unit module OpenSSL::Stack;

use NativeCall;
use OpenSSL::NativeLib;
use OpenSSL::Version;

class OpenSSL::Stack is repr('CStruct') {
    has int32 $.num;
    has CArray[CArray[uint8]] $.data;
    has int32 $.sorted;
    has int32 $.num_alloc;
    has Pointer $.comp;
}

my sub real_symbol(Str $sym) returns Str {
    state Int $v = OpenSSL::Version::version_num();
    state Bool $is_libressl = OpenSSL::Version::version().contains('LibreSSL');
    return $v >= 0x10100000 && !$is_libressl ?? "OPENSSL_$sym" !! $sym;
}

our sub sk_num(OpenSSL::Stack) returns int32 is native(&gen-lib) is symbol(real_symbol('sk_num')) { ... }
our sub sk_value(OpenSSL::Stack, int32) returns Pointer is native(&gen-lib) is symbol(real_symbol('sk_value')) { ... }
our sub sk_free(OpenSSL::Stack) is native(&gen-lib) is symbol(real_symbol('sk_free')) { ... }