X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=delta.h;h=b9d333dd5a1c64ab35159ed608cf942951504f84;hb=50c94032844bb184cdeff7779be3b6a23e04d312;hp=727ae30e9eb973b2bd4a512be78041fee40fa039;hpb=975bf9cf5ad5d440f98f464ae8124609a4835ce1;p=git.git

diff --git a/delta.h b/delta.h
index 727ae30e9..b9d333dd5 100644
--- a/delta.h
+++ b/delta.h
@@ -18,9 +18,18 @@ create_delta_index(const void *buf, unsigned long bufsize);
 
 /*
  * free_delta_index: free the index created by create_delta_index()
+ *
+ * Given pointer must be what create_delta_index() returned, or NULL.
  */
 extern void free_delta_index(struct delta_index *index);
 
+/*
+ * sizeof_delta_index: returns memory usage of delta index
+ *
+ * Given pointer must be what create_delta_index() returned, or NULL.
+ */
+extern unsigned long sizeof_delta_index(struct delta_index *index);
+
 /*
  * create_delta: create a delta from given index for the given buffer
  *
@@ -81,12 +90,11 @@ static inline unsigned long get_delta_hdr_size(const unsigned char **datap,
 					       const unsigned char *top)
 {
 	const unsigned char *data = *datap;
-	unsigned char cmd;
-	unsigned long size = 0;
+	unsigned long cmd, size = 0;
 	int i = 0;
 	do {
 		cmd = *data++;
-		size |= (cmd & ~0x80) << i;
+		size |= (cmd & 0x7f) << i;
 		i += 7;
 	} while (cmd & 0x80 && data < top);
 	*datap = data;