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/*-
* Copyright (c) 2003-2009 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
* in this position and unchanged.
* 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_read_disk.c 189429 2009-03-06 04:35:31Z kientzle $");
#include "archive.h"
#include "archive_string.h"
#include "archive_entry.h"
#include "archive_private.h"
#include "archive_read_disk_private.h"
static int _archive_read_finish(struct archive *);
static int _archive_read_close(struct archive *);
static const char *trivial_lookup_gname(void *, gid_t gid);
static const char *trivial_lookup_uname(void *, uid_t uid);
static struct archive_vtable *
archive_read_disk_vtable(void)
{
static struct archive_vtable av;
static int inited = 0;
if (!inited) {
av.archive_finish = _archive_read_finish;
av.archive_close = _archive_read_close;
}
return (&av);
}
const char *
archive_read_disk_gname(struct archive *_a, gid_t gid)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
if (a->lookup_gname != NULL)
return ((*a->lookup_gname)(a->lookup_gname_data, gid));
return (NULL);
}
const char *
archive_read_disk_uname(struct archive *_a, uid_t uid)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
if (a->lookup_uname != NULL)
return ((*a->lookup_uname)(a->lookup_uname_data, uid));
return (NULL);
}
int
archive_read_disk_set_gname_lookup(struct archive *_a,
void *private_data,
const char * (*lookup_gname)(void *private, gid_t gid),
void (*cleanup_gname)(void *private))
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
__archive_check_magic(&a->archive, ARCHIVE_READ_DISK_MAGIC,
ARCHIVE_STATE_ANY, "archive_read_disk_set_gname_lookup");
if (a->cleanup_gname != NULL && a->lookup_gname_data != NULL)
(a->cleanup_gname)(a->lookup_gname_data);
a->lookup_gname = lookup_gname;
a->cleanup_gname = cleanup_gname;
a->lookup_gname_data = private_data;
return (ARCHIVE_OK);
}
int
archive_read_disk_set_uname_lookup(struct archive *_a,
void *private_data,
const char * (*lookup_uname)(void *private, uid_t uid),
void (*cleanup_uname)(void *private))
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
__archive_check_magic(&a->archive, ARCHIVE_READ_DISK_MAGIC,
ARCHIVE_STATE_ANY, "archive_read_disk_set_uname_lookup");
if (a->cleanup_uname != NULL && a->lookup_uname_data != NULL)
(a->cleanup_uname)(a->lookup_uname_data);
a->lookup_uname = lookup_uname;
a->cleanup_uname = cleanup_uname;
a->lookup_uname_data = private_data;
return (ARCHIVE_OK);
}
/*
* Create a new archive_read_disk object and initialize it with global state.
*/
struct archive *
archive_read_disk_new(void)
{
struct archive_read_disk *a;
a = (struct archive_read_disk *)malloc(sizeof(*a));
if (a == NULL)
return (NULL);
memset(a, 0, sizeof(*a));
a->archive.magic = ARCHIVE_READ_DISK_MAGIC;
/* We're ready to write a header immediately. */
a->archive.state = ARCHIVE_STATE_HEADER;
a->archive.vtable = archive_read_disk_vtable();
a->lookup_uname = trivial_lookup_uname;
a->lookup_gname = trivial_lookup_gname;
return (&a->archive);
}
static int
_archive_read_finish(struct archive *_a)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
if (a->cleanup_gname != NULL && a->lookup_gname_data != NULL)
(a->cleanup_gname)(a->lookup_gname_data);
if (a->cleanup_uname != NULL && a->lookup_uname_data != NULL)
(a->cleanup_uname)(a->lookup_uname_data);
archive_string_free(&a->archive.error_string);
free(a);
return (ARCHIVE_OK);
}
static int
_archive_read_close(struct archive *_a)
{
(void)_a; /* UNUSED */
return (ARCHIVE_OK);
}
int
archive_read_disk_set_symlink_logical(struct archive *_a)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
a->symlink_mode = 'L';
a->follow_symlinks = 1;
return (ARCHIVE_OK);
}
int
archive_read_disk_set_symlink_physical(struct archive *_a)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
a->symlink_mode = 'P';
a->follow_symlinks = 0;
return (ARCHIVE_OK);
}
int
archive_read_disk_set_symlink_hybrid(struct archive *_a)
{
struct archive_read_disk *a = (struct archive_read_disk *)_a;
a->symlink_mode = 'H';
a->follow_symlinks = 1; /* Follow symlinks initially. */
return (ARCHIVE_OK);
}
/*
* Trivial implementations of gname/uname lookup functions.
* These are normally overridden by the client, but these stub
* versions ensure that we always have something that works.
*/
static const char *
trivial_lookup_gname(void *private_data, gid_t gid)
{
(void)private_data; /* UNUSED */
(void)gid; /* UNUSED */
return (NULL);
}
static const char *
trivial_lookup_uname(void *private_data, uid_t uid)
{
(void)private_data; /* UNUSED */
(void)uid; /* UNUSED */
return (NULL);
}
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