+ if (fa && fa->__actions) {
+ struct fdop *op;
+ int ret, fd;
+ for (op = fa->__actions; op->next; op = op->next);
+ for (; op; op = op->prev) {
+ switch(op->cmd) {
+ case FDOP_CLOSE:
+ ret = __syscall(SYS_close, op->fd);
+ break;
+ case FDOP_DUP2:
+ ret = __syscall(SYS_dup2, op->fd, op->newfd)<0;
+ break;
+ case FDOP_OPEN:
+ fd = __syscall(SYS_open, op->path,
+ op->oflag | O_LARGEFILE, op->mode);
+ if (fd == op->fd) {
+ ret = 0;
+ } else {
+ ret = __syscall(SYS_dup2, fd, op->fd)<0;
+ __syscall(SYS_close, fd);
+ }
+ break;
+ }
+ if (ret) _exit(127);
+ }
+ }
+