sh/output.h

   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  * $FreeBSD$
  34  */
  35
  36 #ifndef OUTPUT_INCL
  37
  38 #include <stdarg.h>
  39 #include <stddef.h>
  40
  41 struct output {
  42         char *nextc;
  43         int nleft;
  44         char *buf;
  45         int bufsize;
  46         short fd;
  47         short flags;
  48 };
  49
  50 extern struct output output; /* to fd 1 */
  51 extern struct output errout; /* to fd 2 */
  52 extern struct output memout;
  53 extern struct output *out1; /* &memout if backquote, otherwise &output */
  54 extern struct output *out2; /* &memout if backquote with 2>&1, otherwise
  55                                &errout */
  56
  57 void outcslow(int, struct output *);
  58 void out1str(const char *);
  59 void out1qstr(const char *);
  60 void out2str(const char *);
  61 void out2qstr(const char *);
  62 void outstr(const char *, struct output *);
  63 void outqstr(const char *, struct output *);
  64 void outbin(const void *, size_t, struct output *);
  65 void emptyoutbuf(struct output *);
  66 void flushall(void);
  67 void flushout(struct output *);
  68 void freestdout(void);
  69 int outiserror(struct output *);
  70 void outclearerror(struct output *);
  71 void outfmt(struct output *, const char *, ...) __printflike(2, 3);
  72 void out1fmt(const char *, ...) __printflike(1, 2);
  73 void out2fmt_flush(const char *, ...) __printflike(1, 2);
  74 void fmtstr(char *, int, const char *, ...) __printflike(3, 4);
  75 void doformat(struct output *, const char *, va_list) __printflike(2, 0);
  76 int 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