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Alexandre POMMIER 2022-01-20 20:27:25 +01:00
parent 98f062ada2
commit 08314da7dc
2 changed files with 99 additions and 59 deletions
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152
main.c
View File

@ -6,12 +6,107 @@
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/01/19 12:45:03 by apommier #+# #+# */
/* Updated: 2022/01/20 19:07:24 by apommier ### ########.fr */
/* Updated: 2022/01/20 20:26:59 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include "pipex.h"
char **get_path(char **envp)
{
int i;
int j;
char **line;
char *swap;
i = 0;
j = 0;
line = 0;
swap = 0;
while (envp[i++] && envp[i])
{
if (!ft_strncmp(envp[i], "PATH", 4))
{
swap = ft_substr(envp[i], -1, 4);
line = ft_split(swap, ':');
free(swap);
return (line);
}
free(line);
}
return (0);
}
char *get_command(char *exec, char **envp)
{
char **path;
char *cmd;
char *del;
int i;
i = 0;
cmd = exec;
path = get_path(envp);
while (access(cmd, F_OK) && path[i++])
{
del = cmd;
cmd = ft_strjoin("/", cmd);
free(del);
del = cmd;
cmd = ft_strjoin(path[i], cmd);
free(del);
}
return (cmd);
}
void pipex(char *cmd1, char *cmd2, int fd1, int fd2, char **envp)
{
int *pipe;
pid_t parent;
pipe = ft_calloc(sizeof(int), 2);
if (pipe(pipe) == -1)
return ;
parent = fork();
if (parent < 0)
{
free(pipe);
return ;
}
if (!parent)
child(cmd1, fd1, path);
else
parent(cmd2, fd2, path);
else
free(pipe);
}
void child(int fd1, char **envp, char **argv)
{
int i;
char *cmd1;
cmd1 = 0;
i = 0;
if (!dup2(fd1, STDIN_FILENO))
return ;
if (!dup2(pipe[1], STDIN_FILENO))
return ;
close(end[0]);
close(fd1);
cmd1 = get_command(argc[0], envp);
if (cmd1)
execve(cmd1, argv, envp)
free(cmd1);
}
void parent(int fd2, char **envp, char **argv)
{
char *cmd2;
return ;
}
int main(int argc, char **argv, char **envp)
{
int fd1;
@ -21,62 +116,9 @@ int main(int argc, char **argv, char **envp)
if (check_error)
return (0);
fd1 = open(argv[1], O_RDONLY);
fd2 = open(argv[4], O_RDWR | O_CREAT | O_TRUNC);
fd2 = open(argv[4], O_RDWR | O_CREAT | O_TRUNC, 0644);
if (!fd1 || !fd2)
return (0);
path = get_path(envp);
pipex(argv[1], argv[4], fd1, fd2);
return (1);
}
char *get_path(char **envp)
{
int i;
int j;
char **line;
char **swap;
i = 0;
j = 0;
line = 0;
swap = 0;
while (envp[i++] && envp[i])
{
line = ft_split(envp[i], ':');
if (!ft_strncmp(line[0], "PATH", 4))
return (line);
free(line);
}
return (0);
}
void pipex(char *cmd1, char *cmd2, int fd1, int fd2, char **)
{
int *pipe;
pid_t parent;
pipe = ft_calloc(sizeof(int), 2);
pipe(pipe);
parent = fork();
if (parent < 0)
{
free(pipe);
return (0);
}
if (!parent)
child(cmd1, fd1, path);
else
parent(cmd2, fd2, path);
else
free(pipe);
}
child(char *cmd1, int fd1, char **path)
{
}
parent(char *cmd2, int fd2, char **path)
{
}

6
pipex.h
View File

@ -6,15 +6,13 @@
/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/01/19 12:45:13 by apommier #+# #+# */
/* Updated: 2022/01/20 18:13:02 by apommier ### ########.fr */
/* Updated: 2022/01/20 19:38:53 by apommier ### ########.fr */
/* */
/* ************************************************************************** */
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "/libft/libft.h"
#include "./libft/libft.h"