external/bsd/pkg_install/dist/lib/lpkg.c

   1 /*      $NetBSD: lpkg.c,v 1.6 2009/02/02 12:35:01 joerg Exp $   */
   2
   3 /*
   4  * Copyright (c) 1999 Christian E. Hopps
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  *
  29  * Package-list auxiliary functions
  30  */
  31
  32 #if HAVE_CONFIG_H
  33 #include "config.h"
  34 #endif
  35 #include <nbcompat.h>
  36 #if HAVE_ERR_H
  37 #include <err.h>
  38 #endif
  39 #include "lib.h"
  40
  41 /*
  42  * Add a package to the (add/recursive delete) list
  43  */
  44 lpkg_t *
  45 alloc_lpkg(const char *pkgname)
  46 {
  47         lpkg_t *lpp;
  48
  49         lpp = xmalloc(sizeof(*lpp));
  50         lpp->lp_name = xstrdup(pkgname);
  51         return (lpp);
  52 }
  53
  54 void
  55 free_lpkg(lpkg_t *lpp)
  56 {
  57         free(lpp->lp_name);
  58         free(lpp);
  59 }
  60
  61 lpkg_t *
  62 find_on_queue(lpkg_head_t *qp, const char *name)
  63 {
  64         lpkg_t *lpp;
  65
  66         for (lpp = TAILQ_FIRST(qp); lpp; lpp = TAILQ_NEXT(lpp, lp_link))
  67                 if (!strcmp(name, lpp->lp_name))
  68                         return (lpp);
  69         return (0);
  70 }