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/* Copyright 1986-1992 Emmet P. Gray.
* Copyright 1996-2002,2005,2008,2009 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/>.
*
* mdel.c
* Delete an MSDOS file
*
*/
#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "stream.h"
#include "mainloop.h"
#include "fs.h"
#include "file.h"
#include "file_name.h"
typedef struct Arg_t {
int deltype;
int verbose;
} Arg_t;
/**
* Wiped the given entry
*/
void wipeEntry(direntry_t *entry)
{
direntry_t longNameEntry;
int i;
initializeDirentry(&longNameEntry, entry->Dir);
for(i=entry->beginSlot; i< entry->endSlot; i++) {
int error;
longNameEntry.entry=i;
dir_read(&longNameEntry, &error);
if(error)
break;
longNameEntry.dir.name[0] = (char) DELMARK;
dir_write(&longNameEntry);
}
entry->dir.name[0] = (char) DELMARK;
dir_write(entry);
}
static int del_entry(direntry_t *entry, MainParam_t *mp)
{
Arg_t *arg=(Arg_t *) mp->arg;
if(got_signal)
return ERROR_ONE;
if(entry->entry == -3) {
fprintf(stderr, "Cannot remove root directory\n");
return ERROR_ONE;
}
if (arg->verbose) {
fprintf(stderr,"Removing ");
fprintPwd(stderr, entry,0);
fputc('\n', stderr);
}
if (entry->dir.attr & (ATTR_READONLY | ATTR_SYSTEM)) {
char tmp[4*MAX_VNAMELEN+1];
wchar_to_native(entry->name,tmp,MAX_VNAMELEN);
if (ask_confirmation("%s: \"%s\" is read only, erase anyway (y/n) ? ",
progname, tmp))
return ERROR_ONE;
}
if (fatFreeWithDirentry(entry))
return ERROR_ONE;
wipeEntry(entry);
return GOT_ONE;
}
static int del_file(direntry_t *entry, MainParam_t *mp)
{
char shortname[13];
direntry_t subEntry;
Stream_t *SubDir;
Arg_t *arg = (Arg_t *) mp->arg;
MainParam_t sonmp;
int ret;
int r;
sonmp = *mp;
sonmp.arg = mp->arg;
r = 0;
if (IS_DIR(entry)){
/* a directory */
SubDir = OpenFileByDirentry(entry);
initializeDirentry(&subEntry, SubDir);
ret = 0;
while((r=vfat_lookup(&subEntry, "*", 1,
ACCEPT_DIR | ACCEPT_PLAIN,
shortname, NULL)) == 0 ){
if(shortname[0] != DELMARK &&
shortname[0] &&
shortname[0] != '.' ){
if(arg->deltype != 2){
fprintf(stderr,
"Directory ");
fprintPwd(stderr, entry,0);
fprintf(stderr," non empty\n");
ret = ERROR_ONE;
break;
}
if(got_signal) {
ret = ERROR_ONE;
break;
}
ret = del_file(&subEntry, &sonmp);
if( ret & ERROR_ONE)
break;
ret = 0;
}
}
FREE(&SubDir);
if (r == -2)
return ERROR_ONE;
if(ret)
return ret;
}
return del_entry(entry, mp);
}
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 [-v] msdosfile [msdosfiles...]\n", progname);
exit(ret);
}
void mdel(int argc, char **argv, int deltype)
{
Arg_t arg;
MainParam_t mp;
int c,i;
arg.verbose = 0;
if(helpFlag(argc, argv))
usage(0);
while ((c = getopt(argc, argv, "i:vh")) != EOF) {
switch (c) {
case 'i':
set_cmd_line_image(optarg);
break;
case 'v':
arg.verbose = 1;
break;
case 'h':
usage(0);
default:
usage(1);
}
}
if(argc == optind)
usage(1);
init_mp(&mp);
mp.callback = del_file;
mp.arg = (void *) &arg;
mp.openflags = O_RDWR;
arg.deltype = deltype;
switch(deltype){
case 0:
mp.lookupflags = ACCEPT_PLAIN; /* mdel */
break;
case 1:
mp.lookupflags = ACCEPT_DIR; /* mrd */
break;
case 2:
mp.lookupflags = ACCEPT_DIR | ACCEPT_PLAIN; /* mdeltree */
break;
}
mp.lookupflags |= NO_DOTS;
for(i=optind;i<argc;i++) {
int b,l;
if(argv[i][0] && argv[i][1] == ':')
b = 2;
else
b = 0;
l = strlen(argv[i]+b);
if(l > 1 && argv[i][b+l-1] == '/')
argv[i][b+l-1] = '\0';
}
exit(main_loop(&mp, argv + optind, argc - optind));
}
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