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      1 #!/bin/sh
      2 #	$NetBSD: checkoldver,v 1.5 2024/05/29 13:35:12 christos Exp $
      3 #
      4 # Copyright (c) 2002 The NetBSD Foundation, Inc.
      5 # All rights reserved.
      6 #
      7 # This code is derived from software contributed to The NetBSD Foundation
      8 # by Christos Zoulas.
      9 #
     10 # Redistribution and use in source and binary forms, with or without
     11 # modification, are permitted provided that the following conditions
     12 # are met:
     13 # 1. Redistributions of source code must retain the above copyright
     14 #    notice, this list of conditions and the following disclaimer.
     15 # 2. Redistributions in binary form must reproduce the above copyright
     16 #    notice, this list of conditions and the following disclaimer in the
     17 #    documentation and/or other materials provided with the distribution.
     18 #
     19 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29 # POSSIBILITY OF SUCH DAMAGE.
     30 #
     31 # checkoldver [dir ...]
     32 #
     33 # Looks in the given directories for old shared libraries and lists them
     34 # Useful for: 'checkoldver /usr/lib | xargs rm -f'
     35 
     36 delete() {
     37 	obsol="$1.so"
     38 	if [ ! -z "$2" ]
     39 	then
     40 		obsol="$obsol.$2"
     41 	fi
     42 	if [ ! -z "$3" ]
     43 	then
     44 		obsol="$obsol.$3"
     45 	fi
     46 	if [ ! -z "$4" ]
     47 	then
     48 		obsol="$obsol.$4"
     49 	fi
     50 	printf "${PWD}/${obsol}\n"
     51 }
     52 
     53 comparelib() {
     54 	local name="${1%.so.*}"
     55 	local version="${1#"${name}"*.so.}"
     56 	local IFS=.
     57 	set -- $version
     58 
     59 	if [ -z "$libmajor" ]
     60 	then
     61 		libname="$name"
     62 		libmajor="$1"
     63 		libminor="$2"
     64 		libtiny="$3"
     65 		return
     66 	fi
     67 	if [ "$libmajor" -lt "$1" ]
     68 	then
     69 		delete "$libname" "$libmajor" "$libminor" "$libtiny"
     70 		libmajor="$1"
     71 		libminor="$2"
     72 		libtiny="$3"
     73 		return
     74 	elif [ "$1" -lt "$libmajor" ]
     75 	then
     76 		delete "$libname" "$1" "$2" "$3"
     77 		return
     78 	fi
     79 
     80 	if [ -z "$libminor" ]
     81 	then
     82 		return
     83 	fi
     84 	if [ "$libminor" -lt "$2" ]
     85 	then
     86 		delete "$libname" "$libmajor" "$libminor" "$libtiny"
     87 		libmajor="$1"
     88 		libminor="$2"
     89 		libtiny="$3"
     90 		return
     91 	elif [ "$2" -lt "$libminor" ]
     92 	then
     93 		delete "$libname" "$1" "$2" "$3"
     94 		return
     95 	fi
     96 
     97 	if [ -z "$libtiny" ]
     98 	then
     99 		return
    100 	fi
    101 	if [ "$libtiny" -lt "$3" ]
    102 	then
    103 		delete "$libname" "$libmajor" "$libminor" "$libtiny"
    104 		libmajor="$1"
    105 		libminor="$2"
    106 		libtiny="$3"
    107 		return
    108 	elif [ "$5" -lt "$libminor" ]
    109 	then
    110 		delete "$libname" "$1" "$2" "$3"
    111 		return
    112 	fi
    113 }
    114 
    115 processonedir() {
    116 	cd "$1"
    117 	for lib in lib*.so
    118 	do
    119 		lib="${lib#lib}"
    120 		lib="${lib%.so}"
    121 
    122 		libmajor=
    123 		libminor=
    124 		libtiny=
    125 		for link in lib$lib.so.[0-9]*.[0-9]*.[0-9]*
    126 		do
    127 			comparelib "$link"
    128 		done
    129 
    130 		libmajor=
    131 		libminor=
    132 		libtiny=
    133 		for link in lib$lib.so.[0-9]*.[0-9]*
    134 		do
    135 			comparelib "$link"
    136 		done
    137 
    138 		libmajor=
    139 		libminor=
    140 		libtiny=
    141 		for link in lib$lib.so.[0-9]*
    142 		do
    143 			comparelib "$link"
    144 		done
    145 	done
    146 }
    147 
    148 for i
    149 do
    150 	processonedir "$i"
    151 done
    152