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1 /*
2  * Copyright (c) 2011-2012 - Mauro Carvalho Chehab
3  * Copyright (c) 2012 - Andre Roth <neolynx@gmail.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU Lesser General Public License as published by
7  * the Free Software Foundation version 2.1 of the License.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18  *
19  */
20 
21 #include <libdvbv5/desc_service.h>
22 #include <libdvbv5/dvb-fe.h>
23 #include <parse_string.h>
24 
25 #if __GNUC__ >= 9
26 #pragma GCC diagnostic ignored "-Waddress-of-packed-member"
27 #endif
28 
dvb_desc_service_init(struct dvb_v5_fe_parms * parms,const uint8_t * buf,struct dvb_desc * desc)29 int dvb_desc_service_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, struct dvb_desc *desc)
30 {
31 	struct dvb_desc_service *service = (struct dvb_desc_service *) desc;
32 	const uint8_t *endbuf = buf + desc->length;
33 	uint8_t len;        /* the length of the string in the input data */
34 	uint8_t len1, len2; /* the lenght of the output strings */
35 
36 	service->provider = NULL;
37 	service->provider_emph = NULL;
38 	service->name = NULL;
39 	service->name_emph = NULL;
40 
41 	if (buf + 1 > endbuf) {
42 		dvb_logerr("%s: short read %d bytes", __func__, 1);
43 		return -1;
44 	}
45 	service->service_type = buf[0];
46 	buf++;
47 
48 	if (buf + 1 > endbuf) {
49 		dvb_logerr("%s: a short read %d bytes", __func__, 1);
50 		return -1;
51 	}
52 
53 	len = buf[0];
54 	len1 = len;
55 	buf++;
56 
57 	if (buf + len > endbuf) {
58 		dvb_logerr("%s: b short read %d bytes", __func__, len);
59 		return -1;
60 	}
61 
62 	if (len) {
63 		dvb_parse_string(parms, &service->provider, &service->provider_emph, buf, len1);
64 		buf += len;
65 	}
66 
67 	if (buf + 1 > endbuf) {
68 		dvb_logerr("%s: c short read %d bytes", __func__, 1);
69 		return -1;
70 	}
71 
72 	len = buf[0];
73 	len2 = len;
74 	buf++;
75 
76 	if (buf + len > endbuf) {
77 		dvb_logerr("%s: d short read %d bytes", __func__, len);
78 		return -1;
79 	}
80 
81 	if (len) {
82 		dvb_parse_string(parms, &service->name, &service->name_emph, buf, len2);
83 		buf += len;
84 	}
85 	return 0;
86 }
87 
dvb_desc_service_free(struct dvb_desc * desc)88 void dvb_desc_service_free(struct dvb_desc *desc)
89 {
90 	struct dvb_desc_service *service = (struct dvb_desc_service *) desc;
91 	free(service->provider);
92 	free(service->provider_emph);
93 	free(service->name);
94 	free(service->name_emph);
95 }
96 
dvb_desc_service_print(struct dvb_v5_fe_parms * parms,const struct dvb_desc * desc)97 void dvb_desc_service_print(struct dvb_v5_fe_parms *parms, const struct dvb_desc *desc)
98 {
99 	const struct dvb_desc_service *service = (const struct dvb_desc_service *) desc;
100 	dvb_loginfo("|           service type  %d", service->service_type);
101 	dvb_loginfo("|           provider      '%s'", service->provider);
102 	dvb_loginfo("|           name          '%s'", service->name);
103 }
104 
105