RE: compiling winsock apps

RE: compiling winsock apps

[Colin Peters]

Ben Miller[SMTP:bgmiller@dccinc.com] wrote:
>try renaming the file to winsock.cpp and then compiling it.  It will generate these errors.  Is there something I am missing in order to be able to compile in c++ mode rather that c mode?

The C++ parser has some problems with parting function prototypes with
__attributes__ separated from the function names. I think that you will
need to go through the entries in Sockets.h that cause the errors and
change them to put the PASCAL word at the end of the line (I think this
works). E.g.

char PASCAL *inet_ntoa (struct in_addr in);

becomes

char *inet_ntoa (struct in_addr in) PASCAL;

It doesn't look nice, but it seems to work (won't work with non GNU
compilers though, but neither will a lot of other stuff in those
headers).

Good luck,
Colin.

-- Colin Peters - Saga Univ. Dept. of Information Science
-- colin@bird.fu.is.saga-u.ac.jp - finger for PGP public key
-- http://www.fu.is.saga-u.ac.jp/~colin/index.html
-- http://www.geocities.com/Tokyo/Towers/6162/

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Re: compiling winsock apps

[Ben Miller]

I have tried the lines you have indicated below but I get a bunch of errors like
the one below:

C:\\gnuwin32\\b18\\H-i386-cygwin32\\lib\\gcc-lib\\i386-cygwin32\\cygnus-2.7.2-970404\\../../../../i386-cygwin32/include/Windows32/Sockets.h:824: syntax error before `__attribute__'

----------------------------------------
Benjamin G. Miller
Consultant
Data Communications Consulting inc.
----------------------------------------
This message transmited on 100% recycled electrons.


>>> Tim Newsham <newsham@aloha.net> 10/28 3:42 PM >>>
> I have read the archives, the faq's, the docs (that I could find) and I still can't find how to compile a winsock application.  I can't even get all the headers to compile properly.  Can anyone out there offer some help or simple samples on how to get a standard winsock cpp application to compile and run properly.

^^ you should hit the enter key once every 70 characters.

You need to do:

    #define Win32_Winsock
    #include <windows.h>

to pull in the winsock defines rather than the cygwin (bsd style)
socket defines.

> Benjamin G. Miller

                                      Tim N.

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Re: compiling winsock apps

[Ben Miller]

try renaming the file to winsock.cpp and then compiling it.  It will generate these errors.  Is there something I am missing in order to be able to compile in c++ mode rather that c mode?

----------------------------------------
Benjamin G. Miller
Consultant
Data Communications Consulting inc.
----------------------------------------
This message transmited on 100% recycled electrons.


>>> Tim Newsham <newsham@aloha.net> 10/28 4:22 PM >>>
> I have tried the lines you have indicated below but I get a bunch of =
> errors like
> the one below:
> 
> C:=5C=5Cgnuwin32=5C=5Cb18=5C=5CH-i386-cygwin32=5C=5Clib=5C=5Cgcc-lib=5C=5Ci=
> 386-cygwin32=5C=5Ccygnus-2.7.2-970404=5C=5C../../../../i386-cygwin32/includ=
> e/Windows32/Sockets.h:824: syntax error before `__attribute__=27

I don't get any errors like that.  Here is an example program that
compiles and runs for me:


/*
 * winsock.c
 * 	example of using winsock calls with cygwin
 *
 * to build: gcc winsock.c -lwsock32
 */

#define Win32_Winsock
#include <windows.h>

void
xperror(int bool, char *mesg)
{
    if(bool) {
        printf("%s: error %d\n", mesg, GetLastError());
        exit(1);
    }
}

void
init()
{
    static int initdone = 0; 
    static WSADATA data;

    if(initdone == 0) {
        WSAStartup(MAKEWORD(1, 1), &data);   
        initdone = 1;
    }
}

int
main(int argc, char **argv)
{
    SOCKADDR_IN ad;
    SOCKET s;
    int addr, res;

    init();
    if(argc != 2) {
        printf("usage: %s hostIP\n", argv[0]);
        exit(1);
    }
    addr = inet_addr(argv[1]);

    s = socket(AF_INET, SOCK_STREAM, 0);
    xperror(s == INVALID_SOCKET, "socket");

    memset(&ad, 0, sizeof(ad));
    ad.sin_family = AF_INET;
    ad.sin_port = htons(23);
    ad.sin_addr.s_addr = addr;

    res = connect(s, (LPSOCKADDR)&ad, sizeof(ad));
    xperror(res == SOCKET_ERROR, "connect");

    printf("connected\n");
    closesocket(s);
    return 0;
}


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Re: compiling winsock apps

[Tim Newsham]

> I have read the archives, the faq's, the docs (that I could find) and I still can't find how to compile a winsock application.  I can't even get all the headers to compile properly.  Can anyone out there offer some help or simple samples on how to get a standard winsock cpp application to compile and run properly.

^^ you should hit the enter key once every 70 characters.

You need to do:

    #define Win32_Winsock
    #include <windows.h>

to pull in the winsock defines rather than the cygwin (bsd style)
socket defines.

> Benjamin G. Miller

                                      Tim N.
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Re: compiling winsock apps

[Tim Newsham]

> I have tried the lines you have indicated below but I get a bunch of =
> errors like
> the one below:
> 
> C:=5C=5Cgnuwin32=5C=5Cb18=5C=5CH-i386-cygwin32=5C=5Clib=5C=5Cgcc-lib=5C=5Ci=
> 386-cygwin32=5C=5Ccygnus-2.7.2-970404=5C=5C../../../../i386-cygwin32/includ=
> e/Windows32/Sockets.h:824: syntax error before `__attribute__=27

I don't get any errors like that.  Here is an example program that
compiles and runs for me:


/*
 * winsock.c
 * 	example of using winsock calls with cygwin
 *
 * to build: gcc winsock.c -lwsock32
 */

#define Win32_Winsock
#include <windows.h>

void
xperror(int bool, char *mesg)
{
    if(bool) {
        printf("%s: error %d\n", mesg, GetLastError());
        exit(1);
    }
}

void
init()
{
    static int initdone = 0; 
    static WSADATA data;

    if(initdone == 0) {
        WSAStartup(MAKEWORD(1, 1), &data);   
        initdone = 1;
    }
}

int
main(int argc, char **argv)
{
    SOCKADDR_IN ad;
    SOCKET s;
    int addr, res;

    init();
    if(argc != 2) {
        printf("usage: %s hostIP\n", argv[0]);
        exit(1);
    }
    addr = inet_addr(argv[1]);

    s = socket(AF_INET, SOCK_STREAM, 0);
    xperror(s == INVALID_SOCKET, "socket");

    memset(&ad, 0, sizeof(ad));
    ad.sin_family = AF_INET;
    ad.sin_port = htons(23);
    ad.sin_addr.s_addr = addr;

    res = connect(s, (LPSOCKADDR)&ad, sizeof(ad));
    xperror(res == SOCKET_ERROR, "connect");

    printf("connected\n");
    closesocket(s);
    return 0;
}

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RE: compiling winsock apps

[Sergey Okhapkin]

Ben Miller wrote:
> I have read the archives, the faq's, the docs (that I could find) and I 
still can't find how to compile a winsock application.  I can't even get 
all the headers to compile properly.  Can anyone out there offer some help 
or simple samples on how to get a standard winsock cpp application to 
compile and run properly.

If you want to use the standard berkeley socket functions, but not winsock 
extensions, just include <sys/socket.h>.

--
Sergey Okhapkin, http://www.lexa.ru/sos
Moscow, Russia
Looking for a job.


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compiling winsock apps

[Ben Miller]

Greetings,

I have read the archives, the faq's, the docs (that I could find) and I still can't find how to compile a winsock application.  I can't even get all the headers to compile properly.  Can anyone out there offer some help or simple samples on how to get a standard winsock cpp application to compile and run properly.

Thanks in advance,
  Ben

----------------------------------------
Benjamin G. Miller
Consultant
Data Communications Consulting inc.
----------------------------------------
This message transmited on 100% recycled electrons.


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