2 * Copyright (c) 2016 The DragonFly Project
3 * Copyright (c) 2014 The FreeBSD Foundation
6 * This software was developed by Edward Tomasz Napierala under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/diskslice.h>
33 #include <sys/ioctl.h>
49 typedef int (*fstyp_function
)(FILE *, char *, size_t);
50 typedef int (*fsvtyp_function
)(const char *, char *, size_t);
54 fstyp_function function
;
57 { "cd9660", &fstyp_cd9660
, false },
58 { "ext2fs", &fstyp_ext2fs
, false },
59 { "msdosfs", &fstyp_msdosfs
, false },
60 { "ntfs", &fstyp_ntfs
, false },
61 { "ufs", &fstyp_ufs
, false },
62 { "hammer", &fstyp_hammer
, false },
68 fsvtyp_function function
;
71 { "hammer", &fsvtyp_hammer
, false }, /* Must be before partial */
72 { "hammer(partial)", &fsvtyp_hammer_partial
, true },
77 read_buf(FILE *fp
, off_t off
, size_t len
)
83 error
= fseek(fp
, off
, SEEK_SET
);
85 warn("cannot seek to %jd", (uintmax_t)off
);
91 warn("cannot malloc %zd bytes of memory", len
);
95 nread
= fread(buf
, len
, 1, fp
);
107 checked_strdup(const char *s
)
118 rtrim(char *label
, size_t size
)
122 for (i
= size
- 1; i
>= 0; i
--) {
123 if (label
[i
] == '\0')
125 else if (label
[i
] == ' ')
136 fprintf(stderr
, "usage: fstyp [-l] [-s] [-u] special\n");
141 type_check(const char *path
, FILE *fp
)
145 struct partinfo pinfo
;
149 error
= fstat(fd
, &sb
);
151 err(1, "%s: fstat", path
);
153 if (S_ISREG(sb
.st_mode
))
156 error
= ioctl(fd
, DIOCGPART
, &pinfo
);
158 errx(1, "%s: not a disk", path
);
162 main(int argc
, char **argv
)
164 int ch
, error
, i
, nbytes
;
165 bool ignore_type
= false, show_label
= false, show_unmountable
= false;
166 char label
[LABEL_LEN
+ 1], strvised
[LABEL_LEN
* 4 + 1];
168 const char *name
= NULL
;
170 fstyp_function fstyp_f
;
171 fsvtyp_function fsvtyp_f
;
173 while ((ch
= getopt(argc
, argv
, "lsu")) != -1) {
182 show_unmountable
= true;
196 fp
= fopen(path
, "r");
198 goto fsvtyp
; /* DragonFly */
200 if (ignore_type
== false)
201 type_check(path
, fp
);
203 memset(label
, '\0', sizeof(label
));
206 if (show_unmountable
== false && fstypes
[i
].unmountable
== true)
208 fstyp_f
= fstypes
[i
].function
;
212 error
= fstyp_f(fp
, label
, sizeof(label
));
214 name
= fstypes
[i
].name
;
220 if (show_unmountable
== false && fsvtypes
[i
].unmountable
== true)
222 fsvtyp_f
= fsvtypes
[i
].function
;
223 if (fsvtyp_f
== NULL
)
226 error
= fsvtyp_f(path
, label
, sizeof(label
));
228 name
= fsvtypes
[i
].name
;
233 warnx("%s: filesystem not recognized", path
);
236 if (show_label
&& label
[0] != '\0') {
238 * XXX: I'd prefer VIS_HTTPSTYLE, but it unconditionally
240 * XXX: DragonFly doesn't have strsnvis().
242 nbytes
= strnvis(strvised
, label
, sizeof(strvised
),
247 printf("%s %s\n", name
, strvised
);
249 printf("%s\n", name
);