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 "support/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 }
79