+ API for extracting and setting extra fields
+ API for extracting and setting extra fields

det/libzip,cysp/libzip,projedi/libzip,projedi/libzip,projedi/libzip,JanX2/libzip-git,cysp/libzip,JanX2/libzip-git,cysp/libzip,det/libzip,cysp/libzip,projedi/libzip,det/libzip,det/libzip