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
27 lws_settings_instance_t *
lws_settings_init(const lws_settings_ops_t * so,void * opaque_plat)28 lws_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
41 void
lws_settings_deinit(lws_settings_instance_t ** si)42 lws_settings_deinit(lws_settings_instance_t **si)
43 {
44 lws_free(*si);
45 *si = NULL;
46 }
47
48 int
lws_settings_plat_printf(lws_settings_instance_t * si,const char * name,const char * format,...)49 lws_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