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/*
Licensed under the GNU Public License.
Copyright (C) 1998-2009 by Thomas M. Vier, Jr. All Rights Reserved.
wipe is free software.
See LICENSE for more information.
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 2 of the License, 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 "config.h"
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#ifdef STAT_MACROS_BROKEN
/* just in case, so we don't unlink a directory,
we don't currently handle broken stat macros */
# define unlink(x) remove(x)
#endif
#ifndef HAVE_UNLINK
# define unlink(x) remove(x)
#endif
#include "std.h"
#include "percent.h"
#include "file.h"
#include "dir.h"
#include "main.h"
#include "wipe.h"
#include "blkdev.h"
#include "prompt.h"
extern char *argvzero;
extern struct opt_s options;
/*
prompt_destroy -- prompt user before destroying target
*/
public void prompt_destroy(struct file_s *f, const int perm)
{
int permdenied;
char prompt[4];
#ifdef SANITY
if (!S_ISBLK(f->st.st_mode) && !S_ISREG(f->st.st_mode))
{
fprintf(stderr, "\r%s: prompt_destroy: not a file or block dev, `%s' mode %o\n",
argvzero, f->name, f->st.st_mode);
abort();
}
#endif
if (options.force) goto destroy;
permdenied = access(f->name, perm);
if (options.interactive) /* force overrides interaction */
{
prompt[0] = 0; /* clear prompt */
if (!permdenied)
{
while (1)
{
switch (f->st.st_mode & S_IFMT)
{
case S_IFBLK:
printf("\r%s: destroy block device `%s'? ", argvzero, f->name);
break;
case S_IFCHR:
printf("\r%s: destory character device `%s'? ", argvzero, f->name);
break;
default:
printf("\r%s: destroy file `%s'? ", argvzero, f->name);
break;
}
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto destroy;
if (prompt[0] == 'n' || prompt[0] == 'N') return;
}
}
else /* perm denied */
{
while (1)
{
switch (f->st.st_mode & S_IFMT)
{
case S_IFBLK:
printf("\r%s: destroy block device `%s', "
"overriding mode %04o? ",
argvzero, f->name, (unsigned int) f->st.st_mode & 07777);
break;
default:
printf("\r%s: destroy file `%s', "
"overriding mode %04o? ",
argvzero, f->name, (unsigned int) f->st.st_mode & 07777);
break;
}
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto destroy;
if (prompt[0] == 'n' || prompt[0] == 'N') return;
}
}
}
destroy:
switch (f->st.st_mode & S_IFMT)
{
case S_IFBLK:
options.delete = 0;
destroy_blkdev(f); return;
break;
case S_IFCHR:
options.delete = 0;
destroy_file(f); return;
break;
case S_IFREG:
destroy_file(f); return;
break;
default:
abort();
}
}
/*
prompt_unlink -- prompt for removal of non-wiped files
*/
public void prompt_unlink(const char name[], const char type[], const int perm, const mode_t mode)
{
int permdenied;
char prompt[4];
if (!options.delete) return;
if (!options.rmspcl)
{
if (options.verbose)
fprintf(stderr, "\r%s: `%s' is a %s -- skipping unlink\n", argvzero, name, type);
return;
}
if (options.force) goto unlink;
permdenied = access(name, perm);
if (options.interactive)
{
prompt[0] = 0; /* clear prompt */
if (!permdenied)
{
while (1)
{
printf("\r%s: remove %s `%s'? ",
argvzero, type, name);
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto unlink;
if (prompt[0] == 'n' || prompt[0] == 'N') return; /* skip to next file */
}
}
else /* permdenied */
{
while (1)
{
printf("\r%s: remove %s `%s', "
"overriding mode %04o? ",
argvzero, type, name, (unsigned int) mode & 07777);
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto unlink;
if (prompt[0] == 'n' || prompt[0] == 'N') return;
}
}
}
unlink:
if (unlink(name))
{
if (options.verbose)
{
fprintf(stderr, "\r%s: cannot remove %s `%s': %s\n",
argvzero, type, name, strerror(errno));
}
}
}
/*
prompt_recursion -- prompt for directory recursion
*/
public void prompt_recursion(const char name[], const int perm, const mode_t mode)
{
int permdenied;
char prompt[4];
if (!options.recursion)
{
fprintf(stderr, "\r%s: `%s' is a directory -- skipping\n", argvzero, name);
return;
}
#ifdef SANITY
if (!S_ISDIR(mode))
{
fprintf(stderr, "\r%s: prompt_recursion: not a directory, `%s' mode %o\n",
argvzero, name, mode);
abort();
}
#endif
if (options.force) goto recurse;
permdenied = access(name, perm);
if (options.interactive)
{
prompt[0] = 0; /* clear prompt */
if (!permdenied)
{
while (1)
{
printf("\r%s: destroy files in `%s'? ",
argvzero, name);
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto recurse;
if (prompt[0] == 'n' || prompt[0] == 'N') return; /* skip to next file */
}
}
else /* permdenied */
{
while (1)
{
printf("\r%s: remove files in `%s', "
"overriding mode %04o? ",
argvzero, name, (unsigned int) mode & 07777);
fgets(prompt, sizeof(prompt), stdin);
if (prompt[0] == 'y' || prompt[0] == 'Y') goto recurse;
if (prompt[0] == 'n' || prompt[0] == 'N') return;
}
}
}
recurse:
drill_down(name);
}
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