/* #line 1 "./ragel/tsip_parser_header_RSeq.rl" */ /* * Copyright (C) 2010-2011 Mamadou Diop. * * Contact: Mamadou Diop * * This file is part of Open Source Doubango Framework. * * DOUBANGO is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * DOUBANGO 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with DOUBANGO. * */ /**@file tsip_header_RSeq.c * @brief SIP RSeq header as per RFC 3262. * * @author Mamadou Diop * */ #include "tinysip/headers/tsip_header_RSeq.h" #include "tinysip/parsers/tsip_parser_uri.h" #include "tsk_debug.h" #include "tsk_memory.h" /*********************************** * Ragel state machine. */ /* #line 65 "./ragel/tsip_parser_header_RSeq.rl" */ tsip_header_RSeq_t* tsip_header_RSeq_create(uint32_t seq) { return tsk_object_new(TSIP_HEADER_RSEQ_VA_ARGS(seq)); } tsip_header_RSeq_t* tsip_header_RSeq_create_null() { return tsip_header_RSeq_create(0); } int tsip_header_RSeq_serialize(const tsip_header_t* header, tsk_buffer_t* output) { if(header){ const tsip_header_RSeq_t *RSeq = (const tsip_header_RSeq_t *)header; return tsk_buffer_append_2(output, "%u", RSeq->seq); } return -1; } tsip_header_RSeq_t *tsip_header_RSeq_parse(const char *data, tsk_size_t size) { int cs = 0; const char *p = data; const char *pe = p + size; const char *eof = pe; tsip_header_RSeq_t *hdr_rseq = tsip_header_RSeq_create_null(); const char *tag_start = tsk_null; /* #line 81 "./src/headers/tsip_header_RSeq.c" */ static const char _tsip_machine_parser_header_RSeq_actions[] = { 0, 1, 0, 1, 1, 1, 2 }; static const char _tsip_machine_parser_header_RSeq_key_offsets[] = { 0, 0, 2, 4, 6, 8, 11, 16, 17, 19, 23, 26, 27 }; static const char _tsip_machine_parser_header_RSeq_trans_keys[] = { 82, 114, 83, 115, 69, 101, 81, 113, 9, 32, 58, 9, 13, 32, 48, 57, 10, 9, 32, 9, 32, 48, 57, 13, 48, 57, 10, 0 }; static const char _tsip_machine_parser_header_RSeq_single_lengths[] = { 0, 2, 2, 2, 2, 3, 3, 1, 2, 2, 1, 1, 0 }; static const char _tsip_machine_parser_header_RSeq_range_lengths[] = { 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0 }; static const char _tsip_machine_parser_header_RSeq_index_offsets[] = { 0, 0, 3, 6, 9, 12, 16, 21, 23, 26, 30, 33, 35 }; static const char _tsip_machine_parser_header_RSeq_indicies[] = { 0, 0, 1, 2, 2, 1, 3, 3, 1, 4, 4, 1, 4, 4, 5, 1, 5, 6, 5, 7, 1, 8, 1, 9, 9, 1, 9, 9, 7, 1, 10, 11, 1, 12, 1, 1, 0 }; static const char _tsip_machine_parser_header_RSeq_trans_targs[] = { 2, 0, 3, 4, 5, 6, 7, 10, 8, 9, 11, 10, 12 }; static const char _tsip_machine_parser_header_RSeq_trans_actions[] = { 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 3, 0, 5 }; static const int tsip_machine_parser_header_RSeq_start = 1; static const int tsip_machine_parser_header_RSeq_first_final = 12; static const int tsip_machine_parser_header_RSeq_error = 0; static const int tsip_machine_parser_header_RSeq_en_main = 1; /* #line 98 "./ragel/tsip_parser_header_RSeq.rl" */ (void)(eof); (void)(tsip_machine_parser_header_RSeq_first_final); (void)(tsip_machine_parser_header_RSeq_error); (void)(tsip_machine_parser_header_RSeq_en_main); /* #line 144 "./src/headers/tsip_header_RSeq.c" */ { cs = tsip_machine_parser_header_RSeq_start; } /* #line 103 "./ragel/tsip_parser_header_RSeq.rl" */ /* #line 151 "./src/headers/tsip_header_RSeq.c" */ { int _klen; unsigned int _trans; const char *_acts; unsigned int _nacts; const char *_keys; if ( p == pe ) goto _test_eof; if ( cs == 0 ) goto _out; _resume: _keys = _tsip_machine_parser_header_RSeq_trans_keys + _tsip_machine_parser_header_RSeq_key_offsets[cs]; _trans = _tsip_machine_parser_header_RSeq_index_offsets[cs]; _klen = _tsip_machine_parser_header_RSeq_single_lengths[cs]; if ( _klen > 0 ) { const char *_lower = _keys; const char *_mid; const char *_upper = _keys + _klen - 1; while (1) { if ( _upper < _lower ) break; _mid = _lower + ((_upper-_lower) >> 1); if ( (*p) < *_mid ) _upper = _mid - 1; else if ( (*p) > *_mid ) _lower = _mid + 1; else { _trans += (_mid - _keys); goto _match; } } _keys += _klen; _trans += _klen; } _klen = _tsip_machine_parser_header_RSeq_range_lengths[cs]; if ( _klen > 0 ) { const char *_lower = _keys; const char *_mid; const char *_upper = _keys + (_klen<<1) - 2; while (1) { if ( _upper < _lower ) break; _mid = _lower + (((_upper-_lower) >> 1) & ~1); if ( (*p) < _mid[0] ) _upper = _mid - 2; else if ( (*p) > _mid[1] ) _lower = _mid + 2; else { _trans += ((_mid - _keys)>>1); goto _match; } } _trans += _klen; } _match: _trans = _tsip_machine_parser_header_RSeq_indicies[_trans]; cs = _tsip_machine_parser_header_RSeq_trans_targs[_trans]; if ( _tsip_machine_parser_header_RSeq_trans_actions[_trans] == 0 ) goto _again; _acts = _tsip_machine_parser_header_RSeq_actions + _tsip_machine_parser_header_RSeq_trans_actions[_trans]; _nacts = (unsigned int) *_acts++; while ( _nacts-- > 0 ) { switch ( *_acts++ ) { case 0: /* #line 49 "./ragel/tsip_parser_header_RSeq.rl" */ { tag_start = p; } break; case 1: /* #line 53 "./ragel/tsip_parser_header_RSeq.rl" */ { TSK_PARSER_SET_UINT(hdr_rseq->seq); } break; case 2: /* #line 57 "./ragel/tsip_parser_header_RSeq.rl" */ { } break; /* #line 242 "./src/headers/tsip_header_RSeq.c" */ } } _again: if ( cs == 0 ) goto _out; if ( ++p != pe ) goto _resume; _test_eof: {} _out: {} } /* #line 104 "./ragel/tsip_parser_header_RSeq.rl" */ if( cs < /* #line 258 "./src/headers/tsip_header_RSeq.c" */ 12 /* #line 105 "./ragel/tsip_parser_header_RSeq.rl" */ ){ TSK_DEBUG_ERROR("Failed to parse 'RSeq' header."); TSK_OBJECT_SAFE_FREE(hdr_rseq); } return hdr_rseq; } //======================================================== // RSeq header object definition // static tsk_object_t* tsip_header_RSeq_ctor(tsk_object_t *self, va_list * app) { tsip_header_RSeq_t *RSeq = self; if(RSeq){ TSIP_HEADER(RSeq)->type = tsip_htype_RSeq; TSIP_HEADER(RSeq)->serialize = tsip_header_RSeq_serialize; RSeq->seq = va_arg(*app, uint32_t); } else{ TSK_DEBUG_ERROR("Failed to create new RSeq header."); } return self; } static tsk_object_t* tsip_header_RSeq_dtor(tsk_object_t *self) { tsip_header_RSeq_t *RSeq = self; if(RSeq){ TSK_OBJECT_SAFE_FREE(TSIP_HEADER_PARAMS(RSeq)); } else{ TSK_DEBUG_ERROR("Null RSeq header."); } return self; } static const tsk_object_def_t tsip_header_RSeq_def_s = { sizeof(tsip_header_RSeq_t), tsip_header_RSeq_ctor, tsip_header_RSeq_dtor, tsk_null }; const tsk_object_def_t *tsip_header_RSeq_def_t = &tsip_header_RSeq_def_s;