1 /*
2 * SysDB - src/utils/strings.c
3 * Copyright (C) 2016 Sebastian 'tokkee' Harl <sh@tokkee.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
28 #if HAVE_CONFIG_H
29 # include "config.h"
30 #endif
32 #include "utils/strings.h"
34 #include <stdlib.h>
35 #include <string.h>
37 /*
38 * public API
39 */
41 int
42 stringv_copy(char ***dst, size_t *dst_len,
43 const char * const *src, size_t src_len)
44 {
45 char **tmp;
46 size_t i;
48 if (*dst) {
49 tmp = realloc(*dst, src_len * sizeof(*tmp));
50 if (tmp)
51 memset(tmp, 0, src_len * sizeof(*tmp));
52 }
53 else
54 tmp = calloc(src_len, sizeof(*tmp));
56 if (! tmp)
57 return -1;
59 *dst = tmp;
60 *dst_len = src_len;
61 for (i = 0; i < src_len; ++i) {
62 (*dst)[i] = strdup(src[i]);
63 if (! (*dst)[i])
64 return -1;
65 }
66 return 0;
67 } /* stringv_copy */
69 void
70 stringv_free(char ***s, size_t *s_len)
71 {
72 size_t i;
74 if (*s) {
75 for (i = 0; i < *s_len; ++i) {
76 if ((*s)[i])
77 free((*s)[i]);
78 (*s)[i] = NULL;
79 }
80 free(*s);
81 }
83 *s = NULL;
84 *s_len = 0;
85 } /* stringv_free */
87 /* vim: set tw=78 sw=4 ts=4 noexpandtab : */