276       int run, loop, *urd, pout, pipe;
288     int *urd, envlen, pid, exit, not, job, dash;
802 static void unredirect(int *urd)  in unredirect()  argument
804   int *rr = urd+1, i;  in unredirect()
806   if (!urd) return;  in unredirect()
808   for (i = 0; i<*urd; i++, rr += 2) if (rr[0] != -1) {  in unredirect()
813   free(urd);  in unredirect()
834   unredirect(blk->urd);  in pop_block()
2055 static struct sh_process *expand_redir(struct sh_arg *arg, int skip, int *urd)  in expand_redir()  argument
2063   pp->urd = urd;  in expand_redir()
2090       save_redirect(&pp->urd, -2, new);  in expand_redir()
2142         if (save_redirect(&pp->urd, -1, to)) break;  in expand_redir()
2245     if (save_redirect(&pp->urd, from, to)) bad++;  in expand_redir()
2248       --*pp->urd;  in expand_redir()
2252     if ((saveclose&1) && save_redirect(&pp->urd, -1, from)) bad++;  in expand_redir()
2253     if ((saveclose&4) && save_redirect(&pp->urd, from, 2)) bad++;  in expand_redir()
2430   unredirect(pp->urd);  in run_command()
2431   pp->urd = 0;  in run_command()
3196       unredirect(TT.ff->blk->urd);  in run_lines()
3197       TT.ff->blk->urd = 0;  in run_lines()
3203         if (save_redirect(&TT.ff->blk->urd, TT.ff->blk->pout, 0)) break;  in run_lines()
3218         if (save_redirect(&TT.ff->blk->urd, pipes[1], 1)) {  in run_lines()
3226         if (ctl[1] == '&') save_redirect(&TT.ff->blk->urd, 1, 2);  in run_lines()
3261       pp = expand_redir(TT.ff->pl->end->arg, 1, TT.ff->blk->urd);  in run_lines()
3262       TT.ff->blk->urd = pp->urd;  in run_lines()
3263       pp->urd = 0;  in run_lines()
3285           TT.ff->blk->urd = 0;  in run_lines()
4001   free(TT.pp->urd);  in exec_main()
4002   TT.pp->urd = 0;  in exec_main()