InfoMagic Internet Tools 1995 April/Internet Tools.iso/dos_win/winsock/maillist/94-03.Z/94-03/text0220.txt

Text File | 1994-03-30 | 6.6 KB | 156 lines

I'm running trumpet winsock with serweb3 and mosaic has a problem grabbing
files via http:\\ from the machine its running on. The data transfer is
extremely slow. I've tried this using Cello with no problems. Any ideas?


thanks,
scott
From [e-mail] Thu Mar 17 13:50:19 1994
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From: [e-mail] (Donald Munro)
Message-Id: <[e-mail]>
Organization: University of Port Elizabeth Computing Centre
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Subject: Winsock Chess Beta Release

I have uploaded a beta release of my Winsock Chess program to WUARCHIVE (CICA
don't seem to be accepting uploads at the moment).  It allows two players to
play chess against each over over a Winsock supporting network.  It it
freeware and comes with the source which based on the GNU Chess for Windows
source for checking validity of moves etc.

Any bug reports and/or suggestions are welcome.

Donald Munro ([e-mail])
Computing Centre, University of Port Elizabeth
From [e-mail] Thu Mar 17 14:09:03 1994
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Date: Thu, 17 Mar 1994 19:09:03 EST
From: [e-mail] (Jose M. daLuz)
Message-Id: <[e-mail]>
Organization: KnowledgeQuest Online Research
Sender: ses
Subject: Internet Tour Guide's Chameleon:Compressed SLIP?

I noticed that there's a new "Internet Tour Guide for Windows" which contains
a limited version of Netmanage Chameleon.  Does anyone know if the SLIP
support in this package includes header compression?

Thanks in advance.



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From [e-mail] Thu Mar 17 13:40:19 1994
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From: [e-mail] (Donald Munro)
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References: <[e-mail]>
Subject: Re: WINSOCK.DLL - Determining IP address

In article <[e-mail]> [e-mail] (Steven M. Ziuchkovski) writes:
>From: [e-mail] (Steven M. Ziuchkovski)
>Subject: WINSOCK.DLL - Determining IP address
>Date: Wed, 16 Mar 1994 01:04:49

>I'm just starting out programming with the WINSOCK.DLL. I've got a few files
>from rhino.microsoft.com, and did a LOT of reading, but the documentation does
>not seem to be that good (well, to me).

>Anyway, I'm trying to take a string (such as 'oak.oakland.edu') and determine
>it's numeric IP address (141.210.10.117) as a small excersize for myself to
>get started. I've gotten a small program that uses WSAStartup to determine the
>number of sockets available (szMaxSockets), etc. Then, I use GetHostByName to
>fill out a HostEnt record.

The hostent structure hostent->h_addr which is actually a macro for the first
entry in an array of host addresses is not very well documented.  The
definition says, if I recall correctly, that it is a char FAR ** whereas in
actual fact its a pointer to an unsigned long containing the internal
representation of the IP address.
IThe following code should do the trick (this is blocking code - it is
slightly more complex to use the WSAgethost.. calls) :

unsigned long ulIpAddr;
unsigned long FAR *lpulIpAddr;
..
..
if ( (lphostent = gethostbyname(lpszServerIPAddr)) == (LPHOSTENT)0L)
    { ulIpAddr = inet_addr(lpszServerIPAddr);
      if ( (lphostent = gethostbyaddr(&ulIpAddr,4,PF_INET)) == (LPHOSTENT)0L)
       { MsgBox( NULL,
              MB_ICONSTOP | MB_OK,
              "Winsock Error %s : Invalid IP Address",
              SocketErrorMsg(WSAGetLastError()));
         WSACleanup();
         return FALSE;
       }
    }
  else // valid host name
    { lpulIpAddr = (unsigned long FAR *) lphostent->h_addr;
      ulIpAddr = *lpulIpAddr;
    }

Note that using unsigned long as above is non-portable to Win32; in Unix and I
assume Win32 the unsigned longs are replaced by ints.

Donald Munro ([e-mail])
Computing Centre, University of Port Elizabeth
From [e-mail] Fri Mar 18 00:30:58 1994
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Date: Thu, 17 Mar 1994 16:08:10
From: [e-mail] (Steven M. Ziuchkovski)
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Organization: The Falcon's Nest
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Subject: Error code 10035 from GetHostByName()

I wrote a simple program to accept input from the user in the form of
"oak.oakland.edu" (an IP address in text form), and figure out what the
numerical address is (in this case, 141.210.10.117).

At one time, the program worked well, but now GetHostByName() is returning an
error code of 10035. What error is that? In the documentation I have, it says
that it's the same as in BSD. Well, sorry to say, I do not have the
documentation on BSD. So could someone elaborate?

Steve

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Steven Ziuchkovski               (0 0)            [e-mail]
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