test pipe

main.c

@@ -6,7 +6,7 @@
 /*   By: apommier <apommier@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/03/06 13:27:11 by apommier          #+#    #+#             */
-/*   Updated: 2022/03/06 17:41:41 by apommier         ###   ########.fr       */
+/*   Updated: 2022/03/07 11:57:14 by apommier         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -22,6 +22,7 @@ int	main(int ac, char **av, char **path)
 	char	*input;
 
 	printf("---MINISHELL  START---\n");
+	execute(t_cmd *cmd, *infile, *outfile);
 	while (1)
 	{
 		color();

minishell.h

@@ -37,12 +37,13 @@ typedef struct	s_command {
 	char				*out_file;
 	char				*input_file;
 	char				*err_file;
-	int					background;
-	struct s_command	*current_cmd;
 	struct	s_simple	*current_s_cmd;
 }						t_cmd;
 
 //main.c
 int	main();//int ac, char **av, char **path);
 
+//pipe.c
+void	execute(t_cmd *cmd, char *infile, char *outfile);
+
 #endif

pipe.c

@@ -0,0 +1,84 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   pipe.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: apommier <apommier@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/03/07 11:13:32 by apommier          #+#    #+#             */
+/*   Updated: 2022/03/07 11:52:26 by apommier         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+
+void	execute(t_cmd *cmd, char *infile, char *outfile)
+{
+	//save in/out 
+	int ret;
+	int fdout;
+	int tmpin = dup(0);
+	int tmpout= dup(1);
+	int fdin;
+	int fdpipe[2];
+	int i;
+
+	i = 0;
+	//set the initial input 
+	if (infile) 
+		fdin = open(infile,O_READ); 
+	else //Use default input	
+		fdin=dup(tmpin);
+
+	while( i < numsimplecommands) 
+	{
+		//redirect input
+		dup2(fdin, 0);
+		close(fdin);
+		//setup output
+		if (i == numsimplecommands - 1)
+		{
+			if(outfile)// Last simple command
+				fdout=open(outfile,……);
+			else// Use default output
+				fdout=dup(tmpout);
+		}
+		else 
+		{
+			// Not last 
+			//simple command
+			//create pipe
+			//int fdpipe[2];
+			pipe(fdpipe);
+			fdout=fdpipe[1];
+			fdin=fdpipe[0];
+		}// if/else
+
+		// Redirect output
+		dup2(fdout,1);
+		close(fdout);
+ 
+		// Create child process
+		ret=fork(); 
+		if(ret==0)
+		{
+			execvp(scmd[i].args[0], scmd[i].args);
+			perror(“execvpâ€);
+			_exit(1);
+		}
+		i++;
+	} //while
+ 
+	//restore in/out defaults
+	dup2(tmpin,0);
+	dup2(tmpout,1);
+	close(tmpin);
+	close(tmpout);
+
+	if (!background) {
+	// Wait for last command
+	waitpid(ret, NULL);
+	}
+
+} // execute 
+