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
45 void
svc_run(void)46 svc_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