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authordfr <dfr@FreeBSD.org>1994-09-19 15:30:36 +0000
committerdfr <dfr@FreeBSD.org>1994-09-19 15:30:36 +0000
commit7a224749be53b3a6bdb826ffbd93208f0b757586 (patch)
treead91cc58a60b9680c44769518b53aa9627ab66c4 /sbin/mount_msdos/mount_msdos.c
parent1ff9a5aeb010403bd2e2ac74886ea1b9990d738f (diff)
downloadFreeBSD-src-7a224749be53b3a6bdb826ffbd93208f0b757586.zip
FreeBSD-src-7a224749be53b3a6bdb826ffbd93208f0b757586.tar.gz
Added mount_msdos.
Obtained from: NetBSD
Diffstat (limited to 'sbin/mount_msdos/mount_msdos.c')
-rw-r--r--sbin/mount_msdos/mount_msdos.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/sbin/mount_msdos/mount_msdos.c b/sbin/mount_msdos/mount_msdos.c
new file mode 100644
index 0000000..075a512
--- /dev/null
+++ b/sbin/mount_msdos/mount_msdos.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);
+}
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