resolved merge conflicts

9 files changed, 214 insertions, 65 deletions

diff --git a/Makefile b/Makefile
index 283db1a..7828678 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,8 @@ HEADERS =  -I include -I $(LIB_DIR)/libft
 VPATH   := src
 SRC     := main.c debug_tools.c init.c signal_handling.c repl.c new_token.c \
            free_token.c new_node.c free_node.c tokenizer.c parser.c \
-           parse_cmd.c collect_redirs.c print_ast.c interpreter.c env.c
+           parse_cmd.c collect_redirs.c print_ast.c interpreter.c env.c \
+           get_cmd_path.c env_to_strlst.c execute_cmd.c
 
 OBJ_DIR := _obj
 OBJ     := $(addprefix $(OBJ_DIR)/, $(SRC:%.c=%.o))
diff --git a/include/env.h b/include/env.h
index 3bf6bd6..a35bec3 100644
--- a/include/env.h
+++ b/include/env.h
@@ -6,7 +6,7 @@
 /*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/08/08 16:53:39 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/10/17 17:08:01 by chuhlig          ###   ########.fr       */
+/*   Updated: 2024/10/25 19:53:38 by chuhlig          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,6 +19,7 @@ typedef struct s_env
 	struct s_env	*next;
 }					t_env;
 
-void	getenvlst(t_env **env, char **en);
-void	free_envlst(t_env **env);
-char	*env_get(t_env *env, char *name);
+void				getenvlst(t_env **env, char **en);
+void				free_envlst(t_env **env);
+char				*env_get(t_env *env, char *name);
+char				**env_to_strlst(t_env *env);
\ No newline at end of file
diff --git a/include/minishell.h b/include/minishell.h
index 7b6226e..b2a3845 100644
--- a/include/minishell.h
+++ b/include/minishell.h
@@ -6,7 +6,7 @@
 /*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/06/22 17:14:49 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/10/22 16:52:26 by chuhlig          ###   ########.fr       */
+/*   Updated: 2024/10/25 16:10:21 by chuhlig          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -37,5 +37,7 @@ t_redirection	*collect_redirs(t_token **tokens);
 
 void			print_ast(t_node *ast);
 
-int	eval(t_node *node, t_env **env);
+int				eval(t_node *node, t_env **env);
+char			*get_cmd_path(char *cmd, t_env *env);
+int				execute_cmd(t_cmd *cmd, t_env *env);
 #endif
diff --git a/src/env.c b/src/env.c
index ca07f9f..3110965 100644
--- a/src/env.c
+++ b/src/env.c
@@ -6,13 +6,14 @@
 /*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/10/17 14:31:07 by chuhlig           #+#    #+#             */
-/*   Updated: 2024/10/25 15:48:56 by chuhlig          ###   ########.fr       */
+/*   Updated: 2024/10/25 19:17:54 by chuhlig          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "env.h"
 #include "get_next_line.h"
 #include "libft.h"
+#include <stdlib.h>
 
 void	getenvlst(t_env **env, char **en)
 {
@@ -51,7 +52,7 @@ void	free_envlst(t_env **env)
 	}
 }
 
-char *env_get(t_env *env, char *name)
+char	*env_get(t_env *env, char *name)
 {
 	while (env != NULL)
 	{
diff --git a/src/env_to_strlst.c b/src/env_to_strlst.c
new file mode 100644
index 0000000..3a58df9
--- /dev/null
+++ b/src/env_to_strlst.c
@@ -0,0 +1,58 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   env_to_strlst.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/21 14:52:08 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/10/21 15:07:33 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include "minishell.h"
+
+static char	*get_var_assign(t_env *cur);
+
+char	**env_to_strlst(t_env *env)
+{
+	int		size;
+	t_env	*cur;
+	char	**result;
+	int		i;
+
+	size = 0;
+	cur = env;
+	while (cur != NULL)
+	{
+		size++;
+		cur = cur->next;
+	}
+	result = malloc(sizeof(char *) * (size + 1));
+	if (result == NULL)
+		return (NULL);
+	i = 0;
+	cur = env;
+	while (i < size)
+	{
+		result[i] = get_var_assign(cur);
+		cur = cur->next;
+		i++;
+	}
+	result[i] = NULL;
+	return (result);
+}
+
+static char	*get_var_assign(t_env *cur)
+{
+	char	*left_side;
+	char	*result;
+
+	left_side = ft_strjoin(cur->name, "=");
+	if (left_side == NULL)
+		return (NULL);
+	result = ft_strjoin(left_side, cur->value);
+	free(left_side);
+	return (result);
+}
diff --git a/src/execute_cmd.c b/src/execute_cmd.c
new file mode 100644
index 0000000..fa7677f
--- /dev/null
+++ b/src/execute_cmd.c
@@ -0,0 +1,59 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   execute_cmd.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/21 13:58:56 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/10/25 13:31:16 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+#include <stdlib.h>
+#include <sys/_types/_pid_t.h>
+#include <sys/_types/_s_ifmt.h>
+#include <sys/fcntl.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+int	execute_cmd(t_cmd *cmd, t_env *env)
+{
+	int		result;
+	char	*cmd_path;
+	int fd;
+
+	cmd_path = get_cmd_path(cmd->args[0], env);
+	cmd->args[0] = cmd_path;
+
+	if (cmd->redirs[0].type == INPUT_FILE)
+	{
+		fd = open(cmd->redirs[0].specifier, O_RDONLY);
+		if (fd < 0)
+			return (EXIT_FAILURE);
+		dup2(fd, STDIN_FILENO);
+	}
+	else if (cmd->redirs[0].type == INPUT_LIMITER)
+	{
+		dbg("INPUT_LIMITER");
+	}
+	if (cmd->redirs[1].type == OUTPUT_APPEND)
+	{
+		dbg("OUTPUT_APPEND");
+		fd = open(cmd->redirs[1].specifier, O_WRONLY | O_CREAT | O_APPEND);
+		if (fd < 0)
+			return (EXIT_FAILURE);
+		dup2(fd, STDOUT_FILENO);
+	}
+	else if (cmd->redirs[1].type == OUTPUT_OVERRIDE)
+	{
+		fd = open(cmd->redirs[1].specifier, O_WRONLY | O_CREAT | O_TRUNC);
+		if (fd < 0)
+			return (EXIT_FAILURE);
+		dup2(fd, STDOUT_FILENO);
+		dbg("OUTPUT_OVERRIDE");
+	}
+	result = execve(cmd->args[0], cmd->args, env_to_strlst(env));
+	return (result);
+}
diff --git a/src/get_cmd_path.c b/src/get_cmd_path.c
new file mode 100644
index 0000000..1ecf393
--- /dev/null
+++ b/src/get_cmd_path.c
@@ -0,0 +1,82 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   get_cmd_path.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/10/17 16:45:47 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/10/17 17:11:27 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+#include "minishell.h"
+
+static char	*get_absolute_cmd_path(char *cmd, t_env *env);
+static char	*find_in_path(char *cmd, t_env *env);
+char		**get_split_path(t_env *env);
+
+char	*get_cmd_path(char *cmd, t_env *env)
+{
+	if (cmd[0] == '/')
+		return (ft_strdup(cmd));
+	else if (ft_strchr(cmd, '/'))
+		return (get_absolute_cmd_path(cmd, env));
+	else
+		return (find_in_path(cmd, env));
+}
+
+static char	*get_absolute_cmd_path(char *cmd, t_env *env)
+{
+	char	*cur_dir;
+	char	*result;
+
+	cur_dir = ft_strjoin(env_get(env, "PWD"), "/");
+	if (!cur_dir)
+		return (NULL);
+	result = ft_strjoin(cur_dir, cmd);
+	free(cur_dir);
+	if (!result)
+		return (NULL);
+	if (access(result, X_OK) == -1)
+	{
+		free(result);
+		return (NULL);
+	}
+	return (result);
+}
+
+static char	*find_in_path(char *cmd, t_env *env)
+{
+	char	*cur_path;
+	char	*cmd_path;
+	char	**path;
+
+	path = get_split_path(env);
+	cmd_path = NULL;
+	while (*path)
+	{
+		if (cmd_path)
+			free(cmd_path);
+		cur_path = ft_strjoin(*path, "/");
+		if (!cur_path)
+			return (NULL);
+		cmd_path = ft_strjoin(cur_path, cmd);
+		free(cur_path);
+		if (!cmd_path)
+			return (NULL);
+		if (access(cmd_path, X_OK) != -1)
+			return (cmd_path);
+		path++;
+	}
+	return (NULL);
+}
+
+char	**get_split_path(t_env *env)
+{
+	char	*path;
+
+	path = env_get(env, "PATH");
+	return (ft_split(path, ':'));
+}
diff --git a/src/interpreter.c b/src/interpreter.c
index 13f10ed..e69de29 100644
--- a/src/interpreter.c
+++ b/src/interpreter.c
@@ -1,55 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   interpreter.c                                      :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2024/08/05 13:15:24 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/10/25 15:46:53 by chuhlig          ###   ########.fr       */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include "minishell.h"
-#include <stdio.h>
-
-static int	eval_pipe(t_pipe *pipe, t_env *env);
-static int	eval_cmd(t_cmd *cmd, t_env **env);
-
-int	eval(t_node *node, t_env **env)
-{
-	if (node->type == PIPE_NODE)
-		return (eval_pipe(&node->content.pipe, *env));
-	else if (node->type == CMD_NODE)
-		return (eval_cmd(&node->content.cmd, env));
-	else
-	{
-		panic(UNREACHABLE);
-		return (-1);
-	}
-}
-
-static int	eval_pipe(t_pipe *pipe, t_env *env)
-{
-	dbg("TODO: PIPE");
-	eval_cmd(&pipe->left->content.cmd, &env);
-	eval_cmd(&pipe->right->content.cmd, &env);
-	return (0);
-}
-
-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);
-}
diff --git a/src/main.c b/src/main.c
index 3672fdd..18530bb 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,7 +6,7 @@
 /*   By: chuhlig <chuhlig@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/06/22 17:14:03 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/10/25 15:53:10 by chuhlig          ###   ########.fr       */
+/*   Updated: 2024/10/25 16:06:32 by chuhlig          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */