#! /bin/sh
# quote.test - make sure that shell metacharacters do not blow up libtool

# Test script header.
need_prefix=no
if test -z "$srcdir"; then
  srcdir=`echo "$0" | sed 's%/[^/]*$%%'`
  test "$srcdir" = "$0" && srcdir=.
  test "${VERBOSE+set}" != "set" && VERBOSE=yes
fi
. $srcdir/defs || exit 1

# Do the torture test.
status=0

echo=echo
if test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then :
else
  # The Solaris, AIX, and Digital Unix default echo programs unquote
  # backslashes.  This makes it impossible to quote backslashes using
  #   echo "$something" | sed 's/\\/\\\\/g'
  #
  # So, first we look for a working echo in the user's PATH.
  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
  for dir in $PATH /usr/ucb; do
    if test -f $dir/echo && test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t'; then
      echo="$dir/echo"
      break
    fi
  done
  IFS="$save_ifs"

  if test "X$echo" = Xecho; then
    # We didn't find a better echo, so look for alternatives.
    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t'; then
      # This shell has a builtin print -r that does the trick.
      echo='print -r'
    elif test -f /bin/ksh && test "X$CONFIG_SHELL" != X/bin/ksh; then
      # If we have ksh, try running $0 again with it.
      CONFIG_SHELL=/bin/ksh
      export CONFIG_SHELL
      exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
    else
      # Try using printf.
      echo='printf %s\n'
      if test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then :
      else
        # Oops.  We lost completely, so just stick with echo.
        echo=echo
      fi
    fi
  fi
fi

# Extract $wl from the libtool configuration
eval `$libtool --config | grep '^wl='`

for mode in compile link install; do
  $echo "== $mode mode"

  # Unfortunately, without an array data type, it is nearly impossible
  # to protect libtool from metacharacters in filenames.  So, we just
  # try metacharacters in the options it needs to pass to other programs.

  # preargs and postargs need to go through libtool unmodified.
  case "$mode" in
  compile)
    preargs="$CC -c"
    preflag=
    match_preflag=
    flag="-DVAR="
    postargs="foo.c"
    ;;

  link)
    preargs="$CC -o hell -g -O"
    preflag=-Wl,
    match_preflag="$wl"
    flag="-someflag="
    postargs="foo.o"
    ;;

  install)
    preargs="install -c"
    preflag=
    match_preflag=
    flag="--something="
    postargs="hell /usr/local/bin/hell"
    ;;
  esac

  # Trivial.
  $echo "= trying: no quoting"
  result=`$libtool -n --mode=$mode $preargs ${preflag}"${flag}test" $postargs` || status=1
  # We used to have the contents of $match in the case statement,
  # without an intermediate variable, but it would fail on at least
  # Solaris' and HP-UX's /bin/sh.  Ugh!
  # We must nost attempt to match $preargs in the output, because libtool
  # may modify them.  For example, on Cygwin, ``libtool --mode=link gcc -o
  # foo foo.o''  becomes ``gcc -o foo.exe foo.o''.
  match="${match_preflag}${flag}test "
  case "$result" in
  *"$match"*)
    $echo "= passed: $result"
    ;;
  *)
    $echo "= failed: $result"
    status=1
    ;;
  esac

  # Metacharacters that should be backslashified.
  for mchar in \\ \" \` \$; do
    $echo "= trying: \\$mchar quoting"
    result=`$libtool -n --mode=$mode $preargs ${preflag}"${flag}${mchar}test${mchar}" $postargs` || status=1
    match="${match_preflag}${flag}\\${mchar}test\\${mchar} "
    alt_match="${match_preflag}\"${flag}\\${mchar}test\\${mchar}\" "
    case "$result" in
    *"$match"*)
      $echo "= passed: $result"
      ;;
    *"$alt_match"*)
      $echo "= passed (harmless ksh bug): $result"
      ;;
    *)
      $echo "= failed: $result"
      status=1
      ;;
    esac
  done

  # Metacharacters that should be double quoted.
  for mchar in "[" "]" "~" "#" "^" "&" "*" "(" ")" "{" "}" "|" ";" "<" ">" "?" \
      "'" " " "	"; do

    $echo "= trying: \"$mchar\" quoting"
    result=`$libtool -n --mode=$mode $preargs ${preflag}"${flag}${mchar}test${mchar}" $postargs` || status=1
    match="${match_preflag}\"${flag}${mchar}test${mchar}\" "
    case "$result" in
    *"$match"*)
      $echo "= passed: $result"
      ;;
    *)
      $echo "= failed: $result"
      status=1
      ;;
    esac
  done
done

exit $status