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working on execution

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This commit is contained in:
mdev9
2024-02-21 19:16:41 +01:00
parent c1ed9b355d
commit 1914c9253a
2 changed files with 74 additions and 6 deletions
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77
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: 2024/02/21 17:46:47 by marde-vr ### ########.fr */
/* Updated: 2024/02/21 19:11:20 by marde-vr ### ########.fr */
/* */
/* ************************************************************************** */
@ -92,7 +92,7 @@ char **split_paths_from_env(t_env *env)
}
if (!path_in_envp)
{
ft_printf_fd(2, "pipex: error: PATH not found\n");
ft_printf_fd(2, "msh: error: PATH not found\n");
return (0);
}
return (ft_split(cur_env_var->value, ':'));
@ -151,20 +151,83 @@ void get_cmd_path(t_msh *msh)
}
}
void redirect_input(t_msh *msh)
{
if (dup2(msh->fds[0], 0) < 0)
ft_exit(msh, 1);
}
void redirect_output(t_msh *msh)
{
if (dup2(msh->fds[1], 1) < 0)
ft_exit(msh, 1);
close(msh->fds[1]);
}
void pipe_child(t_msh *msh, char **cmd_args)
{
redirect_input(msh);
redirect_output(msh);
close(msh->fds[0]);
close(msh->fds[1]);
execve(msh->cmds->token, cmd_args, env_to_char_tab(msh->env));
close(0);
close(1);
close(2);
ft_exit(msh, 1);
}
void pipe_parent(t_msh *msh)
{
close(msh->fds[0]);
close(msh->fds[1]);
}
int exec(t_msh *msh, t_cmd *cmd, char **cmd_args)
{
pid_t pid;
if (msh->cmds != cmd)
{
if (pipe(msh->fds) == -1)
{
perror("pipe");
ft_exit(msh, 1);
}
}
pid = fork();
if (pid == -1)
{
perror("fork");
ft_exit(msh, 1);
}
if (pid == 0)
pipe_child(msh, cmd_args);
else
{
pipe_parent(msh);
rl_redisplay();
if (waitpid(pid, 0, 0) < 0)
ft_exit(msh, 1);
}
return (0);
}
void exec_command(t_msh *msh)
{
t_cmd *cur_cmd;
int args_count;
char **cmd_args;
int i;
pid_t pid;
if (!msh->cmds || exec_builtin(msh))
return ;
cur_cmd = msh->cmds;
args_count = get_args_count(msh->cmds);
msh->fds = ft_calloc(2, sizeof(int *));
cmd_args = ft_calloc(args_count + 1, sizeof(char *));
if (!cmd_args)
if (!cmd_args || !msh->fds)
ft_exit(msh, 1);
i = 0;
get_cmd_path(msh);
@ -174,6 +237,10 @@ void exec_command(t_msh *msh)
cur_cmd = cur_cmd->next;
i++;
}
exec(msh, msh->cmds, cmd_args);
//free(msh->fds);
/*
pid = fork();
if (pid == -1)
{
@ -191,7 +258,7 @@ void exec_command(t_msh *msh)
rl_redisplay();
if (waitpid(pid, 0, 0) < 0)
ft_exit(msh, 1);
}
}*/
//if (cur_cmd->type == PIPE)
// exec_command(cur_cmd->next, env);
}