xref: /freebsd/crypto/krb5/src/lib/rpc/svc_run.c (revision b670c9bafc0e31c7609969bf374b2e80bdc00211)
1 /* lib/rpc/svc_run.c */
2 /*
3  * Copyright (c) 2010, Oracle America, Inc.
4  *
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  *     * Redistributions of source code must retain the above copyright
11  *       notice, this list of conditions and the following disclaimer.
12  *
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *
18  *     * Neither the name of the "Oracle America, Inc." nor the names of
19  *       its contributors may be used to endorse or promote products
20  *       derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
23  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
25  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
28  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 /*
36  * This is the rpc server side idle loop
37  * Wait for input, call server program.
38  */
39 
40 #include <gssrpc/rpc.h>
41 #include <errno.h>
42 
43 extern int svc_maxfd;
44 
45 void
46 svc_run(void)
47 {
48 #ifdef FD_SETSIZE
49 	fd_set readfds;
50 #else
51 	int readfds;
52 #endif /* def FD_SETSIZE */
53 
54 	for (;;) {
55 #ifdef FD_SETSIZE
56 		readfds = svc_fdset;
57 #else
58 		readfds = svc_fds;
59 #endif /* def FD_SETSIZE */
60 		switch (select(svc_maxfd + 1, &readfds, (fd_set *)0,
61 			       (fd_set *)0, (struct timeval *)0)) {
62 		case -1:
63 			if (errno == EINTR) {
64 				continue;
65 			}
66 			perror("svc_run: - select failed");
67 			return;
68 		case 0:
69 			continue;
70 		default:
71 			svc_getreqset(&readfds);
72 		}
73 	}
74 }
75