1/*	$OpenBSD: svc_run.c,v 1.25 2015/09/01 17:31:39 deraadt Exp $ */
2
3/*
4 * Copyright (c) 2010, Oracle America, Inc.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 *     * Redistributions of source code must retain the above copyright
11 *       notice, this list of conditions and the following disclaimer.
12 *     * Redistributions in binary form must reproduce the above
13 *       copyright notice, this list of conditions and the following
14 *       disclaimer in the documentation and/or other materials
15 *       provided with the distribution.
16 *     * Neither the name of the "Oracle America, Inc." nor the names of its
17 *       contributors may be used to endorse or promote products derived
18 *       from this software without specific prior written permission.
19 *
20 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/*
35 * This is the rpc server side idle loop
36 * Wait for input, call server program.
37 */
38#include <rpc/rpc.h>
39#include <errno.h>
40#include <unistd.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44
45void
46svc_run(void)
47{
48	struct pollfd *pfd = NULL, *newp;
49	int nready, saved_max_pollfd = 0;
50
51	for (;;) {
52		if (svc_max_pollfd > saved_max_pollfd) {
53			newp = reallocarray(pfd, svc_max_pollfd, sizeof(*pfd));
54			if (newp == NULL) {
55				free(pfd);
56				return;			/* XXX */
57			}
58			saved_max_pollfd = svc_max_pollfd;
59			pfd = newp;
60		}
61		memcpy(pfd, svc_pollfd, sizeof(*pfd) * svc_max_pollfd);
62
63		nready = poll(pfd, svc_max_pollfd, INFTIM);
64		switch (nready) {
65		case -1:
66			if (errno == EINTR)
67				continue;
68			free(pfd);
69			return;					/* XXX */
70		case 0:
71			/* should not happen */
72			continue;
73		default:
74			svc_getreq_poll(pfd, nready);
75		}
76	}
77}
78