Use the common size routine in hostfs so we can read disks as well.

* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors): Rename to ..
	(grub_util_get_fd_size): ... this. Return size in bytes.
	All users updated.
	* grub-core/kern/emu/hostfs.c (grub_hostfs_open): Use
	grub_util_get_fd_size.

ChangeLog

@@ -1,3 +1,13 @@
+2012-02-29  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	Use the common size routine in hostfs so we can read disks as well.
+
+	* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors): Rename to ..
+	(grub_util_get_fd_size): ... this. Return size in bytes.
+	All users updated.
+	* grub-core/kern/emu/hostfs.c (grub_hostfs_open): Use
+	grub_util_get_fd_size.
+
 2012-02-29  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors) [__APPLE__]:

grub-core/disk/geli.c

@@ -221,7 +221,8 @@ grub_util_get_geli_uuid (const char *dev)
   if (fd < 0)
     return NULL;
 
-  s = grub_util_get_fd_sectors (fd, dev, &log_secsize);
+  s = grub_util_get_fd_size (fd, dev, &log_secsize);
+  s >>= log_secsize;
   grub_util_fd_seek (fd, dev, (s << log_secsize) - 512);
 
   uuid = xmalloc (GRUB_MD_SHA256->mdlen * 2 + 1);

grub-core/kern/emu/hostdisk.c

@@ -240,7 +240,7 @@ grub_util_biosdisk_iterate (int (*hook) (const char *name),
 
 #if !defined(__MINGW32__)
 grub_uint64_t
-grub_util_get_fd_sectors (int fd, const char *name, unsigned *log_secsize)
+grub_util_get_fd_size (int fd, const char *name, unsigned *log_secsize)
 {
 # if defined(__NetBSD__)
   struct disklabel label;
@@ -304,16 +304,16 @@ grub_util_get_fd_sectors (int fd, const char *name, unsigned *log_secsize)
       *log_secsize = log_sector_size;
 
 # if defined (__APPLE__)
-    return nr;
+    return nr << log_sector_size;
 # elif defined(__NetBSD__)
-    return label.d_secperunit;
+    return label.d_secperunit << log_sector_size;
 # elif defined (__sun__)
-    return minfo.dki_capacity;
+    return minfo.dki_capacity << log_sector_size;
 # else
     if (nr & ((1 << log_sector_size) - 1))
       grub_util_error ("%s", _("unaligned device size"));
 
-    return (nr >> log_sector_size);
+    return nr;
 # endif
 
  fail:
@@ -329,7 +329,7 @@ grub_util_get_fd_sectors (int fd, const char *name, unsigned *log_secsize)
   if (log_secsize)
    *log_secsize = 9;
 
-  return st.st_size >> 9;
+  return st.st_size;
 }
 #endif
 
@@ -378,8 +378,9 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk)
       return grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("cannot open `%s': %s"),
 			 map[drive].device, strerror (errno));
 
-    disk->total_sectors = grub_util_get_fd_sectors (fd, map[drive].device,
+    disk->total_sectors = grub_util_get_fd_size (fd, map[drive].device,
-						    &disk->log_sector_size);
+						 &disk->log_sector_size);
+    disk->total_sectors >>= disk->log_sector_size;
 
 # if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__APPLE__) || defined(__NetBSD__)
     if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode))

grub-core/kern/emu/hostfs.c

@@ -24,6 +24,7 @@
 #include <grub/mm.h>
 #include <grub/dl.h>
 #include <grub/util/misc.h>
+#include <grub/emu/hostdisk.h>
 #include <grub/i18n.h>
 
 #include <dirent.h>
@@ -132,9 +133,7 @@ grub_hostfs_open (struct grub_file *file, const char *name)
 #ifdef __MINGW32__
   file->size = grub_util_get_disk_size (name);
 #else
-  fseeko (f, 0, SEEK_END);
+  file->size = grub_util_get_fd_size (fileno (f), name, NULL);
-  file->size = ftello (f);
-  fseeko (f, 0, SEEK_SET);
 #endif
 
   return GRUB_ERR_NONE;

include/grub/emu/hostdisk.h

@@ -59,7 +59,7 @@ grub_hostdisk_os_dev_to_grub_drive (const char *os_dev, int add);
 
 #if !defined(__MINGW32__)
 grub_uint64_t
-grub_util_get_fd_sectors (int fd, const char *name, unsigned *log_secsize);
+grub_util_get_fd_size (int fd, const char *name, unsigned *log_secsize);
 #endif
 
 char *