1 /*
2 * Copyright (c) 1994 Christos Zoulas
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 /*
30 * Copyright 2012 Nexenta Systems, Inc. All rights reserved.
31 */
32
33 #include <err.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37
38 #include "stringlist.h"
39
40 #define _SL_CHUNKSIZE 20
41
42 stringlist *
sl_init(void)43 sl_init(void)
44 {
45 stringlist *sl;
46
47 if ((sl = malloc(sizeof (stringlist))) == NULL)
48 err(1, "malloc");
49
50 sl->sl_cur = 0;
51 sl->sl_max = _SL_CHUNKSIZE;
52 sl->sl_str = malloc(sl->sl_max * sizeof (char *));
53 if (sl->sl_str == NULL)
54 err(1, "malloc");
55
56 return (sl);
57 }
58
59 int
sl_add(stringlist * sl,char * name)60 sl_add(stringlist *sl, char *name)
61 {
62
63 if (sl->sl_cur == sl->sl_max - 1) {
64 sl->sl_max += _SL_CHUNKSIZE;
65 sl->sl_str = realloc(sl->sl_str, sl->sl_max * sizeof (char *));
66 if (sl->sl_str == NULL)
67 return (-1);
68 }
69 sl->sl_str[sl->sl_cur++] = name;
70
71 return (0);
72 }
73
74
75 void
sl_free(stringlist * sl,int all)76 sl_free(stringlist *sl, int all)
77 {
78 size_t i;
79
80 if (sl == NULL)
81 return;
82 if (sl->sl_str) {
83 if (all)
84 for (i = 0; i < sl->sl_cur; i++)
85 free(sl->sl_str[i]);
86 free(sl->sl_str);
87 }
88 free(sl);
89 }
90
91
92 char *
sl_find(stringlist * sl,char * name)93 sl_find(stringlist *sl, char *name)
94 {
95 size_t i;
96
97 for (i = 0; i < sl->sl_cur; i++)
98 if (strcmp(sl->sl_str[i], name) == 0)
99 return (sl->sl_str[i]);
100
101 return (NULL);
102 }
103