partinfo.c revision a6ce1349539f866334ef3d5758bc2ee44a454acd 
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 <sys/types.h>
11#include <fcntl.h>
12#ifdef HAVE_SYS_IOCTL_H
13#include <sys/ioctl.h>
14#endif
15#include <stdio.h>
16#include <linux/hdreg.h>
17#include <unistd.h>
18#include <stdlib.h>
19#include <errno.h>
20#include "nls-enable.h"
21
22#if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
23#define BLKGETSIZE _IO(0x12,96)	/* return device size */
24#endif
25
26int main(int argc, char **argv)
27{
28	struct hd_geometry loc;
29	int fd, i;
30	unsigned long size;
31
32#ifdef ENABLE_NLS
33	setlocale(LC_MESSAGES, "");
34	setlocale(LC_CTYPE, "");
35	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
36	textdomain(NLS_CAT_NAME);
37#endif
38	if (argc == 1) {
39		fprintf(stderr, _("Usage:  %s device...\n\nPrints out the "
40			"partition information for each given device.\n"
41			"For example: %s /dev/hda\n\n"), argv[0], argv[0]);
42		exit(1);
43	}
44
45	for (i=1; i < argc; i++) {
46		fd = open(argv[i], O_RDONLY);
47
48		if (fd < 0) {
49			fprintf(stderr, _("Cannot open %s: %s"),
50				argv[i], strerror(errno));
51			continue;
52		}
53
54		if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
55			fprintf(stderr, _("Cannot get geometry of %s: %s"),
56				argv[i], strerror(errno));
57			close(fd);
58			continue;
59		}
60
61
62		if (ioctl(fd, BLKGETSIZE, &size) < 0) {
63			fprintf(stderr, _("Cannot get size of %s: %s"),
64				argv[i], strerror(errno));
65			close(fd);
66			continue;
67		}
68
69		printf(_("%s: h=%3d s=%3d c=%4d   start=%8d size=%8lu end=%8d\n"),
70		       argv[i],
71		       loc.heads, (int)loc.sectors, loc.cylinders,
72		       (int)loc.start, size, (int) loc.start + size -1);
73		close(fd);
74	}
75	exit(0);
76}
77