Executor

AST traversal, command dispatch, pipes, redirections & heredoc.

AST traversal, command dispatch, pipes, redirections & heredoc.

The executor walks the AST recursively.
NODE_COMMAND dispatches to builtins (parent process) or external commands (fork + execve).
NODE_PIPE creates 2 children connected by a pipe.
NODE_REDIR_... implement save-redirect-execute-restore with dup2().

Files

• executor.c
• exec_cmd.c
• exec_utils.c
• executor_pipe.c
• executor_redir.c
• heredoc.c
• heredoc_collect.c
• path.c