xref: /openbsd-src/lib/libc/rpc/svc_run.c (revision a4afd6dad3fba28f80e70208181c06c482259988)
1 /*
2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3  * unrestricted use provided that this legend is included on all tape
4  * media and as a part of the software program in whole or part.  Users
5  * may copy or modify Sun RPC without charge, but are not authorized
6  * to license or distribute it to anyone else except as part of a product or
7  * program developed by the user.
8  *
9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12  *
13  * Sun RPC is provided with no support and without any obligation on the
14  * part of Sun Microsystems, Inc. to assist in its use, correction,
15  * modification or enhancement.
16  *
17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19  * OR ANY PART THEREOF.
20  *
21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22  * or profits or other special, indirect and consequential damages, even if
23  * Sun has been advised of the possibility of such damages.
24  *
25  * Sun Microsystems, Inc.
26  * 2550 Garcia Avenue
27  * Mountain View, California  94043
28  */
29 
30 #if defined(LIBC_SCCS) && !defined(lint)
31 static char *rcsid = "$OpenBSD: svc_run.c,v 1.9 1996/11/14 06:33:12 etheisen Exp $";
32 #endif /* LIBC_SCCS and not lint */
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 <sys/errno.h>
40 #include <unistd.h>
41 #include <stdlib.h>
42 #include <string.h>
43 
44 extern int __svc_fdsetsize;
45 extern fd_set *__svc_fdset;
46 
47 void
48 svc_run()
49 {
50 	fd_set *fds;
51 
52 	for (;;) {
53 		if (__svc_fdset) {
54 			int bytes = howmany(__svc_fdsetsize, NFDBITS) *
55 			    sizeof(fd_mask);
56 			fds = (fd_set *)malloc(bytes);
57 			memcpy(fds, __svc_fdset, bytes);
58 		} else
59 			fds = NULL;
60 		switch (select(svc_maxfd+1, fds, 0, 0, (struct timeval *)0)) {
61 		case -1:
62 			if (errno == EINTR) {
63 				if (fds)
64 					free(fds);
65 				continue;
66 			}
67 			perror("svc_run: - select failed");
68 			if (fds)
69 				free(fds);
70 			return;
71 		case 0:
72 			if (fds)
73 				free(fds);
74 			continue;
75 		default:
76 			svc_getreqset2(fds, svc_maxfd+1);
77 			free(fds);
78 		}
79 	}
80 }
81