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* section and descriptor parser
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* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
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* Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#include <libucsi/dvb/sit_section.h>
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struct dvb_sit_section * dvb_sit_section_codec(struct section_ext * ext)
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uint8_t * buf = (uint8_t *) ext;
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struct dvb_sit_section * ret = (struct dvb_sit_section *) ext;
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size_t pos = sizeof(struct section_ext);
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size_t len = section_ext_length(ext);
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if (len < sizeof(struct dvb_sit_section))
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if ((pos + ret->transmission_info_loop_length) > len)
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if (verify_descriptors(buf + pos, ret->transmission_info_loop_length))
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pos += ret->transmission_info_loop_length;
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struct dvb_sit_service * service = (void*)(buf + pos);
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if ((pos + sizeof(struct dvb_sit_service)) > len)
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bswap16(buf + pos + 2);
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bswap16(buf + pos + 4);
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pos += sizeof(struct dvb_sit_service);
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if ((pos + service->service_loop_length) > len)
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if (verify_descriptors(buf + pos, service->service_loop_length))
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pos += service->service_loop_length;