/* gzuncat.h - read individual members from concatenated gzip files
 *
 * Copyright (c) 2015 Carnegie Mellon University.  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 "Carnegie Mellon University" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For permission or any legal
 *    details, please contact
 *      Carnegie Mellon University
 *      Center for Technology Transfer and Enterprise Creation
 *      4615 Forbes Avenue
 *      Suite 302
 *      Pittsburgh, PA  15213
 *      (412) 268-7393, fax: (412) 268-7395
 *      innovation@andrew.cmu.edu
 *
 * 4. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by Computing Services
 *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
 *
 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#ifndef GZUNCAT_H
#define GZUNCAT_H

#include <config.h>

#include <sys/types.h>

#include <stddef.h>

struct gzuncat;

struct gzuncat *gzuc_new(int fd);
void gzuc_free(struct gzuncat **gzp);

int gzuc_set_bufsize(struct gzuncat *gz, size_t size);
int gzuc_member_start_from(struct gzuncat *gz, off_t offset);
int gzuc_member_start(struct gzuncat *gz);
int gzuc_member_end(struct gzuncat *gz, off_t *offset);
int gzuc_member_eof(struct gzuncat *gz);
int gzuc_eof(struct gzuncat *gz);
ssize_t gzuc_read(struct gzuncat *gz, void *buf, size_t count);
int gzuc_skip(struct gzuncat *gz, size_t len);
int gzuc_seekto(struct gzuncat *gz, size_t pos);
off_t gzuc_member_offset(struct gzuncat *gz);
size_t gzuc_member_bytes_read(struct gzuncat *gz);

#endif
