1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef NET_DNS_DNS_CONFIG_SERVICE_POSIX_H_ 6 #define NET_DNS_DNS_CONFIG_SERVICE_POSIX_H_ 7 8 #include <sys/types.h> 9 #include <netinet/in.h> 10 #include <resolv.h> 11 12 #include "base/compiler_specific.h" 13 #include "net/base/net_export.h" 14 #include "net/dns/dns_config_service.h" 15 16 namespace net { 17 18 // Use DnsConfigService::CreateSystemService to use it outside of tests. 19 namespace internal { 20 21 class NET_EXPORT_PRIVATE DnsConfigServicePosix : public DnsConfigService { 22 public: 23 DnsConfigServicePosix(); 24 virtual ~DnsConfigServicePosix(); 25 26 protected: 27 // DnsConfigService: 28 virtual void ReadNow() OVERRIDE; 29 virtual bool StartWatching() OVERRIDE; 30 31 private: 32 class Watcher; 33 class ConfigReader; 34 class HostsReader; 35 36 void OnConfigChanged(bool succeeded); 37 void OnHostsChanged(bool succeeded); 38 39 scoped_ptr<Watcher> watcher_; 40 scoped_refptr<ConfigReader> config_reader_; 41 scoped_refptr<HostsReader> hosts_reader_; 42 43 DISALLOW_COPY_AND_ASSIGN(DnsConfigServicePosix); 44 }; 45 46 enum ConfigParsePosixResult { 47 CONFIG_PARSE_POSIX_OK = 0, 48 CONFIG_PARSE_POSIX_RES_INIT_FAILED, 49 CONFIG_PARSE_POSIX_RES_INIT_UNSET, 50 CONFIG_PARSE_POSIX_BAD_ADDRESS, 51 CONFIG_PARSE_POSIX_BAD_EXT_STRUCT, 52 CONFIG_PARSE_POSIX_NULL_ADDRESS, 53 CONFIG_PARSE_POSIX_NO_NAMESERVERS, 54 CONFIG_PARSE_POSIX_MISSING_OPTIONS, 55 CONFIG_PARSE_POSIX_UNHANDLED_OPTIONS, 56 CONFIG_PARSE_POSIX_MAX // Bounding values for enumeration. 57 }; 58 59 // Fills in |dns_config| from |res|. 60 ConfigParsePosixResult NET_EXPORT_PRIVATE ConvertResStateToDnsConfig( 61 const struct __res_state& res, DnsConfig* dns_config); 62 63 } // namespace internal 64 65 } // namespace net 66 67 #endif // NET_DNS_DNS_CONFIG_SERVICE_POSIX_H_ 68
