1 /* $NetBSD: str_list.c,v 1.1.1.1 2008/12/22 00:17:54 haad Exp $ */ 2 3 /* 4 * Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved. 5 * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. 6 * 7 * This file is part of LVM2. 8 * 9 * This copyrighted material is made available to anyone wishing to use, 10 * modify, copy, or redistribute it subject to the terms and conditions 11 * of the GNU Lesser General Public License v.2.1. 12 * 13 * You should have received a copy of the GNU Lesser General Public License 14 * along with this program; if not, write to the Free Software Foundation, 15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 16 */ 17 18 #include "lib.h" 19 #include "str_list.h" 20 21 struct dm_list *str_list_create(struct dm_pool *mem) 22 { 23 struct dm_list *sl; 24 25 if (!(sl = dm_pool_alloc(mem, sizeof(struct dm_list)))) 26 return_NULL; 27 28 dm_list_init(sl); 29 30 return sl; 31 } 32 33 int str_list_add(struct dm_pool *mem, struct dm_list *sll, const char *str) 34 { 35 struct str_list *sln; 36 37 if (!str) 38 return_0; 39 40 /* Already in list? */ 41 if (str_list_match_item(sll, str)) 42 return 1; 43 44 if (!(sln = dm_pool_alloc(mem, sizeof(*sln)))) 45 return_0; 46 47 sln->str = str; 48 dm_list_add(sll, &sln->list); 49 50 return 1; 51 } 52 53 int str_list_del(struct dm_list *sll, const char *str) 54 { 55 struct dm_list *slh, *slht; 56 57 dm_list_iterate_safe(slh, slht, sll) { 58 if (!strcmp(str, dm_list_item(slh, struct str_list)->str)) 59 dm_list_del(slh); 60 } 61 62 return 1; 63 } 64 65 int str_list_dup(struct dm_pool *mem, struct dm_list *sllnew, 66 const struct dm_list *sllold) 67 { 68 struct str_list *sl; 69 70 dm_list_init(sllnew); 71 72 dm_list_iterate_items(sl, sllold) { 73 if (!str_list_add(mem, sllnew, dm_pool_strdup(mem, sl->str))) 74 return_0; 75 } 76 77 return 1; 78 } 79 80 /* 81 * Is item on list? 82 */ 83 int str_list_match_item(const struct dm_list *sll, const char *str) 84 { 85 struct str_list *sl; 86 87 dm_list_iterate_items(sl, sll) 88 if (!strcmp(str, sl->str)) 89 return 1; 90 91 return 0; 92 } 93 94 /* 95 * Is at least one item on both lists? 96 */ 97 int str_list_match_list(const struct dm_list *sll, const struct dm_list *sll2) 98 { 99 struct str_list *sl; 100 101 dm_list_iterate_items(sl, sll) 102 if (str_list_match_item(sll2, sl->str)) 103 return 1; 104 105 return 0; 106 } 107 108 /* 109 * Do both lists contain the same set of items? 110 */ 111 int str_list_lists_equal(const struct dm_list *sll, const struct dm_list *sll2) 112 { 113 struct str_list *sl; 114 115 if (dm_list_size(sll) != dm_list_size(sll2)) 116 return 0; 117 118 dm_list_iterate_items(sl, sll) 119 if (!str_list_match_item(sll2, sl->str)) 120 return 0; 121 122 return 1; 123 } 124