/* $NetBSD: dribble.c,v 1.1.1.1 2016/01/14 00:11:29 christos Exp $ */ /* dribble.c -- dribble files for Info. Id: dribble.c,v 1.3 2004/04/11 17:56:45 karl Exp Copyright (C) 1993, 1998, 2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Written by Brian Fox (bfox@ai.mit.edu). */ #include "info.h" #include "dribble.h" /* When non-zero, it is a stream to write all input characters to for the duration of this info session. */ FILE *info_dribble_file = (FILE *)NULL; /* Open a dribble file named NAME, perhaps closing an already open one. This sets the global variable INFO_DRIBBLE_FILE to the open stream. */ void open_dribble_file (char *name) { /* Perhaps close existing dribble file. */ close_dribble_file (); /* Keystrokes can be non-printable characters, so we need binary I/O. */ info_dribble_file = fopen (name, FOPEN_WBIN); #if defined (HAVE_SETVBUF) if (info_dribble_file) # if defined (SETVBUF_REVERSED) setvbuf (info_dribble_file, _IONBF, (char *)NULL, 1); # else setvbuf (info_dribble_file, (char *)NULL, _IONBF, 1); # endif /* !SETVBUF_REVERSED */ #endif /* HAVE_SETVBUF */ } /* If there is a dribble file already open, close it. */ void close_dribble_file (void) { if (info_dribble_file) { fflush (info_dribble_file); fclose (info_dribble_file); info_dribble_file = (FILE *)NULL; } } /* Write some output to our existing dribble file. */ void dribble (unsigned char byte) { if (info_dribble_file) fwrite (&byte, sizeof (unsigned char), 1, info_dribble_file); }