BSD 4_1c_2 release

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

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

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

#include "h00vars.h"

char
READC(curfile)

       register struct iorec   *curfile;
{
       char                    data;

       if (curfile->funit & FWRITE) {
               ERROR("%s: Attempt to read, but open for writing\n",
                       curfile->pfname);
               return;
       }
       IOSYNC(curfile);
       if (curfile->funit & EOFF) {
               ERROR("%s: Tried to read past end of file\n", curfile->pfname);
               return;
       }
       curfile->funit |= SYNC;
       return *curfile->fileptr;
}