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 "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 <string.h>
  22 #include "support/nls-enable.h"
  23 #include "et/com_err.h"
  24
  25 #if defined(__linux__) && defined(_IO) && !defined(BLKGETSIZE)
  26 #define BLKGETSIZE _IO(0x12,96) /* return device size */
  27 #endif
  28
  29 int main(int argc, char **argv)
  30 {
  31         struct hd_geometry loc;
  32         int fd, i;
  33         unsigned long size;
  34
  35 #ifdef ENABLE_NLS
  36         setlocale(LC_MESSAGES, "");
  37         setlocale(LC_CTYPE, "");
  38         bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
  39         textdomain(NLS_CAT_NAME);
  40         set_com_err_gettext(gettext);
  41 #endif
  42         if (argc == 1) {
  43                 fprintf(stderr, _("Usage:  %s device...\n\nPrints out the "
  44                         "partition information for each given device.\n"
  45                         "For example: %s /dev/hda\n\n"), argv[0], argv[0]);
  46                 exit(1);
  47         }
  48
  49         for (i=1; i < argc; i++) {
  50                 fd = open(argv[i], O_RDONLY);
  51
  52                 if (fd < 0) {
  53                         fprintf(stderr, _("Cannot open %s: %s"),
  54                                 argv[i], strerror(errno));
  55                         continue;
  56                 }
  57
  58                 if (ioctl(fd, HDIO_GETGEO, &loc) < 0) {
  59                         fprintf(stderr, _("Cannot get geometry of %s: %s"),
  60                                 argv[i], strerror(errno));
  61                         close(fd);
  62                         continue;
  63                 }
  64
  65
  66                 if (ioctl(fd, BLKGETSIZE, &size) < 0) {
  67                         fprintf(stderr, _("Cannot get size of %s: %s"),
  68                                 argv[i], strerror(errno));
  69                         close(fd);
  70                         continue;
  71                 }
  72
  73                 printf(_("%s: h=%3d s=%3d c=%4d   start=%8d size=%8lu end=%8d\n"),
  74                        argv[i],
  75                        loc.heads, (int)loc.sectors, loc.cylinders,
  76                        (int)loc.start, size, (int) loc.start + size -1);
  77                 close(fd);
  78         }
  79         exit(0);
  80 }