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output.h revision 1.26 
      1 /*	$NetBSD: output.h,v 1.26 2017/11/19 03:23:01 kre Exp $	*/
      2 
      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  *	@(#)output.h	8.2 (Berkeley) 5/4/95
     35  */
     36 
     37 #ifndef OUTPUT_INCL
     38 
     39 #include <stdarg.h>
     40 
     41 struct output {
     42 	char *nextc;
     43 	int nleft;
     44 	int bufsize;
     45 	char *buf;
     46 	short fd;
     47 	short flags;
     48 	struct output *chain;
     49 };
     50 
     51 /* flags for ->flags */
     52 #define OUTPUT_ERR	0x01		/* error occurred on output */
     53 #define OUTPUT_CLONE	0x02		/* this is a clone of another */
     54 
     55 extern struct output output;
     56 extern struct output errout;
     57 extern struct output memout;
     58 extern struct output *out1;
     59 extern struct output *out2;
     60 extern struct output *outx;
     61 
     62 void open_mem(char *, int, struct output *);
     63 void out1str(const char *);
     64 void out2str(const char *);
     65 void outxstr(const char *);
     66 void outstr(const char *, struct output *);
     67 void out2shstr(const char *);
     68 void outxshstr(const char *);
     69 void outshstr(const char *, struct output *);
     70 void emptyoutbuf(struct output *);
     71 void flushall(void);
     72 void flushout(struct output *);
     73 void freestdout(void);
     74 void outfmt(struct output *, const char *, ...) __printflike(2, 3);
     75 void out1fmt(const char *, ...) __printflike(1, 2);
     76 #ifdef DEBUG
     77 void debugprintf(const char *, ...) __printflike(1, 2);
     78 #endif
     79 void fmtstr(char *, size_t, const char *, ...) __printflike(3, 4);
     80 void doformat(struct output *, const char *, va_list) __printflike(2, 0);
     81 int xwrite(int, char *, int);
     82 int xioctl(int, unsigned long, char *);
     83 void xtracefdsetup(int);
     84 void xtrace_clone(int);
     85 void xtrace_pop(void);
     86 
     87 #define outc(c, file)	(--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
     88 #define out1c(c)	outc(c, out1)
     89 #define out2c(c)	outc(c, out2)
     90 #define outxc(c)	outc(c, outx)
     91 
     92 #define OUTPUT_INCL
     93 #endif
     94