exec3.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   exec3.c                                            :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: adel-cor <adel-cor@student.42urduli>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/04/05 12:26:44 by adel-cor          #+#    #+#             */
/*   Updated: 2022/04/12 12:14:36 by adel-cor         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

int	make_heredocs(t_job *job, t_cdata *c_data)
{
	while (job)
	{
		if (check_heredoc(job->file, job->fd[0], job, c_data) == 1)
			return (1);
		job = job->next;
	}
	return (0);
}

int	check_heredoc(char **redir, int stdin_fd, t_job *job, t_cdata *c_data)
{
	int	i;

	i = 0;
	while (redir && redir[i])
	{
		if (ft_strcmp(redir[i], "<<") == 0)
		{
			if (redir_heredoc(redir[i + 1], stdin_fd, job, c_data) == 1)
				return (1);
		}
		i++;
	}
	return (0);
}

int	redir_heredoc(char *limiter, int fd, t_job *job, t_cdata *c_data)
{
	int		new_fd[2];
	pid_t	pid;
	int		wstatus;

	pipe(new_fd);
	pid = fork();
	if (pid == 0)
	{
		ft_shortcut_events_here_docs();
		heredoc(limiter, new_fd, job, c_data);
	}
	else
		ft_ignore_all_signals();
	waitpid(pid, &wstatus, 0);
	if (WIFEXITED(wstatus))
		g_ex_status = WEXITSTATUS(wstatus);
	dup2(new_fd[0], fd);
	close(new_fd[1]);
	close(new_fd[0]);
	if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 130)
		return (1);
	return (0);
}

void	heredoc(char *limiter, int *fd, t_job *job, t_cdata *c_data)
{
	char	*line;

	line = readline("> ");
	while (line)
	{
		if (ft_strcmp(line, limiter) == 0)
		{
			close(fd[0]);
			close(fd[1]);
			break ;
		}
		if (ft_find_dollar(line) && !ft_delim_is_quoted(c_data))
			line = ft_add_variable_value(line, c_data);
		ft_putendl_fdnl(line, fd[1]);
		free(line);
		line = readline("> ");
	}
	free(line);
	free_ex(job, c_data);
	exit(EXIT_SUCCESS);
}

int	ft_delim_is_quoted(t_cdata *c_data)
{
	struct s_tnode	*curr;

	curr = c_data->tokens_list;
	while (1)
	{
		if (!strcmp(curr->str, "<<"))
		{
			if (curr->next->q_type == '\0')
				return (0);
			return (1);
		}
		if (curr->next == NULL)
			break ;
		curr = curr->next;
	}
	return (0);
}