Added mount_msdos.

Obtained from: NetBSD

1 files changed, 199 insertions, 0 deletions

diff --git a/sbin/mount_msdosfs/mount_msdosfs.c b/sbin/mount_msdosfs/mount_msdosfs.c
new file mode 100644
index 0000000..075a512
--- /dev/null
+++ b/sbin/mount_msdosfs/mount_msdosfs.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright (c) 1994 Christopher G. Demetriou
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Christopher G. Demetriou.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+#ifndef lint
+static char rcsid[] = "$Id: mount_msdos.c,v 1.8 1994/07/16 21:32:08 cgd Exp $";
+#endif /* not lint */
+
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#define MSDOSFS
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <ctype.h>
+#include <err.h>
+#include <grp.h>
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mntopts.h"
+
+struct mntopt mopts[] = {
+	MOPT_STDOPTS,
+	{ NULL }
+};
+
+gid_t	a_gid __P((char *));
+uid_t	a_uid __P((char *));
+mode_t	a_mask __P((char *));
+void	usage __P((void));
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	struct msdosfs_args args;
+	struct stat sb;
+	int c, mntflags, set_gid, set_uid, set_mask;
+	char *dev, *dir, ndir[MAXPATHLEN+1];
+
+	mntflags = set_gid = set_uid = set_mask = 0;
+	(void)memset(&args, '\0', sizeof(args));
+
+	while ((c = getopt(argc, argv, "u:g:m:o:")) != EOF) {
+		switch (c) {
+		case 'u':
+			args.uid = a_uid(optarg);
+			set_uid = 1;
+			break;
+		case 'g':
+			args.gid = a_gid(optarg);
+			set_gid = 1;
+			break;
+		case 'm':
+			args.mask = a_mask(optarg);
+			set_mask = 1;
+			break;
+		case 'o':
+			getmntopts(optarg, mopts, &mntflags);
+			break;
+		case '?':
+		default:
+			usage();
+			break;
+		}
+	}
+
+	if (optind + 2 != argc)
+		usage();
+
+	dev = argv[optind];
+	dir = argv[optind + 1];
+	if (dir[0] != '/') {
+		warnx("\"%s\" is a relative path.", dir);
+		if (getcwd(ndir, sizeof(ndir)) == NULL)
+			err(1, "getcwd");
+		strncat(ndir, "/", sizeof(ndir) - strlen(ndir) - 1);
+		strncat(ndir, dir, sizeof(ndir) - strlen(ndir) - 1);
+		dir = ndir;
+		warnx("using \"%s\" instead.", dir);
+	}
+
+	args.fspec = dev;
+	args.export.ex_root = -2;	/* unchecked anyway on DOS fs */
+	if (mntflags & MNT_RDONLY)
+		args.export.ex_flags = MNT_EXRDONLY;
+	else
+		args.export.ex_flags = 0;
+	if (!set_gid || !set_uid || !set_mask) {
+		if (stat(dir, &sb) == -1)
+			err(1, "stat %s", dir);
+
+		if (!set_uid)
+			args.uid = sb.st_uid;
+		if (!set_gid)
+			args.gid = sb.st_gid;
+		if (!set_mask)
+			args.mask = sb.st_mode & (S_IRWXU | S_IRWXG | S_IRWXO);
+	}
+
+	if (mount(MOUNT_MSDOS, dir, mntflags, &args) < 0)
+		err(1, "mount");
+
+	exit (0);
+}
+
+gid_t
+a_gid(s)
+	char *s;
+{
+	struct group *gr;
+	char *gname;
+	gid_t gid;
+
+	if ((gr = getgrnam(s)) != NULL)
+		gid = gr->gr_gid;
+	else {
+		for (gname = s; *s && isdigit(*s); ++s);
+		if (!*s)
+			gid = atoi(gname);
+		else
+			errx(1, "unknown group id: %s", gname);
+	}
+	return (gid);
+}
+
+uid_t
+a_uid(s)
+	char *s;
+{
+	struct passwd *pw;
+	char *uname;
+	uid_t uid;
+
+	if ((pw = getpwnam(s)) != NULL)
+		uid = pw->pw_uid;
+	else {
+		for (uname = s; *s && isdigit(*s); ++s);
+		if (!*s)
+			uid = atoi(uname);
+		else
+			errx(1, "unknown user id: %s", uname);
+	}
+	return (uid);
+}
+
+mode_t
+a_mask(s)
+	char *s;
+{
+	int done, rv;
+	char *ep;
+
+	done = 0;
+	if (*s >= '0' && *s <= '7') {
+		done = 1;
+		rv = strtol(optarg, &ep, 8);
+	}
+	if (!done || rv < 0 || *ep)
+		errx(1, "invalid file mode: %s", s);
+	return (rv);
+}
+
+void
+usage()
+{
+	fprintf(stderr, "usage: mount_msdos [-F flags] [-u user] [-g group] [-m mask] bdev dir\n");
+	exit(1);
+}