souppkgchk

#!/bin/sh
#this checks a slackware package contents for presence of libs/binaries containing libsoup
#if libsoup2 and libsoup3 are in same lib/binary it will fail to run, this will be flagged.
#it takes optional -v or -vv (verbose or extra verbose) and (required) a package name as a parameter
#
#this is free software. use at your own risk.
#Copyright 2024 Tim Dickson
#version 1.1
#
#see https://opensource.org/license/mit for license text.
#
if [ $# -eq 2 ]; then
  if [ "$1" = "-v" ]; then
    shift
    VERBOSE="on"
  elif [ "$1" = "-vv" ]; then
    shift
    VERBOSE="on2"
  fi
else
  VERBOSE="off"
fi
if [ $# -ne 1 ]; then
  echo "Usage: $0 [-v|-vv] <pkgname>"
  echo "reports if conflicting soup libs are in any libs or binaries in a package"
  echo "script looks in current directory and /tmp"
  echo "if -v is specified, the output is more verbose, and -vv is extra verbose"
  exit 1
fi
CWD=$(pwd)
TMPDIR=$(mktemp -d -t "souppkgchk.XXX")
trap "cleanup; exit 1" SIGINT    #cleanup temp directory if user ctrl-c's out of script
cd $TMPDIR
if [ -f $1 ]; then
  PKGNAME=$1
elif [ -f $CWD/$1 ]; then
  PKGNAME=$CWD/$1
elif [ -f /tmp/$1 ]; then  #try /tmp/
  PKGNAME=/tmp/$1
else
  echo "can't find package $1"
  exit 1
fi
tar -xzf $PKGNAME
#now loop through all files, identify executables and libs, and check for libsoup.
readarray -t stuff < <(tar -tzf $PKGNAME)
SP2CNT=0
SP3CNT=0
BADCNT=0
for i in "${stuff[@]}"; do  #we do it this way to handle file paths with spaces
  if [ "$VERBOSE" = "on2" ]; then
    echo "processing:$i"
  fi
  if [ "x$(file "$i"|awk -F": " '{print $2}'|awk '{print $1}')" = "xELF" -a $(file "$i"|grep statically|wc -l) -lt 1 ]; then
    #we have a binary file not statically linked, so check it for soup libs
    if [ "$VERBOSE" = "on2" ]; then
       echo "identified binary file $i"
    fi
    SOUP2=$(ldd "$i" 2>/dev/null|grep "libsoup-2"|wc -l)
    SOUP3=$(ldd "$i" 2>/dev/null|grep "libsoup-3"|wc -l)
    if [ "$SOUP2" -gt 0 -a "$SOUP3" -gt 0 ]; then
      echo "$i :contains both libsoup2 and libsoup3. this binary will fail to run."
      ((SP2CNT+=1)); ((SP3CNT+=1)); ((BADCNT+=1))
    elif [ "$SOUP2" -gt 0 ]; then
      ((SP2CNT+=1))
      if [ "$VERBOSE" != "off" ]; then
        echo "$i :contains libsoup2"
      fi
    elif [ "$SOUP3" -gt 0 ]; then
      ((SP3CNT+=1))
      if [ "$VERBOSE" != "off" ]; then
        echo "$i :contains libsoup3"
      fi
    else
      if [ "$VERBOSE" = "on2" ]; then
        echo "$i does not contain any links to libsoup"
      fi
    fi
  fi
done
if [ $SP2CNT -gt 0 ]; then
  if [ $SP2CNT -eq 1 ]; then
    echo "$SP2CNT file is linked to libsoup2"
  else
    echo "$SP2CNT files are linked to libsoup2"
  fi
fi
if [ $SP3CNT -gt 0 ]; then
  if [ $SP3CNT -eq 1 ]; then
    echo "$SP3CNT file is linked to libsoup3"
  else
    echo "$SP3CNT files are linked to libsoup3"
  fi
fi
if [ $BADCNT -gt 0 ]; then
  echo "$BADCNT executable(s)/lib(s) will fail to run due to linking to both versions of soup"
fi
#now clean up temp dir
cleanup() {  #function to remove temp directory and contents
cd $CWD
if [ "$TMPDIR" != "/" -a $(echo $TMPDIR|awk '{print substr($1,1,5)}') = "/tmp/" ]; then  #minimal sanity check
  rm -rf $TMPDIR
fi
}
cleanup