ft_strlcat.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: edboutil <edboutil@student.42lyon.fr>      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/12 09:53:40 by edboutil          #+#    #+#             */
/*   Updated: 2022/11/17 20:13:37 by edboutil         ###   ########lyon.fr   */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strncat(char *dest, const char *src, size_t nb)
{
	int				i;
	unsigned int	j;

	i = 0;
	j = 0;
	while (dest[i])
	{
		i++;
	}
	while (src[j] && j < nb)
	{
		dest[i] = src[j];
		i++;
		j++;
	}
	dest[i] = '\0';
	return (dest);
}

size_t	ft_strlcat(char *dest, const char *src, size_t dstsize)
{
	unsigned int	dest_size;
	unsigned int	src_size;

	dest_size = ft_strlen(dest);
	src_size = ft_strlen(src);
	if (dstsize <= dest_size)
	{
		return (dstsize + src_size);
	}
	else if (dstsize <= dest_size + src_size)
	{
		ft_strncat(dest, src, dstsize - dest_size - 1);
		return (dest_size + src_size);
	}
	else
	{
		ft_strncat(dest, src, src_size);
		return (dest_size + src_size);
	}
}