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/* Copyright 1997,2000-2002,2009 Alain Knaff.
* This file is part of mtools.
*
* Mtools 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 3 of the License, or
* (at your option) any later version.
*
* Mtools 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 Mtools. If not, see <http://www.gnu.org/licenses/>.
*
* mdu.c:
* Display the space occupied by an MSDOS directory
*/
#include "sysincludes.h"
#include "msdos.h"
#include "vfat.h"
#include "mtools.h"
#include "file.h"
#include "mainloop.h"
#include "fs.h"
#include "codepage.h"
typedef struct Arg_t {
int all;
int inDir;
int summary;
struct Arg_t *parent;
char *target;
char *path;
unsigned int blocks;
MainParam_t mp;
} Arg_t;
static void usage(int ret) NORETURN;
static void usage(int ret)
{
fprintf(stderr, "Mtools version %s, dated %s\n",
mversion, mdate);
fprintf(stderr, "Usage: %s: msdosdirectory\n",
progname);
exit(ret);
}
static int file_mdu(direntry_t *entry, MainParam_t *mp)
{
unsigned int blocks;
Arg_t * arg = (Arg_t *) (mp->arg);
blocks = countBlocks(entry->Dir,getStart(entry->Dir, &entry->dir));
if(arg->all || !arg->inDir) {
fprintPwd(stdout, entry,0);
printf(" %d\n", blocks);
}
arg->blocks += blocks;
return GOT_ONE;
}
static int dir_mdu(direntry_t *entry, MainParam_t *mp)
{
Arg_t *parentArg = (Arg_t *) (mp->arg);
Arg_t arg;
int ret;
arg = *parentArg;
arg.mp.arg = (void *) &arg;
arg.parent = parentArg;
arg.inDir = 1;
/* account for the space occupied by the directory itself */
if(!isRootDir(entry->Dir)) {
arg.blocks = countBlocks(entry->Dir,
getStart(entry->Dir, &entry->dir));
} else {
arg.blocks = 0;
}
/* recursion */
ret = mp->loop(mp->File, &arg.mp, "*");
if(!arg.summary || !parentArg->inDir) {
fprintPwd(stdout, entry,0);
printf(" %d\n", arg.blocks);
}
arg.parent->blocks += arg.blocks;
return ret;
}
void mdu(int argc, char **argv, int type)
{
Arg_t arg;
int c;
arg.all = 0;
arg.inDir = 0;
arg.summary = 0;
if(helpFlag(argc, argv))
usage(0);
while ((c = getopt(argc, argv, "i:ash")) != EOF) {
switch (c) {
case 'i':
set_cmd_line_image(optarg, 0);
break;
case 'a':
arg.all = 1;
break;
case 's':
arg.summary = 1;
break;
case 'h':
usage(0);
case '?':
usage(1);
}
}
if (optind >= argc)
usage(1);
if(arg.summary && arg.all) {
fprintf(stderr,"-a and -s options are mutually exclusive\n");
usage(1);
}
init_mp(&arg.mp);
arg.mp.callback = file_mdu;
arg.mp.openflags = O_RDONLY;
arg.mp.dirCallback = dir_mdu;
arg.mp.arg = (void *) &arg;
arg.mp.lookupflags = ACCEPT_PLAIN | ACCEPT_DIR | DO_OPEN_DIRS | NO_DOTS;
exit(main_loop(&arg.mp, argv + optind, argc - optind));
}
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