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From: jon@msunix.UUCP
Newsgroups: net.sources.bugs
Subject: Re: revised network blackjack game
Message-ID: <245@msunix.UUCP>
Date: Fri, 1-Aug-86 02:33:23 EDT
Article-I.D.: msunix.245
Posted: Fri Aug  1 02:33:23 1986
Date-Received: Sat, 2-Aug-86 10:54:09 EDT
References: <241@msunix.UUCP>
Organization: Via Visuals Inc.
Lines: 39
Keywords: blackjack game sockets network multiuser
Summary: I screwed up.  Here's the fix...


Dammit.  I didn't bother to make sure it ran on the VAX, and sure
enough, I've received a number of coomplaints that it doesn't run
on a VAX.  I tried to remove byte order problems so it could work
between a Sun and a VAX, but instead introduced more problems.
Not only did I use the wrong conversions for the wrong size arguments,
but the logic was wrong also.  Here is the sockio.c which works on the
Sun and VAX.


#include <stdio.h>
/*
 * Routines to send and receive on sockets.  Four bytes of length are
 * sent, followed by the null terminated string.
 *
 */
void sockread(s, buf)
int s;				/* socket to talk on */
char *buf;			/* string to send */
{
	int nbytes;

	(void) read(s, (char *) &nbytes, sizeof(int));
	nbytes = ntohl(nbytes);
	(void) read(s, buf, nbytes);
}


void sockwrite(s, buf)
int s;				/* socket to talk on */
char *buf;			/* string to read on */
{
	int nbytes, netnbytes;

	nbytes = strlen(buf) + 1;
	netnbytes = htonl(nbytes);
	(void) write(s, (char *) &netnbytes, sizeof(int));
	(void) write(s, buf, nbytes);
}