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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/fsck_msdos/check.c	Lines:	0	102	0.0 %
Date:	2016-12-06	Branches:	0	66	0.0 %


/*	$OpenBSD: check.c,v 1.18 2015/10/14 16:58:55 deraadt Exp $	*/
/*	$NetBSD: check.c,v 1.8 1997/10/17 11:19:29 ws Exp $	*/

/*
 * Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank
 * Copyright (c) 1995 Martin Husemann
 *
 * 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 ``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 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/ioctl.h>
#include <sys/dkio.h>
#include <sys/disklabel.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdio.h>
#include <unistd.h>
#include <limits.h>
#include <fcntl.h>
#include <util.h>
#include <err.h>

#include "ext.h"

struct disklabel lab;

int
checkfilesys(const char *fname)
{
	int dosfs;
	struct bootblock boot;
	struct fatEntry *fat = NULL;
	char *realdev;
	int i;
	int mod = 0;

	rdonly = alwaysno;

	dosfs = opendev(fname, rdonly ? O_RDONLY : O_RDWR, 0, &realdev);
	if (dosfs < 0 && !rdonly) {
		dosfs = opendev(fname, O_RDONLY, 0, &realdev);
		rdonly = 1;
	}
	if (dosfs < 0) {
		xperror("Can't open");
		return (8);
	}

	if (!preen) {
		printf("** %s", realdev);
		if (strncmp(fname, realdev, PATH_MAX) != 0)
			printf(" (%s)", fname);
		if (rdonly)
			printf(" (NO WRITE)");
		printf("\n");
	}

	if (ioctl(dosfs, DIOCGDINFO, (char *)&lab) < 0)
		pfatal("can't read disk label for %s\n", fname);

	if (pledge("stdio rpath cpath wpath", NULL) == -1)
		err(1, "pledge");

	if (readboot(dosfs, &boot) != FSOK) {
		(void)close(dosfs);
		return (8);
	}

	if (!preen) {
		if (boot.ValidFat < 0)
			printf("** Phase 1 - Read and Compare FATs\n");
		else
			printf("** Phase 1 - Read FAT\n");
	}

	mod |= readfat(dosfs, &boot, boot.ValidFat >= 0 ? boot.ValidFat : 0, &fat);
	if (mod & FSFATAL) {
		(void)close(dosfs);
		return 8;
	}

	if (boot.ValidFat < 0)
		for (i = 1; i < boot.FATs; i++) {
			struct fatEntry *currentFat;
			mod |= readfat(dosfs, &boot, i, &currentFat);

			if (mod & FSFATAL) {
				free(fat);
				(void)close(dosfs);
				return 8;
			}

			mod |= comparefat(&boot, fat, currentFat, i);
			free(currentFat);
			if (mod & FSFATAL) {
				free(fat);
				(void)close(dosfs);
				return (8);
			}
		}

	if (!preen)
		printf("** Phase 2 - Check Cluster Chains\n");

	mod |= checkfat(&boot, fat);
	if (mod & FSFATAL) {
		free(fat);
		(void)close(dosfs);
		return (8);
	}

	if (mod & FSFATMOD)
		mod |= writefat(dosfs, &boot, fat); /* delay writing fats?	XXX */
	if (mod & FSFATAL) {
		free(fat);
		(void)close(dosfs);
		return (8);
	}

	if (!preen)
		printf("** Phase 3 - Check Directories\n");

	mod |= resetDosDirSection(&boot, fat);
	if (mod & FSFATAL) {
		free(fat);
		close(dosfs);
		return 8;
	}

	if (mod & FSFATMOD)
		mod |= writefat(dosfs, &boot, fat); /* delay writing fats?	XXX */
	if (mod & FSFATAL) {
		finishDosDirSection();
		free(fat);
		(void)close(dosfs);
		return (8);
	}

	mod |= handleDirTree(dosfs, &boot, fat);
	if (mod & FSFATAL) {
		finishDosDirSection();
		free(fat);
		(void)close(dosfs);
		return (8);
	}

	if (!preen)
		printf("** Phase 4 - Check for Lost Files\n");

	mod |= checklost(dosfs, &boot, fat);
	if (mod & FSFATAL) {
		finishDosDirSection();
		free(fat);
		(void)close(dosfs);
		return 8;
	}

	if (mod & FSFATMOD)
		mod |= writefat(dosfs, &boot, fat); /* delay writing fats?    XXX */

	finishDosDirSection();
	free(fat);
	(void)close(dosfs);
	if (mod & FSFATAL)
		return 8;

	if (boot.NumBad)
		pwarn("%d files, %d free (%d clusters), %d bad (%d clusters)\n",
		      boot.NumFiles,
		      boot.NumFree * boot.ClusterSize / 1024, boot.NumFree,
		      boot.NumBad * boot.ClusterSize / 1024, boot.NumBad);
	else
		pwarn("%d files, %d free (%d clusters)\n",
		      boot.NumFiles,
		      boot.NumFree * boot.ClusterSize / 1024, boot.NumFree);

	if (mod & (FSFATAL | FSERROR))
		return (8);
	if (mod) {
		pwarn("\n***** FILE SYSTEM WAS MODIFIED *****\n");
		return (4);
	}
	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: check.c,v 1.18 2015/10/14 16:58:55 deraadt Exp $ */
2			/* $NetBSD: check.c,v 1.8 1997/10/17 11:19:29 ws Exp $ */
3
4			/*
5			* Copyright (C) 1995, 1996, 1997 Wolfgang Solfrank
6			* Copyright (c) 1995 Martin Husemann
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			*
17			* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20			* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27			*/
28
29			#include <sys/types.h>
30			#include <sys/ioctl.h>
31			#include <sys/dkio.h>
32			#include <sys/disklabel.h>
33			#include <stdlib.h>
34			#include <string.h>
35			#include <ctype.h>
36			#include <stdio.h>
37			#include <unistd.h>
38			#include <limits.h>
39			#include <fcntl.h>
40			#include <util.h>
41			#include <err.h>
42
43			#include "ext.h"
44
45			struct disklabel lab;
46
47			int
48			checkfilesys(const char *fname)
49			{
50			int dosfs;
51			struct bootblock boot;
52			struct fatEntry *fat = NULL;
53			char *realdev;
54			int i;
55			int mod = 0;
56
57			rdonly = alwaysno;
58
59			dosfs = opendev(fname, rdonly ? O_RDONLY : O_RDWR, 0, &realdev);
60			if (dosfs < 0 && !rdonly) {
61			dosfs = opendev(fname, O_RDONLY, 0, &realdev);
62			rdonly = 1;
63			}
64			if (dosfs < 0) {
65			xperror("Can't open");
66			return (8);
67			}
68
69			if (!preen) {
70			printf("** %s", realdev);
71			if (strncmp(fname, realdev, PATH_MAX) != 0)
72			printf(" (%s)", fname);
73			if (rdonly)
74			printf(" (NO WRITE)");
75			printf("\n");
76			}
77
78			if (ioctl(dosfs, DIOCGDINFO, (char *)&lab) < 0)
79			pfatal("can't read disk label for %s\n", fname);
80
81			if (pledge("stdio rpath cpath wpath", NULL) == -1)
82			err(1, "pledge");
83
84			if (readboot(dosfs, &boot) != FSOK) {
85			(void)close(dosfs);
86			return (8);
87			}
88
89			if (!preen) {
90			if (boot.ValidFat < 0)
91			printf("** Phase 1 - Read and Compare FATs\n");
92			else
93			printf("** Phase 1 - Read FAT\n");
94			}
95
96			mod \|= readfat(dosfs, &boot, boot.ValidFat >= 0 ? boot.ValidFat : 0, &fat);
97			if (mod & FSFATAL) {
98			(void)close(dosfs);
99			return 8;
100			}
101
102			if (boot.ValidFat < 0)
103			for (i = 1; i < boot.FATs; i++) {
104			struct fatEntry *currentFat;
105			mod \|= readfat(dosfs, &boot, i, &currentFat);
106
107			if (mod & FSFATAL) {
108			free(fat);
109			(void)close(dosfs);
110			return 8;
111			}
112
113			mod \|= comparefat(&boot, fat, currentFat, i);
114			free(currentFat);
115			if (mod & FSFATAL) {
116			free(fat);
117			(void)close(dosfs);
118			return (8);
119			}
120			}
121
122			if (!preen)
123			printf("** Phase 2 - Check Cluster Chains\n");
124
125			mod \|= checkfat(&boot, fat);
126			if (mod & FSFATAL) {
127			free(fat);
128			(void)close(dosfs);
129			return (8);
130			}
131
132			if (mod & FSFATMOD)
133			mod \|= writefat(dosfs, &boot, fat); /* delay writing fats? XXX */
134			if (mod & FSFATAL) {
135			free(fat);
136			(void)close(dosfs);
137			return (8);
138			}
139
140			if (!preen)
141			printf("** Phase 3 - Check Directories\n");
142
143			mod \|= resetDosDirSection(&boot, fat);
144			if (mod & FSFATAL) {
145			free(fat);
146			close(dosfs);
147			return 8;
148			}
149
150			if (mod & FSFATMOD)
151			mod \|= writefat(dosfs, &boot, fat); /* delay writing fats? XXX */
152			if (mod & FSFATAL) {
153			finishDosDirSection();
154			free(fat);
155			(void)close(dosfs);
156			return (8);
157			}
158
159			mod \|= handleDirTree(dosfs, &boot, fat);
160			if (mod & FSFATAL) {
161			finishDosDirSection();
162			free(fat);
163			(void)close(dosfs);
164			return (8);
165			}
166
167			if (!preen)
168			printf("** Phase 4 - Check for Lost Files\n");
169
170			mod \|= checklost(dosfs, &boot, fat);
171			if (mod & FSFATAL) {
172			finishDosDirSection();
173			free(fat);
174			(void)close(dosfs);
175			return 8;
176			}
177
178			if (mod & FSFATMOD)
179			mod \|= writefat(dosfs, &boot, fat); /* delay writing fats? XXX */
180
181			finishDosDirSection();
182			free(fat);
183			(void)close(dosfs);
184			if (mod & FSFATAL)
185			return 8;
186
187			if (boot.NumBad)
188			pwarn("%d files, %d free (%d clusters), %d bad (%d clusters)\n",
189			boot.NumFiles,
190			boot.NumFree * boot.ClusterSize / 1024, boot.NumFree,
191			boot.NumBad * boot.ClusterSize / 1024, boot.NumBad);
192			else
193			pwarn("%d files, %d free (%d clusters)\n",
194			boot.NumFiles,
195			boot.NumFree * boot.ClusterSize / 1024, boot.NumFree);
196
197			if (mod & (FSFATAL \| FSERROR))
198			return (8);
199			if (mod) {
200			pwarn("\n*** FILE SYSTEM WAS MODIFIED ***\n");
201			return (4);
202			}
203			return (0);
204			}