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authorPedro F. Giffuni <pfg@FreeBSD.org>2015-01-28 22:55:06 +0000
committerPedro F. Giffuni <pfg@FreeBSD.org>2015-01-28 22:55:06 +0000
commite925d4a747df4a349c2baac436a71f606945baa5 (patch)
treee3a2ccc21623f0453c6f43f9016535205ba10d21 /conf/mtab/mtab_bsd.c
parent509fcedcfec077a6070002f4059db0ae675be869 (diff)
downloadsrc-e925d4a747df4a349c2baac436a71f606945baa5.tar.gz
src-e925d4a747df4a349c2baac436a71f606945baa5.zip
amd: flatten the tree
Notes
Notes: svn path=/vendor/amd/dist/; revision=277863
Diffstat (limited to 'conf/mtab/mtab_bsd.c')
-rw-r--r--conf/mtab/mtab_bsd.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/conf/mtab/mtab_bsd.c b/conf/mtab/mtab_bsd.c
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+/*
+ * Copyright (c) 1997-2006 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 acknowledgment:
+ * 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.
+ *
+ *
+ * File: am-utils/conf/mtab/mtab_bsd.c
+ *
+ */
+
+/*
+ * 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 <config.h>
+#endif /* HAVE_CONFIG_H */
+#include <am_defs.h>
+#include <amu.h>
+
+
+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_STRUCT_STATFS_F_FSTYPENAME
+ ty = mp->f_fstypename;
+#else /* not HAVE_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_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;
+}