kvp_write_file
error = kvp_write_file(f, str, sub_str, addr);
error = kvp_write_file(ifcfg_file, "HWADDR", "", mac_addr);
error = kvp_write_file(ifcfg_file, "DEVICE", "", if_name);
error = kvp_write_file(nmfile, "interface-name", "", if_name);
error = kvp_write_file(nmfile, "mac-address", "", mac_addr);
error = kvp_write_file(ifcfg_file, "BOOTPROTO", "", "dhcp");
error = kvp_write_file(ifcfg_file, "BOOTPROTO", "", "none");
error = kvp_write_file(nmfile, "method", "",
error = kvp_write_file(nmfile, "method", "",
error = kvp_write_file(nmfile, "method", "",
error = kvp_write_file(nmfile, "method", "",
error = kvp_write_file(nmfile, "method", "",