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 * Copyright (c) 2000-2003 Intel Corporation
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * - Neither name of Intel Corporation nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR
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/************************************************************************
 * Purpose: This file contains string to integer and integer to string
 *	conversion functions
 ************************************************************************/

#include "strintmap.h"
#include "config.h"
#include "membuffer.h"

/************************************************************************
 *	Function :	map_str_to_int
 *
 *	Parameters :
 *		IN const char* name ;	string containing the name to be matched
 *		IN size_t name_len ;	size of the string to be matched
 *		IN str_int_entry* table ;	table of entries that need to be
 *					matched.
 *		IN int num_entries ; number of entries in the table that need
 *					to be searched.
 *		IN int case_sensitive ; whether the case should be case
 *					sensitive or not
 *
 *	Description : Match the given name with names from the entries in the
 *		table. Returns the index of the table when the entry is found.
 *
 *	Return : int ;
 *		index - On Success
 *		-1 - On failure
 *
 *	Note :
 ************************************************************************/
int map_str_to_int(const char *name,
	size_t name_len,
	str_int_entry *table,
	int num_entries,
	int case_sensitive)
{
	int top, mid, bot;
	int cmp;
	memptr name_ptr;

	name_ptr.buf = (char *)name;
	name_ptr.length = name_len;

	top = 0;
	bot = num_entries - 1;

	while (top <= bot) {
		mid = (top + bot) / 2;
		if (case_sensitive) {
			/*cmp = strcmp( name, table[mid].name ); */
			cmp = memptr_cmp(&name_ptr, table[mid].name);
		} else {
			/*cmp = strcasecmp( name, table[mid].name ); */
			cmp = memptr_cmp_nocase(&name_ptr, table[mid].name);
		}

		if (cmp > 0) {
			top = mid + 1; /* look below mid */
		} else if (cmp < 0) {
			bot = mid - 1; /* look above mid */
		} else		       /* cmp == 0 */
		{
			return mid; /* match; return table index */
		}
	}

	return -1; /* header name not found */
}

/************************************************************************
 *	Function :	map_int_to_str
 *
 *	Parameters :
 *		IN int id ;	ID to be matched
 *		IN str_int_entry* table ;	table of entries that need to be
 *					matched.
 *		IN int num_entries ; number of entries in the table that need
 *					to be searched.
 *
 *	Description : Returns the index from the table where the id matches
 *		the entry from the table.
 *
 *	Return : int ;
 *
 *	Note :
 ************************************************************************/
int map_int_to_str(int id, str_int_entry *table, int num_entries)
{
	int i;

	for (i = 0; i < num_entries; i++) {
		if (table[i].id == id) {
			return i;
		}
	}
	return -1;
}
