proc SPF_dns_test_new(layer_below: SPF_dns_server; name: cstring; debug: cint): SPF_dns_server {.
    importc, header: "spf_dns_test.h", ...raises: [], tags: [], forbids: [].}

proc SPF_dns_zone_add_str(spf_dns_server: SPF_dns_server; domain: cstring;
                          rr_type: cint; herrno: SPF_dns_stat_t; data: cstring): SPF_errcode_t {.
    importc, header: "spf_dns_zone.h", ...raises: [], tags: [], forbids: [].}

proc SPF_dns_zone_new(layer_below: SPF_dns_server; name: cstring; debug: cint): SPF_dns_server {.
    importc, header: "spf_dns_zone.h", ...raises: [], tags: [], forbids: [].}