2013-02-09 21:17:57 +04:00
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/*-
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* Copyright (c) 2003-2007 Tim Kientzle
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "archive_platform.h"
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__FBSDID("$FreeBSD$");
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include "archive.h"
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#include "archive_write_private.h"
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struct write_grzip {
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struct archive_write_program_data *pdata;
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};
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static int archive_write_grzip_open(struct archive_write_filter *);
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static int archive_write_grzip_options(struct archive_write_filter *,
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const char *, const char *);
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static int archive_write_grzip_write(struct archive_write_filter *,
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const void *, size_t);
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static int archive_write_grzip_close(struct archive_write_filter *);
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static int archive_write_grzip_free(struct archive_write_filter *);
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int
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archive_write_add_filter_grzip(struct archive *_a)
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{
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struct archive_write_filter *f = __archive_write_allocate_filter(_a);
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struct write_grzip *data;
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archive_check_magic(_a, ARCHIVE_WRITE_MAGIC,
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ARCHIVE_STATE_NEW, "archive_write_add_filter_grzip");
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data = calloc(1, sizeof(*data));
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if (data == NULL) {
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archive_set_error(_a, ENOMEM, "Can't allocate memory");
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return (ARCHIVE_FATAL);
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}
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2016-04-30 20:26:35 +03:00
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data->pdata = __archive_write_program_allocate("grzip");
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2013-02-09 21:17:57 +04:00
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if (data->pdata == NULL) {
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free(data);
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archive_set_error(_a, ENOMEM, "Can't allocate memory");
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return (ARCHIVE_FATAL);
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}
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f->name = "grzip";
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f->code = ARCHIVE_FILTER_GRZIP;
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f->data = data;
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f->open = archive_write_grzip_open;
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f->options = archive_write_grzip_options;
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f->write = archive_write_grzip_write;
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f->close = archive_write_grzip_close;
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f->free = archive_write_grzip_free;
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/* Note: This filter always uses an external program, so we
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* return "warn" to inform of the fact. */
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archive_set_error(_a, ARCHIVE_ERRNO_MISC,
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"Using external grzip program for grzip compression");
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return (ARCHIVE_WARN);
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}
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static int
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archive_write_grzip_options(struct archive_write_filter *f, const char *key,
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const char *value)
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{
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(void)f; /* UNUSED */
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(void)key; /* UNUSED */
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(void)value; /* UNUSED */
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/* Note: The "warn" return is just to inform the options
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* supervisor that we didn't handle it. It will generate
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* a suitable error if no one used this option. */
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return (ARCHIVE_WARN);
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}
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static int
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archive_write_grzip_open(struct archive_write_filter *f)
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{
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struct write_grzip *data = (struct write_grzip *)f->data;
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return __archive_write_program_open(f, data->pdata, "grzip");
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}
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static int
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archive_write_grzip_write(struct archive_write_filter *f,
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const void *buff, size_t length)
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{
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struct write_grzip *data = (struct write_grzip *)f->data;
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return __archive_write_program_write(f, data->pdata, buff, length);
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}
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static int
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archive_write_grzip_close(struct archive_write_filter *f)
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{
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struct write_grzip *data = (struct write_grzip *)f->data;
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return __archive_write_program_close(f, data->pdata);
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}
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static int
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archive_write_grzip_free(struct archive_write_filter *f)
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{
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struct write_grzip *data = (struct write_grzip *)f->data;
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__archive_write_program_free(data->pdata);
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free(data);
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return (ARCHIVE_OK);
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}
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