X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=delta.h;h=b9d333dd5a1c64ab35159ed608cf942951504f84;hb=75b9a8a6d5aee29b1d0d03935531081e6180c0db;hp=7b3f86d85f71e47d11c40a4abbcd9d9f499a6636;hpb=75c3a5ccdf114b5485e4828db1923bf4a35b19e2;p=git.git

diff --git a/delta.h b/delta.h
index 7b3f86d85..b9d333dd5 100644
--- a/delta.h
+++ b/delta.h
@@ -23,6 +23,13 @@ create_delta_index(const void *buf, unsigned long bufsize);
  */
 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
  *
@@ -83,12 +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;