Added libft

1 files changed, 112 insertions, 0 deletions

diff --git a/libft/src/get_next_line.c b/libft/src/get_next_line.c
new file mode 100644
index 0000000..e50e5fd
--- /dev/null
+++ b/libft/src/get_next_line.c
@@ -0,0 +1,112 @@
+/* ************************************************************************** */
+/*                                                          LE - /            */
+/*                                                              /             */
+/*   get_next_line.c                                  .::    .:/ .      .::   */
+/*                                                 +:+:+   +:    +:  +:+:+    */
+/*   By: rbousset <marvin@le-101.fr>                +:+   +:    +:    +:+     */
+/*                                                 #+#   #+    #+    #+#      */
+/*   Created: 2019/10/29 00:37:39 by rbousset     #+#   ##    ##    #+#       */
+/*   Updated: 2019/10/29 00:37:41 by rbousset    ###    #+. /#+    ###.fr     */
+/*                                                         /                  */
+/*                                                        /                   */
+/* ************************************************************************** */
+
+#include <libft.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+static uint8_t
+	ft_linecheck(const char *str)
+{
+	size_t	i;
+
+	i = 0;
+	while (str && str[i])
+	{
+		if (str[i] == '\n')
+			return (1);
+		i++;
+	}
+	return (0);
+}
+
+static size_t
+	ft_linelen(const char *str)
+{
+	size_t	i;
+
+	i = 0;
+	while (str[i] != '\n' && str[i] != '\0')
+		i++;
+	return (i);
+}
+
+static int
+	ft_linedup(int fd, char **str)
+{
+	char	*buff;
+	char	*tmp;
+	int		ret;
+
+	if (!(buff = (char *)malloc((BUFFER_SIZE + 1) * sizeof(char))))
+		return (0);
+	ret = 1;
+	while (!ft_linecheck(*str) && (ret = read(fd, buff, BUFFER_SIZE)) > 0)
+	{
+		buff[ret] = '\0';
+		tmp = *str;
+		*str = ft_strjoin(tmp, buff);
+		free(tmp);
+	}
+	if (ret < 0)
+	{
+		free(*str);
+		free(buff);
+		return (-1);
+	}
+	free(buff);
+	return (ret);
+}
+
+static int
+	ft_errchck(int fd, char **line, char **str)
+{
+	if (*str == NULL)
+		*str = ft_nstr(0);
+	if (fd < 0 || !line || BUFFER_SIZE <= 0)
+	{
+		free(*str);
+		return (-1);
+	}
+	return (0);
+}
+
+int
+	get_next_line(int fd, char **line)
+{
+	static char *str;
+	char		*tmp;
+	size_t		i;
+	int			ret;
+
+	if (ft_errchck(fd, line, &str) == -1)
+		return (-1);
+	ret = ft_linedup(fd, &str);
+	if (ret < 0)
+		return (-1);
+	i = ft_linelen(str);
+	*line = ft_substr(str, 0, i);
+	tmp = str;
+	if (tmp[0] != '\0' && tmp)
+		str = ft_strdup(tmp + i + (tmp[i] == '\n'));
+	if (ret == 0 && ((str == NULL || str[0] == '\0') || !ft_linecheck(str)))
+	{
+		i = tmp[i];
+		free(tmp);
+		tmp = NULL;
+		return (i == '\n');
+	}
+	free(tmp);
+	return (1);
+}