I couldn't see shit

1 files changed, 79 insertions, 0 deletions

diff --git a/src/e_externs.c b/src/e_externs.c
new file mode 100644
index 0000000..d7c4854
--- /dev/null
+++ b/src/e_externs.c
@@ -0,0 +1,79 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   e_externs.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 "e_externs_next.h"
+#include "m_redirs.h"
+#include "s_destroy.h"
+#include "s_lcom.h"
+#include "s_struct.h"
+
+static void
+	e_extern_child(const char *fullpath,
+					t_lcom *ptr,
+					t_msh *msh)
+{
+	dup_redirs(ptr, msh);
+	execve(fullpath, ptr->argv, msh->envp);
+	/* TODO: handle execve failed */
+}
+
+static void
+	exec_path(const char fullpath[],
+				t_lcom *ptr,
+				t_msh *msh)
+{
+	pid_t	pid;
+	int32_t	status;
+
+	if ((pid = fork()) == 0)
+	{
+		e_extern_child(fullpath, ptr, msh);
+	}
+	else if (pid < 0)
+	{
+		/* TODO: handle fork failed */
+	}
+	else
+	{
+		while (wait(&status) != pid)
+			;
+		msh->ret = WEXITSTATUS(status);
+	}
+}
+
+void
+	e_extern(t_lcom *ptr,
+				t_msh *msh)
+{
+	char	**envpath;
+	char	*fullpath;
+
+	if (ft_ischarset("/.", ptr->com[0]))
+	{
+		exec_path(ptr->com, ptr, msh);
+		return ;
+	}
+	else if ((envpath = get_env_path(msh)) != NULL)
+	{
+		fullpath = search_in_path(ptr->com, envpath, msh);
+		ft_delwords(envpath);
+	}
+	/* TODO: deal if not found etc */
+	exec_path(fullpath, ptr, msh);
+	ft_memdel((void*)&fullpath);
+}