[2204] 2009-05-13 Pavel Roskin <[email protected]>

Revision: 2204
          http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2204
Author:   proski
Date:     2009-05-13 19:16:55 +0000 (Wed, 13 May 2009)
Log Message:
-----------
2009-05-13  Pavel Roskin  <[email protected]>

	* fs/cpio.c: Use the same name "struct head" for tar and cpio to
	facilitate code reuse.
	(grub_cpio_mount): Use "struct head", not a char buffer.  This
	fixes a warning reported by gcc 4.4.

Modified Paths:
--------------
    trunk/grub2/ChangeLog
    trunk/grub2/fs/cpio.c

Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog	2009-05-13 18:58:38 UTC (rev 2203)
+++ trunk/grub2/ChangeLog	2009-05-13 19:16:55 UTC (rev 2204)
@@ -1,5 +1,10 @@
 2009-05-13  Pavel Roskin  <[email protected]>
 
+	* fs/cpio.c: Use the same name "struct head" for tar and cpio to
+	facilitate code reuse.
+	(grub_cpio_mount): Use "struct head", not a char buffer.  This
+	fixes a warning reported by gcc 4.4.
+
 	* kernel/disk.c (grub_disk_read): Use void pointer for the
 	buffer.
 	(grub_disk_write): Use const void pointer for the buffer.

Modified: trunk/grub2/fs/cpio.c
===================================================================
--- trunk/grub2/fs/cpio.c	2009-05-13 18:58:38 UTC (rev 2203)
+++ trunk/grub2/fs/cpio.c	2009-05-13 19:16:55 UTC (rev 2204)
@@ -23,9 +23,10 @@
 #include <grub/disk.h>
 #include <grub/dl.h>
 
+#ifndef MODE_USTAR
+/* cpio support */
 #define	MAGIC_BCPIO	070707
-
-struct HEAD_BCPIO
+struct head
 {
   grub_uint16_t magic;
   grub_uint16_t dev;
@@ -41,10 +42,10 @@
   grub_uint16_t filesize_1;
   grub_uint16_t filesize_2;
 } __attribute__ ((packed));
-
+#else
+/* tar support */
 #define MAGIC_USTAR	"ustar"
-
-struct HEAD_USTAR
+struct head
 {
   char name[100];
   char mode[8];
@@ -63,9 +64,8 @@
   char devminor[8];
   char prefix[155];
 } __attribute__ ((packed));
+#endif
 
-#define HEAD_LENG	sizeof(struct HEAD_USTAR)
-
 struct grub_cpio_data
 {
   grub_disk_t disk;
@@ -81,7 +81,7 @@
 		     grub_uint32_t * ofs)
 {
 #ifndef MODE_USTAR
-      struct HEAD_BCPIO hd;
+      struct head hd;
 
       if (grub_disk_read
 	  (data->disk, 0, data->hofs, sizeof (hd), &hd))
@@ -117,7 +117,7 @@
       if (data->size & 1)
 	(*ofs)++;
 #else
-      struct HEAD_USTAR hd;
+      struct head hd;
 
       if (grub_disk_read
 	  (data->disk, 0, data->hofs, sizeof (hd), &hd))
@@ -146,17 +146,17 @@
 static struct grub_cpio_data *
 grub_cpio_mount (grub_disk_t disk)
 {
-  char hd[HEAD_LENG];
+  struct head hd;
   struct grub_cpio_data *data;
 
-  if (grub_disk_read (disk, 0, 0, sizeof (hd), hd))
+  if (grub_disk_read (disk, 0, 0, sizeof (hd), &hd))
     goto fail;
 
 #ifndef MODE_USTAR
-  if (((struct HEAD_BCPIO *) hd)->magic != MAGIC_BCPIO)
+  if (hd.magic != MAGIC_BCPIO)
 #else
-  if (grub_memcmp (((struct HEAD_USTAR *) hd)->magic, MAGIC_USTAR,
-			 sizeof (MAGIC_USTAR) - 1))
+  if (grub_memcmp (hd.magic, MAGIC_USTAR,
+		   sizeof (MAGIC_USTAR) - 1))
 #endif
     goto fail;