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From: Paul Ruizendaal <pnr@planet.nl>
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Subject: Re: [TUHS] 2.9bsd with networking on 18-bit possible?
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> The journey is documented here:
> http://1587660.websites.xs4all.nl/cgi-bin/9995/timeline
>=20
> The network code is in a different tree, I'll move it over to the =
above tree over the weekend.

Posted the network bit in the online repo; it's in the v6net directory.

Also fixed the instability - it is quite satisfying to login to v6 from =
a 'nc' client on modern hardware.

However, I also found that the BBN code from November 1981 is what is =
says on the can: beta.
I'll move to the October 1982 code when I find some time.

Paul

PS, this is the 'server' that nc connects to:

#define unchar unsigned char
#define netaddr unsigned long

#include "con.h"
#include <stdio.h>
#include <string.h>

unsigned long
ipaddr(w,x,y,z)
	int w,x,y,z;
{
	unsigned long ip;
	ip =3D w;
	ip =3D (ip<<8)|x;
	ip =3D (ip<<8)|y;
	ip =3D (ip<<8)|z;
	return ip;
}

struct con con;

void
child(fd)
	int fd;
{
        close(0);
        dup(fd);
        close(1);
        dup(fd);
        close(2);
        dup(fd);
        close(fd);
        execl("/bin/sh", "[net-sh]", 0);
}

main()
{
	int i, n, sd;
       =20
 	con.c_mode   =3D CONTCP;
        con.c_fcon   =3D ipaddr(192,168,1,114);
        con.c_lcon   =3D ipaddr(172,16,0,2);
        con.c_fport  =3D 0;
        con.c_lport  =3D 4000;

	sd =3D open("/net", &con);

	printf("Connected\n", sd);
	child(sd);

	close(sd);
}