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8500b0caba
* nis/nss_nis/nis-netgrp.c: Remove locking by using data in struct __netgrent object passed in instead of global variables. Optimize. * nis/nss_nisplus/nisplus-netgrp.c: Remove locking by using data in struct __netgrent object passed in instead of global variables. * inet/netgroup.h (struct __netgrent): Add service_user field. Move cursor in anonymous union, add new field location to that union. * inet/getnetgrent_r.c: Extensive rewrite to really enable concurrent uset of set/get/endnetgrent and innetgr.
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* Internal header for netgroup related functions.
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Copyright (C) 1996, 1997, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _NETGROUP_H
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#define _NETGROUP_H 1
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#include <nsswitch.h>
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/* A netgroup can consist of names of other netgroups. We have to
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track which netgroups were read and which still have to be read. */
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struct name_list
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{
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struct name_list *next;
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char name[0];
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};
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/* Dataset for iterating netgroups. */
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struct __netgrent
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{
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enum { triple_val, group_val } type;
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union
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{
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struct
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{
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const char *host;
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const char *user;
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const char *domain;
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}
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triple;
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const char *group;
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} val;
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/* Room for the data kept between the calls to the netgroup
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functions. We must avoid global variables. */
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char *data;
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size_t data_size;
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union
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{
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char *cursor;
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unsigned long int position;
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};
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int first;
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struct name_list *known_groups;
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struct name_list *needed_groups;
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/* This handle for the NSS data base is shared between all
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set/get/endXXXent functions. */
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service_user *nip;
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};
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/* The internal netgroup handling functions might be called from outside. */
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extern int __internal_setnetgrent (const char *group,
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struct __netgrent *datap);
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extern void __internal_endnetgrent (struct __netgrent *datap);
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extern int __internal_getnetgrent_r (char **hostp, char **userp,
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char **domainp, struct __netgrent *datap,
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char *buffer, size_t buflen, int *errnop);
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#endif /* netgroup.h */
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