zip_add,
    zip_replace — add file to
    zip archive or replace file in zip archive (obsolete interface)
#include
  <zip.h>
zip_int64_t
  
  zip_add(zip_t
    *archive, const char
    *name, zip_source_t
    *source);
int
  
  zip_replace(zip_t
    *archive, zip_uint64_t
    index, zip_source_t
    *source);
zip_add() was added in libzip 0.6. In
    libzip 0.10 the return type was changed from int to
    zip_int64_t. It was deprecated in libzip 0.11, use
    zip_file_add() instead.
zip_replace() was added in libzip 0.6. In
    libzip 0.10 the type of index was changed from
    int to zip_uint64_t. It was
    deprecated in libzip 0.11, use zip_file_replace()
    instead.