get_next_line_utils_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils.c                              :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: alcierra <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/10/16 18:35:32 by alcierra          #+#    #+#             */
/*   Updated: 2021/10/17 12:25:35 by alcierra         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line.h"

size_t	ft_strlen(char *s)
{
	size_t	sz;

	sz = 0;
	while (s[sz])
		sz++;
	return (sz);
}

size_t	ft_strlcpy(char *dst, const char *src, size_t sz)
{
	size_t	i;

	i = 0;
	if (sz == 0)
		return (ft_strlen((char *) src));
	while (src[i])
	{
		if (i == sz - 1)
			break ;
		dst[i] = src[i];
		i++;
	}
	dst[i] = 0;
	return (ft_strlen((char *) src));
}

char	*ft_strjoin(char const *s1, char const *s2)
{
	char	*str;
	int		len1;
	int		len2;

	if (!s1 || !s2)
		return (NULL);
	len1 = ft_strlen((char *) s1);
	len2 = ft_strlen((char *) s2);
	str = (char *) malloc(sizeof(char) * (len1 + len2 + 1));
	if (str == NULL)
		return (NULL);
	ft_strlcpy(str, s1, len1 + 1);
	ft_strlcpy(str + len1, s2, len2 + 1);
	return (str);
}

char	*ft_strdup(const char *s1)
{
	char	*str;
	int		len;
	int		i;

	len = ft_strlen((char *) s1);
	str = (char *) malloc((len + 1) * sizeof(char));
	if (str == NULL)
	{
		return (str);
	}
	i = 0;
	while (i < len)
	{
		str[i] = s1[i];
		i++;
	}
	str[i] = 0;
	return (str);
}

char	*ft_strchr(const char *s, int c)
{
	int	i;

	i = 0;
	while (s[i] != c && s[i] != 0)
		i++;
	if (s[i] || c == 0)
		return ((char *)s + i);
	return (NULL);
}