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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: dkaiser <dkaiser@student.42heilbronn.de +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/04/29 13:35:21 by dkaiser #+# #+# */
/* Updated: 2024/05/08 11:53:26 by dkaiser ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
#include "pipex.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/_types/_pid_t.h>
#include <unistd.h>
static void pipex_child(t_pxdata *data, char *envp[], int p[2])
{
char **cmd;
int status;
close(p[0]);
dup2(data->in_fd, 0);
dup2(p[1], 1);
if (!data->cmds[0])
exit(127);
cmd = ft_split(data->cmds[0], ' ');
if (cmd)
{
status = execve(cmd[0], cmd, envp);
ft_free_split(cmd);
exit(status);
}
}
static int pipex_parent(t_pxdata *data, char *envp[], int p[2])
{
char **cmd;
close(p[1]);
dup2(p[0], 0);
dup2(data->out_fd, 1);
if (!data->cmds[1])
return (EXIT_FAILURE);
cmd = ft_split(data->cmds[1], ' ');
if (cmd)
{
if (execve(cmd[0], cmd, envp))
return (EXIT_FAILURE);
ft_free_split(cmd);
return (EXIT_SUCCESS);
}
return (EXIT_FAILURE);
}
static int pipex(t_pxdata *data, char *envp[])
{
int result;
int p[2];
pid_t pid;
pipe(p);
result = EXIT_SUCCESS;
pid = fork();
if (pid < 0)
return (EXIT_FAILURE);
if (pid == 0)
pipex_child(data, envp, p);
else
result = pipex_parent(data, envp, p);
close(data->in_fd);
close(data->out_fd);
ft_free_split(data->cmds);
free(data);
return (result);
}
int main(int argc, char *argv[], char *envp[])
{
t_pxdata *data;
if (argc != 5)
return (1);
data = get_pxdata(argc, argv, envp);
return (pipex(data, envp));
}
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