1/*
2 * lws_settings
3 *
4 * Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25#include <private-lib-core.h>
26
27lws_settings_instance_t *
28lws_settings_init(const lws_settings_ops_t *so, void *opaque_plat)
29{
30	lws_settings_instance_t *si = lws_zalloc(sizeof(*si), __func__);
31
32	if (!si)
33		return NULL;
34
35	si->so = so;
36	si->opaque_plat = opaque_plat;
37
38	return si;
39}
40
41void
42lws_settings_deinit(lws_settings_instance_t **si)
43{
44	lws_free(*si);
45	*si = NULL;
46}
47
48int
49lws_settings_plat_printf(lws_settings_instance_t *si, const char *name,
50			 const char *format, ...)
51{
52	va_list ap;
53	uint8_t *p;
54	int n;
55
56	va_start(ap, format);
57	n = vsnprintf(NULL, 0, format, ap);
58	va_end(ap);
59
60	p = lws_malloc(n + 2, __func__);
61	va_start(ap, format);
62	vsnprintf((char *)p, n + 2, format, ap);
63	va_end(ap);
64
65	n = si->so->set(si, name, p, n);
66	lws_free(p);
67
68	return n;
69}
70