linking errors while compiling c++ console application

I am getting following linking errors while compiling console application ...any ideas ?

msvcprtd.lib(MSVCP60D.dll) : error LNK2005: "public: class std::basic_ostream<char,struct std::char_traits<char> > & __thiscall std::basic_ostream<char,struct std::char_traits<char> >::operator<<(unsigned long)" (??6?$basic_ostream@DU?$char_traits@D
@std@@@std@@QAEAAV01@K@Z) already defined in protocol.obj

msvcprtd.lib(MSVCP60D.dll) : error LNK2005: "class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl std::operator<<(class std::basic_ostream<char,struct std::char_traits<char> > &,char const *)" (??6std@@YAAAV?$basic_ostream@DU?$cha
r_traits@D@std@@@0@AAV10@PBD@Z) already defined in network.obj

network.obj : error LNK2001: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> >  std::cerr" (?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A)

protocol.obj : error LNK2001: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> >  std::cerr" (?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A)

revnetwork.obj : error LNK2001: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> >  std::cerr" (?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A)

protocol.obj : error LNK2001: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> >  std::cout" (?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A)

protocol.obj : error LNK2001: unresolved external symbol "private: static int  std::locale::id::_Id_cnt" (?_Id_cnt@id@locale@std@@0HA)

rawpacket.obj : error LNK2001: unresolved external symbol "private: static int  std::locale::id::_Id_cnt" (?_Id_cnt@id@locale@std@@0HA)

revnetwork.obj : error LNK2001: unresolved external symbol "private: static int  std::locale::id::_Id_cnt" (?_Id_cnt@id@locale@std@@0HA)

sock.obj : error LNK2001: unresolved external symbol _errno
nrusinhAsked:
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tinchosCommented:
The error LNK 2001 is either because you're missing the implementation of those functions or the definition of those variables.
To solve this, check that you have implemented those functions and defined those variables.

The error LNK 2005 is because the linker is findind 2 implementations for the same function and can't decide which one is the one that should be using. To solve this check that you have only one implementation for each function.

Hope this helps

Tincho

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tinchosCommented:
No comment has been added lately, so it's time to clean up this TA.
I will leave the following recommendation for this question in the Cleanup topic area:

Accept: tinchos {http:#9693904}

Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

Tinchos
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