4 * $Id: file.c,v 1.261 2002/02/18 01:08:35 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>
92 #include "reassemble.h"
94 #include "gtk/colors.h"
95 #include <epan/epan_dissect.h>
97 extern GtkWidget *packet_list, *byte_nb_ptr, *tree_view;
100 gboolean auto_scroll_live;
103 static guint32 firstsec, firstusec;
104 static guint32 prevsec, prevusec;
106 static void read_packet(capture_file *cf, long offset);
108 static void rescan_packets(capture_file *cf, const char *action,
109 gboolean refilter, gboolean redissect);
111 static void set_selected_row(int row);
113 static void freeze_clist(capture_file *cf);
114 static void thaw_clist(capture_file *cf);
116 static char *file_rename_error_message(int err);
117 static char *file_close_error_message(int err);
118 static gboolean copy_binary_file(char *from_filename, char *to_filename);
120 /* Update the progress bar this many times when reading a file. */
121 #define N_PROGBAR_UPDATES 100
123 /* Number of "frame_data" structures per memory chunk.
124 XXX - is this the right number? */
125 #define FRAME_DATA_CHUNK_SIZE 1024
128 open_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
135 wth = wtap_open_offline(fname, &err, TRUE);
139 /* Find the size of the file. */
141 if (fstat(fd, &cf_stat) < 0) {
147 /* The open succeeded. Close whatever capture file we had open,
148 and fill in the information for this file. */
151 /* Initialize the table of conversations. */
152 epan_conversation_init();
154 /* Initialize protocol-specific variables */
155 init_all_protocols();
157 /* Initialize the common data structures for fragment reassembly.
158 Must be done *after* "init_all_protocols()", as "init_all_protocols()"
159 may free up space for fragments, which it finds by using the
160 data structures that "reassemble_init()" frees. */
163 /* We're about to start reading the file. */
164 cf->state = FILE_READ_IN_PROGRESS;
168 cf->f_len = cf_stat.st_size;
170 /* Set the file name because we need it to set the follow stream filter.
171 XXX - is that still true? We need it for other reasons, though,
173 cf->filename = g_strdup(fname);
175 /* Indicate whether it's a permanent or temporary file. */
176 cf->is_tempfile = is_tempfile;
178 /* If it's a temporary capture buffer file, mark it as not saved. */
179 cf->user_saved = !is_tempfile;
181 cf->cd_t = wtap_file_type(cf->wth);
183 cf->marked_count = 0;
184 cf->drops_known = FALSE;
188 cf->snap = wtap_snapshot_length(cf->wth);
190 /* Snapshot length not known. */
191 cf->has_snap = FALSE;
192 cf->snap = WTAP_MAX_PACKET_SIZE;
195 cf->progbar_quantum = 0;
196 cf->progbar_nextstep = 0;
197 firstsec = 0, firstusec = 0;
198 prevsec = 0, prevusec = 0;
200 cf->plist_chunk = g_mem_chunk_new("frame_data_chunk",
202 FRAME_DATA_CHUNK_SIZE * sizeof(frame_data),
204 g_assert(cf->plist_chunk);
209 simple_dialog(ESD_TYPE_CRIT, NULL,
210 file_open_error_message(err, FALSE), fname);
214 /* Reset everything to a pristine state */
216 close_cap_file(capture_file *cf)
218 /* Die if we're in the middle of reading a file. */
219 g_assert(cf->state != FILE_READ_IN_PROGRESS);
221 /* Destroy all popup packet windows, as they refer to packets in the
222 capture file we're closing. */
223 destroy_packet_wins();
229 /* We have no file open... */
230 if (cf->filename != NULL) {
231 /* If it's a temporary file, remove it. */
233 unlink(cf->filename);
234 g_free(cf->filename);
237 /* ...which means we have nothing to save. */
238 cf->user_saved = FALSE;
240 if (cf->plist_chunk != NULL) {
241 g_mem_chunk_destroy(cf->plist_chunk);
242 cf->plist_chunk = NULL;
244 if (cf->rfcode != NULL) {
245 dfilter_free(cf->rfcode);
249 cf->plist_end = NULL;
250 unselect_packet(cf); /* nothing to select */
251 cf->first_displayed = NULL;
252 cf->last_displayed = NULL;
254 /* Clear the packet list. */
255 gtk_clist_freeze(GTK_CLIST(packet_list));
256 gtk_clist_clear(GTK_CLIST(packet_list));
257 gtk_clist_thaw(GTK_CLIST(packet_list));
259 /* Clear any file-related status bar messages.
260 XXX - should be "clear *ALL* file-related status bar messages;
261 will there ever be more than one on the stack? */
262 statusbar_pop_file_msg();
264 /* Restore the standard title bar message. */
265 set_main_window_name("The Ethereal Network Analyzer");
267 /* Disable all menu items that make sense only if you have a capture. */
268 set_menus_for_capture_file(FALSE);
269 set_menus_for_unsaved_capture_file(FALSE);
270 set_menus_for_captured_packets(FALSE);
271 set_menus_for_selected_packet(FALSE);
272 set_menus_for_capture_in_progress(FALSE);
273 set_menus_for_selected_tree_row(FALSE);
275 /* We have no file open. */
276 cf->state = FILE_CLOSED;
279 /* Set the file name in the status line, in the name for the main window,
280 and in the name for the main window's icon. */
282 set_display_filename(capture_file *cf)
286 static const gchar done_fmt_nodrops[] = " File: %s";
287 static const gchar done_fmt_drops[] = " File: %s Drops: %u";
289 gchar *win_name_fmt = "%s - Ethereal";
292 if (!cf->is_tempfile) {
293 /* Get the last component of the file name, and put that in the
295 name_ptr = get_basename(cf->filename);
297 /* The file we read is a temporary file from a live capture;
298 we don't mention its name in the status bar. */
299 name_ptr = "<capture>";
302 if (cf->drops_known) {
303 msg_len = strlen(name_ptr) + strlen(done_fmt_drops) + 64;
304 done_msg = g_malloc(msg_len);
305 snprintf(done_msg, msg_len, done_fmt_drops, name_ptr, cf->drops);
307 msg_len = strlen(name_ptr) + strlen(done_fmt_nodrops);
308 done_msg = g_malloc(msg_len);
309 snprintf(done_msg, msg_len, done_fmt_nodrops, name_ptr);
311 statusbar_push_file_msg(done_msg);
314 msg_len = strlen(name_ptr) + strlen(win_name_fmt) + 1;
315 win_name = g_malloc(msg_len);
316 snprintf(win_name, msg_len, win_name_fmt, name_ptr);
317 set_main_window_name(win_name);
322 read_cap_file(capture_file *cf, int *err)
324 gchar *name_ptr, *load_msg, *load_fmt = " Loading: %s...";
327 char errmsg_errno[1024+1];
328 gchar err_str[2048+1];
335 name_ptr = get_basename(cf->filename);
337 msg_len = strlen(name_ptr) + strlen(load_fmt) + 2;
338 load_msg = g_malloc(msg_len);
339 snprintf(load_msg, msg_len, load_fmt, name_ptr);
340 statusbar_push_file_msg(load_msg);
342 /* Update the progress bar when it gets to this value. */
343 cf->progbar_nextstep = 0;
344 /* When we reach the value that triggers a progress bar update,
345 bump that value by this amount. */
346 cf->progbar_quantum = cf->f_len/N_PROGBAR_UPDATES;
355 progbar = create_progress_dlg(load_msg, "Stop", &stop_flag);
358 while ((wtap_read(cf->wth, err, &data_offset))) {
359 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
360 when we update it, we have to run the GTK+ main loop to get it
361 to repaint what's pending, and doing so may involve an "ioctl()"
362 to see if there's any pending input from an X server, and doing
363 that for every packet can be costly, especially on a big file. */
364 if (data_offset >= cf->progbar_nextstep) {
365 file_pos = lseek(cf->filed, 0, SEEK_CUR);
366 prog_val = (gfloat) file_pos / (gfloat) cf->f_len;
367 update_progress_dlg(progbar, prog_val);
368 cf->progbar_nextstep += cf->progbar_quantum;
372 /* Well, the user decided to abort the read. Destroy the progress
373 bar, close the capture file, and return READ_ABORTED so our caller
374 can do whatever is appropriate when that happens. */
375 destroy_progress_dlg(progbar);
376 cf->state = FILE_READ_ABORTED; /* so that we're allowed to close it */
377 gtk_clist_thaw(GTK_CLIST(packet_list)); /* undo our freeze */
379 return (READ_ABORTED);
381 read_packet(cf, data_offset);
384 /* We're done reading the file; destroy the progress bar. */
385 destroy_progress_dlg(progbar);
387 /* We're done reading sequentially through the file. */
388 cf->state = FILE_READ_DONE;
390 /* Close the sequential I/O side, to free up memory it requires. */
391 wtap_sequential_close(cf->wth);
393 /* Allow the protocol dissectors to free up memory that they
394 * don't need after the sequential run-through of the packets. */
395 postseq_cleanup_all_protocols();
397 /* Set the file encapsulation type now; we don't know what it is until
398 we've looked at all the packets, as we don't know until then whether
399 there's more than one type (and thus whether it's
400 WTAP_ENCAP_PER_PACKET). */
401 cf->lnk_t = wtap_file_encap(cf->wth);
403 cf->current_frame = cf->first_displayed;
406 statusbar_pop_file_msg();
407 set_display_filename(cf);
409 /* Enable menu items that make sense if you have a capture file you've
411 set_menus_for_capture_file(TRUE);
412 set_menus_for_unsaved_capture_file(!cf->user_saved);
414 /* Enable menu items that make sense if you have some captured packets. */
415 set_menus_for_captured_packets(TRUE);
417 /* If we have any displayed packets to select, select the first of those
418 packets by making the first row the selected row. */
419 if (cf->first_displayed != NULL)
420 gtk_signal_emit_by_name(GTK_OBJECT(packet_list), "select_row", 0);
423 /* Put up a message box noting that the read failed somewhere along
424 the line. Don't throw out the stuff we managed to read, though,
428 case WTAP_ERR_UNSUPPORTED_ENCAP:
429 errmsg = "The capture file is for a network type that Ethereal doesn't support.";
432 case WTAP_ERR_CANT_READ:
433 errmsg = "An attempt to read from the file failed for"
434 " some unknown reason.";
437 case WTAP_ERR_SHORT_READ:
438 errmsg = "The capture file appears to have been cut short"
439 " in the middle of a packet.";
442 case WTAP_ERR_BAD_RECORD:
443 errmsg = "The capture file appears to be damaged or corrupt.";
447 snprintf(errmsg_errno, sizeof(errmsg_errno),
448 "An error occurred while reading the"
449 " capture file: %s.", wtap_strerror(*err));
450 errmsg = errmsg_errno;
453 snprintf(err_str, sizeof err_str, errmsg);
454 simple_dialog(ESD_TYPE_CRIT, NULL, err_str);
457 return (READ_SUCCESS);
462 start_tail_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
467 err = open_cap_file(fname, is_tempfile, cf);
469 /* Disable menu items that make no sense if you're currently running
471 set_menus_for_capture_in_progress(TRUE);
473 /* Enable menu items that make sense if you have some captured
474 packets (yes, I know, we don't have any *yet*). */
475 set_menus_for_captured_packets(TRUE);
477 for (i = 0; i < cf->cinfo.num_cols; i++) {
478 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_LIVE)
479 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
481 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
482 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
483 cf->cinfo.col_width[i]);
484 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
488 statusbar_push_file_msg(" <live capture in progress>");
494 continue_tail_cap_file(capture_file *cf, int to_read, int *err)
496 long data_offset = 0;
498 gtk_clist_freeze(GTK_CLIST(packet_list));
500 while (to_read != 0 && (wtap_read(cf->wth, err, &data_offset))) {
501 if (cf->state == FILE_READ_ABORTED) {
502 /* Well, the user decided to exit Ethereal. Break out of the
503 loop, and let the code below (which is called even if there
504 aren't any packets left to read) exit. */
507 read_packet(cf, data_offset);
511 gtk_clist_thaw(GTK_CLIST(packet_list));
513 /* XXX - this cheats and looks inside the packet list to find the final
515 if (auto_scroll_live && cf->plist_end != NULL)
516 gtk_clist_moveto(GTK_CLIST(packet_list),
517 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
519 if (cf->state == FILE_READ_ABORTED) {
520 /* Well, the user decided to exit Ethereal. Return READ_ABORTED
521 so that our caller can kill off the capture child process;
522 this will cause an EOF on the pipe from the child, so
523 "finish_tail_cap_file()" will be called, and it will clean up
526 } else if (*err != 0) {
527 /* We got an error reading the capture file.
528 XXX - pop up a dialog box? */
531 return (READ_SUCCESS);
535 finish_tail_cap_file(capture_file *cf, int *err)
539 gtk_clist_freeze(GTK_CLIST(packet_list));
541 while ((wtap_read(cf->wth, err, &data_offset))) {
542 if (cf->state == FILE_READ_ABORTED) {
543 /* Well, the user decided to abort the read. Break out of the
544 loop, and let the code below (which is called even if there
545 aren't any packets left to read) exit. */
548 read_packet(cf, data_offset);
551 if (cf->state == FILE_READ_ABORTED) {
552 /* Well, the user decided to abort the read. We're only called
553 when the child capture process closes the pipe to us (meaning
554 it's probably exited), so we can just close the capture
555 file; we return READ_ABORTED so our caller can do whatever
556 is appropriate when that happens. */
562 if (auto_scroll_live && cf->plist_end != NULL)
563 /* XXX - this cheats and looks inside the packet list to find the final
565 gtk_clist_moveto(GTK_CLIST(packet_list),
566 GTK_CLIST(packet_list)->rows - 1, -1, 1.0, 1.0);
568 /* We're done reading sequentially through the file. */
569 cf->state = FILE_READ_DONE;
571 /* We're done reading sequentially through the file; close the
572 sequential I/O side, to free up memory it requires. */
573 wtap_sequential_close(cf->wth);
575 /* Allow the protocol dissectors to free up memory that they
576 * don't need after the sequential run-through of the packets. */
577 postseq_cleanup_all_protocols();
579 /* Set the file encapsulation type now; we don't know what it is until
580 we've looked at all the packets, as we don't know until then whether
581 there's more than one type (and thus whether it's
582 WTAP_ENCAP_PER_PACKET). */
583 cf->lnk_t = wtap_file_encap(cf->wth);
585 /* Pop the "<live capture in progress>" message off the status bar. */
586 statusbar_pop_file_msg();
588 set_display_filename(cf);
590 /* Enable menu items that make sense if you're not currently running
592 set_menus_for_capture_in_progress(FALSE);
594 /* Enable menu items that make sense if you have a capture file
595 you've finished reading. */
596 set_menus_for_capture_file(TRUE);
597 set_menus_for_unsaved_capture_file(!cf->user_saved);
600 /* We got an error reading the capture file.
601 XXX - pop up a dialog box? */
604 return (READ_SUCCESS);
606 #endif /* HAVE_LIBPCAP */
609 color_filter_t *colorf;
611 } apply_color_filter_args;
614 * If no color filter has been applied, apply this one.
615 * (The "if no color filter has been applied" is to handle the case where
616 * more than one color filter matches the packet.)
619 apply_color_filter(gpointer filter_arg, gpointer argp)
621 color_filter_t *colorf = filter_arg;
622 apply_color_filter_args *args = argp;
624 if (colorf->c_colorfilter != NULL && args->colorf == NULL) {
625 if (dfilter_apply_edt(colorf->c_colorfilter, args->edt))
626 args->colorf = colorf;
631 add_packet_to_packet_list(frame_data *fdata, capture_file *cf,
632 union wtap_pseudo_header *pseudo_header, const u_char *buf,
635 apply_color_filter_args args;
637 gboolean create_proto_tree = FALSE;
641 /* We don't yet have a color filter to apply. */
644 /* If we don't have the time stamp of the first packet in the
645 capture, it's because this is the first packet. Save the time
646 stamp of this packet as the time stamp of the first packet. */
647 if (!firstsec && !firstusec) {
648 firstsec = fdata->abs_secs;
649 firstusec = fdata->abs_usecs;
654 we have a display filter and are re-applying it;
656 we have a list of color filters;
658 allocate a protocol tree root node, so that we'll construct
659 a protocol tree against which a filter expression can be
661 if ((cf->dfcode != NULL && refilter) || filter_list != NULL)
662 create_proto_tree = TRUE;
664 /* Dissect the frame. */
665 edt = epan_dissect_new(create_proto_tree, FALSE);
668 epan_dissect_prime_dfilter(edt, cf->dfcode);
671 filter_list_prime_edt(edt);
673 epan_dissect_run(edt, pseudo_header, buf, fdata, &cf->cinfo);
676 /* If we have a display filter, apply it if we're refiltering, otherwise
677 leave the "passed_dfilter" flag alone.
679 If we don't have a display filter, set "passed_dfilter" to 1. */
680 if (cf->dfcode != NULL) {
682 if (cf->dfcode != NULL)
683 fdata->flags.passed_dfilter = dfilter_apply_edt(cf->dfcode, edt) ? 1 : 0;
685 fdata->flags.passed_dfilter = 1;
688 fdata->flags.passed_dfilter = 1;
690 /* If we have color filters, and the frame is to be displayed, apply
691 the color filters. */
692 if (fdata->flags.passed_dfilter) {
693 if (filter_list != NULL) {
695 g_slist_foreach(filter_list, apply_color_filter, &args);
700 if (fdata->flags.passed_dfilter) {
701 /* This frame passed the display filter, so add it to the clist. */
703 /* If we don't have the time stamp of the previous displayed packet,
704 it's because this is the first displayed packet. Save the time
705 stamp of this packet as the time stamp of the previous displayed
707 if (!prevsec && !prevusec) {
708 prevsec = fdata->abs_secs;
709 prevusec = fdata->abs_usecs;
712 /* Get the time elapsed between the first packet and this packet. */
713 compute_timestamp_diff(&fdata->rel_secs, &fdata->rel_usecs,
714 fdata->abs_secs, fdata->abs_usecs, firstsec, firstusec);
716 /* If it's greater than the current elapsed time, set the elapsed time
717 to it (we check for "greater than" so as not to be confused by
718 time moving backwards). */
719 if ((gint32)cf->esec < fdata->rel_secs
720 || ((gint32)cf->esec == fdata->rel_secs && (gint32)cf->eusec < fdata->rel_usecs)) {
721 cf->esec = fdata->rel_secs;
722 cf->eusec = fdata->rel_usecs;
725 /* Get the time elapsed between the previous displayed packet and
727 compute_timestamp_diff(&fdata->del_secs, &fdata->del_usecs,
728 fdata->abs_secs, fdata->abs_usecs, prevsec, prevusec);
729 prevsec = fdata->abs_secs;
730 prevusec = fdata->abs_usecs;
732 epan_dissect_fill_in_columns(edt);
734 /* If we haven't yet seen the first frame, this is it.
736 XXX - we must do this before we add the row to the display,
737 as, if the display's GtkCList's selection mode is
738 GTK_SELECTION_BROWSE, when the first entry is added to it,
739 "select_packet()" will be called, and it will fetch the row
740 data for the 0th row, and will get a null pointer rather than
741 "fdata", as "gtk_clist_append()" won't yet have returned and
742 thus "gtk_clist_set_row_data()" won't yet have been called.
744 We thus need to leave behind bread crumbs so that
745 "select_packet()" can find this frame. See the comment
746 in "select_packet()". */
747 if (cf->first_displayed == NULL)
748 cf->first_displayed = fdata;
750 /* This is the last frame we've seen so far. */
751 cf->last_displayed = fdata;
753 row = gtk_clist_append(GTK_CLIST(packet_list), cf->cinfo.col_data);
754 gtk_clist_set_row_data(GTK_CLIST(packet_list), row, fdata);
756 if (fdata->flags.marked) {
757 color_t_to_gdkcolor(&bg, &prefs.gui_marked_bg);
758 color_t_to_gdkcolor(&fg, &prefs.gui_marked_fg);
759 } else if (filter_list != NULL && (args.colorf != NULL)) {
760 bg = args.colorf->bg_color;
761 fg = args.colorf->fg_color;
766 gtk_clist_set_background(GTK_CLIST(packet_list), row, &bg);
767 gtk_clist_set_foreground(GTK_CLIST(packet_list), row, &fg);
769 /* This frame didn't pass the display filter, so it's not being added
770 to the clist, and thus has no row. */
773 epan_dissect_free(edt);
778 read_packet(capture_file *cf, long offset)
780 const struct wtap_pkthdr *phdr = wtap_phdr(cf->wth);
781 union wtap_pseudo_header *pseudo_header = wtap_pseudoheader(cf->wth);
782 const u_char *buf = wtap_buf_ptr(cf->wth);
785 frame_data *plist_end;
788 /* Allocate the next list entry, and add it to the list. */
789 fdata = g_mem_chunk_alloc(cf->plist_chunk);
794 fdata->data_src = NULL;
795 fdata->pkt_len = phdr->len;
796 fdata->cap_len = phdr->caplen;
797 fdata->file_off = offset;
798 fdata->lnk_t = phdr->pkt_encap;
799 fdata->abs_secs = phdr->ts.tv_sec;
800 fdata->abs_usecs = phdr->ts.tv_usec;
801 fdata->flags.encoding = CHAR_ASCII;
802 fdata->flags.visited = 0;
803 fdata->flags.marked = 0;
807 edt = epan_dissect_new(TRUE, FALSE);
808 epan_dissect_prime_dfilter(edt, cf->rfcode);
809 epan_dissect_run(edt, pseudo_header, buf, fdata, NULL);
810 passed = dfilter_apply_edt(cf->rfcode, edt);
811 epan_dissect_free(edt);
814 plist_end = cf->plist_end;
815 fdata->prev = plist_end;
816 if (plist_end != NULL)
817 plist_end->next = fdata;
820 cf->plist_end = fdata;
823 fdata->num = cf->count;
824 add_packet_to_packet_list(fdata, cf, pseudo_header, buf, TRUE);
826 /* XXX - if we didn't have read filters, or if we could avoid
827 allocating the "frame_data" structure until we knew whether
828 the frame passed the read filter, we could use a G_ALLOC_ONLY
831 ...but, at least in one test I did, where I just made the chunk
832 a G_ALLOC_ONLY chunk and read in a huge capture file, it didn't
833 seem to save a noticeable amount of time or space. */
834 g_mem_chunk_free(cf->plist_chunk, fdata);
839 filter_packets(capture_file *cf, gchar *dftext)
843 if (dftext == NULL) {
844 /* The new filter is an empty filter (i.e., display all packets). */
848 * We have a filter; try to compile it.
850 if (!dfilter_compile(dftext, &dfcode)) {
851 /* The attempt failed; report an error. */
852 simple_dialog(ESD_TYPE_CRIT, NULL, dfilter_error_msg);
857 if (dfcode == NULL) {
858 /* Yes - free the filter text, and set it to null. */
864 /* We have a valid filter. Replace the current filter. */
865 if (cf->dfilter != NULL)
867 cf->dfilter = dftext;
868 if (cf->dfcode != NULL)
869 dfilter_free(cf->dfcode);
872 /* Now rescan the packet list, applying the new filter, but not
873 throwing away information constructed on a previous pass. */
874 rescan_packets(cf, "Filtering", TRUE, FALSE);
879 colorize_packets(capture_file *cf)
881 rescan_packets(cf, "Colorizing", FALSE, FALSE);
885 redissect_packets(capture_file *cf)
887 rescan_packets(cf, "Reprocessing", TRUE, TRUE);
890 /* Rescan the list of packets, reconstructing the CList.
892 "action" describes why we're doing this; it's used in the progress
895 "refilter" is TRUE if we need to re-evaluate the filter expression.
897 "redissect" is TRUE if we need to make the dissectors reconstruct
898 any state information they have (because a preference that affects
899 some dissector has changed, meaning some dissector might construct
900 its state differently from the way it was constructed the last time). */
902 rescan_packets(capture_file *cf, const char *action, gboolean refilter,
908 guint32 progbar_quantum;
909 guint32 progbar_nextstep;
911 frame_data *selected_frame;
915 /* Which frame, if any, is the currently selected frame?
916 XXX - should the selected frame or the focus frame be the "current"
917 frame, that frame being the one from which "Find Frame" searches
919 selected_frame = cf->current_frame;
921 /* We don't yet know what row that frame will be on, if any, after we
922 rebuild the clist, however. */
926 /* We need to re-initialize all the state information that protocols
927 keep, because some preference that controls a dissector has changed,
928 which might cause the state information to be constructed differently
929 by that dissector. */
931 /* Initialize the table of conversations. */
932 epan_conversation_init();
934 /* Initialize protocol-specific variables */
935 init_all_protocols();
937 /* Initialize the common data structures for fragment reassembly.
938 Must be done *after* "init_all_protocols()", as "init_all_protocols()"
939 may free up space for fragments, which it finds by using the
940 data structures that "reassemble_init()" frees. */
944 /* Freeze the packet list while we redo it, so we don't get any
945 screen updates while it happens. */
946 gtk_clist_freeze(GTK_CLIST(packet_list));
949 gtk_clist_clear(GTK_CLIST(packet_list));
951 /* We don't yet know which will be the first and last frames displayed. */
952 cf->first_displayed = NULL;
953 cf->last_displayed = NULL;
955 /* Iterate through the list of frames. Call a routine for each frame
956 to check whether it should be displayed and, if so, add it to
963 /* Update the progress bar when it gets to this value. */
964 progbar_nextstep = 0;
965 /* When we reach the value that triggers a progress bar update,
966 bump that value by this amount. */
967 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
968 /* Count of packets at which we've looked. */
972 progbar = create_progress_dlg(action, "Stop", &stop_flag);
974 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
975 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
976 when we update it, we have to run the GTK+ main loop to get it
977 to repaint what's pending, and doing so may involve an "ioctl()"
978 to see if there's any pending input from an X server, and doing
979 that for every packet can be costly, especially on a big file. */
980 if (count >= progbar_nextstep) {
981 /* let's not divide by zero. I should never be started
982 * with count == 0, so let's assert that
984 g_assert(cf->count > 0);
986 update_progress_dlg(progbar, (gfloat) count / cf->count);
988 progbar_nextstep += progbar_quantum;
992 /* Well, the user decided to abort the filtering. Just stop.
994 XXX - go back to the previous filter? Users probably just
995 want not to wait for a filtering operation to finish;
996 unless we cancel by having no filter, reverting to the
997 previous filter will probably be even more expensive than
998 continuing the filtering, as it involves going back to the
999 beginning and filtering, and even with no filter we currently
1000 have to re-generate the entire clist, which is also expensive.
1002 I'm not sure what Network Monitor does, but it doesn't appear
1003 to give you an unfiltered display if you cancel. */
1010 /* Since all state for the frame was destroyed, mark the frame
1011 * as not visited, free the GSList referring to the state
1012 * data (the per-frame data itself was freed by
1013 * "init_all_protocols()"), and null out the GSList pointer. */
1014 fdata->flags.visited = 0;
1016 g_slist_free(fdata->pfd);
1019 free_data_sources(fdata); /* release data source list */
1022 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1023 cf->pd, fdata->cap_len);
1025 row = add_packet_to_packet_list(fdata, cf, &cf->pseudo_header, cf->pd,
1027 if (fdata == selected_frame)
1032 /* Clear out what remains of the visited flags and per-frame data
1035 XXX - that may cause various forms of bogosity when dissecting
1036 these frames, as they won't have been seen by this sequential
1037 pass, but the only alternative I see is to keep scanning them
1038 even though the user requested that the scan stop, and that
1039 would leave the user stuck with an Ethereal grinding on
1040 until it finishes. Should we just stick them with that? */
1041 for (; fdata != NULL; fdata = fdata->next) {
1042 fdata->flags.visited = 0;
1044 g_slist_free(fdata->pfd);
1047 free_data_sources(fdata); /* release data source list */
1051 /* We're done filtering the packets; destroy the progress bar. */
1052 destroy_progress_dlg(progbar);
1054 /* Unfreeze the packet list. */
1055 gtk_clist_thaw(GTK_CLIST(packet_list));
1057 if (selected_row != -1) {
1058 /* The frame that was selected passed the filter; select it, make it
1059 the focus row, and make it visible. */
1060 set_selected_row(selected_row);
1061 finfo_selected = NULL;
1063 /* The selected frame didn't pass the filter; make the first frame
1064 the current frame, and leave it unselected. */
1065 unselect_packet(cf);
1066 cf->current_frame = cf->first_displayed;
1071 print_packets(capture_file *cf, print_args_t *print_args)
1077 guint32 progbar_quantum;
1078 guint32 progbar_nextstep;
1080 gint *col_widths = NULL;
1082 gboolean print_separator;
1083 char *line_buf = NULL;
1084 int line_buf_len = 256;
1088 epan_dissect_t *edt = NULL;
1090 cf->print_fh = open_print_dest(print_args->to_file, print_args->dest);
1091 if (cf->print_fh == NULL)
1092 return FALSE; /* attempt to open destination failed */
1094 print_preamble(cf->print_fh, print_args->format);
1096 if (print_args->print_summary) {
1097 /* We're printing packet summaries. Allocate the line buffer at
1098 its initial length. */
1099 line_buf = g_malloc(line_buf_len + 1);
1101 /* Find the widths for each of the columns - maximum of the
1102 width of the title and the width of the data - and print
1103 the column titles. */
1104 col_widths = (gint *) g_malloc(sizeof(gint) * cf->cinfo.num_cols);
1107 for (i = 0; i < cf->cinfo.num_cols; i++) {
1108 /* Don't pad the last column. */
1109 if (i == cf->cinfo.num_cols - 1)
1112 col_widths[i] = strlen(cf->cinfo.col_title[i]);
1113 data_width = get_column_char_width(get_column_format(i));
1114 if (data_width > col_widths[i])
1115 col_widths[i] = data_width;
1118 /* Find the length of the string for this column. */
1119 column_len = strlen(cf->cinfo.col_title[i]);
1120 if (col_widths[i] > column_len)
1121 column_len = col_widths[i];
1123 /* Make sure there's room in the line buffer for the column; if not,
1124 double its length. */
1125 line_len += column_len + 1; /* "+1" for space or \n */
1126 if (line_len > line_buf_len) {
1128 line_buf = g_realloc(line_buf, line_buf_len + 1);
1131 /* Right-justify the packet number column. */
1132 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1133 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_title[i]);
1135 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_title[i]);
1137 if (i == cf->cinfo.num_cols - 1)
1143 print_line(cf->print_fh, print_args->format, line_buf);
1146 print_separator = FALSE;
1148 /* Update the progress bar when it gets to this value. */
1149 progbar_nextstep = 0;
1150 /* When we reach the value that triggers a progress bar update,
1151 bump that value by this amount. */
1152 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1153 /* Count of packets at which we've looked. */
1157 progbar = create_progress_dlg("Printing", "Stop", &stop_flag);
1159 /* Iterate through the list of packets, printing the packets that
1160 were selected by the current display filter. */
1161 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1162 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1163 when we update it, we have to run the GTK+ main loop to get it
1164 to repaint what's pending, and doing so may involve an "ioctl()"
1165 to see if there's any pending input from an X server, and doing
1166 that for every packet can be costly, especially on a big file. */
1167 if (count >= progbar_nextstep) {
1168 /* let's not divide by zero. I should never be started
1169 * with count == 0, so let's assert that
1171 g_assert(cf->count > 0);
1173 update_progress_dlg(progbar, (gfloat) count / cf->count);
1175 progbar_nextstep += progbar_quantum;
1179 /* Well, the user decided to abort the printing. Just stop.
1181 XXX - note that what got generated before they did that
1182 will get printed, as we're piping to a print program; we'd
1183 have to write to a file and then hand that to the print
1184 program to make it actually not print anything. */
1189 /* Check to see if we are suppressing unmarked packets, if so,
1190 * suppress them and then proceed to check for visibility.
1192 if (((print_args->suppress_unmarked && fdata->flags.marked ) ||
1193 !(print_args->suppress_unmarked)) && fdata->flags.passed_dfilter) {
1194 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1195 cf->pd, fdata->cap_len);
1196 if (print_args->print_summary) {
1197 /* Fill in the column information, but don't bother creating
1198 the logical protocol tree. */
1199 edt = epan_dissect_new(FALSE, FALSE);
1200 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, &cf->cinfo);
1201 epan_dissect_fill_in_columns(edt);
1204 for (i = 0; i < cf->cinfo.num_cols; i++) {
1205 /* Find the length of the string for this column. */
1206 column_len = strlen(cf->cinfo.col_data[i]);
1207 if (col_widths[i] > column_len)
1208 column_len = col_widths[i];
1210 /* Make sure there's room in the line buffer for the column; if not,
1211 double its length. */
1212 line_len += column_len + 1; /* "+1" for space or \n */
1213 if (line_len > line_buf_len) {
1215 line_buf = g_realloc(line_buf, line_buf_len + 1);
1218 /* Right-justify the packet number column. */
1219 if (cf->cinfo.col_fmt[i] == COL_NUMBER)
1220 sprintf(cp, "%*s", col_widths[i], cf->cinfo.col_data[i]);
1222 sprintf(cp, "%-*s", col_widths[i], cf->cinfo.col_data[i]);
1224 if (i == cf->cinfo.num_cols - 1)
1230 print_line(cf->print_fh, print_args->format, line_buf);
1232 if (print_separator)
1233 print_line(cf->print_fh, print_args->format, "\n");
1235 /* Create the logical protocol tree, complete with the display
1236 representation of the items; we don't need the columns here,
1238 edt = epan_dissect_new(TRUE, TRUE);
1239 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1241 /* Print the information in that tree. */
1242 proto_tree_print(FALSE, print_args, (GNode *)edt->tree,
1243 fdata, cf->print_fh);
1245 if (print_args->print_hex) {
1246 /* Print the full packet data as hex. */
1247 print_hex_data(cf->print_fh, print_args->format, fdata);
1250 /* Print a blank line if we print anything after this. */
1251 print_separator = TRUE;
1253 epan_dissect_free(edt);
1257 /* We're done printing the packets; destroy the progress bar. */
1258 destroy_progress_dlg(progbar);
1260 if (col_widths != NULL)
1262 if (line_buf != NULL)
1265 print_finale(cf->print_fh, print_args->format);
1267 close_print_dest(print_args->to_file, cf->print_fh);
1269 cf->print_fh = NULL;
1274 /* Scan through the packet list and change all columns that use the
1275 "command-line-specified" time stamp format to use the current
1276 value of that format. */
1278 change_time_formats(capture_file *cf)
1283 guint32 progbar_quantum;
1284 guint32 progbar_nextstep;
1290 /* Are there any columns with time stamps in the "command-line-specified"
1293 XXX - we have to force the "column is writable" flag on, as it
1294 might be off from the last frame that was dissected. */
1295 col_set_writable(&cf->cinfo, TRUE);
1296 if (!check_col(&cf->cinfo, COL_CLS_TIME)) {
1297 /* No, there aren't any columns in that format, so we have no work
1302 /* Freeze the packet list while we redo it, so we don't get any
1303 screen updates while it happens. */
1306 /* Update the progress bar when it gets to this value. */
1307 progbar_nextstep = 0;
1308 /* When we reach the value that triggers a progress bar update,
1309 bump that value by this amount. */
1310 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1311 /* Count of packets at which we've looked. */
1315 progbar = create_progress_dlg("Changing time display", "Stop", &stop_flag);
1317 /* Iterate through the list of packets, checking whether the packet
1318 is in a row of the summary list and, if so, whether there are
1319 any columns that show the time in the "command-line-specified"
1320 format and, if so, update that row. */
1321 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1322 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1323 when we update it, we have to run the GTK+ main loop to get it
1324 to repaint what's pending, and doing so may involve an "ioctl()"
1325 to see if there's any pending input from an X server, and doing
1326 that for every packet can be costly, especially on a big file. */
1327 if (count >= progbar_nextstep) {
1328 /* let's not divide by zero. I should never be started
1329 * with count == 0, so let's assert that
1331 g_assert(cf->count > 0);
1333 update_progress_dlg(progbar, (gfloat) count / cf->count);
1335 progbar_nextstep += progbar_quantum;
1339 /* Well, the user decided to abort the redisplay. Just stop.
1341 XXX - this leaves the time field in the old format in
1342 frames we haven't yet processed. So it goes; should we
1343 simply not offer them the option of stopping? */
1349 /* Find what row this packet is in. */
1350 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1353 /* This packet is in the summary list, on row "row". */
1355 for (i = 0; i < cf->cinfo.num_cols; i++) {
1356 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1357 /* This is one of the columns that shows the time in
1358 "command-line-specified" format; update it. */
1359 cf->cinfo.col_buf[i][0] = '\0';
1360 col_set_cls_time(fdata, &cf->cinfo, i);
1361 gtk_clist_set_text(GTK_CLIST(packet_list), row, i,
1362 cf->cinfo.col_data[i]);
1368 /* We're done redisplaying the packets; destroy the progress bar. */
1369 destroy_progress_dlg(progbar);
1371 /* Set the column widths of those columns that show the time in
1372 "command-line-specified" format. */
1373 pl_style = gtk_widget_get_style(packet_list);
1374 for (i = 0; i < cf->cinfo.num_cols; i++) {
1375 if (cf->cinfo.fmt_matx[i][COL_CLS_TIME]) {
1376 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1377 gdk_string_width(pl_style->font, get_column_longest_string(COL_CLS_TIME)));
1381 /* Unfreeze the packet list. */
1386 find_packet(capture_file *cf, dfilter_t *sfcode)
1388 frame_data *start_fd;
1390 frame_data *new_fd = NULL;
1393 guint32 progbar_quantum;
1394 guint32 progbar_nextstep;
1396 gboolean frame_matched;
1398 epan_dissect_t *edt;
1400 start_fd = cf->current_frame;
1401 if (start_fd != NULL) {
1402 /* Iterate through the list of packets, starting at the packet we've
1403 picked, calling a routine to run the filter on the packet, see if
1404 it matches, and stop if so. */
1408 /* Update the progress bar when it gets to this value. */
1409 progbar_nextstep = 0;
1410 /* When we reach the value that triggers a progress bar update,
1411 bump that value by this amount. */
1412 progbar_quantum = cf->count/N_PROGBAR_UPDATES;
1415 progbar = create_progress_dlg("Searching", "Cancel", &stop_flag);
1419 /* Update the progress bar, but do it only N_PROGBAR_UPDATES times;
1420 when we update it, we have to run the GTK+ main loop to get it
1421 to repaint what's pending, and doing so may involve an "ioctl()"
1422 to see if there's any pending input from an X server, and doing
1423 that for every packet can be costly, especially on a big file. */
1424 if (count >= progbar_nextstep) {
1425 /* let's not divide by zero. I should never be started
1426 * with count == 0, so let's assert that
1428 g_assert(cf->count > 0);
1430 update_progress_dlg(progbar, (gfloat) count / cf->count);
1432 progbar_nextstep += progbar_quantum;
1436 /* Well, the user decided to abort the search. Go back to the
1437 frame where we started. */
1442 /* Go past the current frame. */
1443 if (cf->sbackward) {
1444 /* Go on to the previous frame. */
1445 fdata = fdata->prev;
1447 fdata = cf->plist_end; /* wrap around */
1449 /* Go on to the next frame. */
1450 fdata = fdata->next;
1452 fdata = cf->plist; /* wrap around */
1457 /* Is this packet in the display? */
1458 if (fdata->flags.passed_dfilter) {
1459 /* Yes. Does it match the search filter? */
1460 wtap_seek_read(cf->wth, fdata->file_off, &cf->pseudo_header,
1461 cf->pd, fdata->cap_len);
1462 edt = epan_dissect_new(TRUE, FALSE);
1463 epan_dissect_prime_dfilter(edt, sfcode);
1464 epan_dissect_run(edt, &cf->pseudo_header, cf->pd, fdata, NULL);
1465 frame_matched = dfilter_apply_edt(sfcode, edt);
1466 epan_dissect_free(edt);
1467 if (frame_matched) {
1469 break; /* found it! */
1473 if (fdata == start_fd) {
1474 /* We're back to the frame we were on originally, and that frame
1475 doesn't match the search filter. The search failed. */
1480 /* We're done scanning the packets; destroy the progress bar. */
1481 destroy_progress_dlg(progbar);
1484 if (new_fd != NULL) {
1485 /* We found a frame. Find what row it's in. */
1486 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), new_fd);
1487 g_assert(row != -1);
1489 /* Select that row, make it the focus row, and make it visible. */
1490 set_selected_row(row);
1491 return TRUE; /* success */
1493 return FALSE; /* failure */
1497 goto_frame(capture_file *cf, guint fnumber)
1502 for (fdata = cf->plist; fdata != NULL && fdata->num < fnumber; fdata = fdata->next)
1506 return NO_SUCH_FRAME; /* we didn't find that frame */
1507 if (!fdata->flags.passed_dfilter)
1508 return FRAME_NOT_DISPLAYED; /* the frame with that number isn't displayed */
1510 /* We found that frame, and it's currently being displayed.
1511 Find what row it's in. */
1512 row = gtk_clist_find_row_from_data(GTK_CLIST(packet_list), fdata);
1513 g_assert(row != -1);
1515 /* Select that row, make it the focus row, and make it visible. */
1516 set_selected_row(row);
1520 /* Select the packet on a given row. */
1522 select_packet(capture_file *cf, int row)
1526 /* Get the frame data struct pointer for this frame */
1527 fdata = (frame_data *) gtk_clist_get_row_data(GTK_CLIST(packet_list), row);
1529 if (fdata == NULL) {
1530 /* XXX - if a GtkCList's selection mode is GTK_SELECTION_BROWSE, when
1531 the first entry is added to it by "real_insert_row()", that row
1532 is selected (see "real_insert_row()", in "gtk/gtkclist.c", in both
1533 our version and the vanilla GTK+ version).
1535 This means that a "select-row" signal is emitted; this causes
1536 "packet_list_select_cb()" to be called, which causes "select_packet()"
1539 "select_packet()" fetches, above, the data associated with the
1540 row that was selected; however, as "gtk_clist_append()", which
1541 called "real_insert_row()", hasn't yet returned, we haven't yet
1542 associated any data with that row, so we get back a null pointer.
1544 We can't assume that there's only one frame in the frame list,
1545 either, as we may be filtering the display.
1547 We therefore assume that, if "row" is 0, i.e. the first row
1548 is being selected, and "cf->first_displayed" equals
1549 "cf->last_displayed", i.e. there's only one frame being
1550 displayed, that frame is the frame we want.
1552 This means we have to set "cf->first_displayed" and
1553 "cf->last_displayed" before adding the row to the
1554 GtkCList; see the comment in "add_packet_to_packet_list()". */
1556 if (row == 0 && cf->first_displayed == cf->last_displayed)
1557 fdata = cf->first_displayed;
1560 /* Record that this frame is the current frame. */
1561 cf->current_frame = fdata;
1563 /* Get the data in that frame. */
1564 wtap_seek_read (cf->wth, fdata->file_off, &cf->pseudo_header,
1565 cf->pd, fdata->cap_len);
1567 /* Create the logical protocol tree. */
1568 if (cf->edt != NULL) {
1569 epan_dissect_free(cf->edt);
1572 /* We don't need the columns here. */
1573 cf->edt = epan_dissect_new(TRUE, TRUE);
1574 epan_dissect_run(cf->edt, &cf->pseudo_header, cf->pd, cf->current_frame,
1577 /* Display the GUI protocol tree and hex dump.
1578 XXX - why does the protocol tree not show up if we call
1579 "proto_tree_draw()" before calling "add_byte_views()"? */
1580 add_byte_views(cf->current_frame, cf->edt->tree, tree_view,
1582 proto_tree_draw(cf->edt->tree, tree_view);
1584 /* A packet is selected. */
1585 set_menus_for_selected_packet(TRUE);
1588 /* Unselect the selected packet, if any. */
1590 unselect_packet(capture_file *cf)
1592 /* Destroy the epan_dissect_t for the unselected packet. */
1593 if (cf->edt != NULL) {
1594 epan_dissect_free(cf->edt);
1598 /* Clear out the display of that packet. */
1599 clear_tree_and_hex_views();
1601 /* No packet is selected. */
1602 set_menus_for_selected_packet(FALSE);
1604 /* No protocol tree means no selected field. */
1608 /* Set the selected row and the focus row of the packet list to the specified
1609 row, and make it visible if it's not currently visible. */
1611 set_selected_row(int row)
1613 if (gtk_clist_row_is_visible(GTK_CLIST(packet_list), row) != GTK_VISIBILITY_FULL)
1614 gtk_clist_moveto(GTK_CLIST(packet_list), row, -1, 0.0, 0.0);
1616 /* XXX - why is there no "gtk_clist_set_focus_row()", so that we
1617 can make the row for the frame we found the focus row?
1621 http://www.gnome.org/mailing-lists/archives/gtk-list/2000-January/0038.shtml
1624 GTK_CLIST(packet_list)->focus_row = row;
1626 gtk_clist_select_row(GTK_CLIST(packet_list), row, -1);
1629 /* Unset the selected protocol tree field, if any. */
1631 unselect_field(void)
1633 statusbar_pop_field_msg();
1634 finfo_selected = NULL;
1635 set_menus_for_selected_tree_row(FALSE);
1639 * Mark a particular frame.
1642 mark_frame(capture_file *cf, frame_data *frame)
1644 frame->flags.marked = TRUE;
1649 * Unmark a particular frame.
1652 unmark_frame(capture_file *cf, frame_data *frame)
1654 frame->flags.marked = FALSE;
1659 freeze_clist(capture_file *cf)
1663 /* Make the column sizes static, so they don't adjust while
1664 we're reading the capture file (freezing the clist doesn't
1665 seem to suffice). */
1666 for (i = 0; i < cf->cinfo.num_cols; i++)
1667 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, FALSE);
1668 gtk_clist_freeze(GTK_CLIST(packet_list));
1672 thaw_clist(capture_file *cf)
1676 for (i = 0; i < cf->cinfo.num_cols; i++) {
1677 if (get_column_resize_type(cf->cinfo.col_fmt[i]) == RESIZE_MANUAL) {
1678 /* Set this column's width to the appropriate value. */
1679 gtk_clist_set_column_width(GTK_CLIST(packet_list), i,
1680 cf->cinfo.col_width[i]);
1682 /* Make this column's size dynamic, so that it adjusts to the
1683 appropriate size. */
1684 gtk_clist_set_column_auto_resize(GTK_CLIST(packet_list), i, TRUE);
1687 gtk_clist_thaw(GTK_CLIST(packet_list));
1689 /* Hopefully, the columns have now gotten their appropriate sizes;
1690 make them resizeable - a column that auto-resizes cannot be
1691 resized by the user, and *vice versa*. */
1692 for (i = 0; i < cf->cinfo.num_cols; i++)
1693 gtk_clist_set_column_resizeable(GTK_CLIST(packet_list), i, TRUE);
1697 save_cap_file(char *fname, capture_file *cf, gboolean save_filtered, gboolean save_marked,
1700 gchar *from_filename;
1701 gchar *name_ptr, *save_msg, *save_fmt = " Saving: %s...";
1707 struct wtap_pkthdr hdr;
1708 union wtap_pseudo_header pseudo_header;
1711 name_ptr = get_basename(fname);
1712 msg_len = strlen(name_ptr) + strlen(save_fmt) + 2;
1713 save_msg = g_malloc(msg_len);
1714 snprintf(save_msg, msg_len, save_fmt, name_ptr);
1715 statusbar_push_file_msg(save_msg);
1718 if (!save_filtered && !save_marked && save_format == cf->cd_t) {
1719 /* We're not filtering packets, and we're saving it in the format
1720 it's already in, so we can just move or copy the raw data. */
1722 /* In this branch, we set "err" only if we get an error, so we
1723 must first clear it. */
1725 if (cf->is_tempfile) {
1726 /* The file being saved is a temporary file from a live
1727 capture, so it doesn't need to stay around under that name;
1728 first, try renaming the capture buffer file to the new name. */
1730 if (rename(cf->filename, fname) == 0) {
1731 /* That succeeded - there's no need to copy the source file. */
1732 from_filename = NULL;
1735 if (errno == EXDEV) {
1736 /* They're on different file systems, so we have to copy the
1739 from_filename = cf->filename;
1741 /* The rename failed, but not because they're on different
1742 file systems - put up an error message. (Or should we
1743 just punt and try to copy? The only reason why I'd
1744 expect the rename to fail and the copy to succeed would
1745 be if we didn't have permission to remove the file from
1746 the temporary directory, and that might be fixable - but
1747 is it worth requiring the user to go off and fix it?) */
1749 simple_dialog(ESD_TYPE_CRIT, NULL,
1750 file_rename_error_message(err), fname);
1756 from_filename = cf->filename;
1759 /* It's a permanent file, so we should copy it, and not remove the
1762 from_filename = cf->filename;
1764 /* Copy the file, if we haven't moved it. */
1766 if (!copy_binary_file(from_filename, fname)) {
1771 /* Either we're filtering packets, or we're saving in a different
1772 format; we can't do that by copying or moving the capture file,
1773 we have to do it by writing the packets out in Wiretap. */
1774 pdh = wtap_dump_open(fname, save_format, cf->lnk_t, cf->snap, &err);
1776 simple_dialog(ESD_TYPE_CRIT, NULL,
1777 file_open_error_message(err, TRUE), fname);
1781 /* XXX - have a way to save only the packets currently selected by
1782 the display filter or the marked ones.
1784 If we do that, should we make that file the current file? If so,
1785 it means we can no longer get at the other packets. What does
1787 for (fdata = cf->plist; fdata != NULL; fdata = fdata->next) {
1788 /* XXX - do a progress bar */
1789 if ((!save_filtered && !save_marked) ||
1790 (save_filtered && fdata->flags.passed_dfilter && !save_marked) ||
1791 (save_marked && fdata->flags.marked && !save_filtered) ||
1792 (save_filtered && save_marked && fdata->flags.passed_dfilter &&
1793 fdata->flags.marked)) {
1795 - we're saving all frames, or
1796 - we're saving filtered frames and this one passed the display filter or
1797 - we're saving marked frames (and it has been marked) or
1798 - we're saving filtered _and_ marked frames,
1800 hdr.ts.tv_sec = fdata->abs_secs;
1801 hdr.ts.tv_usec = fdata->abs_usecs;
1802 hdr.caplen = fdata->cap_len;
1803 hdr.len = fdata->pkt_len;
1804 hdr.pkt_encap = fdata->lnk_t;
1805 wtap_seek_read(cf->wth, fdata->file_off, &pseudo_header,
1806 pd, fdata->cap_len);
1808 if (!wtap_dump(pdh, &hdr, &pseudo_header, pd, &err)) {
1809 simple_dialog(ESD_TYPE_CRIT, NULL,
1810 file_write_error_message(err), fname);
1811 wtap_dump_close(pdh, &err);
1817 if (!wtap_dump_close(pdh, &err)) {
1818 simple_dialog(ESD_TYPE_WARN, NULL,
1819 file_close_error_message(err), fname);
1826 /* Pop the "Saving:" message off the status bar. */
1827 statusbar_pop_file_msg();
1829 if (!save_filtered && !save_marked) {
1830 /* We saved the entire capture, not just some packets from it.
1831 Open and read the file we saved it to.
1833 XXX - this is somewhat of a waste; we already have the
1834 packets, all this gets us is updated file type information
1835 (which we could just stuff into "cf"), and having the new
1836 file be the one we have opened and from which we're reading
1837 the data, and it means we have to spend time opening and
1838 reading the file, which could be a significant amount of
1839 time if the file is large. */
1840 cf->user_saved = TRUE;
1842 if ((err = open_cap_file(fname, FALSE, cf)) == 0) {
1843 /* XXX - report errors if this fails? */
1844 switch (read_cap_file(cf, &err)) {
1848 /* Just because we got an error, that doesn't mean we were unable
1849 to read any of the file; we handle what we could get from the
1854 /* The user bailed out of re-reading the capture file; the
1855 capture file has been closed - just return (without
1856 changing any menu settings; "close_cap_file()" set them
1857 correctly for the "no capture file open" state). */
1860 set_menus_for_unsaved_capture_file(FALSE);
1868 file_open_error_message(int err, gboolean for_writing)
1871 static char errmsg_errno[1024+1];
1875 case WTAP_ERR_NOT_REGULAR_FILE:
1876 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
1879 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
1880 case WTAP_ERR_UNSUPPORTED:
1881 /* Seen only when opening a capture file for reading. */
1882 errmsg = "The file \"%s\" is not a capture file in a format Ethereal understands.";
1885 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
1886 /* Seen only when opening a capture file for writing. */
1887 errmsg = "Ethereal does not support writing capture files in that format.";
1890 case WTAP_ERR_UNSUPPORTED_ENCAP:
1891 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
1893 errmsg = "Ethereal cannot save this capture in that format.";
1895 errmsg = "The file \"%s\" is a capture for a network type that Ethereal doesn't support.";
1898 case WTAP_ERR_BAD_RECORD:
1899 errmsg = "The file \"%s\" appears to be damaged or corrupt.";
1902 case WTAP_ERR_CANT_OPEN:
1904 errmsg = "The file \"%s\" could not be created for some unknown reason.";
1906 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
1909 case WTAP_ERR_SHORT_READ:
1910 errmsg = "The file \"%s\" appears to have been cut short"
1911 " in the middle of a packet or other data.";
1914 case WTAP_ERR_SHORT_WRITE:
1915 errmsg = "A full header couldn't be written to the file \"%s\".";
1920 errmsg = "The path to the file \"%s\" does not exist.";
1922 errmsg = "The file \"%s\" does not exist.";
1927 errmsg = "You do not have permission to create or write to the file \"%s\".";
1929 errmsg = "You do not have permission to read the file \"%s\".";
1933 errmsg = "\"%s\" is a directory (folder), not a file.";
1937 snprintf(errmsg_errno, sizeof(errmsg_errno),
1938 "The file \"%%s\" could not be opened: %s.",
1939 wtap_strerror(err));
1940 errmsg = errmsg_errno;
1947 file_rename_error_message(int err)
1950 static char errmsg_errno[1024+1];
1955 errmsg = "The path to the file \"%s\" does not exist.";
1959 errmsg = "You do not have permission to move the capture file to \"%s\".";
1963 snprintf(errmsg_errno, sizeof(errmsg_errno),
1964 "The file \"%%s\" could not be moved: %s.",
1965 wtap_strerror(err));
1966 errmsg = errmsg_errno;
1973 file_read_error_message(int err)
1975 static char errmsg_errno[1024+1];
1977 snprintf(errmsg_errno, sizeof(errmsg_errno),
1978 "An error occurred while reading from the file \"%%s\": %s.",
1979 wtap_strerror(err));
1980 return errmsg_errno;
1984 file_write_error_message(int err)
1987 static char errmsg_errno[1024+1];
1992 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
1997 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2002 snprintf(errmsg_errno, sizeof(errmsg_errno),
2003 "An error occurred while writing to the file \"%%s\": %s.",
2004 wtap_strerror(err));
2005 errmsg = errmsg_errno;
2011 /* Check for write errors - if the file is being written to an NFS server,
2012 a write error may not show up until the file is closed, as NFS clients
2013 might not send writes to the server until the "write()" call finishes,
2014 so that the write may fail on the server but the "write()" may succeed. */
2016 file_close_error_message(int err)
2019 static char errmsg_errno[1024+1];
2023 case WTAP_ERR_CANT_CLOSE:
2024 errmsg = "The file \"%s\" couldn't be closed for some unknown reason.";
2027 case WTAP_ERR_SHORT_WRITE:
2028 errmsg = "Not all the packets could be written to the file \"%s\".";
2032 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
2037 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
2042 snprintf(errmsg_errno, sizeof(errmsg_errno),
2043 "An error occurred while closing the file \"%%s\": %s.",
2044 wtap_strerror(err));
2045 errmsg = errmsg_errno;
2052 /* Copies a file in binary mode, for those operating systems that care about
2054 * Returns TRUE on success, FALSE on failure. If a failure, it also
2055 * displays a simple dialog window with the error message.
2058 copy_binary_file(char *from_filename, char *to_filename)
2060 int from_fd, to_fd, nread, nwritten, err;
2061 guint8 pd[65536]; /* XXX - Hmm, 64K here, 64K in save_cap_file(),
2062 perhaps we should make just one 64K buffer. */
2064 /* Copy the raw bytes of the file. */
2065 from_fd = open(from_filename, O_RDONLY | O_BINARY);
2068 simple_dialog(ESD_TYPE_CRIT, NULL,
2069 file_open_error_message(err, TRUE), from_filename);
2073 /* Use open() instead of creat() so that we can pass the O_BINARY
2074 flag, which is relevant on Win32; it appears that "creat()"
2075 may open the file in text mode, not binary mode, but we want
2076 to copy the raw bytes of the file, so we need the output file
2077 to be open in binary mode. */
2078 to_fd = open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
2081 simple_dialog(ESD_TYPE_CRIT, NULL,
2082 file_open_error_message(err, TRUE), to_filename);
2087 while ((nread = read(from_fd, pd, sizeof pd)) > 0) {
2088 nwritten = write(to_fd, pd, nread);
2089 if (nwritten < nread) {
2093 err = WTAP_ERR_SHORT_WRITE;
2094 simple_dialog(ESD_TYPE_CRIT, NULL,
2095 file_write_error_message(err), to_filename);
2103 simple_dialog(ESD_TYPE_CRIT, NULL,
2104 file_read_error_message(err), from_filename);
2110 if (close(to_fd) < 0) {
2112 simple_dialog(ESD_TYPE_CRIT, NULL,
2113 file_close_error_message(err), to_filename);