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 #include <stdio.h>
  13 #include <linux/hdreg.h>
  14 #include <unistd.h>
  15 #include <stdlib.h>
  16 #include <errno.h>
  17 #include "nls-enable.h"
  18
  19 void print_error(char *operation, int error, char *device)
  20 {
  21         fprintf(stderr, _("%s failed for %s: %s\n"), operation, device,
  22                 strerror(error));
  23 }
  24
  25 int main(int argc, char **argv)
  26 {
  27         struct hd_geometry loc;
  28         int fd, i;
  29         unsigned long size;
  30
  31 #ifdef ENABLE_NLS
  32         setlocale(LC_MESSAGES, "");
  33         setlocale(LC_CTYPE, "");
  34         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
  35         textdomain(NLS_CAT_NAME);
  36 #endif
  37         if (argc == 1) {
  38                 fprintf(stderr, _("Usage: %s <dev1> <dev2> <dev3>\n\n"
  39                         "This program prints out the partition information "
  40                         "for a set of devices\n"
  41                         "A common way to use this program is:\n\n\t"
  42                         "%s /dev/hda?\n\n"), argv[0], argv[0]);
  43                 exit(1);
  44         }
  45
  46         for (i=1; i < argc; i++) {
  47                 fd = open(argv[i], O_RDONLY);
  48
  49                 if (fd < 0) {
  50                         print_error("open", errno, argv[i]);
  51                         continue;
  52                 }
  53
  54                 if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
  55                         print_error(_("HDIO_GETGEO ioctl"), errno, argv[i]);
  56                         close(fd);
  57                         continue;
  58                 }
  59
  60
  61                 if (ioctl(fd, BLKGETSIZE, &size) < 0) {
  62                         print_error(_("BLKGETSIZE ioctl"), errno, argv[i]);
  63                         close(fd);
  64                         continue;
  65                 }
  66
  67                 printf("%s: h=%3d s=%3d c=%4d   start=%8d size=%8lu end=%8d\n",
  68                        argv[i],
  69                        loc.heads, (int)loc.sectors, loc.cylinders,
  70                        (int)loc.start, size, (int) loc.start + size -1);
  71                 close(fd);
  72         }
  73         exit(0);
  74 }