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28f7bd66 RS |
1 | /* |
2 | Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2011 | |
3 | ||
4 | This program is free software; you can redistribute it and/or modify | |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 3 of the License, or | |
7 | (at your option) any later version. | |
8 | ||
9 | This program is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | /* Example program using the lowlevel raw broadcast interface. | |
19 | */ | |
20 | ||
21 | #include <stdio.h> | |
22 | #include <unistd.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <poll.h> | |
26 | #include <errno.h> | |
27 | #include <sys/socket.h> | |
28 | #include <netdb.h> | |
29 | #include "libnfs.h" | |
30 | #include "libnfs-raw.h" | |
31 | #include "libnfs-raw-mount.h" | |
32 | #include "libnfs-raw-portmap.h" | |
33 | #include "libnfs-private.h" | |
34 | ||
35 | void pm_cb(struct rpc_context *rpc _U_, int status, void *data, void *private_data _U_) | |
36 | { | |
37 | pmap_call_result *res = (pmap_call_result *)data; | |
38 | struct sockaddr *sin; | |
39 | char hostdd[16]; | |
40 | ||
41 | if (status != 0) { | |
42 | printf("callback for CALLIT failed\n"); | |
43 | exit(10); | |
44 | } | |
45 | ||
46 | sin = rpc_get_recv_sockaddr(rpc); | |
47 | if (sin == NULL) { | |
48 | printf("failed to get sockaddr for received pdu\n"); | |
49 | exit(10); | |
50 | } | |
51 | ||
52 | if (getnameinfo(sin, sizeof(struct sockaddr_in), &hostdd[0], sizeof(hostdd), NULL, 0, NI_NUMERICHOST) < 0) { | |
53 | printf("getnameinfo failed\n"); | |
54 | exit(10); | |
55 | } | |
56 | ||
57 | printf("NFS server at %s\n", hostdd); | |
58 | } | |
59 | ||
60 | int main(int argc _U_, char *argv[] _U_) | |
61 | { | |
62 | struct rpc_context *rpc; | |
63 | struct pollfd pfd; | |
64 | ||
65 | rpc = rpc_init_udp_context(); | |
66 | if (rpc == NULL) { | |
67 | printf("failed to init context\n"); | |
68 | exit(10); | |
69 | } | |
70 | ||
71 | if (rpc_bind_udp(rpc, "0.0.0.0", 0) < 0) { | |
72 | printf("failed to bind to udp %s\n", rpc_get_error(rpc)); | |
73 | exit(10); | |
74 | } | |
75 | ||
76 | if (rpc_set_udp_destination(rpc, "10.1.1.255", 111, 1) < 0) { | |
77 | printf("failed to set udp destination %s\n", rpc_get_error(rpc)); | |
78 | exit(10); | |
79 | } | |
80 | ||
81 | if (rpc_pmap_callit_async(rpc, 100005, 2, 0, NULL, 0, pm_cb, NULL) < 0) { | |
82 | printf("Failed to set up callit function\n"); | |
83 | exit(10); | |
84 | } | |
85 | if (rpc_set_udp_destination(rpc, "10.9.2.255", 111, 1) < 0) { | |
86 | printf("failed to set udp destination %s\n", rpc_get_error(rpc)); | |
87 | exit(10); | |
88 | } | |
89 | ||
90 | if (rpc_pmap_callit_async(rpc, 100005, 2, 0, NULL, 0, pm_cb, NULL) < 0) { | |
91 | printf("Failed to set up callit function\n"); | |
92 | exit(10); | |
93 | } | |
94 | ||
95 | alarm(3); | |
96 | ||
97 | for(;;) { | |
98 | pfd.fd = rpc_get_fd(rpc); | |
99 | pfd.events = rpc_which_events(rpc); | |
100 | ||
101 | if (poll(&pfd, 1, -1) < 0) { | |
102 | printf("Poll failed"); | |
103 | exit(10); | |
104 | } | |
105 | if (rpc_service(rpc, pfd.revents) < 0) { | |
106 | printf("rpc_service failed with %s\n", rpc_get_error(rpc)); | |
107 | break; | |
108 | } | |
109 | } | |
110 | ||
111 | rpc_destroy_context(rpc); | |
112 | rpc=NULL; | |
113 | printf("nfsclient finished\n"); | |
114 | return 0; | |
115 | } |