ft_strjoin.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strjoin.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tspoof <tspoof@student.hive.fi>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/11/03 17:39:07 by tspoof            #+#    #+#             */
/*   Updated: 2022/11/21 16:56:06 by tspoof           ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "libft.h"
 
char    *ft_strjoin(char const *s1, char const *s2)
{
    char    *str;
    size_t  s1_len;
    size_t  s2_len;
 
    if (!s1 || !s2)
        return (NULL);
    s1_len = ft_strlen((char *)s1);
    s2_len = ft_strlen((char *)s2);
    str = (char *)malloc(sizeof(char) * (s1_len + s2_len + 1));
    if (!str)
        return (NULL);
    ft_strlcpy(str, s1, s1_len + 1);
    ft_strlcpy(str + s1_len, s2, s2_len + 1);
    str[s1_len + s2_len] = '\0';
    return (str);
}