Help- basic WinSock application

This is a discussion on Help- basic WinSock application within the Networking/Device Communication forums, part of the General Programming Boards category; Hi I want to write a basic server in C. I compiled this code- http://msdn.microsoft.com/en-us/libr...93(VS.85).aspx and i got these problems: ...

  1. #1
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    Wink Help- basic WinSock application

    Hi
    I want to write a basic server in C.

    I compiled this code-
    http://msdn.microsoft.com/en-us/libr...93(VS.85).aspx
    and i got these problems:

    Code:
    d:\program files\microsoft visual studio\myprojects\server\server.c(18) : error C2079: 'hints' uses undefined struct 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(33) : error C2224: left of '.ai_family' must have struct/union type
    d:\program files\microsoft visual studio\myprojects\server\server.c(34) : error C2224: left of '.ai_socktype' must have struct/union type
    d:\program files\microsoft visual studio\myprojects\server\server.c(35) : error C2224: left of '.ai_protocol' must have struct/union type
    d:\program files\microsoft visual studio\myprojects\server\server.c(36) : error C2224: left of '.ai_flags' must have struct/union type
    d:\program files\microsoft visual studio\myprojects\server\server.c(36) : error C2065: 'AI_PASSIVE' : undeclared identifier
    d:\program files\microsoft visual studio\myprojects\server\server.c(39) : warning C4013: 'getaddrinfo' undefined; assuming extern returning int
    d:\program files\microsoft visual studio\myprojects\server\server.c(47) : error C2037: left of 'ai_family' specifies undefined struct/union 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(47) : error C2037: left of 'ai_socktype' specifies undefined struct/union 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(47) : error C2037: left of 'ai_protocol' specifies undefined struct/union 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(47) : error C2198: 'socket' : too few actual parameters
    d:\program files\microsoft visual studio\myprojects\server\server.c(50) : warning C4013: 'freeaddrinfo' undefined; assuming extern returning int
    d:\program files\microsoft visual studio\myprojects\server\server.c(56) : error C2037: left of 'ai_addr' specifies undefined struct/union 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(56) : error C2037: left of 'ai_addrlen' specifies undefined struct/union 'addrinfo'
    d:\program files\microsoft visual studio\myprojects\server\server.c(56) : error C2198: 'bind' : too few actual parameters
    Error executing cl.exe.
    in summary, the struct "addrinfo" is undefined.

    I included :
    Code:
    #include <stdio.h>
    #include <winsock2.h>
    #include <ws2tcpip.h>
    #include <stdlib.h
    I'm doing link to Ws2_32.lib(by writing it in project-settings-libar)

    I'm working in Visual Studio 6.

    Please help me

    Thanks and sorry about my english
    Tom.

  2. #2
    C++ Witch laserlight's Avatar
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    Moved to Networking/Device Communication.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

  3. #3
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    try including ws2_32.lib

  4. #4
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    #pragma comment(lib,"ws2_32.lib") i think should work then

  5. #5
    "I Win!" by U. Lose vart's Avatar
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    Quote Originally Posted by baccardi View Post
    try including ws2_32.lib
    this is not a linker problem - it is compiler problem

    I would try to move winsock2 include to be the first one in the list
    To be or not to be == true

  6. #6
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    i tried your 2 solutions, but it doesnt work ..


  7. #7
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    Have you at all modified the code, compared to the web-site?

    What version of Visual Studio are you using?

    I just copied and pasted it into a new, empty projects in VS C++ 2008 Express Ed., and it compiled, linked and ran without problems. I don't have any client to talk to it, so I don't know what it actually does.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  8. #8
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    msv6 got problems with it i tried it didnt compile with msv6 but it did with msv8

  9. #9
    Malum in se abachler's Avatar
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    Code:
    #include <winsock.h>
    not winsock2.h
    Until you can build a working general purpose reprogrammable computer out of basic components from radio shack, you are not fit to call yourself a programmer in my presence. This is cwhizard, signing off.

  10. #10
    In my head happyclown's Avatar
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    I noticed the program has
    Code:
    int __cdecl main(void)
    Never seen anything like that before.

    I thought the syntax was
    Code:
    int main(void)
    OS: Linux Mint 13(Maya) LTS 64 bit.

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