/* $NetBSD: checkrev.c,v 1.1.1.1 2004/03/28 08:56:18 martti Exp $ */ /* * Copyright (C) 1993-2001 by Darren Reed. * * See the IPFILTER.LICENCE file for details on licencing. * * Id: checkrev.c,v 1.12.2.1 2004/03/09 14:44:39 darrenr Exp */ #include #include #include "ipf.h" #include "netinet/ipl.h" int checkrev(ipfname) char *ipfname; { static int vfd = -1; struct friostat fio, *fiop = &fio; ipfobj_t ipfo; bzero((caddr_t)&ipfo, sizeof(ipfo)); ipfo.ipfo_rev = IPFILTER_VERSION; ipfo.ipfo_size = sizeof(*fiop); ipfo.ipfo_ptr = (void *)fiop; ipfo.ipfo_type = IPFOBJ_IPFSTAT; if ((vfd == -1) && ((vfd = open(ipfname, O_RDONLY)) == -1)) { perror("open device"); return -1; } if (ioctl(vfd, SIOCGETFS, &ipfo)) { perror("ioctl(SIOCGETFS)"); close(vfd); vfd = -1; return -1; } if (strncmp(IPL_VERSION, fio.f_version, sizeof(fio.f_version))) { return -1; } return 0; }