ft_strlcat.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: aerrajiy <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/10/12 01:43:39 by aerrajiy          #+#    #+#             */
/*   Updated: 2022/10/16 17:50:51 by aerrajiy         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

size_t	ft_strlcat(char *dst, const char *src, size_t dstsize)
{
	unsigned int	i;
	unsigned int	j;
	unsigned int	d;
	unsigned int	s;

	i = 0;
	j = 0;
	s = ft_strlen(src);
	if (!dst && dstsize == 0)
		return (s);
	while (dst[j])
		j++;
	d = j;
	if (dstsize == 0 || dstsize <= d)
		return (s + dstsize);
	while (src[i] != '\0' && i < dstsize - d - 1)
	{
		dst[j] = src[i];
		i++;
		j++;
	}
	dst[j] = '\0';
	return (d + s);
}