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 <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 void print_error(char *operation, int error, char *device)
  27 {
  28         fprintf(stderr, _("%s failed for %s: %s\n"), operation, device,
  29                 strerror(error));
  30 }
  31
  32 int main(int argc, char **argv)
  33 {
  34         struct hd_geometry loc;
  35         int fd, i;
  36         unsigned long size;
  37
  38 #ifdef ENABLE_NLS
  39         setlocale(LC_MESSAGES, "");
  40         setlocale(LC_CTYPE, "");
  41         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
  42         textdomain(NLS_CAT_NAME);
  43 #endif
  44         if (argc == 1) {
  45                 fprintf(stderr, _("Usage:  %s device...\n\nPrints out the"
  46                         "partition information for each given device.\n"),
  47                         "For example: %s /dev/hda\n\n", argv[0], argv[0]);
  48                 exit(1);
  49         }
  50
  51         for (i=1; i < argc; i++) {
  52                 fd = open(argv[i], O_RDONLY);
  53
  54                 if (fd < 0) {
  55                         print_error(_("open"), errno, argv[i]);
  56                         continue;
  57                 }
  58
  59                 if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
  60                         print_error(_("HDIO_GETGEO ioctl"), errno, argv[i]);
  61                         close(fd);
  62                         continue;
  63                 }
  64
  65
  66                 if (ioctl(fd, BLKGETSIZE, &size) < 0) {
  67                         print_error(_("BLKGETSIZE ioctl"), errno, argv[i]);
  68                         close(fd);
  69                         continue;
  70                 }
  71
  72                 printf("%s: h=%3d s=%3d c=%4d   start=%8d size=%8lu end=%8d\n",
  73                        argv[i],
  74                        loc.heads, (int)loc.sectors, loc.cylinders,
  75                        (int)loc.start, size, (int) loc.start + size -1);
  76                 close(fd);
  77         }
  78         exit(0);
  79 }