* syscalls.cc (stat64_to_stat32): Transform st_dev correctly.

(fstat64): Add evaluating st_ino and st_dev.
	(stat_worker): Evaluate st_dev as 32 bit value.
	* include/cygwin/stat.h: Use new dev_t definition throughout.
	* include/cygwin/types.h: Define __dev16_t and __dev32_t.  Define
	dev_t according to __CYGWIN_USE_BIG_TYPES__ setting.
	* include/sys/sysmacros.h: Define major, minor and makedev
	according to __CYGWIN_USE_BIG_TYPES__ setting.

winsup/cygwin/ChangeLog

@@ -1,3 +1,14 @@
+2002-06-03  Corinna Vinschen  <corinna@vinschen.de>
+
+	* syscalls.cc (stat64_to_stat32): Transform st_dev correctly.
+	(fstat64): Add evaluating st_ino and st_dev.
+	(stat_worker): Evaluate st_dev as 32 bit value.
+	* include/cygwin/stat.h: Use new dev_t definition throughout.
+	* include/cygwin/types.h: Define __dev16_t and __dev32_t.  Define
+	dev_t according to __CYGWIN_USE_BIG_TYPES__ setting.
+	* include/sys/sysmacros.h: Define major, minor and makedev
+	according to __CYGWIN_USE_BIG_TYPES__ setting.
+
 2002-06-03  Pierre Humblet <pierre.humblet@ieee.org>
 
 	* syscalls.cc (setegid32): Verify the correctness of the gid

winsup/cygwin/include/cygwin/stat.h

@@ -19,13 +19,13 @@ extern "C" {
 #ifdef __INSIDE_CYGWIN__
 struct __stat32
 {
-  dev_t         st_dev;
+  __dev16_t     st_dev;
   ino_t         st_ino;
   mode_t        st_mode;
   nlink_t       st_nlink;
   __uid16_t     st_uid;
   __gid16_t     st_gid;
-  dev_t         st_rdev;
+  __dev16_t     st_rdev;
   __off32_t     st_size;
   time_t        st_atime;
   long          st_spare1;
@@ -40,13 +40,13 @@ struct __stat32
 
 struct __stat64
 {
-  dev_t         st_dev;
+  __dev32_t     st_dev;
   ino_t         st_ino;
   mode_t        st_mode;
   nlink_t       st_nlink;
   __uid32_t     st_uid;
   __gid32_t     st_gid;
-  dev_t         st_rdev;
+  __dev32_t     st_rdev;
   __off64_t     st_size;
   time_t        st_atime;
   long          st_spare1;

winsup/cygwin/include/cygwin/types.h

@@ -27,6 +27,14 @@ typedef __off64_t off_t;
 typedef __off32_t off_t;
 #endif
 
+typedef short __dev16_t;
+typedef unsigned long __dev32_t;
+#ifdef __CYGWIN_USE_BIG_TYPES__
+typedef __dev32_t dev_t;
+#else
+typedef __dev16_t dev_t;
+#endif
+
 typedef long blksize_t;
 
 typedef long __blkcnt32_t;

winsup/cygwin/include/sys/sysmacros.h

@@ -11,8 +11,14 @@ details. */
 #ifndef _SYS_SYSMACROS_H
 #define _SYS_SYSMACROS_H
 
+#ifdef __CYGWIN_USE_BIG_TYPES__
+#define major(dev) ((int)(((dev) >> 16) & 0xffff))
+#define minor(dev) ((int)((dev) & 0xffff))
+#define makedev(major, minor) (((major) << 16) | ((minor) & 0xffff))
+#else
 #define major(dev) ((int)(((dev) >> 8) & 0xff))
 #define minor(dev) ((int)((dev) & 0xff))
-#define makedev(major, minor) (((major) << 8) | (minor))
+#define makedev(major, minor) (((major) << 8) | ((minor) & 0xff))
+#endif
 
 #endif /* _SYS_SYSMACROS_H */

winsup/cygwin/syscalls.cc

@@ -985,7 +985,7 @@ fchmod (int fd, mode_t mode)
 static void
 stat64_to_stat32 (struct __stat64 *src, struct __stat32 *dst)
 {
-  dst->st_dev = src->st_dev;
+  dst->st_dev = ((src->st_dev >> 8) & 0xff00) | (src->st_dev & 0xff);
   dst->st_ino = src->st_ino;
   dst->st_mode = src->st_mode;
   dst->st_nlink = src->st_nlink;
@@ -1014,6 +1014,13 @@ fstat64 (int fd, struct __stat64 *buf)
       path_conv pc (cfd->get_win32_name ());
       memset (buf, 0, sizeof (struct __stat64));
       res = cfd->fstat (buf, &pc);
+      if (!res)
+	{
+	  if (!buf->st_ino)
+	    buf->st_ino = hash_path_name (0, cfd->get_win32_name ());
+	  if (!buf->st_dev)
+	    buf->st_dev = (cfd->get_device () << 16) | cfd->get_unit ();
+	}
     }
 
   syscall_printf ("%d = fstat (%d, %p)", res, fd, buf);
@@ -1100,7 +1107,7 @@ stat_worker (const char *name, struct __stat64 *buf, int nofollow,
 	  if (!buf->st_ino)
 	    buf->st_ino = hash_path_name (0, fh->get_win32_name ());
 	  if (!buf->st_dev)
-	    buf->st_dev = FHDEVN (fh->get_device ()) << 8 | (fh->get_unit () & 0xff);
+	    buf->st_dev = (fh->get_device () << 16) | fh->get_unit ();
 	}
     }