1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Kenneth Almquist.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef OUTPUT_INCL
36
37#include <stdarg.h>
38#include <stddef.h>
39#include <stdio.h>
40
41struct output {
42	char *nextc;
43	char *bufend;
44	char *buf;
45	int bufsize;
46	short fd;
47	short flags;
48};
49
50extern struct output output; /* to fd 1 */
51extern struct output errout; /* to fd 2 */
52extern struct output memout;
53extern struct output *out1; /* &memout if backquote, otherwise &output */
54extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
55			       &errout */
56
57void outcslow(int, struct output *);
58void out1str(const char *);
59void out1qstr(const char *);
60void out2str(const char *);
61void out2qstr(const char *);
62void outstr(const char *, struct output *);
63void outqstr(const char *, struct output *);
64void outbin(const void *, size_t, struct output *);
65void emptyoutbuf(struct output *);
66void flushall(void);
67void flushout(struct output *);
68void freestdout(void);
69int outiserror(struct output *);
70void outclearerror(struct output *);
71void outfmt(struct output *, const char *, ...) __printflike(2, 3);
72void out1fmt(const char *, ...) __printflike(1, 2);
73void out2fmt_flush(const char *, ...) __printflike(1, 2);
74void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
75void doformat(struct output *, const char *, va_list) __printflike(2, 0);
76FILE *out1fp(void);
77int xwrite(int, const char *, int);
78
79#define outc(c, file)	((file)->nextc == (file)->bufend ? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
80#define out1c(c)	outc(c, out1);
81#define out2c(c)	outcslow(c, out2);
82
83#define OUTPUT_INCL
84#endif
85