544     struct putchar_arg pca;  in vprintf()  local
550     pca.tty = NULL;  in vprintf()
551     pca.flags = TOCONS | TOLOG;  in vprintf()
552     pca.pri = -1;  in vprintf()
554     pca.p_bufr = bufr;  in vprintf()
555     pca.p_next = pca.p_bufr;  in vprintf()
556     pca.n_bufr = sizeof(bufr);  in vprintf()
557     pca.remain = sizeof(bufr);  in vprintf()
558     *pca.p_next = '\0';  in vprintf()
561     pca.p_bufr = NULL;  in vprintf()
564     retval = kvprintf(fmt, kputchar, &pca, 10, ap);  in vprintf()
568     if (*pca.p_bufr != '\0') {  in vprintf()
569         cnputs(pca.p_bufr);  in vprintf()
570         msglogstr(pca.p_bufr, pca.pri, /*filter_cr*/ 1);  in vprintf()