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 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