72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/* dribble.c -- Dribble files for Info. */
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/* This file is part of GNU Info, a program for reading online documentation
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stored in Info format.
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Copyright (C) 1993 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Written by Brian Fox (bfox@ai.mit.edu). */
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#include <stdio.h>
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#include "dribble.h"
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/* When non-zero, it is a stream to write all input characters to for the
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duration of this info session. */
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FILE *info_dribble_file = (FILE *)NULL;
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/* Open a dribble file named NAME, perhaps closing an already open one.
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This sets the global variable INFO_DRIBBLE_FILE to the open stream. */
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void
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open_dribble_file (name)
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char *name;
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{
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/* Perhaps close existing dribble file. */
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close_dribble_file ();
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info_dribble_file = fopen (name, "w");
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#if defined (HAVE_SETVBUF)
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if (info_dribble_file)
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# if defined (SETVBUF_REVERSED)
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setvbuf (info_dribble_file, _IONBF, (char *)NULL, 1);
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# else
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setvbuf (info_dribble_file, (char *)NULL, _IONBF, 1);
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# endif /* !SETVBUF_REVERSED */
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#endif /* HAVE_SETVBUF */
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}
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/* If there is a dribble file already open, close it. */
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void
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close_dribble_file ()
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{
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if (info_dribble_file)
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{
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fflush (info_dribble_file);
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fclose (info_dribble_file);
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info_dribble_file = (FILE *)NULL;
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}
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}
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/* Write some output to our existing dribble file. */
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void
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dribble (byte)
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unsigned char byte;
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{
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if (info_dribble_file)
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fwrite (&byte, sizeof (unsigned char), 1, info_dribble_file);
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}
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