svn commit: r275680 - in head: contrib/file/doc sbin/mount usr.sbin usr.sbin/fstyp
Edward Tomasz Napierala
trasz at FreeBSD.org
Wed Dec 10 14:14:20 UTC 2014
Author: trasz
Date: Wed Dec 10 14:14:16 2014
New Revision: 275680
URL: https://svnweb.freebsd.org/changeset/base/275680
Log:
Add fstyp(8). This utility, named after its SVR4 counterpart, detects
filesystems. It differs from file(1) in that it gives machine-parseable
output, it outputs filesystem labels, doesn't get confused by other
formats metadata, and runs in Capsicum sandbox.
Differential Revision: https://reviews.freebsd.org/D1255
Relnotes: yes
Sponsored by: The FreeBSD Foundation
Added:
head/usr.sbin/fstyp/
head/usr.sbin/fstyp/Makefile (contents, props changed)
head/usr.sbin/fstyp/cd9660.c (contents, props changed)
head/usr.sbin/fstyp/ext2fs.c (contents, props changed)
head/usr.sbin/fstyp/fstyp.8 (contents, props changed)
head/usr.sbin/fstyp/fstyp.c (contents, props changed)
head/usr.sbin/fstyp/fstyp.h (contents, props changed)
head/usr.sbin/fstyp/msdosfs.c (contents, props changed)
head/usr.sbin/fstyp/msdosfs.h (contents, props changed)
head/usr.sbin/fstyp/ntfs.c (contents, props changed)
head/usr.sbin/fstyp/ufs.c (contents, props changed)
Modified:
head/contrib/file/doc/file.man
head/sbin/mount/mount.8
head/usr.sbin/Makefile
Modified: head/contrib/file/doc/file.man
==============================================================================
--- head/contrib/file/doc/file.man Wed Dec 10 13:25:21 2014 (r275679)
+++ head/contrib/file/doc/file.man Wed Dec 10 14:14:16 2014 (r275680)
@@ -1,5 +1,5 @@
.\" $File: file.man,v 1.106 2014/03/07 23:11:51 christos Exp $
-.Dd January 30, 2014
+.Dd December 3, 2014
.Dt FILE __CSECTION__
.Os
.Sh NAME
@@ -385,6 +385,7 @@ options.
.Xr hexdump 1 ,
.Xr od 1 ,
.Xr strings 1 ,
+.Xr fstyp 8
.Sh STANDARDS CONFORMANCE
This program is believed to exceed the System V Interface Definition
of FILE(CMD), as near as one can determine from the vague language
Modified: head/sbin/mount/mount.8
==============================================================================
--- head/sbin/mount/mount.8 Wed Dec 10 13:25:21 2014 (r275679)
+++ head/sbin/mount/mount.8 Wed Dec 10 14:14:16 2014 (r275680)
@@ -28,7 +28,7 @@
.\" @(#)mount.8 8.8 (Berkeley) 6/16/94
.\" $FreeBSD$
.\"
-.Dd November 22, 2014
+.Dd December 3, 2014
.Dt MOUNT 8
.Os
.Sh NAME
@@ -549,6 +549,7 @@ support for a particular file system mig
.Xr fstab 5 ,
.Xr procfs 5 ,
.Xr automount 8 ,
+.Xr fstyp 8 ,
.Xr kldload 8 ,
.Xr mount_cd9660 8 ,
.Xr mount_msdosfs 8 ,
Modified: head/usr.sbin/Makefile
==============================================================================
--- head/usr.sbin/Makefile Wed Dec 10 13:25:21 2014 (r275679)
+++ head/usr.sbin/Makefile Wed Dec 10 14:14:16 2014 (r275680)
@@ -29,6 +29,7 @@ SUBDIR= adduser \
extattr \
extattrctl \
fifolog \
+ fstyp \
fwcontrol \
getfmac \
getpmac \
Added: head/usr.sbin/fstyp/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/Makefile Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,9 @@
+# $FreeBSD$
+
+PROG= fstyp
+SRCS= fstyp.c ext2fs.c cd9660.c msdosfs.c ntfs.c ufs.c
+MAN= fstyp.8
+
+WARNS= 6
+
+.include <bsd.prog.mk>
Added: head/usr.sbin/fstyp/cd9660.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/cd9660.c Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,72 @@
+/*-
+ * Copyright (c) 2004 Pawel Jakub Dawidek <pjd at FreeBSD.org>
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fstyp.h"
+
+#define G_LABEL_ISO9660_DIR "iso9660"
+
+#define ISO9660_MAGIC "\x01" "CD001" "\x01\x00"
+#define ISO9660_OFFSET 0x8000
+#define VOLUME_LEN 32
+
+int
+fstyp_cd9660(FILE *fp, char *label, size_t size)
+{
+ char *sector, *volume;
+ int i;
+
+ sector = read_buf(fp, ISO9660_OFFSET, 512);
+ if (sector == NULL)
+ return (1);
+ if (bcmp(sector, ISO9660_MAGIC, sizeof(ISO9660_MAGIC) - 1) != 0) {
+ free(sector);
+ return (1);
+ }
+ volume = sector + 0x28;
+ bzero(label, size);
+ strlcpy(label, volume, MIN(size, VOLUME_LEN));
+ free(sector);
+ for (i = size - 1; i > 0; i--) {
+ if (label[i] == '\0')
+ continue;
+ else if (label[i] == ' ')
+ label[i] = '\0';
+ else
+ break;
+ }
+ return (0);
+}
Added: head/usr.sbin/fstyp/ext2fs.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/ext2fs.c Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,90 @@
+/*-
+ * Copyright (c) 2005 Stanislav Sedov
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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 AUTHOR 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 AUTHOR 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fstyp.h"
+
+#define EXT2FS_SB_OFFSET 1024
+#define EXT2_SUPER_MAGIC 0xef53
+#define EXT2_DYNAMIC_REV 1
+
+typedef struct e2sb {
+ uint8_t fake1[56];
+ uint16_t s_magic;
+ uint8_t fake2[18];
+ uint32_t s_rev_level;
+ uint8_t fake3[40];
+ char s_volume_name[16];
+} e2sb_t;
+
+int
+fstyp_ext2fs(FILE *fp, char *label, size_t size)
+{
+ e2sb_t *fs;
+ char *s_volume_name;
+
+ fs = (e2sb_t *)read_buf(fp, EXT2FS_SB_OFFSET, 512);
+ if (fs == NULL)
+ return (1);
+
+ /* Check for magic and versio n*/
+ if (fs->s_magic == EXT2_SUPER_MAGIC &&
+ fs->s_rev_level == EXT2_DYNAMIC_REV) {
+ //G_LABEL_DEBUG(1, "ext2fs file system detected on %s.",
+ // pp->name);
+ } else {
+ free(fs);
+ return (1);
+ }
+
+ s_volume_name = fs->s_volume_name;
+ /* Terminate label */
+ s_volume_name[sizeof(fs->s_volume_name) - 1] = '\0';
+
+ if (s_volume_name[0] == '/')
+ s_volume_name += 1;
+
+ /* Check for volume label */
+ if (s_volume_name[0] == '\0') {
+ free(fs);
+ return (1);
+ }
+
+ strlcpy(label, s_volume_name, size);
+
+ return (0);
+}
Added: head/usr.sbin/fstyp/fstyp.8
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/fstyp.8 Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,97 @@
+.\" Copyright (c) 2014 The FreeBSD Foundation
+.\" All rights reserved.
+.\"
+.\" This software was developed by Edward Tomasz Napierala under sponsorship
+.\" from the FreeBSD Foundation.
+.\"
+.\" 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd December 6, 2014
+.Dt FSTYP 8
+.Os
+.Sh NAME
+.Nm fstyp
+.Nd determine filesystem type
+.Sh SYNOPSIS
+.Nm
+.Op Fl l
+.Op Fl s
+.Ar special
+.Sh DESCRIPTION
+The
+.Nm
+utility is used to determine the filesystem type on a given device.
+It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesystems.
+The filesystem name is printed to the standard output
+as, respectively,
+.Li cd9660 ,
+.Li ext2fs ,
+.Li msdosfs ,
+.Li ntfs ,
+or
+.Li ufs .
+.Pp
+Because
+.Nm
+is built specifically to detect filesystem types, it differs from
+.Xr file 1
+in several ways.
+The output is machine-parsable, filesystem labels are supported,
+and only filesystems are identified.
+Security is improved with
+.Xr capsicum 4 .
+.Pp
+These options are available:
+.Bl -tag -width ".Fl l"
+.It Fl l
+In addition to filesystem type, print filesystem label if available.
+.It Fl s
+Ignore file type.
+By default,
+.Nm
+only works on regular files and disk-like device nodes.
+Trying to read other file types might have unexpected consequences or hang
+indefinitely.
+.El
+.Sh EXIT STATUS
+The
+.Nm
+utility exits 0 on success, and >0 if an error occurs or the filesystem
+type is not recognized.
+.Sh SEE ALSO
+.Xr file 1 ,
+.Xr capsicum 4 ,
+.Xr glabel 8 ,
+.Xr mount 8
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Fx 11.0 .
+.Sh AUTHORS
+The
+.Nm
+utility was developed by
+.An Edward Tomasz Napierala Aq Mt trasz at FreeBSD.org
+under sponsorship from the FreeBSD Foundation.
Added: head/usr.sbin/fstyp/fstyp.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/fstyp.c Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,210 @@
+/*-
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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 AUTHOR 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 AUTHOR 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/capsicum.h>
+#include <sys/disk.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <err.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <vis.h>
+
+#include "fstyp.h"
+
+#define LABEL_LEN 256
+
+typedef int (*fstyp_function)(FILE *, char *, size_t);
+
+static struct {
+ const char *name;
+ fstyp_function function;
+} fstypes[] = {
+ { "cd9660", &fstyp_cd9660 },
+ { "ext2fs", &fstyp_ext2fs },
+ { "msdosfs", &fstyp_msdosfs },
+ { "ntfs", &fstyp_ntfs },
+ { "ufs", &fstyp_ufs },
+ { NULL, NULL }
+};
+
+void *
+read_buf(FILE *fp, off_t off, size_t len)
+{
+ int error;
+ size_t nread;
+ void *buf;
+
+ error = fseek(fp, off, SEEK_SET);
+ if (error != 0) {
+ warn("cannot seek to %jd", (uintmax_t)off);
+ return (NULL);
+ }
+
+ buf = malloc(len);
+ if (buf == 0) {
+ warn("cannot malloc %zd bytes of memory", len);
+ return (NULL);
+ }
+
+ nread = fread(buf, len, 1, fp);
+ if (nread != 1) {
+ free(buf);
+ if (feof(fp) == 0)
+ warn("fread");
+ return (NULL);
+ }
+
+ return (buf);
+}
+
+char *
+checked_strdup(const char *s)
+{
+ char *c;
+
+ c = strdup(s);
+ if (c == NULL)
+ err(1, "strdup");
+ return (c);
+}
+
+static void
+usage(void)
+{
+
+ fprintf(stderr, "usage: fstyp [-l][-s] special\n");
+ exit(1);
+}
+
+static void
+type_check(const char *path, FILE *fp)
+{
+ int error, fd;
+ off_t mediasize;
+ struct stat sb;
+
+ fd = fileno(fp);
+
+ error = fstat(fd, &sb);
+ if (error != 0)
+ err(1, "%s: fstat", path);
+
+ if (S_ISREG(sb.st_mode))
+ return;
+
+ error = ioctl(fd, DIOCGMEDIASIZE, &mediasize);
+ if (error != 0)
+ errx(1, "%s: not a disk", path);
+}
+
+int
+main(int argc, char **argv)
+{
+ int ch, error, i, nbytes;
+ bool ignore_type = false, show_label = false;
+ char label[LABEL_LEN + 1], strvised[LABEL_LEN * 4 + 1];
+ char *path;
+ FILE *fp;
+ fstyp_function fstyp_f;
+
+ while ((ch = getopt(argc, argv, "ls")) != -1) {
+ switch (ch) {
+ case 'l':
+ show_label = true;
+ break;
+ case 's':
+ ignore_type = true;
+ break;
+ default:
+ usage();
+ }
+ }
+
+ argc -= optind;
+ argv += optind;
+ if (argc != 1)
+ usage();
+
+ path = argv[0];
+
+ fp = fopen(path, "r");
+ if (fp == NULL)
+ err(1, "%s", path);
+
+ error = cap_enter();
+ if (error != 0 && errno != ENOSYS)
+ err(1, "cap_enter");
+
+ if (ignore_type == false)
+ type_check(path, fp);
+
+ memset(label, '\0', sizeof(label));
+
+ for (i = 0;; i++) {
+ fstyp_f = fstypes[i].function;
+ if (fstyp_f == NULL)
+ break;
+
+ error = fstyp_f(fp, label, sizeof(label));
+ if (error == 0)
+ break;
+ }
+
+ if (fstypes[i].name == NULL) {
+ warnx("%s: filesystem not recognized", path);
+ return (1);
+ }
+
+ if (show_label && label[0] != '\0') {
+ /*
+ * XXX: I'd prefer VIS_HTTPSTYLE, but it unconditionally
+ * encodes spaces.
+ */
+ nbytes = strsnvis(strvised, sizeof(strvised), label,
+ VIS_GLOB | VIS_NL, "\"'$");
+ if (nbytes == -1)
+ err(1, "strsnvis");
+
+ printf("%s %s\n", fstypes[i].name, strvised);
+ } else {
+ printf("%s\n", fstypes[i].name);
+ }
+
+ return (0);
+}
Added: head/usr.sbin/fstyp/fstyp.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/fstyp.h Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,46 @@
+/*-
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef FSTYP_H
+#define FSTYP_H
+
+#define MIN(a,b) (((a)<(b))?(a):(b))
+
+void *read_buf(FILE *fp, off_t off, size_t len);
+char *checked_strdup(const char *s);
+
+int fstyp_cd9660(FILE *fp, char *label, size_t size);
+int fstyp_ext2fs(FILE *fp, char *label, size_t size);
+int fstyp_msdosfs(FILE *fp, char *label, size_t size);
+int fstyp_ntfs(FILE *fp, char *label, size_t size);
+int fstyp_ufs(FILE *fp, char *label, size_t size);
+
+#endif /* !FSTYP_H */
Added: head/usr.sbin/fstyp/msdosfs.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/msdosfs.c Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,183 @@
+/*-
+ * Copyright (c) 2004 Pawel Jakub Dawidek <pjd at FreeBSD.org>
+ * Copyright (c) 2006 Tobias Reifenberger
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fstyp.h"
+#include "msdosfs.h"
+
+#define LABEL_NO_NAME "NO NAME "
+
+int
+fstyp_msdosfs(FILE *fp, char *label, size_t size)
+{
+ FAT_BSBPB *pfat_bsbpb;
+ FAT32_BSBPB *pfat32_bsbpb;
+ FAT_DES *pfat_entry;
+ uint8_t *sector0, *sector;
+ uint32_t i;
+
+ sector0 = NULL;
+ sector = NULL;
+
+ /* Load 1st sector with boot sector and boot parameter block. */
+ sector0 = (uint8_t *)read_buf(fp, 0, 512);
+ if (sector0 == NULL)
+ return (1);
+
+ /* Check for the FAT boot sector signature. */
+ if (sector0[510] != 0x55 || sector0[511] != 0xaa) {
+ goto error;
+ }
+
+ /*
+ * Test if this is really a FAT volume and determine the FAT type.
+ */
+
+ pfat_bsbpb = (FAT_BSBPB *)sector0;
+ pfat32_bsbpb = (FAT32_BSBPB *)sector0;
+
+ if (UINT16BYTES(pfat_bsbpb->BPB_FATSz16) != 0) {
+ /*
+ * If the BPB_FATSz16 field is not zero and the string "FAT" is
+ * at the right place, this should be a FAT12 or FAT16 volume.
+ */
+ if (strncmp(pfat_bsbpb->BS_FilSysType, "FAT", 3) != 0) {
+ goto error;
+ }
+
+ /* A volume with no name should have "NO NAME " as label. */
+ if (strncmp(pfat_bsbpb->BS_VolLab, LABEL_NO_NAME,
+ sizeof(pfat_bsbpb->BS_VolLab)) == 0) {
+ goto endofchecks;
+ }
+ strlcpy(label, pfat_bsbpb->BS_VolLab,
+ MIN(size, sizeof(pfat_bsbpb->BS_VolLab) + 1));
+ } else if (UINT32BYTES(pfat32_bsbpb->BPB_FATSz32) != 0) {
+ uint32_t fat_FirstDataSector, fat_BytesPerSector, offset;
+
+ /*
+ * If the BPB_FATSz32 field is not zero and the string "FAT" is
+ * at the right place, this should be a FAT32 volume.
+ */
+ if (strncmp(pfat32_bsbpb->BS_FilSysType, "FAT", 3) != 0) {
+ goto error;
+ }
+
+ /*
+ * If the volume label is not "NO NAME " we're done.
+ */
+ if (strncmp(pfat32_bsbpb->BS_VolLab, LABEL_NO_NAME,
+ sizeof(pfat32_bsbpb->BS_VolLab)) != 0) {
+ strlcpy(label, pfat32_bsbpb->BS_VolLab,
+ MIN(size, sizeof(pfat32_bsbpb->BS_VolLab) + 1));
+ goto endofchecks;
+ }
+
+ /*
+ * If the volume label "NO NAME " is in the boot sector, the
+ * label of FAT32 volumes may be stored as a special entry in
+ * the root directory.
+ */
+ fat_FirstDataSector =
+ UINT16BYTES(pfat32_bsbpb->BPB_RsvdSecCnt) +
+ (pfat32_bsbpb->BPB_NumFATs *
+ UINT32BYTES(pfat32_bsbpb->BPB_FATSz32));
+ fat_BytesPerSector = UINT16BYTES(pfat32_bsbpb->BPB_BytsPerSec);
+
+ // fat_FirstDataSector, fat_BytesPerSector);
+
+ for (offset = fat_BytesPerSector * fat_FirstDataSector;;
+ offset += fat_BytesPerSector) {
+ sector = (uint8_t *)read_buf(fp, offset, fat_BytesPerSector);
+ if (sector == NULL)
+ goto error;
+
+ pfat_entry = (FAT_DES *)sector;
+ do {
+ /* No more entries available. */
+ if (pfat_entry->DIR_Name[0] == 0) {
+ goto endofchecks;
+ }
+
+ /* Skip empty or long name entries. */
+ if (pfat_entry->DIR_Name[0] == 0xe5 ||
+ (pfat_entry->DIR_Attr &
+ FAT_DES_ATTR_LONG_NAME) ==
+ FAT_DES_ATTR_LONG_NAME) {
+ continue;
+ }
+
+ /*
+ * The name of the entry is the volume label if
+ * ATTR_VOLUME_ID is set.
+ */
+ if (pfat_entry->DIR_Attr &
+ FAT_DES_ATTR_VOLUME_ID) {
+ strlcpy(label, pfat_entry->DIR_Name,
+ MIN(size,
+ sizeof(pfat_entry->DIR_Name) + 1));
+ goto endofchecks;
+ }
+ } while((uint8_t *)(++pfat_entry) <
+ (uint8_t *)(sector + fat_BytesPerSector));
+ free(sector);
+ }
+ } else {
+ goto error;
+ }
+
+endofchecks:
+ for (i = size - 1; i > 0; i--) {
+ if (label[i] == '\0')
+ continue;
+ else if (label[i] == ' ')
+ label[i] = '\0';
+ else
+ break;
+ }
+
+ free(sector0);
+ free(sector);
+
+ return (0);
+
+error:
+ free(sector0);
+ free(sector);
+
+ return (1);
+}
Added: head/usr.sbin/fstyp/msdosfs.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/msdosfs.h Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,140 @@
+/*-
+ * Copyright (c) 2006 Tobias Reifenberger
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/types.h>
+
+/*
+ * Conversion macros for little endian encoded unsigned integers
+ * in byte streams to the local unsigned integer format.
+ */
+#define UINT16BYTES(p) ((uint32_t)((p)[0] + (256*(p)[1])))
+#define UINT32BYTES(p) ((uint32_t)((p)[0] + (256*(p)[1]) + \
+ (65536*(p)[2]) + (16777216*(p)[3])))
+
+/*
+ * All following structures are according to:
+ *
+ * Microsoft Extensible Firmware Initiative FAT32 File System Specification
+ * FAT: General Overview of On-Disk Format
+ * Version 1.03, December 6, 2000
+ * Microsoft Corporation
+ */
+
+/*
+ * FAT boot sector and boot parameter block for
+ * FAT12 and FAT16 volumes
+ */
+typedef struct fat_bsbpb {
+ /* common fields */
+ uint8_t BS_jmpBoot[3];
+ uint8_t BS_OEMName[8];
+ uint8_t BPB_BytsPerSec[2];
+ uint8_t BPB_SecPerClus;
+ uint8_t BPB_RsvdSecCnt[2];
+ uint8_t BPB_NumFATs;
+ uint8_t BPB_RootEntCnt[2];
+ uint8_t BPB_TotSec16[2];
+ uint8_t BPB_Media;
+ uint8_t BPB_FATSz16[2];
+ uint8_t BPB_SecPerTrack[2];
+ uint8_t BPB_NumHeads[2];
+ uint8_t BPB_HiddSec[4];
+ uint8_t BPB_TotSec32[4];
+ /* FAT12/FAT16 only fields */
+ uint8_t BS_DrvNum;
+ uint8_t BS_Reserved1;
+ uint8_t BS_BootSig;
+ uint8_t BS_VolID[4];
+ uint8_t BS_VolLab[11];
+ uint8_t BS_FilSysType[8];
+} FAT_BSBPB; /* 62 bytes */
+
+/*
+ * FAT boot sector and boot parameter block for
+ * FAT32 volumes
+ */
+typedef struct fat32_bsbpb {
+ /* common fields */
+ uint8_t BS_jmpBoot[3];
+ uint8_t BS_OEMName[8];
+ uint8_t BPB_BytsPerSec[2];
+ uint8_t BPB_SecPerClus;
+ uint8_t BPB_RsvdSecCnt[2];
+ uint8_t BPB_NumFATs;
+ uint8_t BPB_RootEntCnt[2];
+ uint8_t BPB_TotSec16[2];
+ uint8_t BPB_Media;
+ uint8_t BPB_FATSz16[2];
+ uint8_t BPB_SecPerTrack[2];
+ uint8_t BPB_NumHeads[2];
+ uint8_t BPB_HiddSec[4];
+ uint8_t BPB_TotSec32[4];
+ /* FAT32 only fields */
+ uint8_t BPB_FATSz32[4];
+ uint8_t BPB_ExtFlags[2];
+ uint8_t BPB_FSVer[2];
+ uint8_t BPB_RootClus[4];
+ uint8_t BPB_FSInfo[2];
+ uint8_t BPB_BkBootSec[2];
+ uint8_t BPB_Reserved[12];
+ uint8_t BS_DrvNum;
+ uint8_t BS_Reserved1;
+ uint8_t BS_BootSig;
+ uint8_t BS_VolID[4];
+ uint8_t BS_VolLab[11];
+ uint8_t BS_FilSysType[8];
+} FAT32_BSBPB; /* 90 bytes */
+
+/*
+ * FAT directory entry structure
+ */
+#define FAT_DES_ATTR_READ_ONLY 0x01
+#define FAT_DES_ATTR_HIDDEN 0x02
+#define FAT_DES_ATTR_SYSTEM 0x04
+#define FAT_DES_ATTR_VOLUME_ID 0x08
+#define FAT_DES_ATTR_DIRECTORY 0x10
+#define FAT_DES_ATTR_ARCHIVE 0x20
+#define FAT_DES_ATTR_LONG_NAME (FAT_DES_ATTR_READ_ONLY | \
+ FAT_DES_ATTR_HIDDEN | \
+ FAT_DES_ATTR_SYSTEM | \
+ FAT_DES_ATTR_VOLUME_ID)
+
+typedef struct fat_des {
+ uint8_t DIR_Name[11];
+ uint8_t DIR_Attr;
+ uint8_t DIR_NTRes;
+ uint8_t DIR_CrtTimeTenth;
+ uint8_t DIR_CrtTime[2];
+ uint8_t DIR_CrtDate[2];
+ uint8_t DIR_LstAccDate[2];
+ uint8_t DIR_FstClusHI[2];
+ uint8_t DIR_WrtTime[2];
+ uint8_t DIR_WrtDate[2];
+ uint8_t DIR_FstClusLO[2];
+ uint8_t DIR_FileSize[4];
+} FAT_DES;
Added: head/usr.sbin/fstyp/ntfs.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/usr.sbin/fstyp/ntfs.c Wed Dec 10 14:14:16 2014 (r275680)
@@ -0,0 +1,165 @@
+/*-
+ * Copyright (c) 2005 Takanori Watanabe
+ * Copyright (c) 2014 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Edward Tomasz Napierala under sponsorship
+ * from the FreeBSD Foundation.
+ *
+ * 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 AUTHOR 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 AUTHOR 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/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "fstyp.h"
+
+#define NTFS_A_VOLUMENAME 0x60
+#define NTFS_FILEMAGIC ((uint32_t)(0x454C4946))
+#define NTFS_VOLUMEINO 3
+
+#define G_LABEL_NTFS_DIR "ntfs"
+
+struct ntfs_attr {
+ uint32_t a_type;
+ uint32_t reclen;
+ uint8_t a_flag;
+ uint8_t a_namelen;
+ uint8_t a_nameoff;
+ uint8_t reserved1;
+ uint8_t a_compression;
+ uint8_t reserved2;
+ uint16_t a_index;
+ uint16_t a_datalen;
+ uint16_t reserved3;
+ uint16_t a_dataoff;
+ uint16_t a_indexed;
+} __packed;
+
+struct ntfs_filerec {
+ uint32_t fr_hdrmagic;
+ uint16_t fr_hdrfoff;
+ uint16_t fr_hdrfnum;
+ uint8_t reserved[8];
+ uint16_t fr_seqnum;
+ uint16_t fr_nlink;
+ uint16_t fr_attroff;
+ uint16_t fr_flags;
+ uint32_t fr_size;
+ uint32_t fr_allocated;
+ uint64_t fr_mainrec;
+ uint16_t fr_attrnum;
+} __packed;
+
+struct ntfs_bootfile {
+ uint8_t reserved1[3];
+ uint8_t bf_sysid[8];
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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