/* $NetBSD: umount_osf.c,v 1.1.1.3 2015/01/17 16:34:16 christos Exp $ */ /* * Copyright (c) 1997-2014 Erez Zadok * Copyright (c) 1990 Jan-Simon Pendry * Copyright (c) 1990 Imperial College of Science, Technology & Medicine * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * * File: am-utils/conf/umount/umount_osf.c * */ /* * Unmounting filesystems under OSF. */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include int umount_fs(char *mntdir, const char *mnttabname, u_int unmount_flags) { int error; eintr: error = umount(mntdir, MNT_NOFORCE); if (error < 0) error = errno; switch (error) { case EINVAL: case ENOTBLK: plog(XLOG_WARNING, "unmount: %s is not mounted", mntdir); error = 0; /* Not really an error */ break; case ENOENT: plog(XLOG_ERROR, "mount point %s: %m", mntdir); break; case EINTR: /* not sure why this happens, but it does. ask kirk one day... */ dlog("%s: unmount: %m", mntdir); goto eintr; #ifdef MNT2_GEN_OPT_FORCE case EBUSY: case EIO: case ESTALE: /* caller determines if forced unmounts should be used */ if (unmount_flags & AMU_UMOUNT_FORCE) { error = umount2_fs(mntdir, unmount_flags); if ((error = umount2_fs(mntdir, unmount_flags)) < 0) error = errno; else return error; } /* fallthrough */ #endif /* MNT2_GEN_OPT_FORCE */ default: dlog("%s: unmount: %m", mntdir); break; } return error; } #ifdef MNT2_GEN_OPT_FORCE /* force unmount, no questions asked, without touching mnttab file */ int umount2_fs(const char *mntdir, u_int unmount_flags) { int error = 0; if (unmount_flags & AMU_UMOUNT_FORCE) { plog(XLOG_INFO, "umount2_fs: trying unmount/forced on %s", mntdir); error = umount((char *)mntdir, MNT2_GEN_OPT_FORCE); if (error < 0 && (errno == EINVAL || errno == ENOENT)) error = 0; /* ignore EINVAL/ENOENT */ if (error < 0) plog(XLOG_WARNING, "%s: unmount/force: %m", mntdir); else dlog("%s: unmount/force: OK", mntdir); } return error; } #endif /* MNT2_GEN_OPT_FORCE */