usr/src/cmd/lp/lib/access/files.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30
  31 #pragma ident   "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.10  */
  32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
  33
  34 #include "errno.h"
  35 #include "stdio.h"
  36 #include "string.h"
  37 #include "unistd.h"
  38 #include "stdlib.h"
  39
  40 #include "lp.h"
  41
  42 /**
  43  ** getaccessfile() - BUILD NAME OF ALLOW OR DENY FILE
  44  **/
  45
  46 char *
  47 #if     defined(__STDC__)
  48 getaccessfile (
  49         char *                  dir,
  50         char *                  name,
  51         char *                  prefix,
  52         char *                  base
  53 )
  54 #else
  55 getaccessfile (dir, name, prefix, base)
  56         char                    *dir,
  57                                 *name,
  58                                 *prefix,
  59                                 *base;
  60 #endif
  61 {
  62         register char           *parent,
  63                                 *file,
  64                                 *f;
  65
  66         /*
  67          * It makes no sense talking about the access files if
  68          * the directory for the form or printer doesn't exist.
  69          */
  70         parent = makepath(dir, name, (char *)0);
  71         if (!parent)
  72                 return (0);
  73         if (Access(parent, F_OK) == -1) {
  74                 Free(parent);
  75                 return (0);
  76         }
  77
  78         if (!(f = makestr(prefix, base, (char *)0))) {
  79                 Free(parent);
  80                 errno = ENOMEM;
  81                 return (0);
  82         }
  83         file = makepath(parent, f, (char *)0);
  84         Free (f);
  85         Free (parent);
  86
  87         return (file);
  88 }