1 files changed, 104 insertions, 0 deletions
diff --git a/src/ft_e_externs_pipes.c b/src/ft_e_externs_pipes.c
new file mode 100644
index 0000000..d4d648d
--- /dev/null
+++ b/src/ft_e_externs_pipes.c
@@ -0,0 +1,104 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_e_externs_pipes.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 "ft_e_externs_next.h"
+#include "ft_m_redirs.h"
+#include "ft_s_destroy.h"
+#include "ft_s_lcom.h"
+#include "ft_s_struct.h"
+
+static void
+	ft_e_extern_child(const char *fullpath,
+					t_lcom *ptr,
+					t_msh *msh)
+{
+	ft_dup_redirs(ptr, msh);
+	execve(fullpath, ptr->argv, msh->envp);
+	/* TODO: handle execve failed */
+}
+
+static void
+	ft_exec_path(const char *fullpath[],
+				struct s_lpipes *ptr,
+				t_msh *msh)
+{
+	/* TODO: norme */
+	pid_t	pid;
+	int32_t	pipefd[2];
+	int32_t	status;
+
+	pipe(pipefd);
+	if ((pid = fork()) == 0)
+	{
+		close(pipefd[0]);
+		dup2(pipefd[1], STDOUT_FILENO);
+		ft_e_extern_child(fullpath[0], ptr->one, msh);
+	}
+	else if (pid < 0)
+	{
+		/* TODO: handle fork failed */
+	}
+	if ((pid = fork()) == 0)
+	{
+		close(pipefd[1]);
+		dup2(pipefd[0], STDIN_FILENO);
+		ft_e_extern_child(fullpath[1], ptr->next->one, msh);
+	}
+	/* else */
+	/* { */
+		close(pipefd[0]);
+		close(pipefd[1]);
+		while (wait(&status) != pid)
+			;
+		while (wait(&status) != pid)
+			;
+		msh->ret = WEXITSTATUS(status);
+	/* } */
+}
+
+void
+	ft_e_externs_pipes(struct s_lpipes *ptr,
+					t_msh *msh)
+{
+	char	**envpath;
+	char	**fullpath;
+	size_t	i;
+
+	if (!(fullpath = (char**)malloc(3 * sizeof(char*))))
+		return ;
+	fullpath[2] = NULL;
+	i = 0;
+	while (i < 2)
+	{
+		if (ft_ischarset("/.", ptr->one->com[0]))
+		{
+			if (!(fullpath[i] = ft_strdup(ptr->one->com)))
+				return ;
+		}
+		else if ((envpath = ft_get_env_path(msh)) != NULL)
+		{
+			fullpath[i] = ft_search_in_path(ptr->one->com, envpath, msh);
+			ft_delwords(envpath);
+		}
+		/* TODO: deal if not found etc */
+		ptr = ptr->next;
+		i++;
+	}
+	ft_exec_path((const char**)fullpath, ptr, msh);
+	ft_delwords(fullpath);
+}