/* ISC license. */ #include #include #include #include int textclient_commandv (textclient *a, struct iovec const *v, unsigned int n, tain const *deadline, tain *stamp) { struct iovec ans ; if (!textclient_exchangev(a, v, n, &ans, deadline, stamp)) return 0 ; if (ans.iov_len != 1) return (errno = EPROTO, 0) ; if (*(char *)ans.iov_base) return (errno = *(char *)ans.iov_base, 0) ; return 1 ; }