heredoc_signals.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   heredoc_signals.c                                  :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: baelgadi <baelgadi@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/12/12 22:35:52 by baelgadi          #+#    #+#             */
/*   Updated: 2026/03/04 04:54:14 by baelgadi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include <fcntl.h>
#include "signals.h"
#include "libft.h"
 
void    heredoc_sigint_handler(int sig)
{
    g_signal = sig;
    ft_putchar_fd('\n', STDOUT_FILENO);
    close(STDIN_FILENO);
}
 
void    setup_heredoc_signals(void)
{
    struct sigaction    sa_int;
    struct sigaction    sa_quit;
 
    ft_memset(&sa_int, 0, sizeof(sa_int));
    sa_int.sa_handler = heredoc_sigint_handler;
    sigemptyset(&sa_int.sa_mask);
    sa_int.sa_flags = 0;
    sigaction(SIGINT, &sa_int, NULL);
    ft_memset(&sa_quit, 0, sizeof(sa_quit));
    sa_quit.sa_handler = SIG_IGN;
    sigemptyset(&sa_quit.sa_mask);
    sa_quit.sa_flags = 0;
    sigaction(SIGQUIT, &sa_quit, NULL);
}
 
void    restore_stdin(void)
{
    int tty_fd;
 
    tty_fd = open("/dev/tty", O_RDONLY);
    if (tty_fd != -1 && tty_fd != STDIN_FILENO)
    {
        dup2(tty_fd, STDIN_FILENO);
        close(tty_fd);
    }
}