1 /*
2  * Copyright (c) 2018, 2019 Ori Bernstein <ori@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 /* IANA assigned */
18 #define GOT_DEFAULT_GIT_PORT		9418
19 #define GOT_DEFAULT_GIT_PORT_STR	"9418"
20 
21 #ifndef GOT_FETCH_PATH_SSH
22 #define GOT_FETCH_PATH_SSH	"/usr/bin/ssh"
23 #endif
24 
25 #define GOT_FETCH_DEFAULT_REMOTE_NAME	"origin"
26 
27 #define GOT_FETCH_PKTMAX	65536
28 
29 /*
30  * Attempt to parse a URI into the following parts:
31  * A protocol scheme, hostname, port number (as a string), path on server,
32  * and a repository name. If the URI lacks some of this information return
33  * default values where applicable.
34  * The results of this function must be passed to other functions below.
35  * The caller should dispose of the returned values with free(3).
36  */
37 const struct got_error *got_fetch_parse_uri(char **, char **, char **,
38     char **, char **, const char *);
39 
40 /*
41  * Attempt to open a connection to a server using the provided protocol
42  * scheme, hostname port number (as a string) and server-side path.
43  * A verbosity level can be specified; it currently controls the amount
44  * of -v options passed to ssh(1). If the level is -1 ssh(1) will be run
45  * with the -q option.
46  *
47  * If successful return an open file descriptor for the connection which can
48  * be passed to other functions below, and must be disposed of with close(2).
49  *
50  * If an ssh(1) process was started return its PID as well, in which case
51  * the caller should eventually send SIGTERM to the procress and wait for
52  * the process to exit with waitpid(2). Otherwise, return PID -1.
53  */
54 const struct got_error *got_fetch_connect(pid_t *, int *, const char *,
55     const char *, const char *, const char *, int);
56 
57 /* A callback function which gets invoked with progress information to print. */
58 typedef const struct got_error *(*got_fetch_progress_cb)(void *,
59     const char *, off_t, int, int, int, int);
60 
61 /*
62  * Attempt to fetch a packfile from a server. This pack file will contain
63  * objects which that are not yet contained in the provided repository.
64  * Return the hash of the packfile (in form of an object ID) and lists of
65  * references and symbolic references learned from the server.
66  */
67 const struct got_error *got_fetch_pack(struct got_object_id **,
68 	struct got_pathlist_head *, struct got_pathlist_head *, const char *,
69 	int, int, struct got_pathlist_head *, struct got_pathlist_head *,
70 	int, int, int, struct got_repository *, got_fetch_progress_cb, void *);