1 /* @(#)ttoutput.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: ttoutput.c,v 1.9 2009/04/14 08:50:06 lukem Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 * Buffered output package.
44 * We need this because stdio fails on non-blocking writes.
51 int n = tt_obp - tt_ob;
56 (*tt.tt_checksum)(tt_ob, n);
62 for (p = tt_ob; p < tt_obp;) {
64 n = write(1, p, tt_obp - p);
67 if (errno != EWOULDBLOCK) {
68 /* can't deal with this */
90 ttwrite(const char *s, int n)
99 if (tt_obe - tt_obp < 2)
105 if (tt_obe - tt_obp < 3)
112 if (tt_obe - tt_obp < 4)
120 if (tt_obe - tt_obp < 5)
132 while ((m = tt_obe - tt_obp) == 0)
134 if ((m = tt_obe - tt_obp) > n)
136 memmove(tt_obp, s, m);