1 /*
2  * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 struct got_object_id {
18 	u_int8_t sha1[SHA1_DIGEST_LENGTH];
19 };
20 
21 struct got_object {
22 	int type;
23 	int flags;
24 #define GOT_OBJ_FLAG_PACKED		0x01
25 #define GOT_OBJ_FLAG_DELTIFIED		0x02
26 
27 	size_t hdrlen;
28 	size_t size;
29 	struct got_object_id id;
30 
31 	char *path_packfile;	/* if packed */
32 	off_t pack_offset;	/* if packed */
33 	struct got_delta_chain deltas; /* if deltified */
34 };
35 
36 struct got_blob_object {
37 	FILE *f;
38 	struct got_zstream_buf zb;
39 	size_t hdrlen;
40 	size_t blocksize;
41 	uint8_t *read_buf;
42 	int flags;
43 #define GOT_BLOB_F_COMPRESSED	0x01
44 	struct got_object_id id;
45 };