_ptr = get_basename(cf->filename);
287 /* The file we read is a temporary file from a live capture;
288 we don't mention its name in the status bar. */
289 name_ptr = "<capture>";
292 if (cf->drops_known) {
293 msg_len = strlen(name_ptr) + strlen(done_fmt_drops) + 64;
294 done_msg = g_malloc(msg_len);
295 snprintf(done_msg, msg_len, done_fmt_drops, name_ptr, cf->drops);
297 msg_len = strlen(name_ptr) + strlen(done_fmt_nodrops);
298 done_msg = g_malloc(msg_len);
299 snprintf(done_msg, msg_len, done_fmt_nodrops, name_ptr);
301 statusbar_push_file_msg(done_msg);
304 msg_len = strlen(name_ptr) + strlen(win_name_fmt) + 1;
305 win_name = g_malloc(msg_len);
306 snprintf(win_name, msg_len, win_name_fmt, name_ptr);
307 set_main_window_name(win_name);
312 read_cap_file(capture_file *cf, int *err)
314 gchar *name_ptr, *load_msg, *load_fmt = " Loading: %s...";
317 char errmsg_errno[1024+1];
318 gchar err_str[2048+1];
325 name_ptr = get_basename(cf->filename);
327 msg_len = strlen(name_ptr) + strlen(load_fmt) + 2;
328 load_msg = g_malloc(msg_len);
329 snprintf(load_msg, msg_len, load_fmt, name_ptr);
330 statusbar_push_file_msg(load_msg);
332 /* Update the progress bar when it gets to this value. */
333 cf->progbar_nextstep = 0;
334 /* When we reach the value that triggers a progress bar update,
335 bump that value by this amount. */
336 cf->progbar_quantum = cf->f_len/N_PROGBAR_UPDATES;
345 progbar = create_progress_dlg(load_msg, "Stop", &stop_flag);
348 while ((wtap_read(cf->wth, err, &data_offset))) {
349 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
350 when we update it, we have to run the GTK+ main loop to get it
351 to repaint what's pending, and doing so may involve an "ioctl()"
352 to see if there's any pending input from an X server, and doing
353 that for every packet can be costly, especially on a big file. */
354 if (data_offset >= cf->progbar_nextstep) {
355 file_pos = lseek(cf->filed, 0, SEEK_CUR);
356 prog_val = (gfloat) file_pos / (gfloat) cf->f_len;
357 update_progress_dlg(progbar, prog_val);
358 cf->progbar_nextstep += cf->progbar_quantum;
362 /* Well, the user decided to abort the read. Destroy the progress
363 bar, close the capture file, and return READ_ABORTED so our caller
364 can do whatever is appropriate when that happens. */
365 destroy_progress_dlg(progbar);
366 cf->state = FILE_READ_ABORTED; /* so that we're allowed to close it */
367 gtk_clist_thaw(GTK_CLIST(packet_list)); /* undo our freeze */
369 return (READ_ABORTED);
371 read_packet(cf, data_offset);
374 /* We're done reading the file; destroy the progress bar. */
375 destroy_progress_dlg(progbar);
377 /* We're done reading sequentially through the file. */
378 cf->state = FILE_READ_DONE;
380 /* Close the sequential I/O side, to free up memory it requires. */
381 wtap_sequential_close(cf->wth);
383 /* Allow the protocol dissectors to free up memory that they
384 * don't need after the sequential run-through of the packets. */
385 postseq_cleanup_all_protocols();
387 /* Set the file encapsulation type now; we don't know what it is until
388 we've looked at all the packets, as we don't know until then whether
389 there's more than one type (and thus whether it's
390 WTAP_ENCAP_PER_PACKET). */
391 cf->lnk_t = wtap_file_encap(cf->wth);
393 cf->current_frame = cf->first_displayed;
396 statusbar_pop_file_msg();
397 set_display_filename(cf);
399 /* Enable menu items that make sense if you have a capture file you've
401 set_menus_for_capture_file(TRUE);
402 set_menus_for_unsaved_capture_file(!cf->user_saved);
404 /* Enable menu items that make sense if you have some captured packets. */
405 set_menus_for_captured_packets(TRUE);
407 /* If we have any displayed packets to select, select the first of those
408 packets by making the first row the selected row. */
409 if (cf->first_displayed != NULL)
410 gtk_signal_emit_by_name(GTK_OBJECT(packet_list), "select_row", 0);
413 /* Put up a message box noting that the read failed somewhere along
414 the line. Don't throw out the stuff we managed to read, though,
418 case WTAP_ERR_UNSUPPORTED_ENCAP:
419 errmsg = "The capture file is for a network type that Ethereal doesn't support.";
422 case WTAP_ERR_CANT_READ:
423 errmsg = "An attempt to read from the file failed for"
424 " some unknown reason.";
427 case WTAP_ERR_SHORT_READ:
428 errmsg = "The capture file appears to have been cut short"
429 " in the middle of a packet.";
432 case WTAP_ERR_BAD_RECORD:
433 errmsg = "The capture file appears to be damaged or corrupt.";
437 snprintf(errmsg_errno, sizeof(errmsg_errno),
438 "An error occurred while reading the"
439 " capture file: %s.", wtap_strerror(*err));
440 errmsg = errmsg_errno;
443 snprintf(err_str, sizeof err_str, errmsg);
444 simple_dialog(ESD_TYPE_CRIT, NULL, err_str);
447 return (READ_SUCCESS);
452 start_tail_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
457 err = open_cap_file(fname, is_tempfile, cf);
459 /* Disable menu items that make no sense if you're currently running
461 set_menus_for_capture_in_progress(TRUE);
463 /* Enable menu items that make sense if you have some captured
464 packets (yes, I know, we don't have any *yet*). */
465 set_menus_for_captured_packets(TRUE);
467 for (i = 0; i < cf->cinfo.num_cols; i++) {
468 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_LIVE)
469 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
471 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
472 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
473 cf->cinfo.col_width[i]);
474 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
478 statusbar_push_file_msg(" <live capture in progress>");
484 continue_tail_cap_file(capture_file *cf, int to_read, int *err)
486 long data_offset = 0;
488 gtk_clist_freeze(GTK_CLIST(packet_list));
490 while (to_read != 0 && (wtap_read(cf->wth, err, &data_offset))) {
491 if (cf->state == FILE_READ_ABORTED) {
492 /* Well, the user decided to exit Ethereal. Break out of the
493 loop, and let the code below (which is called even if there
494 aren't any packets left to read) exit. */
497 read_packet(cf, data_offset);
501 gtk_clist_thaw(GTK_CLIST(packet_list));
503 /* XXX - this cheats and looks inside the packet list to find the final
505 if (auto_scroll_live && cf->plist_end != NULL)
506 gtk_clist_moveto(GTK_CLIST(packet_list),
507 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
509 if (cf->state == FILE_READ_ABORTED) {
510 /* Well, the user decided to exit Ethereal. Return READ_ABORTED
511 so that our caller can kill off the capture child process;
512 this will cause an EOF on the pipe from the child, so
513 "finish_tail_cap_file()" will be called, and it will clean up
516 } else if (*err != 0) {
517 /* We got an error reading the capture file.
518 XXX - pop up a dialog box? */
521 return (READ_SUCCESS);
525 finish_tail_cap_file(capture_file *cf, int *err)
529 gtk_clist_freeze(GTK_CLIST(packet_list));
531 while ((wtap_read(cf->wth, err, &data_offset))) {
532 if (cf->state == FILE_READ_ABORTED) {
533 /* Well, the user decided to abort the read. Break out of the
534 loop, and let the code below (which is called even if there
535 aren't any packets left to read) exit. */
538 read_packet(cf, data_offset);
541 if (cf->state == FILE_READ_ABORTED) {
542 /* Well, the user decided to abort the read. We're only called
543 when the child capture process closes the pipe to us (meaning
544 it's probably exited), so we can just close the capture
545 file; we return READ_ABORTED so our caller can do whatever
546 is appropriate when that happens. */
552 if (auto_scroll_live && cf->plist_end != NULL)
553 /* XXX - this cheats and looks inside the packet list to find the final
555 gtk_clist_moveto(GTK_CLIST(packet_list),
556 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
558 /* We're done reading sequentially through the file. */
559 cf->state = FILE_READ_DONE;
561 /* We're done reading sequentially through the file; close the
562 sequential I/O side, to free up memory it requires. */
563 wtap_sequential_close(cf->wth);
565 /* Allow the protocol dissectors to free up memory that they
566 * don't need after the sequential run-through of the packets. */
567 postseq_cleanup_all_protocols();
569 /* Set the file encapsulation type now; we don't know what it is until
570 we've looked at all the packets, as we don't know until then whether
571 there's more than one type (and thus whether it's
572 WTAP_ENCAP_PER_PACKET). */
573 cf->lnk_t = wtap_file_encap(cf->wth);
575 /* Pop the "<live capture in progress>" message off the status bar. */
576 statusbar_pop_file_msg();
578 set_display_filename(cf);
580 /* Enable menu items that make sense if you're not currently running
582 set_menus_for_capture_in_progress(FALSE);
584 /* Enable menu items that make sense if you have a capture file
585 you've finished reading. */
586 set_menus_for_capture_file(TRUE);
587 set_menus_for_unsaved_capture_file(!cf->user_saved);
590 /* We got an error reading the capture file.
591 XXX - pop up a dialog box? */
594 return (READ_SUCCESS);
596 #endif /* HAVE_LIBPCAP */
599 color_filter_t *colorf;
601 } apply_color_filter_args;
604 * If no color filter has been applied, apply this one.
605 * (The "if no color filter has been applied" is to handle the case where
606 * more than one color filter matches the packet.)
609 apply_color_filter(gpointer filter_arg, gpointer argp)
611 color_filter_t *colorf = filter_arg;
612 apply_color_filter_args *args = argp;
614 if (colorf->c_colorfilter != NULL && args->colorf == NULL) {
615 if (dfilter_apply_edt(colorf->c_colorfilter, args->edt))
616 args->colorf = colorf;
621 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
622 union wtap_pseudo_header *pseudo_header, const u_char *buf,
625 apply_color_filter_args args;
627 gboolean create_proto_tree = FALSE;
631 /* We don't yet have a color filter to apply. */
634 /* If we don't have the time stamp of the first packet in the
635 capture, it's because this is the first packet. Save the time
636 stamp of this packet as the time stamp of the first packet. */
637 if (!firstsec && !firstusec) {
638 firstsec = fdata->abs_secs;
639 firstusec = fdata->abs_usecs;
644 we have a display filter and are re-applying it;
646 we have a list of color filters;
648 allocate a protocol tree root node, so that we'll construct
649 a protocol tree against which a filter expression can be
651 if ((cf->dfcode != NULL && refilter) || filter_list != NULL)
652 create_proto_tree = TRUE;
654 /* Dissect the frame. */
655 edt = epan_dissect_new(create_proto_tree, FALSE);
657 if (cf->dfcode != NULL && refilter) {
658 epan_dissect_prime_dfilter(edt, cf->dfcode);
661 filter_list_prime_edt(edt);
663 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
666 /* If we have a display filter, apply it if we're refiltering, otherwise
667 leave the "passed_dfilter" flag alone.
669 If we don't have a display filter, set "passed_dfilter" to 1. */
670 if (cf->dfcode != NULL) {
672 if (cf->dfcode != NULL)
673 fdata->flags.passed_dfilter = dfilter_apply_edt(cf->dfcode, edt) ? 1 : 0;
675 fdata->flags.passed_dfilter = 1;
678 fdata->flags.passed_dfilter = 1;
680 /* If we have color filters, and the frame is to be displayed, apply
681 the color filters. */
682 if (fdata->flags.passed_dfilter) {
683 if (filter_list != NULL) {
685 g_slist_foreach(filter_list, apply_color_filter, &args);
690 if (fdata->flags.passed_dfilter) {
691 /* This frame passed the display filter, so add it to the clist. */
693 /* If we don't have the time stamp of the previous displayed packet,
694 it's because this is the first displayed packet. Save the time
695 stamp of this packet as the time stamp of the previous displayed
697 if (!prevsec && !prevusec) {
698 prevsec = fdata->abs_secs;
699 prevusec = fdata->abs_usecs;
702 /* Get the time elapsed between the first packet and this packet. */
703 compute_timestamp_diff(&fdata->rel_secs, &fdata->rel_usecs,
704 fdata->abs_secs, fdata->abs_usecs, firstsec, firstusec);
706 /* If it's greater than the current elapsed time, set the elapsed time
707 to it (we check for "greater than" so as not to be confused by
708 time moving backwards). */
709 if ((gint32)cf->esec < fdata->rel_secs
710 || ((gint32)cf->esec == fdata->rel_secs && (gint32)cf->eusec < fdata->rel_usecs)) {
711 cf->esec = fdata->rel_secs;
712 cf->eusec = fdata->rel_usecs;
715 /* Get the time elapsed between the previous displayed packet and
717 compute_timestamp_diff(&fdata->del_secs, &fdata->del_usecs,
718 fdata->abs_secs, fdata->abs_usecs, prevsec, prevusec);
719 prevsec = fdata->abs_secs;
720 prevusec = fdata->abs_usecs;
722 epan_dissect_fill_in_columns(edt);
724 /* If we haven't yet seen the first frame, this is it.
726 XXX - we must do this before we add the row to the display,
727 as, if the display's GtkCList's selection mode is
728 GTK_SELECTION_BROWSE, when the first entry is added to it,
729 "select_packet()" will be called, and it will fetch the row
730 data for the 0th row, and will get a null pointer rather than
731 "fdata", as "gtk_clist_append()" won't yet have returned and
732 thus "gtk_clist_set_row_data()" won't yet have been called.
734 We thus need to leave behind bread crumbs so that
735 "select_packet()" can find this frame. See the comment
736 in "select_packet()". */
737 if (cf->first_displayed == NULL)
738 cf->first_displayed = fdata;
740 /* This is the last frame we've seen so far. */
741 cf->last_displayed = fdata;
743 row = gtk_clist_append(GTK_CLIST(packet_list), cf->cinfo.col_data);
744 gtk_clist_set_row_data(GTK_CLIST(packet_list), row, fdata);
746 if (fdata->flags.marked) {
747 color_t_to_gdkcolor(&bg, &prefs.gui_marked_bg);
748 color_t_to_gdkcolor(&fg, &prefs.gui_marked_fg);
749 } else if (filter_list != NULL && (args.colorf != NULL)) {
750 bg = args.colorf->bg_color;
751 fg = args.colorf->fg_color;
756 gtk_clist_set_background(GTK_CLIST(packet_list), row, &bg);
757 gtk_clist_set_foreground(GTK_CLIST(packet_list), row, &fg);
759 /* This frame didn't pass the display filter, so it's not being added
760 to the clist, and thus has no row. */
763 epan_dissect_free(edt);
768 read_packet(capture_file *cf, long offset)
770 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
771 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
772 const u_char *buf = wtap_buf_ptr(cf->wth);
775 frame_data *plist_end;
778 /* Allocate the next list entry, and add it to the list. */
779 fdata = g_mem_chunk_alloc(cf->plist_chunk);
784 fdata->data_src = NULL;
785 fdata->pkt_len = phdr->len;
786 fdata->cap_len = phdr->caplen;
787 fdata->file_off = offset;
788 fdata->lnk_t = phdr->pkt_encap;
789 fdata->abs_secs = phdr->ts.tv_sec;
790 fdata->abs_usecs = phdr->ts.tv_usec;
791 fdata->flags.encoding = CHAR_ASCII;
792 fdata->flags.visited = 0;
793 fdata->flags.marked = 0;
797 edt = epan_dissect_new(TRUE, FALSE);
798 epan_dissect_prime_dfilter(edt, cf->rfcode);
799 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
800 passed = dfilter_apply_edt(cf->rfcode, edt);
801 epan_dissect_free(edt);
804 plist_end = cf->plist_end;
805 fdata->prev = plist_end;
806 if (plist_end != NULL)
807 plist_end->next = fdata;
810 cf->plist_end = fdata;
813 fdata->num = cf->count;
814 add_packet_to_packet_list(fdata, cf, pseudo_header, buf, TRUE);
816 /* XXX - if we didn't have read filters, or if we could avoid
817 allocating the "frame_data" structure until we knew whether
818 the frame passed the read filter, we could use a G_ALLOC_ONLY
821 ...but, at least in one test I did, where I just made the chunk
822 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
823 seem to save a noticeable amount of time or space. */
824 g_mem_chunk_free(cf->plist_chunk, fdata);
829 filter_packets(capture_file *cf, gchar *dftext)
833 if (dftext == NULL) {
834 /* The new filter is an empty filter (i.e., display all packets). */
838 * We have a filter; try to compile it.
840 if (!dfilter_compile(dftext, &dfcode)) {
841 /* The attempt failed; report an error. */
842 simple_dialog(ESD_TYPE_CRIT, NULL, dfilter_error_msg);
847 if (dfcode == NULL) {
848 /* Yes - free the filter text, and set it to null. */
854 /* We have a valid filter. Replace the current filter. */
855 if (cf->dfilter != NULL)
857 cf->dfilter = dftext;
858 if (cf->dfcode != NULL)
859 dfilter_free(cf->dfcode);
862 /* Now rescan the packet list, applying the new filter, but not
863 throwing away information constructed on a previous pass. */
864 rescan_packets(cf, "Filtering", TRUE, FALSE);
869 colorize_packets(capture_file *cf)
871 rescan_packets(cf, "Colorizing", FALSE, FALSE);
875 redissect_packets(capture_file *cf)
877 rescan_packets(cf, "Reprocessing", TRUE, TRUE);
880 /* Rescan the list of packets, reconstructing the CList.
882 "action" describes why we're doing this; it's used in the progress
885 "refilter" is TRUE if we need to re-evaluate the filter expression.
887 "redissect" is TRUE if we need to make the dissectors reconstruct
888 any state information they have (because a preference that affects
889 some dissector has changed, meaning some dissector might construct
890 its state differently from the way it was constructed the last time). */
892 rescan_packets(capture_file *cf, const char *action, gboolean refilter,
898 guint32 progbar_quantum;
899 guint32 progbar_nextstep;
902 frame_data *selected_frame;
906 /* Which frame, if any, is the currently selected frame?
907 XXX - should the selected frame or the focus frame be the "current"
908 frame, that frame being the one from which "Find Frame" searches
910 selected_frame = cf->current_frame;
912 /* We don't yet know what row that frame will be on, if any, after we
913 rebuild the clist, however. */
917 /* We need to re-initialize all the state information that protocols
918 keep, because some preference that controls a dissector has changed,
919 which might cause the state information to be constructed differently
920 by that dissector. */
922 /* Initialize all data structures used for dissection. */
926 /* Freeze the packet list while we redo it, so we don't get any
927 screen updates while it happens. */
928 gtk_clist_freeze(GTK_CLIST(packet_list));
931 gtk_clist_clear(GTK_CLIST(packet_list));
933 /* We don't yet know which will be the first and last frames displayed. */
934 cf->first_displayed = NULL;
935 cf->last_displayed = NULL;
937 /* Iterate through the list of frames. Call a routine for each frame
938 to check whether it should be displayed and, if so, add it to
945 /* Update the progress bar when it gets to this value. */
946 progbar_nextstep = 0;
947 /* When we reach the value that triggers a progress bar update,
948 bump that value by this amount. */
949 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
950 /* Count of packets at which we've looked. */
954 progbar = create_progress_dlg(action, "Stop", &stop_flag);
956 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
957 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
958 when we update it, we have to run the GTK+ main loop to get it
959 to repaint what's pending, and doing so may involve an "ioctl()"
960 to see if there's any pending input from an X server, and doing
961 that for every packet can be costly, especially on a big file. */
962 if (count >= progbar_nextstep) {
963 /* let's not divide by zero. I should never be started
964 * with count == 0, so let's assert that
966 g_assert(cf->count > 0);
968 update_progress_dlg(progbar, (gfloat) count / cf->count);
970 progbar_nextstep += progbar_quantum;
974 /* Well, the user decided to abort the filtering. Just stop.
976 XXX - go back to the previous filter? Users probably just
977 want not to wait for a filtering operation to finish;
978 unless we cancel by having no filter, reverting to the
979 previous filter will probably be even more expensive than
980 continuing the filtering, as it involves going back to the
981 beginning and filtering, and even with no filter we currently
982 have to re-generate the entire clist, which is also expensive.
984 I'm not sure what Network Monitor does, but it doesn't appear
985 to give you an unfiltered display if you cancel. */
992 /* Since all state for the frame was destroyed, mark the frame
993 * as not visited, free the GSList referring to the state
994 * data (the per-frame data itself was freed by
995 * "init_dissection()"), and null out the GSList pointer. */
996 fdata->flags.visited = 0;
998 g_slist_free(fdata->pfd);
1001 free_data_sources(fdata); /* release data source list */
1004 /* XXX - do something with "err" */
1005 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1006 cf->pd, fdata->cap_len, &err);
1008 row = add_packet_to_packet_list(fdata, cf, &cf->pseudo_header, cf->pd,
1010 if (fdata == selected_frame)
1015 /* Clear out what remains of the visited flags and per-frame data
1018 XXX - that may cause various forms of bogosity when dissecting
1019 these frames, as they won't have been seen by this sequential
1020 pass, but the only alternative I see is to keep scanning them
1021 even though the user requested that the scan stop, and that
1022 would leave the user stuck with an Ethereal grinding on
1023 until it finishes. Should we just stick them with that? */
1024 for (; fdata != NULL; fdata = fdata->next) {
1025 fdata->flags.visited = 0;
1027 g_slist_free(fdata->pfd);
1030 free_data_sources(fdata); /* release data source list */
1034 /* We're done filtering the packets; destroy the progress bar. */
1035 destroy_progress_dlg(progbar);
1037 /* Unfreeze the packet list. */
1038 gtk_clist_thaw(GTK_CLIST(packet_list));
1040 if (selected_row != -1) {
1041 /* The frame that was selected passed the filter; select it, make it
1042 the focus row, and make it visible. */
1043 set_selected_row(selected_row);
1044 finfo_selected = NULL;
1046 /* The selected frame didn't pass the filter; make the first frame
1047 the current frame, and leave it unselected. */
1048 unselect_packet(cf);
1049 cf->current_frame = cf->first_displayed;
1054 print_packets(capture_file *cf, print_args_t *print_args)
1060 guint32 progbar_quantum;
1061 guint32 progbar_nextstep;
1064 gint *col_widths = NULL;
1066 gboolean print_separator;
1067 char *line_buf = NULL;
1068 int line_buf_len = 256;
1072 epan_dissect_t *edt = NULL;
1074 cf->print_fh = open_print_dest(print_args->to_file, print_args->dest);
1075 if (cf->print_fh == NULL)
1076 return FALSE; /* attempt to open destination failed */
1078 print_preamble(cf->print_fh, print_args->format);
1080 if (print_args->print_summary) {
1081 /* We're printing packet summaries. Allocate the line buffer at
1082 its initial length. */
1083 line_buf = g_malloc(line_buf_len + 1);
1085 /* Find the widths for each of the columns - maximum of the
1086 width of the title and the width of the data - and print
1087 the column titles. */
1088 col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1091 for (i = 0; i < cf->cinfo.num_cols; i++) {
1092 /* Don't pad the last column. */
1093 if (i == cf->cinfo.num_cols - 1)
1096 col_widths[i] = strlen(cf->cinfo.col_title[i]);
1097 data_width = get_column_char_width(get_column_format(i));
1098 if (data_width > col_widths[i])
1099 col_widths[i] = data_width;
1102 /* Find the length of the string for this column. */
1103 column_len = strlen(cf->cinfo.col_title[i]);
1104 if (col_widths[i] > column_len)
1105 column_len = col_widths[i];
1107 /* Make sure there's room in the line buffer for the column; if not,
1108 double its length. */
1109 line_len += column_len + 1; /* "+1" for space or \n */
1110 if (line_len > line_buf_len) {
1112 line_buf = g_realloc(line_buf, line_buf_len + 1);
1115 /* Right-justify the packet number column. */
1116 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1117 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_title[i]);
1119 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_title[i]);
1121 if (i == cf->cinfo.num_cols - 1)
1127 print_line(cf->print_fh, print_args->format, line_buf);
1130 print_separator = FALSE;
1132 /* Update the progress bar when it gets to this value. */
1133 progbar_nextstep = 0;
1134 /* When we reach the value that triggers a progress bar update,
1135 bump that value by this amount. */
1136 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1137 /* Count of packets at which we've looked. */
1141 progbar = create_progress_dlg("Printing", "Stop", &stop_flag);
1143 /* Iterate through the list of packets, printing the packets that
1144 were selected by the current display filter. */
1145 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1146 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1147 when we update it, we have to run the GTK+ main loop to get it
1148 to repaint what's pending, and doing so may involve an "ioctl()"
1149 to see if there's any pending input from an X server, and doing
1150 that for every packet can be costly, especially on a big file. */
1151 if (count >= progbar_nextstep) {
1152 /* let's not divide by zero. I should never be started
1153 * with count == 0, so let's assert that
1155 g_assert(cf->count > 0);
1157 update_progress_dlg(progbar, (gfloat) count / cf->count);
1159 progbar_nextstep += progbar_quantum;
1163 /* Well, the user decided to abort the printing. Just stop.
1165 XXX - note that what got generated before they did that
1166 will get printed, as we're piping to a print program; we'd
1167 have to write to a file and then hand that to the print
1168 program to make it actually not print anything. */
1173 /* Check to see if we are suppressing unmarked packets, if so,
1174 * suppress them and then proceed to check for visibility.
1176 if (((print_args->suppress_unmarked && fdata->flags.marked ) ||
1177 !(print_args->suppress_unmarked)) && fdata->flags.passed_dfilter) {
1178 /* XXX - do something with "err" */
1179 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1180 cf->pd, fdata->cap_len, &err);
1181 if (print_args->print_summary) {
1182 /* Fill in the column information, but don't bother creating
1183 the logical protocol tree. */
1184 edt = epan_dissect_new(FALSE, FALSE);
1185 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
1186 epan_dissect_fill_in_columns(edt);
1189 for (i = 0; i < cf->cinfo.num_cols; i++) {
1190 /* Find the length of the string for this column. */
1191 column_len = strlen(cf->cinfo.col_data[i]);
1192 if (col_widths[i] > column_len)
1193 column_len = col_widths[i];
1195 /* Make sure there's room in the line buffer for the column; if not,
1196 double its length. */
1197 line_len += column_len + 1; /* "+1" for space or \n */
1198 if (line_len > line_buf_len) {
1200 line_buf = g_realloc(line_buf, line_buf_len + 1);
1203 /* Right-justify the packet number column. */
1204 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1205 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_data[i]);
1207 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_data[i]);
1209 if (i == cf->cinfo.num_cols - 1)
1215 print_line(cf->print_fh, print_args->format, line_buf);
1217 if (print_separator)
1218 print_line(cf->print_fh, print_args->format, "\n");
1220 /* Create the logical protocol tree, complete with the display
1221 representation of the items; we don't need the columns here,
1223 edt = epan_dissect_new(TRUE, TRUE);
1224 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1226 /* Print the information in that tree. */
1227 proto_tree_print(print_args, (GNode *)edt->tree,
1228 fdata, cf->print_fh);
1230 if (print_args->print_hex) {
1231 /* Print the full packet data as hex. */
1232 print_hex_data(cf->print_fh, print_args->format, fdata);
1235 /* Print a blank line if we print anything after this. */
1236 print_separator = TRUE;
1238 epan_dissect_free(edt);
1242 /* We're done printing the packets; destroy the progress bar. */
1243 destroy_progress_dlg(progbar);
1245 if (col_widths != NULL)
1247 if (line_buf != NULL)
1250 print_finale(cf->print_fh, print_args->format);
1252 close_print_dest(print_args->to_file, cf->print_fh);
1254 cf->print_fh = NULL;
1259 /* Scan through the packet list and change all columns that use the
1260 "command-line-specified" time stamp format to use the current
1261 value of that format. */
1263 change_time_formats(capture_file *cf)
1268 guint32 progbar_quantum;
1269 guint32 progbar_nextstep;
1275 /* Are there any columns with time stamps in the "command-line-specified"
1278 XXX - we have to force the "column is writable" flag on, as it
1279 might be off from the last frame that was dissected. */
1280 col_set_writable(&cf->cinfo, TRUE);
1281 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
1282 /* No, there aren't any columns in that format, so we have no work
1287 /* Freeze the packet list while we redo it, so we don't get any
1288 screen updates while it happens. */
1291 /* Update the progress bar when it gets to this value. */
1292 progbar_nextstep = 0;
1293 /* When we reach the value that triggers a progress bar update,
1294 bump that value by this amount. */
1295 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1296 /* Count of packets at which we've looked. */
1300 progbar = create_progress_dlg("Changing time display", "Stop", &stop_flag);
1302 /* Iterate through the list of packets, checking whether the packet
1303 is in a row of the summary list and, if so, whether there are
1304 any columns that show the time in the "command-line-specified"
1305 format and, if so, update that row. */
1306 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1307 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1308 when we update it, we have to run the GTK+ main loop to get it
1309 to repaint what's pending, and doing so may involve an "ioctl()"
1310 to see if there's any pending input from an X server, and doing
1311 that for every packet can be costly, especially on a big file. */
1312 if (count >= progbar_nextstep) {
1313 /* let's not divide by zero. I should never be started
1314 * with count == 0, so let's assert that
1316 g_assert(cf->count > 0);
1318 update_progress_dlg(progbar, (gfloat) count / cf->count);
1320 progbar_nextstep += progbar_quantum;
1324 /* Well, the user decided to abort the redisplay. Just stop.
1326 XXX - this leaves the time field in the old format in
1327 frames we haven't yet processed. So it goes; should we
1328 simply not offer them the option of stopping? */
1334 /* Find what row this packet is in. */
1335 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1338 /* This packet is in the summary list, on row "row". */
1340 for (i = 0; i < cf->cinfo.num_cols; i++) {
1341 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1342 /* This is one of the columns that shows the time in
1343 "command-line-specified" format; update it. */
1344 cf->cinfo.col_buf[i][0] = '\0';
1345 col_set_cls_time(fdata, &cf->cinfo, i);
1346 gtk_clist_set_text(GTK_CLIST(packet_list), row, i,
1347 cf->cinfo.col_data[i]);
1353 /* We're done redisplaying the packets; destroy the progress bar. */
1354 destroy_progress_dlg(progbar);
1356 /* Set the column widths of those columns that show the time in
1357 "command-line-specified" format. */
1358 pl_style = gtk_widget_get_style(packet_list);
1359 for (i = 0; i < cf->cinfo.num_cols; i++) {
1360 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1361 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1362 gdk_string_width(pl_style->font, get_column_longest_string(COL_CLS_TIME)));
1366 /* Unfreeze the packet list. */
1371 find_packet(capture_file *cf, dfilter_t *sfcode)
1373 frame_data *start_fd;
1375 frame_data *new_fd = NULL;
1378 guint32 progbar_quantum;
1379 guint32 progbar_nextstep;
1382 gboolean frame_matched;
1384 epan_dissect_t *edt;
1386 start_fd = cf->current_frame;
1387 if (start_fd != NULL) {
1388 /* Iterate through the list of packets, starting at the packet we've
1389 picked, calling a routine to run the filter on the packet, see if
1390 it matches, and stop if so. */
1394 /* Update the progress bar when it gets to this value. */
1395 progbar_nextstep = 0;
1396 /* When we reach the value that triggers a progress bar update,
1397 bump that value by this amount. */
1398 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1401 progbar = create_progress_dlg("Searching", "Cancel", &stop_flag);
1405 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1406 when we update it, we have to run the GTK+ main loop to get it
1407 to repaint what's pending, and doing so may involve an "ioctl()"
1408 to see if there's any pending input from an X server, and doing
1409 that for every packet can be costly, especially on a big file. */
1410 if (count >= progbar_nextstep) {
1411 /* let's not divide by zero. I should never be started
1412 * with count == 0, so let's assert that
1414 g_assert(cf->count > 0);
1416 update_progress_dlg(progbar, (gfloat) count / cf->count);
1418 progbar_nextstep += progbar_quantum;
1422 /* Well, the user decided to abort the search. Go back to the
1423 frame where we started. */
1428 /* Go past the current frame. */
1429 if (cf->sbackward) {
1430 /* Go on to the previous frame. */
1431 fdata = fdata->prev;
1433 fdata = cf->plist_end; /* wrap around */
1435 /* Go on to the next frame. */
1436 fdata = fdata->next;
1438 fdata = cf->plist; /* wrap around */
1443 /* Is this packet in the display? */
1444 if (fdata->flags.passed_dfilter) {
1445 /* Yes. Does it match the search filter? */
1446 /* XXX - do something with "err" */
1447 wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
1448 cf->pd, fdata->cap_len, &err);
1449 edt = epan_dissect_new(TRUE, FALSE);
1450 epan_dissect_prime_dfilter(edt, sfcode);
1451 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1452 frame_matched = dfilter_apply_edt(sfcode, edt);
1453 epan_dissect_free(edt);
1454 if (frame_matched) {
1456 break; /* found it! */
1460 if (fdata == start_fd) {
1461 /* We're back to the frame we were on originally, and that frame
1462 doesn't match the search filter. The search failed. */
1467 /* We're done scanning the packets; destroy the progress bar. */
1468 destroy_progress_dlg(progbar);
1471 if (new_fd != NULL) {
1472 /* We found a frame. Find what row it's in. */
1473 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), new_fd);
1474 g_assert(row != -1);
1476 /* Select that row, make it the focus row, and make it visible. */
1477 set_selected_row(row);
1478 return TRUE; /* success */
1480 return FALSE; /* failure */
1484 goto_frame(capture_file *cf, guint fnumber)
1489 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
1493 return NO_SUCH_FRAME; /* we didn't find that frame */
1494 if (!fdata->flags.passed_dfilter)
1495 return FRAME_NOT_DISPLAYED; /* the frame with that number isn't displayed */
1497 /* We found that frame, and it's currently being displayed.
1498 Find what row it's in. */
1499 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1500 g_assert(row != -1);
1502 /* Select that row, make it the focus row, and make it visible. */
1503 set_selected_row(row);
1507 /* Select the packet on a given row. */
1509 select_packet(capture_file *cf, int row)
1514 /* Get the frame data struct pointer for this frame */
1515 fdata = (frame_data *) gtk_clist_get_row_data(GTK_CLIST(packet_list), row);
1517 if (fdata == NULL) {
1518 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
1519 the first entry is added to it by "real_insert_row()", that row
1520 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
1521 our version and the vanilla GTK+ version).
1523 This means that a "select-row" signal is emitted; this causes
1524 "packet_list_select_cb()" to be called, which causes "select_packet()"
1527 "select_packet()" fetches, above, the data associated with the
1528 row that was selected; however, as "gtk_clist_append()", which
1529 called "real_insert_row()", hasn't yet returned, we haven't yet
1530 associated any data with that row, so we get back a null pointer.
1532 We can't assume that there's only one frame in the frame list,
1533 either, as we may be filtering the display.
1535 We therefore assume that, if "row" is 0, i.e. the first row
1536 is being selected, and "cf->first_displayed" equals
1537 "cf->last_displayed", i.e. there's only one frame being
1538 displayed, that frame is the frame we want.
1540 This means we have to set "cf->first_displayed" and
1541 "cf->last_displayed" before adding the row to the
1542 GtkCList; see the comment in "add_packet_to_packet_list()". */
1544 if (row == 0 && cf->first_displayed == cf->last_displayed)
1545 fdata = cf->first_displayed;
1548 /* Record that this frame is the current frame. */
1549 cf->current_frame = fdata;
1551 /* Get the data in that frame. */
1552 /* XXX - do something with "err" */
1553 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1554 cf->pd, fdata->cap_len, &err);
1556 /* Create the logical protocol tree. */
1557 if (cf->edt != NULL) {
1558 epan_dissect_free(cf->edt);
1561 /* We don't need the columns here. */
1562 cf->edt = epan_dissect_new(TRUE, TRUE);
1563 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
1566 /* Display the GUI protocol tree and hex dump.
1567 XXX - why do we dump core if we call "proto_tree_draw()"
1568 before calling "add_byte_views()"? */
1569 add_byte_views(cf->current_frame, cf->edt->tree, tree_view,
1571 proto_tree_draw(cf->edt->tree, tree_view);
1573 /* A packet is selected. */
1574 set_menus_for_selected_packet(TRUE);
1577 /* Unselect the selected packet, if any. */
1579 unselect_packet(capture_file *cf)
1581 /* Destroy the epan_dissect_t for the unselected packet. */
1582 if (cf->edt != NULL) {
1583 epan_dissect_free(cf->edt);
1587 /* Clear out the display of that packet. */
1588 clear_tree_and_hex_views();
1590 /* No packet is selected. */
1591 set_menus_for_selected_packet(FALSE);
1593 /* No protocol tree means no selected field. */
1597 /* Set the selected row and the focus row of the packet list to the specified
1598 row, and make it visible if it's not currently visible. */
1600 set_selected_row(int row)
1602 if (gtk_clist_row_is_visible(GTK_CLIST(packet_list), row) != GTK_VISIBILITY_FULL)
1603 gtk_clist_moveto(GTK_CLIST(packet_list), row, -1, 0.0, 0.0);
1605 /* XXX - why is there no "gtk_clist_set_focus_row()", so that we
1606 can make the row for the frame we found the focus row?
1610 http://www.gnome.org/mailing-lists/archives/gtk-list/2000-January/0038.shtml
1613 GTK_CLIST(packet_list)->focus_row = row;
1615 gtk_clist_select_row(GTK_CLIST(packet_list), row, -1);
1618 /* Unset the selected protocol tree field, if any. */
1620 unselect_field(void)
1622 statusbar_pop_field_msg();
1623 finfo_selected = NULL;
1624 set_menus_for_selected_tree_row(FALSE);
1628 * Mark a particular frame.
1631 mark_frame(capture_file *cf, frame_data *frame)
1633 frame->flags.marked = TRUE;
1638 * Unmark a particular frame.
1641 unmark_frame(capture_file *cf, frame_data *frame)
1643 frame->flags.marked = FALSE;
1648 freeze_clist(capture_file *cf)
1652 /* Make the column sizes static, so they don't adjust while
1653 we're reading the capture file (freezing the clist doesn't
1654 seem to suffice). */
1655 for (i = 0; i < cf->cinfo.num_cols; i++)
1656 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
1657 gtk_clist_freeze(GTK_CLIST(packet_list));
1661 thaw_clist(capture_file *cf)
1665 for (i = 0; i < cf->cinfo.num_cols; i++) {
1666 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_MANUAL) {
1667 /* Set this column's width to the appropriate value. */
1668 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1669 cf->cinfo.col_width[i]);
1671 /* Make this column's size dynamic, so that it adjusts to the
1672 appropriate size. */
1673 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
1676 gtk_clist_thaw(GTK_CLIST(packet_list));
1678 /* Hopefully, the columns have now gotten their appropriate sizes;
1679 make them resizeable - a column that auto-resizes cannot be
1680 resized by the user, and *vice versa*. */
1681 for (i = 0; i < cf->cinfo.num_cols; i++)
1682 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
1686 save_cap_file(char *fname, capture_file *cf, gboolean save_filtered, gboolean save_marked,
1689 gchar *from_filename;
1690 gchar *name_ptr, *save_msg, *save_fmt = " Saving: %s...";
1696 struct wtap_pkthdr hdr;
1697 union wtap_pseudo_header pseudo_header;
1700 name_ptr = get_basename(fname);
1701 msg_len = strlen(name_ptr) + strlen(save_fmt) + 2;
1702 save_msg = g_malloc(msg_len);
1703 snprintf(save_msg, msg_len, save_fmt, name_ptr);
1704 statusbar_push_file_msg(save_msg);
1707 if (!save_filtered && !save_marked && save_format == cf->cd_t) {
1708 /* We're not filtering packets, and we're saving it in the format
1709 it's already in, so we can just move or copy the raw data. */
1711 /* In this branch, we set "err" only if we get an error, so we
1712 must first clear it. */
1714 if (cf->is_tempfile) {
1715 /* The file being saved is a temporary file from a live
1716 capture, so it doesn't need to stay around under that name;
1717 first, try renaming the capture buffer file to the new name. */
1719 if (rename(cf->filename, fname) == 0) {
1720 /* That succeeded - there's no need to copy the source file. */
1721 from_filename = NULL;
1724 if (errno == EXDEV) {
1725 /* They're on different file systems, so we have to copy the
1728 from_filename = cf->filename;
1730 /* The rename failed, but not because they're on different
1731 file systems - put up an error message. (Or should we
1732 just punt and try to copy? The only reason why I'd
1733 expect the rename to fail and the copy to succeed would
1734 be if we didn't have permission to remove the file from
1735 the temporary directory, and that might be fixable - but
1736 is it worth requiring the user to go off and fix it?) */
1738 simple_dialog(ESD_TYPE_CRIT, NULL,
1739 file_rename_error_message(err), fname);
1745 from_filename = cf->filename;
1748 /* It's a permanent file, so we should copy it, and not remove the
1751 from_filename = cf->filename;
1753 /* Copy the file, if we haven't moved it. */
1755 if (!copy_binary_file(from_filename, fname)) {
1760 /* Either we're filtering packets, or we're saving in a different
1761 format; we can't do that by copying or moving the capture file,
1762 we have to do it by writing the packets out in Wiretap. */
1763 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap, &err);
1765 simple_dialog(ESD_TYPE_CRIT, NULL,
1766 file_open_error_message(err, TRUE), fname);
1770 /* XXX - have a way to save only the packets currently selected by
1771 the display filter or the marked ones.
1773 If we do that, should we make that file the current file? If so,
1774 it means we can no longer get at the other packets. What does
1776 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1777 /* XXX - do a progress bar */
1778 if ((!save_filtered && !save_marked) ||
1779 (save_filtered && fdata->flags.passed_dfilter && !save_marked) ||
1780 (save_marked && fdata->flags.marked && !save_filtered) ||
1781 (save_filtered && save_marked && fdata->flags.passed_dfilter &&
1782 fdata->flags.marked)) {
1784 - we're saving all frames, or
1785 - we're saving filtered frames and this one passed the display filter or
1786 - we're saving marked frames (and it has been marked) or
1787 - we're saving filtered _and_ marked frames,
1789 hdr.ts.tv_sec = fdata->abs_secs;
1790 hdr.ts.tv_usec = fdata->abs_usecs;
1791 hdr.caplen = fdata->cap_len;
1792 hdr.len = fdata->pkt_len;
1793 hdr.pkt_encap = fdata->lnk_t;
1794 if (!wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1795 pd, fdata->cap_len, &err)) {
1796 simple_dialog(ESD_TYPE_CRIT, NULL,
1797 file_read_error_message(err), cf->filename);
1798 wtap_dump_close(pdh, &err);
1802 if (!wtap_dump(pdh, &hdr, &pseudo_header, pd, &err)) {
1803 simple_dialog(ESD_TYPE_CRIT, NULL,
1804 file_write_error_message(err), fname);
1805 wtap_dump_close(pdh, &err);
1811 if (!wtap_dump_close(pdh, &err)) {
1812 simple_dialog(ESD_TYPE_WARN, NULL,
1813 file_close_error_message(err), fname);
1820 /* Pop the "Saving:" message off the status bar. */
1821 statusbar_pop_file_msg();
1823 if (!save_filtered && !save_marked) {
1824 /* We saved the entire capture, not just some packets from it.
1825 Open and read the file we saved it to.
1827 XXX - this is somewhat of a waste; we already have the
1828 packets, all this gets us is updated file type information
1829 (which we could just stuff into "cf"), and having the new
1830 file be the one we have opened and from which we're reading
1831 the data, and it means we have to spend time opening and
1832 reading the file, which could be a significant amount of
1833 time if the file is large. */
1834 cf->user_saved = TRUE;
1836 if ((err = open_cap_file(fname, FALSE, cf)) == 0) {
1837 /* XXX - report errors if this fails? */
1838 switch (read_cap_file(cf, &err)) {
1842 /* Just because we got an error, that doesn't mean we were unable
1843 to read any of the file; we handle what we could get from the
1848 /* The user bailed out of re-reading the capture file; the
1849 capture file has been closed - just return (without
1850 changing any menu settings; "close_cap_file()" set them
1851 correctly for the "no capture file open" state). */
1854 set_menus_for_unsaved_capture_file(FALSE);
1862 file_open_error_message(int err, gboolean for_writing)
1865 static char errmsg_errno[1024+1];
1869 case WTAP_ERR_NOT_REGULAR_FILE:
1870 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
1873 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
1874 case WTAP_ERR_UNSUPPORTED:
1875 /* Seen only when opening a capture file for reading. */
1876 errmsg = "The file \"%s\" is not a capture file in a format Ethereal understands.";
1879 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
1880 /* Seen only when opening a capture file for writing. */
1881 errmsg = "Ethereal does not support writing capture files in that format.";
1884 case WTAP_ERR_UNSUPPORTED_ENCAP:
1885 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
1887 errmsg = "Ethereal cannot save this capture in that format.";
1889 errmsg = "The file \"%s\" is a capture for a network type that Ethereal doesn't support.";
1892 case WTAP_ERR_BAD_RECORD:
1893 errmsg = "The file \"%s\" appears to be damaged or corrupt.";
1896 case WTAP_ERR_CANT_OPEN:
1898 errmsg = "The file \"%s\" could not be created for some unknown reason.";
1900 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
1903 case WTAP_ERR_SHORT_READ:
1904 errmsg = "The file \"%s\" appears to have been cut short"
1905 " in the middle of a packet or other data.";
1908 case WTAP_ERR_SHORT_WRITE:
1909 errmsg = "A full header couldn't be written to the file \"%s\".";
1914 errmsg = "The path to the file \"%s\" does not exist.";
1916 errmsg = "The file \"%s\" does not exist.";
1921 errmsg = "You do not have permission to create or write to the file \"%s\".";
1923 errmsg = "You do not have permission to read the file \"%s\".";
1927 errmsg = "\"%s\" is a directory (folder), not a file.";
1931 snprintf(errmsg_errno, sizeof(errmsg_errno),
1932 "The file \"%%s\" could not be opened: %s.",
1933 wtap_strerror(err));
1934 errmsg = errmsg_errno;
1941 file_rename_error_message(int err)
1944 static char errmsg_errno[1024+1];
1949 errmsg = "The path to the file \"%s\" does not exist.";
1953 errmsg = "You do not have permission to move the capture file to \"%s\".";
1957 snprintf(errmsg_errno, sizeof(errmsg_errno),
1958 "The file \"%%s\" could not be moved: %s.",
1959 wtap_strerror(err));
1960 errmsg = errmsg_errno;
1967 file_read_error_message(int err)
1969 static char errmsg_errno[1024+1];
1971 snprintf(errmsg_errno, sizeof(errmsg_errno),
1972 "An error occurred while reading from the file \"%%s\": %s.",
1973 wtap_strerror(err));
1974 return errmsg_errno;
1978 file_write_error_message(int err)
1981 static char errmsg_errno[1024+1];
1986 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
1991 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
1996 snprintf(errmsg_errno, sizeof(errmsg_errno),
1997 "An error occurred while writing to the file \"%%s\": %s.",
1998 wtap_strerror(err));
1999 errmsg = errmsg_errno;
2005 /* Check for write errors - if the file is being written to an NFS server,
2006 a write error may not show up until the file is closed, as NFS clients
2007 might not send writes to the server until the "write()" call finishes,
2008 so that the write may fail on the server but the "write()" may succeed. */
2010 file_close_error_message(int err)
2013 static char errmsg_errno[1024+1];
2017 case WTAP_ERR_CANT_CLOSE:
2018 errmsg = "The file \"%s\" couldn't be closed for some unknown reason.";
2021 case WTAP_ERR_SHORT_WRITE:
2022 errmsg = "Not all the packets could be written to the file \"%s\".";
2026 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
2031 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2036 snprintf(errmsg_errno, sizeof(errmsg_errno),
2037 "An error occurred while closing the file \"%%s\": %s.",
2038 wtap_strerror(err));
2039 errmsg = errmsg_errno;
2046 /* Copies a file in binary mode, for those operating systems that care about
2048 * Returns TRUE on success, FALSE on failure. If a failure, it also
2049 * displays a simple dialog window with the error message.
2052 copy_binary_file(char *from_filename, char *to_filename)
2054 int from_fd, to_fd, nread, nwritten, err;
2055 guint8 pd[65536]; /* XXX - Hmm, 64K here, 64K in save_cap_file(),
2056 perhaps we should make just one 64K buffer. */
2058 /* Copy the raw bytes of the file. */
2059 from_fd = open(from_filename, O_RDONLY | O_BINARY);
2062 simple_dialog(ESD_TYPE_CRIT, NULL,
2063 file_open_error_message(err, TRUE), from_filename);
2067 /* Use open() instead of creat() so that we can pass the O_BINARY
2068 flag, which is relevant on Win32; it appears that "creat()"
2069 may open the file in text mode, not binary mode, but we want
2070 to copy the raw bytes of the file, so we need the output file
2071 to be open in binary mode. */
2072 to_fd = open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
2075 simple_dialog(ESD_TYPE_CRIT, NULL,
2076 file_open_error_message(err, TRUE), to_filename);
2081 while ((nread = read(from_fd, pd, sizeof pd)) > 0) {
2082 nwritten = write(to_fd, pd, nread);
2083 if (nwritten < nread) {
2087 err = WTAP_ERR_SHORT_WRITE;
2088 simple_dialog(ESD_TYPE_CRIT, NULL,
2089 file_write_error_message(err), to_filename);
2097 simple_dialog(ESD_TYPE_CRIT, NULL,
2098 file_read_error_message(err), from_filename);
2104 if (close(to_fd) < 0) {
2106 simple_dialog(ESD_TYPE_CRIT, NULL,
2107 file_close_error_message(err), to_filename);