contrib/mdocml/compat_stringlist.c

0 #include "config.h"
3 #if HAVE_STRINGLIST
5 int dummy;
7 #else
9 /*	$Id: compat_stringlist.c,v 1.6 2015/11/07 14:22:29 schwarze Exp $	*/
11  * Copyright (c) 1994 Christos Zoulas <christos@netbsd.org>
12  * All rights reserved.
14  * Redistribution and use in source and binary forms, with or without
15  * modification, are permitted provided that the following conditions
16  * are met:
17  * 1. Redistributions of source code must retain the above copyright
18  *    notice, this list of conditions and the following disclaimer.
19  * 2. Redistributions in binary form must reproduce the above copyright
20  *    notice, this list of conditions and the following disclaimer in the
21  *    documentation and/or other materials provided with the distribution.
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
24  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
27  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
36 #if HAVE_ERR
37 #include <err.h>
38 #endif
39 #include <stdlib.h>
40 #include <string.h>
41 #include "compat_stringlist.h"
43 #define _SL_CHUNKSIZE	20
46  * sl_init(): Initialize a string list
48 StringList *
49 sl_init(void)
51 	StringList *sl;
53 	sl = malloc(sizeof(StringList));
54 	if (sl == NULL)
55 		err(1, "stringlist");
57 	sl->sl_cur = 0;
58 	sl->sl_max = _SL_CHUNKSIZE;
59 	sl->sl_str = reallocarray(NULL, sl->sl_max, sizeof(char *));
60 	if (sl->sl_str == NULL)
61 		err(1, "stringlist");
62 	return sl;
67  * sl_add(): Add an item to the string list
69 int
70 sl_add(StringList *sl, char *name)
72 	if (sl->sl_cur == sl->sl_max - 1) {
73 		sl->sl_max += _SL_CHUNKSIZE;
74 		sl->sl_str = reallocarray(sl->sl_str,
75 		    sl->sl_max, sizeof(char *));
76 		if (sl->sl_str == NULL)
77 			return (-1);
79 	sl->sl_str[sl->sl_cur++] = name;
80 	return (0);
85  * sl_free(): Free a stringlist
87 void
88 sl_free(StringList *sl, int all)
90 	size_t i;
92 	if (sl == NULL)
93 		return;
94 	if (sl->sl_str) {
95 		if (all)
96 			for (i = 0; i < sl->sl_cur; i++)
97 				free(sl->sl_str[i]);
98 		free(sl->sl_str);
100 	free(sl);
105  * sl_find(): Find a name in the string list
107 char *
108 sl_find(StringList *sl, const char *name)
110 	size_t i;
112 	for (i = 0; i < sl->sl_cur; i++)
113 		if (strcmp(sl->sl_str[i], name) == 0)
114 			return sl->sl_str[i];
116 	return NULL;
119 #endif