zip_fread - read from file
       libzip (-lzip)
       #include <zip.h>
       int zip_fread(struct zip_file *file, void *buf, int nbytes);
       The zip_fread function reads at most nbytes bytes from file into buf.
       If   successful,  the  number  of  bytes  actually  read  is  returned.
       Otherwise, -1 is returned.
       libzip(3), zip_fclose(3), zip_fopen(3)
       Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>