42_minishell/file.c

#include "minishell.h"

int	ft_file_is_readable(char *path)
{
	int	readable;
	int	fd;

	fd = open(path, O_RDONLY);
	if (fd == -1)
	{
		ft_eprintf("minishell: %s: No such file or directory\n", path);
		return (0);
	}
	readable = read(fd, "", 0);
	if (readable == -1)
	{
		ft_eprintf("minishell: %s: Permission denied\n", path);
		return (0);
	}
	close(fd);
	return (1);
}

int	ft_file_is_writeable(char *path)
{
	int	writeable;
	int	fd;

	fd = open(path, O_WRONLY | O_CREAT, 0644);
	if (fd == -1)
	{
		ft_eprintf("minishell: %s: Permission denied\n", path);
		return (0);
	}
	writeable = write(fd, "", 0);
	if (writeable == -1)
	{
		ft_eprintf("minishell: %s: Permission denied\n", path);
		return (0);
	}
	close(fd);
	return (1);
}

char	*ft_get_file_path(char *infile)
{
	size_t	i;

	i = 1;
	while (infile[i] == ' ')
		i++;
	if (infile[i] == '\0')
	{
		ft_eprintf("minishell: syntax error near ");
		ft_eprintf("unexpected token `newline'\n");
		return (NULL);
	}
	return (ft_getstr(infile, i + 1));
}