1 /* 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>. 4 * 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. 9 * 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. 14 * 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. 18 * 19 */ 20 21 22 #ifndef _CONFIG_GRP_H 23 #define _CONFIG_GRP_H 24 25 /* 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). 32 */ 33 #define GR_SCALE_DYNAMIC 34 35 #ifndef GR_SCALE_DYNAMIC 36 /* 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. 41 */ 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 45 46 #endif /* !GR_SCALE_DYNAMIC */ 47 48 49 /* 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. 53 */ 54 #undef GR_DYNAMIC_GROUP_LIST 55 56 #ifndef GR_DYNAMIC_GROUP_LIST 57 /* 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. 60 */ 61 #define GR_MAX_GROUPS 64 62 63 #endif /* !GR_DYNAMIC_GROUP_LIST */ 64 65 #endif /* !_CONFIG_GRP_H */ 66