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/*
* Copyright (c) 1991 - 1994, Julianne Frances Haugh
* Copyright (c) 1996 - 2001, Marek Michałkiewicz
* Copyright (c) 2003 - 2006, Tomasz Kłoczko
* Copyright (c) 2007 - 2010, Nicolas François
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the copyright holders or contributors may not be used to
* endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <config.h>
#ident "$Id$"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <unistd.h>
#include "prototypes.h"
#include "defines.h"
/*
* remove_tree - delete a directory tree
*
* remove_tree() walks a directory tree and deletes all the files
* and directories.
* At the end, it deletes the root directory itself.
*/
int remove_tree (const char *root, bool remove_root)
{
char *new_name = NULL;
int err = 0;
struct DIRECT *ent;
struct stat sb;
DIR *dir;
/*
* Open the source directory and read each entry. Every file
* entry in the directory is copied with the UID and GID set
* to the provided values. As an added security feature only
* regular files (and directories ...) are copied, and no file
* is made set-ID.
*/
dir = opendir (root);
if (NULL == dir) {
return -1;
}
while ((ent = readdir (dir))) {
size_t new_len = strlen (root) + strlen (ent->d_name) + 2;
/*
* Skip the "." and ".." entries
*/
if (strcmp (ent->d_name, ".") == 0 ||
strcmp (ent->d_name, "..") == 0) {
continue;
}
/*
* Make the filename for the current entry.
*/
free (new_name);
new_name = (char *) malloc (new_len);
if (NULL == new_name) {
err = -1;
break;
}
(void) snprintf (new_name, new_len, "%s/%s", root, ent->d_name);
if (LSTAT (new_name, &sb) == -1) {
continue;
}
if (S_ISDIR (sb.st_mode)) {
/*
* Recursively delete this directory.
*/
if (remove_tree (new_name, true) != 0) {
err = -1;
break;
}
} else {
/*
* Delete the file.
*/
if (unlink (new_name) != 0) {
err = -1;
break;
}
}
}
if (NULL != new_name) {
free (new_name);
}
(void) closedir (dir);
if (remove_root && (0 == err)) {
if (rmdir (root) != 0) {
err = -1;
}
}
return err;
}
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