#! /usr/bin/env perl

# Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.

#

# Licensed under the OpenSSL license (the "License").  You may not use

# this file except in compliance with the License.  You can obtain a copy

# in the file LICENSE in the source distribution or at

# https://www.openssl.org/source/license.html

# Generate progs.h file by looking for command mains in list of C files

# passed on the command line.

use strict;

use warnings;

use lib '.';

use configdata qw/@disablables %unified_info/;

my %commands     = ();

my $cmdre        = qr/^\s*int\s+([a-z_][a-z0-9_]*)_main\(\s*int\s+argc\s*,/;

my $apps_openssl = shift @ARGV;

my $YEAR         = [localtime()]->[5] + 1900;

# because the program apps/openssl has object files as sources, and

# they then have the corresponding C files as source, we need to chain

# the lookups in %unified_info

my @openssl_source =

    map { @{$unified_info{sources}->{$_}} }

    grep { /\.o$/ }

        @{$unified_info{sources}->{$apps_openssl}};

foreach my $filename (@openssl_source) {

    open F, $filename or die "Couldn't open $filename: $!\n";

    foreach ( grep /$cmdre/, <F> ) {

        my @foo = /$cmdre/;

        $commands{$1} = 1;

    }

    close F;

}

@ARGV = sort keys %commands;

print <<"EOF";

/*

 * WARNING: do not edit!

 * Generated by apps/progs.pl

 *

 * Copyright 1995-$YEAR The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

typedef enum FUNC_TYPE {

    FT_none, FT_general, FT_md, FT_cipher, FT_pkey,

    FT_md_alg, FT_cipher_alg

} FUNC_TYPE;

typedef struct function_st {

    FUNC_TYPE type;

    const char *name;

    int (*func)(int argc, char *argv[]);

    const OPTIONS *help;

} FUNCTION;

DEFINE_LHASH_OF(FUNCTION);

EOF

foreach (@ARGV) {

    printf "extern int %s_main(int argc, char *argv[]);\n", $_;

}

print "\n";

foreach (@ARGV) {

    printf "extern const OPTIONS %s_options[];\n", $_;

}

print "\n";

my %cmd_disabler = (

    ciphers  => "sock",

    genrsa   => "rsa",

    rsautl   => "rsa",

    gendsa   => "dsa",

    dsaparam => "dsa",

    gendh    => "dh",

    dhparam  => "dh",

    ecparam  => "ec",

    pkcs12   => "des",

);

print "#ifdef INCLUDE_FUNCTION_TABLE\n";

print "static FUNCTION functions[] = {\n";

foreach my $cmd ( @ARGV ) {

    my $str = "    {FT_general, \"$cmd\", ${cmd}_main, ${cmd}_options},\n";

    if ($cmd =~ /^s_/) {

        print "#ifndef OPENSSL_NO_SOCK\n${str}#endif\n";

    } elsif (grep { $cmd eq $_ } @disablables) {

        print "#ifndef OPENSSL_NO_" . uc($cmd) . "\n${str}#endif\n";

    } elsif (my $disabler = $cmd_disabler{$cmd}) {

        print "#ifndef OPENSSL_NO_" . uc($disabler) . "\n${str}#endif\n";

    } else {

        print $str;

    }

}

my %md_disabler = (

    blake2b512 => "blake2",

    blake2s256 => "blake2",

);

foreach my $cmd (

    "md2", "md4", "md5",

    "gost",

    "sha1", "sha224", "sha256", "sha384",

    "sha512", "sha512-224", "sha512-256",

    "sha3-224", "sha3-256", "sha3-384", "sha3-512",

    "shake128", "shake256",

    "mdc2", "rmd160", "blake2b512", "blake2s256",

    "sm3"

) {

    my $str = "    {FT_md, \"$cmd\", dgst_main},\n";

    if (grep { $cmd eq $_ } @disablables) {

        print "#ifndef OPENSSL_NO_" . uc($cmd) . "\n${str}#endif\n";

    } elsif (my $disabler = $md_disabler{$cmd}) {

        print "#ifndef OPENSSL_NO_" . uc($disabler) . "\n${str}#endif\n";

    } else {

        print $str;

    }

}

my %cipher_disabler = (

    des3  => "des",

    desx  => "des",

    cast5 => "cast",

);

foreach my $cmd (

    "aes-128-cbc", "aes-128-ecb",

    "aes-192-cbc", "aes-192-ecb",

    "aes-256-cbc", "aes-256-ecb",

    "aria-128-cbc", "aria-128-cfb",

    "aria-128-ctr", "aria-128-ecb", "aria-128-ofb",

    "aria-128-cfb1", "aria-128-cfb8",

    "aria-192-cbc", "aria-192-cfb",

    "aria-192-ctr", "aria-192-ecb", "aria-192-ofb",

    "aria-192-cfb1", "aria-192-cfb8",

    "aria-256-cbc", "aria-256-cfb",

    "aria-256-ctr", "aria-256-ecb", "aria-256-ofb",

    "aria-256-cfb1", "aria-256-cfb8",

    "camellia-128-cbc", "camellia-128-ecb",

    "camellia-192-cbc", "camellia-192-ecb",

    "camellia-256-cbc", "camellia-256-ecb",

    "base64", "zlib",

    "des", "des3", "desx", "idea", "seed", "rc4", "rc4-40",

    "rc2", "bf", "cast", "rc5",

    "des-ecb", "des-ede", "des-ede3",

    "des-cbc", "des-ede-cbc","des-ede3-cbc",

    "des-cfb", "des-ede-cfb","des-ede3-cfb",

    "des-ofb", "des-ede-ofb","des-ede3-ofb",

    "idea-cbc","idea-ecb", "idea-cfb", "idea-ofb",

    "seed-cbc","seed-ecb", "seed-cfb", "seed-ofb",

    "rc2-cbc", "rc2-ecb", "rc2-cfb","rc2-ofb", "rc2-64-cbc", "rc2-40-cbc",

    "bf-cbc", "bf-ecb", "bf-cfb", "bf-ofb",

    "cast5-cbc","cast5-ecb", "cast5-cfb","cast5-ofb",

    "cast-cbc", "rc5-cbc", "rc5-ecb", "rc5-cfb", "rc5-ofb",

    "sm4-cbc", "sm4-ecb", "sm4-cfb", "sm4-ofb", "sm4-ctr"

) {

    my $str = "    {FT_cipher, \"$cmd\", enc_main, enc_options},\n";

    (my $algo = $cmd) =~ s/-.*//g;

    if ($cmd eq "zlib") {

        print "#ifdef ZLIB\n${str}#endif\n";

    } elsif (grep { $algo eq $_ } @disablables) {

        print "#ifndef OPENSSL_NO_" . uc($algo) . "\n${str}#endif\n";

    } elsif (my $disabler = $cipher_disabler{$algo}) {

        print "#ifndef OPENSSL_NO_" . uc($disabler) . "\n${str}#endif\n";

    } else {

        print $str;

    }

}

print "    {0, NULL, NULL}\n};\n";

print "#endif\n";