106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* exec_pline.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/02/12 09:50:12 by lderidde #+# #+# */
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/* Updated: 2025/02/12 13:30:51 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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void exec_pcmd(t_ast_n *pcmd)
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{
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int ret;
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if (pcmd->msh->here_fd != -1)
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close(pcmd->msh->here_fd);
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close(pcmd->msh->hist);
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if (pcmd->save_stdo != -1)
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close(pcmd->save_stdo);
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if (pcmd->save_stdi != -1)
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close(pcmd->save_stdi);
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if (!pcmd->cmd)
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exit(0);
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if (is_builtin(pcmd->cmd))
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{
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ret = exec_builtin(pcmd);
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free_child(pcmd->msh);
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exit(ret);
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}
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else
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exec(pcmd);
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}
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void exec_pchild(int *pipes, int index, t_ast_n *pcmd, int cmds)
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{
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int ret;
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ret = 0;
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if (index < cmds - 1)
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dup2(pipes[1], STDOUT_FILENO);
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close(pipes[0]);
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close(pipes[1]);
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if (handle_redir(pcmd))
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{
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free_child(pcmd->msh);
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exit(1);
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}
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if (pcmd->state == _CMD)
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exec_pcmd(pcmd);
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else if (pcmd->state == _SUBSH)
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{
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ret = execute_shcommand(pcmd->left);
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free_child(pcmd->msh);
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exit(ret);
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}
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}
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int end_pline(pid_t last_pid, t_ast_n **pline)
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{
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int status;
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int i;
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i = -1;
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waitpid(last_pid, &status, 0);
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while (++i < count_cmds(pline) - 1)
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wait(NULL);
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reset_redir(pline[0]->parent);
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if (WIFEXITED(status))
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return (WEXITSTATUS(status));
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else
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return (1);
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}
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int exec_pline(t_ast_n **pline)
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{
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int i;
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pid_t pid;
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pid_t last_pid;
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i = -1;
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while (pline[++i])
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{
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if (i == 0)
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handle_redir(pline[0]->parent);
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pipe(pline[i]->fds);
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pid = fork();
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if (pid == 0)
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exec_pchild(pline[i]->fds, i, pline[i], count_cmds(pline));
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else if (pid > 0)
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{
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dup2(pline[i]->fds[0], STDIN_FILENO);
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close(pline[i]->fds[0]);
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close(pline[i]->fds[1]);
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if (i == count_cmds(pline) - 1)
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last_pid = pid;
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}
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else if (pid < 0)
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return (err_fork_pline(pline[i]->fds));
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}
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return (end_pline(last_pid, pline));
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}
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