usr/src/cmd/lp/lib/printers/default.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 1997 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 1.6   */
  32 /* EMACS_MODES: !fill, lnumb, !overwrite, !nodelete, !picture */
  33
  34 #include "stdio.h"
  35 #include "stdlib.h"
  36
  37 #include "lp.h"
  38
  39 /**
  40  ** getdefault() - READ THE NAME OF THE DEFAULT DESTINATION FROM DISK
  41  **/
  42
  43 char *
  44 getdefault(void)
  45 {
  46         return (loadline(Lp_Default));
  47 }
  48
  49 /**
  50  ** putdefault() - WRITE THE NAME OF THE DEFAULT DESTINATION TO DISK
  51  **/
  52
  53 int
  54 putdefault(char *dflt)
  55 {
  56         int fd;
  57
  58         if (!dflt || !*dflt)
  59                 return (deldefault());
  60
  61         if ((fd = open_locked(Lp_Default, "w", MODE_READ)) < 0)
  62                 return (-1);
  63
  64         fdprintf(fd, "%s\n", dflt);
  65
  66         close(fd);
  67         return (0);
  68 }
  69
  70 /**
  71  ** deldefault() - REMOVE THE NAME OF THE DEFAULT DESTINATION
  72  **/
  73
  74 int
  75 deldefault(void)
  76 {
  77         return (rmfile(Lp_Default));
  78 }