lib/libc/string/strdup.c

/*
** Copyright 2004, Travis Geiselbrecht. All rights reserved.
** Distributed under the terms of the NewOS License.
*/
/*
 * Copyright (c) 2008 Travis Geiselbrecht
 *
 * Use of this source code is governed by a MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT
 */
#include <stdlib.h>
#include <string.h>

char *
strdup(const char *str) {
    size_t len;
    char *copy;

    len = strlen(str) + 1;
    copy = malloc(len);
    if (copy == NULL)
        return NULL;
    memcpy(copy, str, len);
    return copy;
}