2 * Routines for handling file sets
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
39 #ifdef HAVE_SYS_STAT_H
40 # include <sys/stat.h>
43 #ifdef HAVE_SYS_WAIT_H
44 # include <sys/wait.h>
53 #include <wsutil/file_util.h>
56 #include <epan/filesystem.h>
57 #include <epan/strutil.h>
63 typedef struct _fileset {
68 /* this is the fileset's global data */
69 static fileset set = { NULL, NULL};
72 /* is this a probable file of a file set (does the naming pattern match)? */
74 fileset_filename_match_pattern(const char *fname)
78 size_t minlen = strlen("_00001_20050418010750");
82 /* d:\dir1\test_00001_20050418010750.cap */
83 filename = g_strdup(get_basename(fname));
85 /* test_00001_20050418010750.cap */
86 pfx = strrchr(filename, '.');
87 if(pfx == NULL) { /* suffix is optional */
88 pfx = filename + strlen(filename);
90 /* test_00001_20050418010750 */
93 /* filename long enough? */
94 baselen = strlen(filename);
95 if(baselen < minlen) {
100 /* there must be two underscores at special places */
101 if(filename[baselen-minlen] != '_' || filename[baselen-minlen+6] != '_') {
106 /* replace the two underscores by digits */
107 filename[baselen-minlen] = '0';
108 filename[baselen-minlen+6] = '0';
110 /* we should have only digits now */
114 if(!isdigit( (guchar) filename[baselen])) {
122 /* ok, seems to be good */
127 /* test, if both files could be in the same file set */
128 /* (the filenames must already be in correct shape) */
130 fileset_is_file_in_set(const char *fname1, const char *fname2)
136 size_t minlen = strlen("_00001_20050418010750");
139 /* just to be sure ... */
140 g_assert(fileset_filename_match_pattern(fname1));
141 g_assert(fileset_filename_match_pattern(fname2));
143 dup_f1 = g_strdup(fname1);
144 dup_f2 = g_strdup(fname2);
146 pfx1 = strrchr(dup_f1, '.');
147 pfx2 = strrchr(dup_f2, '.');
148 /* suffix is optional */
149 if (!pfx1) pfx1 = dup_f1 + strlen(dup_f1);
150 if (!pfx2) pfx2 = dup_f2 + strlen(dup_f2);
152 /* the optional suffix (file extension) must be equal */
153 if(strcmp(pfx1, pfx2) != 0) {
159 *(pfx1-minlen) = '\0';
160 *(pfx2-minlen) = '\0';
162 if(strcmp(dup_f1, dup_f2) != 0) {
173 /* GCompareFunc helper for g_list_find_custom() */
175 fileset_find_by_path(gconstpointer a, gconstpointer b)
177 const fileset_entry *entry;
180 entry = (const fileset_entry *) a;
181 path = (const char *) b;
183 return g_strcmp0(entry->fullname, path);
186 /* update the time and size of this file in the list */
188 fileset_update_file(const char *path)
192 fileset_entry *entry = NULL;
195 fh = ws_open( path, O_RDONLY, 0000 /* no creation so don't matter */);
199 result = ws_fstat64( fh, &buf );
201 /* Show statistics if they are valid */
203 entry_list = g_list_find_custom(set.entries, path,
204 fileset_find_by_path);
207 entry = (fileset_entry *) entry_list->data;
208 entry->ctime = buf.st_ctime;
209 entry->mtime = buf.st_mtime;
210 entry->size = buf.st_size;
218 /* we know this file is part of the set, so add it */
219 static fileset_entry *
220 fileset_add_file(const char *dirname, const char *fname, gboolean current)
225 fileset_entry *entry = NULL;
228 path = g_strdup_printf("%s%s", dirname, fname);
230 fh = ws_open( path, O_RDONLY, 0000 /* no creation so don't matter */);
234 result = ws_fstat64( fh, &buf );
236 /* Show statistics if they are valid */
238 entry = (fileset_entry *)g_malloc(sizeof(fileset_entry));
240 entry->fullname = g_strdup(path);
241 entry->name = g_strdup(fname);
242 entry->ctime = buf.st_ctime;
243 entry->mtime = buf.st_mtime;
244 entry->size = buf.st_size;
245 entry->current = current;
247 set.entries = g_list_append(set.entries, entry);
259 /* compare two list entries by creation date/time (through filename) */
261 fileset_sort_compare(gconstpointer a, gconstpointer b)
263 const fileset_entry *entry_a = (const fileset_entry *)a;
264 const fileset_entry *entry_b = (const fileset_entry *)b;
266 return strcmp(entry_a->name, entry_b->name);
270 /* add all file set entries to the dialog */
271 void fileset_update_dlg(void *window)
276 /* add all entires to the dialog */
277 le = g_list_first(set.entries);
279 fileset_dlg_add_file((fileset_entry *)le->data, window);
280 le = g_list_next(le);
285 /* walk through the directory of the loaded file and add every file matching the current file */
287 fileset_add_dir(const char *fname, void *window)
289 WS_DIR *dir; /* scanned directory */
290 WS_DIRENT *file; /* current file */
296 /* get (convert) directory name, but don't touch the given string */
297 fname_dup = get_dirname(g_strdup(fname));
298 dirname = g_string_new(fname_dup);
301 set.dirname = g_strdup(dirname->str);
303 dirname = g_string_append_c(dirname, G_DIR_SEPARATOR);
305 /* is the current file probably a part of any fileset? */
306 if(fileset_filename_match_pattern(fname)) {
307 /* yes, go through the files in the directory and check if the file in question is part of the current file set */
308 if ((dir = ws_dir_open(dirname->str, 0, NULL)) != NULL) {
309 while ((file = ws_dir_read_name(dir)) != NULL) {
310 name = ws_dir_get_name(file);
311 if(fileset_filename_match_pattern(name) && fileset_is_file_in_set(name, get_basename(fname))) {
312 fileset_add_file(dirname->str, name, strcmp(name, get_basename(fname))== 0 /* current */);
319 /* no, this is a "standalone file", just add this one */
320 fileset_add_file(dirname->str, get_basename(fname), TRUE /* current */);
321 /* don't add the file to the dialog here, this will be done in fileset_update_dlg() below */
324 g_string_free(dirname, TRUE /* free_segment */);
326 /* sort entries by creation time */
327 set.entries = g_list_sort(set.entries, fileset_sort_compare);
329 fileset_update_dlg(window);
333 /* get current directory name */
335 fileset_get_dirname(void)
341 /* get the current list entry, or NULL */
343 fileset_get_current(void)
346 fileset_entry *entry;
349 /* add all entires to the dialog */
350 le = g_list_first(set.entries);
352 entry = (fileset_entry *)le->data;
356 le = g_list_next(le);
363 /* get the file set entry after the current one, or NULL */
365 fileset_get_next(void)
370 le = fileset_get_current();
375 le = g_list_next(le);
380 return (fileset_entry *)le->data;
384 /* get the file set entry before the current one, or NULL */
386 fileset_get_previous(void)
391 le = fileset_get_current();
396 le = g_list_previous(le);
401 return (fileset_entry *)le->data;
405 /* delete a single entry */
406 static void fileset_entry_delete(gpointer data, gpointer user_data _U_)
408 fileset_entry *entry = (fileset_entry *)data;
410 g_free( (gpointer) entry->fullname);
411 entry->fullname = NULL;
412 g_free( (gpointer) entry->name);
418 /* delete the whole file set */
419 void fileset_delete(void)
421 /* free the entry list */
423 g_list_foreach(set.entries, fileset_entry_delete, NULL);
424 g_list_free(set.entries);
430 g_free( (gpointer) set.dirname);