1#!/bin/ksh 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License, Version 1.0 only 7# (the "License"). You may not use this file except in compliance 8# with the License. 9# 10# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11# or http://www.opensolaris.org/os/licensing. 12# See the License for the specific language governing permissions 13# and limitations under the License. 14# 15# When distributing Covered Code, include this CDDL HEADER in each 16# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17# If applicable, add the following below this CDDL HEADER, with the 18# fields enclosed by brackets "[]" replaced with your own identifying 19# information: Portions Copyright [yyyy] [name of copyright owner] 20# 21# CDDL HEADER END 22# 23# 24# Copyright (c) 1998 by Sun Microsystems, Inc. 25# All rights reserved. 26# 27# gsscred_db clean up script 28# 29# This file is used to remove duplicate entries from 30# the gsscred_db file. It is activated as a root cron 31# job once a day. It only performs cleanup when 32# the gsscred_db file has changed since last operation. 33 34FILE_TO_CLEAN=/etc/gss/gsscred_db 35CLEAN_TIME=/etc/gss/.gsscred_clean 36TMP_FILE=/etc/gss/gsscred_clean$$ 37 38trap "rm -f $TMP_FILE; exit" 0 1 2 3 13 15 39 40 41if [ -s $FILE_TO_CLEAN ] && [ $FILE_TO_CLEAN -nt $CLEAN_TIME ] 42then 43 44# 45# The file being sorted has the following format: 46# name uid comment 47# 48# We are trying to remove duplicate entries for the name 49# which may have different uids. Entries lower in the file 50# are newer since addition performs an append. We use cat -n 51# in order to preserve the order of the duplicate entries and 52# only keep the latest. We then sort on the name, and line 53# number (line number in reverse). The line numbers are then 54# removed and duplicate entries are cut out. 55# 56 cat -n $FILE_TO_CLEAN | sort -k 2,2 -k 1,1nr 2> /dev/null \ 57 | cut -f2- | \ 58 awk ' (NR > 1 && $1 != key) || NR == 1 { 59 key = $1; 60 print $0; 61 } 62 ' > $TMP_FILE 63 64 if [ $? -eq 0 ] && mv $TMP_FILE $FILE_TO_CLEAN; then 65# 66# update time stamp for this sort 67# 68 touch -r $FILE_TO_CLEAN $CLEAN_TIME 69 else 70 rm -f $TMP_FILE 71 fi 72fi 73