// SPDX-FileCopyrightText: Matteo Settenvini <matteo.settenvini@montecristosoftware.eu>
// SPDX-License-Identifier: GPL-3.0-or-later

#include "get_host.hh"
#include "helpers.hh"
#include "logger.hh"
#include "user_policy.hh"

namespace /* anonymous */ {

static const malcontent::UserPolicy USER_POLICY;

} // ~ namespace anonymous


auto malcontent::get_host::by_name(ResolverArgs& args) -> nss_status {
    set_if_valid(args.errnop, 0);
    set_if_valid(args.h_errnop, HErrno::Success);

    try {
        auto resolver = USER_POLICY.resolver({});
        if (!resolver) {
            return nss_status::NSS_STATUS_NOTFOUND;
        }
        return resolver->resolve(args);
    } catch(const std::exception& e) {
        Logger::error(e.what());
        return nss_status::NSS_STATUS_UNAVAIL;
    }
}

auto malcontent::get_host::by_addr(
    const void * /* addr */,
    socklen_t /* len */,
    int /* family */,
    hostent * /* host */,
    char * /* buffer */,
    size_t /* buflen */,
    int *errnop,
    HErrno *h_errnop,
    int32_t * /* ttlp */
) -> nss_status {
    set_if_valid(errnop, 0);
    set_if_valid(h_errnop, HErrno::Success);

    // At the moment, we are not handling this function
    // in our module.
    //
    // We assume it is fine to go to the next module
    // in the nsswitch.conf list to get an authoritative
    // answer.
    //
    // The use case for reverse IP lookup
    // should not impact parental controls.

    return nss_status::NSS_STATUS_UNAVAIL;
}