xref: /freebsd/contrib/lib9p/example/server.c (revision 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc)
1 /*
2  * Copyright 2016 Jakub Klama <jceel@FreeBSD.org>
3  * All rights reserved
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted providing that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
23  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24  * POSSIBILITY OF SUCH DAMAGE.
25  *
26  */
27 
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <fcntl.h>
31 #include <err.h>
32 #include <unistd.h>
33 #include "../lib9p.h"
34 #include "../backend/fs.h"
35 #include "../transport/socket.h"
36 
37 int
38 main(int argc, char **argv)
39 {
40 	struct l9p_backend *fs_backend;
41 	struct l9p_server *server;
42 	char *host = "0.0.0.0";
43 	char *port = "564";
44 	char *path;
45 	bool ro = false;
46 	int rootfd;
47 	int opt;
48 
49 	while ((opt = getopt(argc, argv, "h:p:r")) != -1) {
50 		switch (opt) {
51 		case 'h':
52 			host = optarg;
53 			break;
54 		case 'p':
55 			port = optarg;
56 			break;
57 		case 'r':
58 			ro = true;
59 			break;
60 		case '?':
61 		default:
62 			goto usage;
63 		}
64 	}
65 
66 	if (optind >= argc) {
67 usage:
68 		errx(1, "Usage: server [-h <host>] [-p <port>] [-r] <path>");
69 	}
70 
71 	path = argv[optind];
72 	rootfd = open(path, O_DIRECTORY);
73 
74 	if (rootfd < 0)
75 		err(1, "cannot open root directory");
76 
77 	if (l9p_backend_fs_init(&fs_backend, rootfd, ro) != 0)
78 		err(1, "cannot init backend");
79 
80 	if (l9p_server_init(&server, fs_backend) != 0)
81 		err(1, "cannot create server");
82 
83 	server->ls_max_version = L9P_2000L;
84 	if (l9p_start_server(server, host, port))
85 		err(1, "l9p_start_server() failed");
86 
87 	/* XXX - we never get here, l9p_start_server does not return */
88 	exit(0);
89 }
90