BSD 4_1_snap release

[unix-history] / usr / src / lib / libpc / UNIT.c

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)UNIT.c 1.2 6/10/81";

#include "h00vars.h"

struct iorec *
UNIT(curfile)

       register struct iorec   *curfile;
{
       if (curfile->fblk >= MAXFILES || _actfile[curfile->fblk] != curfile) {
               ERROR("Reference to an inactive file\n", 0);
               return;
       }
       if (curfile->funit & FDEF) {
               ERROR("%s: Reference to an inactive file\n", curfile->pfname);
               return;
       }
       return curfile;
}