grub-core/osdep/haiku/getroot.c

   1 #include <config.h>
   2 #include <config-util.h>
   3 #include <sys/types.h>
   4 #include <sys/stat.h>
   5 #include <string.h>
   6 #include <errno.h>
   7 #include <stdint.h>
   8 #include <grub/util/misc.h>
   9 #include <grub/emu/hostdisk.h>
  10 #include <grub/emu/getroot.h>
  11 #include <fs_info.h>
  12 #include <Drivers.h>
  13 #include <StorageDefs.h>
  14
  15 enum grub_dev_abstraction_types
  16 grub_util_get_dev_abstraction_os (const char *os_dev __attribute__((unused)))
  17 {
  18   return GRUB_DEV_ABSTRACTION_NONE;
  19 }
  20
  21 int
  22 grub_util_pull_device_os (const char *os_dev __attribute__ ((unused)),
  23                           enum grub_dev_abstraction_types ab __attribute__ ((unused)))
  24 {
  25   return 0;
  26 }
  27
  28 char *
  29 grub_util_get_grub_dev_os (const char *os_dev __attribute__ ((unused)))
  30 {
  31   return NULL;
  32 }
  33
  34 char **
  35 grub_guess_root_devices (const char *dir_in)
  36 {
  37   dev_t dv = dev_for_path (dir_in);
  38   fs_info inf;
  39   char **ret;
  40   if (fs_stat_dev (dv, &inf) != B_OK)
  41     return NULL;
  42   ret = xmalloc (2 * sizeof (ret[0]));
  43   ret[0] = xstrdup (inf.device_name);
  44   ret[1] = NULL;
  45   return ret;
  46 }
  47
  48 grub_disk_addr_t
  49 grub_util_find_partition_start_os (const char *dev)
  50 {
  51   partition_info part;
  52   grub_disk_addr_t ret;
  53   int fd = open (dev, O_RDONLY);
  54   if (fd < 0)
  55     return 0;
  56   if (ioctl (fd, B_GET_PARTITION_INFO, &part, sizeof (part)) < 0)
  57     {
  58       close (fd);
  59       return 0;
  60     }
  61   ret = part.offset;
  62   close (fd);
  63   fd = open (part.device, O_RDONLY);
  64
  65   device_geometry geo;
  66   if (ioctl (fd, B_GET_GEOMETRY, &geo, sizeof (geo)) < 0)
  67     return 0;
  68   ret /= geo.bytes_per_sector ? : 512;
  69   close (fd);
  70   return ret;
  71 }
  72
  73 char *
  74 grub_util_part_to_disk (const char *os_dev,
  75                         struct stat *st __attribute__ ((unused)),
  76                         int *is_part)
  77 {
  78   char *ret;
  79   partition_info part;
  80   int fd = open (os_dev, O_RDONLY);
  81   *is_part = 0;
  82
  83   if (fd < 0)
  84     return xstrdup (os_dev);
  85   if (ioctl (fd, B_GET_PARTITION_INFO, &part, sizeof (part)) < 0)
  86     {
  87       close (fd);
  88       return xstrdup (os_dev);
  89     }
  90   ret = xstrdup (part.device);
  91   close (fd);
  92   *is_part=1;
  93   return ret;
  94 }
  95
  96 int
  97 grub_util_biosdisk_is_floppy (grub_disk_t disk)
  98 {
  99   const char *dname;
 100
 101   dname = grub_util_biosdisk_get_osdev (disk);
 102
 103   return (strncmp (dname, "/dev/disk/floppy/", sizeof ("/dev/disk/floppy/") - 1)
 104           == 0);
 105 }