|
171
|
1 /* dribble.c -- Dribble files for Info. */ |
|
|
2 |
|
|
3 /* This file is part of GNU Info, a program for reading online documentation |
|
|
4 stored in Info format. |
|
|
5 |
|
|
6 Copyright (C) 1993 Free Software Foundation, Inc. |
|
|
7 |
|
|
8 This program is free software; you can redistribute it and/or modify |
|
|
9 it under the terms of the GNU General Public License as published by |
|
|
10 the Free Software Foundation; either version 2, or (at your option) |
|
|
11 any later version. |
|
|
12 |
|
|
13 This program is distributed in the hope that it will be useful, |
|
|
14 but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
|
16 GNU General Public License for more details. |
|
|
17 |
|
|
18 You should have received a copy of the GNU General Public License |
|
|
19 along with this program; if not, write to the Free Software |
|
|
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
|
|
21 |
|
|
22 Written by Brian Fox (bfox@ai.mit.edu). */ |
|
|
23 |
|
1242
|
24 #ifdef HAVE_CONFIG_H |
|
|
25 #include <config.h> |
|
|
26 #endif |
|
|
27 |
|
171
|
28 #include <stdio.h> |
|
|
29 #include "dribble.h" |
|
|
30 |
|
|
31 /* When non-zero, it is a stream to write all input characters to for the |
|
|
32 duration of this info session. */ |
|
|
33 FILE *info_dribble_file = (FILE *)NULL; |
|
|
34 |
|
|
35 /* Open a dribble file named NAME, perhaps closing an already open one. |
|
|
36 This sets the global variable INFO_DRIBBLE_FILE to the open stream. */ |
|
|
37 void |
|
|
38 open_dribble_file (name) |
|
|
39 char *name; |
|
|
40 { |
|
|
41 /* Perhaps close existing dribble file. */ |
|
|
42 close_dribble_file (); |
|
|
43 |
|
|
44 info_dribble_file = fopen (name, "w"); |
|
|
45 |
|
|
46 #if defined (HAVE_SETVBUF) |
|
|
47 if (info_dribble_file) |
|
|
48 # if defined (SETVBUF_REVERSED) |
|
|
49 setvbuf (info_dribble_file, _IONBF, (char *)NULL, 1); |
|
|
50 # else |
|
|
51 setvbuf (info_dribble_file, (char *)NULL, _IONBF, 1); |
|
|
52 # endif /* !SETVBUF_REVERSED */ |
|
|
53 #endif /* HAVE_SETVBUF */ |
|
|
54 } |
|
|
55 |
|
|
56 /* If there is a dribble file already open, close it. */ |
|
|
57 void |
|
|
58 close_dribble_file () |
|
|
59 { |
|
|
60 if (info_dribble_file) |
|
|
61 { |
|
|
62 fflush (info_dribble_file); |
|
|
63 fclose (info_dribble_file); |
|
|
64 info_dribble_file = (FILE *)NULL; |
|
|
65 } |
|
|
66 } |
|
|
67 |
|
|
68 /* Write some output to our existing dribble file. */ |
|
|
69 void |
|
|
70 dribble (byte) |
|
|
71 unsigned char byte; |
|
|
72 { |
|
|
73 if (info_dribble_file) |
|
|
74 fwrite (&byte, sizeof (unsigned char), 1, info_dribble_file); |
|
|
75 } |
