rfgetc.c,v

来自「TCP-IP红宝书源代码」· C,V 代码 · 共 47 行

head	1.1;
access;
symbols;
locks
	dls:1.1; strict;
comment	@ * @;


1.1
date	97.09.21.19.28.54;	author dls;	state Dist;
branches;
next	;


desc
@@


1.1
log
@pre-3e code
@
text
@/* rfgetc.c - rfgetc */

#include <conf.h>
#include <kernel.h>
#include <network.h>

/*------------------------------------------------------------------------
 *  rfgetc  --  get a character from a remote file
 *------------------------------------------------------------------------
 */
rfgetc(devptr)
struct	devsw	*devptr;
{
	char	ch;
	int	retcode;

	if ( (retcode=read(devptr->dvnum, &ch, 1)) == 1)
		return(ch);
	else if (retcode != EOF)
		retcode = SYSERR;
	return(retcode);
}
@