116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* pipex_bonus.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2023/03/20 09:48:45 by erey-bet #+# #+# */
|
|
/* Updated: 2023/03/23 17:15:05 by erey-bet ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "pipex_bonus.h"
|
|
|
|
void make_cmd(t_data data, int i, int fl1, int fl2)
|
|
{
|
|
if (fl1 > 0)
|
|
dup2(fl1, 0);
|
|
dup2(fl2, 1);
|
|
close(data.fd[0][0]);
|
|
close(data.fd[0][1]);
|
|
if (i > 0)
|
|
{
|
|
close(data.fd[1][0]);
|
|
close(data.fd[1][1]);
|
|
}
|
|
if (data.fd1 > 0)
|
|
close(data.fd1);
|
|
if (data.fd2 > 0)
|
|
close(data.fd2);
|
|
execve(data.cmds[i], data.flgs[i], data.env);
|
|
}
|
|
|
|
void choice_cmd(t_data data, int i, int **forks)
|
|
{
|
|
if (i == 0)
|
|
make_cmd(data, 0, data.fd1, data.fd[0][1]);
|
|
else if (i + 1 < data.argc - 3)
|
|
make_cmd(data, i, data.fd[(i + 1) % 2][0], data.fd[i % 2][1]);
|
|
else
|
|
make_cmd(data, i, data.fd[(i + 1) % 2][0], data.fd2);
|
|
write(2, "Error execve\n", 13);
|
|
free(*forks);
|
|
free_all(&data);
|
|
exit(1);
|
|
}
|
|
|
|
int pipex_loop(int argc, int **forks, t_data data)
|
|
{
|
|
int i;
|
|
|
|
i = -1;
|
|
while (++i < argc - 3)
|
|
{
|
|
if (open_close_pipe(&data, 0, i % 2))
|
|
return (1);
|
|
if ((i > 0 || (i == 0 && data.fd1 > 0)) && data.cmds[i])
|
|
{
|
|
(*forks)[i] = fork();
|
|
if ((*forks)[i] < 0)
|
|
return (1);
|
|
if ((*forks)[i] == 0)
|
|
choice_cmd(data, i, forks);
|
|
}
|
|
if (i > 0)
|
|
if (open_close_pipe(&data, 1, (i + 1) % 2))
|
|
return (1);
|
|
}
|
|
return (open_close_pipe(&data, 1, (i + 1) % 2));
|
|
}
|
|
|
|
int pipex(int argc, t_data data)
|
|
{
|
|
int *forks;
|
|
int i;
|
|
|
|
forks = ft_calloc(argc - 3, sizeof(int));
|
|
if (!forks)
|
|
return (1);
|
|
if (pipex_loop(argc, &forks, data))
|
|
{
|
|
free(forks);
|
|
return (1);
|
|
}
|
|
i = -1;
|
|
while (++i < argc - 3)
|
|
waitpid(forks[i], NULL, 0);
|
|
free(forks);
|
|
return (0);
|
|
}
|
|
|
|
int main(int argc, char *argv[], char **env)
|
|
{
|
|
t_data data;
|
|
|
|
if (argc < 5 || (!ft_strncmp(argv[1], "here_doc", 8) && argc < 6))
|
|
{
|
|
write(2, "Not enought argument\n", 21);
|
|
return (1);
|
|
}
|
|
if (ft_strncmp(argv[1], "here_doc", 8) == 0)
|
|
{
|
|
argc = argc - 1;
|
|
if (here_doc(argc, argv, env, &data))
|
|
return (free_all(&data));
|
|
}
|
|
else if (parsing(argc, argv, env, &data))
|
|
return (1);
|
|
if (verification_command(argv, data))
|
|
return (free_all(&data));
|
|
if (pipex(argc, data))
|
|
return (free_all(&data));
|
|
free_all(&data);
|
|
return (0);
|
|
}
|