1 files changed, 132 insertions, 0 deletions
diff --git a/bsq/helper.c b/bsq/helper.c
new file mode 100644
index 0000000..0b2e935
--- /dev/null
+++ b/bsq/helper.c
@@ -0,0 +1,132 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   helper.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <charles.cabergs@gmail.com>       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/07/19 15:19:53 by cacharle          #+#    #+#             */
+/*   Updated: 2019/07/24 17:59:52 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include "include.h"
+
+/*
+ ** Dynamic allocation of buffer
+*/
+
+char	*read_file(int fildes)
+{
+	char	*buf;
+	char	*file;
+	int		file_size;
+	int		read_size;
+	int		buf_size;
+
+	buf_size = INIT_BUF_SIZE;
+	file_size = 0;
+	file = NULL;
+	if ((buf = malloc(sizeof(char) * buf_size)) == NULL)
+		return (NULL);
+	while ((read_size = read(fildes, buf, buf_size)))
+	{
+		if (read_size < 0)
+			return (NULL);
+		if ((file = ft_memcat(file, buf, file_size, read_size)) == NULL)
+			return (NULL);
+		file_size += read_size;
+		buf_size *= GROWTH_FACTOR;
+		if ((buf = realloc_buf(buf, buf_size)) == NULL)
+			return (NULL);
+	}
+	free(buf);
+	return (file);
+}
+
+/*
+ ** Reallocate a bigger  memory space for file to write what in the buffer
+*/
+
+char	*ft_memcat(char *file, char *buf, int file_size,
+					int read_size)
+{
+	int		i;
+	char	*file_clone;
+
+	if ((file_clone = malloc(sizeof(char) * (file_size + 1))) == NULL)
+		return (NULL);
+	i = -1;
+	while (++i < file_size)
+		file_clone[i] = file[i];
+	free(file);
+	if ((file = malloc(sizeof(char) * (file_size + read_size + 1))) == NULL)
+		return (NULL);
+	i = 0;
+	while (i < file_size)
+	{
+		file[i] = file_clone[i];
+		i++;
+	}
+	free(file_clone);
+	while (i < file_size + read_size)
+	{
+		file[i] = buf[i - file_size];
+		i++;
+	}
+	file[i] = '\0';
+	return (file);
+}
+
+/*
+ ** Reallocate a new buffer and free the old one
+*/
+
+char	*realloc_buf(char *buf, int buf_size)
+{
+	free(buf);
+	if ((buf = (char*)malloc(sizeof(char) * buf_size)) == NULL)
+		return (NULL);
+	return (buf);
+}
+
+/*
+ ** Return the n number of a string and return it as an int
+*/
+
+int		ft_natoi(char *str, unsigned int n)
+{
+	int				nb;
+	unsigned int	i;
+
+	nb = 0;
+	i = 0;
+	while (str[i] && i < n)
+	{
+		if (str[i] < '0' || str[i] > '9')
+			return (-1);
+		i++;
+	}
+	if (i == 0)
+		return (-1);
+	i = 0;
+	while (str[i] && i < n)
+	{
+		nb *= 10;
+		nb += str[i++] - '0';
+	}
+	if (nb == 0)
+		return (-1);
+	return (nb);
+}
+
+/*
+ ** Print one character in the standard output
+*/
+
+void	ft_putchar(char c)
+{
+	write(STDOUT_FILENO, &c, 1);
+}