1 | /* $Id: HostDnsServiceResolvConf.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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2 | /** @file
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3 | * Base class for Host DNS & Co services.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2014-2022 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 | /* -*- indent-tabs-mode: nil; -*- */
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19 | #include <VBox/com/string.h>
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20 | #include <VBox/com/ptr.h>
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21 |
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22 |
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23 | #ifdef RT_OS_OS2
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24 | # include <sys/socket.h>
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25 | typedef int socklen_t;
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26 | #endif
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27 |
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28 | #include <stdio.h>
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29 | #include <sys/socket.h>
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30 | #include <netinet/in.h>
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31 | #include <arpa/inet.h>
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32 |
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33 |
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34 | #include <iprt/assert.h>
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35 | #include <iprt/errcore.h>
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36 | #include <iprt/file.h>
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37 | #include <iprt/critsect.h>
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38 |
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39 | #include <VBox/log.h>
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40 |
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41 | #include <iprt/sanitized/string>
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42 |
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43 | #include "HostDnsService.h"
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44 | #include "../../Devices/Network/slirp/resolv_conf_parser.h"
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45 |
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46 |
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47 | struct HostDnsServiceResolvConf::Data
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48 | {
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49 | Data(const char *fileName)
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50 | : resolvConfFilename(fileName)
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51 | {
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52 | };
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53 |
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54 | std::string resolvConfFilename;
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55 | };
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56 |
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57 | HostDnsServiceResolvConf::~HostDnsServiceResolvConf()
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58 | {
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59 | if (m)
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60 | {
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61 | delete m;
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62 | m = NULL;
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63 | }
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64 | }
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65 |
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66 | HRESULT HostDnsServiceResolvConf::init(HostDnsMonitorProxy *pProxy, const char *aResolvConfFileName)
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67 | {
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68 | HRESULT hr = HostDnsServiceBase::init(pProxy);
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69 | AssertComRCReturn(hr, hr);
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70 |
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71 | m = new Data(aResolvConfFileName);
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72 | AssertPtrReturn(m, E_OUTOFMEMORY);
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73 |
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74 | return readResolvConf();
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75 | }
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76 |
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77 | void HostDnsServiceResolvConf::uninit(void)
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78 | {
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79 | if (m)
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80 | {
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81 | delete m;
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82 | m = NULL;
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83 | }
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84 |
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85 | HostDnsServiceBase::uninit();
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86 | }
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87 |
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88 | const std::string& HostDnsServiceResolvConf::getResolvConf(void) const
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89 | {
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90 | return m->resolvConfFilename;
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91 | }
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92 |
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93 | HRESULT HostDnsServiceResolvConf::readResolvConf(void)
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94 | {
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95 | struct rcp_state st;
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96 |
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97 | st.rcps_flags = RCPSF_NO_STR2IPCONV;
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98 | int rc = rcp_parse(&st, m->resolvConfFilename.c_str());
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99 | if (rc == -1)
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100 | return S_OK;
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101 |
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102 | HostDnsInformation info;
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103 | for (unsigned i = 0; i != st.rcps_num_nameserver; ++i)
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104 | {
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105 | AssertBreak(st.rcps_str_nameserver[i]);
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106 | info.servers.push_back(st.rcps_str_nameserver[i]);
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107 | }
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108 |
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109 | if (st.rcps_domain)
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110 | info.domain = st.rcps_domain;
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111 |
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112 | for (unsigned i = 0; i != st.rcps_num_searchlist; ++i)
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113 | {
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114 | AssertBreak(st.rcps_searchlist[i]);
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115 | info.searchList.push_back(st.rcps_searchlist[i]);
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116 | }
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117 | setInfo(info);
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118 |
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119 | return S_OK;
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120 | }
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121 |
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