ft_strlcat.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: adiaz-lo <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/01/13 09:11:21 by adiaz-lo          #+#    #+#             */
/*   Updated: 2020/01/13 12:57:09 by adiaz-lo         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

/*
** This function concatenates 2 strings received by parameter, adding 'src' to
** 'dst', limiting the result string size.
** 'dst' must have enough slots for the elements of 'src'.
** The return value is the length of the generated string.
** For further information, please check the Standard C Library
** strlcat(char *dst, const char *src, size_t size)
*/

#include "libft.h"

size_t	ft_strlcat(char *dst, const char *src, size_t size)
{
	int		i;
	int		j;
	size_t	length;

	length = ft_strlen(dst);
	if (size > 0 && size > length)
	{
		i = length;
		j = 0;
		while (src[j] && i < (int)size - 1)
		{
			dst[i] = src[j];
			i++;
			j++;
		}
		dst[i] = '\0';
		return (length + ft_strlen(src));
	}
	return (size + ft_strlen(src));
}