usr.bin/make/strlist.c

   1 /*      $NetBSD: strlist.c,v 1.3 2009/01/16 21:15:34 dsl Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2008 - 2009 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by David Laight.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of The NetBSD Foundation nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef MAKE_NATIVE
  36 static char rcsid[] = "$NetBSD: strlist.c,v 1.3 2009/01/16 21:15:34 dsl Exp $";
  37 #else
  38 #include <sys/cdefs.h>
  39 #ifndef lint
  40 __RCSID("$NetBSD: strlist.c,v 1.3 2009/01/16 21:15:34 dsl Exp $");
  41 #endif /* not lint */
  42 #endif
  43
  44 #include <stddef.h>
  45 #include <stdlib.h>
  46 #include "strlist.h"
  47 #include "make_malloc.h"
  48
  49 void
  50 strlist_init(strlist_t *sl)
  51 {
  52         sl->sl_num = 0;
  53         sl->sl_max = 0;
  54         sl->sl_items = NULL;
  55 }
  56
  57 void
  58 strlist_clean(strlist_t *sl)
  59 {
  60         char *str;
  61         int i;
  62
  63         STRLIST_FOREACH(str, sl, i)
  64                 free(str);
  65         free(sl->sl_items);
  66
  67         sl->sl_num = 0;
  68         sl->sl_max = 0;
  69         sl->sl_items = NULL;
  70 }
  71
  72 void
  73 strlist_add_str(strlist_t *sl, char *str, unsigned int info)
  74 {
  75         unsigned int n;
  76         strlist_item_t *items;
  77
  78         if (str == NULL)
  79             return;
  80
  81         n = sl->sl_num + 1;
  82         sl->sl_num = n;
  83         items = sl->sl_items;
  84         if (n >= sl->sl_max) {
  85             items = bmake_realloc(items, (n + 7) * sizeof *sl->sl_items);
  86             sl->sl_items = items;
  87             sl->sl_max = n + 6;
  88         }
  89         items += n - 1;
  90         items->si_str = str;
  91         items->si_info = info;
  92         items[1].si_str = NULL;         /* STRLIST_FOREACH() terminator */
  93 }