xref: /dragonfly/bin/sh/output.h (revision 6e278935)
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  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Berkeley and its contributors.
20  * 4. Neither the name of the University nor the names of its contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  *
36  *	@(#)output.h	8.2 (Berkeley) 5/4/95
37  * $FreeBSD: src/bin/sh/output.h,v 1.19 2010/11/20 14:14:52 jilles Exp $
38  */
39 
40 #ifndef OUTPUT_INCL
41 
42 #include <stdarg.h>
43 #include <stddef.h>
44 
45 struct output {
46 	char *nextc;
47 	int nleft;
48 	char *buf;
49 	int bufsize;
50 	short fd;
51 	short flags;
52 };
53 
54 extern struct output output; /* to fd 1 */
55 extern struct output errout; /* to fd 2 */
56 extern struct output memout;
57 extern struct output *out1; /* &memout if backquote, otherwise &output */
58 extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
59 			       &errout */
60 
61 void outcslow(int, struct output *);
62 void out1str(const char *);
63 void out1qstr(const char *);
64 void out2str(const char *);
65 void out2qstr(const char *);
66 void outstr(const char *, struct output *);
67 void outqstr(const char *, struct output *);
68 void outbin(const void *, size_t, struct output *);
69 void emptyoutbuf(struct output *);
70 void flushall(void);
71 void flushout(struct output *);
72 void freestdout(void);
73 void outfmt(struct output *, const char *, ...) __printflike(2, 3);
74 void out1fmt(const char *, ...) __printflike(1, 2);
75 void out2fmt_flush(const char *, ...) __printflike(1, 2);
76 void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
77 void doformat(struct output *, const char *, va_list) __printflike(2, 0);
78 int xwrite(int, const char *, int);
79 
80 #define outc(c, file)	(--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
81 #define out1c(c)	outc(c, out1);
82 #define out2c(c)	outcslow(c, out2);
83 
84 #define OUTPUT_INCL
85 #endif
86