Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/mount_ffs/mount_ffs.c	Lines:	18	32	56.3 %
Date:	2017-11-13	Branches:	7	16	43.8 %


/*	$OpenBSD: mount_ffs.c,v 1.24 2016/09/10 16:53:30 natano Exp $	*/
/*	$NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $	*/

/*-
 * Copyright (c) 1993, 1994
 *	The Regents of the University of California.  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. 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.
 */

#include <sys/types.h>
#include <sys/mount.h>

#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

#include "mntopts.h"

void	ffs_usage(void);

static const struct mntopt mopts[] = {
	MOPT_STDOPTS,
	MOPT_WXALLOWED,
	MOPT_NOPERM,
	MOPT_ASYNC,
	MOPT_SYNC,
	MOPT_UPDATE,
	MOPT_RELOAD,
	MOPT_FORCE,
	MOPT_SOFTDEP,
	{ NULL }
};

int
main(int argc, char *argv[])
{
	struct ufs_args args;		/* XXX ffs_args */
	int ch, mntflags;
	char fs_name[PATH_MAX], *errcause;

	mntflags = 0;
	optind = optreset = 1;		/* Reset for parse of new argv. */
	while ((ch = getopt(argc, argv, "o:")) != -1)
		switch (ch) {
		case 'o':
			getmntopts(optarg, mopts, &mntflags);
			break;
		case '?':
		default:
			ffs_usage();
		}
	argc -= optind;
	argv += optind;

	if (argc != 2)
		ffs_usage();

	args.fspec = argv[0];		/* The name of the device file. */
	if (realpath(argv[1], fs_name) == NULL) 	/* The mount point. */
		err(1, "realpath %s", argv[1]);

#define DEFAULT_ROOTUID	-2
	args.export_info.ex_root = DEFAULT_ROOTUID;
	if (mntflags & MNT_RDONLY)
		args.export_info.ex_flags = MNT_EXRDONLY;
	else
		args.export_info.ex_flags = 0;

	if (mntflags & MNT_NOPERM)
		mntflags |= MNT_NODEV | MNT_NOEXEC;

	if (mount(MOUNT_FFS, fs_name, mntflags, &args) < 0) {
		switch (errno) {
		case EMFILE:
			errcause = "mount table full";
			break;
		case EOPNOTSUPP:
			errcause = "filesystem not supported by kernel";
			break;
		case EROFS:
			errcause =
			    "filesystem must be mounted read-only; you may need to run fsck";
			break;
		default:
			errcause = strerror(errno);
			break;
		}
		errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
	}
	exit(0);
}

void
ffs_usage(void)
{
	(void)fprintf(stderr, "usage: mount_ffs [-o options] special node\n");
	exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: mount_ffs.c,v 1.24 2016/09/10 16:53:30 natano Exp $ */
2			/* $NetBSD: mount_ffs.c,v 1.3 1996/04/13 01:31:19 jtc Exp $ */
3
4			/*-
5			* Copyright (c) 1993, 1994
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/types.h>
34			#include <sys/mount.h>
35
36			#include <err.h>
37			#include <errno.h>
38			#include <stdio.h>
39			#include <stdlib.h>
40			#include <string.h>
41			#include <unistd.h>
42			#include <limits.h>
43
44			#include "mntopts.h"
45
46			void ffs_usage(void);
47
48			static const struct mntopt mopts[] = {
49			MOPT_STDOPTS,
50			MOPT_WXALLOWED,
51			MOPT_NOPERM,
52			MOPT_ASYNC,
53			MOPT_SYNC,
54			MOPT_UPDATE,
55			MOPT_RELOAD,
56			MOPT_FORCE,
57			MOPT_SOFTDEP,
58			{ NULL }
59			};
60
61			int
62			main(int argc, char *argv[])
63			{
64		8	struct ufs_args args; /* XXX ffs_args */
65		4	int ch, mntflags;
66		4	char fs_name[PATH_MAX], *errcause;
67
68		4	mntflags = 0;
69		4	optind = optreset = 1; /* Reset for parse of new argv. */
70	✓✓	16	while ((ch = getopt(argc, argv, "o:")) != -1)
71	✓✗	4	switch (ch) {
72			case 'o':
73		4	getmntopts(optarg, mopts, &mntflags);
74		4	break;
75			case '?':
76			default:
77			ffs_usage();
78			}
79		4	argc -= optind;
80		4	argv += optind;
81
82	✗✓	4	if (argc != 2)
83			ffs_usage();
84
85		4	args.fspec = argv[0]; /* The name of the device file. */
86	✗✓	4	if (realpath(argv[1], fs_name) == NULL) /* The mount point. */
87			err(1, "realpath %s", argv[1]);
88
89			#define DEFAULT_ROOTUID -2
90		4	args.export_info.ex_root = DEFAULT_ROOTUID;
91		4	if (mntflags & MNT_RDONLY)
92			args.export_info.ex_flags = MNT_EXRDONLY;
93			else
94			args.export_info.ex_flags = 0;
95
96	✗✓	4	if (mntflags & MNT_NOPERM)
97			mntflags \|= MNT_NODEV \| MNT_NOEXEC;
98
99	✗✓	4	if (mount(MOUNT_FFS, fs_name, mntflags, &args) < 0) {
100			switch (errno) {
101			case EMFILE:
102			errcause = "mount table full";
103			break;
104			case EOPNOTSUPP:
105			errcause = "filesystem not supported by kernel";
106			break;
107			case EROFS:
108			errcause =
109			"filesystem must be mounted read-only; you may need to run fsck";
110			break;
111			default:
112			errcause = strerror(errno);
113			break;
114			}
115			errx(1, "%s on %s: %s", args.fspec, fs_name, errcause);
116			}
117			exit(0);
118			}
119
120			void
121			ffs_usage(void)
122			{
123			(void)fprintf(stderr, "usage: mount_ffs [-o options] special node\n");
124			exit(1);
125			}