t_rpc.c revision 276478 
1/*	$NetBSD: t_rpc.c,v 1.3 2013/02/28 15:56:53 christos Exp $	*/
2
3#include <sys/cdefs.h>
4__RCSID("$NetBSD: t_rpc.c,v 1.3 2013/02/28 15:56:53 christos Exp $");
5
6#include <sys/types.h>
7#include <sys/socket.h>
8#include <rpc/rpc.h>
9#include <stdlib.h>
10#include <err.h>
11#include <netdb.h>
12#include <stdio.h>
13#include <unistd.h>
14
15
16#ifndef TEST
17#include <atf-c.h>
18
19#define ERRX(ev, msg, ...)	ATF_REQUIRE_MSG(0, msg, __VA_ARGS__)
20
21#define SKIPX(ev, msg, ...)	do {			\
22	atf_tc_skip(msg, __VA_ARGS__);			\
23	return;						\
24} while(/*CONSTCOND*/0)
25
26#else
27#define ERRX(ev, msg, ...)	errx(ev, msg, __VA_ARGS__)
28#define SKIPX(ev, msg, ...)	errx(ev, msg, __VA_ARGS__)
29#endif
30
31
32#define RPCBPROC_NULL 0
33
34static int
35reply(caddr_t replyp, struct netbuf * raddrp, struct netconfig * nconf)
36{
37	char host[NI_MAXHOST];
38	struct sockaddr *sock = raddrp->buf;
39	int error;
40
41
42	error = getnameinfo(sock, sock->sa_len, host, sizeof(host), NULL, 0, 0);
43	if (error)
44		warnx("Cannot resolve address (%s)", gai_strerror(error));
45	else
46		printf("response from: %s\n", host);
47	return 0;
48}
49
50#ifdef __FreeBSD__
51#define	__rpc_control	rpc_control
52#endif
53
54extern bool __rpc_control(int, void *);
55
56static void
57onehost(const char *host, const char *transp)
58{
59	CLIENT         *clnt;
60	struct netbuf   addr;
61	struct timeval  tv;
62
63	/*
64	 * Magic!
65	 */
66	tv.tv_sec = 0;
67	tv.tv_usec = 500000;
68#define CLCR_SET_RPCB_TIMEOUT   2
69	__rpc_control(CLCR_SET_RPCB_TIMEOUT, &tv);
70
71	if ((clnt = clnt_create(host, RPCBPROG, RPCBVERS, transp)) == NULL)
72		SKIPX(EXIT_FAILURE, "clnt_create (%s)", clnt_spcreateerror(""));
73
74	tv.tv_sec = 1;
75	tv.tv_usec = 0;
76	if (clnt_call(clnt, RPCBPROC_NULL, xdr_void, NULL, xdr_void, NULL, tv)
77	    != RPC_SUCCESS)
78		ERRX(EXIT_FAILURE, "clnt_call (%s)", clnt_sperror(clnt, ""));
79	clnt_control(clnt, CLGET_SVC_ADDR, (char *) &addr);
80	reply(NULL, &addr, NULL);
81}
82
83#ifdef TEST
84static void
85allhosts(void)
86{
87	enum clnt_stat  clnt_stat;
88
89	clnt_stat = rpc_broadcast(RPCBPROG, RPCBVERS, RPCBPROC_NULL,
90	    (xdrproc_t)xdr_void, NULL, (xdrproc_t)xdr_void,
91	    NULL, (resultproc_t)reply, transp);
92	if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
93		ERRX(EXIT_FAILURE, "%s", clnt_sperrno(clnt_stat));
94}
95
96int
97main(int argc, char *argv[])
98{
99	int             ch;
100	const char     *transp = "udp";
101
102
103	while ((ch = getopt(argc, argv, "ut")) != -1)
104		switch (ch) {
105		case 't':
106			transp = "tcp";
107			break;
108		case 'u':
109			transp = "udp";
110			break;
111		default:
112			fprintf(stderr, "Usage: %s -[t|u] [<hostname>...]\n",
113			    getprogname());
114			return EXIT_FAILURE;
115		}
116
117	if (argc == optind)
118		allhosts();
119	else
120		for (; optind < argc; optind++)
121			onehost(argv[optind], transp);
122
123	return EXIT_SUCCESS;
124}
125
126#else
127
128ATF_TC(get_svc_addr_tcp);
129ATF_TC_HEAD(get_svc_addr_tcp, tc)
130{
131	atf_tc_set_md_var(tc, "descr", "Checks CLGET_SVC_ADDR for tcp");
132
133}
134
135ATF_TC_BODY(get_svc_addr_tcp, tc)
136{
137	onehost("localhost", "tcp");
138
139}
140
141ATF_TC(get_svc_addr_udp);
142ATF_TC_HEAD(get_svc_addr_udp, tc)
143{
144	atf_tc_set_md_var(tc, "descr", "Checks CLGET_SVC_ADDR for udp");
145}
146
147ATF_TC_BODY(get_svc_addr_udp, tc)
148{
149	onehost("localhost", "udp");
150
151}
152
153ATF_TP_ADD_TCS(tp)
154{
155	ATF_TP_ADD_TC(tp, get_svc_addr_udp);
156	ATF_TP_ADD_TC(tp, get_svc_addr_tcp);
157
158	return atf_no_error();
159}
160
161#endif
162