#!/usr/bin/perl

#############################################################################

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#######################################################################

#

# A script for setting binary capabilities based on .pkg file contents.

#

#######################################################################

sub Usage() {

    print("This script can be used to set capabilities of all binaries\n");

    print("specified for deployment in a .pkg file.\n");

    print("If no capabilities are given, the binaries will be given the\n");

    print("\nE.g. patch_capabilities.pl myapp_template.pkg release-armv5 \"All -TCB\"\n");

    exit();

}

# If arguments were given to the script,

if (@ARGV)

{

    # Parse the first given script argument as a ".pkg" file name.

    my $pkgFileName = shift(@ARGV);

    # These variables will only be set for template .pkg files.

    my $target;

    my $platform;

    # Check if using template .pkg and set target/platform variables

    if (($pkgFileName =~ m|_template\.pkg$|i) && -r($pkgFileName))

    {

        my $targetplatform;

        {

            Usage();

        }

        my @tmpvalues = split('-', $targetplatform);

        $target = $tmpvalues[0];

        $platform = $tmpvalues[1];

        # Convert visual target to real target (debug->udeb and release->urel)

        $target =~ s/debug/udeb/i;

        $target =~ s/release/urel/i;

    }

    # If the specified ".pkg" file exists (and can be read),

    if (($pkgFileName =~ m|\.pkg$|i) && -r($pkgFileName))

    {

        # If there are more arguments given, parse them as capabilities.

        if (@ARGV)

        {

            while (@ARGV)

            {

            }

        }

        # Start with no binaries listed.

        my @binaries = ();

        my $tempPkgFileName = $pkgFileName."_@@TEMP@@";

        unlink($tempPkgFileName);

        open (NEW_PKG, ">>".$tempPkgFileName);

        open (PKG, "<".$pkgFileName);

        my $manufacturerElseBlock = 0;

        # Parse each line.

        while (<PKG>)

        {

            # Patch pkg UID

            my $line = $_;

            my $newLine = $line;

            if ($line =~ m/^\#.*\(0x[0-9|a-f|A-F]*\).*$/)

            {

                $newLine =~ s/\(0x./\(0xE/;

            }

            # Patch embedded sis name and UID

            if ($line =~ m/^@.*\.sis.*\(0x[0-9|a-f|A-F]*\).*$/)

            {

                $newLine =~ s/\(0x./\(0xE/;

                if ($line !~ m/^.*_selfsigned.sis.*$/)

                {

                    $newLine =~ s/\.sis/_selfsigned\.sis/i;

                }

            }

            # Remove dependencies to known problem packages (i.e. packages that are likely to be patched, also)

            # to reduce unnecessary error messages.

            if ($line =~ m/^\(0x2002af5f\).*\{.*\}$/)

            {

                $newLine = "\n"

            }

            if ($line =~ m/^\(0x2001E61C\).*\{.*\}$/)

            {

                $newLine = "\n"

            }

            # Remove manufacturer ifdef

            if ($line =~ m/^.*\(MANUFACTURER\)\=\(.*\).*$/)

            {

                $newLine = "\n";

            }

            if ($line =~ m/^ELSEIF.*MANUFACTURER$/)

            {

                $manufacturerElseBlock = 1;

            }

            if ($manufacturerElseBlock eq 1)

            {

                $newLine = "\n";

            }

            if ($line =~ m/^ENDIF.*MANUFACTURER$/)

            {

                $manufacturerElseBlock = 0;

            }

            # If the line specifies a file, parse the source and destination locations.

            if ($line =~ m|\"([^\"]+)\"\s*\-\s*\"([^\"]+)\"|)

            {

                my $sourcePath = $1;

                # If the given file is a binary, check the target and binary type (+ the actual filename) from its path.

                {

                    # Do preprocessing for template pkg,

                    # In case of template pkg target and platform variables are set

                    if(length($target) && length($platform))

                    {

                        $sourcePath =~ s/\$\(PLATFORM\)/$platform/gm;

                        $sourcePath =~ s/\$\(TARGET\)/$target/gm;

                    }

                }

            }

        }

        close (PKG);

        close (NEW_PKG);

        unlink($pkgFileName);

        rename($tempPkgFileName, $pkgFileName);

        print ("\n");

        # Actually set the capabilities of the listed binaries.

        foreach my $binaryPath(@binaries)

        {

            # Create the command line for setting the capabilities.

            my $commandToExecute = $baseCommandToExecute;

            $commandToExecute .= $binaryPath;

            # Actually execute the elftran command to set the capabilities.

            ## Create another command line to check that the set capabilities are correct.

            #$commandToExecute = "elftran -dump s ".$binaryPath;

        }

        print ("\n");

    }

}

else

{

    Usage();

}