4.3BSD - /usr/src/usr.lib/libpc/FNIL.c

   1: /* Copyright (c) 1979 Regents of the University of California */
   2: 
   3: static char sccsid[] = "@(#)FNIL.c 1.3 6/10/81";
   4: 
   5: #include "h00vars.h"
   6: 
   7: char *
   8: FNIL(curfile)
   9: 
  10:     register struct iorec   *curfile;
  11: {
  12:     if (curfile->fblk >= MAXFILES || _actfile[curfile->fblk] != curfile) {
  13:         ERROR("Reference to an inactive file\n", 0);
  14:         return;
  15:     }
  16:     if (curfile->funit & FDEF) {
  17:         ERROR("%s: Reference to an inactive file\n", curfile->pfname);
  18:         return;
  19:     }
  20:     if (curfile->funit & FREAD) {
  21:         IOSYNC(curfile);
  22:     }
  23:     return curfile->fileptr;
  24: }

Defined functions

Defined variables