| 1 | /* Internal header for netgroup related functions. |
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| 2 | Copyright (C) 1996, 1997, 2004 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 18 | 02111-1307 USA. */ |
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| 19 | |
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| 20 | #ifndef _NETGROUP_H |
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| 21 | #define _NETGROUP_H 1 |
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| 22 | |
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| 23 | #include <nsswitch.h> |
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| 24 | |
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| 25 | /* A netgroup can consist of names of other netgroups. We have to |
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| 26 | track which netgroups were read and which still have to be read. */ |
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| 27 | struct name_list |
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| 28 | { |
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| 29 | struct name_list *next; |
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| 30 | char name[0]; |
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| 31 | }; |
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| 32 | |
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| 33 | |
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| 34 | /* Dataset for iterating netgroups. */ |
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| 35 | struct __netgrent |
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| 36 | { |
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| 37 | enum { triple_val, group_val } type; |
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| 38 | |
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| 39 | union |
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| 40 | { |
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| 41 | struct |
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| 42 | { |
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| 43 | const char *host; |
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| 44 | const char *user; |
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| 45 | const char *domain; |
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| 46 | } |
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| 47 | triple; |
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| 48 | |
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| 49 | const char *group; |
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| 50 | } val; |
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| 51 | |
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| 52 | /* Room for the data kept between the calls to the netgroup |
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| 53 | functions. We must avoid global variables. */ |
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| 54 | char *data; |
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| 55 | size_t data_size; |
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| 56 | union |
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| 57 | { |
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| 58 | char *cursor; |
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| 59 | unsigned long int position; |
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| 60 | }; |
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| 61 | int first; |
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| 62 | |
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| 63 | struct name_list *known_groups; |
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| 64 | struct name_list *needed_groups; |
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| 65 | |
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| 66 | /* This handle for the NSS data base is shared between all |
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| 67 | set/get/endXXXent functions. */ |
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| 68 | service_user *nip; |
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| 69 | }; |
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| 70 | |
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| 71 | |
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| 72 | /* The internal netgroup handling functions might be called from outside. */ |
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| 73 | extern int __internal_setnetgrent (const char *group, |
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| 74 | struct __netgrent *datap); |
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| 75 | extern void __internal_endnetgrent (struct __netgrent *datap); |
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| 76 | extern int __internal_getnetgrent_r (char **hostp, char **userp, |
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| 77 | char **domainp, struct __netgrent *datap, |
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| 78 | char *buffer, size_t buflen, int *errnop); |
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| 79 | |
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| 80 | #endif /* netgroup.h */ |
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