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      1 /*
      2  * partinfo.c
      3  *
      4  * Originally written by Alain Knaff, <alknaff (at) innet.lu>.
      5  *
      6  * Cleaned up by Theodore Ts'o, <tytso (at) 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 
     26 int 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