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pipes are broken :(

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This commit is contained in:
mdev9
2024-02-25 14:03:19 +01:00
parent ee673be657
commit 832763186b
2 changed files with 46 additions and 27 deletions
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69
srcs/exec.c
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@ -6,7 +6,7 @@
/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/02/07 14:12:49 by tomoron #+# #+# */
/* Updated: 2024/02/25 11:16:32 by marde-vr ### ########.fr */
/* Updated: 2024/02/25 14:02:58 by marde-vr ### ########.fr */
/* */
/* ************************************************************************** */
@ -118,33 +118,39 @@ int is_fd_open(int fd) // debug
return 1;
}
void redirect_input(t_msh *msh)
void redirect_input(t_msh *msh, int i)
{
if (dup2(msh->fds[0], 0) < 0)
ft_printf_fd(2, "i: %d\ninput: %d\n", i, msh->fds[i - 1][0]);
if (dup2(msh->fds[i - 1][0], 0) < 0)
ft_exit(msh, 1);
}
void redirect_output(t_msh *msh)
void redirect_output(t_msh *msh, int i)
{
if (dup2(msh->fds[1], 1) < 0)
if (dup2(msh->fds[i][1], 1) < 0)
ft_exit(msh, 1);
//close(msh->fds[0]);
}
void pipe_child(t_msh *msh, char **cmd_args)
void pipe_child(t_msh *msh, char **cmd_args, int i)
{
if (msh->in_type != ARG)
{
ft_printf_fd(2, "redirecting input\n");
redirect_input(msh);
redirect_input(msh, i);
close(msh->fds[i - 1][0]);
}
if (msh->out_type != ARG)
{
ft_printf_fd(2, "redirecting output\n");
redirect_output(msh);
redirect_output(msh, i);
if (i != 0)
{
close(msh->fds[i - 1][0]);
close(msh->fds[i - 1][1]);
}
close(msh->fds[i][1]);
}
close(msh->fds[0]);
close(msh->fds[1]);
//close(msh->fds[i][0]);
if (msh->cmds->token && (!ft_strcmp(msh->cmds->token, "cd")
|| !ft_strcmp(msh->cmds->token, "alias")
|| !ft_strcmp(msh->cmds->token, "unalias")
@ -159,14 +165,18 @@ void pipe_child(t_msh *msh, char **cmd_args)
ft_exit(msh, 1);
}
void pipe_parent(t_msh *msh)
/*
void pipe_parent(t_msh *msh, int i)
{
(void)msh;
//ft_printf_fd(2, "closed: %d\n", msh->fds[0]);
//close(msh->fds[0]);
//ft_printf_fd(2, "closed: %d\n", msh->fds[1]);
close(msh->fds[1]);
}
if (msh->fds[1] != 0)
close(msh->fds[1]);
//if (msh->fds[0] != 0)
// close(msh->fds[0]);
}*/
int get_cmd_count(t_cmd *cmds)
{
@ -193,11 +203,11 @@ int exec(t_msh *msh, char **cmd_args, int i, int cmd_count)
if (i != cmd_count - 1)
{
ft_printf_fd(2, "piping\n");
if (pipe(msh->fds) == -1)
//ft_printf_fd(2, "piping\n");
if (pipe(msh->fds[i]) == -1)
{
perror("pipe");
ft_printf_fd(2, "exiting (pipe)\n"); // debug
//ft_printf_fd(2, "exiting (pipe)\n"); // debug
ft_exit(msh, 1);
}
}
@ -205,15 +215,19 @@ int exec(t_msh *msh, char **cmd_args, int i, int cmd_count)
if (pid == -1)
{
perror("fork");
ft_printf_fd(2, "exiting (fork)\n"); //debug
//ft_printf_fd(2, "exiting (fork)\n"); //debug
ft_exit(msh, 1);
}
if (pid == 0)
pipe_child(msh, cmd_args);
pipe_child(msh, cmd_args, i);
else
{
pipe_parent(msh);
//pipe_parent(msh);
//rl_redisplay();
if (i != 0 && msh->fds[i - 1][1] != 0)
close(msh->fds[i - 1][1]);
if (i != 0 && msh->fds[i][0] != 0)
close(msh->fds[i][0]);
msh->pids[i] = pid;
}
return (0);
@ -265,12 +279,11 @@ void remove_command_from_msh(t_msh *msh)
free(cmd_tmp);
msh->cmds = cmd_cur;
}
msh->in_type = 0;
msh->in_type = ARG;
}
void get_out_type(t_msh *msh)
{
msh->out_type = 1;
t_cmd *cur_cmd;
cur_cmd = msh->cmds;
while (cur_cmd && cur_cmd->next && cur_cmd->type == ARG)
@ -290,13 +303,16 @@ void exec_command(t_msh *msh)
i = 0;
if (!msh->cmds)
return ;
msh->fds = ft_calloc(2, sizeof(int *));
cmd_count = get_cmd_count(msh->cmds);
msh->fds = ft_calloc(cmd_count, sizeof(int **));
msh->pids = ft_calloc(cmd_count, sizeof(int *));
if (!msh->pids)
if (!msh->pids || !msh->fds)
ft_exit(msh, 1);
while (i < cmd_count)
{
msh->fds[i] = ft_calloc(2, sizeof(int *));
if (!msh->fds[i])
ft_exit(msh, 1);
get_out_type(msh);
if (!cmd_is_builtin(msh, msh->cmds->token))
get_cmd_path(msh);
@ -307,8 +323,11 @@ void exec_command(t_msh *msh)
i = cmd_count - 1;
while (i >= 0)
{
if (msh->fds[i][0] != 0)
close(msh->fds[i][0]);
waitpid(msh->pids[i], 0, 0);
i--;
}
close(msh->fds[0]);
i = 0;
//todo: free fds tab
}