libft/ft_strlcat.c at master · Ludmuterol/libft · GitHub

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strlcat.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tpeters <tpeters@student.42heilbronn.de    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/03/26 15:17:37 by tpeters           #+#    #+#             */
/*   Updated: 2022/04/08 15:17:19 by tpeters          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

size_t	ft_strlcat(char *dst, const char *src, size_t size)
{
	unsigned int	dst_len;
	unsigned int	src_len;
	unsigned int	i;

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