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      1 #!/bin/sh
      2 #	$NetBSD: checkver,v 1.18 2021/12/05 08:09:30 msaitoh Exp $
      3 #
      4 # Copyright (c) 1998 The NetBSD Foundation, Inc.
      5 # All rights reserved.
      6 #
      7 # This code is derived from software contributed to The NetBSD Foundation
      8 # by Eric Haszlakiewicz.
      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 
     32 #--------------------------------------------------------------------#
     33 # checkver - 
     34 #	Check for libraries that appear to be newer than the
     35 #	one we're about to install.
     36 #
     37 # checkver [-q] [-v shlib_version_file] -d [installedlibdir [library name]]"
     38 # checkver [-q] [-v shlib_version_file] -s [setlistdir [library name]]"
     39 # checkver [-q] [-v shlib_version_file] -f liblistfile [library name]"
     40 #
     41 # One of -d, -s or -f must be specified.
     42 #
     43 # all: If library name is not specified it is assumed to
     44 #	be the name of the current directory.
     45 #
     46 # -d: Checks the version against the installed libraries.
     47 #	If no further arguments are given "/usr/lib" is
     48 #	used as the location of installed libraries.
     49 #
     50 # -s: Checks the version against the sets.  If no argument
     51 #	follows the sets directory defaults to "/usr/src/distrib/sets/lists".
     52 #	The directory may be specified as either the top of the
     53 #	source tree or as the lists directory.
     54 #
     55 # -f: Checks the version against the provided list.  A filename
     56 #	must be supplied.
     57 #
     58 # -v: Specify the filename of the shlib_version file.  Defaults
     59 #     to "./shlib_version".
     60 #
     61 # This script produces no output if all library version are not
     62 # large than the source version.  If an installed library with a
     63 # version greater than the source is found, checkver prints a
     64 # header and a list of the names of the offending installed libraries.
     65 #
     66 # The header may be suppressed by passing "-q" as the first argument.
     67 #
     68 
     69 TMP=/tmp/checkver.$$
     70 PROG="$(basename "$0")"
     71 # Can't trap 11 (SEGV) in the Real Bourne Shell, since it uses it for
     72 # internal malloc!
     73 trap "exit 2" 1 2 3 4 5 6 7 8 10 12 13 14 15
     74 trap "[ -d $TMP ] && rm -rf $TMP" 0
     75 
     76 Usage() {
     77 cat << EOF 1>&2
     78 Usage: $PROG [-q] [-v version_file] -d [installedlibdir [library name]]
     79        $PROG [-q] [-v version_file] -s [setlistdir [library name]]
     80        $PROG [-q] [-v version_file] -f liblistfile [library name]
     81        $PROG is a script that looks for installed libraries with
     82        versions greater than that in the version file.
     83        For more information, read the comments.
     84 EOF
     85 	exit 1
     86 }
     87 
     88 basedir=/usr/src
     89 setsdir=$basedir/distrib/sets/lists
     90 libdir=/usr/lib
     91 shlib_version=./shlib_version
     92 
     93 error=0
     94 quiet=0
     95 usedir=0
     96 usefile=0
     97 usesets=0
     98 CWD=$(pwd)
     99 : ${AWK:=awk}
    100 
    101 fixone() {
    102 	eval $(${AWK} -v 'LIB=$1' '
    103 BEGIN {
    104 	gsub(".*\.so\.", "", LIB);
    105 	split(LIB, VER, ".");
    106 	printf("local instmajor=%d\n", V[1] + 0);
    107 	printf("local instminor=%d\n", V[2] + 0);
    108 	printf("local instteeny=%d\n", V[3] + 0);
    109 }')
    110 	local ms="The following libraries have versions greater than the source"
    111 
    112 	# If they're greater than the source, complain.
    113 	if [ "0$major" -eq "0$instmajor" ]; then
    114 		if [ "0$minor" -eq "0$instminor" ]; then
    115 			if [ "0$teeny" -lt "0$instteeny" ]; then
    116 				if [ $error -eq 0 -a $quiet -eq 0 ]; then
    117 					echo "$ms" 1>&2
    118 				fi
    119 				echo $1 1>&2
    120 				error=1
    121 			fi
    122 		elif [ "0$minor" -lt "0$instminor" ]; then
    123 			if [ $error -eq 0 -a $quiet -eq 0 ]; then
    124 				echo "$ms" 1>&2
    125 			fi
    126 			echo $1 1>&2
    127 			error=1
    128 		fi
    129 	elif [ "0$major" -lt "0$instmajor" ]; then
    130 		if [ $error -eq 0 -a $quiet -eq 0 ]; then
    131 			echo "$ms" 1>&2
    132 		fi
    133 		echo $1 1>&2
    134 		error=1
    135 	fi
    136 }
    137 
    138 while getopts df:shqv: f; do
    139 	case $f in
    140 	d)	usedir=1 
    141 		if [ $usefile -eq 1 -o $usesets -eq 1 ]; then
    142 			Usage
    143 		fi;;
    144 	f)	usefile=1; arg1=$OPTARG
    145 		if [ $usedir -eq 1 -o $usesets -eq 1 ]; then
    146 			Usage 
    147 		fi;;
    148 	s)	usesets=1 
    149 		if [ $usedir -eq 1 -o $usefile -eq 1 ]; then
    150 			Usage
    151 		fi;;
    152 	v)	shlib_version=$OPTARG;;
    153 	q)	quiet=1;;
    154 	*)	Usage;;
    155 	esac
    156 done
    157 
    158 shift $(($OPTIND - 1))
    159 
    160 if [ $usedir -eq 0 -a $usefile -eq 0 -a $usesets -eq 0 ]; then
    161 	Usage
    162 fi
    163 
    164 if [ $usefile -eq 1 ]; then
    165 	LIBLIST="$arg1"
    166 else
    167 	if ! mkdir -m 0700 $TMP; then
    168 		echo "$PROG: Unable to create temp directory." 1>&2
    169 		exit 2
    170 	fi
    171 	LIBLIST=$TMP/libs.lst
    172 fi
    173 
    174 # Build list from the installed libraries.
    175 if [ $usedir -eq 1 ]; then
    176 	if [ -n "$1" ]; then
    177 		libdir="$1"
    178 	fi
    179 	for f in $libdir; do
    180 		ls $f/lib*.so.*.*
    181 	done > $LIBLIST 2> /dev/null
    182 fi
    183 
    184 # Build list from set lists.  Parameter may be either
    185 # the "lists" directory or the top of the source tree.
    186 if [ $usesets -eq 1 ]; then
    187 	if [ -n "$1" ]; then
    188 		setsdir="$1"
    189 		if [ -d "$setsdir/distrib/sets/lists" ]; then
    190 			setsdir="$setsdir/distrib/sets/lists"
    191 		fi
    192 	fi
    193 	(cd $setsdir;
    194 	 cat */[a-z]* |
    195 	 grep '^./usr/lib/lib.*\.so\.[0-9][0-9]*\.[0-9][0-9]*' |
    196 	 sort -u > $LIBLIST)
    197 fi
    198 
    199 #
    200 # The file $LIBLIST now contains a list of libraries.
    201 #
    202 if [ -z "$2" ]; then
    203 	makefile=$CWD/Makefile
    204 	libname=$(grep '^LIB=' $makefile | sed -e 's/^LIB=[[:space:]]*//')
    205 
    206 	# Assume the library name is the name of the current directory.
    207 	if [ -z "$libname" ]; then
    208 		libname=$(basename $CWD)
    209 	fi
    210 else
    211 	    libname="$2"
    212 fi
    213 echo $libname | grep "^lib" 1>&2 2> /dev/null
    214 if [ $? != 0 ]; then
    215 	libname="lib$libname"
    216 fi
    217 
    218 
    219 if [ ! -f $shlib_version ]; then
    220 	echo "$PROG: unable to find $shlib_version" 1>&2
    221 	exit 2
    222 fi
    223 
    224 # Grab major and minor numbers from the source.
    225 . $shlib_version
    226 
    227 if [ -z "$minor" -o -z "$major" ]; then
    228 	echo "$PROG: $shlib_version doesn't contain the version." 1>&2
    229 	exit 2
    230 fi
    231 
    232 # Find every shared object library with the same base name.
    233 for instlib in $(grep $libname.so "$LIBLIST"); do
    234 	# Grab the major and minor from the installed library.
    235 	fixone "$instlib"
    236 done
    237 
    238 exit $error
    239