1 files changed, 131 insertions, 0 deletions
diff --git a/src/VBox/Main/src-server/HostDnsServiceResolvConf.cpp b/src/VBox/Main/src-server/HostDnsServiceResolvConf.cpp
new file mode 100644
index 00000000..7d2f2b59
--- /dev/null
+++ b/src/VBox/Main/src-server/HostDnsServiceResolvConf.cpp
@@ -0,0 +1,131 @@
+/* $Id: HostDnsServiceResolvConf.cpp $ */
+/** @file
+ * Base class for Host DNS & Co services.
+ */
+
+/*
+ * Copyright (C) 2014-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+/* -*- indent-tabs-mode: nil; -*- */
+#include <VBox/com/string.h>
+#include <VBox/com/ptr.h>
+
+
+#ifdef RT_OS_OS2
+# include <sys/socket.h>
+typedef int socklen_t;
+#endif
+
+#include <stdio.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+
+#include <iprt/assert.h>
+#include <iprt/errcore.h>
+#include <iprt/file.h>
+#include <iprt/critsect.h>
+
+#include <VBox/log.h>
+
+#include <iprt/sanitized/string>
+
+#include "HostDnsService.h"
+#include "../../Devices/Network/slirp/resolv_conf_parser.h"
+
+
+struct HostDnsServiceResolvConf::Data
+{
+    Data(const char *fileName)
+        : resolvConfFilename(fileName)
+    {
+    };
+
+    std::string resolvConfFilename;
+};
+
+HostDnsServiceResolvConf::~HostDnsServiceResolvConf()
+{
+    if (m)
+    {
+        delete m;
+        m = NULL;
+    }
+}
+
+HRESULT HostDnsServiceResolvConf::init(HostDnsMonitorProxy *pProxy, const char *aResolvConfFileName)
+{
+    HRESULT hr = HostDnsServiceBase::init(pProxy);
+    AssertComRCReturn(hr, hr);
+
+    m = new Data(aResolvConfFileName);
+    AssertPtrReturn(m, E_OUTOFMEMORY);
+
+    return readResolvConf();
+}
+
+void HostDnsServiceResolvConf::uninit(void)
+{
+    if (m)
+    {
+        delete m;
+        m = NULL;
+    }
+
+    HostDnsServiceBase::uninit();
+}
+
+const std::string& HostDnsServiceResolvConf::getResolvConf(void) const
+{
+    return m->resolvConfFilename;
+}
+
+HRESULT HostDnsServiceResolvConf::readResolvConf(void)
+{
+    struct rcp_state st;
+
+    st.rcps_flags = RCPSF_NO_STR2IPCONV;
+    int rc = rcp_parse(&st, m->resolvConfFilename.c_str());
+    if (rc == -1)
+        return S_OK;
+
+    HostDnsInformation info;
+    for (unsigned i = 0; i != st.rcps_num_nameserver; ++i)
+    {
+        AssertBreak(st.rcps_str_nameserver[i]);
+        info.servers.push_back(st.rcps_str_nameserver[i]);
+    }
+
+    if (st.rcps_domain)
+        info.domain = st.rcps_domain;
+
+    for (unsigned i = 0; i != st.rcps_num_searchlist; ++i)
+    {
+        AssertBreak(st.rcps_searchlist[i]);
+        info.searchList.push_back(st.rcps_searchlist[i]);
+    }
+    setInfo(info);
+
+    return S_OK;
+}
+