Merge branch 'main' into echo-builtint

1 files changed, 68 insertions, 17 deletions

diff --git a/src/interpreter.c b/src/interpreter.c
index 2a09e6d..c6a4a00 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -3,37 +3,88 @@
 /*                                                        :::      ::::::::   */
 /*   interpreter.c                                      :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/08/05 13:15:24 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/08/05 13:33:16 by dkaiser          ###   ########.fr       */
+/*   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_pipe(t_pipe *pipe);
-static int	eval_cmd(t_cmd *cmd);
+static int	eval_rec(t_node *node, t_env *env, int in_fd);
 
-int	eval(t_node *node)
+int	eval(t_node *node, t_env *env)
 {
-	if (node->type == PIPE_NODE)
-		return (eval_pipe(&node->content.pipe));
-	else if (node->type == CMD_NODE)
-		return (eval_cmd(&node->content.cmd));
+	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
 	{
-		panic(UNREACHABLE);
-		return (-1);
+		waitpid(pid, &result, 0);
 	}
+	return (result);
 }
 
-static int	eval_pipe(t_pipe *pipe)
+static int	eval_rec(t_node *node, t_env *env, int in_fd)
 {
-	return (0);
-}
+	pid_t	pid;
+	int		result;
+	int		p[2];
 
-static int	eval_cmd(t_cmd *cmd)
-{
-	return (0);
+	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);
 }
+