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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* handle_redir.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: chuhlig <chuhlig@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/01/18 18:34:51 by chuhlig #+# #+# */
/* Updated: 2025/01/20 14:59:38 by chuhlig ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
int handle_input_redirection(t_redirection *redir)
{
int fd;
if (redir->type == INPUT_FILE)
{
fd = open_file(redir->specifier, O_RDONLY, 0);
if (fd < 0)
return (-1);
dup2(fd, STDIN_FILENO);
close(fd);
}
else if (redir->type == INPUT_LIMITER)
{
fd = open_file("/tmp/heredoc_tmp", O_WRONLY | O_TRUNC, 0644);
if (fd < 0)
return (-1);
write(fd, redir->specifier, ft_strlen(redir->specifier));
close(fd);
fd = open_file("/tmp/heredoc_tmp", O_RDONLY, 0);
if (fd < 0)
return (-1);
dup2(fd, STDIN_FILENO);
close(fd);
}
return (0);
}
int handle_output_redirection(t_redirection *redir)
{
int fd;
if (redir->type == OUTPUT_OVERRIDE)
{
fd = open_file(redir->specifier, O_WRONLY | O_TRUNC, 0644);
if (fd < 0)
return (-1);
dup2(fd, STDOUT_FILENO);
close(fd);
}
else if (redir->type == OUTPUT_APPEND)
{
fd = open_file(redir->specifier, O_WRONLY | O_APPEND, 0644);
if (fd < 0)
return (-1);
dup2(fd, STDOUT_FILENO);
close(fd);
}
return (0);
}
int handle_redirections(t_redirection *redirs)
{
if (redirs[0].type == INPUT_FILE || redirs[0].type == INPUT_LIMITER)
{
if (handle_input_redirection(&redirs[0]) < 0)
return (-1);
}
if (redirs[1].type == OUTPUT_OVERRIDE || redirs[1].type == OUTPUT_APPEND)
{
if (handle_output_redirection(&redirs[1]) < 0)
return (-1);
}
return (0);
}
int handle_pipe_parent(int p[2], t_node *node, t_env **env)
{
int original_stdin;
int result;
close(p[1]);
original_stdin = dup(STDIN_FILENO);
dup2(p[0], STDIN_FILENO);
result = eval_rec(node->content.pipe.right, env, p[0]);
dup2(original_stdin, STDIN_FILENO);
close(original_stdin);
close(p[0]);
return (result);
}
int handle_pipe_child(int p[2], t_node *node, t_env **env, int in_fd)
{
close(p[0]);
dup2(in_fd, STDIN_FILENO);
dup2(p[1], STDOUT_FILENO);
close(p[1]);
exit(eval_rec(node->content.pipe.left, env, in_fd));
}
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