42_minishell/redirection/check.c
2023-04-04 13:56:21 +02:00

103 lines
2.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* check.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cchauvet <cchauvet@student.42angouleme.fr +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/03/29 17:32:06 by cchauvet #+# #+# */
/* Updated: 2023/04/04 13:40:29 by alouis-j ### ########.fr */
/* */
/* ************************************************************************** */
#include "./redirection_private.h"
static bool ft_check_heredoc(t_data *data, t_cmd *cmd,
char *redirection_identifier, char *redirection)
{
if (ft_strcmp(redirection_identifier, "<<") == 0)
{
cmd->fd_in[0] = ft_heredoc(data, redirection);
if (cmd->fd_in[0] == -2)
return (1);
}
return (0);
}
static bool ft_check_infile(t_data *data, t_cmd *cmd,
char *redirection_identifier, char *redirection)
{
if (ft_strcmp(redirection_identifier, "<") == 0)
{
if (ft_file_is_readable(data, redirection))
cmd->fd_in[0] = open(redirection, O_RDONLY);
else
{
cmd->fd_in[0] = -2;
return (1);
}
}
return (0);
}
static bool ft_check_outfile(t_data *data, t_cmd *cmd,
char *redirection_identifier, char *redirection)
{
if (ft_strcmp(redirection_identifier, ">") == 0)
{
if (ft_file_is_writable(data, redirection))
cmd->fd_out[0] = open(redirection,
O_WRONLY | O_TRUNC | O_CREAT, 0644);
else
{
cmd->fd_out[0] = -2;
return (1);
}
}
return (0);
}
static bool ft_check_outfile_append(t_data *data, t_cmd *cmd,
char *redirection_identifier, char *redirection)
{
if (ft_strcmp(redirection_identifier, ">>") == 0)
{
if (ft_file_is_writable(data, redirection))
cmd->fd_out[0] = open(redirection,
O_WRONLY | O_APPEND | O_CREAT, 0644);
else
{
cmd->fd_out[0] = -2;
return (1);
}
}
return (0);
}
bool ft_check_redirection(t_data *data, t_cmd *cmd,
char *redirection_identifier, char *redirection)
{
char *str;
bool return_code;
if (ft_is_in("<>", redirection[0]))
{
ft_eprintf("minishell: %s: invalid redirection file\n", redirection);
return (1);
}
str = ft_strdup(redirection);
if (str == NULL)
{
ft_eprintf("minishell: malloc failed\n");
return (1);
}
ft_quote_remover(str);
return_code = (ft_check_heredoc(data, cmd, redirection_identifier, str)
|| ft_check_infile(data, cmd, redirection_identifier, str)
|| ft_check_outfile(data, cmd, redirection_identifier, str)
|| ft_check_outfile_append(data, cmd, redirection_identifier,
str));
free(str);
return (return_code);
}