doubango/tinySDP/src/headers/tsdp_header.c
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 #if HAVE_CRT
 #define _CRTDBG_MAP_ALLOC 
 #include <stdlib.h> 
 #include <crtdbg.h>
 #endif //HAVE_CRT
 /*
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 * Copyright (C) 2020, University of the Basque Country (UPV/EHU)
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 * Contact for licensing options: <licensing-mcpttclient(at)mcopenplatform(dot)com>
 *
 * The original file was part of Open Source Doubango Framework
 * Copyright (C) 2010-2011 Mamadou Diop.
 * Copyright (C) 2012 Doubango Telecom <http://doubango.org>
 *
 * 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 tsdp_header.c
  * @brief Defines a SDP header/line (<type>=<value>).
  *
  * @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
  *
 
  */
 #include "tinysdp/headers/tsdp_header.h"
 
 #include "tinysdp/headers/tsdp_header_Dummy.h"
 
 #include "tsk_string.h"
 
 int tsdp_header_rank_cmp(const tsdp_header_t* hdr1, const tsdp_header_t* hdr2)
 {
 	if(hdr1 && hdr2){
 		return (hdr1->rank - hdr2->rank);
 	}
 	else{
 		return -1;
 	}
 }
 
 tsdp_header_t* tsdp_header_clone(const tsdp_header_t* self)
 {
 	if(self){
 		return self->clone(self);
 	}
 	return tsk_null;
 }
 
 /** Gets the name of the SDP header with a type equal to @a type. 
  * @param	type	The @a type of the header for which to retrieve the name. 
  *
  * @return	The name of the header.
 **/
 char tsdp_header_get_name(tsdp_header_type_t type)
 {
 	switch(type)
 	{
 		case tsdp_htype_A: return 'a';			
 		case tsdp_htype_B: return 'b';
 		case tsdp_htype_C: return 'c';
 		case tsdp_htype_E: return 'e';
 		case tsdp_htype_I: return 'i';
 		case tsdp_htype_K: return 'k';
 		case tsdp_htype_M: return 'm';
 		case tsdp_htype_O: return 'o';
 		case tsdp_htype_P: return 'p';
 		case tsdp_htype_R: return 'r';
 		case tsdp_htype_S: return 's';
 		case tsdp_htype_T: return 't';
 		case tsdp_htype_U: return 'u';
 		case tsdp_htype_V: return 'v';
 		case tsdp_htype_Z: return 'z';
 
 		default: return '*';
 	}
 }
 
 char tsdp_header_get_nameex(const tsdp_header_t *self)
 {
 	if(self){
 		if(self->type == tsdp_htype_Dummy){
 			return ((tsdp_header_Dummy_t*)(self))->name;
 		}
 		else{
 			return tsdp_header_get_name(self->type);
 		}
 	}
 	return '*';
 }
 
 
 int tsdp_header_serialize(const tsdp_header_t *self, tsk_buffer_t *output)
 {
 	static char name;
 	int ret = -1;
 	if(!self || !output){
 		return -1;
 	}
 
 	/* Name */
 	name = tsdp_header_get_nameex(self);
 	tsk_buffer_append_2(output, "%c=", name);
 
 	/* Value */
 	if((ret = self->tostring(self, output))){
 		// Abort?
 	}
 
 	/* CRLF*/
 	if(output->size>2){
 		if(*(TSK_BUFFER_TO_U8(output)+TSK_BUFFER_SIZE(output)-2) != '\r' 
 			&& *(TSK_BUFFER_TO_U8(output)+TSK_BUFFER_SIZE(output)-1) != '\n'){
 			ret = tsk_buffer_append(output, "\r\n", 2);
 		}
 	}
 	else{
 		ret = tsk_buffer_append(output, "\r\n", 2);
 	}
 
 	return ret;
 }
 
 char* tsdp_header_tostring(const tsdp_header_t *self)
 {
 	tsk_buffer_t* output = tsk_buffer_create_null();
 	char* str = tsk_null;
 
 	if(!(tsdp_header_serialize(self, output))){
 		str = tsk_strndup(TSK_BUFFER_DATA(output), TSK_BUFFER_SIZE(output));
 	}
 	
 	TSK_OBJECT_SAFE_FREE(output);
 	return str;
 }