diff options
Diffstat (limited to 'delta.h')
| -rw-r--r-- | delta.h | 12 |
1 files changed, 9 insertions, 3 deletions
@@ -24,6 +24,13 @@ 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 * * This function may be called multiple times with different buffers using @@ -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; |