113 lines
2.7 KiB
C
113 lines
2.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* exec_subsh.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 09:52:04 by lderidde #+# #+# */
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/* Updated: 2025/02/12 13:30:47 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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int exec_shcmd(t_ast_n *node)
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{
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pid_t pid;
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int status;
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if (is_builtin(node->cmd))
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return (exec_builtin(node));
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else
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{
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pid = fork();
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if (pid == 0)
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exec(node);
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else if (pid > 0)
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{
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waitpid(pid, &status, 0);
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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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else
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perror("fork");
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return (1);
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}
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}
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static int execute_shand(t_ast_n *node)
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{
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node->msh->ex_code = execute_shcommand(node->left);
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if (node->msh->ex_code == 0)
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node->msh->ex_code = execute_shcommand(node->right);
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return (node->msh->ex_code);
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}
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int execute_shcommand(t_ast_n *node)
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{
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if (node->state == _CMD)
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if (handle_redir(node) == 1)
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return (1);
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if (node->state == _CMD)
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node->msh->ex_code = exec_shcmd(node);
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else if (node->state == _AND)
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execute_shand(node);
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else if (node->state == _OR)
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{
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node->msh->ex_code = execute_shcommand(node->left);
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if (node->msh->ex_code != 0)
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node->msh->ex_code = execute_shcommand(node->right);
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}
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else if (node->state == _PLINE)
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node->msh->ex_code = exec_pline(node->pline);
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else if (node->state == _SUBSH)
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node->msh->ex_code = exec_subsh(node->left);
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if (node->state == _CMD)
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reset_redir(node);
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return (node->msh->ex_code);
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}
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static int in_subsh(t_ast_n *node)
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{
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int ret;
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if (handle_redir(node->parent) == 1)
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{
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free_child(node->msh);
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return (1);
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}
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ret = execute_shcommand(node);
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free_child(node->msh);
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return (ret);
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}
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int exec_subsh(t_ast_n *node)
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{
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int status;
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pid_t pid;
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int ret;
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pid = fork();
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if (pid == 0)
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{
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ret = in_subsh(node);
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exit (ret);
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}
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else if (pid > 0)
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{
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waitpid(pid, &status, 0);
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if (WIFEXITED(status) && node->parent->state != _PLINE)
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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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else
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{
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perror("fork");
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return (1);
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}
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}
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