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e5d1fbb Feb 23, 2013
126 lines (107 sloc) 3.65 KB
/*-
* Copyright (c) 2013 Marek Kubica
* 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"
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include "archive_entry.h"
#include "archive_write_private.h"
static ssize_t archive_write_raw_data(struct archive_write *,
const void *buff, size_t s);
static int archive_write_raw_free(struct archive_write *);
static int archive_write_raw_header(struct archive_write *,
struct archive_entry *);
struct raw {
int entries_written;
};
/*
* Set output format to 'raw' format.
*/
int
archive_write_set_format_raw(struct archive *_a)
{
struct archive_write *a = (struct archive_write *)_a;
struct raw *raw;
archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
ARCHIVE_STATE_NEW, "archive_write_set_format_raw");
/* If someone else was already registered, unregister them. */
if (a->format_free != NULL)
(a->format_free)(a);
raw = (struct raw *)calloc(1, sizeof(*raw));
if (raw == NULL) {
archive_set_error(&a->archive, ENOMEM, "Can't allocate raw data");
return (ARCHIVE_FATAL);
}
raw->entries_written = 0;
a->format_data = raw;
a->format_name = "raw";
/* no options exist for this format */
a->format_options = NULL;
a->format_write_header = archive_write_raw_header;
a->format_write_data = archive_write_raw_data;
a->format_finish_entry = NULL;
/* nothing needs to be done on closing */
a->format_close = NULL;
a->format_free = archive_write_raw_free;
a->archive.archive_format = ARCHIVE_FORMAT_RAW;
a->archive.archive_format_name = "RAW";
return (ARCHIVE_OK);
}
static int
archive_write_raw_header(struct archive_write *a, struct archive_entry *entry)
{
struct raw *raw = (struct raw *)a->format_data;
if (archive_entry_filetype(entry) != AE_IFREG) {
archive_set_error(&a->archive, ERANGE,
"Raw format only supports filetype AE_IFREG");
return (ARCHIVE_FATAL);
}
if (raw->entries_written > 0) {
archive_set_error(&a->archive, ERANGE,
"Raw format only supports one entry per archive");
return (ARCHIVE_FATAL);
}
raw->entries_written++;
return (ARCHIVE_OK);
}
static ssize_t
archive_write_raw_data(struct archive_write *a, const void *buff, size_t s)
{
int ret;
ret = __archive_write_output(a, buff, s);
if (ret >= 0)
return (s);
else
return (ret);
}
static int
archive_write_raw_free(struct archive_write *a)
{
struct raw *raw;
raw = (struct raw *)a->format_data;
free(raw);
a->format_data = NULL;
return (ARCHIVE_OK);
}