186 lines
4.5 KiB
Ragel
186 lines
4.5 KiB
Ragel
/*
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* Copyright (C) 2009 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)yahoo.fr>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tmsrp_header_Byte_Range.c
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* @brief MSRP 'Byte-Range' header.
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*
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* @author Mamadou Diop <diopmamadou(at)yahoo.fr>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tinyMSRP/headers/tmsrp_header_Byte-Range.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#include "tsk_string.h"
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#include <string.h>
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/***********************************
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* Ragel state machine.
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*/
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%%{
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machine tmsrp_machine_parser_header_Byte_Range;
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# Includes
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include tmsrp_machine_utils "./tmsrp_machine_utils.rl";
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action tag{
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tag_start = p;
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}
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action parse_start{
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TSK_PARSER_SET_INTEGER_EX(hdr_Byte_Range->start, int64_t, atoi64);
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}
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action parse_end{
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if(tag_start && *tag_start == '*'){
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hdr_Byte_Range->end = -1;
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}
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else{
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TSK_PARSER_SET_INTEGER_EX(hdr_Byte_Range->end, int64_t, atoi64);
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}
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}
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action parse_total{
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if(tag_start && *tag_start == '*'){
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hdr_Byte_Range->end = -1;
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}
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else{
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TSK_PARSER_SET_INTEGER_EX(hdr_Byte_Range->total, int64_t, atoi64);
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}
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}
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#// Byte-Range = "Byte-Range:" SP range-start "-" range-end "/" total
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#//range-start = 1*DIGIT
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#//range-end = 1*DIGIT / "*"
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#//total = 1*DIGIT / "*"
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Byte_Range = "Byte-Range:"i SP DIGIT+>tag %parse_start "-" (DIGIT+ | "*")>tag %parse_end "/" (DIGIT+ | "*")>tag %parse_total;
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# Entry point
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main := Byte_Range :>CRLF?;
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}%%
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int tmsrp_header_Byte_Range_tostring(const tmsrp_header_t* header, tsk_buffer_t* output)
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{
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if(header)
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{
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const tmsrp_header_Byte_Range_t *Byte_Range = (const tmsrp_header_Byte_Range_t *)header;
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tsk_istr_t start, end, total;
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if(Byte_Range->start>=0){
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tsk_itoa(Byte_Range->start, &start);
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}
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if(Byte_Range->end>=0){
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tsk_itoa(Byte_Range->end, &end);
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}
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if(Byte_Range->total>=0){
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tsk_itoa(Byte_Range->total, &total);
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}
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return tsk_buffer_appendEx(output, "%s-%s/%s",
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Byte_Range->start>=0 ? start : "*",
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Byte_Range->end>=0 ? end : "*",
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Byte_Range->total>=0 ? total : "*"
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);
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}
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return -1;
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}
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tmsrp_header_Byte_Range_t *tmsrp_header_Byte_Range_parse(const char *data, size_t size)
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{
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int cs = 0;
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const char *p = data;
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const char *pe = p + size;
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const char *eof = pe;
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tmsrp_header_Byte_Range_t *hdr_Byte_Range = TMSRP_HEADER_BYTE_RANGE_CREATE_NULL();
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const char *tag_start;
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%%write data;
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%%write init;
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%%write exec;
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if( cs < %%{ write first_final; }%% ){
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TSK_DEBUG_ERROR("Failed to parse 'Byte-Range' header.");
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TSK_OBJECT_SAFE_FREE(hdr_Byte_Range);
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}
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return hdr_Byte_Range;
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}
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//========================================================
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// Byte_Range header object definition
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//
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static void* tmsrp_header_Byte_Range_create(void *self, va_list * app)
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{
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tmsrp_header_Byte_Range_t *Byte_Range = self;
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if(Byte_Range)
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{
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TMSRP_HEADER(Byte_Range)->type = tmsrp_htype_Byte_Range;
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TMSRP_HEADER(Byte_Range)->tostring = tmsrp_header_Byte_Range_tostring;
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Byte_Range->start = va_arg(*app, int64_t);
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Byte_Range->end = va_arg(*app, int64_t);
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Byte_Range->total = va_arg(*app, int64_t);
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new Byte-Range header.");
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}
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return self;
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}
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static void* tmsrp_header_Byte_Range_destroy(void *self)
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{
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tmsrp_header_Byte_Range_t *Byte_Range = self;
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if(Byte_Range){
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}
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else{
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TSK_DEBUG_ERROR("Null Byte-Range header.");
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}
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return self;
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}
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static int tmsrp_header_Byte_Range_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
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{
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return -1;
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}
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static const tsk_object_def_t tmsrp_header_Byte_Range_def_s =
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{
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sizeof(tmsrp_header_Byte_Range_t),
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tmsrp_header_Byte_Range_create,
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tmsrp_header_Byte_Range_destroy,
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tmsrp_header_Byte_Range_cmp
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};
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const void *tmsrp_header_Byte_Range_def_t = &tmsrp_header_Byte_Range_def_s;
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