42_minishell/redirection/file.c
2023-03-30 13:27:23 +02:00

83 lines
2.2 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* file.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cchauvet <cchauvet@student.42angoulem +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/02/15 17:36:11 by cchauvet #+# #+# */
/* Updated: 2023/03/30 13:26:31 by cchauvet ### ########.fr */
/* */
/* ************************************************************************** */
#include "./redirection_private.h"
int ft_file_is_readable(t_data *data, const char *path)
{
int readable;
int fd;
fd = open(path, O_RDONLY);
if (fd == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: No such file or directory\n", path);
return (0);
}
readable = read(fd, "", 0);
if (readable == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: Permission denied\n", path);
return (0);
}
close(fd);
return (1);
}
int ft_file_is_writable(t_data *data, const char *path)
{
int writeable;
int fd;
fd = open(path, O_WRONLY | O_TRUNC | O_CREAT, 0644);
if (fd == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: Permission denied\n", path);
return (0);
}
writeable = write(fd, "", 0);
if (writeable == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: Permission denied\n", path);
return (0);
}
close(fd);
return (1);
}
int ft_file_is_appendable(t_data *data, const char *path)
{
int writeable;
int fd;
fd = open(path, O_WRONLY | O_APPEND | O_CREAT, 0644);
if (fd == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: Permission denied\n", path);
return (0);
}
writeable = write(fd, "", 0);
if (writeable == -1)
{
data->exit_code = 1;
ft_eprintf("minishell: %s: Permission denied\n", path);
return (0);
}
close(fd);
return (1);
}