1 718b3ab0 2018-03-17 stsp /*
 2 718b3ab0 2018-03-17 stsp  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
 3 718b3ab0 2018-03-17 stsp  *
 4 718b3ab0 2018-03-17 stsp  * Permission to use, copy, modify, and distribute this software for any
 5 718b3ab0 2018-03-17 stsp  * purpose with or without fee is hereby granted, provided that the above
 6 718b3ab0 2018-03-17 stsp  * copyright notice and this permission notice appear in all copies.
 7 718b3ab0 2018-03-17 stsp  *
 8 718b3ab0 2018-03-17 stsp  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9 718b3ab0 2018-03-17 stsp  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 718b3ab0 2018-03-17 stsp  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 718b3ab0 2018-03-17 stsp  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 718b3ab0 2018-03-17 stsp  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 718b3ab0 2018-03-17 stsp  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 718b3ab0 2018-03-17 stsp  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 718b3ab0 2018-03-17 stsp  */
16 718b3ab0 2018-03-17 stsp 
17 718b3ab0 2018-03-17 stsp struct got_zstream_buf {
18 718b3ab0 2018-03-17 stsp 	z_stream z;
19 718b3ab0 2018-03-17 stsp 	char *inbuf;
20 718b3ab0 2018-03-17 stsp 	size_t inlen;
21 718b3ab0 2018-03-17 stsp 	char *outbuf;
22 718b3ab0 2018-03-17 stsp 	size_t outlen;
23 718b3ab0 2018-03-17 stsp 	int flags;
24 718b3ab0 2018-03-17 stsp #define GOT_ZSTREAM_F_HAVE_MORE		0x01
25 718b3ab0 2018-03-17 stsp #define GOT_ZSTREAM_F_OWN_OUTBUF	0x02
26 718b3ab0 2018-03-17 stsp };
27 718b3ab0 2018-03-17 stsp 
28 718b3ab0 2018-03-17 stsp #define GOT_ZSTREAM_BUFSIZE		8192
29 718b3ab0 2018-03-17 stsp 
30 718b3ab0 2018-03-17 stsp const struct got_error *got_inflate_init(struct got_zstream_buf *, uint8_t *,
31 718b3ab0 2018-03-17 stsp     size_t);
32 718b3ab0 2018-03-17 stsp const struct got_error *got_inflate_read(struct got_zstream_buf *, FILE *,
33 718b3ab0 2018-03-17 stsp     size_t *);
34 962916a2 2018-04-24 stsp const struct got_error *got_inflate_read_fd(struct got_zstream_buf *, int,
35 962916a2 2018-04-24 stsp     size_t *);
36 718b3ab0 2018-03-17 stsp void got_inflate_end(struct got_zstream_buf *);
37 718b3ab0 2018-03-17 stsp const struct got_error *got_inflate_to_mem(uint8_t **, size_t *, FILE *);
38 8b2180d4 2018-04-26 stsp const struct got_error *got_inflate_to_mem_fd(uint8_t **, size_t *, int);
39 718b3ab0 2018-03-17 stsp const struct got_error *got_inflate_to_file(size_t *, FILE *, FILE *);
40 8b2180d4 2018-04-26 stsp const struct got_error *got_inflate_to_file_fd(size_t *, int, FILE *);
41 8b2180d4 2018-04-26 stsp const struct got_error *got_inflate_to_fd(size_t *, FILE *, int);