122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
/*
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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*/
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/*
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File: SocketUtils.h
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Contains: Some static routines for dealing with networking
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*/
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#ifndef __SOCKETUTILS_H__
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#define __SOCKETUTILS_H__
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#ifndef __Win32__
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <net/if.h>
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#endif
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#include "ev.h"
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#include "OSHeaders.h"
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#include "MyAssert.h"
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#include "StrPtrLen.h"
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#include "OSMutex.h"
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#ifdef __solaris__
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#ifndef INADDR_NONE
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#define INADDR_NONE 0xffffffff /* -1 return from inet_addr */
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#endif
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#endif
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class SocketUtils
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{
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public:
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// Call initialize before using any socket functions.
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// (pass true for lookupDNSName if you want the hostname
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// looked up via DNS during initialization -- %%sfu)
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static void Initialize(Bool16 lookupDNSName = true);
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//static utility routines
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static Bool16 IsMulticastIPAddr(UInt32 inAddress);
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static Bool16 IsLocalIPAddr(UInt32 inAddress);
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//This function converts an integer IP address to a dotted-decimal string.
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//This function is NOT THREAD SAFE!!!
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static void ConvertAddrToString(const struct in_addr& theAddr, StrPtrLen* outAddr);
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// This function converts a dotted-decimal string IP address to a UInt32
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static UInt32 ConvertStringToAddr(const char* inAddr);
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//You can get at all the IP addrs and DNS names on this machine this way
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static UInt32 GetNumIPAddrs() { return sNumIPAddrs; }
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static inline UInt32 GetIPAddr(UInt32 inAddrIndex);
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static inline StrPtrLen* GetIPAddrStr(UInt32 inAddrIndex);
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static inline StrPtrLen* GetDNSNameStr(UInt32 inDNSIndex);
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private:
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//Utility function used by Initialize
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#ifndef __Win32__
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static Bool16 IncrementIfReqIter(char** inIfReqIter, ifreq* ifr);
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#endif
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//For storing relevent information about each IP interface
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struct IPAddrInfo
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{
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UInt32 fIPAddr;
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StrPtrLen fIPAddrStr;
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StrPtrLen fDNSNameStr;
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};
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static IPAddrInfo* sIPAddrInfoArray;
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static UInt32 sNumIPAddrs;
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static OSMutex sMutex;
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};
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inline UInt32 SocketUtils::GetIPAddr(UInt32 inAddrIndex)
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{
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Assert(sIPAddrInfoArray != NULL);
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Assert(inAddrIndex < sNumIPAddrs);
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return sIPAddrInfoArray[inAddrIndex].fIPAddr;
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}
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inline StrPtrLen* SocketUtils::GetIPAddrStr(UInt32 inAddrIndex)
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{
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Assert(sIPAddrInfoArray != NULL);
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Assert(inAddrIndex < sNumIPAddrs);
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return &sIPAddrInfoArray[inAddrIndex].fIPAddrStr;
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}
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inline StrPtrLen* SocketUtils::GetDNSNameStr(UInt32 inDNSIndex)
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{
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Assert(sIPAddrInfoArray != NULL);
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Assert(inDNSIndex < sNumIPAddrs);
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return &sIPAddrInfoArray[inDNSIndex].fDNSNameStr;
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}
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#endif // __SOCKETUTILS_H__
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