#!/bin/sh # # Dasygenis Minas : Script to check that all required dynamic link libraries are present # http://arch.ece.uowm.gr # # # This script aids in locating missing libraries for dynamic linking # When you upgrade a package, some times the old library is deleted, like # libperl.so.10 and a new library is installed, like libperl.so.11 . In this # case, programs that do require the libperl.so.10 will stop working [if they # are not rebuilt]. This script locates such situations and proposes a fix # by locating the new libraries and proposing the command to be executed. # # # # Install: # Put at cron a line @daily ( check_requisite_library_files.sh ) # also, you can execute it on demand. # Use -v for verbose mode [print dots] # # Execute: # ./check_requisite_library_files.sh doit # # License: Creative Common 3.0 with attribution # #TODO: Create a manpage from /usr/share/examples/mdoc/example.1 # # March, 2014 # November 2014: Added pkg support # December 2016: Allowed soft links to be scanned, because some times we put an execution link on /usr/local/bin version="017" # # Thank to everyone who contributes to this script: # log="/tmp/requisite_library_files.log.txt" if [ -f $log ] ; then rm $log fi #Originally, we believe that no missing files exist found_missing=0 ignore_files=" /usr/local/bin/scripts/network/www/stream/images /scripts/network/www/stream/images " directories=" /usr/local/bin /usr/local/sbin /usr/local/lib /usr/lib /usr/bin /usr/sbin /bin /sbin /lib " #Add extra path declerations... export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib/samba4/private:/usr/local/bin/scripts/messages/virtualpythonSMS/bin/ # Not currently user files_that_should_be_deleted=" /usr/src/contrib/gdb/include/ansidecl.h /usr/local/include/ansidecl.h " files_that_should_be_deleted=" " for ifile in $files_that_should_be_deleted do if [ -f "$ifile" ] ; then echo "***WARNING*** : File $ifile which is present on your system should be moved to /tmp [compilation problems may arise if present]" | tee -a $log fi done #if no output is given then no end line output_on_screen=0 #if we are going to print dots, then we need the last echo if [ "$#" -gt 0 ] ; then output_on_screen=1 fi # verbose=0 fix=0 #If user has specified -v, then we need dots if [ $# -ge 1 ] ; then if [ "$1" = "-v" -o "$2" = "-v" ] ; then echo "Verbose mode" verbose=1 fi if [ "$1" = "fix" -o "$2" = "fix" ] ; then if [ $verbose -eq 1 ]; then echo -n "FIXing mode" fi fix=1 fi fi #We check one - by - one every directory for x in $directories do #if folder is absent, just skip it if [ ! -d "$x" ] ; then continue fi #first lets check if we have a void link grp="|" for i in $ignore_files do grp="$grp grep -v $i | " done grp="$grp cat" void=`find $x -type l -a \! -exec test -e {} \; -print 2> /dev/null $grp ` if [ "$void" ] ; then echo " " | tee -a $log echo "Found void links, that should be removed:" | tee -a $log echo $void | tee -a $log if [ $fix -eq 1 ] ; then echo -n "Removing links: " | tee -a $log echo -n 3;sleep 1;echo -n 2;sleep 1;echo -n 1;sleep 1;echo 0 total=`echo $void | wc -w` icounter=1 for ifile in $void do echo "[ $icounter / $total ] $ifile" | tee -a $log sleep 1 rm $ifile icounter=`expr $icounter + 1` done note="End if fix parameter was 1" fi fi #We search for files and links to files find $x -type f -o -type l -print | while read i do # If user has given a command line parameter, print progress if [ "$verbose" -eq 1 ] ; then echo -n "." fi #if this is not a file go to next if [ ! -f "$i" -a ! -h "$1" ] ; then continue fi #Only shared files are checked #files that end in .a are ignored, like /usr/lib/libssp_nonshared.a #Don't process ".a" files if [ "$i" = "${i%.a}" ]; then status=$( file "$i" ) #if this is a text or link just set status NULL which will trigger the "continue" bellow #from status remove the first xxxxx part ( xxxxx : yyyyy) #case "${status#*:}" in *text*|*"link "*) status= ;; esac case "${status#*:}" in *text*) status= ;; esac fi #just skip the file if it is *text* or *lin* [ "$status" ] || continue #this is a file that uses shared libraries #To check for missing libraries, we examine the lines with => # [ such as libc.so.7 => /lib/libc.so.7] # and if in this line there is no / then we have a missing library # [ such as libXfont.so.1 => not found ] # sometimes we have some ldd output error [such as not dynamic, which # we mute it by redirecting it to /dev/null missing=$( ldd "$i" 2>/dev/null | awk '/=/ && $0!~"/" {print $1}' | grep -v 'linux-vdso.so.1' ) #Note, on previous line we want the full missing filename, and not #just the "not found" line which would be printed if we used -f'%p\n' if [ "$missing" ]; then #Ooops..we just found a missing library. Lift the flag. #WARNING: This is inside a | while.... so it wont be transfered to main found_missing=1 #we are going to print smt on the screen. So, the script outputs info. output_on_screen=1 echo " " | tee -a $log echo "WARNING: Missing library(-ies) for app: $i" | tee -a $log echo "--------------------------------------------------------------------" | tee -a $log if [ -x /usr/sbin/pkg ] ; then note="FreeBSD System" pkg which $i | tee -a $log pkg which $i > /dev/null 2>&1 if [ $? -eq 0 ] ; then echo "You can force reinstall the package that provided [$i] by issuing: pkg install -f `pkg which $i | awk '{print $NF}'`" fi fi if [ -x /usr/bin/dpkg ] ; then note="Linux System" origin=`dpkg -S $i| cut -f1 -d ":"` | tee -a $log echo "This was installed by: $origin " | tee -a $log echo "You can do a: apt-get install --reinstall $origin " | tee -a $log fi echo "=====================================================================" | tee -a $log #lets cut out the version string:libavresample.so.1.2.0=>libavresample.so basedll=`echo $i | sed -E 's/^(.*\.so).*$/\1/g'` #lets print all similar dlls if [ ! -z "${basedll}" ] ; then ls -l ${basedll}* fi echo "|+++++++++++++ MISSING LIBRARES +++++++++++++++++++++++++++++++++|" | tee -a $log #For file $i, we are going to grab the missing libraries at $j echo "$missing" | while read j do #extract the basename of the missing file #it deletes the longest match of * from the start to last / missingfile="${j##*/}" msg="WARNING: Missing Library for file: [$i] - Library name: [$j]" logger $msg echo $msg | tee -a $log echo "------->"$missingfile | tee -a $log #now $missingfile holds the name with dots, for example:libgcrypt.so.18 #we want to remove the version digits # #lets try to find similar #fix: -f 1-2 assumes name.type.version (2 dots), so we want #name.type and scrap version # # #Construct the base, by scraping out the version. We now have library.so base="${missingfile%%[$IFS]*}" #delete the .so* from the end, and put the .so. Thus, we constructed our base base="${base%.so*}.so" counter_of_suggestions=0 allsimilarfiles=$( locate "$base" | awk '!/(lib32|compat)/{print}' ) for similarfile in $allsimilarfiles do #if we do have a suggestion if [ ! -z "$similarfile" ] ; then similarbase="${similarfile%/*}" # if file still exists then it is valid choice if [ -f "$similarfile" ] ; then #Sometimes the lib file is located at the folder that is not picked up by ldconfig #so a suggestion: "ln -s /otherlib/library.so.10 /otherlib/library.so.10" is not valid missinglib=$j counter_of_suggestions=$(( $counter_of_suggestions + 1 )) if [ "$similarfile" != "${similarbase}/${missinglib}" ]; then echo "MaYbe${counter_of_suggestions}a: ln -s $similarfile ${similarbase}/${missinglib}" | tee -a $log else echo "MayBe${counter_of_suggestions}b: ln -s $similarfile ${similarbase}/${missinglib} --NOT SUGGESTED, seems ${similarbase} not in ldconfig path" | tee -a $log fi # if simlarbase is not /lib /usr/local/lib /usr/lib, then # the ldd may have trouble locating. In this case, do add # a secondary choise if [ "$similarbase" != "/lib" -a ! "$similarbase" != "/usr/lib" -a ! "$similarbase" != "/usr/local/lib" ] ; then counter_of_suggestions=$(( $counter_of_suggestions + 1 )) echo "MaybE${counter_of_suggestions}: ln -s $similarfile /usr/local/lib/${missinglib}" | tee -a $log fi #end if the file exists fi #if we do have a suggestion else echo "Sorry, no suggestions" | tee -a $log #end if we do have a suggestion fi done if [ -x /usr/bin/dpkg ]; then basemissing=`echo $j | cut -f 1 -d "."` data=`apt-cache search $basemissing` if [ ! -z "$data" ] ; then echo "----Possible Suggestions for $basemissing ----" | tee -a $log apt-cache search $basemissing echo "---- -------------------------------------- ----" | tee -a $log fi fi done note="we are done for every missing library" echo "---------- END FOR THIS FILE ---------------------------" | tee -a $log echo " " | tee -a $log fi done note="we are done for every file in that folder" done note="we are done for every folder" # print the last carriage-return for new line if [ ! "$output_on_screen" = "0" ] ; then if [ $verbose -eq 1 ]; then echo " " fi fi note="Have we raised the found_missing flag?" if [ "$found_missing" -eq 1 ] ; then echo " " echo "==> Please check log: $log" echo " " echo "Notice: A missing library was detected at this system during dasygenis automatic l-check. More details at the logfile." | tee -a $log | wall -g wheel fi exit