sh/output.h

   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  *      @(#)output.h    8.2 (Berkeley) 5/4/95
  35  * $FreeBSD: head/bin/sh/output.h 326025 2017-11-20 19:49:47Z pfg $
  36  */
  37
  38 #ifndef OUTPUT_INCL
  39
  40 #include <stdarg.h>
  41 #include <stddef.h>
  42
  43 struct output {
  44         char *nextc;
  45         char *bufend;
  46         char *buf;
  47         int bufsize;
  48         short fd;
  49         short flags;
  50 };
  51
  52 extern struct output output; /* to fd 1 */
  53 extern struct output errout; /* to fd 2 */
  54 extern struct output memout;
  55 extern struct output *out1; /* &memout if backquote, otherwise &output */
  56 extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
  57                                &errout */
  58
  59 void outcslow(int, struct output *);
  60 void out1str(const char *);
  61 void out1qstr(const char *);
  62 void out2str(const char *);
  63 void out2qstr(const char *);
  64 void outstr(const char *, struct output *);
  65 void outqstr(const char *, struct output *);
  66 void outbin(const void *, size_t, struct output *);
  67 void emptyoutbuf(struct output *);
  68 void flushall(void);
  69 void flushout(struct output *);
  70 void freestdout(void);
  71 int outiserror(struct output *);
  72 void outclearerror(struct output *);
  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)->nextc == (file)->bufend ? (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