/*
 * Copyright (c) 2004 - 2022 Marcus Glocker <marcus@nazgul.ch>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <ctype.h>
#include <stdlib.h>
#include <string.h>

/* strlower()
 *	lowers a string
 * Return:
 *	pointer to lowered string = success, NULL = failed
 *
 */

char *
strlower(const char *string)
{
	int	i;
	char	*s, *c;

	if ((s = malloc(strlen(string) + 1)) == NULL)
		return NULL;
	c = s;

	for (i = 0; string[i] != '\0' && string[i] != '\r'; i++, s++)
		*s = tolower((int)string[i]);

	*s = '\0';

	return c;
}
