/*-

 * Copyright (c) 2003-2007 Tim Kientzle

 * 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.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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 "archive_platform.h"

__FBSDID("$FreeBSD: head/lib/libarchive/archive_entry_xattr.c 201096 2009-12-28 02:41:27Z kientzle $");

#ifdef HAVE_SYS_STAT_H

#include <sys/stat.h>

#endif

#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#ifdef HAVE_LIMITS_H

#include <limits.h>

#endif

#ifdef HAVE_LINUX_FS_H

#include <linux/fs.h>	/* for Linux file flags */

#endif

/*

 * Some Linux distributions have both linux/ext2_fs.h and ext2fs/ext2_fs.h.

 * As the include guards don't agree, the order of include is important.

 */

#ifdef HAVE_LINUX_EXT2_FS_H

#include <linux/ext2_fs.h>	/* for Linux file flags */

#endif

#if defined(HAVE_EXT2FS_EXT2_FS_H) && !defined(__CYGWIN__)

#include <ext2fs/ext2_fs.h>	/* for Linux file flags */

#endif

#include <stddef.h>

#include <stdio.h>

#ifdef HAVE_STDLIB_H

#include <stdlib.h>

#endif

#ifdef HAVE_STRING_H

#include <string.h>

#endif

#ifdef HAVE_WCHAR_H

#include <wchar.h>

#endif

#include "archive.h"

#include "archive_entry.h"

#include "archive_private.h"

#include "archive_entry_private.h"

/*

 * extended attribute handling

 */

void

archive_entry_xattr_clear(struct archive_entry *entry)

{

	struct ae_xattr	*xp;

	while (entry->xattr_head != NULL) {

		xp = entry->xattr_head->next;

		free(entry->xattr_head->name);

		free(entry->xattr_head->value);

		free(entry->xattr_head);

		entry->xattr_head = xp;

	}

	entry->xattr_head = NULL;

}

void

archive_entry_xattr_add_entry(struct archive_entry *entry,

	const char *name, const void *value, size_t size)

{

	struct ae_xattr	*xp;

	if ((xp = (struct ae_xattr *)malloc(sizeof(struct ae_xattr))) == NULL)

		__archive_errx(1, "Out of memory");

	if ((xp->name = strdup(name)) == NULL)

		__archive_errx(1, "Out of memory");

	if ((xp->value = malloc(size)) != NULL) {

		memcpy(xp->value, value, size);

		xp->size = size;

	} else

		xp->size = 0;

	xp->next = entry->xattr_head;

	entry->xattr_head = xp;

}

/*

 * returns number of the extended attribute entries

 */

int

archive_entry_xattr_count(struct archive_entry *entry)

{

	struct ae_xattr *xp;

	int count = 0;

	for (xp = entry->xattr_head; xp != NULL; xp = xp->next)

		count++;

	return count;

}

int

archive_entry_xattr_reset(struct archive_entry * entry)

{

	entry->xattr_p = entry->xattr_head;

	return archive_entry_xattr_count(entry);

}

int

archive_entry_xattr_next(struct archive_entry * entry,

	const char **name, const void **value, size_t *size)

{

	if (entry->xattr_p) {

		*name = entry->xattr_p->name;

		*value = entry->xattr_p->value;

		*size = entry->xattr_p->size;

		entry->xattr_p = entry->xattr_p->next;

		return (ARCHIVE_OK);

	} else {

		*name = NULL;

		*value = NULL;

		*size = (size_t)0;

		return (ARCHIVE_WARN);

	}

}

/*

 * end of xattr handling

 */