X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fdentry.c;h=f986f9df12fbfe02624b70bbc66dee964565028c;hp=47a6175d789bbd3579a2d5ce381d80ddfa8d20b1;hb=19fd5bbc4f64cc8bf735f7c2c0bb864876998cf4;hpb=f5d26d6005ba759762bec8c7cd45a738e577a8a7;ds=sidebyside

diff --git a/src/dentry.c b/src/dentry.c
index 47a6175d..f986f9df 100644
--- a/src/dentry.c
+++ b/src/dentry.c
@@ -70,6 +70,8 @@ struct wim_ads_entry_on_disk {
 	utf16lechar stream_name[];
 } _packed_attribute;
 
+#define WIM_ADS_ENTRY_DISK_SIZE 38
+
 /* WIM directory entry (on-disk format) */
 struct wim_dentry_on_disk {
 	le64 length;
@@ -105,6 +107,8 @@ struct wim_dentry_on_disk {
 	/*utf16lechar short_name[];*/
 } _packed_attribute;
 
+#define WIM_DENTRY_DISK_SIZE 102
+
 /* Calculates the unaligned length, in bytes, of an on-disk WIM dentry that has
  * a file name and short name that take the specified numbers of bytes.  This
  * excludes any alternate data stream entries that may follow the dentry. */
@@ -1387,6 +1391,8 @@ read_ads_entries(const u8 * restrict p, struct wim_inode * restrict inode,
 	struct wim_ads_entry *ads_entries;
 	int ret;
 
+	BUILD_BUG_ON(sizeof(struct wim_ads_entry_on_disk) != WIM_ADS_ENTRY_DISK_SIZE);
+
 	/* Allocate an array for our in-memory representation of the alternate
 	 * data stream entries. */
 	num_ads = inode->i_num_ads;
@@ -1531,6 +1537,8 @@ read_dentry(const u8 * restrict metadata_resource, u64 metadata_resource_len,
 	const struct wim_dentry_on_disk *disk_dentry =
 			(const struct wim_dentry_on_disk*)p;
 
+	BUILD_BUG_ON(sizeof(struct wim_dentry_on_disk) != WIM_DENTRY_DISK_SIZE);
+
 	if ((uintptr_t)p & 7)
 		WARNING("WIM dentry is not 8-byte aligned");