1*bfd817adSflorian /* $OpenBSD: stringlist.c,v 1.14 2019/05/16 12:44:18 florian Exp $ */
2*bfd817adSflorian /* $NetBSD: stringlist.c,v 1.2 1997/01/17 07:26:20 lukem Exp $ */
3*bfd817adSflorian
4*bfd817adSflorian /*
5*bfd817adSflorian * Copyright (c) 1994 Christos Zoulas
6*bfd817adSflorian * All rights reserved.
7*bfd817adSflorian *
8*bfd817adSflorian * Redistribution and use in source and binary forms, with or without
9*bfd817adSflorian * modification, are permitted provided that the following conditions
10*bfd817adSflorian * are met:
11*bfd817adSflorian * 1. Redistributions of source code must retain the above copyright
12*bfd817adSflorian * notice, this list of conditions and the following disclaimer.
13*bfd817adSflorian * 2. Redistributions in binary form must reproduce the above copyright
14*bfd817adSflorian * notice, this list of conditions and the following disclaimer in the
15*bfd817adSflorian * documentation and/or other materials provided with the distribution.
16*bfd817adSflorian *
17*bfd817adSflorian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
18*bfd817adSflorian * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19*bfd817adSflorian * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*bfd817adSflorian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
21*bfd817adSflorian * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*bfd817adSflorian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*bfd817adSflorian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*bfd817adSflorian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*bfd817adSflorian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*bfd817adSflorian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*bfd817adSflorian * SUCH DAMAGE.
28*bfd817adSflorian */
29*bfd817adSflorian
30*bfd817adSflorian #ifndef SMALL
31*bfd817adSflorian
32*bfd817adSflorian #include <stdio.h>
33*bfd817adSflorian #include <string.h>
34*bfd817adSflorian #include <err.h>
35*bfd817adSflorian #include <stdlib.h>
36*bfd817adSflorian
37*bfd817adSflorian #include "stringlist.h"
38*bfd817adSflorian
39*bfd817adSflorian #define _SL_CHUNKSIZE 20
40*bfd817adSflorian
41*bfd817adSflorian /*
42*bfd817adSflorian * sl_init(): Initialize a string list
43*bfd817adSflorian */
44*bfd817adSflorian StringList *
sl_init(void)45*bfd817adSflorian sl_init(void)
46*bfd817adSflorian {
47*bfd817adSflorian StringList *sl = malloc(sizeof(StringList));
48*bfd817adSflorian if (sl == NULL)
49*bfd817adSflorian err(1, "stringlist");
50*bfd817adSflorian
51*bfd817adSflorian sl->sl_cur = 0;
52*bfd817adSflorian sl->sl_max = _SL_CHUNKSIZE;
53*bfd817adSflorian sl->sl_str = calloc(sl->sl_max, sizeof(char *));
54*bfd817adSflorian if (sl->sl_str == NULL)
55*bfd817adSflorian err(1, "stringlist");
56*bfd817adSflorian return sl;
57*bfd817adSflorian }
58*bfd817adSflorian
59*bfd817adSflorian
60*bfd817adSflorian /*
61*bfd817adSflorian * sl_add(): Add an item to the string list
62*bfd817adSflorian */
63*bfd817adSflorian void
sl_add(StringList * sl,char * name)64*bfd817adSflorian sl_add(StringList *sl, char *name)
65*bfd817adSflorian {
66*bfd817adSflorian if (sl->sl_cur == sl->sl_max - 1) {
67*bfd817adSflorian sl->sl_max += _SL_CHUNKSIZE;
68*bfd817adSflorian sl->sl_str = reallocarray(sl->sl_str, sl->sl_max,
69*bfd817adSflorian sizeof(char *));
70*bfd817adSflorian if (sl->sl_str == NULL)
71*bfd817adSflorian err(1, "stringlist");
72*bfd817adSflorian }
73*bfd817adSflorian sl->sl_str[sl->sl_cur++] = name;
74*bfd817adSflorian }
75*bfd817adSflorian
76*bfd817adSflorian
77*bfd817adSflorian /*
78*bfd817adSflorian * sl_free(): Free a stringlist
79*bfd817adSflorian */
80*bfd817adSflorian void
sl_free(StringList * sl,int all)81*bfd817adSflorian sl_free(StringList *sl, int all)
82*bfd817adSflorian {
83*bfd817adSflorian size_t i;
84*bfd817adSflorian
85*bfd817adSflorian if (sl == NULL)
86*bfd817adSflorian return;
87*bfd817adSflorian if (sl->sl_str) {
88*bfd817adSflorian if (all)
89*bfd817adSflorian for (i = 0; i < sl->sl_cur; i++)
90*bfd817adSflorian free(sl->sl_str[i]);
91*bfd817adSflorian free(sl->sl_str);
92*bfd817adSflorian }
93*bfd817adSflorian free(sl);
94*bfd817adSflorian }
95*bfd817adSflorian
96*bfd817adSflorian #endif /* !SMALL */
97*bfd817adSflorian
98