QUIC: removed compatibility with older BoringSSL API. SSL_CIPHER_get_protocol_id() appeared in BoringSSL somewhere between BORINGSSL_API_VERSION 12 and 13 for compatibility with OpenSSL 1.1.1. It was adopted without a proper macro test, which remained unnoticed. This justifies that such old BoringSSL API isn't widely used and its support can be dropped. While here, removed SSL_set_quic_use_legacy_codepoint() that became useless after the default was flipped in BoringSSL over a year ago.

/*
 * Copyright (C) Maxim Dounin
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>


#if (NGX_HAVE_DLOPEN)

char *
ngx_dlerror(void)
{
    char  *err;

    err = (char *) dlerror();

    if (err == NULL) {
        return "";
    }

    return err;
}

#endif