A script for use when upgrading an installed system from aout to

elf.

tools/tools/upgrade/move_aout_libs.sh

@@ -0,0 +1,137 @@
+#!/bin/sh
+#
+#	$Id$
+# 
+# Search for a.out libraries and move them to an aout subdirectory of
+# the elf library directory.
+#
+# The arguments are the directories to search.
+#
+libdirs="$*"
+
+# Create a temporary tool to get the timestamp of libraries. No, I don't
+# want to use perl or whatever.
+create_get_time_stamp ( )
+{
+	echo "#include <stdio.h>" > /tmp/get_time_stamp.c
+	echo "#include <sys/stat.h>" >> /tmp/get_time_stamp.c
+	echo "int main(int argc, char *argv[]) {" >> /tmp/get_time_stamp.c
+	echo "int ierr; struct stat fs;" >> /tmp/get_time_stamp.c
+	echo "if ((ierr = stat(argv[1],&fs)) == 0)" >> /tmp/get_time_stamp.c
+	echo "printf(\"%ld\n\",(long) fs.st_mtime);" >> /tmp/get_time_stamp.c
+	echo "return (ierr); }" >> /tmp/get_time_stamp.c
+	gcc -o /tmp/get_time_stamp /tmp/get_time_stamp.c
+	rm /tmp/get_time_stamp.c
+	return
+}
+
+# Move an a.out library to the aout subdirectory of the elf directory.
+move_file ( ) 
+{
+	if test -d $dir/aout; then
+	else
+		echo "Creating directory $dir/aout"
+		mkdir $dir/aout
+		ldconfig -m $dir/aout
+	fi
+	fname=${file#$dir/}
+	if test -f $dir/aout/$fname; then
+		if test -x /tmp/get_time_stamp; then
+		else
+			create_get_time_stamp
+		fi
+		t1=`/tmp/get_time_stamp $dir/aout/$fname`
+		t2=`/tmp/get_time_stamp $file`
+		if test $t1 -gt $t2; then
+			echo $file is older than $dir/aout/$fname
+			answer=""
+			while test "$answer" != "y" -a "$answer" != "n"; do
+				read -p "OK to delete the older file? (y/n) " answer
+			done
+			if test $answer = "y"; then
+				echo Deleting $file
+				rm $file
+			else
+				echo "You need to move $file out of $dir because that's an elf directory"
+			fi
+		else
+			echo $dir/aout/$fname is older than $file
+			answer=""
+			while test "$answer" != "y" -a "$answer" != "n"; do
+				read -p "OK to overwrite the older file? (y/n) " answer
+			done
+			if test $answer = "y"; then
+				echo Overwriting $dir/aout/$fname with $file
+				mv $file $dir/aout/$fname
+				ldconfig -R
+			else
+				echo "You need to move $file out of $dir because that's an elf directory"
+			fi
+		fi
+	else
+		echo Move $fname from $dir to $dir/aout
+		mv $file $dir/aout/$fname
+		ldconfig -R
+	fi
+	return
+}
+
+# Given a list of files in a directory, find those that are a.out
+# libraries and move them.
+move_if_aout ( ) 
+{
+	# Check each library
+	for file in $files
+	do
+		# Don't touch symbolic links yet. It's not clear how
+		# they should be handled.
+		if test -h $file; then
+		else
+			# Check that this is a normal file.
+			if test -f $file; then
+				# Identify the file by magic
+				filemagic=`file $file`
+
+				# Check if the file is an a.out library
+				if test "$filemagic" = "$file: $aoutmagic"; then
+					# Move the a.out library
+					move_file
+				fi
+			fi
+		fi
+	done
+	return
+}
+
+# Only search the directories specified.
+for dir in $libdirs
+do
+	# Check that the directory actually exists. There is no point
+	# searching missing directories.
+	if test -d $dir; then
+		echo "Searching library directory $dir for a.out libraries..."
+
+		# Get a list of archive libraries.
+		files=`ls $dir/*.a 2> /dev/null`
+
+		# a.out archive libraries look like this:
+		aoutmagic="current ar archive random library"
+
+		# Move each a.out archive library:
+		move_if_aout
+
+		# Get a list of shared libraries
+		files=`ls $dir/*.so.*.* 2> /dev/null`
+
+		# a.out shared libraries look like this:
+		aoutmagic="FreeBSD/i386 compact demand paged shared library not stripped"
+
+		# Move each a.out shared library:
+		move_if_aout
+	fi
+done
+
+# If we created the time stamp program, delete it:
+if test -x /tmp/get_time_stamp; then
+	rm /tmp/get_time_stamp
+fi