BSD 4 release

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

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

static char sccsid[] = "@(#)READC.c 1.1 10/29/80";

#include "h00vars.h"
#include "h01errs.h"

char
READC(curfile)

       register struct iorec   *curfile;
{
       char                    data;

       if (curfile->funit & FWRITE) {
               ERROR(EREADIT, curfile->pfname);
               return;
       }
       IOSYNC(curfile);
       if (curfile->funit & EOFF) {
               ERROR(EPASTEOF, curfile->pfname);
               return;
       }
       curfile->funit |= SYNC;
       return *curfile->fileptr;
}