Added basic offset support in client CRYPTO frames. The offset in client CRYPTO frames is tracked in c->quic->crypto_offset_in. This means that CRYPTO frames with non-zero offset are now accepted making possible to finish handshake with client certificates that exceed max packet size (if no reordering happens). The c->quic->crypto_offset field is renamed to crypto_offset_out to avoid confusion with tracking of incoming CRYPTO stream.

/*
 * 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