a44e4d1407
program parses the /etc/netgroup file into netgroup.byuser and netgroup.byhost format for NIS. I used hash tables to store the initial netgroup data in memory and to construct the 'reverse' netgroup output. It seems just as fast as the SunOS revnetgroup, which is surprising considering this is my first attempt at using hash tables in a real application. :) Note that I canibalized a large chunk of getnetgrent.c to save myself from having to write my own netgroup parsing functions.
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* Copyright (c) 1995
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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/* Groupname entry hung off a member_entry node. */
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struct grouplist {
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char *groupname;
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struct grouplist *next;
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};
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/* Entry in the cooked member list hash table. */
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struct member_entry {
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char *key;
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char *domain;
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struct grouplist *groups;
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struct member_entry *next;
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};
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/* Entry in the raw netgroup table. */
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struct group_entry {
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char *key;
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char *data;
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struct grps *groups;
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struct group_entry *next;
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};
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/* Table size (chosen arbitrarily). Not too big, not too small. */
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#define TABLESIZE 256
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#define HASH_MASK 0x000000FF
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