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yabtaour
GitHub Repository: yabtaour/Minishell-42
 Path: blob/main/execution/execution.c
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/* ************************************************************************** */

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/*                                                                            */

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/*                                                        :::      ::::::::   */

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/*   execution.c                                        :+:      :+:    :+:   */

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/*                                                    +:+ +:+         +:+     */

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/*   By: ssabbaji <[email protected]>          +#+  +:+       +#+        */

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/*                                                +#+#+#+#+#+   +#+           */

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/*   Created: 2022/09/03 18:53:10 by ssabbaji          #+#    #+#             */

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/*   Updated: 2022/10/07 13:18:48 by ssabbaji         ###   ########.fr       */

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/*                                                                            */

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/* ************************************************************************** */

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#include "../minishell.h"

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int	dup_and_close(t_data *data, t_cmd *cmd)

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{

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	dup2(cmd->fd_in, 0);

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	dup2(cmd->fd_out, 1);

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	if (cmd->fd_in != 0)

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		close(cmd->fd_in);

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	if (cmd->fd_out != 1)

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		close(cmd->fd_out);

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	close_fds(cmd);

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	close_pipes(data->pipes, data->general.count);

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	g_vars.g_exit_stat = check_builtins(data, cmd);

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	if (g_vars.g_exit_stat == NO_BUILT)

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		g_vars.g_exit_stat = execution_2(data, cmd);

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	return (g_vars.g_exit_stat);

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}

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int	execution(t_data *data, t_cmd *cmd)

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{

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	int		pid;

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	int		fork_c;

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	fork_c = 0;

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	pid = 1;

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	while (cmd)

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	{

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		g_vars.g_exit_stat = check_nonfork(data, cmd);

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		if (g_vars.g_heredoc == 0)

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			return (HEREDOC_EXE);

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		fork_c += check_fork(&pid, data);

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		signal(SIGINT, SIG_IGN);

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		if (pid == 0 && cmd->fd_in != -69)

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		{

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			signal(SIGINT, SIG_DFL);

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			g_vars.g_where_ami = 0;

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			g_vars.g_exit_stat = dup_and_close(data, cmd);

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			exit(g_vars.g_exit_stat);

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		}

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		cmd = cmd->next;

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	}

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	close_all(cmd, data->pipes, data->general.count);

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	if (fork_c)

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		g_vars.g_exit_stat = terminate_pid(pid);

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	return (g_vars.g_exit_stat);

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}

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int	pre_execution(t_data *data)

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{

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	t_cmd	*cmd;

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	int		pid;

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	pid = 0;

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	data->general.count = c_lstcmd(data);

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	if (data->lst_cmd)

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	{

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		cmd = data->lst_cmd;

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		data->pipes = initialize_pipes(data);

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		if (execution(data, cmd) == HEREDOC_EXE)

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			g_vars.g_exit_stat = 1;

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	}

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	return (0);

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}

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