I couldn't see shit

1 files changed, 89 insertions, 0 deletions

diff --git a/src/e_builtins.c b/src/e_builtins.c
new file mode 100644
index 0000000..e35416a
--- /dev/null
+++ b/src/e_builtins.c
@@ -0,0 +1,89 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   e_builtins.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: rbousset <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/02/14 17:19:27 by rbousset          #+#    #+#             */
+/*   Updated: 2020/02/14 17:19:29 by rbousset         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <sys/wait.h>
+#include <libft.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include "m_redirs.h"
+#include "s_destroy.h"
+#include "s_lcom.h"
+#include "s_struct.h"
+
+static void
+	e_builtin_child(const t_lcom *ptr,
+					uint8_t bu_id,
+					t_msh *msh)
+{
+	int32_t	ret;
+
+	dup_redirs(ptr, msh);
+	ret = msh->bu_ptr[bu_id](ptr->argv + 1, msh);
+	lcom_clear(&msh->curr);
+	s_destroy(msh);
+	exit(ret);
+}
+
+static void
+	e_builtin_parent(pid_t pid,
+						const t_lcom *ptr,
+						uint8_t bu_id,
+						t_msh *msh)
+{
+	int32_t	status;
+	int32_t	ret;
+
+	while (wait(&status) != pid)
+		;
+	ret = WEXITSTATUS(status);
+	if (bu_id != 6)
+		msh->ret = ret;
+	if (bu_id == 1 && msh->ret == 0)
+	{
+		msh->bu_ptr[bu_id](ptr->argv + 1, msh);
+		/* TODO: export $PWD */
+	}
+	else if (bu_id == 6 && ret == 0)
+	{
+		if (ptr->argv[1])
+			ret = ft_atoi(ptr->argv[1]);
+		else
+			ret = msh->ret;
+		lcom_clear(&msh->curr);
+		s_destroy(msh);
+		exit(ret);
+	}
+}
+
+void
+	e_builtin(const t_lcom *ptr,
+				uint8_t bu_id,
+				t_msh *msh)
+{
+	pid_t	pid;
+
+	/* TODO: find a way to handle exit | bu_id = 6 */
+	if ((pid = fork()) == 0)
+	{
+		e_builtin_child(ptr, bu_id, msh);
+	}
+	else if (pid < 0)
+	{
+		/* TODO: handle fork failed */
+	}
+	else
+	{
+		e_builtin_parent(pid, ptr, bu_id, msh);
+	}
+}