From 36b693a56d4f0d2841d7323ca7ae8df900c611dc Mon Sep 17 00:00:00 2001
From: Christopher Uhlig <chuhlig@1-D-6.42heilbronn.de>
Date: Fri, 25 Oct 2024 21:00:39 +0200
Subject: [PATCH] restored merge conflict error" "

---
 src/execute_cmd.c | 21 +++++++++--
 src/interpreter.c | 90 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 109 insertions(+), 2 deletions(-)

diff --git a/src/execute_cmd.c b/src/execute_cmd.c
index fa7677f..6386fc0 100644
--- a/src/execute_cmd.c
+++ b/src/execute_cmd.c
@@ -3,10 +3,10 @@
 /*                                                        :::      ::::::::   */
 /*   execute_cmd.c                                      :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/10/21 13:58:56 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/10/25 13:31:16 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/10/25 20:59:22 by chuhlig          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -57,3 +57,20 @@ int	execute_cmd(t_cmd *cmd, t_env *env)
 	result = execve(cmd->args[0], cmd->args, env_to_strlst(env));
 	return (result);
 }
+
+static int	eval_cmd(t_cmd *cmd, t_env **env)
+{
+	if (ft_strncmp(cmd->args[0], "pwd", 4) == 0)
+		pwd(*env);
+	else if (ft_strncmp(cmd->args[0], "echo", 5) == 0)
+		echo(cmd->args);
+	else if (ft_strncmp(cmd->args[0], "env", 4) == 0)
+		ft_env(*env);
+	else if (ft_strncmp(cmd->args[0], "cd", 3) == 0)
+		cd(env, cmd->args);
+	else if (ft_strncmp(cmd->args[0], "unset", 6) == 0)
+		unset(cmd->args, env);
+	else if (ft_strncmp(cmd->args[0], "export", 7) == 0)
+		export(cmd->args, env);
+	return (0);
+}
\ No newline at end of file
diff --git a/src/interpreter.c b/src/interpreter.c
index e69de29..c6a4a00 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -0,0 +1,90 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   interpreter.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/08/05 13:15:24 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/10/25 20:59:16 by chuhlig          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "debug_tools.h"
+#include "minishell.h"
+#include <stdlib.h>
+#include <sys/_types/_pid_t.h>
+#include <sys/cdefs.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static int	eval_rec(t_node *node, t_env *env, int in_fd);
+
+int	eval(t_node *node, t_env *env)
+{
+	pid_t	pid;
+	int		result;
+
+	if (node == NULL)
+		return (EXIT_FAILURE);
+	result = 0;
+	pid = fork();
+	if (pid < 0)
+	{
+		return (EXIT_FAILURE);
+	}
+	if (pid == 0)
+	{
+		result = eval_rec(node, env, STDIN_FILENO);
+		exit(result);
+	}
+	else
+	{
+		waitpid(pid, &result, 0);
+	}
+	return (result);
+}
+
+static int	eval_rec(t_node *node, t_env *env, int in_fd)
+{
+	pid_t	pid;
+	int		result;
+	int		p[2];
+
+	result = pipe(p);
+	if (result == -1)
+		return (EXIT_FAILURE);
+	if (node->type == PIPE_NODE)
+	{
+		pid = fork();
+		if (pid < 0)
+		{
+			return (EXIT_FAILURE);
+		}
+		if (pid == 0)
+		{
+			close(p[0]);
+			dup2(in_fd, STDIN_FILENO);
+			dup2(p[1], STDOUT_FILENO);
+			result = execute_cmd(&node->content.pipe.left->content.cmd, env);
+			exit(result);
+		}
+		else
+		{
+			close(p[1]);
+			dup2(p[0], STDIN_FILENO);
+			result = eval_rec(node->content.pipe.right, env, p[0]);
+		}
+	}
+	else if (node->type == CMD_NODE)
+	{
+		result = execute_cmd(&node->content.cmd, env);
+	}
+	else
+	{
+		panic(UNREACHABLE);
+		return (EXIT_FAILURE);
+	}
+	return (result);
+}
+
-- 
2.47.2