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142 lines
3.1 KiB
142 lines
3.1 KiB
4 months ago
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/* Copyright 1997,2000-2002,2009 Alain Knaff.
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* This file is part of mtools.
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*
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* Mtools is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Mtools is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Mtools. If not, see <http://www.gnu.org/licenses/>.
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*
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* mdu.c:
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* Display the space occupied by an MSDOS directory
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*/
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#include "sysincludes.h"
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#include "msdos.h"
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#include "vfat.h"
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#include "mtools.h"
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#include "file.h"
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#include "mainloop.h"
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#include "fs.h"
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#include "codepage.h"
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typedef struct Arg_t {
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int all;
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int inDir;
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int summary;
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struct Arg_t *parent;
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char *target;
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char *path;
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unsigned int blocks;
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MainParam_t mp;
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} Arg_t;
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static void usage(int ret) NORETURN;
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static void usage(int ret)
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{
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fprintf(stderr, "Mtools version %s, dated %s\n",
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mversion, mdate);
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fprintf(stderr, "Usage: %s: msdosdirectory\n",
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progname);
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exit(ret);
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}
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static int file_mdu(direntry_t *entry, MainParam_t *mp)
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{
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unsigned int blocks;
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Arg_t * arg = (Arg_t *) (mp->arg);
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blocks = countBlocks(entry->Dir,getStart(entry->Dir, &entry->dir));
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if(arg->all || !arg->inDir) {
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fprintPwd(stdout, entry,0);
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printf(" %d\n", blocks);
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}
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arg->blocks += blocks;
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return GOT_ONE;
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}
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static int dir_mdu(direntry_t *entry, MainParam_t *mp)
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{
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Arg_t *parentArg = (Arg_t *) (mp->arg);
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Arg_t arg;
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int ret;
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arg = *parentArg;
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arg.mp.arg = (void *) &arg;
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arg.parent = parentArg;
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arg.inDir = 1;
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/* account for the space occupied by the directory itself */
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if(!isRootDir(entry->Dir)) {
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arg.blocks = countBlocks(entry->Dir,
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getStart(entry->Dir, &entry->dir));
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} else {
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arg.blocks = 0;
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}
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/* recursion */
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ret = mp->loop(mp->File, &arg.mp, "*");
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if(!arg.summary || !parentArg->inDir) {
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fprintPwd(stdout, entry,0);
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printf(" %d\n", arg.blocks);
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}
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arg.parent->blocks += arg.blocks;
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return ret;
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}
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void mdu(int argc, char **argv, int type UNUSEDP) NORETURN;
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void mdu(int argc, char **argv, int type UNUSEDP)
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{
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Arg_t arg;
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int c;
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arg.all = 0;
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arg.inDir = 0;
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arg.summary = 0;
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if(helpFlag(argc, argv))
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usage(0);
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while ((c = getopt(argc, argv, "i:ash")) != EOF) {
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switch (c) {
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case 'i':
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set_cmd_line_image(optarg);
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break;
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case 'a':
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arg.all = 1;
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break;
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case 's':
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arg.summary = 1;
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break;
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case 'h':
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usage(0);
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case '?':
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usage(1);
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}
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}
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if (optind >= argc)
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usage(1);
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if(arg.summary && arg.all) {
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fprintf(stderr,"-a and -s options are mutually exclusive\n");
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usage(1);
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}
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init_mp(&arg.mp);
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arg.mp.callback = file_mdu;
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arg.mp.openflags = O_RDONLY;
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arg.mp.dirCallback = dir_mdu;
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arg.mp.arg = (void *) &arg;
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arg.mp.lookupflags = ACCEPT_PLAIN | ACCEPT_DIR | DO_OPEN_DIRS | NO_DOTS;
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exit(main_loop(&arg.mp, argv + optind, argc - optind));
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}
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