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 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 }