/* $NetBSD: mtabutil.c,v 1.1.1.4 1998/08/08 22:05:25 christos Exp $ */ /* * Copyright (c) 1997-1998 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * %W% (Berkeley) %G% * * Id: mtab_bsd.c,v 5.2.2.2 1992/11/12 23:29:14 jsp Exp * */ /* * BSD 4.4 systems don't write their mount tables on a file. Instead, they * use a (better) system where the kernel keeps this state, and you access * the mount tables via a known interface. */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include static mntent_t * mnt_dup(struct statfs *mp) { mntent_t *new_mp = ALLOC(mntent_t); char *ty; new_mp->mnt_fsname = strdup(mp->f_mntfromname); new_mp->mnt_dir = strdup(mp->f_mntonname); #ifdef HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME ty = mp->f_fstypename; #else /* not HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME */ switch (mp->f_type) { # if defined(MOUNT_UFS) && defined(MNTTAB_TYPE_UFS) case MOUNT_UFS: ty = MNTTAB_TYPE_UFS; break; # endif /* defined(MOUNT_UFS) && defined(MNTTAB_TYPE_UFS) */ # if defined(MOUNT_NFS) && defined(MNTTAB_TYPE_NFS) case MOUNT_NFS: ty = MNTTAB_TYPE_NFS; break; # endif /* defined(MOUNT_NFS) && defined(MNTTAB_TYPE_NFS) */ # if defined(MOUNT_MFS) && defined(MNTTAB_TYPE_MFS) case MOUNT_MFS: ty = MNTTAB_TYPE_MFS; break; # endif /* defined(MOUNT_MFS) && defined(MNTTAB_TYPE_MFS) */ default: ty = "unknown"; break; } #endif /* not HAVE_FIELD_STRUCT_STATFS_F_FSTYPENAME */ new_mp->mnt_type = strdup(ty); new_mp->mnt_opts = strdup("unset"); new_mp->mnt_freq = 0; new_mp->mnt_passno = 0; return new_mp; } /* * Read a mount table into memory */ mntlist * read_mtab(char *fs, const char *mnttabname) { mntlist **mpp, *mhp; struct statfs *mntbufp, *mntp; int nloc = getmntinfo(&mntbufp, MNT_NOWAIT); if (nloc == 0) { plog(XLOG_ERROR, "Can't read mount table"); return 0; } mpp = &mhp; for (mntp = mntbufp; mntp < mntbufp + nloc; mntp++) { /* * Allocate a new slot */ *mpp = ALLOC(struct mntlist); /* * Copy the data returned by getmntent */ (*mpp)->mnt = mnt_dup(mntp); /* * Move to next pointer */ mpp = &(*mpp)->mnext; } /* * Terminate the list */ *mpp = 0; return mhp; }