output.h revision 331722 
1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Kenneth Almquist.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	@(#)output.h	8.2 (Berkeley) 5/4/95
33 * $FreeBSD: stable/11/bin/sh/output.h 331722 2018-03-29 02:50:57Z eadler $
34 */
35
36#ifndef OUTPUT_INCL
37
38#include <stdarg.h>
39#include <stddef.h>
40
41struct output {
42	char *nextc;
43	int nleft;
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);
76int xwrite(int, const char *, int);
77
78#define outc(c, file)	(--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
79#define out1c(c)	outc(c, out1);
80#define out2c(c)	outcslow(c, out2);
81
82#define OUTPUT_INCL
83#endif
84