int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque, int abort_on_failure) { QemuOpt *opt; int rc = 0; TAILQ_FOREACH(opt, &opts->head, next) { rc = func(opt->name, opt->str, opaque); if (abort_on_failure && rc != 0) break; } return rc; }