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blkid: add fallthrough comment
[tools/e2fsprogs.git] / misc / partinfo.c
1 /*
2  * partinfo.c
3  *
4  * Originally written by Alain Knaff, <alknaff@innet.lu>.
5  *
6  * Cleaned up by Theodore Ts'o, <tytso@mit.edu>.
7  *
8  */
9
10 #include "config.h"
11 #include <sys/types.h>
12 #include <fcntl.h>
13 #ifdef HAVE_SYS_IOCTL_H
14 #include <sys/ioctl.h>
15 #endif
16 #include <stdio.h>
17 #include <linux/hdreg.h>
18 #include <unistd.h>
19 #include <stdlib.h>
20 #include <errno.h>
21 #include "nls-enable.h"
22
23 #if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
24 #define BLKGETSIZE _IO(0x12,96) /* return device size */
25 #endif
26
27 int main(int argc, char **argv)
28 {
29         struct hd_geometry loc;
30         int fd, i;
31         unsigned long size;
32
33 #ifdef ENABLE_NLS
34         setlocale(LC_MESSAGES, "");
35         setlocale(LC_CTYPE, "");
36         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
37         textdomain(NLS_CAT_NAME);
38         set_com_err_gettext(gettext);
39 #endif
40         if (argc == 1) {
41                 fprintf(stderr, _("Usage:  %s device...\n\nPrints out the "
42                         "partition information for each given device.\n"
43                         "For example: %s /dev/hda\n\n"), argv[0], argv[0]);
44                 exit(1);
45         }
46
47         for (i=1; i < argc; i++) {
48                 fd = open(argv[i], O_RDONLY);
49
50                 if (fd < 0) {
51                         fprintf(stderr, _("Cannot open %s: %s"),
52                                 argv[i], strerror(errno));
53                         continue;
54                 }
55
56                 if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
57                         fprintf(stderr, _("Cannot get geometry of %s: %s"),
58                                 argv[i], strerror(errno));
59                         close(fd);
60                         continue;
61                 }
62
63
64                 if (ioctl(fd, BLKGETSIZE, &size) < 0) {
65                         fprintf(stderr, _("Cannot get size of %s: %s"),
66                                 argv[i], strerror(errno));
67                         close(fd);
68                         continue;
69                 }
70
71                 printf(_("%s: h=%3d s=%3d c=%4d   start=%8d size=%8lu end=%8d\n"),
72                        argv[i],
73                        loc.heads, (int)loc.sectors, loc.cylinders,
74                        (int)loc.start, size, (int) loc.start + size -1);
75                 close(fd);
76         }
77         exit(0);
78 }