42_minishell/infile.c

#include "minishell.h"

static int	ft_get_infile(char *line)
{
	size_t	i;
	char	*path;

	path = NULL;
	i = 0;
	while (line[i] != '\0')
	{
		if (line[i] == '<' && ft_is_in_quote(line, i) == 0)
		{
			if (path != NULL)
				free(path);
			path = ft_get_file_path(line + i);
			if (path == NULL || ft_file_is_readable(path) == 0)
			{
				free(path);
				return (-1);
			}
		}
		i++;
	}
	if (path == NULL)
		return (-2);
	i = open(path, O_RDONLY);
	free(path);
	return (i);
}

static int	ft_remove_infile(char *line)
{
	size_t	i;
	int		separator;

	i = 0;
	while (line[i] != '\0')
	{
		if (line[i] == '<' && ft_is_in_quote(line, i) == 0)
		{
			line[i++] = ' ';
			while (line[i] == ' ')
				i++;
			separator = ft_is_in_quote(line, i);
			if (separator == 0)
				separator = ' ';
			else if (separator == 1)
				separator = '\'';
			else
				separator = '\"';
			while (line[i] != separator && line[i] != '\0')
				line[i++] = ' ';
			if (line[i] != '\0'
				&& (separator == '\'' || separator == '\"'))
				line[i++] = ' ';
		}
		i++;
	}
	return (0);
}

int	ft_infile(char *line)
{
	int	fd;

	fd = ft_get_infile(line);
	if (ft_remove_infile(line))
	{
		if (fd > 0)
			close(fd);
		return (-1);
	}
	return (fd);
}