/*
* 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
*
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;