New upstream release 15.7a, fixing CVE-2009-014815-7a-1

1 files changed, 158 insertions, 95 deletions

diff --git a/ylwrap b/ylwrap
index 71e5225..102bd89 100755
--- a/ylwrap
+++ b/ylwrap
@@ -1,8 +1,10 @@
 #! /bin/sh
 # ylwrap - wrapper for lex/yacc invocations.
-#
-# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002 Free Software
-# Foundation, Inc.
+
+scriptversion=2005-05-14.22
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004, 2005
+#   Free Software Foundation, Inc.
 #
 # Written by Tom Tromey <tromey@cygnus.com>.
 #
@@ -18,30 +20,60 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
 
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
 # the same distribution terms that you use for the rest of that program.
 
-# Usage:
-#     ylwrap INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
-# * INPUT is the input file
-# * OUTPUT is file PROG generates
-# * DESIRED is file we actually want
-# * PROGRAM is program to run
-# * ARGS are passed to PROG
-# Any number of OUTPUT,DESIRED pairs may be used.
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+case "$1" in
+  '')
+    echo "$0: No files given.  Try \`$0 --help' for more information." 1>&2
+    exit 1
+    ;;
+  --basedir)
+    basedir=$2
+    shift 2
+    ;;
+  -h|--h*)
+    cat <<\EOF
+Usage: ylwrap [--help|--version] INPUT [OUTPUT DESIRED]... -- PROGRAM [ARGS]...
+
+Wrapper for lex/yacc invocations, renaming files as desired.
+
+  INPUT is the input file
+  OUTPUT is one file PROG generates
+  DESIRED is the file we actually want instead of OUTPUT
+  PROGRAM is program to run
+  ARGS are passed to PROG
+
+Any number of OUTPUT,DESIRED pairs may be used.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v|--v*)
+    echo "ylwrap $scriptversion"
+    exit $?
+    ;;
+esac
+
 
 # The input.
 input="$1"
 shift
 case "$input" in
- [\\/]* | ?:[\\/]*)
+  [\\/]* | ?:[\\/]*)
     # Absolute path; do nothing.
     ;;
- *)
+  *)
     # Relative path.  Make it absolute.
     input="`pwd`/$input"
     ;;
@@ -49,12 +81,12 @@ esac
 
 pairlist=
 while test "$#" -ne 0; do
-   if test "$1" = "--"; then
-      shift
-      break
-   fi
-   pairlist="$pairlist $1"
-   shift
+  if test "$1" = "--"; then
+    shift
+    break
+  fi
+  pairlist="$pairlist $1"
+  shift
 done
 
 # The program to run.
@@ -62,8 +94,8 @@ prog="$1"
 shift
 # Make any relative path in $prog absolute.
 case "$prog" in
- [\\/]* | ?:[\\/]*) ;;
- *[\\/]*) prog="`pwd`/$prog" ;;
+  [\\/]* | ?:[\\/]*) ;;
+  *[\\/]*) prog="`pwd`/$prog" ;;
 esac
 
 # FIXME: add hostname here for parallel makes that run commands on
@@ -75,86 +107,117 @@ mkdir $dirname || exit 1
 cd $dirname
 
 case $# in
- 0) $prog "$input" ;;
- *) $prog "$@" "$input" ;;
+  0) $prog "$input" ;;
+  *) $prog "$@" "$input" ;;
 esac
-status=$?
-
-if test $status -eq 0; then
-   set X $pairlist
-   shift
-   first=yes
-   # Since DOS filename conventions don't allow two dots,
-   # the DOS version of Bison writes out y_tab.c instead of y.tab.c
-   # and y_tab.h instead of y.tab.h. Test to see if this is the case.
-   y_tab_nodot="no"
-   if test -f y_tab.c || test -f y_tab.h; then
-      y_tab_nodot="yes"
-   fi
-
-   # The directory holding the input.
-   input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
-   # Quote $INPUT_DIR so we can use it in a regexp.
-   # FIXME: really we should care about more than `.' and `\'.
-   input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
-
-   while test "$#" -ne 0; do
-      from="$1"
-      # Handle y_tab.c and y_tab.h output by DOS
-      if test $y_tab_nodot = "yes"; then
-	 if test $from = "y.tab.c"; then
-	    from="y_tab.c"
-	 else
-	    if test $from = "y.tab.h"; then
-	       from="y_tab.h"
-	    fi
-	 fi
-      fi
-      if test -f "$from"; then
-         # If $2 is an absolute path name, then just use that,
-         # otherwise prepend `../'.
-         case "$2" in
-	   [\\/]* | ?:[\\/]*) target="$2";;
-	   *) target="../$2";;
-	 esac
-
-	 # Edit out `#line' or `#' directives.
-	 #
-	 # We don't want the resulting debug information to point at
-	 # an absolute srcdir; it is better for it to just mention the
-	 # .y file with no path.
-	 #
-	 # We want to use the real output file name, not yy.lex.c for
-	 # instance.
-	 #
-	 # We want the include guards to be adjusted too.
-	 FROM=`echo "$from" | sed \
-                 -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
-                 -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
-	 TARGET=`echo "$2" | sed \
-                 -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
-                 -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
-         sed "/^#/{s,$input_rx,,;s,$from,$2,;s,$FORM,$TO,;}" "$from" >"$target" ||
-            status=$?
+ret=$?
+
+if test $ret -eq 0; then
+  set X $pairlist
+  shift
+  first=yes
+  # Since DOS filename conventions don't allow two dots,
+  # the DOS version of Bison writes out y_tab.c instead of y.tab.c
+  # and y_tab.h instead of y.tab.h. Test to see if this is the case.
+  y_tab_nodot="no"
+  if test -f y_tab.c || test -f y_tab.h; then
+    y_tab_nodot="yes"
+  fi
+
+  # The directory holding the input.
+  input_dir=`echo "$input" | sed -e 's,\([\\/]\)[^\\/]*$,\1,'`
+  # Quote $INPUT_DIR so we can use it in a regexp.
+  # FIXME: really we should care about more than `.' and `\'.
+  input_rx=`echo "$input_dir" | sed 's,\\\\,\\\\\\\\,g;s,\\.,\\\\.,g'`
+
+  while test "$#" -ne 0; do
+    from="$1"
+    # Handle y_tab.c and y_tab.h output by DOS
+    if test $y_tab_nodot = "yes"; then
+      if test $from = "y.tab.c"; then
+    	from="y_tab.c"
       else
-	 # A missing file is only an error for the first file.  This
-	 # is a blatant hack to let us support using "yacc -d".  If -d
-	 # is not specified, we don't want an error when the header
-	 # file is "missing".
-	 if test $first = yes; then
-	    status=1
-	 fi
+    	if test $from = "y.tab.h"; then
+    	  from="y_tab.h"
+    	fi
+      fi
+    fi
+    if test -f "$from"; then
+      # If $2 is an absolute path name, then just use that,
+      # otherwise prepend `../'.
+      case "$2" in
+    	[\\/]* | ?:[\\/]*) target="$2";;
+    	*) target="../$2";;
+      esac
+
+      # We do not want to overwrite a header file if it hasn't
+      # changed.  This avoid useless recompilations.  However the
+      # parser itself (the first file) should always be updated,
+      # because it is the destination of the .y.c rule in the
+      # Makefile.  Divert the output of all other files to a temporary
+      # file so we can compare them to existing versions.
+      if test $first = no; then
+	realtarget="$target"
+	target="tmp-`echo $target | sed s/.*[\\/]//g`"
+      fi
+      # Edit out `#line' or `#' directives.
+      #
+      # We don't want the resulting debug information to point at
+      # an absolute srcdir; it is better for it to just mention the
+      # .y file with no path.
+      #
+      # We want to use the real output file name, not yy.lex.c for
+      # instance.
+      #
+      # We want the include guards to be adjusted too.
+      FROM=`echo "$from" | sed \
+            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
+            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
+      TARGET=`echo "$2" | sed \
+            -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'\
+            -e 's/[^ABCDEFGHIJKLMNOPQRSTUVWXYZ]/_/g'`
+
+      sed -e "/^#/!b" -e "s,$input_rx,," -e "s,$from,$2," \
+          -e "s,$FROM,$TARGET," "$from" >"$target" || ret=$?
+
+      # Check whether header files must be updated.
+      if test $first = no; then
+	if test -f "$realtarget" && cmp -s "$realtarget" "$target"; then
+	  echo "$2" is unchanged
+	  rm -f "$target"
+	else
+          echo updating "$2"
+          mv -f "$target" "$realtarget"
+        fi
+      fi
+    else
+      # A missing file is only an error for the first file.  This
+      # is a blatant hack to let us support using "yacc -d".  If -d
+      # is not specified, we don't want an error when the header
+      # file is "missing".
+      if test $first = yes; then
+        ret=1
       fi
-      shift
-      shift
-      first=no
-   done
+    fi
+    shift
+    shift
+    first=no
+  done
 else
-   status=$?
+  ret=$?
 fi
 
 # Remove the directory.
 cd ..
 rm -rf $dirname
 
-exit $status
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'write-file-hooks 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-end: "$"
+# End: