File: strndup.c

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/*
Copyright (c) 2002 Jeff Johnston <jjohnstn@redhat.com>
 */

#define _DEFAULT_SOURCE
#include <stdlib.h>
#include <string.h>

char *
strndup(const char *str, size_t n)
{
    const char *ptr = str;
    size_t      len;
    char       *copy;

    while (n-- > 0 && *ptr)
        ptr++;

    len = ptr - str;

    copy = malloc(len + 1);
    if (copy) {
        memcpy(copy, str, len);
        copy[len] = '\0';
    }
    return copy;
}