Implement zip_get_num_entries.

--HG--
branch : HEAD
diff --git a/lib/zip.h b/lib/zip.h
index 261e550..af8d76a 100644
--- a/lib/zip.h
+++ b/lib/zip.h
@@ -233,7 +233,8 @@
 ZIP_EXTERN const char *zip_get_file_extra(struct zip *, zip_uint64_t,
 					  int *, int);
 ZIP_EXTERN const char *zip_get_name(struct zip *, zip_uint64_t, int);
-ZIP_EXTERN int zip_get_num_files(struct zip *);
+ZIP_EXTERN zip_uint64_t zip_get_num_entries(struct zip *, int);
+ZIP_EXTERN int zip_get_num_files(struct zip *);  /* deprecated, use zip_get_num_entries instead */
 ZIP_EXTERN int zip_name_locate(struct zip *, const char *, int);
 ZIP_EXTERN struct zip *zip_open(const char *, int, int *);
 ZIP_EXTERN int zip_rename(struct zip *, zip_uint64_t, const char *);