/usr/include/libucsi/dvb/data_broadcast_descriptor.h is in dvb-apps 1.1.1+rev1500-1.1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /*
* section and descriptor parser
*
* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
* Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef _UCSI_DVB_DATA_BROADCAST_DESCRIPTOR
#define _UCSI_DVB_DATA_BROADCAST_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
#include <libucsi/types.h>
/**
* dvb_data_broadcast_descriptor structure.
*/
struct dvb_data_broadcast_descriptor {
struct descriptor d;
uint16_t data_broadcast_id;
uint8_t component_tag;
uint8_t selector_length;
/* uint8_t selector[] */
/* struct dvb_data_broadcast_descriptor_part2 part2 */
} __ucsi_packed;
/**
* Second part of a dvb_data_broadcast_descriptor following the variable length selector field.
*/
struct dvb_data_broadcast_descriptor_part2 {
iso639lang_t language_code;
uint8_t text_length;
/* uint8_t text[] */
} __ucsi_packed;
/**
* Process a dvb_data_broadcast_descriptor.
*
* @param d Generic descriptor pointer.
* @return dvb_data_broadcast_descriptor pointer, or NULL on error.
*/
static inline struct dvb_data_broadcast_descriptor*
dvb_data_broadcast_descriptor_codec(struct descriptor* d)
{
struct dvb_data_broadcast_descriptor *p =
(struct dvb_data_broadcast_descriptor *) d;
struct dvb_data_broadcast_descriptor_part2 *p2;
uint8_t* buf = (uint8_t*) d + 2;
uint32_t pos = sizeof(struct dvb_data_broadcast_descriptor) - 2;
uint32_t len = d->len;
if (pos > len)
return NULL;
bswap16(buf + 2);
pos += p->selector_length;
if (pos > len)
return NULL;
p2 = (struct dvb_data_broadcast_descriptor_part2*) (buf + 2 + pos);
pos += sizeof(struct dvb_data_broadcast_descriptor_part2);
if (pos > len)
return NULL;
pos += p2->text_length;
if (pos != len)
return NULL;
return p;
}
/**
* Accessor for the selector field of a dvb_data_broadcast_descriptor.
*
* @param d dvb_data_broadcast_descriptor pointer.
* @return pointer to the field.
*/
static inline uint8_t *
dvb_data_broadcast_descriptor_selector(struct dvb_data_broadcast_descriptor *d)
{
return (uint8_t *) d + sizeof(struct dvb_data_broadcast_descriptor);
}
/**
* Accessor for the second part of a dvb_data_broadcast_descriptor.
*
* @param d dvb_data_broadcast_descriptor pointer.
* @return dvb_data_broadcast_descriptor_part2 pointer.
*/
static inline struct dvb_data_broadcast_descriptor_part2 *
dvb_data_broadcast_descriptor_part2(struct dvb_data_broadcast_descriptor *d)
{
return (struct dvb_data_broadcast_descriptor_part2*)
((uint8_t*) d + sizeof(struct dvb_data_broadcast_descriptor) +
d->selector_length);
}
/**
* Accessor for the text field in a dvb_data_broadcast_descriptor_part2.
*
* @param d dvb_data_broadcast_descriptor_part2 pointer.
* @return pointer to the field.
*/
static inline uint8_t *
dvb_data_broadcast_descriptor_part2_text(struct dvb_data_broadcast_descriptor_part2 *d)
{
return (uint8_t *) d + sizeof(struct dvb_data_broadcast_descriptor_part2);
}
#ifdef __cplusplus
}
#endif
#endif
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