From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon,  9 Oct 1995 19:21:54 -0400
From: beto@plan9.cs.su.oz.au beto@plan9.cs.su.oz.au
Subject: reading selected text in acme
Topicbox-Message-UUID: 2c771486-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19951009232154.fu3q-0kfISN8r2VpBHu94O9kTcTt7h_3UoL8A_Wx230@z>

In <95Oct9.021146edt.78511@colossus.cse.psu.edu>
	rob@plan9.att.com wrote:

> #include <u.h>
> #include <libc.h>
> 
> /* assumes chars==characters.  fixing this is an exercise for the reader */
> 
> void
> main(void)
> {
> 	int c, a, d, x1, x2;
> 	char buf[256];
> 
> 	c = open("/mnt/acme/1/ctl", ORDWR);
> 	a = open("/mnt/acme/1/addr", OREAD);
> 	d = open("/mnt/acme/1/data", OREAD);
> 	write(c, "addr=dot", 8);
> 	read(a, buf, sizeof buf);
> 	x1 = atoi(buf);
> 	x2 = atoi(buf+12);
> 	seek(d, x1, 0);
> 	read(d, buf, x2-x1);
> 	write(1, buf, x2-x1);
> 	exits(0);
> }
> 
> 
> 
Thanks