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sunrpc: Always obtain AF_INET addresses from NSS [BZ #20964]
[thirdparty/glibc.git] / sunrpc / svc_run.c
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28f540f4 1/*
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2 * Copyright (c) 2010, Oracle America, Inc.
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are
5 * met:
c4029823 6 *
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7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 * * Neither the name of the "Oracle America, Inc." nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
c4029823 16 *
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17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
24 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
c4029823 29 *
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30 * This is the rpc server side idle loop
31 * Wait for input, call server program.
32 */
bdb04ee8 33
e7fd8a39 34#include <errno.h>
bdb04ee8 35#include <unistd.h>
4360eafd 36#include <libintl.h>
bdb04ee8 37#include <sys/poll.h>
28f540f4 38#include <rpc/rpc.h>
28f540f4 39
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40/* This function can be used as a signal handler to terminate the
41 server loop. */
42void
43svc_exit (void)
44{
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45 free (svc_pollfd);
46 svc_pollfd = NULL;
47 svc_max_pollfd = 0;
1f07e617 48}
021db4be 49libc_hidden_nolink_sunrpc (svc_exit, GLIBC_2_0)
1f07e617 50
28f540f4 51void
e7fd8a39 52svc_run (void)
28f540f4 53{
bdb04ee8 54 int i;
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55 struct pollfd *my_pollfd = NULL;
56 int last_max_pollfd = 0;
1f07e617 57
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58 for (;;)
59 {
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60 int max_pollfd = svc_max_pollfd;
61 if (max_pollfd == 0 && svc_pollfd == NULL)
62 break;
bdb04ee8 63
11bf311e 64 if (last_max_pollfd != max_pollfd)
32c075e1 65 {
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66 struct pollfd *new_pollfd
67 = realloc (my_pollfd, sizeof (struct pollfd) * max_pollfd);
68
69 if (new_pollfd == NULL)
70 {
71 perror (_("svc_run: - out of memory"));
72 break;
73 }
74
75 my_pollfd = new_pollfd;
76 last_max_pollfd = max_pollfd;
b1a758f3 77 }
1f07e617 78
11bf311e 79 for (i = 0; i < max_pollfd; ++i)
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80 {
81 my_pollfd[i].fd = svc_pollfd[i].fd;
82 my_pollfd[i].events = svc_pollfd[i].events;
83 my_pollfd[i].revents = 0;
84 }
85
11bf311e 86 switch (i = __poll (my_pollfd, max_pollfd, -1))
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87 {
88 case -1:
89 if (errno == EINTR)
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90 continue;
91 perror (_("svc_run: - poll failed"));
11bf311e 92 break;
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93 case 0:
94 continue;
95 default:
7b57bfe5 96 svc_getreq_poll (my_pollfd, i);
11bf311e 97 continue;
28f540f4 98 }
11bf311e 99 break;
e7fd8a39 100 }
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101
102 free (my_pollfd);
28f540f4 103}
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104#ifdef EXPORT_RPC_SYMBOLS
105libc_hidden_def (svc_run)
106#else
021db4be 107libc_hidden_nolink_sunrpc (svc_run, GLIBC_2_0)
4df46dbd 108#endif