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authorPawel Jakub Dawidek <pjd@FreeBSD.org>2007-04-06 01:09:06 +0000
committerPawel Jakub Dawidek <pjd@FreeBSD.org>2007-04-06 01:09:06 +0000
commitf0a75d274af375d15b97b830966b99a02b7db911 (patch)
tree3061c8734d9ce560165e672836837a0f411a83c9 /cddl/compat/opensolaris/misc/mnttab.c
parentc8c0ba192e3ac07c3797a1bbca52e5575e019890 (diff)
downloadsrc-f0a75d274af375d15b97b830966b99a02b7db911.tar.gz
src-f0a75d274af375d15b97b830966b99a02b7db911.zip
Please welcome ZFS - The last word in file systems.
ZFS file system was ported from OpenSolaris operating system. The code in under CDDL license. I'd like to thank all SUN developers that created this great piece of software. Supported by: Wheel LTD (http://www.wheel.pl/) Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/) Supported by: Sentex (http://www.sentex.net/)
Notes
Notes: svn path=/head/; revision=168404
Diffstat (limited to 'cddl/compat/opensolaris/misc/mnttab.c')
-rw-r--r--cddl/compat/opensolaris/misc/mnttab.c160
1 files changed, 160 insertions, 0 deletions
diff --git a/cddl/compat/opensolaris/misc/mnttab.c b/cddl/compat/opensolaris/misc/mnttab.c
new file mode 100644
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+++ b/cddl/compat/opensolaris/misc/mnttab.c
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+/*-
+ * Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
+ */
+
+/*
+ * This file implements Solaris compatible getmntany() and hasmntopt()
+ * functions.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/mntent.h>
+#include <sys/mnttab.h>
+#include <stdio.h>
+
+static char *
+mntopt(char **p)
+{
+ char *cp = *p;
+ char *retstr;
+
+ while (*cp && isspace(*cp))
+ cp++;
+
+ retstr = cp;
+ while (*cp && *cp != ',')
+ cp++;
+
+ if (*cp) {
+ *cp = '\0';
+ cp++;
+ }
+
+ *p = cp;
+ return (retstr);
+}
+
+char *
+hasmntopt(struct mnttab *mnt, char *opt)
+{
+ char tmpopts[MNT_LINE_MAX];
+ char *f, *opts = tmpopts;
+
+ if (mnt->mnt_mntopts == NULL)
+ return (NULL);
+ (void) strcpy(opts, mnt->mnt_mntopts);
+ f = mntopt(&opts);
+ for (; *f; f = mntopt(&opts)) {
+ if (strncmp(opt, f, strlen(opt)) == 0)
+ return (f - tmpopts + mnt->mnt_mntopts);
+ }
+ return (NULL);
+}
+
+static void
+optadd(char *mntopts, size_t size, const char *opt)
+{
+
+ if (mntopts[0] != '\0')
+ strlcat(mntopts, ",", size);
+ strlcat(mntopts, opt, size);
+}
+
+int
+getmntany(FILE *fd __unused, struct mnttab *mgetp, struct mnttab *mrefp)
+{
+ static struct statfs *sfs = NULL;
+ static char mntopts[MNTMAXSTR];
+ struct opt *o;
+ long i, n, flags;
+
+ if (sfs != NULL) {
+ free(sfs);
+ sfs = NULL;
+ }
+ mntopts[0] = '\0';
+
+ n = getfsstat(NULL, 0, MNT_NOWAIT);
+ if (n == -1)
+ return (-1);
+ n = sizeof(*sfs) * (n + 8);
+ sfs = malloc(n);
+ if (sfs == NULL)
+ return (-1);
+ n = getfsstat(sfs, n, MNT_WAIT);
+ if (n == -1) {
+ free(sfs);
+ sfs = NULL;
+ return (-1);
+ }
+ for (i = 0; i < n; i++) {
+ if (mrefp->mnt_special != NULL &&
+ strcmp(mrefp->mnt_special, sfs[i].f_mntfromname) != 0) {
+ continue;
+ }
+ if (mrefp->mnt_mountp != NULL &&
+ strcmp(mrefp->mnt_mountp, sfs[i].f_mntonname) != 0) {
+ continue;
+ }
+ if (mrefp->mnt_fstype != NULL &&
+ strcmp(mrefp->mnt_fstype, sfs[i].f_fstypename) != 0) {
+ continue;
+ }
+ flags = sfs[i].f_flags;
+#define OPTADD(opt) optadd(mntopts, sizeof(mntopts), (opt))
+ if (flags & MNT_RDONLY)
+ OPTADD(MNTOPT_RO);
+ else
+ OPTADD(MNTOPT_RW);
+ if (flags & MNT_NOSUID)
+ OPTADD(MNTOPT_NOSUID);
+ else
+ OPTADD(MNTOPT_SETUID);
+ if (flags & MNT_UPDATE)
+ OPTADD(MNTOPT_REMOUNT);
+ if (flags & MNT_NOATIME)
+ OPTADD(MNTOPT_NOATIME);
+ else
+ OPTADD(MNTOPT_ATIME);
+ OPTADD(MNTOPT_NOXATTR);
+ if (flags & MNT_NOEXEC)
+ OPTADD(MNTOPT_NOEXEC);
+ else
+ OPTADD(MNTOPT_EXEC);
+#undef OPTADD
+ mgetp->mnt_special = sfs[i].f_mntfromname;
+ mgetp->mnt_mountp = sfs[i].f_mntonname;
+ mgetp->mnt_fstype = sfs[i].f_fstypename;
+ mgetp->mnt_mntopts = mntopts;
+ return (0);
+ }
+ free(sfs);
+ sfs = NULL;
+ return (-1);
+}