2 * config-grp.h - This file is part of the libc-8086/grp package for ELKS,
3 * Copyright (C) 1995, 1996 Nat Friedman <ndf@linux.mit.edu>.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the Free
17 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 * Define GR_SCALE_DYNAMIC if you want grp to dynamically scale its read buffer
27 * so that lines of any length can be used. On very very small systems,
28 * you may want to leave this undefined becasue it will make the grp functions
29 * somewhat larger (because of the inclusion of malloc and the code necessary).
30 * On larger systems, you will want to define this, because grp will _not_
31 * deal with long lines gracefully (they will be skipped).
33 #undef GR_SCALE_DYNAMIC
35 #ifndef GR_SCALE_DYNAMIC
37 * If scaling is not dynamic, the buffers will be statically allocated, and
38 * maximums must be chosen. GR_MAX_LINE_LEN is the maximum number of
39 * characters per line in the group file. GR_MAX_MEMBERS is the maximum
40 * number of members of any given group.
42 #define GR_MAX_LINE_LEN 128
43 /* GR_MAX_MEMBERS = (GR_MAX_LINE_LEN-(24+3+6))/9 */
44 #define GR_MAX_MEMBERS 11
46 #endif /* !GR_SCALE_DYNAMIC */
50 * Define GR_DYNAMIC_GROUP_LIST to make initgroups() dynamically allocate
51 * space for it's GID array before calling setgroups(). This is probably
52 * unnecessary scalage, so it's undefined by default.
54 #undef GR_DYNAMIC_GROUP_LIST
56 #ifndef GR_DYNAMIC_GROUP_LIST
58 * GR_MAX_GROUPS is the size of the static array initgroups() uses for
59 * its static GID array if GR_DYNAMIC_GROUP_LIST isn't defined.
61 #define GR_MAX_GROUPS 64
63 #endif /* !GR_DYNAMIC_GROUP_LIST */
65 #endif /* !_CONFIG_GRP_H */