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- /*
- * sfdf.c
- *
- * find duplicates. searches a given path and its sub-directories for
- * duplicate files. Duplicate files have the same name, size, date and
- * contents. However, the definition used by this program can be any
- * user-specified combination of the above.
- *
- * Roy Bixler (original development and Atari ST version)
- * Ayman Barakat (idea)
- * David Oertel (MS-DOS version)
- *
- * Version 1.0: March 11, 1991
- * Version 1.01: April 12, 1992
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 1, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- #include <ctype.h>
- #include <dir.h>
- #include <dos.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
-
- #include "fdfcomm.h"
- #include "fdfstat.h"
- #include "elib.h"
- #include "sfdf.h"
-
-
-
- /*
- * print_help
- *
- * prints out the help message for the program
- */
- void print_help()
-
- {
- printf(SFDF_USAGE, PROG_NAME, PROG_NAME);
- }
-
-
-
- /*
- * show_doc
- *
- * show full documentation
- */
- void show_doc()
-
- {
- printf(SFDF_SCHPIEL1);
- printf(SFDF_SCHPIEL2);
- }
-
-
-
- /*
- * sort_eq_match
- *
- * returns non-zero if the sort criteria is also one of the match criteria.
- */
- int sort_eq_match()
-
- {
- return (((Sort_criteria & NAME_SORT) && (Match_criteria & NAMES_MATCH)) ||
- ((Sort_criteria & SIZE_SORT) && (Match_criteria & SIZES_MATCH)) ||
- ((Sort_criteria & TIME_SORT) && (Match_criteria & TIMES_MATCH)));
- }
-
-
-
- /*
- * print_dups
- *
- * given a pointer to a name which has been determined to be duplicated, print
- * all the names and their path's out. Return where a mismatch is found.
- */
- void print_dups(FILE_LIST *start)
-
- {
- int n_found = 0;
- long n_bytes = 0L;
- FILE_LIST *cur;
-
- for (cur = start->next;
- ((cur != NULL) && ((!sort_eq_match()) || (cmpflist_eq(start, cur))));
- cur = cur->next)
- if ((!cur->printed) && (files_match(start, cur))) {
- if (!n_found++) {
- n_found++;
- if (v_flag)
- n_bytes += start->dta.ff_fsize;
- print_match_header(start);
- print_next_match(start, -1);
- }
- if (v_flag)
- n_bytes += cur->dta.ff_fsize;
- print_next_match(cur, -1);
- }
-
- if (n_found) {
- if (v_flag) {
- update_num_dups(n_found, n_bytes);
- update_num_which_dupd();
- }
- printf("\n");
- }
- }
-
-
-
- /*
- * gen_id_menu
- *
- * given a starting point in the file list, generate an interactive delete
- * menu. Return number of items put into the menu.
- */
- int gen_id_menu(FILE_LIST *start, FILE_LIST **menu, int max_items)
-
- {
- int n_found = 0;
- long n_bytes = 0L;
- FILE_LIST *cur;
-
- for (cur = start->next;
- ((cur != NULL) && (cmpflist_eq(start, cur)) && (n_found < max_items));
- cur = cur->next)
- if ((!cur->printed) && (files_match(start, cur))) {
- if (n_found == 0) {
- if (v_flag)
- n_bytes += start->dta.ff_fsize;
- menu[n_found++] = start;
- }
- if (v_flag)
- n_bytes += cur->dta.ff_fsize;
- menu[n_found++] = cur;
- }
-
- if ((n_found) && (v_flag)) {
- update_num_which_dupd();
- update_num_dups(n_found, n_bytes);
- }
-
- return n_found;
- }
-
-
-
- /*
- * id_dups
- *
- * given a pointer to a name which has been determined to be duplicated, print
- * all the names and their path's out and ask the user which ones to delete.
- */
- void id_dups(FILE_LIST *start)
-
- {
- int n_found, i, n_del;
- FILE_LIST *cur, *menu[N_INTERACTIVE];
- char menu_sel[MAX_STR], which_del[N_INTERACTIVE];
-
- if (!(n_found = gen_id_menu(start, menu, N_INTERACTIVE)))
- return;
- while (1) {
- print_id_menu(menu, n_found);
- printf("\nEnter list of files to delete (hit CR for none)\n");
- fgets(menu_sel, MAX_STR-1, stdin);
- zap_trailing_nl(menu_sel, MAX_STR-1, stdin);
- if (!mark_list(menu_sel, which_del, n_found)) {
- for (n_del=0, i=0; i < n_found; i++)
- if (which_del[i])
- if (!delete_path_name_file(menu[i]->path,
- menu[i]->dta.ff_name, '\0')) {
- n_del++;
- if (v_flag) {
- update_total_del_bytes(menu[i]->dta.ff_fsize);
- if (v_flag > 1) {
- printf("Deleted ");
- print_fpath(menu[i]->path,
- menu[i]->dta.ff_name);
- printf("\n");
- }
- }
- }
- break;
- }
- }
-
- if (n_del)
- printf("\n");
- }
-
-
- /*
- * find_non_printed
- *
- * given a pointer to a FILE_LIST, return the pointer to the next element which
- * has not been printed yet.
- */
- FILE_LIST *find_non_printed(FILE_LIST *file)
-
- {
- for (; ((file != NULL) && (file->printed)); file = file->next);
- return file;
- }
-
-
-
- /*
- * find_dups
- *
- * given a path, find the duplicate files and dump them to the standard output.
- */
- void find_dups()
-
- {
- FILE_LIST *f_found;
-
- for (f_found = F_list; (f_found != NULL);
- f_found = find_non_printed(f_found->next))
- if (i_flag)
- id_dups(f_found);
- else
- print_dups(f_found);
- }
-
-
-
- /*
- * count_total_stats
- *
- * go back over the linked list and count the number of files and the total
- * bytes in the files
- */
- void count_total_stats()
-
- {
- FILE_LIST *cur;
-
- for (cur = F_list; cur != NULL; cur = cur->next) {
- update_num_files();
- update_total_bytes(cur->dta.ff_fsize);
- }
- }
-
-
-
- /*
- * get_options
- *
- * get the command-line options, check for consistency and set the appropriate
- * variables.
- */
- int get_options(int argc, char **argv)
-
- {
- extern int getopt(int argc, char **argv, char *opts);
- extern int Optind;
- extern char *optarg;
- int optchar;
- char a_flag = 0, c_flag = 0, d_flag = 0, n_flag = 0, s_flag = 0;
-
- if (argc < 2) {
- print_help();
- exit(-1);
- }
-
- while ((optchar = getopt(argc, argv, GETOPT_LIST)) != EOF) {
- if (isupper(optchar))
- optchar = tolower(optchar);
- switch (optchar) {
- case 'i':
- i_flag = 1;
- break;
- case 'l':
- l_flag = 1;
- break;
- case 'm':
- if ((optarg == NULL) || (strpbrk(optarg, "AaCcDdNnSs") != optarg)) {
- printf("%s: must specify 'a' or 'c', 'd', 'n' and/or 's' after -m\n",
- PROG_NAME);
- print_help();
- exit(-1);
- }
- for (;*optarg != '\0'; optarg++) {
- if (isupper(*optarg))
- *optarg = tolower(*optarg);
- switch (*optarg) {
- case 'a':
- a_flag = 1;
- break;
- case 'c':
- c_flag = 1;
- Match_criteria |= CONTENTS_MATCH;
- break;
- case 'd':
- d_flag = 1;
- Match_criteria |= TIMES_MATCH;
- break;
- case 'n':
- n_flag = 1;
- Match_criteria |= NAMES_MATCH;
- break;
- case 's':
- s_flag = 1;
- Match_criteria |= SIZES_MATCH;
- break;
- default:
- printf("%s: invalid match criteria '%c' specified\n",
- PROG_NAME, *optarg);
- print_help();
- exit(-1);
- }
- }
- break;
- case 'o':
- if ((optarg == NULL) || (strpbrk(optarg, "AaDd") != optarg)) {
- printf("%s: must specify 'a' or 'd' after -o\n", PROG_NAME);
- print_help();
- exit(-1);
- }
- if (isupper(*optarg))
- *optarg = tolower(*optarg);
- if (*optarg == 'a')
- Sort_order = ASCENDING;
- else if (*optarg == 'd')
- Sort_order = DESCENDING;
- break;
- case 's':
- if ((optarg == NULL) || (strpbrk(optarg, "DdNnSs") != optarg)) {
- printf("%s: must specify 'd', 'n' or 's' after -s\n",
- PROG_NAME);
- print_help();
- exit(-1);
- }
- if (isupper(*optarg))
- *optarg = tolower(*optarg);
- switch (*optarg) {
- case 'd':
- Sort_criteria = TIME_SORT;
- break;
- case 'n':
- Sort_criteria = NAME_SORT;
- break;
- case 's':
- Sort_criteria = SIZE_SORT;
- break;
- }
- break;
- case 'v':
- v_flag++;
- break;
- case '?':
- show_doc();
- exit(0);
- default:
- print_help();
- exit(-1);
- }
- }
-
- if (argc == Optind) {
- printf("%s: at least one path specification required\n", PROG_NAME);
- print_help();
- exit(-1);
- }
- else if (a_flag)
- if ((c_flag) || (d_flag) || (n_flag) || (s_flag)) {
- printf("%s: -ma option conflicts with -mc, -md, -mn or -ms\n",
- PROG_NAME);
- print_help();
- exit(-1);
- }
- else
- Match_criteria = ALL_MATCH;
- else if (!Match_criteria)
- Match_criteria = (TIMES_MATCH|SIZES_MATCH|NAMES_MATCH);
- else if (Match_criteria & CONTENTS_MATCH)
- Match_criteria |= SIZES_MATCH;
- if (!Sort_criteria)
- Sort_criteria = NAME_SORT;
-
- return Optind;
- }
-
-
-
- int main(int argc, char **argv)
-
- {
- int i;
- char form_path[MAXPATH];
-
- for (i = get_options(argc, argv); i < argc; i++) {
- format_dir(argv[i], '\0', form_path);
- if (v_flag > 1)
- printf("finding duplicates under %s:\n\n", form_path);
- list_files(PROG_NAME, form_path, (char) 1);
- }
-
- find_dups();
- if (v_flag) {
- count_total_stats();
- print_stats();
- }
-
- return(0);
- }
-