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/**
 * @file types.c
 * 
 * @brief Generic types.
 * 
 */

/*
 * Copyright (C) 2005 Jan Hutter, Martin Willi
 * Hochschule fuer Technik Rapperswil
 *
 * This program 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 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * This program 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.
 */

#include <string.h>

#include "types.h"


/**
 * String mappings for type status_t.
 */
mapping_t status_m[] = {
	{SUCCESS, "SUCCESS"},
	{FAILED, "FAILED"},
	{OUT_OF_RES, "OUT_OF_RES"},
	{ALREADY_DONE, "ALREADY_DONE"},
	{NOT_SUPPORTED, "NOT_SUPPORTED"},
	{INVALID_ARG, "INVALID_ARG"},
	{NOT_FOUND, "NOT_FOUND"},
	{PARSE_ERROR, "PARSE_ERROR"},
	{VERIFY_ERROR, "VERIFY_ERROR"},
	{INVALID_STATE, "INVALID_STATE"},
	{DELETE_ME, "DELETE_ME"},
	{CREATED, "CREATED"},
	{MAPPING_END, NULL}
};

/**
 * Empty chunk.
 */
chunk_t CHUNK_INITIALIZER = {NULL,0};

/**
 * Described in header.
 */
chunk_t chunk_clone(chunk_t chunk)
{
	chunk_t clone = CHUNK_INITIALIZER;
	
	if (chunk.ptr && chunk.len > 0)
	{
		clone.ptr = malloc(chunk.len);
		clone.len = chunk.len;
		memcpy(clone.ptr, chunk.ptr, chunk.len);
	}
	
	return clone;
}

/**
 * Described in header.
 */
void chunk_free(chunk_t *chunk)
{
	free(chunk->ptr);
	chunk->ptr = NULL;
	chunk->len = 0;
}

/**
 * Described in header.
 */
chunk_t chunk_alloc(size_t bytes)
{
	chunk_t new_chunk;
	new_chunk.ptr = malloc(bytes);
	new_chunk.len = bytes;
	return new_chunk;
}


/**
 * Described in header.
 */
void *clalloc(void * pointer, size_t size)
{
	
	void *data;
	data = malloc(size);
	
	memcpy(data, pointer,size);
	
	return (data);
}